/**
 * MATOKEO - Tanzania School Directory
 * Main Stylesheet - Part 1: Variables & Base
 */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --primary-gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    --bg-card: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-light: #f8fafc;
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.15);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.18);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --container-max-width: 1280px;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-light: #334155;
    --glass-bg: rgba(30, 41, 59, 0.8);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); background: var(--bg-primary); color: var(--text-primary); line-height: 1.6; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; }

h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.2; color: var(--text-primary); }
h1 { font-size: 2.25rem; } h2 { font-size: 1.875rem; } h3 { font-size: 1.5rem; } h4 { font-size: 1.25rem; }

.container { max-width: var(--container-max-width); margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: var(--glass-bg); backdrop-filter: blur(20px); border-bottom: 1px solid var(--glass-border); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 0.5rem; font-size: 1.25rem; font-weight: 800; color: var(--text-primary); }
.logo-icon { width: 40px; height: 40px; background: var(--primary-gradient); border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; color: white; }
.nav-menu { display: flex; align-items: center; gap: 0.25rem; list-style: none; }
.nav-link { display: flex; align-items: center; gap: 0.25rem; padding: 0.5rem 1rem; color: var(--text-secondary); font-weight: 500; border-radius: var(--radius-md); transition: all var(--transition-fast); }
.nav-link:hover, .nav-link.active { background: var(--bg-tertiary); color: var(--primary); }
.nav-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.25rem; cursor: pointer; }

/* Hero */
.hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 120px 0 80px; background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%); position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; right: -20%; width: 80%; height: 150%; background: var(--primary-gradient); opacity: 0.05; border-radius: 50%; filter: blur(100px); }
.hero-content { position: relative; text-align: center; max-width: 800px; animation: fadeInUp 0.8s ease; }
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.25rem 1rem; background: rgba(37, 99, 235, 0.1); color: var(--primary); border-radius: var(--radius-full); font-size: 0.875rem; font-weight: 600; margin-bottom: 1.5rem; }
.hero-title { font-size: clamp(2.5rem, 6vw, 4rem); margin-bottom: 1.5rem; line-height: 1.1; }
.hero-description { font-size: 1.125rem; color: var(--text-secondary); margin-bottom: 2rem; max-width: 600px; margin-left: auto; margin-right: auto; }
.text-gradient { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* Search */
.search-box { display: flex; align-items: center; max-width: 600px; margin: 0 auto 2rem; background: var(--bg-card); border-radius: var(--radius-xl); box-shadow: var(--shadow-xl); padding: 0.5rem; border: 2px solid transparent; transition: all var(--transition-fast); }
.search-box:focus-within { border-color: var(--primary); box-shadow: var(--shadow-glow); }
.search-input { flex: 1; padding: 1rem 1.5rem; border: none; background: transparent; font-size: 1rem; color: var(--text-primary); outline: none; }
.search-input::placeholder { color: var(--text-muted); }
.search-btn { display: flex; align-items: center; gap: 0.5rem; padding: 1rem 2rem; background: var(--primary-gradient); color: white; border: none; border-radius: var(--radius-lg); font-weight: 600; cursor: pointer; transition: all var(--transition-fast); }
.search-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* Quick Stats */
.quick-stats { display: flex; justify-content: center; gap: 3rem; flex-wrap: wrap; }
.stat-item { text-align: center; }
.stat-value { font-size: 1.875rem; font-weight: 800; background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 0.875rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* Sections */
.section { padding: 4rem 0; }
.section-header { text-align: center; margin-bottom: 2rem; }
.section-subtitle { display: inline-block; padding: 0.25rem 1rem; background: rgba(37, 99, 235, 0.1); color: var(--primary); border-radius: var(--radius-full); font-size: 0.875rem; font-weight: 600; margin-bottom: 1rem; }

/* Categories Grid */
.categories-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.category-card { position: relative; background: var(--bg-card); border-radius: var(--radius-xl); padding: 2rem; border: 1px solid var(--border-light); transition: all var(--transition-normal); overflow: hidden; }
.category-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: var(--primary-gradient); transform: scaleX(0); transform-origin: left; transition: transform var(--transition-normal); }
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-xl); border-color: var(--primary-light); }
.category-card:hover::before { transform: scaleX(1); }
.category-icon { width: 64px; height: 64px; background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1)); border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem; font-size: 1.5rem; color: var(--primary); transition: all var(--transition-normal); }
.category-card:hover .category-icon { background: var(--primary-gradient); color: white; transform: scale(1.1) rotate(-5deg); }
.category-name { font-size: 1.25rem; margin-bottom: 0.5rem; }
.category-description { color: var(--text-secondary); font-size: 0.875rem; margin-bottom: 1rem; }
.category-stats { display: flex; align-items: center; gap: 1.5rem; }
.category-stat { display: flex; align-items: center; gap: 0.25rem; font-size: 0.875rem; color: var(--text-muted); }
.category-stat i { color: var(--primary); }
.category-link { position: absolute; inset: 0; z-index: 10; }