/* 
   Zenith - Privacy Policy Stylesheet
   Strict Light Mode • No Gradients • Solid Apple System Design System
*/

:root {
    /* Color Palette matching Theme.swift (Light Mode) */
    --bg-main: #f4f5f8;
    --bg-card: #ffffff;
    --bg-card-elevated: #ffffff;
    --bg-inset: #edeef2;
    --bg-subtle: #f8f9fc;

    /* Borders & Dividers */
    --border-color: rgba(0, 0, 0, 0.08);
    --border-strong: rgba(0, 0, 0, 0.14);

    /* Typography / Ink */
    --text-primary: #171921;
    --text-secondary: #636366;
    --text-muted: #8e8e93;

    /* Zenith Brand Accent Solid Colors (No Gradients) */
    --accent-indigo: #5e72e4;
    --accent-indigo-bg: #eef2ff;
    --accent-teal: #20c997;
    --accent-teal-bg: #e6fcf5;
    --accent-amber: #f5a623;
    --accent-amber-bg: #fff9db;
    --accent-coral: #ff521f;
    --accent-coral-bg: #ffe3e3;

    /* Fonts & Radii */
    --font-stack: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-card: 0 4px 14px rgba(0, 0, 0, 0.04);
}

/* Reset & Global */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-family: var(--font-stack);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation Header */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-icon {
    width: 38px;
    height: 38px;
    border-radius: 9px;
    object-fit: cover;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.2;
}

.brand-subtitle {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 999px;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-inset);
}

.nav-link.active {
    color: var(--accent-indigo);
    background-color: var(--accent-indigo-bg);
}

/* Hero Section */
.hero {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    padding: 56px 0 44px;
}

.hero-header {
    max-width: 760px;
    margin-bottom: 36px;
}

.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--accent-indigo-bg);
    color: var(--accent-indigo);
    border: 1px solid rgba(94, 114, 228, 0.2);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.badge-dot {
    width: 7px;
    height: 7px;
    background-color: var(--accent-indigo);
    border-radius: 50%;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 14px;
    line-height: 1.15;
}

.hero-lead {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.5;
    font-weight: 400;
}

/* Highlights Grid */
.quick-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.highlight-card {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 22px;
}

.highlight-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}

.icon-teal {
    background-color: var(--accent-teal-bg);
    color: var(--accent-teal);
}

.icon-indigo {
    background-color: var(--accent-indigo-bg);
    color: var(--accent-indigo);
}

.icon-coral {
    background-color: var(--accent-coral-bg);
    color: var(--accent-coral);
}

.icon-amber {
    background-color: var(--accent-amber-bg);
    color: var(--accent-amber);
}

.highlight-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.highlight-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

/* Main Layout Grid */
.main-content {
    padding: 44px 0 72px;
}

.layout-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 36px;
    align-items: start;
}

/* Sidebar & TOC */
.sidebar {
    position: sticky;
    top: 90px;
}

.sidebar-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-card);
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.search-box svg {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
}

.search-box input {
    width: 100%;
    padding: 10px 12px 10px 38px;
    font-family: var(--font-stack);
    font-size: 0.88rem;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s ease;
}

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

.toc-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 480px;
    overflow-y: auto;
}

.toc-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.toc-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background-color: var(--bg-main);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.toc-item:hover {
    background-color: var(--bg-main);
    color: var(--text-primary);
}

.toc-item.active {
    background-color: var(--accent-indigo-bg);
    color: var(--accent-indigo);
    font-weight: 600;
}

.toc-item.active .toc-num {
    background-color: var(--accent-indigo);
    color: #ffffff;
}

.sidebar-footer {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.btn-secondary {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 14px;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-stack);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

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

/* Policy Content */
.policy-body {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.policy-section {
    scroll-margin-top: 100px;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.section-badge {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-indigo);
    background-color: var(--accent-indigo-bg);
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid rgba(94, 114, 228, 0.15);
}

.section-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.card-body {
    padding: 26px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    font-size: 0.98rem;
    color: var(--text-primary);
    line-height: 1.65;
}

/* Callout boxes */
.callout {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px;
    border-radius: var(--radius-md);
    font-size: 0.92rem;
    line-height: 1.5;
}

.callout-info {
    background-color: var(--accent-indigo-bg);
    border: 1px solid rgba(94, 114, 228, 0.25);
    color: #2b3990;
}

.callout-info svg {
    color: var(--accent-indigo);
    flex-shrink: 0;
    margin-top: 2px;
}

.callout-warning {
    background-color: var(--accent-amber-bg);
    border: 1px solid rgba(245, 166, 35, 0.3);
    color: #8c5b00;
}

.callout-warning svg {
    color: var(--accent-amber);
    flex-shrink: 0;
    margin-top: 2px;
}

.link-inline {
    color: var(--accent-indigo);
    font-weight: 600;
    text-decoration: none;
}

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

/* Footer */
.footer {
    background-color: #ffffff;
    border-top: 1px solid var(--border-color);
    padding: 36px 0;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-icon {
    width: 32px;
    height: 32px;
    border-radius: 7px;
}

.footer-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-copy {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 860px) {
    .layout-grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

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