/* ============================================================
   Partio Marketing Website - Styles
   ============================================================ */

/* --- CSS Variables / Theming --- */
:root {
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

    --max-width: 1200px;
    --nav-height: 120px;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);

    --transition: 0.2s ease;
}

/* Dark theme (default) */
[data-theme="dark"] {
    --bg-primary: #0a0a12;
    --bg-secondary: #12121e;
    --bg-tertiary: #1a1a2a;
    --bg-card: #151524;
    --bg-card-hover: #1c1c32;
    --bg-code: #0d0d18;
    --bg-nav: rgba(10, 10, 18, 0.85);

    --text-primary: #f0f0f8;
    --text-secondary: #a0a0b8;
    --text-tertiary: #6a6a82;
    --text-inverse: #0a0a12;

    --border: #2a2a3e;
    --border-light: #1e1e32;

    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-dark: #4f46e5;
    --accent-bg: rgba(99, 102, 241, 0.1);

    --gradient-start: #6366f1;
    --gradient-end: #06b6d4;

    --green: #22c55e;
    --yellow: #eab308;
    --red: #ef4444;
    --blue: #3b82f6;

    --method-get: #22c55e;
    --method-post: #3b82f6;
    --method-put: #eab308;
    --method-delete: #ef4444;

    --badge-bg: rgba(99, 102, 241, 0.12);
    --badge-text: #a5b4fc;
    --badge-border: rgba(99, 102, 241, 0.25);

    --highlight-row: rgba(99, 102, 241, 0.06);
}

/* Light theme */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fc;
    --bg-tertiary: #f0f1f5;
    --bg-card: #ffffff;
    --bg-card-hover: #f8f9fc;
    --bg-code: #f5f5fa;
    --bg-nav: rgba(255, 255, 255, 0.85);

    --text-primary: #1a1a2e;
    --text-secondary: #555570;
    --text-tertiary: #8888a0;
    --text-inverse: #ffffff;

    --border: #e4e4ec;
    --border-light: #eeeef4;

    --accent: #4f46e5;
    --accent-light: #6366f1;
    --accent-dark: #4338ca;
    --accent-bg: rgba(79, 70, 229, 0.06);

    --gradient-start: #4f46e5;
    --gradient-end: #0891b2;

    --green: #16a34a;
    --yellow: #ca8a04;
    --red: #dc2626;
    --blue: #2563eb;

    --method-get: #16a34a;
    --method-post: #2563eb;
    --method-put: #ca8a04;
    --method-delete: #dc2626;

    --badge-bg: rgba(79, 70, 229, 0.08);
    --badge-text: #4f46e5;
    --badge-border: rgba(79, 70, 229, 0.2);

    --highlight-row: rgba(79, 70, 229, 0.04);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-height) + 24px);
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent-light);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: var(--accent);
}

code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--bg-code);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
}

img {
    max-width: 100%;
    height: auto;
}

/* --- Utility --- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 56px;
}
.section-header h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* --- Theme Toggles --- */
.logo-light-mode { display: none; }
.logo-dark-mode { display: block; }
[data-theme="light"] .logo-light-mode { display: block; }
[data-theme="light"] .logo-dark-mode { display: none; }

.icon-moon { display: none; }
.icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: block; }
[data-theme="light"] .icon-sun { display: none; }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}
.btn-sm { font-size: 0.85rem; padding: 8px 16px; }
.btn-md { font-size: 0.9rem; padding: 10px 20px; }
.btn-lg { font-size: 1rem; padding: 14px 28px; }

.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover {
    background: var(--accent-dark);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid var(--border);
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent-light);
    background: var(--accent-bg);
}

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

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--bg-nav);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: background var(--transition);
}
.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}
.nav-logo img {
    height: 96px;
    width: auto;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    justify-content: center;
}
.nav-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.nav-links a:hover {
    color: var(--text-primary);
    background: var(--accent-bg);
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}
.theme-toggle:hover {
    color: var(--text-primary);
    border-color: var(--accent);
    background: var(--accent-bg);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
    padding: calc(var(--nav-height) + 80px) 0 80px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
    pointer-events: none;
}
.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.hero-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--badge-text);
    background: var(--badge-bg);
    border: 1px solid var(--badge-border);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 24px;
    letter-spacing: 0.02em;
}
.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}
.gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 540px;
}
.hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 32px;
}
.trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-tertiary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    padding: 5px 12px;
    border-radius: 100px;
}

/* Terminal */
.terminal {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #0d0d18;
    border: 1px solid #2a2a3e;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}
[data-theme="light"] .terminal {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}
.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: #151524;
    border-bottom: 1px solid #2a2a3e;
}
.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.terminal-dot.red { background: #ef4444; }
.terminal-dot.yellow { background: #eab308; }
.terminal-dot.green { background: #22c55e; }
.terminal-title {
    flex: 1;
    text-align: center;
    font-size: 0.75rem;
    color: #6a6a82;
    font-family: var(--font-sans);
}
.terminal-body {
    padding: 20px;
    overflow-x: auto;
}
.terminal-body pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.7;
    color: #e0e0f0;
}
.terminal-body code {
    background: none;
    padding: 0;
    font-size: inherit;
}

/* Terminal syntax colors */
.t-comment { color: #6a6a82; }
.t-prompt { color: #22c55e; }
.t-string { color: #fbbf24; }
.t-keyword { color: #c084fc; }
.t-builtin { color: #38bdf8; }
.t-number { color: #f97316; }
.t-output { color: #6a6a82; font-style: italic; }

/* ============================================================
   BENEFITS
   ============================================================ */
.benefits {
    padding: 100px 0;
    background: var(--bg-secondary);
}
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}
.benefit-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition);
}
.benefit-card:hover {
    border-color: var(--accent);
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.08);
    transform: translateY(-2px);
}
.benefit-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: var(--radius-md);
    color: white;
    margin-bottom: 20px;
}
.benefit-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}
.benefit-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.65;
}

/* ============================================================
   FEATURES
   ============================================================ */
.features {
    padding: 100px 0;
}
.features-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}
.feature-group-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--accent-light);
}
.feature-list {
    list-style: none;
}
.feature-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
}
.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

/* ============================================================
   ARCHITECTURE
   ============================================================ */
.architecture {
    padding: 100px 0;
    background: var(--bg-secondary);
}
.arch-diagram {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}
.arch-row {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}
.arch-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px 32px;
    min-width: 180px;
    transition: all var(--transition);
}
.arch-node:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.1);
}
.arch-node-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    color: var(--accent-light);
}
.arch-node strong {
    font-size: 0.95rem;
    margin-bottom: 4px;
}
.arch-node span {
    font-size: 0.78rem;
    color: var(--text-tertiary);
}
.arch-server { border-color: var(--accent); background: var(--accent-bg); }
.arch-server .arch-node-icon { color: var(--accent-light); }
.arch-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 12px 0;
    color: var(--text-tertiary);
}
.arch-arrow span {
    font-size: 0.75rem;
    font-weight: 500;
}

/* ============================================================
   USE CASES
   ============================================================ */
.use-cases {
    padding: 100px 0;
}
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.use-case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition);
}
.use-case-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.use-case-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-light);
    margin-bottom: 16px;
}
.use-case-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.use-case-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}
.use-case-audience {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--badge-text);
    background: var(--badge-bg);
    border: 1px solid var(--badge-border);
    padding: 3px 10px;
    border-radius: 100px;
}

/* ============================================================
   COMPARISON
   ============================================================ */
.comparison {
    padding: 100px 0;
    background: var(--bg-secondary);
}
.comparison-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}
.comparison-table th,
.comparison-table td {
    padding: 14px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}
.comparison-table thead th {
    background: var(--bg-tertiary);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-tertiary);
}
.comparison-table thead th.highlight {
    color: var(--accent-light);
}
.comparison-table td {
    color: var(--text-secondary);
}
.comparison-table td.highlight {
    color: var(--text-primary);
    font-weight: 600;
    background: var(--highlight-row);
}
.comparison-table tbody tr:last-child td {
    border-bottom: none;
}
.comparison-table tbody tr:hover td {
    background: var(--highlight-row);
}

/* ============================================================
   CODE EXAMPLES / TABS
   ============================================================ */
.examples {
    padding: 100px 0;
}
.tabs, .start-tabs {
    max-width: 800px;
    margin: 0 auto;
}
.tab-bar {
    display: flex;
    gap: 4px;
    margin-bottom: 0;
    padding: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    overflow-x: auto;
}
.tab-btn {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 8px 18px;
    background: transparent;
    color: var(--text-tertiary);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.tab-btn:hover {
    color: var(--text-primary);
}
.tab-btn.active {
    background: var(--bg-card);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}
.tab-panel {
    display: none;
}
.tab-panel.active {
    display: block;
}
.code-block {
    position: relative;
    background: var(--bg-code);
    border: 1px solid var(--border);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    overflow-x: auto;
}
.tab-panel .code-block {
    border-top: none;
}
.code-block pre {
    margin: 0;
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.7;
    color: var(--text-primary);
}
.code-block code {
    background: none;
    padding: 0;
    font-size: inherit;
}
.code-block-sm pre {
    padding: 16px;
    font-size: 0.78rem;
}
.copy-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 6px 10px;
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    opacity: 0;
}
.code-block:hover .copy-btn {
    opacity: 1;
}
.copy-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent);
}
.copy-btn.copied {
    color: var(--green);
    border-color: var(--green);
}

/* ============================================================
   CHUNKING STRATEGIES
   ============================================================ */
.strategies {
    padding: 100px 0;
    background: var(--bg-secondary);
}
.strategies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}
.strategy-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: all var(--transition);
}
.strategy-card:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}
.strategy-card h4 {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--accent-light);
}
.strategy-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 10px;
}
.strategy-types {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================================
   GETTING STARTED
   ============================================================ */
.getting-started {
    padding: 100px 0;
}
.start-steps {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding: 24px 0;
}
.start-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.step-number {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: white;
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 50%;
}
.step-content {
    flex: 1;
    min-width: 0;
}
.step-content h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 12px;
}
.start-step .code-block {
    border-radius: var(--radius-md);
}
.start-info {
    margin-top: 24px;
    padding: 20px 24px;
    background: var(--accent-bg);
    border: 1px solid var(--badge-border);
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.8;
}
.start-info code {
    background: var(--bg-code);
    border: 1px solid var(--border);
}

/* ============================================================
   DASHBOARD
   ============================================================ */
.dashboard-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}
.dashboard-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.dashboard-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition);
}
.dashboard-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.dashboard-card-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-light);
    margin-bottom: 16px;
}
.dashboard-card h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.dashboard-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================================
   SDKs
   ============================================================ */
.sdks {
    padding: 100px 0;
}
.sdk-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}
.sdk-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    display: flex;
    flex-direction: column;
    transition: all var(--transition);
}
.sdk-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}
.sdk-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
}
.sdk-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: var(--radius-md);
}
.sdk-meta h4 {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 600;
}
.sdk-meta span {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}
.sdk-features {
    list-style: none;
    margin-bottom: 18px;
    flex: 1;
}
.sdk-features li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 4px 0 4px 18px;
    position: relative;
}
.sdk-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 11px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--green);
}
.sdk-card .code-block {
    margin-bottom: 18px;
    border-radius: var(--radius-md);
}

/* ============================================================
   API REFERENCE
   ============================================================ */
.api-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}
.api-groups {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}
.api-group {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
}
.api-group-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-tertiary);
    margin-bottom: 16px;
}
.api-endpoints {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.api-endpoint {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.85rem;
}
.api-endpoint-route {
    display: flex;
    align-items: center;
    gap: 8px;
}
.api-method {
    flex-shrink: 0;
    display: inline-block;
    width: 52px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 0;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.api-method.get { background: rgba(34, 197, 94, 0.12); color: var(--method-get); }
.api-method.post { background: rgba(59, 130, 246, 0.12); color: var(--method-post); }
.api-method.put { background: rgba(234, 179, 8, 0.12); color: var(--method-put); }
.api-method.delete { background: rgba(239, 68, 68, 0.12); color: var(--method-delete); }
.api-endpoint code {
    font-size: 0.8rem;
}
.api-desc {
    color: var(--text-tertiary);
    font-size: 0.78rem;
    padding-left: 60px;
}
.api-cta {
    text-align: center;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}
.api-cta p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}
.api-cta .btn {
    margin: 0 6px;
    padding-inline: 2.5em;
}

/* ============================================================
   DATABASES
   ============================================================ */
.databases {
    padding: 100px 0;
}
.db-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}
.db-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    position: relative;
    transition: all var(--transition);
}
.db-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}
.db-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.db-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
}
.db-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.db-badge.default {
    background: rgba(34, 197, 94, 0.12);
    color: var(--green);
    border: 1px solid rgba(34, 197, 94, 0.25);
}

/* ============================================================
   CTA
   ============================================================ */
.cta-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}
.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}
.cta-content h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}
.cta-content p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
}
.cta-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--border);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 48px;
}
.footer-logo {
    height: 28px;
    width: auto;
    margin-bottom: 12px;
}
.footer-brand p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.6;
}
.footer-license {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}
.footer-links-group h4 {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin-bottom: 14px;
}
.footer-links-group ul {
    list-style: none;
}
.footer-links-group li {
    margin-bottom: 8px;
}
.footer-links-group a {
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: color var(--transition);
}
.footer-links-group a:hover {
    color: var(--accent-light);
}
.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
    text-align: center;
}
.footer-bottom p {
    font-size: 0.82rem;
    color: var(--text-tertiary);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .hero-content {
        text-align: center;
    }
    .hero-subtitle {
        max-width: 100%;
    }
    .hero-ctas {
        justify-content: center;
    }
    .trust-badges {
        justify-content: center;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-nav);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border);
        padding: 12px;
        gap: 4px;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-links a {
        padding: 10px 16px;
        width: 100%;
        border-radius: var(--radius-sm);
    }
    .hamburger {
        display: flex;
    }
    .nav-actions .btn {
        display: none;
    }

    .hero {
        padding: calc(var(--nav-height) + 48px) 0 48px;
    }
    .hero-title {
        font-size: clamp(2rem, 7vw, 3rem);
    }

    .benefits, .features, .architecture, .use-cases,
    .comparison, .examples, .strategies, .getting-started,
    .dashboard-section, .sdks, .api-section, .databases,
    .cta-section {
        padding: 64px 0;
    }

    .benefits-grid,
    .use-cases-grid,
    .strategies-grid,
    .dashboard-feature-grid,
    .sdk-grid,
    .api-groups,
    .db-grid {
        grid-template-columns: 1fr;
    }

    .features-columns {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .arch-row {
        flex-direction: column;
        align-items: center;
    }

    .comparison-table {
        font-size: 0.82rem;
    }
    .comparison-table th,
    .comparison-table td {
        padding: 10px 14px;
    }

    .api-cta .btn {
        display: block;
        margin: 8px auto;
    }
}

@media (max-width: 480px) {
    .hero-ctas {
        flex-direction: column;
        align-items: center;
    }
    .hero-ctas .btn {
        width: 100%;
        justify-content: center;
    }
    .trust-badges {
        flex-direction: column;
        align-items: center;
    }
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    .cta-buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
.animate-target {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.animate-target.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animations for grid items */
.benefits-grid .animate-target:nth-child(2),
.use-cases-grid .animate-target:nth-child(2),
.dashboard-feature-grid .animate-target:nth-child(2),
.sdk-grid .animate-target:nth-child(2),
.strategies-grid .animate-target:nth-child(2),
.db-grid .animate-target:nth-child(2) {
    transition-delay: 0.05s;
}
.benefits-grid .animate-target:nth-child(3),
.use-cases-grid .animate-target:nth-child(3),
.dashboard-feature-grid .animate-target:nth-child(3),
.sdk-grid .animate-target:nth-child(3),
.strategies-grid .animate-target:nth-child(3),
.db-grid .animate-target:nth-child(3) {
    transition-delay: 0.1s;
}
.benefits-grid .animate-target:nth-child(4),
.use-cases-grid .animate-target:nth-child(4),
.dashboard-feature-grid .animate-target:nth-child(4),
.strategies-grid .animate-target:nth-child(4),
.db-grid .animate-target:nth-child(4) {
    transition-delay: 0.15s;
}
.benefits-grid .animate-target:nth-child(5),
.use-cases-grid .animate-target:nth-child(5),
.dashboard-feature-grid .animate-target:nth-child(5),
.strategies-grid .animate-target:nth-child(5) {
    transition-delay: 0.2s;
}
.benefits-grid .animate-target:nth-child(6),
.use-cases-grid .animate-target:nth-child(6),
.dashboard-feature-grid .animate-target:nth-child(6),
.strategies-grid .animate-target:nth-child(6) {
    transition-delay: 0.25s;
}

/* Active nav link */
.nav-links a.active {
    color: var(--accent-light);
    background: var(--accent-bg);
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
    .animate-target {
        opacity: 1;
        transform: none;
    }
}