:root {
    --ink: #13283a;
    --ink-soft: #4c6371;
    --brand-green: #42a84a;
    --brand-green-deep: #2f7335;
    --paper: #f6f2ea;
    --line: rgba(19, 40, 58, 0.12);
    --shadow-lg: 0 18px 54px rgba(19, 40, 58, 0.08);
    --shadow-md: 0 10px 26px rgba(19, 40, 58, 0.06);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --max-width: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--ink);
    font-family: Inter, "Helvetica Neue", Arial, sans-serif;
    background:
        radial-gradient(circle at 84% 8%, rgba(66, 168, 74, 0.1), transparent 20rem),
        radial-gradient(circle at 16% 18%, rgba(19, 40, 58, 0.035), transparent 22rem),
        linear-gradient(180deg, #fcfbf8 0%, #f7f2e8 58%, #f3ecdf 100%);
    line-height: 1.6;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.skip-link {
    position: absolute;
    left: 1rem;
    top: -3.5rem;
    z-index: 100;
    min-height: 2.75rem;
    padding: 0.75rem 1rem;
    border-radius: 14px;
    background: #ffffff;
    color: var(--ink);
    font-weight: 800;
    text-decoration: none;
    box-shadow: 0 14px 32px rgba(19, 40, 58, 0.16);
    transition: top 160ms ease;
}
.skip-link:focus {
    top: 1rem;
}
code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-size: 0.93em;
}

.page-shell {
    width: min(var(--max-width), calc(100vw - 2.4rem));
    margin: 0 auto;
    padding: 1.2rem 0 4rem;
}

.page-shell.narrow {
    --max-width: 1180px;
}

.masthead {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 0.9rem 1rem;
    border: 1px solid rgba(19, 40, 58, 0.08);
    border-radius: 24px;
    background: rgba(251, 249, 244, 0.95);
    backdrop-filter: blur(8px);
    box-shadow: 0 8px 22px rgba(19, 40, 58, 0.04);
}

.brand-lockup { display: flex; align-items: center; gap: 0.85rem; min-width: 0; }
.brand-mark {
    width: 2.7rem;
    height: 2.7rem;
    border-radius: 16px;
    padding: 0.45rem;
    background: linear-gradient(160deg, #ffffff, #eef5eb);
    border: 1px solid rgba(66, 168, 74, 0.2);
}
.eyebrow {
    margin: 0 0 0.3rem;
    color: var(--brand-green-deep);
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.brand-name, h1, h2, h3 {
    font-family: "Inter Tight", Inter, "Helvetica Neue", Arial, sans-serif;
    letter-spacing: -0.03em;
}
.brand-name { margin: 0; font-size: 1.1rem; line-height: 1; }
.brand-subline { margin: 0.22rem 0 0; color: var(--ink-soft); font-size: 0.88rem; }

.masthead-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.6rem; }
.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 0.9rem;
    color: var(--ink-soft);
    font-size: 0.92rem;
}
.breadcrumb a {
    text-decoration: none;
    color: inherit;
    font-weight: 700;
}
.pill-link, .hero-actions a, .asset-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 2.75rem;
    padding: 0.65rem 1rem;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.72);
    color: var(--ink);
    text-decoration: none;
    font-weight: 700;
    transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}
.pill-link:hover, .hero-actions a:hover, .asset-links a:hover {
    transform: translateY(-1px);
    border-color: rgba(66, 168, 74, 0.34);
    background: rgba(255, 255, 255, 0.96);
}
.pill-link:focus-visible,
.hero-actions a:focus-visible,
.asset-links a:focus-visible,
.jump-link:focus-visible,
.family-switch a:focus-visible,
.filter-chip:focus-visible,
.search-field input:focus-visible {
    outline: 3px solid rgba(66, 168, 74, 0.34);
    outline-offset: 3px;
}

.hero {
    overflow: hidden;
    padding: clamp(1.5rem, 3vw, 2rem);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(19, 40, 58, 0.08);
    color: var(--ink);
    background:
        radial-gradient(circle at 82% 22%, rgba(66, 168, 74, 0.14), transparent 18rem),
        linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 244, 236, 0.92));
    box-shadow: var(--shadow-md);
}
.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.8rem;
}
.hero h1 {
    margin: 0;
    max-width: 11ch;
    font-size: clamp(2.4rem, 5vw, 4.4rem);
    line-height: 0.96;
}
.hero p { margin: 0.8rem 0 0; max-width: 58ch; color: var(--ink-soft); font-size: 1.02rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.25rem; }
.hero-actions a.primary {
    border-color: rgba(66, 168, 74, 0.35);
    background: var(--ink);
    color: #f9fff8;
}
.hero-note {
    max-width: 52ch;
    margin-top: 1rem;
    padding-top: 0.9rem;
    border-top: 1px solid rgba(19, 40, 58, 0.08);
    font-size: 0.95rem;
}
.hero-stat-stack {
    display: grid;
    gap: 0.8rem;
}
.hero-stat {
    padding: 0.95rem 1rem;
    border: 1px solid rgba(19, 40, 58, 0.08);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.72);
}
.hero-stat strong {
    display: block;
    font-size: 1.6rem;
    line-height: 1;
}
.hero-stat span {
    display: block;
    margin-top: 0.45rem;
    color: var(--ink-soft);
    font-size: 0.9rem;
}

.section { margin-top: 1.35rem; }
.section.compact { margin-top: 0.95rem; }
.jump-panel,
.pack-hero-strip {
    display: grid;
    gap: 1rem;
    padding: 1rem 1.05rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.78);
    box-shadow: 0 8px 22px rgba(19, 40, 58, 0.045);
}
.jump-panel { grid-template-columns: 1fr; }
.jump-copy {
    display: grid;
    align-content: start;
    gap: 0.35rem;
}
.jump-copy h2,
.pack-hero-strip h2 { margin: 0; font-size: clamp(1.55rem, 2.6vw, 2.15rem); }
.jump-copy p,
.pack-hero-strip p:last-child { margin: 0.55rem 0 0; color: var(--ink-soft); }
.section-intro {
    display: grid;
    gap: 0.85rem;
}
.section-intro p {
    margin: 0;
    max-width: 64ch;
    color: var(--ink-soft);
}
.jump-links {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
}
.jump-link,
.family-switch a {
    display: grid;
    gap: 0.22rem;
    padding: 0.9rem 1rem;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.74);
    color: inherit;
    text-decoration: none;
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}
.jump-link strong { font-size: 0.97rem; }
.jump-link span { color: var(--ink-soft); font-size: 0.88rem; line-height: 1.45; }
.jump-link:hover,
.family-switch a:hover {
    transform: translateY(-1px);
    border-color: rgba(66, 168, 74, 0.32);
    box-shadow: 0 10px 24px rgba(19, 40, 58, 0.06);
}
.jump-link.accent {
    background:
        radial-gradient(circle at right top, rgba(66, 168, 74, 0.12), transparent 9rem),
        rgba(255, 255, 255, 0.82);
}
.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.8rem;
}
.section-head h2 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.4rem); }
.section-head p { max-width: 56ch; margin: 0; color: var(--ink-soft); }

.catalog-toolbar {
    display: grid;
    gap: 1rem;
    margin-bottom: 1rem;
}
.toolbar-top {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    justify-content: space-between;
    gap: 1rem;
}
.filter-clusters {
    display: grid;
    gap: 0.9rem;
}
.filter-cluster {
    display: grid;
    gap: 0.45rem;
}
.filter-label {
    color: var(--ink-soft);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.catalog-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin: -0.15rem 0 1rem;
    color: var(--ink-soft);
}
.catalog-meta p { margin: 0; font-weight: 700; }
.catalog-meta a {
    color: var(--brand-green-deep);
    font-weight: 700;
    text-decoration: none;
}
.search-field {
    display: grid;
    gap: 0.45rem;
    min-width: min(100%, 360px);
    color: var(--ink-soft);
    font-size: 0.88rem;
    font-weight: 700;
}
.search-field input {
    min-height: 3rem;
    width: min(100%, 360px);
    padding: 0.8rem 1rem;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.82);
    color: var(--ink);
    font: inherit;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}
.search-field input:focus {
    outline: 2px solid rgba(66, 168, 74, 0.24);
    outline-offset: 2px;
    border-color: rgba(66, 168, 74, 0.32);
}
.filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}
.filter-chip {
    min-height: 2.65rem;
    padding: 0.55rem 0.95rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--ink);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}
.filter-chip:hover {
    transform: translateY(-1px);
    border-color: rgba(66, 168, 74, 0.34);
}
.filter-chip.is-active {
    border-color: rgba(66, 168, 74, 0.28);
    background: rgba(66, 168, 74, 0.12);
    color: var(--brand-green-deep);
}

.status-grid, .flow-grid {
    display: grid;
    gap: 1rem;
    margin-top: 0.75rem;
}
.status-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.flow-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.status-block, .flow-step {
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.76);
}
.status-block h3 { margin: 0 0 0.4rem; font-size: 1rem; }
.status-block p, .status-block ul, .flow-step p { margin: 0; color: var(--ink-soft); }
.status-block ul { padding-left: 1rem; }
.flow-step strong {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.86rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--brand-green-deep);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1rem;
}
.detail-grid,
.resource-grid,
.download-grid,
.gallery-grid,
.nav-card-grid {
    display: grid;
    gap: 1rem;
}
.detail-grid { grid-template-columns: 1.1fr 0.9fr; }
.resource-grid,
.download-grid,
.gallery-grid,
.nav-card-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.card {
    grid-column: span 12;
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    gap: 0.9rem;
    min-height: 100%;
    padding: 1rem 1rem 1.05rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(253, 250, 244, 0.92));
    box-shadow: 0 8px 22px rgba(19, 40, 58, 0.045);
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}
.card:hover,
.download-card:hover,
.gallery-card:hover,
.nav-card:hover,
.detail-panel:hover {
    transform: translateY(-2px);
    border-color: rgba(66, 168, 74, 0.22);
    box-shadow: 0 14px 30px rgba(19, 40, 58, 0.07);
}
.card.span-6, .card.span-4 { grid-column: span 12; }
.card-header { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.card-header h3 { margin: 0; font-size: 1.25rem; }
.card-header p { margin: 0.28rem 0 0; color: var(--ink-soft); font-size: 0.93rem; max-width: 36ch; }
.tag {
    display: inline-flex;
    align-items: center;
    min-height: 2rem;
    padding: 0.2rem 0.7rem;
    border-radius: 999px;
    border: 1px solid rgba(66, 168, 74, 0.22);
    background: rgba(66, 168, 74, 0.09);
    color: var(--brand-green-deep);
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.preview {
    overflow: hidden;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(245, 239, 228, 0.85));
    min-height: 208px;
}
.preview.dark {
    background:
        radial-gradient(circle at 70% 20%, rgba(66, 168, 74, 0.18), transparent 16rem),
        linear-gradient(180deg, #173245, #102433);
    border-color: rgba(255, 255, 255, 0.08);
}
.preview img { width: 100%; height: 100%; object-fit: cover; }
.preview-frame, .preview-doc { padding: 1rem; height: 100%; }
.preview-ui { display: grid; gap: 0.8rem; height: 100%; }
.preview-window {
    display: grid;
    grid-template-rows: auto 1fr;
    min-height: 100%;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(19, 40, 58, 0.08);
    background: #fffdf9;
}
.window-bar {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.55rem 0.7rem;
    background: #f4ede0;
    border-bottom: 1px solid rgba(19, 40, 58, 0.08);
}
.window-dot { width: 0.58rem; height: 0.58rem; border-radius: 999px; background: rgba(19, 40, 58, 0.18); }
.window-body {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 0.9rem;
    padding: 1rem;
}
.mini-block, .mini-line, .mini-chip, .mini-card { border-radius: 12px; }
.mini-block {
    min-height: 100%;
    background:
        linear-gradient(180deg, rgba(66, 168, 74, 0.14), rgba(66, 168, 74, 0.04)),
        linear-gradient(180deg, #f7f4ee, #fefdf9);
    border: 1px solid rgba(66, 168, 74, 0.16);
}
.mini-stack { display: grid; gap: 0.55rem; }
.mini-line { height: 0.72rem; background: rgba(19, 40, 58, 0.1); }
.mini-line.short { width: 58%; }
.mini-chip {
    display: inline-flex;
    height: 1.75rem;
    width: fit-content;
    padding: 0 0.75rem;
    align-items: center;
    background: rgba(66, 168, 74, 0.12);
    border: 1px solid rgba(66, 168, 74, 0.16);
}
.mini-card-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.55rem; }
.mini-card {
    min-height: 4.3rem;
    background: rgba(19, 40, 58, 0.05);
    border: 1px solid rgba(19, 40, 58, 0.07);
}
.paper-sheet {
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    gap: 0.9rem;
    min-height: 100%;
    padding: 1.1rem;
    border-radius: 14px;
    background: #fffefb;
    border: 1px solid rgba(19, 40, 58, 0.08);
    box-shadow: 0 12px 30px rgba(19, 40, 58, 0.08);
}
.paper-mark { display: flex; align-items: center; gap: 0.55rem; }
.paper-mark img { width: 1.8rem; height: 1.8rem; }
.paper-rule { height: 2px; background: linear-gradient(90deg, rgba(66, 168, 74, 0.6), rgba(66, 168, 74, 0)); }
.paper-footer { display: flex; justify-content: space-between; gap: 1rem; color: var(--ink-soft); font-size: 0.8rem; }

.asset-links { display: flex; flex-wrap: wrap; gap: 0.65rem; }
.asset-links a { min-height: 2.35rem; padding: 0.5rem 0.8rem; font-size: 0.92rem; }
.card-note-summary {
    margin: -0.1rem 0 0;
    color: var(--ink-soft);
    font-size: 0.93rem;
}
.catalog-empty {
    margin: 1rem 0 0;
    padding: 1rem 1.1rem;
    border: 1px dashed rgba(19, 40, 58, 0.18);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.74);
    color: var(--ink-soft);
}

.detail-panel,
.download-card,
.gallery-card,
.nav-card {
    padding: 1.1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 252, 246, 0.92));
    box-shadow: 0 8px 22px rgba(19, 40, 58, 0.045);
}
.detail-panel h3,
.download-card h3,
.gallery-card h3,
.nav-card h3 { margin: 0; font-size: 1.2rem; }
.detail-panel p,
.download-card p,
.gallery-card p,
.nav-card p { margin: 0.45rem 0 0; color: var(--ink-soft); }
.detail-stack {
    display: grid;
    gap: 0.85rem;
}
.family-switch {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin: 0 0 0.9rem;
}
.family-switch a {
    display: inline-flex;
    align-items: center;
    min-height: 2.6rem;
    padding: 0.65rem 0.95rem;
    border-radius: 999px;
    font-weight: 700;
}
.family-switch a.is-current {
    border-color: rgba(66, 168, 74, 0.26);
    background: rgba(66, 168, 74, 0.12);
    color: var(--brand-green-deep);
}
.pack-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
}
.pack-stat {
    padding: 0.95rem 1rem;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.74);
}
.pack-stat strong {
    display: block;
    font-size: 1.45rem;
    line-height: 1;
}
.pack-stat span {
    display: block;
    margin-top: 0.35rem;
    color: var(--ink-soft);
    font-size: 0.9rem;
}
.detail-list,
.rule-list {
    margin: 0;
    padding-left: 1rem;
    color: var(--ink-soft);
}
.rule-list li + li,
.detail-list li + li { margin-top: 0.35rem; }
.download-card,
.gallery-card,
.nav-card { grid-column: span 12; }
.download-card .asset-links,
.gallery-card .asset-links,
.nav-card .asset-links { margin-top: 0.9rem; }
.gallery-card figure {
    margin: 0.9rem 0 0;
    overflow: hidden;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(245,239,228,0.85));
}
.gallery-card img {
    width: 100%;
    height: auto;
}
.split-callout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}
.callout {
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.8);
}
.callout strong {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.92rem;
}
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.85rem;
}
.table th,
.table td {
    padding: 0.8rem 0.75rem;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}
.table th {
    color: var(--ink-soft);
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.lead {
    font-size: 1.06rem;
    color: var(--ink-soft);
}
.page-footer {
    margin-top: 1.4rem;
}

.footer-note {
    padding: 1.1rem 1.2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: rgba(18, 38, 53, 0.94);
    color: rgba(247, 251, 245, 0.88);
}
.footer-note strong { color: #ffffff; }

@media (min-width: 860px) {
    .card.span-6 { grid-column: span 6; }
    .card.span-4 { grid-column: span 4; }
    .download-card.span-4,
    .gallery-card.span-4,
    .nav-card.span-4 { grid-column: span 4; }
    .download-card.span-6,
    .gallery-card.span-6,
    .nav-card.span-6 { grid-column: span 6; }
}

@media (max-width: 1080px) {
    .hero-grid, .status-grid, .flow-grid, .detail-grid, .split-callout, .jump-panel, .pack-stats { grid-template-columns: 1fr; }
    .window-body { grid-template-columns: 1fr; }
    .catalog-toolbar { align-items: stretch; }
    .jump-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 780px) {
    .page-shell { width: min(var(--max-width), calc(100vw - 1rem)); padding-top: 0.7rem; }
    .masthead {
        position: static;
        flex-direction: column;
        align-items: stretch;
        border-radius: 24px;
    }
    .masthead-nav { justify-content: flex-start; }
    .hero { border-radius: 24px; }
    .section-head { align-items: start; flex-direction: column; }
    .jump-links { grid-template-columns: 1fr; }
}

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