:root {
    --primary-red: #E52E2E;
    --primary-hover: #C82323;
    --dark-bg: #0B132A;
    --text-muted: #94A3B8;
    --border-color: #E2E8F0;
    --radius: 16px;
    --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Plus Jakarta Sans', sans-serif; }
body { background: #FFFFFF; color: #1E293B; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Navigation */
.header { position: fixed; top: 0; left: 0; width: 100%; z-index: 999; background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(226, 232, 240, 0.8); }
.navbar { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.logo { text-decoration: none; display: flex; align-items: center; gap: 4px; }
.logo-bold { font-size: 24px; font-weight: 800; color: var(--dark-bg); }
.logo-sub { background: var(--primary-red); color: white; font-weight: 700; font-size: 12px; padding: 4px 8px; border-radius: 6px; }
.nav-menu { display: flex; gap: 32px; }
.nav-menu a { text-decoration: none; color: #475569; font-weight: 600; font-size: 15px; }

.btn-login-trigger { background: #F1F5F9; color: var(--dark-bg); border: 1px solid #CBD5E1; padding: 10px 20px; border-radius: 10px; font-weight: 700; cursor: pointer; display: flex; align-items: center; gap: 8px; transition: var(--transition); }
.btn-login-trigger:hover { background: var(--dark-bg); color: white; }

/* Hero */
.hero { background: var(--dark-bg); color: white; padding: 170px 0 100px 0; text-align: center; position: relative; }
.hero-badge { display: inline-block; background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.15); padding: 8px 18px; border-radius: 30px; font-size: 14px; margin-bottom: 24px; color: #38BDF8; }
.hero h1 { font-size: 52px; font-weight: 800; line-height: 1.15; margin-bottom: 20px; }
.gradient-text { background: linear-gradient(135deg, #FF6B6B 0%, #E52E2E 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { font-size: 18px; color: var(--text-muted); margin-bottom: 40px; }
.hero-btns { display: flex; justify-content: center; gap: 16px; margin-bottom: 60px; }

.btn { padding: 14px 32px; border-radius: 12px; font-weight: 700; font-size: 16px; cursor: pointer; text-decoration: none; transition: var(--transition); border: none; }
.btn-primary { background: var(--primary-red); color: white; box-shadow: 0 10px 20px rgba(229, 46, 46, 0.3); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: rgba(255, 255, 255, 0.1); color: white; border: 1px solid rgba(255, 255, 255, 0.2); }

.hero-stats { display: flex; justify-content: center; align-items: center; background: rgba(255, 255, 255, 0.03); border: 1px solid rgba(255, 255, 255, 0.08); padding: 30px; border-radius: var(--radius); gap: 40px; }
.stat-item h3 { font-size: 32px; font-weight: 800; }
.stat-divider { width: 1px; height: 40px; background: rgba(255, 255, 255, 0.1); }

/* Courses */
.section { padding: 100px 0; }
.section-title { text-align: center; margin-bottom: 60px; }
.courses-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.course-card { background: white; border: 1px solid var(--border-color); border-radius: var(--radius); padding: 32px; transition: var(--transition); display: flex; flex-direction: column; }
.course-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); }
.card-tag { align-self: flex-start; padding: 6px 12px; border-radius: 8px; font-size: 12px; font-weight: 700; margin-bottom: 20px; }
.card-tag.red { background: #FEE2E2; color: #DC2626; }
.card-tag.blue { background: #DBEAFE; color: #2563EB; }
.card-tag.green { background: #DCFCE7; color: #16A34A; }
.card-footer { display: flex; justify-content: space-between; margin-top: auto; border-top: 1px solid #F1F5F9; padding-top: 20px; font-size: 13px; color: var(--text-muted); }
.link-btn { color: var(--primary-red); text-decoration: none; font-weight: 700; }

/* Contact */
.bg-gradient { background: #F8FAFC; }
.contact-card { display: grid; grid-template-columns: 1fr 1fr; background: white; border-radius: 24px; overflow: hidden; border: 1px solid var(--border-color); }
.contact-info { background: var(--dark-bg); color: white; padding: 60px; }
.contact-form { padding: 60px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.form-group input { width: 100%; padding: 14px 16px; border: 1px solid var(--border-color); border-radius: 10px; }

/* Login Modal */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(11, 19, 42, 0.7); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; z-index: 10000; opacity: 0; pointer-events: none; transition: var(--transition); }
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal-box { background: white; width: 100%; max-width: 440px; border-radius: 24px; padding: 40px; position: relative; transform: translateY(20px); transition: var(--transition); }
.modal-overlay.active .modal-box { transform: translateY(0); }
.modal-close { position: absolute; top: 20px; right: 20px; background: #F1F5F9; border: none; width: 36px; height: 36px; border-radius: 50%; font-size: 20px; cursor: pointer; }
.modal-logo { font-weight: 800; font-size: 20px; margin-bottom: 10px; }
.modal-logo span { color: var(--primary-red); }
.form-options { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 24px; }
.forgot-pass { color: var(--primary-red); text-decoration: none; font-weight: 600; }
.btn-full { width: 100%; }