/* =========================================
   API Page — standalone, Research-adjacent theme
   ========================================= */

.api-page {
    --api-bg: #ffffff;
    --api-bg-alt: #f7f9fc;
    --api-bg-soft: #f0f7ff;
    --api-text: #1a1a2e;
    --api-text-light: #4a5568;
    --api-text-muted: #718096;
    --api-blue: #0066ff;
    --api-blue-dark: #0047ab;
    --api-brand: #b68000;
    --api-border: #e2e8f0;
    --api-radius: 12px;
    --api-radius-lg: 16px;
    --api-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);

    background: var(--api-bg);
    color: var(--api-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Navbar (light, over hero) */
.api-page .site-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    border-bottom: none;
}

.api-page .site-header.scrolled {
    position: fixed;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.api-page .logo,
.api-page .nav-link,
.api-page .btn-text,
.api-page .mobile-menu-toggle {
    color: var(--api-text);
}

.api-page .nav-link {
    color: var(--api-text-light);
}

.api-page .nav-link:hover {
    color: var(--api-text);
}

.api-page .btn-text:hover {
    background: var(--api-bg-alt);
}

/* Layout */
.api-main {
    padding-top: 0;
}

/* Buttons */
.api-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.5rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border: 1.5px solid transparent;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.api-btn-primary {
    background: var(--api-text);
    color: #fff;
    border-color: var(--api-text);
}

.api-btn-primary:hover {
    background: #111;
}

.api-btn-secondary {
    background: transparent;
    color: var(--api-text);
    border-color: var(--api-border);
}

.api-btn-secondary:hover {
    border-color: var(--api-blue);
    color: var(--api-blue);
}

.api-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.api-actions--stack {
    flex-direction: column;
    align-items: stretch;
    min-width: 200px;
}

/* ---- Hero (Research-style: centered text, image below) ---- */
.api-hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 5rem 0 0;
    box-sizing: border-box;
    background: linear-gradient(to bottom, #ffffff, #c0d4ea);
    border-bottom: 1px solid var(--api-border);
    overflow: hidden;
}

.api-hero-text {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
    padding: 2.5rem 0 1.5rem;
}

.api-logo {
    display: block;
    height: 12px;
    width: auto;
    margin: 0 auto 0.75rem;
}

.api-hero-text h1 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.18;
    letter-spacing: -0.03em;
    margin: 0 0 1.25rem;
}

.api-hero-text h1 span {
    color: var(--api-brand);
}

.api-lead {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--api-text-light);
    max-width: 560px;
    margin: 0 auto 1.5rem;
}

.api-hero-text .api-actions {
    justify-content: center;
}

.api-trust-line {
    margin: 1.25rem 0 0;
    font-size: 0.88rem;
    color: var(--api-text-muted);
}

.api-trust-line strong {
    color: var(--api-text);
}

.api-hero-visual {
    flex: 1;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    line-height: 0;
    min-height: 0;
}

.api-hero-img {
    width: 100%;
    max-width: 2560px;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* ---- Intro + terminal ---- */
.api-intro {
    padding: 5rem 0;
}

.api-intro-grid {
    display: grid;
    grid-template-columns: 1fr 0.95fr;
    gap: 3.5rem;
    align-items: start;
}

.api-eyebrow {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--api-blue);
    margin: 0 0 0.75rem;
}

.api-intro-copy h2 {
    font-size: 1.85rem;
    font-weight: 700;
    line-height: 1.25;
    margin: 0 0 1rem;
    letter-spacing: -0.02em;
}

.api-intro-copy > p {
    color: var(--api-text-light);
    line-height: 1.7;
    margin: 0 0 1.5rem;
}

.api-checklist {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.65rem;
}

.api-checklist li {
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.95rem;
    color: var(--api-text-light);
}

.api-checklist li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--api-blue);
    font-weight: 700;
}

.api-terminal {
    border-radius: var(--api-radius-lg);
    overflow: hidden;
    border: 1px solid #1e293b;
    box-shadow: 0 12px 40px rgba(12, 18, 34, 0.18);
}

.api-terminal-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0.75rem 1rem;
    background: #1e293b;
}

.api-terminal-bar span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #475569;
}

.api-terminal-bar span:nth-child(1) { background: #f87171; }
.api-terminal-bar span:nth-child(2) { background: #fbbf24; }
.api-terminal-bar span:nth-child(3) { background: #4ade80; }

.api-terminal-bar code {
    margin-left: auto;
    font-size: 0.72rem;
    color: #94a3b8;
    font-family: ui-monospace, monospace;
}

.api-terminal-body {
    margin: 0;
    padding: 1.25rem 1.5rem;
    background: #0c1222;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.8rem;
    line-height: 1.7;
    color: #94a3b8;
    overflow-x: auto;
}

.tok-key { color: #7dd3fc; }
.tok-str { color: #86efac; }

/* ---- What you can build ---- */
.api-build {
    padding: 5rem 0;
    background: var(--api-bg);
    border-top: 1px solid var(--api-border);
    border-bottom: 1px solid var(--api-border);
}

.api-build-layout {
    display: grid;
    grid-template-columns: minmax(240px, 340px) 1fr;
    gap: 3.5rem;
    align-items: start;
}

.api-build-head h2 {
    font-size: 1.85rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
}

.api-build-head > p:last-child {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--api-text-light);
}

.api-build-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.api-build-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.25rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--api-border);
    transition: background 0.2s;
}

.api-build-item:first-child {
    padding-top: 0;
}

.api-build-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.api-build-item:hover {
    background: linear-gradient(90deg, rgba(182, 128, 0, 0.04) 0%, transparent 55%);
}

.api-build-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(182, 128, 0, 0.1);
    color: var(--api-brand);
    font-size: 1.35rem;
    flex-shrink: 0;
}

.api-build-body h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0 0 0.35rem;
    color: var(--api-text);
}

.api-build-body p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--api-text-light);
}

/* Shared section head (audience, etc.) */
.api-section-head {
    text-align: center;
    max-width: 520px;
    margin: 0 auto 2.5rem;
}

.api-section-head h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
}

.api-section-head p {
    margin: 0;
    color: var(--api-text-light);
    font-size: 0.95rem;
}

/* ---- Audience ---- */
.api-audience {
    padding: 5rem 0;
}

.api-audience .api-section-head {
    margin-bottom: 2rem;
}

.api-audience-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--api-border);
    border: 1px solid var(--api-border);
    border-radius: var(--api-radius-lg);
    overflow: hidden;
}

.api-audience-grid article {
    padding: 1.5rem;
    background: var(--api-bg);
}

.api-audience-grid h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 0.5rem;
}

.api-audience-grid p {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--api-text-light);
}

/* ---- Benefits strip ---- */
.api-benefits {
    padding: 2.5rem 0;
    background: var(--api-bg-soft);
    border-top: 1px solid var(--api-border);
}

.api-benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    text-align: center;
}

.api-benefit strong {
    display: block;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--api-blue-dark);
    margin-bottom: 0.25rem;
}

.api-benefit span {
    font-size: 0.85rem;
    color: var(--api-text-light);
    line-height: 1.45;
}

/* ---- CTA ---- */
.api-cta {
    padding: 4.5rem 0;
    background: var(--api-text);
    color: #fff;
}

.api-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.api-cta-copy h2 {
    font-size: 1.65rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    letter-spacing: -0.02em;
}

.api-cta-copy > p {
    margin: 0;
    color: #c8d6e5;
    line-height: 1.6;
    max-width: 480px;
}

.api-cta-note {
    margin-top: 0.75rem !important;
    font-size: 0.85rem !important;
    color: #8899aa !important;
}

.api-cta .api-btn-primary {
    background: #fff;
    color: var(--api-text);
    border-color: #fff;
}

.api-cta .api-btn-primary:hover {
    background: #f0f4f8;
}

.api-cta .api-btn-secondary {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.35);
}

.api-cta .api-btn-secondary:hover {
    border-color: #fff;
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

/* ---- FAQ ---- */
.api-faq {
    padding: 4rem 0 5rem;
}

.api-faq-title {
    font-size: 1.35rem;
    font-weight: 700;
    text-align: center;
    margin: 0 0 1.5rem;
}

.api-faq-list {
    max-width: 640px;
    margin: 0 auto;
}

.api-faq-list details {
    border-bottom: 1px solid var(--api-border);
}

.api-faq-list summary {
    padding: 1rem 0;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.api-faq-list summary::-webkit-details-marker {
    display: none;
}

.api-faq-list summary::after {
    content: "+";
    font-weight: 300;
    color: var(--api-text-muted);
}

.api-faq-list details[open] summary::after {
    content: "−";
}

.api-faq-list p {
    margin: 0;
    padding: 0 0 1rem;
    font-size: 0.92rem;
    line-height: 1.65;
    color: var(--api-text-light);
}

/* ---- Responsive ---- */
@media (max-width: 960px) {
    .api-intro-grid {
        grid-template-columns: 1fr;
    }

    .api-hero-text {
        padding-top: 2rem;
    }

    .api-hero-text h1 {
        font-size: 2rem;
    }

    .api-build-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .api-audience-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .api-benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .api-cta-inner {
        flex-direction: column;
        text-align: center;
    }

    .api-cta-copy > p {
        max-width: none;
    }

    .api-actions--stack {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 600px) {
    .api-hero {
        min-height: 100svh;
        padding-top: 4.5rem;
    }

    .api-hero-text {
        padding-top: 1.5rem;
        padding-bottom: 1rem;
    }

    .api-build-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .api-audience-grid {
        grid-template-columns: 1fr;
    }

    .api-benefits-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
}