.nav-current,
.mobile-nav-link[aria-current="page"] {
    color: var(--gsit-primary) !important;
    background: rgba(0, 102, 255, 0.08);
}

.api-docs-main {
    background:
        linear-gradient(180deg, #f8fafc 0%, #ffffff 18rem, #f6fbff 100%);
}

.api-docs-breadcrumb {
    max-width: 1240px;
    margin: 0 auto;
    padding: 2rem 24px 0;
}

.api-docs-hero {
    position: relative;
    overflow: hidden;
    padding: 1rem 0 5rem;
}

.api-docs-hero::before {
    content: '';
    position: absolute;
    inset: -10% -20% auto;
    height: 100%;
    background:
        radial-gradient(circle at 15% 25%, rgba(0, 102, 255, 0.14), transparent 32%),
        radial-gradient(circle at 78% 18%, rgba(0, 217, 255, 0.12), transparent 28%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
    pointer-events: none;
}

.api-docs-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 102, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 102, 255, 0.03) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.38), transparent 78%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.38), transparent 78%);
    pointer-events: none;
}

.api-docs-hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 2rem;
    align-items: start;
}

.api-docs-hero-copy {
    padding-top: 1.5rem;
}

.api-docs-hero h1 {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: clamp(2.8rem, 6vw, 4.8rem);
    font-weight: 800;
    line-height: 1.04;
    letter-spacing: -0.035em;
    margin: 0 0 1.25rem;
    background: linear-gradient(135deg, var(--gsit-text-dark) 0%, #1d4ed8 48%, #0891b2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.api-docs-lead {
    max-width: 48rem;
    margin: 0;
    font-family: 'IBM Plex Sans', 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
    font-size: 1.08rem;
    line-height: 1.88;
    color: var(--gsit-text-medium);
}

.api-docs-action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0 1.5rem;
}

.api-docs-action-row .btn {
    min-width: 16rem;
}

.api-docs-meta-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.api-docs-meta-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.65rem 0.95rem;
    border: 1px solid rgba(0, 102, 255, 0.1);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.05);
    color: var(--gsit-text-medium);
    font-size: 0.92rem;
    font-weight: 600;
}

.api-docs-summary-card {
    position: relative;
    overflow: hidden;
    padding: 1.75rem;
    border: 1px solid rgba(0, 102, 255, 0.12);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.1);
}

.api-docs-summary-card::before {
    content: '';
    position: absolute;
    inset: auto -12% 72% auto;
    width: 12rem;
    height: 12rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.18) 0%, rgba(0, 217, 255, 0) 70%);
    pointer-events: none;
}

.api-docs-summary-kicker {
    margin: 0 0 0.75rem;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--gsit-primary);
}

.api-docs-summary-card h2 {
    margin: 0;
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1.7rem;
    line-height: 1.15;
    color: var(--gsit-text-dark);
}

.api-docs-summary-text {
    margin: 1rem 0 0;
    color: var(--gsit-text-medium);
    line-height: 1.75;
}

.api-docs-summary-list {
    list-style: none;
    margin: 1.5rem 0 0;
    padding: 0;
    display: grid;
    gap: 1rem;
}

.api-docs-summary-list li {
    display: grid;
    gap: 0.3rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(148, 163, 184, 0.22);
}

.api-docs-summary-list strong {
    font-size: 0.76rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--gsit-text-light);
}

.api-docs-summary-list span {
    color: var(--gsit-text-dark);
    font-weight: 600;
    line-height: 1.6;
}

.api-docs-summary-link {
    width: 100%;
    margin-top: 1.5rem;
}

.api-docs-library,
.api-docs-coverage,
.api-docs-support {
    padding: 0 0 5rem;
}

.api-docs-heading {
    max-width: 1240px;
    margin: 0 auto 3rem;
    padding: 0 24px;
}

.api-docs-card-grid,
.api-docs-coverage-grid {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    gap: 1.5rem;
}

.api-docs-card-grid {
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
}

.api-docs-card,
.api-docs-coming-soon,
.api-docs-coverage-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 1.75rem;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 24px;
    background: #ffffff;
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.06);
}

.api-docs-card-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
}

.api-docs-language-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.78rem;
    border-radius: 10px;
    background: rgba(0, 102, 255, 0.1);
    color: #1d4ed8;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.api-docs-language-pill--muted {
    background: rgba(148, 163, 184, 0.12);
    color: var(--gsit-text-medium);
}

.api-docs-file-badge {
    color: var(--gsit-text-light);
    font-size: 0.88rem;
    font-weight: 600;
}

.api-docs-card h3,
.api-docs-coming-soon h3,
.api-docs-coverage-card h3 {
    margin: 0;
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1.45rem;
    line-height: 1.22;
    color: var(--gsit-text-dark);
}

.api-docs-card-description,
.api-docs-coming-soon p,
.api-docs-coverage-card p {
    margin: 1rem 0 0;
    color: var(--gsit-text-medium);
    line-height: 1.78;
}

.api-docs-card-meta {
    margin: 1.4rem 0;
    padding: 1rem;
    border: 1px solid rgba(0, 102, 255, 0.08);
    border-radius: 16px;
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.9), rgba(255, 255, 255, 1));
    display: grid;
    gap: 0.9rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.api-docs-card-meta div {
    display: grid;
    gap: 0.2rem;
}

.api-docs-card-meta dt {
    font-size: 0.75rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--gsit-text-light);
}

.api-docs-card-meta dd {
    margin: 0;
    color: var(--gsit-text-dark);
    font-weight: 700;
}

.api-docs-topic-list {
    margin: 0 0 1.75rem 1.15rem;
    padding: 0;
    display: grid;
    gap: 0.8rem;
    color: var(--gsit-text-medium);
    line-height: 1.7;
}

.api-docs-card-actions {
    margin-top: auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
}

.api-docs-card-actions .btn {
    min-width: 10rem;
}

.api-docs-card-file {
    display: inline-flex;
    align-items: center;
    color: var(--gsit-text-light);
    font-size: 0.9rem;
    line-height: 1.55;
    word-break: break-word;
}

.api-docs-coming-soon {
    justify-content: center;
    background:
        linear-gradient(180deg, rgba(248, 250, 252, 0.94), rgba(255, 255, 255, 1)),
        linear-gradient(135deg, rgba(0, 102, 255, 0.04), rgba(0, 217, 255, 0.06));
    border-style: dashed;
}

.api-docs-coverage-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.api-docs-coverage-card {
    position: relative;
    overflow: hidden;
}

.api-docs-coverage-index {
    margin: 0;
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.92rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gsit-primary);
}

.api-docs-support-card {
    position: relative;
    overflow: hidden;
    padding: clamp(2rem, 5vw, 3rem);
    border-radius: 28px;
    background: linear-gradient(135deg, #0f172a 0%, #16345d 46%, #0c4a6e 100%);
    box-shadow: 0 28px 56px rgba(15, 23, 42, 0.22);
}

.api-docs-support-card::before {
    content: '';
    position: absolute;
    inset: auto -8% -25% auto;
    width: 18rem;
    height: 18rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(125, 211, 252, 0.2) 0%, rgba(125, 211, 252, 0) 72%);
    pointer-events: none;
}

.api-docs-support-card .gsit-section-kicker {
    color: #7dd3fc;
}

.api-docs-support-card h2 {
    position: relative;
    z-index: 1;
    margin: 0;
    max-width: 48rem;
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.1;
    color: #ffffff;
}

.api-docs-support-card p:not(.gsit-section-kicker) {
    position: relative;
    z-index: 1;
    max-width: 44rem;
    margin: 1rem 0 0;
    color: rgba(255, 255, 255, 0.84);
    line-height: 1.85;
}

.api-docs-action-row--support {
    position: relative;
    z-index: 1;
    margin-bottom: 0;
}

.api-docs-action-row--support .btn-secondary {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

.api-docs-action-row--support .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
}

@media (min-width: 960px) {
    .api-docs-hero-grid {
        grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
    }
}

@media (max-width: 959px) {
    .api-docs-hero {
        padding-bottom: 4rem;
    }

    .api-docs-hero h1 {
        font-size: clamp(2.3rem, 10vw, 3.6rem);
    }
}

@media (max-width: 767px) {
    .api-docs-breadcrumb,
    .api-docs-heading,
    .api-docs-card-grid,
    .api-docs-coverage-grid {
        padding-left: 20px;
        padding-right: 20px;
    }

    .api-docs-action-row .btn,
    .api-docs-card-actions .btn {
        width: 100%;
    }

    .api-docs-card-meta {
        grid-template-columns: 1fr;
    }

    .api-docs-card-actions {
        align-items: stretch;
    }

    .api-docs-card-file {
        width: 100%;
    }
}