@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Cairo:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --primary: #0055A4;
  --primary-dark: #003d7a;
  --primary-light: #1a6fc4;
  --primary-ultra-light: #e8f1fb;
  --accent: #00B4D8;
  --accent-dark: #0096c7;
  --gold: #f59e0b;
  --gold-light: #fde68a;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --dark: #1e293b;
  --dark-2: #334155;
  --dark-3: #475569;
  --gray: #64748b;
  --gray-light: #94a3b8;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --bg: #ffffff;
  --bg-2: #f8fafc;
  --bg-3: #f1f5f9;
  --text: #1e293b;
  --text-2: #475569;
  --text-3: #64748b;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow: 0 4px 16px rgba(0,85,164,0.10);
  --shadow-lg: 0 8px 32px rgba(0,85,164,0.15);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-ar: 'Cairo', sans-serif;
  --font-en: 'Inter', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-en);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

body.rtl {
  font-family: var(--font-ar);
  direction: rtl;
  text-align: right;
}

body.rtl .nav-links { flex-direction: row-reverse; }
body.rtl .logo-text { letter-spacing: 0; }
body.rtl .hero-content { text-align: right; }
body.rtl .footer-grid { direction: rtl; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-3); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: 70px;
  display: flex;
  align-items: center;
  box-shadow: 0 2px 20px rgba(0,85,164,0.08);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  color: white;
  letter-spacing: -1px;
  box-shadow: 0 4px 12px rgba(0,85,164,0.3);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text span:first-child {
  font-size: 18px;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.logo-text span:last-child {
  font-size: 9px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.nav-search {
  flex: 1;
  max-width: 480px;
  position: relative;
}

.nav-search input {
  width: 100%;
  padding: 10px 20px 10px 48px;
  border: 2px solid var(--border);
  border-radius: 50px;
  font-size: 14px;
  outline: none;
  transition: var(--transition);
  background: var(--bg-2);
  color: var(--text);
}

.nav-search input:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(0,85,164,0.08);
}

.nav-search .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray);
  font-size: 16px;
}

body.rtl .nav-search input { padding: 10px 48px 10px 20px; }
body.rtl .nav-search .search-icon { left: auto; right: 16px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin-left: auto;
}

body.rtl .nav-links { margin-left: 0; margin-right: auto; }

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}

.nav-links a:hover { background: var(--primary-ultra-light); color: var(--primary); }
.nav-links a.active { color: var(--primary); font-weight: 600; }

.lang-switcher {
  display: flex;
  background: var(--bg-3);
  border-radius: 50px;
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  padding: 5px 12px;
  border-radius: 50px;
  border: none;
  background: transparent;
  color: var(--gray);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px rgba(0,85,164,0.3);
}

.btn-nav-login {
  padding: 8px 20px;
  border: 2px solid var(--primary);
  border-radius: 50px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-nav-login:hover { background: var(--primary); color: white; }

.btn-nav-signup {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50px;
  color: white;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0,85,164,0.3);
}

.btn-nav-signup:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,85,164,0.4); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  margin-top: 70px;
  background: linear-gradient(135deg, #001f4d 0%, var(--primary) 40%, var(--primary-light) 70%, var(--accent) 100%);
  padding: 90px 24px;
  position: relative;
  overflow: hidden;
}

.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' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='20'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 80px;
  background: var(--bg);
  clip-path: ellipse(60% 100% at 50% 100%);
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 900;
  color: white;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-content h1 span {
  color: var(--gold);
  display: block;
}

.hero-content p {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 36px;
}

.hero-stat {
  text-align: center;
}

.hero-stat .num {
  font-size: 28px;
  font-weight: 900;
  color: var(--gold);
  display: block;
}

.hero-stat .lbl {
  font-size: 12px;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--gold);
  color: var(--dark);
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(245,158,11,0.4);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(245,158,11,0.5); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: rgba(255,255,255,0.15);
  color: white;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid rgba(255,255,255,0.3);
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover { background: rgba(255,255,255,0.25); border-color: rgba(255,255,255,0.5); }

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 24px;
  padding: 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.hero-card-title {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  color: white;
}

.hero-feature:last-child { border-bottom: none; }

.hero-feature .icon {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.hero-feature .info span {
  display: block;
  font-size: 13px;
  font-weight: 600;
}

.hero-feature .info small {
  font-size: 11px;
  color: rgba(255,255,255,0.6);
}

/* ===== SECTIONS ===== */
.section {
  padding: 80px 24px;
}

.section-alt { background: var(--bg-2); }

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 52px;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-ultra-light);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 14px;
  line-height: 1.25;
}

.section-header h2 span { color: var(--primary); }

.section-header p {
  font-size: 16px;
  color: var(--text-3);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== CATEGORIES ===== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.category-card {
  background: white;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  text-decoration: none;
  color: var(--dark);
  transition: var(--transition);
  cursor: pointer;
  display: block;
}

.category-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.category-card .cat-icon {
  font-size: 36px;
  margin-bottom: 14px;
  display: block;
}

.category-card .cat-name {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.3;
}

.category-card .cat-count {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
}

/* ===== COURSES GRID ===== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.course-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  display: block;
}

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.course-thumb {
  height: 160px;
  position: relative;
  overflow: hidden;
}

.course-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.course-card:hover .course-thumb img { transform: scale(1.05); }

.course-thumb .course-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--gold);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

body.rtl .course-thumb .course-badge { left: auto; right: 12px; }

.course-thumb .course-level {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0,0,0,0.6);
  color: white;
  font-size: 10px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
  backdrop-filter: blur(4px);
}

body.rtl .course-thumb .course-level { right: auto; left: 12px; }

.course-body {
  padding: 18px;
}

.course-category {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.course-title {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
  color: var(--dark);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-instructor {
  font-size: 12px;
  color: var(--text-3);
  margin-bottom: 10px;
}

.course-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
}

.stars {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 1px;
}

.rating-num {
  font-size: 12px;
  font-weight: 700;
  color: var(--gold);
}

.rating-count {
  font-size: 11px;
  color: var(--text-3);
}

.course-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  color: var(--text-3);
  margin-bottom: 14px;
}

.course-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.course-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}

.course-price {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
}

.course-price-old {
  font-size: 12px;
  color: var(--text-3);
  text-decoration: line-through;
  margin-left: 6px;
}

body.rtl .course-price-old { margin-left: 0; margin-right: 6px; }

.btn-enroll {
  padding: 8px 16px;
  background: var(--primary);
  color: white;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-enroll:hover { background: var(--primary-dark); transform: scale(1.05); }

/* ===== FILTERS ===== */
.filters-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  align-items: center;
}

.filter-btn {
  padding: 8px 20px;
  border: 2px solid var(--border);
  border-radius: 50px;
  background: white;
  color: var(--dark-3);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active { background: var(--primary); border-color: var(--primary); color: white; }

/* ===== TESTIMONIALS ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.testimonial-card {
  background: white;
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.testimonial-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.testimonial-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-ultra-light);
}

.testimonial-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
}

.testimonial-role {
  font-size: 12px;
  color: var(--text-3);
}

.testimonial-text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
  font-style: italic;
}

/* ===== INSTRUCTORS ===== */
.instructors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}

.instructor-card {
  background: white;
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.instructor-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: var(--primary); }

.instructor-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 4px solid var(--primary-ultra-light);
}

.instructor-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.instructor-title {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
}

.instructor-stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  font-size: 12px;
  color: var(--text-3);
}

.instructor-stats span strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
}

/* ===== WHY US ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 28px;
}

.why-card {
  padding: 32px 24px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: var(--transition);
  transform-origin: left;
}

.why-card:hover::before { transform: scaleX(1); }
.why-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }

.why-icon {
  width: 60px;
  height: 60px;
  background: var(--primary-ultra-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
  transition: var(--transition);
}

.why-card:hover .why-icon { background: var(--primary); }

.why-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.why-card p {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--accent) 100%);
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(255,255,255,0.06) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(255,255,255,0.04) 0%, transparent 60%);
}

.cta-section h2 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  color: white;
  margin-bottom: 16px;
  position: relative;
}

.cta-section p {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 36px;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

/* ===== FOOTER ===== */
footer {
  background: var(--dark);
  color: rgba(255,255,255,0.8);
  padding: 60px 24px 0;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-text span:first-child { color: white; }

.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  margin: 16px 0 24px;
  line-height: 1.8;
}

.footer-socials {
  display: flex;
  gap: 10px;
}

.social-btn {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  text-decoration: none;
  transition: var(--transition);
}

.social-btn:hover { background: var(--primary); transform: translateY(-2px); }

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  text-decoration: none;
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  transition: var(--transition);
}

.footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
body.rtl .footer-col ul li a:hover { padding-left: 0; padding-right: 4px; }

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}

/* ===== FORMS ===== */
.page-wrapper {
  margin-top: 70px;
  min-height: calc(100vh - 70px);
}

.auth-section {
  display: flex;
  min-height: calc(100vh - 70px);
}

.auth-left {
  flex: 1;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 40px;
}

.auth-right {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 40px;
  background: var(--bg-2);
}

.auth-box {
  background: white;
  border-radius: 24px;
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-xl);
}

.auth-box h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
}

.auth-box p {
  color: var(--text-3);
  font-size: 14px;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark-2);
  margin-bottom: 8px;
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  outline: none;
  transition: var(--transition);
  background: var(--bg-2);
  color: var(--text);
  font-family: inherit;
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--primary);
  background: white;
  box-shadow: 0 0 0 4px rgba(0,85,164,0.08);
}

.btn-full {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(0,85,164,0.3);
}

.btn-full:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,85,164,0.4); }

.auth-divider {
  text-align: center;
  margin: 24px 0;
  position: relative;
  color: var(--gray-light);
  font-size: 13px;
}

.auth-divider::before {
  content: '';
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 1px;
  background: var(--border);
}

.auth-divider span {
  background: white;
  padding: 0 12px;
  position: relative;
}

.auth-link {
  text-align: center;
  font-size: 14px;
  color: var(--text-3);
  margin-top: 20px;
}

.auth-link a { color: var(--primary); font-weight: 600; text-decoration: none; }

/* ===== PAGE HERO ===== */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 60px 24px;
  text-align: center;
  color: white;
}

.page-hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 16px;
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== ABOUT ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 24px;
}

.about-intro img {
  border-radius: var(--radius-lg);
  width: 100%;
  box-shadow: var(--shadow-xl);
}

.about-intro .content h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 20px;
  line-height: 1.2;
}

.about-intro .content p {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: var(--primary);
  padding: 60px 24px;
}

.about-num {
  text-align: center;
  color: white;
}

.about-num .n {
  font-size: 48px;
  font-weight: 900;
  display: block;
  color: var(--gold);
}

.about-num .l {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
}

/* ===== COURSE DETAIL ===== */
.course-detail-hero {
  background: linear-gradient(135deg, #001f4d, var(--primary));
  color: white;
  padding: 60px 24px;
}

.course-detail-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}

.course-detail-info h1 {
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 900;
  margin-bottom: 16px;
  line-height: 1.2;
}

.course-detail-info p {
  font-size: 16px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 20px;
  line-height: 1.7;
}

.course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.course-tag {
  background: rgba(255,255,255,0.15);
  color: white;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
}

.course-detail-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: sticky;
  top: 90px;
}

.course-detail-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.course-detail-card-body {
  padding: 24px;
}

.course-detail-price {
  font-size: 32px;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 20px;
}

.course-detail-card .btn-full { margin-bottom: 12px; }

.course-detail-features {
  list-style: none;
  font-size: 13px;
  color: var(--text-2);
}

.course-detail-features li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.course-detail-features li::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
}

.course-content-section {
  padding: 60px 24px;
}

.course-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 40px;
}

.course-tab {
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray);
  cursor: pointer;
  border: none;
  background: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}

.course-tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.curriculum-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  font-size: 14px;
  transition: var(--transition);
}

.curriculum-item:hover { background: var(--primary-ultra-light); }

/* ===== DASHBOARD ===== */
.dashboard-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: calc(100vh - 70px);
}

.dashboard-sidebar {
  background: white;
  border-right: 1px solid var(--border);
  padding: 32px 0;
}

.sidebar-user {
  padding: 0 24px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
  text-align: center;
}

.sidebar-avatar {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 900;
  color: white;
  margin: 0 auto 12px;
}

.sidebar-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
}

.sidebar-email {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 2px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  transition: var(--transition);
}

.sidebar-nav a:hover { background: var(--primary-ultra-light); color: var(--primary); }
.sidebar-nav a.active { background: var(--primary-ultra-light); color: var(--primary); font-weight: 700; border-right: 3px solid var(--primary); }
body.rtl .sidebar-nav a.active { border-right: none; border-left: 3px solid var(--primary); }

.dashboard-main {
  padding: 40px;
  background: var(--bg-2);
}

.dashboard-header {
  margin-bottom: 36px;
}

.dashboard-header h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 6px;
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 36px;
}

.dash-stat {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
}

.dash-stat:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

.dash-stat-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background: var(--primary-ultra-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.dash-stat-num {
  font-size: 26px;
  font-weight: 900;
  color: var(--primary);
  display: block;
}

.dash-stat-lbl {
  font-size: 13px;
  color: var(--text-3);
}

.enrolled-courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.enrolled-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.enrolled-card:hover { box-shadow: var(--shadow); }

.enrolled-thumb {
  height: 140px;
  overflow: hidden;
}

.enrolled-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.enrolled-body { padding: 16px; }

.enrolled-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
  line-height: 1.4;
}

.progress-bar {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 6px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 3px;
  transition: width 0.8s ease;
}

.progress-text {
  font-size: 11px;
  color: var(--text-3);
}

/* ===== MOBILE NAV ===== */
.mobile-nav {
  display: none;
  position: fixed;
  top: 70px;
  left: 0; right: 0;
  background: white;
  padding: 20px 24px;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  border-top: 1px solid var(--border);
}

.mobile-nav.open { display: block; }

.mobile-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav ul a {
  display: block;
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--dark);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.mobile-nav ul a:hover { background: var(--primary-ultra-light); color: var(--primary); }

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--dark);
  color: white;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
  max-width: 320px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-xl);
}

.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* ===== BREADCRUMB ===== */
.breadcrumb {
  padding: 12px 24px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}

.breadcrumb-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
}

.breadcrumb-inner a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

/* ===== SEARCH BAR (page) ===== */
.search-section {
  background: var(--primary-ultra-light);
  padding: 32px 24px;
  text-align: center;
}

.search-big {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.search-big input {
  width: 100%;
  padding: 16px 24px 16px 56px;
  border: 2px solid var(--border);
  border-radius: 50px;
  font-size: 15px;
  outline: none;
  transition: var(--transition);
  background: white;
  box-shadow: var(--shadow);
}

.search-big input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(0,85,164,0.1); }

.search-big .si {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 20px;
}

body.rtl .search-big input { padding: 16px 56px 16px 24px; }
body.rtl .search-big .si { left: auto; right: 20px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .about-numbers { grid-template-columns: repeat(2, 1fr); }
  .dashboard-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-search { display: none; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-container { grid-template-columns: 1fr; text-align: center; }
  .hero-image { display: none; }
  .hero-stats { justify-content: center; }
  .hero-btns { justify-content: center; }
  .about-intro { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .course-detail-grid { grid-template-columns: 1fr; }
  .course-detail-card { position: static; }
  .dashboard-layout { grid-template-columns: 1fr; }
  .dashboard-sidebar { display: none; }
  .about-numbers { grid-template-columns: repeat(2, 1fr); }
  .dashboard-stats { grid-template-columns: repeat(2, 1fr); }
  .auth-left { display: none; }
}

@media (max-width: 480px) {
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-stats { grid-template-columns: repeat(2, 1fr); }
  .about-numbers { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}