.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(8px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1rem;
    height: var(--header-height);
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    flex-shrink: 0;
}

.header-brand:hover {
    color: var(--color-text-bright);
}

.brand-icon {
    font-size: 1.3rem;
}

.brand-logo {
    height: 2rem;
    width: auto;
    border-radius: var(--border-radius-sm);
    object-fit: contain;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 60;
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 1px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.hamburger-line.hamburger-open:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger-line.hamburger-open:nth-child(2) {
    opacity: 0;
}

.hamburger-line.hamburger-open:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    background: none;
    border: none;
    color: var(--color-text-dim);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    padding: 0.4rem 0.75rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: color 0.2s ease, background-color 0.2s ease;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--color-text);
    background-color: var(--color-border-dim);
}

.nav-link.nav-active {
    color: var(--color-accent);
    background-color: var(--color-border-dim);
}

@media (max-width: 767px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        padding: 0.5rem 0;
        gap: 0;
    }

    .nav-links.nav-open {
        display: flex;
    }

    .nav-link {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
        border-radius: 0;
        text-align: left;
        width: 100%;
    }

    .nav-link:hover {
        background-color: var(--color-border-dim);
    }
}

.hero {
    padding: 1.25rem 0 0.75rem;
}

.hero-layout {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.hero-main {
    flex: 1;
    min-width: 0;
}

.hero-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--color-text-bright);
}

.hero-tagline {
    font-size: 1rem;
    color: var(--color-accent);
    font-weight: 500;
}

.hero-arch-box {
    flex: 0 0 340px;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-dim);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    color: var(--color-text-dim);
    line-height: 1.6;
    margin-top: 0.25rem;
}

.hero-arch-box a {
    color: var(--color-accent);
}

.hero-arch-box p {
    margin: 0;
}

@media (max-width: 767px) {
    .hero-layout {
        flex-direction: column;
    }
    .hero-arch-box {
        flex: auto;
    }
    .hero-title {
        font-size: 1.4rem;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-bg);
    padding: 0.6rem 1.5rem;
    font-size: 0.95rem;
}

.btn-primary:hover {
    background-color: var(--color-text-bright);
    color: var(--color-bg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
    padding: 0.6rem 1.5rem;
    font-size: 0.95rem;
}

.btn-secondary:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

.btn-sm {
    padding: 0.35rem 0.85rem;
    font-size: 0.82rem;
}

.demo-category {
    margin-bottom: 2rem;
}

.demo-category-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-accent);
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--color-border-dim);
    margin-bottom: 0.75rem;
}

.demo-grid-section {
    padding: 0.75rem 0;
}

.category-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.category-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.category-heading {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-accent);
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--color-border-dim);
}

.section-heading {
    font-size: 1.5rem;
    color: var(--color-text-bright);
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border-dim);
}

.demo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

@media (max-width: 767px) {
    .demo-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .demo-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.demo-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.demo-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.demo-card-header .card-title {
    margin-bottom: 0;
}

.demo-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.tag {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.1rem 0.45rem;
    border-radius: var(--border-radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.tag-ide { background-color: rgba(137, 180, 250, 0.15); color: var(--color-accent); }
.tag-compiler { background-color: rgba(250, 179, 135, 0.15); color: var(--color-peach); }
.tag-interpreter { background-color: rgba(203, 166, 247, 0.15); color: var(--color-mauve); }
.tag-debugger { background-color: rgba(148, 226, 213, 0.15); color: var(--ctp-teal); }
.tag-vm { background-color: rgba(148, 226, 213, 0.15); color: var(--ctp-teal); }
.tag-lang { background-color: rgba(245, 194, 231, 0.15); color: var(--ctp-pink); }
.tag-docs { background-color: rgba(166, 227, 161, 0.15); color: var(--color-green); }
.tag-default { background-color: rgba(147, 153, 178, 0.15); color: var(--color-text-dim); }

.card-link-current {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    font-style: italic;
}

.overview-section {
    padding: 0.75rem 0 0.5rem;
}

.overview-text {
    font-size: 1rem;
    color: var(--color-text-dim);
    max-width: 720px;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.overview-facts {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-bottom: 0;
}

@media (max-width: 767px) {
    .overview-facts {
        grid-template-columns: repeat(2, 1fr);
    }
}

.fact-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-dim);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    text-align: center;
}

.fact-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 0.15rem;
}

.fact-label {
    font-size: 0.72rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.overview-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.overview-btn {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--color-accent);
    border-radius: var(--border-radius);
    background-color: transparent;
    color: var(--color-accent);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.overview-btn:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

.placeholder {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--color-text-dim);
    font-style: italic;
}

.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
    border-color: var(--color-accent);
    transform: translateY(-1px);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-bright);
    margin-bottom: 0.5rem;
}

.card-desc {
    font-size: 0.9rem;
    color: var(--color-text-dim);
    line-height: 1.5;
}

.card-links {
    display: flex;
    gap: 0.75rem;
}

.card-footer {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-top: 0.75rem;
}

.demo-card-badge {
    height: 48px;
    width: auto;
    object-fit: contain;
    opacity: 0.85;
    flex-shrink: 0;
}

@media (max-width: 767px) {
    .demo-card-badge {
        height: 36px;
    }
}

.card-link {
    font-size: 0.85rem;
    color: var(--color-accent);
    text-decoration: none;
}

.card-link:hover {
    text-decoration: underline;
}

.badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-active {
    background-color: rgba(166, 227, 161, 0.15);
    color: var(--color-green);
}

.badge-wip {
    background-color: rgba(249, 226, 175, 0.15);
    color: var(--color-yellow);
}

.badge-testing {
    background-color: rgba(137, 220, 235, 0.15);
    color: var(--ctp-sky);
}

.badge-design {
    background-color: rgba(203, 166, 247, 0.15);
    color: var(--color-mauve);
}

.badge-longterm {
    background-color: rgba(147, 153, 178, 0.15);
    color: var(--color-text-dim);
}

.badge-beta {
    background-color: rgba(249, 226, 175, 0.15);
    color: var(--color-yellow);
}

.badge-planned {
    background-color: rgba(147, 153, 178, 0.15);
    color: var(--color-text-dim);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th,
.data-table td {
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border-dim);
}

.data-table th {
    color: var(--color-text-bright);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background-color: var(--color-surface);
    position: sticky;
    top: var(--header-height);
}

.data-table tbody tr:nth-child(even) {
    background-color: var(--color-surface);
}

.data-table tbody tr:hover {
    background-color: var(--color-border-dim);
}

.data-table code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background-color: var(--color-border-dim);
    padding: 0.1rem 0.35rem;
    border-radius: var(--border-radius-sm);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

@media (max-width: 767px) {
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

.site-footer {
    border-top: 1px solid var(--color-border);
    background-color: var(--color-surface);
    flex-shrink: 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
}

.footer-item {
    color: var(--color-text-dim);
}

.footer-dim {
    color: var(--color-border);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.footer-link {
    color: var(--color-accent);
    text-decoration: none;
}

.footer-link:hover {
    text-decoration: underline;
}

.footer-sep {
    color: var(--color-border);
}

@media (max-width: 767px) {
    .footer-inner {
        justify-content: center;
        text-align: center;
    }
}

.about-title {
    font-size: 2rem;
    color: var(--color-text-bright);
    margin-bottom: 0.75rem;
}

.about-intro-row {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 2.5rem;
    align-items: start;
}

.about-intro-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: sticky;
    top: 5rem;
}

.about-intro-text {
    font-size: 1rem;
    color: var(--color-text-dim);
    line-height: 1.8;
}

.about-intro-text p {
    margin: 0 0 1.25rem 0;
}

.about-intro-text p:last-child {
    margin-bottom: 0;
}

.about-intro-text a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
}

.about-intro-text a:hover {
    text-decoration: underline;
}

@media (max-width: 1023px) {
    .about-intro-row {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-intro-links {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .about-intro-links {
        grid-template-columns: 1fr;
    }
}

.about-card {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1rem;
    text-decoration: none;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.about-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.about-card-icon {
    width: 56px;
    height: 56px;
    min-width: 56px;
    object-fit: contain;
    border-radius: var(--border-radius-sm);
}

.about-card-body {
    text-align: left;
    min-width: 0;
}

.about-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-bright);
    margin: 0 0 0.25rem 0;
}

.about-card-desc {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    line-height: 1.4;
    margin: 0 0 0.25rem 0;
}

.about-card-cta {
    font-size: 0.8rem;
    color: var(--color-accent);
    font-weight: 500;
}

.status-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.15rem 0.55rem;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.status-green {
    background-color: rgba(166, 227, 161, 0.15);
    color: var(--color-green);
}

.status-yellow {
    background-color: rgba(249, 226, 175, 0.15);
    color: var(--color-yellow);
}

.status-orange {
    background-color: rgba(250, 179, 135, 0.15);
    color: var(--color-peach);
}

.status-red {
    background-color: rgba(243, 139, 168, 0.15);
    color: var(--color-red);
}

.status-neutral {
    background-color: rgba(147, 153, 178, 0.15);
    color: var(--color-text-dim);
}

.status-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.status-table {
    font-size: 0.85rem;
}

.status-group-row {
    border-top: 2px solid var(--color-border);
}

.status-group-row:first-child {
    border-top: none;
}

.status-group-cell {
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    padding: 0.5rem 0.75rem;
    background-color: var(--color-surface);
}

.status-col {
    text-align: center;
    width: 5rem;
}

.status-cell {
    text-align: center;
    vertical-align: middle;
}

.status-repo code {
    font-weight: 600;
    color: var(--color-accent);
    font-size: 0.82rem;
}

.status-desc {
    font-size: 0.82rem;
    color: var(--color-text-dim);
    max-width: 18rem;
}

.status-link {
    font-size: 1rem;
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.15s ease;
}

.status-link:hover {
    opacity: 1;
}

.status-dash {
    color: var(--color-border);
}

.status-issues-link {
    text-decoration: none;
    color: var(--color-text);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
}

.status-issues-link:hover {
    color: var(--color-accent);
}

.status-loading {
    color: var(--color-text-dim);
    font-style: italic;
}

.gaps-section {
    margin-top: 2rem;
}

.gaps-grid {
    border: 1px solid var(--color-border-dim);
    font-size: 0.9rem;
}

.gaps-grid-header {
    display: grid;
    grid-template-columns: 5rem 10rem 1fr;
    background-color: var(--color-surface);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-bright);
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--color-border-dim);
}

.gaps-grid-row {
    display: grid;
    grid-template-columns: 5rem 10rem 1fr;
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--color-border-dim);
}

.gaps-grid-row:nth-child(even) {
    background-color: var(--color-surface);
}

.gaps-grid-row:hover {
    background-color: var(--color-border-dim);
}

.gaps-grid-priority {
    display: flex;
    align-items: center;
    justify-content: center;
}

.gaps-grid-gap {
    display: flex;
    align-items: center;
    font-weight: 600;
}

.gaps-grid-details {
    display: flex;
    align-items: center;
    color: var(--color-text-dim);
}

.demos-intro {
    font-size: 1rem;
    color: var(--color-text-dim);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.demos-filter-bar {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.demos-search-input {
    flex: 1;
    min-width: 200px;
    padding: 0.5rem 0.75rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text);
    outline: none;
    transition: border-color 0.2s ease;
}

.demos-search-input:focus {
    border-color: var(--color-accent);
}

.demos-search-input::placeholder {
    color: var(--color-text-dim);
}

.demos-select {
    padding: 0.5rem 0.75rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text);
    outline: none;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.demos-select:focus {
    border-color: var(--color-accent);
}

.demos-count {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    margin-bottom: 1.25rem;
}

.demos-count-num {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--color-accent);
}

.demos-count-total {
    font-family: var(--font-mono);
    font-weight: 600;
}

.demos-empty {
    text-align: center;
    padding: 3rem 1rem;
}

.demos-empty-text {
    font-size: 1rem;
    color: var(--color-text-dim);
    margin-bottom: 1rem;
}

.demos-clear-btn {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.4rem 1rem;
    border: 1px solid var(--color-accent);
    border-radius: var(--border-radius);
    background-color: transparent;
    color: var(--color-accent);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.demos-clear-btn:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

@media (max-width: 767px) {
    .demos-filter-bar {
        flex-direction: column;
    }

    .demos-search-input {
        min-width: unset;
    }
}

@media (max-width: 767px) {
    .status-desc {
        max-width: none;
        font-size: 0.78rem;
    }

    .status-col {
        width: auto;
    }
}

/* ── Toolchain ── */

.toolchain-intro {
    color: var(--color-text-dim);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    max-width: 72ch;
}

.toolchain-section {
    margin-bottom: 2.5rem;
}

.toolchain-sections-container::after {
    content: "";
    display: table;
    clear: both;
}

.toolchain-section-float {
    width: 60%;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border-dim);
}

.toolchain-section-float:last-child {
    border-bottom: none;
}

.toolchain-section-left {
    float: left;
    clear: both;
}

.toolchain-section-right {
    float: right;
    clear: both;
}

@media (max-width: 767px) {
    .toolchain-section-left,
    .toolchain-section-right {
        float: none;
        width: 100%;
    }
}

.toolchain-section-title {
    font-size: 1.4rem;
    color: var(--color-text-bright);
    margin-bottom: 0.4rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.4rem;
}

.toolchain-section-desc {
    color: var(--color-text-dim);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
}

@media (max-width: 767px) {
    .tool-grid {
        grid-template-columns: 1fr;
    }
}

.tool-card {
    display: flex;
    flex-direction: column;
}

.tool-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.tool-card-badges {
    display: flex;
    gap: 0.4rem;
    flex-shrink: 0;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.tool-badge-rust {
    background-color: rgba(222, 98, 42, 0.15);
    color: #de622a;
    border: 1px solid rgba(222, 98, 42, 0.3);
}

.tool-badge-c {
    background-color: rgba(85, 130, 200, 0.15);
    color: #5582c8;
    border: 1px solid rgba(85, 130, 200, 0.3);
}

.tool-badge-asm {
    background-color: rgba(166, 130, 200, 0.15);
    color: #a682c8;
    border: 1px solid rgba(166, 130, 200, 0.3);
}

.tool-badge-mixed {
    background-color: rgba(180, 142, 100, 0.15);
    color: #b48e64;
    border: 1px solid rgba(180, 142, 100, 0.3);
}

.tool-badge-docs {
    background-color: rgba(130, 170, 130, 0.15);
    color: #82aa82;
    border: 1px solid rgba(130, 170, 130, 0.3);
}

.tool-badge-host {
    background-color: rgba(137, 180, 250, 0.15);
    color: #89b4fa;
    border: 1px solid rgba(137, 180, 250, 0.3);
}

.tool-badge-cor24 {
    background-color: rgba(166, 227, 161, 0.15);
    color: #a6e3a1;
    border: 1px solid rgba(166, 227, 161, 0.3);
}

.tool-badge-emu {
    background-color: rgba(249, 226, 175, 0.15);
    color: #f9e2af;
    border: 1px solid rgba(249, 226, 175, 0.3);
}

.tool-badge-docs {
    background-color: rgba(130, 170, 130, 0.15);
    color: #82aa82;
    border: 1px solid rgba(130, 170, 130, 0.3);
}

/* ── Pipeline Diagrams ── */

.pipeline-intro {
    margin-bottom: 1.25rem;
}

.pipeline-intro p {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--color-text);
    margin: 0;
}

.pipeline-group {
    margin-bottom: 1.5rem;
}

.pipeline-group-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-accent);
    margin: 0 0 0.3rem;
}

.pipeline-group-desc {
    font-size: 0.82rem;
    color: var(--color-text-dim);
    margin: 0 0 0.75rem;
}

.pipeline-cards {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.pipeline-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 0.85rem 1rem;
}

.pipeline-card h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-bright);
    margin: 0 0 0.5rem;
}

.pipeline-card-detail {
    font-size: 0.78rem;
    color: var(--color-text-dim);
    line-height: 1.5;
    margin: 0.5rem 0 0;
}

/* Pipeline flow: process steps + file artifacts */

.pipe-flow {
    display: flex;
    align-items: center;
    gap: 0;
    flex-wrap: wrap;
    padding: 0.25rem 0;
}

.pipe-step {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    flex-shrink: 0;
}

.pipe-step-label {
    font-size: 0.78rem;
    font-family: var(--font-mono);
    color: var(--color-green);
    font-weight: 600;
    background-color: rgba(166, 227, 161, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 0.35rem;
    border: 1px solid rgba(166, 227, 161, 0.2);
    white-space: nowrap;
}

.pipe-step-note {
    font-size: 0.62rem;
    color: var(--color-text-dim);
    font-style: italic;
}

.pipe-file {
    font-size: 0.78rem;
    font-family: var(--font-mono);
    color: var(--color-yellow);
    background-color: rgba(249, 226, 175, 0.08);
    padding: 0.2rem 0.45rem;
    border-radius: 0.25rem;
    border: 1px dashed rgba(249, 226, 175, 0.3);
    white-space: nowrap;
}

.pipe-arrow {
    font-size: 1rem;
    color: var(--color-text-dim);
    margin: 0 0.3rem;
    flex-shrink: 0;
}

@media (max-width: 767px) {
    .pipe-flow {
        gap: 0;
    }

    .pipe-arrow {
        margin: 0 0.15rem;
        font-size: 0.85rem;
    }

    .pipe-step-label {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
    }

    .pipe-file {
        font-size: 0.7rem;
        padding: 0.15rem 0.35rem;
    }
}

/* ── BASIC Stack Image ── */

.toolchain-diagram-wrap {
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    max-height: 80vh;
    overflow: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background: var(--color-surface0);
}

.toolchain-diagram-img {
    width: 1400px;
    height: auto;
    min-width: 100%;
}

.basic-stack-container {
    margin-top: 0.75rem;
}

.basic-stack-img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

/* ── tc24r Constraints ── */

.tc24r-constraints {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1rem 1.25rem;
}

.tc24r-constraints ul {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--color-text);
    font-size: 0.88rem;
    line-height: 1.8;
}

.tc24r-constraints li::marker {
    color: var(--color-accent);
}

/* ── Implementation Details ── */

.impl-detail {
    margin-bottom: 0.85rem;
}

.impl-detail h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-green);
    margin: 0 0 0.25rem;
}

.impl-detail p {
    font-size: 0.84rem;
    color: var(--color-text);
    line-height: 1.6;
    margin: 0;
}

.impl-detail code {
    font-size: 0.82rem;
    background-color: rgba(166, 227, 161, 0.1);
    padding: 0.1rem 0.35rem;
    border-radius: 0.25rem;
}

/* ── Language Comparison Table ── */

.lang-intro {
    color: var(--color-text-dim);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    max-width: 72ch;
}

.lang-table-scroll {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-surface);
}

.lang-table {
    border-collapse: collapse;
    width: max-content;
    min-width: 100%;
}

.lang-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
}

.lang-th {
    padding: 0.6rem 0.8rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: left;
    background-color: var(--color-surface-alt, rgba(49, 50, 68, 0.8));
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
    color: var(--color-text-bright);
}

.lang-th-label {
    position: sticky;
    left: 0;
    z-index: 2;
    background-color: var(--color-surface-alt, rgba(49, 50, 68, 0.9));
    min-width: 6rem;
    border-right: 2px solid var(--color-border);
}

.lang-th-code {
    min-width: 10rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.lang-col-collapsed {
    width: 3rem !important;
    min-width: 3rem !important;
    max-width: 3rem !important;
    overflow: hidden;
    text-overflow: clip;
    white-space: nowrap;
    padding-left: 0.3rem;
    padding-right: 0.3rem;
    font-size: 0.65rem;
    text-align: center;
}

.lang-col-expandable {
    cursor: pointer;
    user-select: none;
}

.lang-col-expandable:hover {
    background-color: rgba(137, 180, 250, 0.1);
}

.lang-col-toggle {
    margin-right: 0.3rem;
    font-size: 0.6rem;
    opacity: 0.7;
}

.lang-td-label {
    padding: 0.6rem 0.8rem;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-accent);
    border-bottom: 1px solid var(--color-border-dim);
    border-right: 2px solid var(--color-border);
    position: sticky;
    left: 0;
    z-index: 1;
    background-color: var(--color-surface);
}

.lang-td-code {
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--color-border-dim);
    white-space: pre;
    font-size: 0.82rem;
}

.lang-td-code code {
    font-family: var(--font-mono);
    color: var(--color-text);
    background: none;
    padding: 0;
    font-size: inherit;
}

.lang-td-code.lang-col-collapsed {
    padding: 0.4rem 0.2rem;
    text-align: center;
}

/* ── Language Overview Table ── */

.lang-overview {
    margin-bottom: 2.5rem;
}

.lang-overview h2 {
    font-size: 1.3rem;
    color: var(--color-text-bright);
    margin-bottom: 0.75rem;
}

.lang-overview-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.lang-overview-table th {
    padding: 0.5rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-align: left;
    background-color: var(--color-surface-alt, rgba(49, 50, 68, 0.8));
    color: var(--color-text-bright);
    border-bottom: 1px solid var(--color-border);
}

.lang-overview-table td {
    padding: 0.45rem 0.8rem;
    font-size: 0.82rem;
    border-bottom: 1px solid var(--color-border-dim);
    color: var(--color-text);
}

.lang-overview-table tr:last-child td {
    border-bottom: none;
}

.lang-overview-name {
    font-weight: 600;
    color: var(--color-accent);
    white-space: nowrap;
    width: 7rem;
}

.lang-overview-inspired {
    color: var(--color-text-dim);
    font-style: italic;
    white-space: nowrap;
    width: 6rem;
}

.lang-overview-desc {
    color: var(--color-text-dim);
    line-height: 1.4;
}

.lang-anchor {
    color: inherit;
    text-decoration: none;
}

.lang-anchor:hover {
    text-decoration: underline;
}

.lang-link-btn {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    font: inherit;
    color: var(--color-accent);
    cursor: pointer;
    text-decoration: none;
}

.lang-link-btn:hover {
    text-decoration: underline;
}

/* ── Language Detail Sections ── */

.lang-details {
    margin-top: 3rem;
}

.lang-details h2 {
    font-size: 1.3rem;
    color: var(--color-text-bright);
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.4rem;
}

.lang-details::after {
    content: "";
    display: table;
    clear: both;
}

.lang-detail-section {
    width: 60%;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border-dim);
    scroll-margin-top: 4rem;
}

.lang-detail-section:last-child {
    border-bottom: none;
}

.lang-detail-left {
    float: left;
    clear: both;
}

.lang-detail-right {
    float: right;
    clear: both;
}

@media (max-width: 767px) {
    .lang-detail-left,
    .lang-detail-right {
        float: none;
        width: 100%;
    }
}

.lang-detail-title {
    font-size: 1.1rem;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.lang-detail-inspired-by {
    color: var(--color-text-dim);
    font-weight: 400;
    font-style: italic;
}

.lang-detail-body p {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--color-text);
    margin-bottom: 0.6rem;
}

.lang-detail-pros-cons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 0.75rem;
}

.lang-detail-pros,
.lang-detail-cons {
    font-size: 0.82rem;
}

.lang-detail-pros strong,
.lang-detail-cons strong {
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lang-detail-pros {
    color: var(--color-green);
}

.lang-detail-pros ul {
    list-style: disc;
    padding-left: 1.2rem;
    margin: 0;
}

.lang-detail-cons {
    color: var(--color-red);
}

.lang-detail-cons ul {
    list-style: disc;
    padding-left: 1.2rem;
    margin: 0;
}

@media (max-width: 767px) {
    .lang-detail-pros-cons {
        grid-template-columns: 1fr;
    }
}

/* ── APL Glyph Table ── */

.lang-glyph-section {
    margin-top: 1rem;
}

.lang-glyph-section h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 0.4rem;
}

.lang-glyph-note {
    font-size: 0.8rem;
    color: var(--color-text-dim);
    line-height: 1.5;
    margin-bottom: 0.75rem;
}

.lang-glyph-scroll {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.lang-glyph-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.lang-glyph-table th {
    padding: 0.4rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-align: left;
    background-color: var(--color-surface-alt, rgba(49, 50, 68, 0.8));
    color: var(--color-text-bright);
    border-bottom: 1px solid var(--color-border);
}

.lang-glyph-table td {
    padding: 0.3rem 0.6rem;
    border-bottom: 1px solid var(--color-border-dim);
    color: var(--color-text);
}

.lang-glyph-table tr:last-child td {
    border-bottom: none;
}

.lang-glyph-char {
    font-size: 1.1rem;
    color: var(--color-accent);
    text-align: center;
    letter-spacing: 0.05em;
}

.eco-section {
    margin-top: 2rem;
}

.eco-intro {
    color: var(--color-text-dim);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.eco-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

@media (max-width: 767px) {
    .eco-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .eco-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.eco-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-dim);
    border-radius: var(--border-radius);
    padding: 1rem;
}

.eco-card-title {
    font-size: 1rem;
    color: var(--color-text-bright);
    margin-bottom: 0.5rem;
}

.eco-card-desc {
    font-size: 0.9rem;
    color: var(--color-text-dim);
    line-height: 1.6;
}

.eco-card a {
    color: var(--color-accent);
}

.eco-card code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background-color: var(--color-border-dim);
    padding: 0.1rem 0.35rem;
    border-radius: var(--border-radius-sm);
}

.eco-about {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.eco-about-p {
    color: var(--color-text-dim);
    line-height: 1.6;
    font-size: 0.95rem;
}

.eco-about a {
    color: var(--color-accent);
}

.dep-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (max-width: 767px) {
    .dep-grid {
        grid-template-columns: 1fr;
    }
}

.dep-block {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-dim);
    border-radius: var(--border-radius);
    padding: 0.75rem;
}

.dep-block-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-bright);
    margin-bottom: 0.6rem;
}

.dep-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.dep-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    flex-wrap: wrap;
}

.dep-node code {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.15rem 0.4rem;
    border-radius: var(--border-radius-sm);
    white-space: nowrap;
}

.dep-blue .dep-node code {
    background-color: rgba(137, 180, 250, 0.15);
    color: var(--ctp-blue);
}

.dep-green .dep-node code {
    background-color: rgba(166, 227, 161, 0.15);
    color: var(--ctp-green);
}

.dep-mauve .dep-node code {
    background-color: rgba(203, 166, 247, 0.15);
    color: var(--ctp-mauve);
}

.dep-peach .dep-node code {
    background-color: rgba(250, 179, 135, 0.15);
    color: var(--ctp-peach);
}

.dep-yellow .dep-node code {
    background-color: rgba(249, 226, 175, 0.15);
    color: var(--ctp-yellow);
}

.dep-red .dep-node code {
    background-color: rgba(243, 139, 168, 0.15);
    color: var(--ctp-red);
}

.dep-arrow {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--color-text-dim);
    flex-shrink: 0;
}

.dep-arrow-line {
    display: inline-block;
    width: 1rem;
    height: 1px;
    background-color: var(--color-overlay1);
}

.dep-arrow-label {
    font-size: 0.7rem;
    color: var(--color-overlay1);
}

.dep-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.dep-legend-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

.dep-legend-dot {
    display: inline-block;
    width: 0.6rem;
    height: 0.6rem;
    border-radius: 50%;
}

.dep-legend-dot.dep-blue {
    background-color: var(--ctp-blue);
}

.dep-legend-dot.dep-green {
    background-color: var(--ctp-green);
}

.dep-legend-dot.dep-mauve {
    background-color: var(--ctp-mauve);
}

.dep-legend-dot.dep-peach {
    background-color: var(--ctp-peach);
}

.dep-legend-dot.dep-yellow {
    background-color: var(--ctp-yellow);
}

.dep-legend-dot.dep-red {
    background-color: var(--ctp-red);
}

.issue-chart-wrap {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-dim);
    border-radius: var(--border-radius);
    padding: 1rem;
    overflow-x: auto;
}

.issue-chart-svg {
    width: 100%;
    max-width: 720px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.issue-chart-label {
    display: block;
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-dim);
    margin-top: 0.5rem;
}

.issue-chart-label a {
    color: var(--color-accent);
}

.issue-chart-wrap + .issue-chart-wrap {
    margin-top: 1.5rem;
}

.issue-chart-section .eco-intro code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background-color: var(--color-border-dim);
    padding: 0.1rem 0.35rem;
    border-radius: var(--border-radius-sm);
}