:root {
    color-scheme: light;
    --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI Variable Display", "Segoe UI", sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI Variable Text", "Segoe UI", sans-serif;
    --font-accent: var(--font-display);
}

:root,
:root[data-theme="light"] {
    --page-background: #f5f5f7;
    --panel-background: rgba(255, 255, 255, 0.9);
    --panel-strong: #ffffff;
    --surface-border: rgba(0, 0, 0, 0.1);
    --text-primary: #1d1d1f;
    --text-muted: #6e6e73;
    --accent: #0071e3;
    --accent-strong: #005bb5;
    --accent-soft: rgba(0, 113, 227, 0.08);
    --button-secondary: rgba(0, 0, 0, 0.04);
    --shadow-soft: 0 24px 64px rgba(0, 0, 0, 0.08);
    --shadow-card: 0 14px 36px rgba(0, 0, 0, 0.06);
    --hero-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(245, 245, 247, 0.9));
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --page-background: #101418;
    --panel-background: rgba(29, 29, 31, 0.86);
    --panel-strong: #1d1d1f;
    --surface-border: rgba(255, 255, 255, 0.14);
    --text-primary: #f5f5f7;
    --text-muted: #a1a1a6;
    --accent: #2997ff;
    --accent-strong: #0077ed;
    --accent-soft: rgba(41, 151, 255, 0.14);
    --button-secondary: rgba(255, 255, 255, 0.08);
    --shadow-soft: 0 28px 76px rgba(0, 0, 0, 0.42);
    --shadow-card: 0 18px 44px rgba(0, 0, 0, 0.3);
    --hero-gradient: linear-gradient(180deg, rgba(29, 29, 31, 0.82), rgba(16, 20, 24, 0.92));
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        color-scheme: dark;
        --page-background: #101418;
        --panel-background: rgba(29, 29, 31, 0.86);
        --panel-strong: #1d1d1f;
        --surface-border: rgba(255, 255, 255, 0.14);
        --text-primary: #f5f5f7;
        --text-muted: #a1a1a6;
        --accent: #2997ff;
        --accent-strong: #0077ed;
        --accent-soft: rgba(41, 151, 255, 0.14);
        --button-secondary: rgba(255, 255, 255, 0.08);
        --shadow-soft: 0 28px 76px rgba(0, 0, 0, 0.42);
        --shadow-card: 0 18px 44px rgba(0, 0, 0, 0.3);
        --hero-gradient: linear-gradient(180deg, rgba(29, 29, 31, 0.82), rgba(16, 20, 24, 0.92));
    }
}

:root[data-theme="sepia"] {
    color-scheme: light;
    --page-background: #f7f2ea;
    --panel-background: rgba(255, 252, 247, 0.92);
    --panel-strong: #fffaf4;
    --surface-border: rgba(89, 72, 54, 0.16);
    --text-primary: #2d261f;
    --text-muted: #6d6258;
    --accent: #7a5c38;
    --accent-strong: #5d4327;
    --accent-soft: rgba(122, 92, 56, 0.1);
    --button-secondary: rgba(45, 38, 31, 0.05);
    --shadow-soft: 0 24px 64px rgba(45, 38, 31, 0.08);
    --shadow-card: 0 14px 36px rgba(45, 38, 31, 0.06);
    --hero-gradient: linear-gradient(180deg, rgba(255, 250, 244, 0.86), rgba(247, 242, 234, 0.92));
}

:root[data-theme="high-contrast"] {
    color-scheme: dark;
    --page-background: #000000;
    --panel-background: #0a0a0a;
    --panel-strong: #000000;
    --surface-border: #ffffff;
    --text-primary: #ffffff;
    --text-muted: #f0f0f0;
    --accent: #ffd500;
    --accent-strong: #ffee66;
    --accent-soft: rgba(255, 213, 0, 0.22);
    --button-secondary: rgba(255, 255, 255, 0.12);
    --shadow-soft: 0 0 0 2px #ffffff;
    --shadow-card: 0 0 0 2px #ffffff;
    --hero-gradient: linear-gradient(135deg, #000000, #101010);
}

:root[data-theme="high-contrast"] .button,
:root[data-theme="high-contrast"] .panel-card,
:root[data-theme="high-contrast"] .topbar,
:root[data-theme="high-contrast"] .hero,
:root[data-theme="high-contrast"] .download,
:root[data-theme="high-contrast"] .workflow {
    border-width: 2px;
}

:root[data-theme="high-contrast"] a {
    text-decoration: underline;
}

:root[data-theme="high-contrast"] .button:focus-visible,
:root[data-theme="high-contrast"] button:focus-visible,
:root[data-theme="high-contrast"] input:focus-visible,
:root[data-theme="high-contrast"] textarea:focus-visible,
:root[data-theme="high-contrast"] select:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 3px;
}

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

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-body);
    background: var(--page-background);
    color: var(--text-primary);
    font-feature-settings: "kern";
    text-rendering: optimizeLegibility;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font: inherit;
}

.site-shell {
    width: min(1240px, calc(100% - 48px));
    margin: 0 auto;
    padding: 24px 0 48px;
}

.topbar {
    position: sticky;
    top: 16px;
    z-index: 10;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 16px;
    align-items: center;
    padding: 10px 12px;
    border: 1px solid var(--surface-border);
    border-radius: 18px;
    background: var(--panel-background);
    backdrop-filter: blur(22px);
    box-shadow: var(--shadow-card);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 650;
    letter-spacing: 0;
}

.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 36px;
    height: 36px;
    overflow: hidden;
    border: 1px solid var(--surface-border);
    border-radius: 8px;
    background: var(--panel-strong);
    color: var(--text-primary);
    font-size: 0.78rem;
    font-weight: 700;
}

.brand-mark img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.topnav {
    display: inline-flex;
    justify-content: center;
    gap: 24px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.topnav a:hover,
.topnav a:focus-visible {
    color: var(--text-primary);
}

.theme-picker {
    display: inline-flex;
    gap: 2px;
    padding: 4px;
    border-radius: 999px;
    background: var(--button-secondary);
}

.theme-picker button {
    min-height: 32px;
    padding: 0 11px;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
}

.theme-picker button[aria-pressed="true"] {
    background: var(--panel-strong);
    color: var(--text-primary);
    box-shadow: inset 0 0 0 1px var(--surface-border);
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.9fr);
    gap: 56px;
    align-items: center;
    margin-top: 56px;
    padding: 40px 0 48px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.eyebrow {
    margin: 0 0 16px;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero h1,
.workflow h2,
.download h2,
.feature-card h2 {
    margin: 0;
    font-family: var(--font-accent);
    font-weight: 700;
    line-height: 1.03;
}

.hero h1 {
    max-width: 760px;
    font-size: 72px;
    letter-spacing: 0;
}

.hero-text {
    max-width: 680px;
    margin: 22px 0 0;
    font-size: 1.12rem;
    line-height: 1.58;
    color: var(--text-muted);
}

.hero-actions,
.download-grid {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-height: 44px;
    padding: 0 19px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    transition: transform 140ms ease, background-color 140ms ease, border-color 140ms ease;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-1px);
}

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

.button.primary {
    background: var(--accent);
    color: #ffffff;
    box-shadow: none;
}

.button.secondary {
    border-color: var(--surface-border);
    background: var(--panel-strong);
}

.button.wide {
    width: 100%;
}

.hero-panel {
    display: grid;
    gap: 14px;
}

.hero-card,
.feature-card,
.download-card,
.workflow-steps li {
    border: 1px solid var(--surface-border);
    border-radius: 8px;
    background: var(--panel-background);
    box-shadow: none;
}

.hero-card {
    padding: 24px;
}

.hero-card.accent {
    background: var(--panel-strong);
}

.hero-card-label {
    margin: 0 0 10px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-muted);
}

.metric-list {
    margin: 0;
    padding-left: 18px;
    line-height: 1.75;
    color: var(--text-muted);
}

.section-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 28px;
}

.feature-card {
    padding: 24px;
}

.feature-card h2 {
    font-size: 1.55rem;
    margin-bottom: 10px;
}

.feature-card p,
.download-card p,
.workflow-copy p,
.workflow-steps span,
.hero-card p {
    margin: 0;
    color: var(--text-muted);
    line-height: 1.7;
}

.workflow,
.download {
    margin-top: 28px;
    padding: 32px;
    border: 1px solid var(--surface-border);
    border-radius: 8px;
    background: var(--panel-background);
    box-shadow: none;
}

.workflow {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 24px;
}

.workflow h2,
.download h2 {
    font-size: 48px;
    margin-bottom: 16px;
}

.workflow-steps {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 14px;
}

.workflow-steps li {
    padding: 22px;
    display: grid;
    gap: 8px;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.download-card {
    padding: 24px;
}

.download-card h3 {
    margin-top: 0;
    font-size: 1.4rem;
}

.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    padding: 8px 6px 0;
    color: var(--text-muted);
}

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

.search-form {
    position: relative;
    display: flex;
    gap: 8px;
    align-items: center;
    margin-top: 18px;
    max-width: 560px;
}

.search-form-input {
    flex: 1;
    padding: 10px 14px;
    font-size: 15px;
    border-radius: 10px;
    border: 1px solid var(--border, rgba(0, 0, 0, 0.18));
    background: var(--surface, #fff);
    color: inherit;
}

.search-form-input:focus-visible {
    outline: 2px solid var(--accent, currentColor);
    outline-offset: 2px;
}

.search-autocomplete {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 96px;
    max-height: 360px;
    overflow: auto;
    background: var(--surface, #fff);
    border: 1px solid var(--border, rgba(0, 0, 0, 0.14));
    border-radius: 12px;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.12);
    z-index: 40;
}

.search-autocomplete[hidden] {
    display: none;
}

.search-autocomplete-item {
    display: grid;
    grid-template-columns: 72px 1fr;
    grid-template-rows: auto auto;
    gap: 2px 10px;
    padding: 10px 12px;
    text-decoration: none;
    color: inherit;
    border-bottom: 1px solid var(--border-subtle, rgba(0, 0, 0, 0.06));
}

.search-autocomplete-item:last-child {
    border-bottom: none;
}

.search-autocomplete-item.is-active,
.search-autocomplete-item:hover {
    background: var(--surface-hover, rgba(0, 0, 0, 0.04));
}

.search-autocomplete-kind {
    grid-row: 1 / span 2;
    align-self: center;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted, #667);
}

.search-autocomplete-title {
    font-weight: 600;
}

.search-autocomplete-subtitle {
    font-size: 13px;
    color: var(--muted, #667);
}

.genre-index {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.genre-chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--border, rgba(0, 0, 0, 0.14));
    text-decoration: none;
    color: inherit;
    font-size: 13px;
    background: var(--surface, transparent);
}

.genre-chip:hover {
    background: var(--surface-hover, rgba(0, 0, 0, 0.04));
}

.genre-chip-static {
    cursor: default;
    opacity: 0.85;
}

.review-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-top: 16px;
}

.review-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.review-card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.review-stars {
    color: var(--accent, #b8860b);
    letter-spacing: 2px;
}

.badge-verified {
    background: var(--accent-soft, rgba(0, 128, 0, 0.12));
    color: var(--accent, #1a7a3a);
}

@media (max-width: 960px) {
    .topbar,
    .hero,
    .workflow {
        grid-template-columns: 1fr;
    }

    .topbar {
        align-items: start;
    }

    .topnav {
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .hero {
        gap: 28px;
        margin-top: 40px;
        padding: 24px 0 36px;
    }

    .hero h1 {
        font-size: 56px;
    }

    .download-grid,
    .section-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .site-shell {
        width: min(100% - 24px, 1240px);
        padding-top: 12px;
    }

    .topbar,
    .workflow,
    .download {
        padding: 18px;
        border-radius: 8px;
    }

    .topbar {
        gap: 14px;
    }

    .hero {
        padding: 18px 0 28px;
    }

    .hero h1 {
        font-size: 42px;
        line-height: 1.06;
    }

    .workflow h2,
    .download h2 {
        font-size: 32px;
        line-height: 1.08;
    }

    .theme-picker {
        flex-wrap: wrap;
    }

    .footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--surface-border);
    background: var(--button-secondary);
    color: var(--text-muted);
    font-size: 12px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.status-banner {
    padding: 18px 20px;
    border-radius: 18px;
    border: 1px solid var(--surface-border);
    background: var(--panel-background);
    margin-bottom: 16px;
}

.error-banner {
    border-color: rgba(194, 35, 35, 0.48);
    background: rgba(194, 35, 35, 0.08);
}

.success-banner {
    border-color: rgba(34, 139, 84, 0.48);
    background: rgba(34, 139, 84, 0.08);
}

.error-text {
    color: #b12a2a;
}

:root[data-theme="dark"] .error-text,
:root[data-theme="high-contrast"] .error-text {
    color: #ff9090;
}

.form-field {
    display: grid;
    gap: 6px;
    margin-bottom: 14px;
}

.form-field > span {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 13px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.form-field input,
.form-field textarea,
.form-field select {
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--surface-border);
    background: var(--panel-strong);
    color: var(--text-primary);
    font: inherit;
}

.form-field input:focus-visible,
.form-field textarea:focus-visible,
.form-field select:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.metadata-form {
    padding: 22px;
}

.inline-form {
    display: inline-flex;
    margin: 0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}

.data-table th,
.data-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--surface-border);
}

.data-table th {
    color: var(--text-muted);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.feed-list {
    display: grid;
    gap: 14px;
}

.post-card,
.feed-card {
    padding: 18px 20px;
}

.skeleton {
    position: relative;
    overflow: hidden;
    background: var(--button-secondary);
    border-radius: 10px;
    min-height: 16px;
}

.skeleton::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
    animation: skeleton-shimmer 1.4s infinite;
}

@keyframes skeleton-shimmer {
    from { transform: translateX(-100%); }
    to { transform: translateX(100%); }
}

.empty-state {
    padding: 32px;
    text-align: center;
    border: 1px dashed var(--surface-border);
    border-radius: 18px;
    background: var(--panel-background);
    color: var(--text-muted);
}

.offline-banner {
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid var(--surface-border);
    background: var(--accent-soft);
    color: var(--text-primary);
    font-size: 13px;
}

.page-section {
    margin-top: 24px;
}

.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 12px;
}

.section-label {
    margin: 0;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.author-metadata-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 8px 16px;
    margin: 0;
    padding: 0;
}

.author-metadata-list > div {
    display: grid;
    gap: 2px;
}

.author-metadata-list dt {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.author-metadata-list dd {
    margin: 0;
    font-weight: 600;
}

.community-hero .hero-copy {
    max-width: 760px;
}

.community-forum-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

.community-forum-card,
.community-thread-card,
.community-comment-card {
    color: inherit;
    text-decoration: none;
    padding: 20px;
}

.community-thread-list,
.community-comment-list {
    display: grid;
    gap: 14px;
}

.community-thread-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
    gap: 18px;
    align-items: start;
}

.community-thread-main {
    padding: 28px;
}

.community-sidebar {
    display: grid;
    gap: 14px;
}

.community-standing-panel {
    display: block;
}

.community-standing-list {
    display: grid;
    gap: 10px;
    margin: 16px 0 0;
}

.community-standing-list div {
    display: grid;
    gap: 3px;
}

.community-standing-list dt {
    color: var(--text-muted);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.community-standing-list dd {
    margin: 0;
    font-weight: 600;
}

.community-tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 16px 0;
}

.community-report-card {
    padding: 18px;
}

.community-report-inline {
    display: grid;
    gap: 8px;
    margin-top: 12px;
}

@media (max-width: 900px) {
    .community-thread-layout {
        grid-template-columns: 1fr;
    }
}