@font-face {
    font-family: "CardNameCorporateLogo";
    src:
        url("../font/Corporate-Logo-Bold-ver3-web.otf") format("opentype");
    font-weight: 700;
    font-style: normal;
    font-display: block;
}

body {
    --ui-font-family: "LINE Seed JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --settings-slide-duration: 420ms;
    --settings-slide-easing: cubic-bezier(.22, 1, .36, 1);
    --settings-sheet-rest-y: 0px;
    background: #000 url("../img/bg.webp") center bottom / cover no-repeat fixed;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 0 0 40px;
    box-sizing: border-box;
    margin: 0;
    overflow-x: hidden;
    font-family: var(--ui-font-family);
    flex-direction: column;
}

[hidden] {
    display: none !important;
}

.site-header {
    box-sizing: border-box;
    align-self: stretch;
    width: auto;
    padding: 18px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.site-header__title {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    margin: 0;
    color: #fff;
    line-height: 1.2;
}

.site-header__logo {
    display: block;
    width: auto;
    height: 30px;
    transform: translateX(-3px);
}

.site-header__subtitle {
    color: rgba(255, 255, 255, 0.78);
    font-size: 12px;
    font-weight: 700;
}

.app {
    display: grid;
    grid-template-columns: repeat(2, 320px);
    width: 670px;
    align-items: start;
    column-gap: 30px;
    row-gap: 54px;
    margin-top: 40px;
    margin-bottom: clamp(120px, 16vh, 180px);
}

.mobile-tabs {
    display: none;
}

.card-stage {
    grid-column: 1;
    grid-row: 1;
    width: 320px;
    height: auto;
    position: relative;
    flex: 0 0 auto;
    perspective: 920px;
    perspective-origin: center center;
}

.card-stage.is-export-measuring {
    position: fixed !important;
    top: 0 !important;
    left: -10000px !important;
    z-index: -1 !important;
    display: block !important;
    width: 320px !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

.card-stage.is-export-measuring .seal-landing {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
}

.finalize-note a,
.completion__publish-notice a,
.publish-consent a,
.site-footer a {
    color: #f7df45;
    text-underline-offset: 3px;
}

.publish-consent a:focus-visible,
.site-footer a:focus-visible {
    outline: 2px solid rgba(247, 223, 69, 0.5);
    outline-offset: 3px;
}

.back-stage {
    grid-column: 2;
    grid-row: 1;
    width: 320px;
    perspective: 920px;
}

.back-stage.is-export-measuring {
    position: fixed !important;
    top: 0 !important;
    left: -10000px !important;
    z-index: -1 !important;
    display: block !important;
    width: 320px !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

.back-stage.is-export-measuring .seal-landing {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
}

.seal-landing {
    width: 320px;
    height: 320px;
    transform-origin: 50% 50%;
    transform-style: preserve-3d;
    will-change: transform, opacity;
}

html.seal-landing-pending .seal-landing {
    opacity: 0;
}

html.seal-landing-ready .seal-landing--front {
    animation: seal-magic-pop 620ms cubic-bezier(.22, .61, .36, 1) 80ms backwards;
}

html.seal-landing-ready .seal-landing--back {
    animation: seal-magic-pop 620ms cubic-bezier(.22, .61, .36, 1) 80ms backwards;
}

@keyframes seal-magic-pop {
    0% {
        opacity: 0;
        transform: translate(
            var(--seal-start-x, 0px),
            var(--seal-start-y, 20vh)
        ) scale(.18);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

html.seal-landing-pending .front-secondary-settings,
html.seal-landing-pending .back-stage__actions {
    opacity: 0;
}

html.seal-landing-ready .front-secondary-settings,
html.seal-landing-ready .back-stage__actions {
    animation: seal-actions-fade-in 280ms ease-out 700ms backwards;
}

@keyframes seal-actions-fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

html.seal-landing-pending .seal-type-section .seal-preset {
    opacity: 0;
}

html.seal-landing-ready .seal-type-section .seal-preset {
    transform-origin: 50% 50%;
    animation: seal-preset-spin-in 460ms cubic-bezier(.18, .78, .25, 1) backwards;
}

html.seal-landing-ready .seal-type-section .seal-preset:nth-child(1) {
    animation-delay: 780ms;
}

html.seal-landing-ready .seal-type-section .seal-preset:nth-child(2) {
    animation-delay: 860ms;
}

html.seal-landing-ready .seal-type-section .seal-preset:nth-child(3) {
    animation-delay: 940ms;
}

html.seal-landing-ready .seal-type-section .seal-preset:nth-child(4) {
    animation-delay: 1020ms;
}

html.seal-landing-ready .seal-type-section .seal-preset:nth-child(5) {
    animation-delay: 1100ms;
}

html.seal-landing-ready .seal-type-section .seal-preset:nth-child(6) {
    animation-delay: 1180ms;
}

@keyframes seal-preset-spin-in {
    from {
        opacity: 0;
        transform: scale(.18) rotate(-180deg);
    }

    to {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

@keyframes editor-tab-front-out {
    from {
        transform: rotateY(0deg);
    }

    to {
        transform: rotateY(180deg);
    }
}

@keyframes editor-tab-back-in {
    from {
        transform: rotateY(-180deg);
    }

    to {
        transform: rotateY(0deg);
    }
}

@keyframes editor-tab-back-out {
    from {
        transform: rotateY(0deg);
    }

    to {
        transform: rotateY(-180deg);
    }
}

@keyframes editor-tab-front-in {
    from {
        transform: rotateY(180deg);
    }

    to {
        transform: rotateY(0deg);
    }
}

.back-stage__actions {
    position: relative;
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
}

.back-card {
    --back-card-color: #fff3a6;
    --back-ink-color: #403d2a;
    --back-ink-rgb: 64, 61, 42;
    position: relative;
    box-sizing: border-box;
    width: 320px;
    height: 320px;
    overflow: hidden;
    padding: 7px 9px 14px;
    color: var(--back-ink-color);
    background:
        linear-gradient(rgba(255, 255, 255, 0.08), rgba(var(--back-ink-rgb), 0.04)),
        var(--back-card-color);
    border: 1px solid rgba(var(--back-ink-rgb), 0.22);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6), inset 0 0 24px rgba(var(--back-ink-rgb), 0.10);
    font-family: "CardNameCorporateLogo", "Hiragino Kaku Gothic StdN", "Yu Gothic", sans-serif;
}

.back-card::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.16;
    background-image: repeating-linear-gradient(0deg, transparent 0 2px, rgba(var(--back-ink-rgb), 0.10) 3px);
    mix-blend-mode: multiply;
}

.back-card__header,
.back-card__name,
.back-card__description,
.back-card__illustration,
.back-card__url {
    position: relative;
    z-index: 1;
}

.back-card__header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 26px;
    white-space: nowrap;
    transform: translateY(-2px);
}

.back-card__brand-logo {
    display: block;
    width: auto;
    height: 20px;
    filter: brightness(0);
}

.back-card__brand-sub {
    font-family: var(--ui-font-family);
    font-size: 14px;
    font-weight: 700;
}

.back-card__name {
    margin: 5px 0 9px;
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    letter-spacing: 0.02em;
    color: var(--back-name-color, #fff9d7);
    -webkit-text-stroke: 5px var(--back-ink-color);
    paint-order: stroke fill;
}

.back-card__description {
    margin: 0 auto;
    max-width: 254px;
    max-height: 70px;
    overflow: hidden;
    font-family: var(--ui-font-family);
    font-size: 14px;
    font-weight: 700;
    line-height: 1.45;
    text-align: left;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.back-card.is-illustration-hidden .back-card__description {
    max-height: 204px;
}

.back-card__illustration {
    position: absolute;
    right: 8px;
    bottom: 24px;
    left: 8px;
    height: 142px;
    display: grid;
    place-items: center;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.16s ease, box-shadow 0.16s ease;
}

.back-card__illustration.is-dragging {
    background: rgba(255, 255, 255, 0.20);
    box-shadow: inset 0 0 0 2px rgba(var(--back-ink-rgb), 0.22);
}

@media (hover: hover) and (pointer: fine) {
    .back-card__illustration:hover {
        background: rgba(255, 255, 255, 0.20);
        box-shadow: inset 0 0 0 2px rgba(var(--back-ink-rgb), 0.22);
    }
}

.back-card__illustration.is-processing {
    cursor: progress;
    pointer-events: none;
}

.back-card__illustration.is-processing .back-card__illustration-placeholder {
    display: none;
}

.back-card__illustration.is-processing .back-card__loading-copy {
    display: grid;
}

.back-card__illustration.is-processing .card__loading-icon {
    animation: card-loading-spin 0.72s linear infinite;
}

.back-card__illustration:focus-visible {
    outline: 3px solid rgba(var(--back-ink-rgb), 0.48);
    outline-offset: 2px;
}

.back-card__illustration.is-hidden {
    display: none;
}

.back-card__illustration img {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    filter: grayscale(1) contrast(1.35);
    mix-blend-mode: multiply;
}

.back-card__illustration img[hidden],
.back-card__illustration-placeholder[hidden] {
    display: none;
}

.back-card__illustration-placeholder {
    box-sizing: border-box;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 3px;
    width: 100%;
    height: 100%;
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.50);
    color: var(--back-ink-color);
    font-family: var(--ui-font-family);
    font-weight: 700;
    text-align: center;
}

.back-card__loading-copy {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: none;
    place-content: center;
    justify-items: center;
    gap: 8px;
    color: var(--back-ink-color);
    font-family: var(--ui-font-family);
    font-size: 13px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    pointer-events: none;
}

.back-card__upload-icon {
    display: block;
    width: 50px;
    height: 50px;
    margin-bottom: 1px;
    color: var(--back-ink-color);
    fill: currentColor;
}

.back-card__upload-title {
    font-size: 14px;
    line-height: 1.2;
}

.back-card__upload-note {
    color: rgba(var(--back-ink-rgb), 0.82);
    font-size: 12.5px;
    line-height: 1.1;
}

.upload-rights-note {
    display: block;
    margin-top: 5px;
    color: rgba(var(--back-ink-rgb), 0.72);
    font-size: 10px;
    font-weight: 700;
    line-height: 1.35;
}

.back-card__url {
    position: absolute;
    right: 0;
    bottom: 7px;
    left: 0;
    margin: 0;
    font-family: var(--ui-font-family);
    font-size: 9px;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    letter-spacing: 0.03em;
}

.card {
    --holo-hue-deg: 0deg;
    --holo-image-angle-deg: 28deg;
    --holo-image-color-a: 255, 72, 198;
    --holo-image-color-b: 255, 250, 138;
    --holo-image-color-c: 80, 232, 255;
    --holo-image-color-d: 108, 88, 255;
    --holo-image-color-e: 68, 255, 126;
    --holo-hover: 0;
    --holo-x: 50%;
    --holo-y: 50%;
    width: 320px;
    height: 320px;
    position: relative;
    transform-style: preserve-3d;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    cursor: pointer;
    will-change: transform;
    background-color: #333;
    touch-action: none;
}

.card.is-returning {
    transition: transform 0.75s ease-out;
    transition: transform 0.75s linear(0, 1.18 42%, 0.92 68%, 1);
}

.card__layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.card__holo-base {
    z-index: 1;
    mix-blend-mode: normal;
}

.card__image {
    --image-area-width: 300px;
    --image-area-height: 260px;
    --image-area-left: 10px;
    --image-area-top: 50px;
    --image-area-center-y: 180px;
    z-index: 2;
    mix-blend-mode: normal;
    pointer-events: auto;
    touch-action: none;
}

.card__image.is-borderless {
    --image-area-width: 320px;
    --image-area-height: 270px;
    --image-area-left: 0px;
    --image-area-center-y: 185px;
}

.card__image::before {
    content: "";
    position: absolute;
    top: var(--image-area-top);
    left: var(--image-area-left);
    width: var(--image-area-width);
    height: var(--image-area-height);
    box-sizing: border-box;
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.50);
    pointer-events: none;
}

.card__image::after {
    content: "";
    position: absolute;
    top: calc(var(--image-area-center-y) - 28px);
    left: 50%;
    z-index: 1;
    width: 50px;
    height: 50px;
    background: url("../img/icon_add-photo.svg") center center / contain no-repeat;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.card__upload-copy {
    position: absolute;
    top: calc(var(--image-area-center-y) + 1px);
    left: var(--image-area-left);
    width: var(--image-area-width);
    z-index: 1;
    display: grid;
    gap: 5px;
    color: #000;
    font-family: var(--ui-font-family);
    letter-spacing: 0;
    text-align: center;
    text-shadow: none;
    pointer-events: none;
}

.card__upload-title {
    font-size: 14px;
    font-weight: 700;
    line-height: 1.2;
}

.card__upload-note {
    color: #4f4f4f;
    font-size: 12.5px;
    font-weight: 700;
    line-height: 1.1;
}

.card__image.is-processing {
    background-image: none;
    cursor: wait;
}

.card__image.is-processing .card__character-canvas {
    visibility: hidden;
    opacity: 0;
}

.card__image.is-processing::after {
    display: none;
}

.card__loading-copy {
    position: absolute;
    top: var(--image-area-center-y);
    left: 50%;
    z-index: 2;
    display: none;
    justify-items: center;
    gap: 8px;
    width: 120px;
    color: #000;
    font-family: var(--ui-font-family);
    font-size: 13px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0;
    text-align: center;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.card__loading-icon {
    display: block;
    box-sizing: border-box;
    width: 58px;
    height: 58px;
    border: 5px solid rgba(0, 0, 0, 0.16);
    border-top-color: currentColor;
    border-right-color: currentColor;
    border-radius: 50%;
    will-change: transform;
}

.card__image.is-processing .card__loading-icon {
    animation: card-loading-spin 0.72s linear infinite;
}

@keyframes card-loading-spin {
    to {
        transform: rotate(1turn);
    }
}

.card__image.is-processing .card__loading-copy {
    display: grid;
}

.card__image.has-upload.is-processing .card__loading-copy {
    top: 50%;
}

.card__image:focus-visible::before {
    outline: 3px solid rgba(247, 223, 69, 0.64);
    outline-offset: 4px;
}

.card__image.has-upload {
    top: var(--image-area-top);
    left: var(--image-area-left);
    width: var(--image-area-width);
    height: var(--image-area-height);
    z-index: 7;
    mix-blend-mode: normal;
}

.card.is-hologram {
    background-color: #242423;
}

.card.is-hologram-circles .card__holo-base {
    filter: blur(0.35px);
    opacity: 1;
}

.card.is-hologram .card__image::before {
    border: 1px solid rgba(255, 255, 255, 0.20);
    background: rgba(255, 255, 255, 0.09);
    box-shadow:
        inset 0 1px 20px rgba(255, 255, 255, 0.08),
        inset 0 -18px 48px rgba(0, 0, 0, 0.18);
}

.card.is-hologram .card__image::after {
    filter: invert(1);
}

.card.is-hologram .card__loading-copy {
    color: rgba(255, 255, 255, 0.88);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.66);
}

.card.is-hologram .card__upload-copy {
    color: rgba(255, 255, 255, 0.88);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.66);
}

.card.is-hologram .card__upload-note {
    color: rgba(255, 255, 255, 0.62);
}

.card.is-hologram .upload-rights-note {
    color: rgba(255, 255, 255, 0.58);
}

.card.is-hologram .card__image.has-upload {
    background-image: none;
    filter: none;
    mix-blend-mode: normal;
}

.card__character-canvas {
    position: absolute;
    inset: 0;
    z-index: 0;
    display: none;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.card__image.has-upload .card__character-canvas {
    display: block;
}

.card__image.has-upload.is-processing .card__character-canvas {
    display: none;
}

.card__image.has-upload::before {
    display: none;
}

.card__image.has-upload.is-processing::before {
    display: block;
    top: 0;
    left: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
}

@media (hover: hover) and (pointer: fine) {
    .card__image:hover::before {
        box-shadow: inset 0 0 0 2px rgba(0, 0, 0, 0.22);
    }

    .card__image.has-upload:hover {
        border-radius: 15px;
        background-color: rgba(255, 255, 255, 0.20);
    }

    .card__image.has-upload:hover::before {
        display: block;
        top: 0;
        left: 0;
        z-index: 3;
        width: 100%;
        height: 100%;
        border: 0;
        background: transparent;
    }

    .card.is-hologram .card__image:hover::before {
        box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.34);
    }
}

.card.is-hologram .card__image.has-upload.is-processing::before {
    border: 1px solid rgba(255, 255, 255, 0.20);
    background: rgba(255, 255, 255, 0.09);
    box-shadow:
        inset 0 1px 20px rgba(255, 255, 255, 0.08),
        inset 0 -18px 48px rgba(0, 0, 0, 0.18);
}

.card__image.has-upload::after {
    display: none;
}

.card.is-hologram .card__image.has-upload::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    display: none;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle 120px at var(--holo-x) var(--holo-y),
            rgba(255, 255, 255, 0.28) 0%,
            rgba(var(--holo-image-color-a), 0.44) 24%,
            rgba(var(--holo-image-color-b), 0.42) 52%,
            rgba(255, 255, 255, 0) 78%),
        radial-gradient(circle 170px at 24% 28%,
            rgba(var(--holo-image-color-a), 0.62) 0%,
            rgba(var(--holo-image-color-a), 0.30) 32%,
            rgba(var(--holo-image-color-a), 0) 62%),
        radial-gradient(circle 160px at 76% 25%,
            rgba(var(--holo-image-color-b), 0.66) 0%,
            rgba(var(--holo-image-color-b), 0.31) 34%,
            rgba(var(--holo-image-color-b), 0) 64%),
        radial-gradient(circle 172px at 82% 78%,
            rgba(var(--holo-image-color-c), 0.62) 0%,
            rgba(var(--holo-image-color-c), 0.30) 32%,
            rgba(var(--holo-image-color-c), 0) 62%),
        radial-gradient(circle 168px at 35% 84%,
            rgba(var(--holo-image-color-d), 0.58) 0%,
            rgba(var(--holo-image-color-d), 0.28) 32%,
            rgba(var(--holo-image-color-d), 0) 62%),
        radial-gradient(circle 156px at 48% 48%,
            rgba(var(--holo-image-color-e), 0.48) 0%,
            rgba(var(--holo-image-color-e), 0.22) 34%,
            rgba(var(--holo-image-color-e), 0) 66%);
    mix-blend-mode: color-dodge;
    opacity: calc(0.50 + var(--holo-hover) * 0.12);
    transform: none;
    pointer-events: none;
    -webkit-mask-image: var(--layer-mask);
    mask-image: var(--layer-mask);
    -webkit-mask-position: center center;
    mask-position: center center;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-size: contain;
    mask-size: contain;
}

.card.is-hologram .card__image.has-upload.is-processing::after {
    display: none;
}

.card__image.has-upload .card__upload-copy,
.card__image.is-processing .card__upload-copy {
    display: none;
}

.image-upload-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.card__glare {
    z-index: 10;
    --glare-wash-angle: 45deg;
    --glare-spot-alpha: 0;
    --glare-spot-mid-alpha: 0;
    --glare-spot-edge-alpha: 0;
    --glare-film-alpha: 0.10;
    --glare-wash-alpha: 0.12;
    --glare-wash-mid-alpha: 0.054;
    mix-blend-mode: plus-lighter;
    background:
        linear-gradient(var(--glare-wash-angle),
            rgba(255, 255, 255, var(--glare-wash-alpha)) 0%,
            rgba(255, 255, 255, var(--glare-wash-mid-alpha)) 28%,
            rgba(255, 255, 255, 0.0) 72%),
        radial-gradient(circle 125px at var(--x, 50%) var(--y, 50%),
            rgba(255, 255, 255, var(--glare-spot-alpha)) 0%,
            rgba(255, 255, 255, var(--glare-spot-mid-alpha)) 34%,
            rgba(220, 235, 255, var(--glare-spot-edge-alpha)) 68%,
            rgba(255, 255, 255, 0.0) 100%);
    opacity: 0.38;
    transition: opacity 0.2s ease-out;
}

.card__glare::before,
.card__glare::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.card__glare::before {
    mix-blend-mode: soft-light;
    background:
        linear-gradient(45deg,
            rgba(0, 0, 0, 0.18) 0%,
            rgba(255, 255, 255, 0.045) 18%,
            rgba(255, 255, 255, 0.0) 42%,
            rgba(255, 255, 255, var(--glare-film-alpha)) 72%,
            rgba(0, 0, 0, 0.0) 100%);
    opacity: 0.42;
}

.card__glare::after {
    mix-blend-mode: soft-light;
    background:
        radial-gradient(circle 125px at var(--x, 50%) var(--y, 50%),
            rgba(255, 255, 255, var(--glare-spot-alpha)) 0%,
            rgba(255, 255, 255, var(--glare-spot-mid-alpha)) 36%,
            rgba(255, 255, 255, 0.00) 100%);
    opacity: 0.30;
}

.card:hover .card__glare {
    opacity: 0.5;
}

@media (hover: none) {
    .card:hover .card__glare {
        opacity: 0.38;
    }
}

.card.is-hologram .card__glare {
    z-index: 12;
    mix-blend-mode: plus-lighter;
    opacity: calc(0.24 + var(--holo-hover) * 0.20);
    background:
        radial-gradient(circle 122px at var(--holo-x) var(--holo-y),
            rgba(255, 255, 255, 0.24) 0%,
            hsla(var(--holo-hue-deg), 100%, 58%, 0.30) 30%,
            rgba(0, 255, 136, 0.16) 58%,
            rgba(255, 255, 255, 0) 78%),
        linear-gradient(calc(var(--glare-wash-angle) + 18deg),
            rgba(255, 255, 255, 0) 8%,
            rgba(85, 255, 128, 0.22) 34%,
            rgba(0, 128, 255, 0.08) 58%,
            rgba(255, 211, 0, 0.16) 82%),
        conic-gradient(from var(--holo-hue-deg) at 50% 50%,
            rgba(0, 255, 94, 0.20),
            rgba(255, 228, 0, 0.16),
            rgba(255, 45, 28, 0.16),
            rgba(31, 110, 255, 0.18),
            rgba(0, 255, 191, 0.20),
            rgba(0, 255, 94, 0.20));
}

.card__name {
    z-index: 6;
    top: 4px;
    height: 116px;
    color: var(--name-color, rgb(255, 0, 0));
    mix-blend-mode: normal;
    --name-font-size: 46px;
    --name-stroke-width: 8px;
}

.card__name-flat,
.card__name-curve {
    position: absolute;
    inset: 0;
}

.card__name-flat {
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0 8px;
    font-family: "CardNameCorporateLogo", "Hiragino Kaku Gothic StdN", "Yu Gothic", sans-serif;
    font-size: var(--name-font-size);
    font-weight: 700;
    line-height: 0.92;
    letter-spacing: 0;
    text-align: center;
    white-space: nowrap;
    -webkit-text-stroke: var(--name-stroke-width) #000;
    paint-order: stroke fill;
}

.card__name-curve {
    display: block;
    overflow: visible;
}

.card__name-curve text,
.card__name-curve textPath {
    fill: currentColor;
    stroke: #000;
    stroke-width: var(--name-stroke-width);
    stroke-linejoin: round;
    stroke-linecap: round;
    paint-order: stroke fill;
    font-family: "CardNameCorporateLogo", "Hiragino Kaku Gothic StdN", "Yu Gothic", sans-serif;
    font-size: var(--name-font-size);
    font-weight: 700;
    letter-spacing: 0;
}

.card__name:not(.is-curved) .card__name-flat {
    display: flex;
    transform: translateY(-27px);
}

.card__name:not(.is-curved) .card__name-curve {
    display: none;
}

.seal-presets {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: center;
    width: 100%;
    max-width: 1020px;
    margin-left: 0;
    overflow: hidden;
}

.seal-presets__heading {
    display: none;
}

.seal-presets__track {
    display: flex;
    justify-content: center;
    gap: 8px;
    overflow-x: auto;
    padding: 2px 12px;
    box-sizing: border-box;
    overscroll-behavior-x: contain;
    scroll-behavior: smooth;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    cursor: grab;
    user-select: none;
    touch-action: pan-x pan-y;
    -webkit-overflow-scrolling: touch;
}

.seal-presets__track::-webkit-scrollbar {
    display: none;
}

.seal-presets__track.is-dragging {
    cursor: grabbing;
    scroll-snap-type: none;
}

.seal-preset {
    flex: 0 0 114px;
    box-sizing: border-box;
    display: grid;
    gap: 6px;
    padding: 6px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 7px;
    background: #050505;
    color: rgba(255, 255, 255, 0.78);
    font: inherit;
    cursor: pointer;
    scroll-snap-align: start;
    touch-action: pan-x pan-y;
}

.seal-preset.is-active {
    border-color: rgb(247, 209, 37);
    background: #171103;
    box-shadow:
        0 0 0 2px rgba(247, 209, 37, 0.25),
        0 10px 24px rgba(0, 0, 0, 0.35);
    color: #fff;
}

.seal-preset:focus-visible {
    outline: 2px solid rgba(247, 223, 69, 0.72);
    outline-offset: 3px;
}

.seal-preset__preview {
    position: relative;
    display: block;
    width: 100px;
    height: 100px;
    overflow: hidden;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    background-color: #161616;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}

.seal-preset__preview::before,
.seal-preset__preview::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.seal-preset__preview--rainbow {
    background-image: url("../img/thumb_prizm-square-rainbow.webp");
}

.seal-preset__preview--solid {
    background-image:
        linear-gradient(
            var(--prism-solid-preview-color, #640000),
            var(--prism-solid-preview-color, #640000)
        ),
        url("../img/thumb_prizm-square-color.webp");
    background-blend-mode: hard-light, normal;
}

.seal-preset__preview--solid::after {
    z-index: 1;
    background-image: url("../img/thumb_prizm-square-color.webp");
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    mix-blend-mode: screen;
    filter: grayscale(1) brightness(0.58) contrast(8);
    opacity: 0.6;
}

.seal-preset__preview--metallic-silver {
    background-image: url("../img/thumb_metallic_silver.webp");
}

.seal-preset__preview--metallic-gold {
    background-image: url("../img/thumb_metallic_gold.webp");
}

.seal-preset__preview--hologram {
    background-image: url("../img/thumb_hologram-radiation.webp");
}

.seal-preset__preview--hologram-circles {
    background-image: url("../img/thumb_hologram-circle.webp");
}

.seal-preset__upload {
    position: absolute;
    top: 15.625%;
    right: 3.125%;
    bottom: 3.125%;
    left: 3.125%;
    z-index: 2;
    display: none;
    pointer-events: none;
}

.seal-preset__upload-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.seal-preset__preview--hologram .seal-preset__upload,
.seal-preset__preview--hologram-circles .seal-preset__upload {
    filter:
        saturate(1.60)
        contrast(1.00)
        brightness(1.36);
}

.seal-presets.has-upload .seal-preset__upload {
    display: block;
}

.seal-presets.is-image-borderless .seal-preset__upload {
    right: 0;
    bottom: 0;
    left: 0;
}

.seal-preset__label {
    display: block;
    min-height: 28px;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: 0;
    text-align: center;
    white-space: normal;
}

.seal-presets__actions {
    box-sizing: border-box;
    width: min(670px, calc(100% - 24px));
    margin: 8px auto 0;
    padding: 2px 0 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.controls {
    box-sizing: border-box;
    width: 100%;
    display: grid;
    gap: 10px;
    padding: 0;
    color: #f2f2ee;
    background: transparent;
    border: 0;
    box-shadow: none;
    font-family: var(--ui-font-family);
}

.controls > .settings-accordion {
    margin-bottom: 0;
}

.controls__heading {
    margin: 0;
    padding-bottom: 7px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.17);
    color: #fff;
    font-size: 14px;
    line-height: 1.3;
}

.controls__heading--back {
    margin-top: 7px;
}

.control {
    display: grid;
    gap: 6px;
}

.control--name {
    grid-template-columns: 52px minmax(0, 1fr);
    align-items: center;
    column-gap: 10px;
}

#js-name-input,
#js-back-description-input {
    font-size: 13px;
}

.control__label {
    font-size: 12px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.72);
}

.control input[type="text"],
.control textarea {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border-radius: 6px;
    min-height: 34px;
    padding: 7px 9px;
    font: inherit;
}

.control textarea {
    min-height: 92px;
    resize: vertical;
    line-height: 1.55;
}

.control input[type="text"]:focus,
.control textarea:focus,
.control input[type="color"]:focus {
    outline: 2px solid rgba(247, 223, 69, 0.55);
    outline-offset: 2px;
}

.control--file {
    grid-template-columns: auto 1fr;
    align-items: center;
}

.control--file .control__label {
    grid-column: 1 / -1;
}

.control--file input[type="file"] {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.control__file-button {
    display: inline-grid;
    place-items: center;
    min-height: 32px;
    padding: 0 10px;
    border: 1px solid rgba(255, 255, 255, 0.20);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.10);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
}

.control--file:focus-within .control__file-button {
    outline: 2px solid rgba(247, 223, 69, 0.55);
    outline-offset: 2px;
}

.control__file-name {
    min-width: 0;
    overflow: hidden;
    color: rgba(255, 255, 255, 0.58);
    font-size: 10px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.control--file.control--disabled {
    pointer-events: none;
}

.control--toggle {
    grid-template-columns: 1fr auto;
    align-items: center;
}

.control--toggle input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.control__switch {
    width: 48px;
    height: 26px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.18);
    position: relative;
}

.control__switch::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #e9e9e0;
    transition: transform 0.16s ease, background-color 0.16s ease;
}

.control--toggle input:checked+.control__switch {
    background: rgba(247, 223, 69, 0.36);
}

.control--toggle input:checked+.control__switch::after {
    transform: translateX(22px);
    background: rgb(247, 223, 69);
}

.control--color {
    grid-template-columns: 1fr auto;
    align-items: center;
}

.control input[type="color"] {
    width: 44px;
    height: 34px;
    padding: 2px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.08);
}

.control--disabled {
    opacity: 0.46;
}

.control--disabled input {
    cursor: not-allowed;
}

.control__button {
    box-sizing: border-box;
    min-height: 34px;
    border: 1px solid rgba(255, 255, 255, 0.20);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.10);
    color: #f7f7ef;
    font: inherit;
    font-weight: 700;
    letter-spacing: 0;
    cursor: pointer;
    transition: background-color 0.16s ease, border-color 0.16s ease;
}

.control__button:not(:disabled):hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.30);
}

.control__button:not(:disabled):active {
    transform: none;
}

.control__button:focus {
    outline: none;
}

.control__button:focus-visible {
    border-color: rgba(247, 223, 69, 0.72);
    background: rgba(247, 223, 69, 0.14);
}

.control__button:disabled {
    opacity: 0.46;
    cursor: not-allowed;
}

.finalize-button {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    margin-top: 4px;
    padding: 8px 10px;
    border: 1px solid rgba(247, 223, 69, 0.78);
    border-radius: 8px;
    background: rgb(247, 223, 69);
    box-shadow: 0 10px 24px rgba(247, 223, 69, 0.18);
    color: #171103;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: filter 0.16s ease;
}

.finalize-button__copy {
    display: inline-flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    min-width: 0;
    white-space: nowrap;
}

.settings-panel__actions {
    display: grid;
    grid-template-columns: minmax(0, 30fr) minmax(0, 70fr);
    align-items: stretch;
    gap: 8px;
    margin-top: 4px;
}

.settings-panel__actions .finalize-button {
    width: 100%;
    margin-top: 0;
}

.settings-back-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    min-width: 0;
    min-height: 48px;
    padding: 8px 10px;
    font-size: 14px;
    white-space: nowrap;
}

.settings-back-button::before,
.completion__back::before {
    content: "";
    flex: 0 0 auto;
    width: 1.56em;
    height: 1em;
    background-color: currentColor;
    -webkit-mask: url("../img/icon_arrow-back.webp") center / contain no-repeat;
    mask: url("../img/icon_arrow-back.webp") center / contain no-repeat;
}

.finalize-button__label {
    font-size: 16px;
    letter-spacing: 0.25em;
    text-indent: 0.25em;
    line-height: 1.2;
}

.finalize-button__note {
    font-size: 12px;
    line-height: 1.2;
    opacity: 0.72;
}

.finalize-button__loading {
    position: absolute;
    right: 14px;
    width: 12px;
    height: 12px;
    border-width: 2px;
}

.finalize-button.is-processing {
    cursor: wait;
}

.finalize-button.is-processing .finalize-button__loading {
    animation: card-loading-spin 0.72s linear infinite;
}

.finalize-button.is-processing:disabled {
    filter: none;
    opacity: 0.82;
    cursor: wait;
}

.finalize-note {
    margin: 0;
    color: rgba(255, 255, 255, 0.58);
    font-size: 11px;
    line-height: 1.6;
    text-align: center;
}

.finalize-note__mobile-break {
    display: none;
}

.finalize-button:hover {
    filter: brightness(1.08);
}

.finalize-button:active {
    transform: none;
}

.finalize-button:focus-visible {
    outline: 3px solid rgba(247, 223, 69, 0.34);
    outline-offset: 3px;
}

.control__button--status-toggle {
    position: absolute;
    top: 334px;
    z-index: 20;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 34px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 11px;
    white-space: nowrap;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.38);
}

.control__button--gyro {
    left: 0;
}

.control__button--toggle {
    right: 0;
}

.front-secondary-settings {
    position: relative;
    z-index: 20;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    width: 320px;
    margin: 12px 0 0;
    padding: 0;
}

.front-secondary-settings .seal-preset-action {
    justify-content: space-between;
    width: 100%;
    min-width: 0;
    border-radius: 7px;
    box-shadow: none;
}

.front-secondary-settings .status-toggle__label {
    min-width: 0;
    font-weight: 700;
    white-space: nowrap;
}

.name-secondary-settings {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    width: 100%;
}

.name-secondary-settings .seal-preset-action {
    justify-content: space-between;
    width: 100%;
    min-width: 0;
    border-radius: 7px;
    box-shadow: none;
}

.name-secondary-settings .status-toggle__label {
    min-width: 0;
    font-weight: 700;
    white-space: nowrap;
}

.name-curve-control {
    position: relative;
}

.name-curve-control input[type="checkbox"] {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.name-curve-control:focus-within {
    outline: 2px solid rgba(247, 223, 69, 0.72);
    outline-offset: 2px;
}

.name-curve-control input[type="checkbox"]:checked + .status-toggle__state {
    background: rgb(247, 223, 69);
    color: #171103;
}

.status-toggle__label {
    font-size: 12px;
}

.status-toggle__state {
    font-size: 11px;
}

.status-toggle__state {
    display: inline-grid;
    place-items: center;
    box-sizing: border-box;
    width: 34px;
    min-width: 34px;
    height: 18px;
    padding: 0 4px 1px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.34);
    color: rgba(255, 255, 255, 0.72);
    line-height: 1;
}

.control__button--status-toggle[aria-pressed="true"] .status-toggle__state {
    background: rgb(247, 223, 69);
    color: #171103;
}

.control__button.seal-preset-action {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 34px;
    padding: 0 10px;
    border-radius: 7px;
    font-size: 11px;
    white-space: nowrap;
    box-shadow: none;
}

.prism-color-control {
    position: relative;
}

.prism-color-control input[type="color"] {
    width: 34px;
    height: 18px;
    padding: 0;
    overflow: hidden;
    border: 0;
    border-radius: 999px;
    background: transparent;
    cursor: pointer;
}

.prism-color-control input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.prism-color-control input[type="color"]::-webkit-color-swatch {
    border: 0;
    border-radius: 999px;
}

.prism-color-control input[type="color"]::-moz-color-swatch {
    border: 0;
    border-radius: 999px;
}

.palette-color-control {
    justify-content: space-between;
}

.palette-color-control__swatch {
    box-sizing: border-box;
    width: 34px;
    height: 18px;
    flex: 0 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 999px;
}

.color-palette-dialog {
    box-sizing: border-box;
    width: min(320px, calc(100vw - 40px));
    max-width: none;
    margin: auto;
    padding: 0;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 16px;
    background: #1b1b1b;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.68);
    color: #fff;
    font-family: var(--ui-font-family);
}

.color-palette-dialog::backdrop {
    background: rgba(0, 0, 0, 0.68);
    backdrop-filter: blur(3px);
}

.terms-modal {
    box-sizing: border-box;
    width: min(760px, calc(100vw - 32px));
    max-width: none;
    height: min(760px, calc(100dvh - 40px));
    max-height: none;
    margin: auto;
    padding: 0;
    overflow: hidden;
    border: 1px solid rgba(181, 192, 185, 0.34);
    border-radius: 18px;
    background: #0d100e;
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.78);
    color: #edf1ee;
    font-family: var(--ui-font-family);
}

.terms-modal::backdrop {
    background: rgba(0, 0, 0, 0.76);
    backdrop-filter: blur(4px);
}

.site-modal.is-modal-opening {
    animation: site-modal-open 420ms cubic-bezier(.22, 1, .36, 1) both;
}

.site-modal.is-modal-closing {
    pointer-events: none;
    animation: site-modal-close 260ms ease-out both;
}

.site-modal.is-modal-opening::backdrop {
    animation: site-modal-backdrop-in 320ms ease-out both;
}

.site-modal.is-modal-closing::backdrop {
    animation: site-modal-backdrop-out 260ms ease-out both;
}

@keyframes site-modal-open {
    from {
        opacity: 0;
        transform: translateY(56px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes site-modal-close {
    from {
        opacity: 1;
        transform: translateY(0);
    }

    to {
        opacity: 0;
        transform: translateY(0);
    }
}

@keyframes site-modal-backdrop-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes site-modal-backdrop-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

.terms-modal__surface {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}

.terms-modal__header {
    box-sizing: border-box;
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 58px;
    padding: 11px 14px 11px 20px;
    border-bottom: 1px solid rgba(181, 192, 185, 0.22);
    background: linear-gradient(180deg, rgba(43, 48, 44, 0.98), rgba(20, 23, 21, 0.98));
}

.terms-modal__title {
    margin: 0;
    font-size: 17px;
    line-height: 1.4;
}

.terms-modal__frame {
    display: block;
    flex: 1 1 auto;
    width: 100%;
    min-height: 0;
    border: 0;
    background: #0a0c0b;
}

@media (max-width: 740px) {
    .terms-modal {
        width: calc(100vw - 24px);
        height: calc(100dvh - 32px);
        border-radius: 16px;
    }

    .terms-modal__header {
        min-height: 52px;
        padding: 8px 10px 8px 16px;
    }

    .terms-modal__title {
        font-size: 16px;
    }
}

.color-palette-dialog__content {
    padding: 18px;
}

.color-palette-dialog__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
}

.color-palette-dialog__title {
    margin: 0;
    font-size: 16px;
    line-height: 1.4;
}

.color-palette-dialog__close {
    display: inline-grid;
    place-items: center;
    width: 34px;
    height: 34px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.82);
    font: inherit;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
}

.color-palette-dialog__close:focus-visible,
.color-palette__option:focus-visible {
    outline: 3px solid rgba(247, 223, 69, 0.72);
    outline-offset: 2px;
}

.color-palette {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.color-palette__option {
    position: relative;
    display: grid;
    place-items: center;
    aspect-ratio: 1;
    padding: 6px;
    border: 2px solid transparent;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    cursor: pointer;
}

.color-palette__option > span {
    width: 100%;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.48);
}

.color-palette__option[aria-checked="true"] {
    border-color: #f7df45;
    background: rgba(247, 223, 69, 0.14);
}

.color-palette__option[aria-checked="true"]::after {
    content: "✓";
    position: absolute;
    right: 8px;
    bottom: 7px;
    display: grid;
    place-items: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #111;
    color: #f7df45;
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
}

.prism-color-control.control--disabled {
    opacity: 0.46;
    cursor: not-allowed;
    pointer-events: none;
}

.prism-color-control.control--disabled input[type="color"] {
    cursor: not-allowed;
}

.control__button.image-area-toggle[aria-pressed="true"] .status-toggle__state {
    background: rgb(247, 223, 69);
    color: #171103;
}

.back-stage__actions .seal-preset-action,
.back-stage__actions .back-illustration-toggle {
    position: static;
    top: auto;
    z-index: auto;
    flex: 1 1 0;
    justify-content: space-between;
    min-width: 0;
    border-radius: 7px;
    box-shadow: none;
}

.completion {
    box-sizing: border-box;
    width: 100%;
    padding: 8px 20px 64px;
    margin-bottom: clamp(96px, 12vh, 160px);
    color: #f6f6f0;
}

.completion__back {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    box-sizing: border-box;
    width: 140px;
    max-width: 100%;
    height: 42px;
    min-height: 42px;
    margin: 10px 0 12px max(16px, calc((100% - 680px) / 2));
    padding: 7px 10px;
    border: 1px solid var(--graphite-button-border);
    border-radius: 12px;
    background: var(--graphite-button-surface);
    box-shadow: var(--graphite-button-shadow);
    color: rgba(255, 255, 255, 0.72);
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
}

@media (hover: hover) and (pointer: fine) {
    .completion__back:hover {
        color: #fff;
    }
}

.completion__back:focus-visible {
    outline: 2px solid rgba(220, 228, 223, 0.72);
    outline-offset: 2px;
}

.completion__inner {
    width: min(760px, 100%);
    margin: 0 auto;
    text-align: center;
}

.completion__lead {
    margin: 0 0 16px;
    color: rgba(255, 255, 255, 0.66);
    font-size: 13px;
}

.completed-seal {
    position: relative;
    left: 50%;
    display: block;
    width: 320px;
    aspect-ratio: 1;
    margin: 0 0 0 -160px;
    padding: 0;
    border: 0;
    background: transparent;
    perspective: 1000px;
    cursor: pointer;
}

.completed-seal__inner {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    transition: transform 0.72s cubic-bezier(0.2, 0.76, 0.24, 1);
    will-change: transform;
}

.completed-seal.is-flipped .completed-seal__inner {
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
}

.completed-seal:not(.is-animation-enabled) .completed-seal__inner {
    transition: none;
}

.completed-seal__face {
    position: absolute;
    inset: 0;
    overflow: hidden;
    border: 0;
    background: #222;
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.2),
        0 30px 60px rgba(0, 0, 0, 0.58);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.completed-seal__face--back {
    overflow: visible;
    background: transparent;
    box-shadow: none;
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
}

.completed-seal__face--front {
    overflow: visible;
    border: 0;
    background: transparent;
    box-shadow: none;
}

.completed-seal__face > img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.completed-seal__live-front {
    display: block;
    width: 100%;
    height: 100%;
}

.completed-seal__live-back {
    display: block;
    width: 100%;
    height: 100%;
}

.completed-seal__live-back .back-card {
    pointer-events: none;
}

.completed-seal__live-back .back-card__illustration-placeholder,
.completed-seal__live-back .back-card__loading-copy {
    display: none;
}

.completion .card__image {
    pointer-events: none;
}

@media (hover: hover) and (pointer: fine) {
    .completion .card__image.has-upload:hover {
        background-color: transparent;
    }

    .completion .card__image:hover::before,
    .completion .card.is-hologram .card__image:hover::before {
        display: none;
        box-shadow: none;
    }
}

.completion .card__image:not(.has-upload)::before,
.completion .card__image:not(.has-upload)::after,
.completion .card__image:not(.has-upload) .card__upload-copy,
.completion .card__image:not(.has-upload) .card__loading-copy {
    display: none;
}

.completion__live-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
    gap: 8px;
    width: min(320px, calc(100vw - 40px));
    min-height: 34px;
    margin: 14px auto 0;
}

.completion__live-controls .control__button--status-toggle {
    position: static;
    top: auto;
    right: auto;
    left: auto;
    display: flex;
    justify-content: space-between;
    width: 100%;
    min-height: 34px;
    padding: 0 9px;
    border-radius: 7px;
    box-shadow: none;
    font-size: 10px;
}

.completion__live-controls .status-toggle__label {
    min-width: 0;
    font-weight: 700;
    white-space: nowrap;
}

.completed-seal:focus-visible {
    outline: 3px solid rgb(247, 223, 69);
    outline-offset: 6px;
}

.completion__panel {
    box-sizing: border-box;
    width: min(680px, calc(100% - 32px));
    margin: 34px auto 0;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(28, 28, 28, 0.86);
    box-shadow: 0 18px 42px rgba(0, 0, 0, 0.36);
    text-align: left;
}

.completion__section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.completion__panel > .completion__section:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
}

.completion__section-title {
    margin: 0 0 10px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 14px;
}

.completion__button-row,
.completion__url-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.completion-button {
    min-height: 42px;
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 7px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
}

.completion-button:hover:not(:disabled) {
    border-color: rgba(255, 255, 255, 0.42);
    background: rgba(255, 255, 255, 0.16);
}

.completion-button:focus-visible {
    outline: 2px solid rgb(247, 223, 69);
    outline-offset: 2px;
}

.completion-button:disabled {
    opacity: 0.48;
    cursor: not-allowed;
}

.completion-button--primary,
.completion-button--share {
    width: 100%;
}

.completion-button--primary,
.completion-button--share {
    border-color: rgb(247, 223, 69);
    background: rgb(247, 223, 69);
    color: #171103;
}

.completion__note,
.completion__expiry,
.completion__status {
    margin: 7px 0 0;
    color: rgba(255, 255, 255, 0.58);
    font-size: 11px;
    line-height: 1.6;
}

.completion__publish-notice {
    margin: 0 0 12px;
    color: rgba(255, 255, 255, 0.68);
    font-size: 12px;
    line-height: 1.75;
}

.completion__turnstile {
    display: grid;
    min-height: 65px;
    margin: 0 0 12px;
    place-items: center;
}

.publish-consent {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 9px;
    margin: 0 0 12px;
    padding: 11px 12px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 7px;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.78);
    font-size: 12px;
    line-height: 1.65;
    cursor: pointer;
}

.publish-consent:focus-within {
    border-color: rgba(247, 223, 69, 0.7);
    box-shadow: 0 0 0 2px rgba(247, 223, 69, 0.12);
}

.publish-consent input {
    width: 17px;
    height: 17px;
    margin: 1px 0 0;
    accent-color: #f7df45;
}

.publish-consent:has(input:disabled) {
    cursor: default;
    opacity: 0.62;
}

.completion__url {
    margin-top: 12px;
}

.completion__url-label {
    display: block;
    margin-bottom: 5px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 11px;
    font-weight: 700;
}

.completion__url-row {
    grid-template-columns: minmax(0, 1fr);
}

.completion__url-row input {
    box-sizing: border-box;
    min-width: 0;
    min-height: 42px;
    padding: 8px 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 7px;
    background: rgba(255, 255, 255, 0.07);
    color: #fff;
    font: inherit;
    font-size: 12px;
}

.completion__status:empty {
    display: none;
}

.completion__status.is-error {
    color: #ff9f92;
}

.site-footer {
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px 28px;
    align-self: stretch;
    width: 100%;
    margin-top: auto;
    padding: 22px 20px calc(22px + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.46);
    font-size: 12px;
    line-height: 1.5;
}

.site-footer__links {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 18px;
}

.site-footer__copyright {
    margin: 0 0 0 auto;
    text-align: right;
}

/* Shared settings surface ------------------------------------------------- */
.settings-layer {
    display: contents;
}

.settings-rail-button,
.settings-sheet-trigger,
.settings-fab {
    display: none;
    font-family: var(--ui-font-family);
}

.settings-sheet-trigger {
    animation: settings-trigger-landing 720ms var(--settings-slide-easing) 120ms backwards;
}

@keyframes settings-trigger-landing {
    from {
        opacity: 0;
        transform: translate(
            -50%,
            calc(var(--settings-sheet-rest-y) + 130%)
        );
    }

    to {
        opacity: 1;
        transform: translate(-50%, var(--settings-sheet-rest-y));
    }
}

.settings-trigger-bar {
    display: block;
    width: 44px;
    height: 4px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.48);
}

.settings-trigger-label {
    letter-spacing: 0.25em;
    text-indent: 0.25em;
}

.settings-backdrop {
    position: fixed;
    inset: 0;
    z-index: 500;
    background: rgba(0, 0, 0, 0.54);
    opacity: 0;
    pointer-events: none;
    transition: opacity 240ms ease;
}

.settings-panel {
    --settings-drag-y: 0px;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 510;
    box-sizing: border-box;
    width: 360px;
    color: #f2f2ee;
    background: #181818;
    border-left: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: -24px 0 54px rgba(0, 0, 0, 0.48);
    opacity: 0;
    transform: translateX(100%);
    visibility: hidden;
    transition:
        transform var(--settings-slide-duration) var(--settings-slide-easing),
        opacity 260ms ease-out,
        visibility 0s linear var(--settings-slide-duration);
    will-change: transform;
}

body.settings-opening,
body.settings-open {
    overflow: hidden;
}

body.settings-opening .settings-panel,
body.settings-open .settings-panel {
    visibility: visible;
    transition-delay: 0s;
}

/* クリック後はランディング用 transform を解除し、パネルと同じ遷移に統一する。 */
body.settings-opening .settings-sheet-trigger,
body.settings-open .settings-sheet-trigger,
body.settings-trigger-landed .settings-sheet-trigger {
    animation: none;
}

body.settings-opening .settings-sheet-trigger,
body.settings-opening .settings-panel {
    transition: none !important;
}

body.settings-open .settings-backdrop {
    opacity: 1;
    pointer-events: auto;
}

body.settings-open .settings-panel {
    opacity: 1;
    transform: translateX(0);
}

.settings-panel__body {
    box-sizing: border-box;
    height: 100%;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 14px 14px calc(24px + env(safe-area-inset-bottom));
}

.settings-accordion {
    margin: 0 0 10px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.035);
    overflow: hidden;
}

.settings-accordion > summary {
    position: relative;
    padding: 14px 42px 14px 14px;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
}

.settings-accordion > summary::-webkit-details-marker {
    display: none;
}

.settings-accordion__character-count {
    margin-left: 6px;
    color: rgba(255, 255, 255, 0.62);
    font-size: 11px;
    font-weight: 700;
}

.settings-accordion > summary::before,
.settings-accordion > summary::after {
    content: "";
    position: absolute;
    top: 50%;
    right: 19px;
    width: 14px;
    height: 2px;
    transform: translateY(-50%);
    color: #f7df45;
    background: currentColor;
    transform-origin: center;
}

.settings-accordion > summary::before {
    animation: accordion-icon-close 0.32s cubic-bezier(.22, 1, .36, 1) both;
    will-change: transform;
}

.settings-accordion[open] > summary::before {
    animation-name: accordion-icon-open;
}

@keyframes accordion-icon-open {
    from {
        transform: translateY(-50%) rotate(90deg);
    }

    to {
        transform: translateY(-50%) rotate(180deg);
    }
}

@keyframes accordion-icon-close {
    from {
        transform: translateY(-50%) rotate(180deg);
    }

    to {
        transform: translateY(-50%) rotate(90deg);
    }
}

.settings-accordion__content {
    padding: 4px 12px 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.seal-type-section {
    grid-column: 1 / -1;
    grid-row: 2;
    box-sizing: border-box;
    justify-self: center;
    width: min(724px, 100vw);
    margin: -12px 0 0;
    overflow: visible;
}

.seal-type-section > .seal-presets {
    width: auto;
    max-width: none;
    overflow: visible;
}

.seal-type-section .seal-presets__track {
    width: 100%;
    max-width: none;
    justify-content: flex-start;
    overflow-x: visible;
    padding: 4px 0 12px;
    cursor: default;
    touch-action: auto;
}

.controls__group {
    display: grid;
    gap: 12px;
    padding-top: 12px;
}

.settings-panel .seal-presets {
    justify-self: stretch;
    width: auto;
    min-width: 0;
    max-width: none;
    overflow: hidden;
}

.settings-panel .seal-presets__track {
    width: 100%;
    min-width: 0;
    justify-content: flex-start;
    margin: 0 -12px;
    padding: 12px;
}

.settings-panel .seal-preset {
    flex-basis: 88px;
}

.settings-panel .seal-preset__preview {
    width: 74px;
    height: 74px;
}

.settings-panel .seal-preset__label {
    font-size: 10.5px;
}

.settings-panel .control__button--status-toggle {
    position: static;
    top: auto;
    right: auto;
    left: auto;
    display: flex;
    justify-content: space-between;
    width: 100%;
    border-radius: 7px;
    box-shadow: none;
}

.settings-panel .finalize-note {
    margin-top: 2px;
}

.settings-panel :is(button, input, textarea, summary):focus-visible,
.settings-rail-button:focus-visible,
.settings-sheet-trigger:focus-visible,
.settings-fab:focus-visible {
    outline: 3px solid rgba(247, 223, 69, 0.78);
    outline-offset: 2px;
}

@media (min-width: 741px) and (min-height: 500px) {
    body {
        --settings-sheet-height: min(480px, calc(100dvh - 76px));
        padding-bottom: 0;
    }

    .settings-sheet-trigger {
        position: fixed;
        right: auto;
        bottom: 0;
        left: 50%;
        z-index: 520;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 9px;
        width: 250px;
        min-height: 70px;
        padding: 12px 18px max(12px, env(safe-area-inset-bottom));
        border: 1px solid rgba(255, 255, 255, 0.18);
        border-bottom: 0;
        border-radius: 14px 14px 0 0;
        background: rgba(18, 18, 18, 0.96);
        box-shadow: 0 -8px 28px rgba(0, 0, 0, 0.34);
        color: #fff;
        font-size: 16px;
        font-weight: 700;
        cursor: pointer;
        --settings-drag-y: 0px;
        transform: translate(-50%, var(--settings-sheet-rest-y));
        transition:
            transform var(--settings-slide-duration) var(--settings-slide-easing);
        will-change: transform;
    }

    body.settings-open .settings-sheet-trigger {
        transform: translate(
            -50%,
            calc(var(--settings-drag-y) - var(--settings-sheet-height))
        );
    }

    .settings-panel {
        top: auto;
        right: auto;
        bottom: 0;
        left: 50%;
        width: min(680px, 100%);
        height: var(--settings-sheet-height);
        border-top: 1px solid rgba(255, 255, 255, 0.18);
        border-left: 0;
        border-radius: 18px 18px 0 0;
        box-shadow: 0 -24px 54px rgba(0, 0, 0, 0.52);
        opacity: 0;
        transform: translate(
            -50%,
            calc(var(--settings-sheet-height) + var(--settings-sheet-rest-y))
        );
        transition:
            transform var(--settings-slide-duration) var(--settings-slide-easing),
            opacity 260ms ease-out,
            visibility 0s linear var(--settings-slide-duration);
    }

    body.settings-open .settings-panel {
        transform: translate(-50%, var(--settings-drag-y));
    }

}

@media (max-width: 740px), (max-height: 499px) {
    body {
        --settings-sheet-height: min(68dvh, 620px);
        overflow: auto;
        overflow-x: hidden;
        height: auto;
        min-height: 100vh;
        min-height: 100dvh;
        padding: 0;
        box-sizing: border-box;
    }

    .app {
        grid-template-columns: 100%;
        align-self: stretch;
        width: auto;
        justify-items: center;
        column-gap: 0;
        row-gap: 16px;
        margin-top: 0;
    }

    .site-header {
        width: auto;
        padding: 14px 20px;
    }

    .site-header__title {
        gap: 7px;
    }

    .site-header__logo {
        height: 24px;
    }

    .site-header__subtitle {
        font-size: 10px;
    }

    .mobile-tabs {
        position: sticky;
        top: 0;
        z-index: 100;
        grid-column: 1;
        grid-row: 1;
        justify-self: center;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        box-sizing: border-box;
        width: 100%;
        max-width: 100%;
        margin-left: 0;
        padding: 4px 0 0;
        backdrop-filter: blur(12px);
    }

    .mobile-tab {
        min-height: 44px;
        padding: 0 12px;
        border: 0;
        border-bottom: 2px solid rgba(255, 255, 255, 0.14);
        background: transparent;
        color: rgba(255, 255, 255, 0.54);
        font: inherit;
        font-size: 14px;
        font-weight: 700;
        letter-spacing: 0.25em;
        text-indent: 0.25em;
        cursor: pointer;
    }

    .mobile-tab.is-active {
        border-bottom-color: rgb(247, 223, 69);
        color: #fff;
    }

    .mobile-tab:focus-visible {
        outline: 2px solid rgba(247, 223, 69, 0.72);
        outline-offset: -3px;
    }

    .card-stage {
        grid-column: 1;
        grid-row: 2;
    }

    .back-stage {
        grid-column: 1;
        grid-row: 2;
    }

    .seal-type-section {
        grid-row: 3;
        width: min(617px, 100vw);
        margin-top: 0;
    }

    .seal-type-section .seal-presets__track {
        gap: 7px;
    }

    .seal-type-section .seal-preset {
        flex-basis: 97px;
        gap: 5px;
        padding: 5px;
    }

    .seal-type-section .seal-preset__preview {
        width: 85px;
        height: 85px;
    }

    .seal-type-section .seal-preset__label {
        min-height: 24px;
        font-size: 10.2px;
    }

    .settings-sheet-trigger {
        position: fixed;
        right: auto;
        bottom: 0;
        left: 50%;
        z-index: 520;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 4px;
        width: 120px;
        min-height: 54px;
        padding: 6px 18px max(6px, env(safe-area-inset-bottom));
        border: 1px solid rgba(255, 255, 255, 0.18);
        border-bottom: 0;
        border-radius: 14px 14px 0 0;
        background: rgba(18, 18, 18, 0.96);
        box-shadow: 0 -8px 28px rgba(0, 0, 0, 0.34);
        color: #fff;
        font-size: 14px;
        font-weight: 700;
        cursor: pointer;
        --settings-drag-y: 0px;
        transform: translate(-50%, var(--settings-sheet-rest-y));
        transition:
            transform var(--settings-slide-duration) var(--settings-slide-easing);
        will-change: transform;
    }

    .is-iphone-safari body {
        --settings-sheet-rest-y: -20px;
    }

    .is-iphone-safari .settings-sheet-trigger {
        bottom: -20px;
    }

    body.settings-open .settings-sheet-trigger {
        transform: translate(
            -50%,
            calc(var(--settings-drag-y) - var(--settings-sheet-height))
        );
    }

    .settings-panel {
        top: auto;
        right: auto;
        bottom: 0;
        left: 50%;
        width: 100%;
        height: var(--settings-sheet-height);
        border-top: 1px solid rgba(255, 255, 255, 0.18);
        border-left: 0;
        border-radius: 18px 18px 0 0;
        box-shadow: 0 -24px 54px rgba(0, 0, 0, 0.52);
        opacity: 0;
        transform: translate(
            -50%,
            calc(var(--settings-sheet-height) + var(--settings-sheet-rest-y))
        );
    }

    .is-iphone-safari .settings-panel {
        bottom: -20px;
    }

    .is-iphone-safari body:not(.settings-opening):not(.settings-open) .settings-panel {
        visibility: visible;
        opacity: 1;
        pointer-events: none;
        transform: translate(
            -50%,
            calc(var(--settings-sheet-height) + var(--settings-sheet-rest-y))
        );
        box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.34);
        transition-delay: 0s;
    }

    .is-iphone-safari body:not(.settings-opening):not(.settings-open) .settings-panel__body {
        visibility: hidden;
    }

    .is-iphone-safari body:is(.settings-opening, .settings-open) .settings-panel {
        pointer-events: auto;
    }

    body.settings-open .settings-panel {
        transform: translate(-50%, var(--settings-drag-y));
    }

    .completion {
        padding: 8px 0 48px;
    }

    .completion__back {
        margin-bottom: 12px;
        padding-right: 10px;
        padding-left: 10px;
    }

    .completion__panel {
        padding: 16px;
    }

    .site-footer {
        flex-wrap: nowrap;
        gap: 12px;
        width: 100%;
        padding-right: 16px;
        padding-left: 16px;
    }

    .site-footer__links,
    .site-footer__copyright {
        white-space: nowrap;
    }

    .app:not([data-active-tab="back"]) .back-stage,
    .app[data-active-tab="back"] .card-stage {
        display: none;
    }

    .app.is-tab-flipping .card-stage,
    .app.is-tab-flipping .back-stage {
        display: block;
        grid-column: 1;
        grid-row: 2;
        pointer-events: none;
    }

    .app.is-tab-flipping .seal-landing {
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
        transform-style: preserve-3d;
    }

    .app.is-flipping-to-back .card-stage .seal-landing {
        animation: editor-tab-front-out 0.72s cubic-bezier(0.2, 0.76, 0.24, 1) both;
    }

    .app.is-flipping-to-back .back-stage .seal-landing {
        animation: editor-tab-back-in 0.72s cubic-bezier(0.2, 0.76, 0.24, 1) both;
    }

    .app.is-flipping-to-front .back-stage .seal-landing {
        animation: editor-tab-back-out 0.72s cubic-bezier(0.2, 0.76, 0.24, 1) both;
    }

    .app.is-flipping-to-front .card-stage .seal-landing {
        animation: editor-tab-front-in 0.72s cubic-bezier(0.2, 0.76, 0.24, 1) both;
    }

    .app.is-tab-flipping .front-secondary-settings,
    .app.is-tab-flipping .back-stage__actions {
        visibility: hidden;
    }

    .app.is-tab-actions-entering[data-active-tab="front"] .front-secondary-settings,
    .app.is-tab-actions-entering[data-active-tab="back"] .back-stage__actions {
        animation: seal-actions-fade-in 280ms ease-out both;
    }
}

@media (max-width: 740px) {
    button,
    [role="button"],
    label,
    summary {
        touch-action: manipulation;
    }

    .finalize-note__mobile-break {
        display: block;
    }

    .finalize-button__label {
        font-size: 14px;
    }

    .finalize-button__copy {
        gap: 6px;
    }

    .finalize-button__note {
        font-size: 11px;
    }

    .settings-panel__actions {
        grid-template-columns: minmax(0, 25fr) minmax(0, 75fr);
    }

    .settings-back-button {
        gap: 4px;
        padding-right: 4px;
        padding-left: 4px;
    }

    .settings-back-button::before {
        width: 1.3em;
    }

    .finalize-button__loading {
        right: 10px;
        width: 10px;
        height: 10px;
    }
}

@media (max-width: 616px) {
    .seal-type-section {
        width: 100vw;
    }

    html.seal-landing-pending .seal-type-section .seal-presets__track,
    html.seal-landing-ready .seal-type-section .seal-presets__track {
        overflow-x: hidden;
        scroll-behavior: auto;
        scroll-snap-type: none;
    }

    .seal-type-section .seal-presets__track {
        overflow-x: auto;
        padding-right: max(16px, env(safe-area-inset-right));
        padding-left: max(16px, env(safe-area-inset-left));
        scroll-padding-inline: 16px;
        cursor: grab;
        touch-action: pan-x pan-y;
    }
}

@media (max-width: 360px) {
    body {
        padding-right: 0;
        padding-left: 0;
    }

    .settings-panel__body {
        padding-right: 9px;
        padding-left: 9px;
    }

    .settings-accordion__content {
        padding-right: 9px;
        padding-left: 9px;
    }

    .controls__group {
        gap: 9px;
    }
}

@media (max-height: 499px) {
    body {
        --settings-sheet-height: min(58dvh, 300px);
    }

    .site-header {
        padding-top: 8px;
        padding-bottom: 8px;
    }

    .mobile-tabs {
        position: relative;
        padding-top: 4px;
        padding-bottom: 0;
    }

    .settings-panel {
        height: var(--settings-sheet-height);
    }

    .settings-panel__body {
        height: 100%;
        padding-top: 8px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .settings-sheet-trigger {
        animation-duration: 720ms !important;
        animation-iteration-count: 1 !important;
    }

    .site-modal.is-modal-opening {
        animation-duration: 420ms !important;
    }

    .site-modal.is-modal-closing {
        animation-duration: 260ms !important;
    }

    .seal-landing {
        animation-duration: 620ms !important;
        animation-iteration-count: 1 !important;
    }

    .front-secondary-settings,
    .back-stage__actions {
        animation-duration: 280ms !important;
        animation-iteration-count: 1 !important;
    }

    .seal-type-section .seal-preset {
        animation-duration: 460ms !important;
        animation-iteration-count: 1 !important;
    }

    .app.is-tab-flipping .seal-landing {
        animation-duration: 0.72s !important;
        animation-iteration-count: 1 !important;
    }

    .app.is-tab-actions-entering .front-secondary-settings,
    .app.is-tab-actions-entering .back-stage__actions {
        animation-duration: 280ms !important;
        animation-iteration-count: 1 !important;
    }

    .card__image.is-processing .card__loading-icon,
    .back-card__illustration.is-processing .card__loading-icon,
    .finalize-button.is-processing .finalize-button__loading {
        animation: card-loading-spin 0.72s linear infinite !important;
    }

    .settings-accordion > summary::before {
        animation-duration: 0.32s !important;
    }

    /* 設定パネルは操作結果を伝えるため、ボタンと一体のスライドを維持する。 */
    .settings-rail-button,
    .settings-sheet-trigger {
        transition:
            transform var(--settings-slide-duration) var(--settings-slide-easing) !important;
    }

    .settings-panel {
        transition:
            transform var(--settings-slide-duration) var(--settings-slide-easing),
            opacity 260ms ease-out,
            visibility 0s linear var(--settings-slide-duration) !important;
    }

    .completed-seal.is-animation-enabled .completed-seal__inner {
        transition: transform 0.72s cubic-bezier(0.2, 0.76, 0.24, 1) !important;
    }

    body.settings-opening .settings-panel,
    body.settings-open .settings-panel {
        transition-delay: 0s, 0s, 0s !important;
    }

    .settings-backdrop {
        transition: opacity 240ms ease !important;
    }
}

/* Exhibition pedestal button system ------------------------------------- */
:root {
    --pedestal-amber: #ff9f24;
    --pedestal-amber-bright: #ffc666;
    --pedestal-amber-pale: #fff3dc;
    --pedestal-button-surface:
        linear-gradient(145deg, rgba(255, 255, 255, 0.075) 0%, transparent 34%),
        radial-gradient(circle at 50% -20%, rgba(255, 159, 36, 0.08), transparent 58%),
        linear-gradient(180deg, #1c1a17 0%, #090807 48%, #010101 100%);
    --pedestal-button-border: rgba(255, 157, 45, 0.56);
    --pedestal-button-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.12),
        inset 0 -2px 0 rgba(0, 0, 0, 0.92),
        inset 0 -5px 9px rgba(0, 0, 0, 0.34),
        0 1px 0 rgba(255, 171, 58, 0.14),
        0 4px 0 #020100,
        0 9px 18px rgba(0, 0, 0, 0.48),
        0 0 11px rgba(255, 116, 0, 0.08);
}

.control__file-button,
:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
) {
    border-color: var(--pedestal-button-border);
    background: var(--pedestal-button-surface);
    box-shadow: var(--pedestal-button-shadow);
    color: var(--pedestal-amber-pale);
    text-shadow: 0 0 10px rgba(255, 145, 26, 0.22);
}

:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
):not(:disabled) {
    transition:
        background 180ms ease,
        border-color 180ms ease,
        box-shadow 180ms ease,
        color 180ms ease,
        filter 180ms ease;
}

@media (hover: hover) and (pointer: fine) {
    .control--file:hover .control__file-button,
    :is(
        .control__button,
        .finalize-button,
        .seal-preset,
        .completion-button,
        .color-palette-dialog__close,
        .color-palette__option
    ):not(:disabled):hover {
        border-color: rgba(255, 191, 91, 0.92);
        background:
            linear-gradient(145deg, rgba(255, 255, 255, 0.11) 0%, transparent 36%),
            radial-gradient(circle at 50% -20%, rgba(255, 175, 65, 0.14), transparent 62%),
            linear-gradient(180deg, #29251f 0%, #0c0a08 50%, #020202 100%);
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.17),
            inset 0 -2px 0 rgba(0, 0, 0, 0.94),
            inset 0 -5px 9px rgba(0, 0, 0, 0.30),
            0 1px 0 rgba(255, 194, 103, 0.18),
            0 5px 0 #020100,
            0 11px 22px rgba(0, 0, 0, 0.52),
            0 0 18px rgba(255, 125, 10, 0.20);
        color: #fff3dc;
        filter: none;
    }
}

:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
):not(:disabled):active {
    box-shadow:
        inset 0 3px 8px rgba(0, 0, 0, 0.86),
        inset 0 -1px 0 rgba(255, 187, 79, 0.16),
        0 1px 0 #020100,
        0 4px 10px rgba(0, 0, 0, 0.46),
        0 0 10px rgba(255, 120, 0, 0.12);
    transform: none;
}

:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
):focus-visible,
.control--file:focus-within .control__file-button {
    border-color: var(--pedestal-amber-bright);
    outline: 2px solid rgba(255, 169, 55, 0.76);
    outline-offset: 3px;
    box-shadow:
        var(--pedestal-button-shadow),
        0 0 0 4px rgba(255, 132, 10, 0.14),
        0 0 24px rgba(255, 120, 0, 0.24);
}

:is(.finalize-button, .completion-button--primary, .completion-button--share) {
    border-color: rgba(255, 192, 91, 0.92);
    background:
        linear-gradient(112deg, transparent 20%, rgba(255, 211, 137, 0.11) 45%, transparent 70%),
        linear-gradient(145deg, rgba(255, 255, 255, 0.085) 0%, transparent 34%),
        radial-gradient(circle at 50% -25%, rgba(255, 151, 30, 0.14), transparent 58%),
        linear-gradient(180deg, #211e19 0%, #0a0806 48%, #010101 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.16),
        inset 0 -2px 0 rgba(0, 0, 0, 0.94),
        inset 0 -6px 10px rgba(0, 0, 0, 0.34),
        0 1px 0 rgba(255, 193, 92, 0.22),
        0 5px 0 #030100,
        0 11px 24px rgba(0, 0, 0, 0.52),
        0 0 23px rgba(255, 117, 0, 0.25);
    color: #fff3dc;
    text-shadow:
        0 1px 0 #000,
        0 0 12px rgba(255, 145, 25, 0.32);
}

@media (hover: hover) and (pointer: fine) {
    :is(.finalize-button, .completion-button--primary, .completion-button--share):not(:disabled):hover {
        border-color: #ffd99d;
        background:
            linear-gradient(112deg, transparent 16%, rgba(255, 225, 169, 0.17) 45%, transparent 73%),
            linear-gradient(145deg, rgba(255, 255, 255, 0.12) 0%, transparent 36%),
            radial-gradient(circle at 50% -20%, rgba(255, 171, 53, 0.20), transparent 62%),
            linear-gradient(180deg, #2a261f 0%, #0d0a07 50%, #020202 100%);
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.20),
            inset 0 -2px 0 rgba(0, 0, 0, 0.94),
            inset 0 -6px 10px rgba(0, 0, 0, 0.30),
            0 1px 0 rgba(255, 208, 130, 0.26),
            0 6px 0 #030100,
            0 13px 27px rgba(0, 0, 0, 0.56),
            0 0 30px rgba(255, 128, 0, 0.36);
        color: #fff3dc;
    }
}

.seal-preset.is-active,
.color-palette__option[aria-checked="true"] {
    border-color: var(--pedestal-amber-bright);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.095) 0%, transparent 35%),
        radial-gradient(circle at 50% -20%, rgba(255, 185, 75, 0.16), transparent 62%),
        linear-gradient(180deg, #242019 0%, #0b0906 48%, #010101 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.16),
        inset 0 -2px 0 rgba(0, 0, 0, 0.94),
        inset 0 -5px 9px rgba(0, 0, 0, 0.30),
        0 0 0 1px rgba(255, 150, 31, 0.22),
        0 4px 0 #020100,
        0 10px 21px rgba(0, 0, 0, 0.50),
        0 0 20px rgba(255, 116, 0, 0.25);
    color: #fff4df;
}

.seal-preset.is-active {
    background: var(--pedestal-button-surface);
    box-shadow:
        var(--pedestal-button-shadow),
        0 0 0 1px rgba(255, 166, 47, 0.16),
        0 0 17px rgba(255, 116, 0, 0.20);
    color: var(--pedestal-amber-pale);
}

.status-toggle__state {
    border: 1px solid rgba(255, 158, 43, 0.32);
    background: rgba(13, 5, 1, 0.72);
    color: rgba(255, 225, 178, 0.78);
}

.control__button--status-toggle[aria-pressed="true"] .status-toggle__state,
.control__button.image-area-toggle[aria-pressed="true"] .status-toggle__state,
.name-curve-control input[type="checkbox"]:checked + .status-toggle__state {
    border-color: #ffd38a;
    background: linear-gradient(180deg, #ffc96d, #e87908);
    box-shadow: 0 0 12px rgba(255, 127, 0, 0.32);
    color: #210b00;
}

.color-palette__option > span {
    border-color: rgba(255, 195, 105, 0.30);
    box-shadow:
        inset 0 1px rgba(255, 255, 255, 0.52),
        0 0 9px rgba(255, 126, 0, 0.12);
}

.color-palette__option[aria-checked="true"]::after {
    border: 1px solid rgba(255, 193, 96, 0.72);
    background: #160800;
    box-shadow: 0 0 10px rgba(255, 125, 0, 0.34);
    color: var(--pedestal-amber-bright);
}

:is(.settings-rail-button, .settings-sheet-trigger, .settings-fab) {
    border-color: var(--pedestal-button-border);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.075) 0%, transparent 34%),
        radial-gradient(circle at 50% -20%, rgba(255, 151, 34, 0.09), transparent 60%),
        linear-gradient(180deg, #1b1916 0%, #080706 50%, #010101 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.12),
        inset 0 -3px 7px rgba(0, 0, 0, 0.42),
        0 1px 0 rgba(255, 172, 59, 0.14),
        0 5px 0 #020100,
        0 11px 27px rgba(0, 0, 0, 0.50),
        0 0 18px rgba(255, 112, 0, 0.13);
    color: var(--pedestal-amber-pale);
    text-shadow: 0 0 12px rgba(255, 143, 24, 0.30);
}

.settings-trigger-bar {
    background: linear-gradient(90deg, #d86b00, #ffd17a, #d86b00);
    box-shadow: 0 0 10px rgba(255, 128, 0, 0.42);
}

@media (hover: hover) and (pointer: fine) {
    :is(.settings-rail-button, .settings-sheet-trigger, .settings-fab):hover {
        border-color: rgba(255, 194, 98, 0.92);
        background:
            linear-gradient(145deg, rgba(255, 255, 255, 0.11) 0%, transparent 36%),
            radial-gradient(circle at 50% -20%, rgba(255, 180, 67, 0.16), transparent 64%),
            linear-gradient(180deg, #27231d 0%, #0b0907 50%, #020202 100%);
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.17),
            inset 0 -3px 7px rgba(0, 0, 0, 0.38),
            0 1px 0 rgba(255, 200, 112, 0.20),
            0 6px 0 #020100,
            0 13px 30px rgba(0, 0, 0, 0.54),
            0 0 24px rgba(255, 121, 0, 0.22);
    }
}

.mobile-tab {
    background: transparent;
    border-bottom-color: rgba(255, 157, 45, 0.28);
    color: rgba(255, 211, 151, 0.62);
    text-shadow: 0 0 9px rgba(255, 125, 0, 0.16);
    transition:
        border-color 180ms ease,
        color 180ms ease,
        text-shadow 180ms ease;
}

.mobile-tab.is-active {
    border-bottom-color: var(--pedestal-amber-bright);
    color: #fff0d3;
    text-shadow:
        0 0 7px rgba(255, 187, 81, 0.58),
        0 0 18px rgba(255, 110, 0, 0.42);
}

.mobile-tab:focus-visible {
    outline-color: var(--pedestal-amber-bright);
}

:is(.control__button, .finalize-button, .completion-button):disabled {
    filter: grayscale(0.38) brightness(0.72);
    opacity: 0.48;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.08),
        0 4px 10px rgba(0, 0, 0, 0.28);
    text-shadow: none;
}

/* Dark silver interface theme ------------------------------------------- */
:root {
    color-scheme: dark;
    --silver-accent: #aeb8b2;
    --silver-accent-bright: #eef2ef;
    --silver-text: #e9edea;
    --silver-muted: #9ba39e;
    --silver-border: rgba(177, 188, 181, 0.42);
    --silver-panel:
        linear-gradient(145deg, rgba(255, 255, 255, 0.055) 0%, transparent 34%),
        linear-gradient(180deg, rgba(42, 47, 43, 0.97), rgba(17, 20, 18, 0.98));
    --pedestal-amber: #aeb7b0;
    --pedestal-amber-bright: #e7ece8;
    --pedestal-amber-pale: var(--silver-text);
    --pedestal-button-border: var(--silver-border);
    --pedestal-button-surface:
        linear-gradient(145deg, rgba(255, 255, 255, 0.10) 0%, transparent 32%),
        radial-gradient(circle at 50% -25%, rgba(201, 212, 205, 0.10), transparent 58%),
        linear-gradient(180deg, #373c38 0%, #202421 47%, #101210 100%);
    --pedestal-button-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.17),
        inset 0 -2px 0 rgba(0, 0, 0, 0.72),
        inset 0 -5px 10px rgba(0, 0, 0, 0.24),
        0 1px 0 rgba(223, 232, 226, 0.13),
        0 4px 0 #080a09,
        0 9px 18px rgba(0, 0, 0, 0.48);
}

body {
    background: #000 url("../img/bg.webp") center bottom / cover no-repeat fixed;
    color: var(--silver-text);
}

.site-header {
    border-bottom-color: rgba(180, 191, 184, 0.24);
    background:
        linear-gradient(180deg, rgba(34, 38, 35, 0.72), rgba(14, 17, 15, 0.60));
    box-shadow:
        inset 0 -1px 0 rgba(0, 0, 0, 0.72),
        0 9px 24px rgba(0, 0, 0, 0.20);
    backdrop-filter: blur(14px);
}

.site-header__title {
    color: #f0f3f1;
    text-shadow:
        0 1px 0 #000,
        0 0 14px rgba(215, 224, 218, 0.12);
}

.site-header__logo {
    filter: brightness(0) invert(1) drop-shadow(0 1px 0 #000) drop-shadow(0 0 7px rgba(215, 224, 218, 0.12));
}

.site-header__subtitle {
    color: rgba(218, 225, 220, 0.66);
}

.finalize-note a,
.completion__publish-notice a,
.publish-consent a,
.site-footer a {
    color: var(--silver-accent-bright);
}

.publish-consent a:focus-visible,
.site-footer a:focus-visible {
    outline-color: rgba(210, 219, 214, 0.58);
}

.control input[type="text"],
.control textarea,
.completion__url-row input {
    border-color: rgba(181, 192, 185, 0.30);
    border-radius: 11px;
    background: linear-gradient(180deg, rgba(10, 12, 11, 0.88), rgba(26, 30, 27, 0.90));
    box-shadow:
        inset 0 2px 8px rgba(0, 0, 0, 0.52),
        0 1px 0 rgba(255, 255, 255, 0.055);
    color: var(--silver-text);
}

.control input[type="text"]:focus,
.control textarea:focus,
.control input[type="color"]:focus,
.completion__url-row input:focus {
    border-color: rgba(220, 228, 223, 0.72);
    outline: 2px solid rgba(210, 219, 214, 0.34);
    outline-offset: 2px;
}

.control__label,
.completion__url-label {
    color: rgba(218, 225, 220, 0.72);
}

.control input[type="color"] {
    border-color: rgba(181, 192, 185, 0.30);
    background: #151816;
}

.settings-backdrop,
.color-palette-dialog::backdrop {
    background: rgba(3, 5, 4, 0.70);
    backdrop-filter: blur(5px);
}

.settings-panel,
.color-palette-dialog,
.completion__panel {
    color: var(--silver-text);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.055) 0%, transparent 28%),
        radial-gradient(circle at 50% 0%, rgba(132, 146, 137, 0.10), transparent 38%),
        linear-gradient(180deg, rgba(38, 43, 39, 0.98), rgba(13, 16, 14, 0.99));
    border-color: rgba(181, 192, 185, 0.34);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.09),
        inset 0 -1px 0 rgba(0, 0, 0, 0.78),
        0 24px 60px rgba(0, 0, 0, 0.56);
}

.color-palette-dialog,
.completion__panel {
    border-radius: 18px;
}

.settings-accordion {
    border-color: rgba(181, 192, 185, 0.24);
    border-radius: 14px;
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.035), transparent 36%),
        rgba(8, 11, 9, 0.40);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.045),
        0 5px 15px rgba(0, 0, 0, 0.18);
}

.settings-accordion > summary {
    color: #e8ece9;
}

.settings-accordion > summary::before,
.settings-accordion > summary::after {
    color: var(--silver-accent);
    text-shadow: 0 0 10px rgba(210, 219, 214, 0.18);
}

.settings-accordion__content,
.completion__section {
    border-color: rgba(181, 192, 185, 0.17);
}

.completion__title,
.completion__section-title,
.color-palette-dialog__title {
    color: #edf1ee;
}

.completion__lead,
.completion__note,
.completion__expiry,
.completion__status,
.completion__publish-notice,
.finalize-note {
    color: rgba(208, 216, 211, 0.65);
}

.publish-consent {
    border-color: rgba(181, 192, 185, 0.25);
    border-radius: 11px;
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.035), transparent 36%),
        rgba(9, 12, 10, 0.48);
    color: rgba(221, 227, 223, 0.78);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.045);
}

.publish-consent:focus-within {
    border-color: rgba(220, 228, 223, 0.72);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.045),
        0 0 0 3px rgba(210, 219, 214, 0.12);
}

.publish-consent input {
    accent-color: var(--silver-accent);
}

.site-footer {
    border-top-color: rgba(181, 192, 185, 0.18);
    background: rgba(8, 11, 9, 0.30);
    color: rgba(194, 202, 197, 0.48);
}

.control__file-button,
:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
) {
    border-color: var(--silver-border);
    border-radius: 12px;
    background: var(--pedestal-button-surface);
    box-shadow: var(--pedestal-button-shadow);
    color: var(--silver-text);
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.86);
}

.color-palette-dialog__close {
    border-radius: 50%;
}

.front-secondary-settings .seal-preset-action,
.name-secondary-settings .seal-preset-action,
.back-stage__actions .seal-preset-action,
.back-stage__actions .back-illustration-toggle,
.settings-panel .control__button--status-toggle,
.completion__live-controls .control__button--status-toggle {
    border-radius: 999px;
}

.seal-preset {
    border-radius: 12px;
}

.seal-preset__preview {
    border-color: rgba(190, 200, 194, 0.22);
    border-radius: 8px;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.10),
        inset 0 0 10px rgba(0, 0, 0, 0.34);
}

@media (hover: hover) and (pointer: fine) {
    .control--file:hover .control__file-button,
    :is(
        .control__button,
        .finalize-button,
        .seal-preset,
        .completion-button,
        .color-palette-dialog__close,
        .color-palette__option
    ):not(:disabled):hover {
        border-color: rgba(220, 228, 223, 0.62);
        background:
            linear-gradient(145deg, rgba(255, 255, 255, 0.145) 0%, transparent 34%),
            radial-gradient(circle at 50% -20%, rgba(211, 221, 214, 0.15), transparent 62%),
            linear-gradient(180deg, #464c47 0%, #292e2a 49%, #141715 100%);
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.22),
            inset 0 -2px 0 rgba(0, 0, 0, 0.72),
            inset 0 -5px 10px rgba(0, 0, 0, 0.20),
            0 1px 0 rgba(233, 239, 235, 0.16),
            0 5px 0 #080a09,
            0 11px 22px rgba(0, 0, 0, 0.50);
        color: #f6f8f6;
        text-shadow: 0 1px 1px #000;
    }
}

:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
):not(:disabled):active {
    box-shadow:
        inset 0 3px 9px rgba(0, 0, 0, 0.76),
        inset 0 -1px 0 rgba(255, 255, 255, 0.07),
        0 1px 0 #080a09,
        0 4px 10px rgba(0, 0, 0, 0.44);
}

:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
):focus-visible,
.control--file:focus-within .control__file-button,
.name-curve-control:focus-within,
.settings-panel :is(button, input, textarea, summary):focus-visible,
.settings-rail-button:focus-visible,
.settings-sheet-trigger:focus-visible,
.settings-fab:focus-visible {
    border-color: var(--silver-accent-bright);
    outline: 2px solid rgba(220, 228, 223, 0.72);
    outline-offset: 3px;
    box-shadow:
        var(--pedestal-button-shadow),
        0 0 0 4px rgba(210, 219, 214, 0.12);
}

.settings-panel .control input[type="text"]:focus,
.settings-panel .control textarea:focus {
    outline: none;
    outline-offset: 0;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.52);
}

:is(.finalize-button, .completion-button--primary, .completion-button--share) {
    border-color: rgba(205, 215, 209, 0.60);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.11) 0%, transparent 33%),
        radial-gradient(circle at 50% -20%, rgba(210, 220, 214, 0.11), transparent 58%),
        linear-gradient(180deg, #3b403c 0%, #222622 48%, #111311 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.18),
        inset 0 -2px 0 rgba(0, 0, 0, 0.76),
        0 1px 0 rgba(225, 233, 228, 0.12),
        0 5px 0 #080a09,
        0 11px 22px rgba(0, 0, 0, 0.50);
    color: #f1f4f2;
    text-shadow: 0 1px 1px #000;
}

@media (hover: hover) and (pointer: fine) {
    :is(.finalize-button, .completion-button--primary, .completion-button--share):not(:disabled):hover {
        border-color: var(--silver-accent-bright);
        background:
            linear-gradient(145deg, rgba(255, 255, 255, 0.15) 0%, transparent 35%),
            radial-gradient(circle at 50% -20%, rgba(218, 227, 221, 0.16), transparent 62%),
            linear-gradient(180deg, #4a504b 0%, #2b302c 50%, #151816 100%);
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.23),
            inset 0 -2px 0 rgba(0, 0, 0, 0.74),
            0 1px 0 rgba(235, 241, 237, 0.16),
            0 6px 0 #080a09,
            0 13px 26px rgba(0, 0, 0, 0.54),
            0 0 17px rgba(210, 219, 214, 0.12);
        color: #fff;
    }
}

.seal-preset.is-active,
.color-palette__option[aria-checked="true"] {
    border-color: var(--silver-accent);
    background: var(--pedestal-button-surface);
    box-shadow:
        var(--pedestal-button-shadow),
        0 0 0 1px rgba(210, 219, 214, 0.16),
        0 0 14px rgba(210, 219, 214, 0.12);
    color: var(--silver-text);
}

.status-toggle__state {
    border-color: rgba(181, 192, 185, 0.30);
    background: linear-gradient(180deg, #171a18, #0b0d0c);
    box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.54);
    color: rgba(210, 217, 213, 0.65);
}

.control__button--status-toggle[aria-pressed="true"] .status-toggle__state,
.control__button.image-area-toggle[aria-pressed="true"] .status-toggle__state,
.name-curve-control input[type="checkbox"]:checked + .status-toggle__state {
    border-color: var(--silver-accent-bright);
    background: linear-gradient(180deg, #eef2ef, #8e9992);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.40),
        0 0 11px rgba(210, 219, 214, 0.20);
    color: #111412;
}

.color-palette__option[aria-checked="true"]::after {
    border-color: rgba(226, 233, 228, 0.62);
    background: #141715;
    box-shadow: 0 0 9px rgba(210, 219, 214, 0.16);
    color: var(--silver-accent-bright);
}

:is(.settings-rail-button, .settings-sheet-trigger, .settings-fab) {
    border-color: var(--silver-border);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.11) 0%, transparent 34%),
        radial-gradient(circle at 50% -20%, rgba(198, 209, 202, 0.10), transparent 60%),
        linear-gradient(180deg, #383d39 0%, #202421 49%, #101210 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.18),
        inset 0 -3px 7px rgba(0, 0, 0, 0.28),
        0 1px 0 rgba(230, 237, 232, 0.11),
        0 5px 0 #080a09,
        0 11px 25px rgba(0, 0, 0, 0.48);
    color: var(--silver-text);
    text-shadow: 0 1px 1px #000;
}

.settings-trigger-bar {
    background: linear-gradient(90deg, #6c746f, #e0e6e2, #6c746f);
    box-shadow: 0 0 8px rgba(219, 228, 222, 0.16);
}

@media (hover: hover) and (pointer: fine) {
    :is(.settings-rail-button, .settings-sheet-trigger, .settings-fab):hover {
        border-color: rgba(220, 228, 223, 0.62);
        background:
            linear-gradient(145deg, rgba(255, 255, 255, 0.15) 0%, transparent 35%),
            radial-gradient(circle at 50% -20%, rgba(211, 221, 214, 0.14), transparent 64%),
            linear-gradient(180deg, #474d48 0%, #292e2a 50%, #141715 100%);
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.22),
            inset 0 -3px 7px rgba(0, 0, 0, 0.25),
            0 1px 0 rgba(237, 242, 239, 0.15),
            0 6px 0 #080a09,
            0 13px 28px rgba(0, 0, 0, 0.52);
    }
}

.mobile-tab {
    border-bottom-color: rgba(181, 192, 185, 0.22);
    color: rgba(206, 214, 209, 0.58);
    text-shadow: none;
}

.mobile-tab.is-active {
    border-bottom-color: var(--silver-accent);
    color: #eef2ef;
    text-shadow: 0 0 12px rgba(210, 219, 214, 0.18);
}

.mobile-tab:focus-visible,
.completed-seal:focus-visible {
    outline-color: var(--silver-accent);
}

:is(.control__button, .finalize-button, .completion-button):disabled {
    filter: saturate(0.35) brightness(0.72);
    opacity: 0.48;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.07),
        0 3px 0 #080a09,
        0 7px 13px rgba(0, 0, 0, 0.34);
}

.settings-panel .seal-presets__track {
    margin-right: 0;
    margin-left: 0;
    padding-right: 14px;
    padding-left: 14px;
    scroll-padding-inline: 14px;
}

/* Soft graphite buttons -------------------------------------------------
   Raised at rest, inset while selected. Pointer presses never move layout. */
:root {
    --graphite-button-surface:
        linear-gradient(145deg, rgba(255, 255, 255, 0.11), transparent 34%),
        linear-gradient(180deg, #3d4245 0%, #2d3235 52%, #24282b 100%);
    --graphite-button-hover:
        linear-gradient(145deg, rgba(255, 255, 255, 0.14), transparent 36%),
        linear-gradient(180deg, #454a4d 0%, #33383b 52%, #282c2f 100%);
    --graphite-button-pressed:
        linear-gradient(180deg, #252a2d 0%, #303538 100%);
    --graphite-button-border: rgba(8, 10, 11, 0.72);
    --graphite-button-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.13),
        inset 0 -1px 0 rgba(0, 0, 0, 0.38),
        0 1px 1px rgba(255, 255, 255, 0.035),
        0 4px 8px rgba(0, 0, 0, 0.48);
    --graphite-button-inset-shadow:
        inset 0 2px 5px rgba(0, 0, 0, 0.72),
        inset 0 -1px 0 rgba(255, 255, 255, 0.075),
        0 1px 1px rgba(255, 255, 255, 0.025);
}

.control__file-button,
:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
) {
    border-color: var(--graphite-button-border);
    background: var(--graphite-button-surface);
    box-shadow: var(--graphite-button-shadow);
    color: #d9dddf;
    text-shadow:
        0 1px 1px rgba(0, 0, 0, 0.92),
        0 -1px 0 rgba(255, 255, 255, 0.035);
}

:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
):not(:disabled) {
    transition:
        background 140ms ease,
        border-color 140ms ease,
        box-shadow 140ms ease,
        color 140ms ease,
        filter 140ms ease;
}

@media (hover: hover) and (pointer: fine) {
    .control--file:hover .control__file-button,
    :is(
        .control__button,
        .finalize-button,
        .seal-preset,
        .completion-button,
        .color-palette-dialog__close,
        .color-palette__option
    ):not(:disabled):hover {
        border-color: rgba(8, 10, 11, 0.82);
        background: var(--graphite-button-hover);
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.16),
            inset 0 -1px 0 rgba(0, 0, 0, 0.40),
            0 1px 1px rgba(255, 255, 255, 0.04),
            0 5px 10px rgba(0, 0, 0, 0.52);
        color: #f0f2f3;
        filter: none;
    }
}

:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
):not(:disabled):active {
    background: var(--graphite-button-pressed);
    box-shadow: var(--graphite-button-inset-shadow);
    transform: none;
}

/* Keep selected seal types raised; use a bright outline instead of a recess. */
.seal-preset.is-active,
.seal-preset[aria-checked="true"] {
    border-color: rgba(230, 235, 238, 0.92);
    background: var(--graphite-button-surface);
    box-shadow:
        var(--graphite-button-shadow),
        0 0 0 2px rgba(230, 235, 238, 0.24),
        0 0 14px rgba(230, 235, 238, 0.18);
    color: #fff;
    transform: none;
}

/* Compact palette choices retain their pressed selection treatment. */
.color-palette__option[aria-checked="true"] {
    border-color: rgba(6, 8, 9, 0.88);
    background: var(--graphite-button-pressed);
    box-shadow: var(--graphite-button-inset-shadow);
    color: #f1f3f4;
    transform: none;
}

.control__button--status-toggle[aria-pressed="true"] .status-toggle__state,
.control__button.image-area-toggle[aria-pressed="true"] .status-toggle__state,
.name-curve-control input[type="checkbox"]:checked + .status-toggle__state {
    border-color: rgba(5, 7, 8, 0.86);
    background: linear-gradient(180deg, #c8ced1, #8d969a);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.32),
        inset 0 1px 3px rgba(0, 0, 0, 0.24);
    color: #15191b;
}

/* Earlier component rules used translateY to imitate a physical click. */
:is(
    .control__button,
    .finalize-button,
    .seal-preset,
    .completion-button,
    .color-palette-dialog__close,
    .color-palette__option
):active {
    transform: none !important;
}

/* ボタンは内側の枠色でフォーカスを示し、外側の二重線は表示しない。 */
button:focus-visible {
    outline: none !important;
    outline-offset: 0 !important;
}