/* ===== Save Time - Main Stylesheet ===== */
:root {
  --primary: #1a3c8f;
  --primary-dark: #152e6e;
  --primary-light: #2a5bc4;
  --secondary: #c9a227;
  --secondary-light: #f0c040;
  --accent: #e8b800;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --nav-height: 72px;
  --gradient-primary: linear-gradient(135deg, #1a3c8f 0%, #2a5bc4 100%);
  --gradient-gold: linear-gradient(135deg, #c9a227 0%, #f0c040 100%);
  --gradient-hero: linear-gradient(135deg, #0d1f4e 0%, #1a3c8f 50%, #1e40af 100%);
}

/* Dark mode */
[data-theme="dark"] {
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --bg-primary: #0d1117;
  --bg-secondary: #161b27;
  --bg-card: #1a2235;
  --border: #263047;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); color: var(--text-primary); background: var(--bg-primary); transition: background var(--transition), color var(--transition); overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font); border: none; outline: none; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--primary-light); border-radius: 3px; }

h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 600; line-height: 1.4; }
h4 { font-size: 1.05rem; font-weight: 600; }
p { line-height: 1.7; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header .badge { display: inline-block; background: rgba(42,91,196,0.1); color: var(--primary-light); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 6px 16px; border-radius: 100px; margin-bottom: 14px; border: 1px solid rgba(42,91,196,0.2); }
.section-header h2 { margin-bottom: 14px; }
.section-header p { color: var(--text-secondary); font-size: 1.05rem; max-width: 580px; margin: 0 auto; }

/* ===== BUTTONS ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 600; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: var(--gradient-primary); color: white; box-shadow: 0 4px 15px rgba(26,60,143,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(26,60,143,0.4); }
.btn-secondary { background: var(--gradient-gold); color: #0d1f4e; font-weight: 700; box-shadow: 0 4px 15px rgba(201,162,39,0.3); }
.btn-secondary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(201,162,39,0.4); }
.btn-outline { background: transparent; color: var(--primary-light); border: 2px solid var(--primary-light); }
.btn-outline:hover { background: var(--primary-light); color: white; }
.btn-white { background: white; color: var(--primary); box-shadow: var(--shadow-md); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg-secondary); color: var(--text-primary); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-lg { padding: 15px 34px; font-size: 1.05rem; border-radius: var(--radius-md); }
.btn-icon { padding: 10px; border-radius: var(--radius-sm); }
.btn-danger { background: var(--danger); color: white; }

/* ===== NAVBAR ===== */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--nav-height); transition: all var(--transition); }
.navbar.scrolled { background: var(--bg-card); box-shadow: 0 1px 0 var(--border), var(--shadow-sm); }
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.nav-logo { display: flex; align-items: center; gap: 11px; }
.nav-logo-icon { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, #1a3c8f, #c9a227); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.nav-logo-text { font-size: 1.35rem; font-weight: 900; letter-spacing: -0.02em; color: var(--primary); }
.nav-logo-text span { color: var(--secondary); }
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-link { padding: 8px 14px; border-radius: var(--radius-sm); font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); transition: all var(--transition); }
.nav-link:hover, .nav-link.active { color: var(--primary); background: rgba(26,60,143,0.07); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.theme-toggle { width: 38px; height: 38px; border-radius: 50%; background: var(--bg-secondary); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--text-secondary); transition: all var(--transition); cursor: pointer; font-size: 1rem; }
.theme-toggle:hover { background: var(--primary); color: white; border-color: var(--primary); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; padding: 8px; }
.hamburger span { width: 22px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: all var(--transition); }

/* ===== HERO ===== */
.hero { min-height: 100vh; background: var(--gradient-hero); position: relative; display: flex; align-items: center; overflow: hidden; padding-top: var(--nav-height); }
.hero::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cg fill='%23ffffff' fill-opacity='0.025'%3E%3Ccircle cx='30' cy='30' r='3'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.hero-blob { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.12; animation: blobFloat 8s ease-in-out infinite; }
.hero-blob-1 { width: 480px; height: 480px; background: var(--secondary); top: -80px; right: -80px; }
.hero-blob-2 { width: 380px; height: 380px; background: #2a5bc4; bottom: -80px; left: -80px; animation-delay: 3s; }
@keyframes blobFloat { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(25px,-25px) scale(1.04); } }
.hero-content { position: relative; z-index: 2; max-width: 1200px; margin: 0 auto; padding: 80px 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.hero-text { color: white; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(201,162,39,0.18); color: #f0c040; border: 1px solid rgba(201,162,39,0.35); padding: 7px 16px; border-radius: 100px; font-size: 0.82rem; font-weight: 700; margin-bottom: 22px; animation: fadeInUp 0.7s ease forwards; }
.hero h1 { color: white; margin-bottom: 18px; animation: fadeInUp 0.7s ease 0.1s forwards; opacity: 0; }
.hero h1 span { background: linear-gradient(135deg, #c9a227, #f0c040); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-subtitle { font-size: 1.1rem; color: rgba(255,255,255,0.78); line-height: 1.75; margin-bottom: 34px; animation: fadeInUp 0.7s ease 0.2s forwards; opacity: 0; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; animation: fadeInUp 0.7s ease 0.3s forwards; opacity: 0; }
.hero-stats { display: flex; gap: 28px; margin-top: 44px; animation: fadeInUp 0.7s ease 0.4s forwards; opacity: 0; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat-number { font-size: 1.7rem; font-weight: 900; color: var(--secondary-light); display: block; }
.hero-stat-label { font-size: 0.76rem; color: rgba(255,255,255,0.55); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 2px; }
.hero-visual { position: relative; animation: fadeInRight 0.7s ease 0.2s forwards; opacity: 0; }
.hero-card { background: rgba(255,255,255,0.07); backdrop-filter: blur(20px); border: 1px solid rgba(255,255,255,0.13); border-radius: var(--radius-xl); padding: 28px; color: white; }
.hero-course-item { background: rgba(255,255,255,0.05); border-radius: var(--radius-sm); padding: 13px 15px; display: flex; align-items: center; gap: 12px; border: 1px solid rgba(255,255,255,0.07); transition: all var(--transition); margin-bottom: 10px; }
.hero-course-item:last-child { margin-bottom: 0; }
.hero-course-item:hover { background: rgba(255,255,255,0.1); }
.level-pill { padding: 2px 9px; border-radius: 100px; font-size: 0.68rem; font-weight: 700; text-transform: uppercase; flex-shrink: 0; }
.level-beginner { background: rgba(16,185,129,0.2); color: #34d399; }
.level-intermediate { background: rgba(245,158,11,0.2); color: #fbbf24; }
.level-advanced { background: rgba(239,68,68,0.2); color: #f87171; }
.level-business { background: rgba(139,92,246,0.2); color: #c4b5fd; }
.hero-floating { position: absolute; background: white; border-radius: var(--radius-md); padding: 11px 15px; display: flex; align-items: center; gap: 10px; box-shadow: var(--shadow-xl); animation: float 4s ease-in-out infinite; }
.hero-floating-1 { top: -18px; right: -28px; }
.hero-floating-2 { bottom: 24px; left: -36px; animation-delay: 2s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ===== LEVELS SECTION ===== */
.levels-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.level-card { background: var(--bg-card); border: 1.5px solid var(--border); border-radius: var(--radius-lg); padding: 28px 22px; text-align: center; transition: all var(--transition); cursor: pointer; }
.level-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.level-card.featured { border-color: var(--secondary); background: linear-gradient(135deg, rgba(26,60,143,0.04), rgba(201,162,39,0.04)); }
.level-emoji { font-size: 2.4rem; margin-bottom: 14px; }
.level-card h3 { margin-bottom: 8px; font-size: 1.05rem; }
.level-card p { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.6; margin-bottom: 14px; }
.level-tag { display: inline-block; font-size: 0.72rem; font-weight: 700; padding: 4px 12px; border-radius: 100px; }

/* ===== FEATURE CARDS ===== */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; transition: all var(--transition); position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient-gold); transform: scaleX(0); transition: transform var(--transition); transform-origin: left; }
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon { width: 52px; height: 52px; border-radius: var(--radius-md); background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 18px; }
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { color: var(--text-secondary); font-size: 0.92rem; }

/* ===== COURSE CARDS ===== */
.courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(310px, 1fr)); gap: 26px; }
.course-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition); display: flex; flex-direction: column; }
.course-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); border-color: transparent; }
.course-card-img { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--gradient-hero); }
.course-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.course-card:hover .course-card-img img { transform: scale(1.05); }
.course-badge { position: absolute; top: 11px; left: 11px; background: var(--gradient-gold); color: #0d1f4e; font-size: 0.7rem; font-weight: 800; padding: 4px 10px; border-radius: 100px; text-transform: uppercase; letter-spacing: 0.04em; }
.course-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.course-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 9px; flex-wrap: wrap; }
.course-level { font-size: 0.72rem; font-weight: 700; color: var(--primary-light); background: rgba(42,91,196,0.1); padding: 3px 10px; border-radius: 100px; text-transform: capitalize; }
.course-card-title { font-size: 1rem; font-weight: 700; margin-bottom: 7px; line-height: 1.4; }
.course-card-desc { color: var(--text-secondary); font-size: 0.86rem; line-height: 1.6; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.course-instructor { display: flex; align-items: center; gap: 7px; font-size: 0.82rem; color: var(--text-secondary); margin-bottom: 12px; }
.course-stats { display: flex; align-items: center; gap: 14px; font-size: 0.78rem; color: var(--text-muted); margin-bottom: 14px; flex-wrap: wrap; }
.rating-stars { color: var(--secondary); }
.course-card-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 13px; border-top: 1px solid var(--border); }
.course-price-current { font-size: 1.25rem; font-weight: 800; color: var(--primary); }
.course-price-original { font-size: 0.88rem; color: var(--text-muted); text-decoration: line-through; margin-left: 6px; }
.course-img-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 2.8rem; }

/* ===== STATS ===== */
.stats-section { background: var(--gradient-hero); padding: 72px 0; position: relative; overflow: hidden; }
.stats-section::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Ccircle cx='20' cy='20' r='2'/%3E%3C/g%3E%3C/svg%3E"); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; text-align: center; position: relative; z-index: 1; }
.stat-number { font-size: 2.8rem; font-weight: 900; color: var(--secondary-light); display: block; line-height: 1; margin-bottom: 8px; }
.stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.7); font-weight: 500; }

/* ===== TESTIMONIALS ===== */
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 26px; }
.testimonial-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px; transition: all var(--transition); }
.testimonial-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.testimonial-quote { font-size: 2.8rem; color: var(--secondary); line-height: 1; margin-bottom: 10px; opacity: 0.4; font-family: Georgia, serif; }
.testimonial-text { color: var(--text-secondary); line-height: 1.75; margin-bottom: 18px; font-style: italic; font-size: 0.93rem; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; color: white; font-weight: 700; font-size: 1.1rem; flex-shrink: 0; }
.testimonial-name { font-weight: 700; font-size: 0.9rem; }
.testimonial-title { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }
.testimonial-stars { color: var(--secondary); font-size: 0.88rem; margin-bottom: 12px; }
.achievement-badge { display: inline-flex; align-items: center; gap: 5px; background: rgba(16,185,129,0.1); color: var(--success); border: 1px solid rgba(16,185,129,0.2); padding: 4px 10px; border-radius: 100px; font-size: 0.72rem; font-weight: 600; margin-top: 12px; }

/* ===== CTA ===== */
.cta-section { background: var(--gradient-primary); padding: 72px 0; text-align: center; position: relative; overflow: hidden; }
.cta-section::after { content: ''; position: absolute; bottom: -60px; right: -60px; width: 280px; height: 280px; background: rgba(201,162,39,0.12); border-radius: 50%; filter: blur(60px); }
.cta-section h2, .cta-section p { color: white; }
.cta-section p { margin-bottom: 32px; opacity: 0.82; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== FOOTER ===== */
footer { background: #0a1628; color: rgba(255,255,255,0.65); padding: 60px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 44px; margin-bottom: 44px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-logo-icon { width: 38px; height: 38px; border-radius: 50%; background: linear-gradient(135deg, #1a3c8f, #c9a227); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.footer-logo-text { font-size: 1.2rem; font-weight: 900; color: white; letter-spacing: -0.01em; }
.footer-logo-text span { color: var(--secondary-light); }
.footer-desc { font-size: 0.88rem; line-height: 1.7; margin-bottom: 22px; }
.footer-social { display: flex; gap: 10px; }
.social-link { width: 36px; height: 36px; border-radius: var(--radius-sm); background: rgba(255,255,255,0.07); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.55); transition: all var(--transition); font-size: 0.9rem; }
.social-link:hover { background: var(--primary-light); color: white; transform: translateY(-2px); }
.footer-col h4 { color: white; font-weight: 600; margin-bottom: 18px; font-size: 0.9rem; }
.footer-links li { margin-bottom: 9px; }
.footer-links a { font-size: 0.85rem; color: rgba(255,255,255,0.55); transition: color var(--transition); }
.footer-links a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.07); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; }
.footer-bottom p { font-size: 0.82rem; }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { font-size: 0.82rem; color: rgba(255,255,255,0.4); transition: color var(--transition); }
.footer-bottom-links a:hover { color: white; }

/* ===== FORMS ===== */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.form-control { width: 100%; padding: 11px 13px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: 0.93rem; font-family: var(--font); color: var(--text-primary); background: var(--bg-card); transition: all var(--transition); }
.form-control:focus { outline: none; border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(42,91,196,0.12); }
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; min-height: 110px; }
select.form-control { appearance: none; cursor: pointer; }

/* ===== SEARCH ===== */
.search-box { position: relative; }
.search-box input { padding-left: 42px; }
.search-box .search-icon { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.filter-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.filter-chip { padding: 7px 16px; border-radius: 100px; border: 1.5px solid var(--border); font-size: 0.83rem; font-weight: 500; color: var(--text-secondary); background: var(--bg-card); cursor: pointer; transition: all var(--transition); }
.filter-chip:hover, .filter-chip.active { background: var(--primary); color: white; border-color: var(--primary); }

/* ===== PAGINATION ===== */
.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 44px; }
.page-btn { width: 38px; height: 38px; border-radius: var(--radius-sm); border: 1.5px solid var(--border); background: var(--bg-card); color: var(--text-secondary); font-size: 0.88rem; font-weight: 500; cursor: pointer; transition: all var(--transition); display: flex; align-items: center; justify-content: center; }
.page-btn:hover { border-color: var(--primary-light); color: var(--primary-light); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: white; }

/* ===== PAGE HEADER ===== */
.page-header { background: var(--gradient-hero); color: white; padding: 116px 0 60px; text-align: center; }
.page-header h1 { color: white; margin-bottom: 14px; }
.page-header p { color: rgba(255,255,255,0.78); font-size: 1.05rem; max-width: 580px; margin: 0 auto; }

/* ===== BREADCRUMB ===== */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.83rem; color: var(--text-muted); margin-bottom: 22px; }
.breadcrumb a { color: var(--primary-light); }

/* ===== TOAST ===== */
.toast-container { position: fixed; bottom: 22px; right: 22px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast { display: flex; align-items: center; gap: 11px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 13px 16px; box-shadow: var(--shadow-xl); min-width: 290px; max-width: 380px; animation: slideInRight 0.28s ease; }
.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.warning { border-left: 4px solid var(--warning); }
.toast-icon { font-size: 1.1rem; flex-shrink: 0; }
.toast-msg { font-size: 0.88rem; font-weight: 500; flex: 1; }
.toast-close { background: none; border: none; color: var(--text-muted); font-size: 1.1rem; cursor: pointer; }
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ===== LOADER ===== */
.loader { display: inline-block; width: 18px; height: 18px; border: 2px solid rgba(255,255,255,0.3); border-top-color: white; border-radius: 50%; animation: spin 0.7s linear infinite; }
.page-loader { position: fixed; inset: 0; background: var(--bg-primary); display: flex; align-items: center; justify-content: center; z-index: 9999; transition: opacity 0.4s; }
.page-loader.hide { opacity: 0; pointer-events: none; }
.loader-ring { width: 52px; height: 52px; border: 4px solid var(--border); border-top-color: var(--primary-light); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== MODAL ===== */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.55); z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 24px; opacity: 0; pointer-events: none; transition: opacity var(--transition); }
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal { background: var(--bg-card); border-radius: var(--radius-xl); width: 100%; max-width: 500px; max-height: 90vh; overflow-y: auto; transform: translateY(18px) scale(0.97); transition: transform var(--transition); }
.modal-overlay.active .modal { transform: none; }
.modal-header { padding: 22px 26px 0; display: flex; align-items: center; justify-content: space-between; }
.modal-title { font-size: 1.15rem; font-weight: 700; }
.modal-close { width: 30px; height: 30px; border-radius: 50%; background: var(--bg-secondary); color: var(--text-muted); display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 1.1rem; transition: all var(--transition); }
.modal-close:hover { background: var(--danger); color: white; }
.modal-body { padding: 22px 26px 26px; }

/* ===== AUTH ===== */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--gradient-hero); padding: 24px; }
.auth-card { background: var(--bg-card); border-radius: var(--radius-xl); padding: 40px; width: 100%; max-width: 440px; box-shadow: var(--shadow-xl); }

/* ===== COURSE DETAIL ===== */
.course-hero { background: var(--gradient-hero); color: white; padding: 116px 0 60px; }
.course-hero-grid { display: grid; grid-template-columns: 1fr 340px; gap: 44px; align-items: start; }
.course-sidebar { background: var(--bg-card); border-radius: var(--radius-xl); padding: 26px; box-shadow: var(--shadow-xl); position: sticky; top: calc(var(--nav-height) + 14px); }

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.contact-info-card { background: var(--gradient-primary); color: white; border-radius: var(--radius-xl); padding: 36px; }
.contact-item { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 22px; }
.contact-item-icon { width: 42px; height: 42px; background: rgba(255,255,255,0.1); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 1.05rem; }
.contact-item-label { font-size: 0.76rem; color: rgba(255,255,255,0.55); margin-bottom: 2px; }
.contact-item-value { font-weight: 600; color: white; font-size: 0.9rem; }
.contact-social { display: flex; gap: 10px; margin-top: 28px; }
.contact-social a { width: 38px; height: 38px; border-radius: var(--radius-sm); background: rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center; color: white; transition: all var(--transition); }
.contact-social a:hover { background: var(--secondary); transform: translateY(-2px); }

/* ===== FAQ ===== */
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 10px; overflow: hidden; }
.faq-question { padding: 16px 18px; cursor: pointer; display: flex; align-items: center; justify-content: space-between; font-weight: 600; font-size: 0.95rem; transition: background var(--transition); }
.faq-question:hover { background: var(--bg-secondary); }
.faq-icon { transition: transform var(--transition); color: var(--primary-light); flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-item.open .faq-answer { max-height: 220px; }
.faq-answer p { padding: 0 18px 16px; color: var(--text-secondary); line-height: 1.75; font-size: 0.92rem; }

/* ===== TEAM ===== */
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 24px; }
.team-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px; text-align: center; transition: all var(--transition); }
.team-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.team-avatar { width: 82px; height: 82px; border-radius: 50%; background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; font-size: 1.8rem; color: white; font-weight: 700; margin: 0 auto 14px; }
.team-name { font-weight: 700; margin-bottom: 4px; }
.team-role { font-size: 0.82rem; color: var(--primary-light); font-weight: 600; margin-bottom: 9px; }
.team-bio { font-size: 0.83rem; color: var(--text-secondary); line-height: 1.6; }

/* ===== CARD ===== */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; }
.divider { height: 1px; background: var(--border); margin: 22px 0; }

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInRight { from { opacity: 0; transform: translateX(22px); } to { opacity: 1; transform: translateX(0); } }
[data-aos] { opacity: 0; transition: opacity 0.6s ease, transform 0.6s ease; }
[data-aos="fade-up"] { transform: translateY(28px); }
[data-aos="fade-right"] { transform: translateX(-28px); }
[data-aos="fade-left"] { transform: translateX(28px); }
[data-aos].aos-animate { opacity: 1; transform: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-visual { max-width: 480px; margin: 0 auto; }
  .hero-actions, .hero-stats { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .contact-grid { grid-template-columns: 1fr; }
  .course-hero-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  /* Clip transient horizontal overflow from scroll-in animations & hero blobs */
  html, body { overflow-x: hidden; }
  .hamburger { display: flex; }
  .nav-menu { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: var(--bg-card); padding: 14px; flex-direction: column; align-items: stretch; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); z-index: 999; }
  .nav-menu.open { display: flex; }
  .nav-link { padding: 12px 14px; font-size: 1rem; }
  /* Auth buttons relocated into the dropdown on phones */
  .nav-menu .nav-auth-item { list-style: none; margin-top: 6px; }
  .nav-menu .nav-auth-item:first-of-type { border-top: 1px solid var(--border); padding-top: 12px; }
  .nav-menu .auth-login-btn,
  .nav-menu .auth-register-btn { width: 100%; justify-content: center; }
  .nav-menu .auth-user-menu { justify-content: center; }
  .container { padding: 0 18px; }
  .nav-container { padding: 0 18px; }
  .courses-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px; }
  .section { padding: 48px 0; }
  .section-header { margin-bottom: 34px; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }
  .page-header { padding: 96px 0 44px; }
  .hero { min-height: auto; padding-top: 100px; padding-bottom: 52px; }
  .card { padding: 20px; }
}
@media (max-width: 560px) {
  .container { padding: 0 16px; }
  .nav-container { padding: 0 16px; }
  /* Stack inline two-column grids on phones (contact form, modals, etc.) */
  [style*="grid-template-columns:1fr 1fr"],
  [style*="grid-template-columns: 1fr 1fr"],
  [style*="grid-template-columns:repeat(2"],
  [style*="grid-template-columns: repeat(2"] {
    grid-template-columns: 1fr !important;
  }
  /* Collapse 3/4-column inline grids to two columns on phones (stat tiles, etc.) */
  [style*="grid-template-columns:repeat(4"],
  [style*="grid-template-columns: repeat(4"],
  [style*="grid-template-columns:repeat(3"],
  [style*="grid-template-columns: repeat(3"] {
    grid-template-columns: 1fr 1fr !important;
  }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 22px; }
  .team-grid { grid-template-columns: 1fr; }
  .auth-card { padding: 26px 18px; }
  .auth-page { padding: 16px; }
  .hero h1 { font-size: 1.75rem; line-height: 1.25; }
  .hero p { font-size: 1rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .section { padding: 40px 0; }
  .section-header h2 { font-size: 1.45rem; }
  .section-header p { font-size: 0.95rem; }
  .page-header { padding: 90px 0 36px; }
  .page-header h1 { font-size: 1.6rem; }
  .page-header p { font-size: 0.95rem; }
  .card { padding: 18px; }
  .modal { max-width: 100%; }
  .modal-overlay { padding: 14px; }
  .btn-lg { padding: 12px 20px; font-size: 0.92rem; }
  h2 { font-size: 1.45rem; }
}

/* ===== UTILS ===== */
.text-center { text-align: center; }
.text-primary-c { color: var(--primary-light); }
.text-gold { color: var(--secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.font-bold { font-weight: 700; }
.hidden { display: none !important; }
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; border-radius: 100px; font-size: 0.73rem; font-weight: 600; }
.badge-primary { background: rgba(42,91,196,0.1); color: var(--primary-light); }
.badge-success { background: rgba(16,185,129,0.1); color: var(--success); }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; } .mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; }