*,
*::before,
*::after {
    box-sizing: border-box;
}

html.theme-modern {
    background: var(--canvas);
    font-size: 17px;
}

body.theme-modern {
    --content-max: min(1120px, calc(100% - 40px));
    --main-fs: 0.8;
    --main-sp: 0.7;
    --foot-fs: 0.75;
    --foot-sp: 0.7;
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--ink);
    background: var(--canvas);
    font-family: var(--font);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    color: var(--ink);
}

a:focus,
button:focus {
    outline: none;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

img {
    max-width: 100%;
    height: auto;
}

.site-top {
    position: sticky;
    top: 0;
    z-index: 40;
    display: flex;
    align-items: center;
    gap: 28px;
    padding: 16px 28px;
    background: color-mix(in srgb, var(--canvas) 88%, transparent);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(16px);
}

.brand {
    color: var(--ink);
    font-weight: 650;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.site-nav {
    display: flex;
    flex: 1;
    gap: 18px;
    overflow-x: auto;
}

.site-nav a {
    color: var(--muted);
    font-size: 0.95rem;
    font-weight: 500;
    white-space: nowrap;
}

.site-nav a:hover {
    color: var(--ink);
}

.account-slot {
    margin-left: auto;
}

.account-menu {
    position: relative;
}

.account-menu summary {
    list-style: none;
    cursor: pointer;
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.account-menu summary::-webkit-details-marker {
    display: none;
}

.account-panel {
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    width: 260px;
    padding: 16px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 16px 40px rgba(22, 21, 19, 0.12);
}

.account-panel p,
.account-panel h6 {
    margin: 0 0 10px;
    font-size: 0.9rem;
    color: var(--muted);
}

.account-panel button,
.account-panel input,
.state-panel button,
.state-panel input {
    width: 100%;
    margin-top: 8px;
    padding: 9px 12px;
    color: var(--ink);
    background: var(--canvas);
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: inherit;
    font-size: 0.9rem;
}

.account-panel button:hover,
.state-panel button:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.site-main {
    flex: 1 0 auto;
    width: var(--content-max);
    margin: 0 auto;
    padding: calc(28px * var(--main-sp)) 0 calc(80px * var(--main-sp));
    font-size: calc(1rem * var(--main-fs));
    line-height: calc(1.55 * var(--main-sp));
}

.hero {
    padding: calc(48px * var(--main-sp)) 0 calc(24px * var(--main-sp));
    max-width: 40rem;
}

.hero h4,
.hero-title h4 {
    margin: 0;
    font-size: calc(2.6rem * var(--main-fs));
    font-weight: 650;
    letter-spacing: -0.04em;
    line-height: max(1, calc(1.05 * var(--main-sp)));
}

.hero h6,
.hero-lede,
.hero-lede h6 {
    margin: calc(12px * var(--main-sp)) 0 0;
    color: var(--muted);
    font-size: calc(1.15rem * var(--main-fs));
    font-weight: 400;
}

.hero-body,
.hero-body h6,
.hero-body p {
    margin: calc(18px * var(--main-sp)) 0 0;
    font-size: calc(1.05rem * var(--main-fs));
}

.studio-section {
    padding: calc(56px * var(--main-sp)) 0 calc(8px * var(--main-sp));
    scroll-margin-top: 72px;
    border-top: 1px solid var(--line);
}

.section-head {
    display: grid;
    grid-template-columns: calc(3.5rem * var(--main-sp)) 1fr;
    gap: calc(12px * var(--main-sp));
    margin-bottom: calc(28px * var(--main-sp));
    align-items: baseline;
}

.section-index {
    color: var(--accent);
    font-size: calc(0.8rem * var(--main-fs));
    font-weight: 600;
    letter-spacing: 0.08em;
}

.section-head h2 {
    margin: 0;
    font-size: calc(1.7rem * var(--main-fs));
    font-weight: 650;
    letter-spacing: -0.03em;
}

.section-head p {
    margin: calc(6px * var(--main-sp)) 0 0;
    color: var(--muted);
}

.feature {
    display: grid;
    gap: calc(28px * var(--main-sp));
}

.intro-feature {
    padding: calc(48px * var(--main-sp)) 0 calc(24px * var(--main-sp));
}

@media (min-width: 840px) {
    .feature {
        grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
        align-items: start;
    }
}

.feature-media img,
.reading-media img,
.piece-media img {
    display: block;
    width: 100%;
    object-fit: cover;
    background: var(--surface-2);
    border-radius: calc(14px * var(--main-sp));
}

.feature-copy h3,
.piece-card h3 {
    margin: 0 0 calc(6px * var(--main-sp));
    font-size: calc(1.35rem * var(--main-fs));
    font-weight: 650;
    letter-spacing: -0.02em;
}

.feature-copy h3 a,
.piece-card {
    color: var(--ink);
}

.feature-sub,
.piece-card p,
.reading-sub {
    margin: 0 0 calc(16px * var(--main-sp));
    color: var(--muted);
}

.piece-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: calc(22px * var(--main-sp));
}

.piece-card h3 {
    margin-top: calc(12px * var(--main-sp));
    font-size: calc(1.05rem * var(--main-fs));
}

.piece-more {
    color: var(--ink);
}

.piece-more-media {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-2);
    border-radius: calc(14px * var(--main-sp));
    color: var(--accent);
    font-size: calc(2rem * var(--main-fs));
    font-weight: 500;
}

.piece-more:hover .piece-more-media {
    background: color-mix(in srgb, var(--accent) 12%, var(--surface-2));
}

.piece-media img,
.piece-more-media {
    aspect-ratio: 1 / 1;
}

.feature-media img {
    aspect-ratio: 16 / 10;
}

.piece-media {
    position: relative;
}

.piece-tags,
.reading-tags {
    display: flex;
    flex-wrap: wrap;
    gap: calc(4px * var(--main-sp));
    margin-top: calc(10px * var(--main-sp));
}

.piece-tags {
    position: absolute;
    top: calc(10px * var(--main-sp));
    left: calc(10px * var(--main-sp));
    margin-top: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

.piece-media:hover .piece-tags {
    opacity: 1;
    pointer-events: auto;
}

.item-tag {
    padding: calc(2px * var(--main-sp)) calc(5px * var(--main-sp));
    border-radius: 999px;
    background: color-mix(in srgb, var(--canvas) 80%, transparent);
    color: var(--ink);
    font-size: calc(0.8rem * var(--main-fs));
    font-weight: 500;
}

.item-tag.selected {
    background: var(--accent);
    color: var(--canvas);
}

.reading {
    max-width: 44rem;
    padding-top: calc(28px * var(--main-sp));
}

.reading h1 {
    margin: calc(8px * var(--main-sp)) 0 calc(10px * var(--main-sp));
    font-size: calc(2.3rem * var(--main-fs));
    font-weight: 650;
    letter-spacing: -0.04em;
    line-height: max(1, calc(1.1 * var(--main-sp)));
}

.kicker {
    margin: 0;
    color: var(--muted);
    font-size: calc(0.85rem * var(--main-fs));
    letter-spacing: 0.04em;
}

.reading-media {
    margin: calc(8px * var(--main-sp)) 0 calc(24px * var(--main-sp));
}

.reading:has(.album-grid) {
    max-width: min(1120px, 100%);
}

.album-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: calc(14px * var(--main-sp));
    margin: calc(16px * var(--main-sp)) 0 calc(24px * var(--main-sp));
}

.album-grid img {
    border-radius: calc(14px * var(--main-sp));
    background: var(--surface-2);
}

.album-grid figcaption {
    margin-top: calc(6px * var(--main-sp));
    font-size: calc(0.82rem * var(--main-fs));
    line-height: calc(1.35 * var(--main-sp));
    color: var(--muted);
    opacity: 1;
}

.piece-body,
.item-description-content {
    font-size: calc(1.02rem * var(--main-fs));
    line-height: calc(1.65 * var(--main-sp));
}

.piece-body h4,
.piece-body h6,
.item-description-content h4,
.item-description-content h6 {
    font-family: inherit;
    font-weight: 600;
    line-height: calc(1.35 * var(--main-sp));
}

.piece-body p,
.item-description-content p {
    max-width: 62ch;
}

.item-comments {
    margin-top: calc(36px * var(--main-sp));
    padding-top: calc(20px * var(--main-sp));
    border-top: 1px solid var(--line);
}

.item-comment {
    margin-bottom: calc(16px * var(--main-sp));
}

.comment-meta {
    display: flex;
    gap: calc(10px * var(--main-sp));
    color: var(--muted);
    font-size: calc(0.85rem * var(--main-fs));
}

.site-foot {
    width: var(--content-max);
    margin: 0 auto;
    padding: calc(28px * var(--foot-sp)) 0 calc(40px * var(--foot-sp));
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: calc(0.88rem * var(--foot-fs));
    line-height: calc(1.55 * var(--foot-sp));
}

.foot-up {
    display: flex;
    justify-content: flex-end;
}

.foot-down {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: calc(24px * var(--foot-sp));
}

.foot-org {
    text-align: right;
}

.foot-divider {
    height: 0;
    margin: calc(20px * var(--foot-sp)) 0;
    background: var(--line);
}

.foot-copy {
    max-width: 50%;
    text-align: left;
}

.foot-studio {
    max-width: 50%;
    text-align: right;
}

.site-foot h4 {
    margin: 0 0 calc(8px * var(--foot-sp));
    color: var(--ink);
    font-size: calc(1rem * var(--foot-fs));
}

.site-foot b {
    color: var(--ink);
    font-weight: 500;
}

.site-foot label {
    font-weight: 400;
}

.site-foot .soft-version {
    display: inline-block;
    vertical-align: top;
}

.site-foot .company-social {
    display: inline-block;
    padding: calc(4px * var(--foot-sp)) calc(2px * var(--foot-sp));
}

.site-foot .company-social img {
    width: calc(24px * var(--foot-fs));
    height: calc(24px * var(--foot-fs));
    vertical-align: middle;
}

.state-panel {
    max-width: 36rem;
    padding: calc(48px * var(--main-sp)) 0;
}

.state-panel h1 {
    margin: calc(8px * var(--main-sp)) 0;
    font-size: calc(3rem * var(--main-fs));
    letter-spacing: -0.04em;
}

.progressbar-border {
    height: 3px;
    margin: calc(16px * var(--main-sp)) 0;
    background: var(--line);
}

.progressbar-progress {
    height: 100%;
    background: var(--accent);
}

.notification {
    margin: calc(12px * var(--main-sp)) 0;
    padding: calc(12px * var(--main-sp));
    border-radius: calc(10px * var(--main-sp));
}

.notification.success {
    background: var(--color-notification-success-bg);
    color: var(--color-notification-success-text);
}

.notification.failure {
    background: var(--color-notification-failure-bg);
    color: var(--color-notification-failure-text);
}

#popup-registration-container {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: none;
    background: rgb(22 21 19 / 0.45);
}

#popup-registration-container:not([hidden]) {
    display: block;
}

#registration-window-content {
    max-width: 720px;
    max-height: 90vh;
    margin: 40px auto;
    padding: 28px;
    overflow: auto;
    background: var(--surface);
    border-radius: 16px;
}

.theme-modern .item-type,
.theme-modern .error-type {
    background: none !important;
    padding: 0;
    margin: 0 0 calc(8px * var(--main-sp));
    color: var(--accent);
    font-size: calc(0.8rem * var(--main-fs));
    font-weight: 600;
    filter: none;
    text-shadow: none;
}

@media screen and (max-width: 800px) {
    body.theme-modern {
        --content-max: calc(100% - 32px);
    }
    .site-top {
        flex-wrap: wrap;
        gap: 10px 16px;
        padding: 12px 16px;
    }

    .site-nav {
        order: 3;
        width: 100%;
    }

    .hero h4,
    .hero-title h4 {
        font-size: calc(2rem * var(--main-fs));
    }

    .site-foot {
        padding: calc(24px * var(--foot-sp)) 0 calc(40px * var(--foot-sp));
    }

    .foot-up,
    .foot-down {
        flex-direction: column;
        gap: calc(20px * var(--foot-sp));
    }

    .foot-org,
    .foot-copy,
    .foot-studio {
        width: 100%;
        max-width: 100%;
        text-align: left;
    }
}