/* ============================================
   GEO Demo — Shared Styles (ChannelLab Brand)
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    /* Brand — decorative use only (see WCAG notes) */
    --brand-primary: #1B5B8A;   /* NOT for text (2.46:1 on bg-card) */
    --brand-light: #2980B9;     /* text: ≥14px bold or ≥18px only (4.12:1 on bg-card) */
    --brand-dark: #134363;
    --brand-glow: rgba(27, 91, 138, 0.3);

    /* Background */
    --bg-page: #0B1120;
    --bg-card: #111827;
    --bg-card-hover: #1F2937;
    --bg-elevated: #1E293B;

    /* Text */
    --text-primary: #F1F5F9;
    --text-secondary: #CBD5E1;
    --text-tertiary: #64748B;

    /* Border */
    --border-color: #1E293B;
    --border-accent: 2px solid #1B5B8A;
    --border-radius: 12px;

    /* Semantic */
    --success: #22C55E;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;

    /* Data */
    --accent-rate: #F1F5F9;
    --accent-highlight: #38BDF8;

    /* Shadows */
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.4);

    /* Legacy aliases — kept for backward compat, map to brand tokens */
    --black-bg: var(--bg-page);
    --black-card: var(--bg-card);
    --black-hover: var(--bg-card-hover);
    --red: var(--danger);
    --amber: var(--warning);
    --blue: var(--info);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-page);
    line-height: 1.6;
}

/* ============================================
   Navigation
   ============================================ */

.nav-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 17, 32, 0.95);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    padding: 0 20px;
}

.nav-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 32px;
    height: 56px;
}

.nav-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    white-space: nowrap;
}

.nav-brand img {
    height: 28px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    letter-spacing: 0.5px;
}

.nav-link:hover {
    color: var(--brand-light);
    background: rgba(27, 91, 138, 0.08);
}

.nav-link.active {
    color: #fff;
    background: var(--brand-primary);
}

.nav-meta {
    margin-left: auto;
    font-size: 11px;
    color: var(--text-tertiary);
    white-space: nowrap;
}

.nav-meta .badge-demo {
    display: inline-block;
    padding: 2px 8px;
    border: 1px solid var(--warning);
    color: var(--warning);
    border-radius: 4px;
    font-weight: 700;
    font-size: 10px;
    text-transform: uppercase;
    margin-left: 8px;
}

/* ============================================
   Page Container
   ============================================ */

.page-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 32px 20px;
}

/* ============================================
   Shared Header
   ============================================ */

.page-header {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-page) 100%);
    border: var(--border-accent);
    border-radius: var(--border-radius);
    padding: 40px 32px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at top right, rgba(27, 91, 138, 0.1), transparent);
    pointer-events: none;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    position: relative;
    z-index: 1;
}

.header-left h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
    color: var(--text-primary);
}

.header-left .subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

/* ============================================
   Section Titles
   ============================================ */

.section-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

/* ============================================
   Cards
   ============================================ */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.card:hover {
    border-color: var(--brand-primary);
    box-shadow: var(--shadow-hover);
    background: var(--bg-card-hover);
}

.card-neon {
    border-color: var(--brand-primary);
}

/* ============================================
   Progress Bars
   ============================================ */

.bar-track {
    height: 6px;
    background: rgba(27, 91, 138, 0.12);
    border-radius: 4px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: var(--brand-primary);
    border-radius: 4px;
    transition: width 0.8s ease;
}

/* ============================================
   Badges & Tags
   ============================================ */

.badge { display: inline-block; padding: 4px 8px; border-radius: 4px; font-size: 11px; font-weight: 700; text-transform: uppercase; border: 1px solid; }
.badge-first { background: rgba(34,197,94,0.15); color: var(--success); border-color: var(--success); }
.badge-second { background: rgba(245,158,11,0.15); color: var(--warning); border-color: var(--warning); }
.badge-third { background: rgba(239,68,68,0.15); color: var(--danger); border-color: var(--danger); }

.status { display: inline-block; padding: 4px 12px; border-radius: 4px; font-size: 11px; font-weight: 700; text-transform: uppercase; border: 1px solid; }
.status-excellent { background: rgba(34,197,94,0.15); color: var(--success); border-color: var(--success); }
.status-good { background: rgba(59,130,246,0.15); color: var(--info); border-color: var(--info); }
.status-warning { background: rgba(245,158,11,0.15); color: var(--warning); border-color: var(--warning); }

.trend-up { color: var(--success); }
.trend-down { color: var(--danger); }
.trend-flat { color: var(--warning); }

/* ============================================
   Tables
   ============================================ */

.data-table { width: 100%; border-collapse: collapse; }
.data-table thead { background: rgba(27,91,138,0.08); border-bottom: 2px solid var(--brand-primary); }
.data-table th { padding: 16px; text-align: left; font-weight: 700; font-size: 14px; color: var(--brand-light); letter-spacing: 0.5px; }
.data-table td { padding: 16px; border-bottom: 1px solid var(--border-color); font-size: 14px; }
.data-table tbody tr { transition: background-color 0.2s ease; }
.data-table tbody tr:hover { background: rgba(27,91,138,0.05); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* ============================================
   Grids
   ============================================ */

.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.grid-6 { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }

/* ============================================
   Utility
   ============================================ */

.mb-40 { margin-bottom: 24px; }
.text-brand { color: var(--brand-light); }
.text-neon { color: var(--brand-light); }   /* legacy alias */
.text-yellow { color: var(--warning); }
.text-dim { color: var(--text-tertiary); }
.text-sm { font-size: 13px; }
.text-xs { font-size: 11px; }
.fw-700 { font-weight: 700; }
.uppercase { text-transform: uppercase; }
.ls-1 { letter-spacing: 1px; }

/* ============================================
   Loading
   ============================================ */

.loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-tertiary);
    font-size: 14px;
}

.loading::after {
    content: '';
    display: block;
    width: 40px; height: 40px;
    margin: 20px auto 0;
    border: 3px solid var(--border-color);
    border-top-color: var(--brand-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .page-container { padding: 20px 16px; }
    .page-header { padding: 24px 20px; }
    .header-content { flex-direction: column; gap: 16px; }
    .header-left h1 { font-size: 28px; }
    .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .grid-6 { grid-template-columns: repeat(2, 1fr); }
    .nav-meta { display: none; }
}

@media (max-width: 480px) {
    .page-container { padding: 16px 12px; }
    .header-left h1 { font-size: 20px; }
    .grid-3, .grid-4, .grid-6 { grid-template-columns: 1fr; }
    .nav-links { gap: 0; }
    .nav-link { padding: 6px 10px; font-size: 11px; }
}