/* ============================================
   CIVIL AVIATION TRAINING INSTITUTE (CATI)
   Style Sheet — Professional, Authoritative, Modern
   ============================================ */

/* ===== CSS Custom Properties ===== */
:root {
  /* Brand Colors */
  --primary: #002b5c;
  --primary-dark: #001f42;
  --secondary: #1e5f8e;
  --accent: #d6a145;
  --accent-hover: #b8892e;
  --bg: #f4f7fa;
  --surface: #ffffff;
  --text-main: #1a2a3a;
  --text-muted: #5c6b7a;
  --border: #dce3ed;
  --success: #22c55e;
  --error: #ef4444;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,43,92,0.06), 0 1px 2px rgba(0,43,92,0.04);
  --shadow: 0 4px 6px -1px rgba(0,43,92,0.07), 0 2px 4px -2px rgba(0,43,92,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,43,92,0.08), 0 4px 6px -4px rgba(0,43,92,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,43,92,0.1), 0 8px 10px -6px rgba(0,43,92,0.04);

  /* Transitions */
  --transition-fast: 200ms ease;
  --transition: 300ms ease;
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Container */
  --max-width: 1200px;
  --header-height: 80px;
}

/* ===== Dark Mode ===== */
[data-theme="dark"] {
  --primary: #0a1f3d;
  --primary-dark: #061428;
  --secondary: #2a7fbf;
  --accent: #e8b84c;
  --accent-hover: #d4a43a;
  --bg: #0d1117;
  --surface: #161b22;
  --text-main: #e6edf3;
  --text-muted: #8b949e;
  --border: #30363d;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -2px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4), 0 4px 6px -4px rgba(0,0,0,0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.5), 0 8px 10px -6px rgba(0,0,0,0.4);
}

[data-theme="dark"] .site-header { background: var(--surface); }
[data-theme="dark"] .nav-link:hover { background: rgba(255,255,255,0.05); }
[data-theme="dark"] .nav-link.active { background: rgba(255,255,255,0.08); }
[data-theme="dark"] .trust-bar { border-bottom-color: var(--border); }
[data-theme="dark"] .hero-badge { background: rgba(232,184,76,0.12); border-color: rgba(232,184,76,0.25); }
[data-theme="dark"] .hamburger span { background: var(--text-main); }

/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-main);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary);
}

ul { list-style: none; }

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p { font-size: 1rem; color: var(--text-main); }
.text-small { font-size: 0.875rem; color: var(--text-muted); }
.text-muted { color: var(--text-muted); }

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Section Spacing ===== */
section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 16px auto 0;
  border-radius: 2px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
  min-height: 48px;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  transform: translateX(-100%);
  transition: transform var(--transition);
}

.btn:hover::after {
  transform: translateX(0);
}

.btn-primary {
  background: var(--accent);
  color: var(--primary);
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(214,161,69,0.35);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 6px 20px rgba(214,161,69,0.45);
  transform: translateY(-2px);
  color: var(--primary);
}

.btn-secondary {
  background: transparent;
  color: var(--surface);
  border-color: rgba(255,255,255,0.6);
}

.btn-secondary:hover {
  background: var(--surface);
  color: var(--primary);
  border-color: var(--surface);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

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

.btn-gold-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-gold-outline:hover {
  background: var(--accent);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.8rem;
  min-height: 44px;
}

/* ===== Announcement Bar ===== */
.announcement-bar {
  background: var(--primary);
  color: var(--accent);
  text-align: center;
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: 'Montserrat', sans-serif;
  position: relative;
  z-index: 1001;
}

.announcement-bar a {
  color: var(--surface);
  text-decoration: underline;
}

.announcement-close {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  font-size: 1.2rem;
  padding: 4px;
}

/* ===== Header / Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
}

.logo-icon svg {
  width: 28px;
  height: 28px;
}

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

.logo-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary);
  line-height: 1.2;
}

.logo-subtitle {
  font-family: 'Open Sans', sans-serif;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Navigation */
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 8px;
  transition: all var(--transition-fast);
  text-decoration: none;
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(0,43,92,0.05);
}

.nav-link.active {
  color: var(--primary);
  background: rgba(0,43,92,0.08);
}

.nav-cta {
  margin-left: 16px;
}

/* ===== Dark Mode Toggle ===== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
  margin-left: 8px;
  color: var(--text-muted);
}

.theme-toggle:hover {
  background: rgba(0,43,92,0.08);
  color: var(--accent);
  transform: rotate(15deg);
}

[data-theme="dark"] .theme-toggle:hover {
  background: rgba(255,255,255,0.08);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 100;
}

.hamburger span {
  width: 24px;
  height: 2.5px;
  background: var(--primary);
  border-radius: 2px;
  transition: all var(--transition);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Mobile Menu Overlay ===== */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  transition: opacity var(--transition);
}

.mobile-menu-overlay.open {
  opacity: 1;
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--primary);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.35;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, 
    rgba(0,43,92,0.92) 0%, 
    rgba(0,43,92,0.7) 50%, 
    rgba(30,95,142,0.6) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 120px 0 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(214,161,69,0.15);
  border: 1px solid rgba(214,161,69,0.3);
  padding: 8px 18px;
  border-radius: 50px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}

.hero h1 {
  color: var(--surface);
  margin-bottom: 20px;
  font-size: clamp(2.2rem, 5vw, 3.75rem);
  line-height: 1.1;
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  max-width: 580px;
  line-height: 1.7;
}

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

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.hero-stat-value {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.8rem;
  color: var(--accent);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

/* ===== Trust Indicators ===== */
.trust-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 32px 0;
}

.trust-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.trust-item .trust-icon {
  font-size: 1.5rem;
}

.trust-stars {
  color: var(--accent);
  font-size: 1.1rem;
  letter-spacing: 2px;
}

.trust-rating {
  font-weight: 700;
  color: var(--primary);
}

/* ===== Course Cards Grid ===== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.course-card {
  background: var(--surface);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid var(--border);
}

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

.course-card-image {
  height: 200px;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.course-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 60%, rgba(0,43,92,0.6));
}

.course-card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--accent);
  color: var(--primary);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  padding: 4px 12px;
  border-radius: 20px;
  z-index: 2;
}

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

.course-card-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.course-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.course-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

.course-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.course-duration {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.course-link {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--accent);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
}

.course-link:hover {
  color: var(--accent-hover);
  gap: 8px;
}

/* ===== Why Choose Us ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--surface);
  padding: 36px 28px;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid transparent;
}

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

.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 20px;
  transition: all var(--transition);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(-5deg);
  border-radius: 12px;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== About Section ===== */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  height: 400px;
  background-size: cover;
  background-position: center;
  position: relative;
  isolation: isolate;
}

.about-image-accent {
  position: absolute;
  bottom: -16px;
  right: -16px;
  width: 100px;
  height: 100px;
  background: var(--accent);
  border-radius: 16px;
  z-index: -1;
}

.about-content h2 {
  margin-bottom: 16px;
}

.about-content p {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 28px;
}

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

.about-stat-value {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--accent);
}

.about-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ===== Testimonials ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.testimonial-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid var(--border);
  position: relative;
}

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

.testimonial-quote {
  font-size: 2.5rem;
  color: var(--accent);
  opacity: 0.3;
  margin-bottom: 8px;
  line-height: 1;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--surface);
  flex-shrink: 0;
}

.testimonial-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--primary);
}

.testimonial-course {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== FAQ Accordion ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border-radius: 12px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--secondary);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--primary);
  text-align: left;
  gap: 16px;
  transition: all var(--transition-fast);
}

.faq-question:hover {
  color: var(--secondary);
}

.faq-icon {
  font-size: 1.2rem;
  transition: transform var(--transition);
  flex-shrink: 0;
  color: var(--accent);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition);
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Final CTA ===== */
.cta-section {
  background: var(--primary);
  position: relative;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 80px 0;
}

.cta-content h2 {
  color: var(--surface);
  margin-bottom: 16px;
}

.cta-content p {
  color: rgba(255,255,255,0.8);
  font-size: 1.1rem;
  max-width: 550px;
  margin: 0 auto 32px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo-title {
  color: var(--surface);
}

.footer-brand .logo-subtitle {
  color: rgba(255,255,255,0.5);
}

.footer-description {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  margin-top: 16px;
  line-height: 1.7;
  max-width: 360px;
}

.footer-heading {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--surface);
  margin-bottom: 20px;
}

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

.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover {
  color: var(--accent);
  transform: translateX(4px);
}

.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
}

.footer-contact-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contact-item a {
  color: rgba(255,255,255,0.6);
}

.footer-contact-item a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--accent);
  transform: translateY(-3px);
}

/* ===== Floating Buttons ===== */
.floating-buttons {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  gap: 0;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
}

.floating-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 56px;
}

.floating-btn-call {
  background: var(--secondary);
  color: var(--surface);
}

.floating-btn-call:hover { background: #1a5280; color: var(--surface); }

.floating-btn-enquire {
  background: var(--accent);
  color: var(--primary);
}

.floating-btn-enquire:hover { background: var(--accent-hover); color: var(--primary); }

/* ===== WhatsApp Float ===== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 4px 16px rgba(37,211,102,0.4);
  z-index: 999;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37,211,102,0.5);
}

/* ===== Page Header (Inner Pages) ===== */
.page-header {
  background: var(--primary);
  padding: 120px 0 60px;
  position: relative;
  overflow: hidden;
}

.page-header-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.1;
}

.page-header-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.page-header h1 {
  color: var(--surface);
  margin-bottom: 12px;
}

.page-breadcrumb {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}

.page-breadcrumb a {
  color: var(--accent);
}

.page-breadcrumb span {
  margin: 0 8px;
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: 10px;
  font-family: 'Open Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--text-main);
  background: var(--surface);
  transition: all var(--transition-fast);
  min-height: 48px;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--secondary);
  box-shadow: 0 0 0 4px rgba(30,95,142,0.1);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--error);
  box-shadow: 0 0 0 4px rgba(239,68,68,0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  font-size: 0.8rem;
  color: var(--error);
  margin-top: 4px;
  display: none;
}

.form-error.show {
  display: block;
}

.form-success {
  background: rgba(34,197,94,0.1);
  border: 1px solid var(--success);
  border-radius: 12px;
  padding: 20px 24px;
  text-align: center;
  display: none;
}

.form-success.show {
  display: block;
}

.form-success h3 {
  color: var(--success);
  margin-bottom: 8px;
}

/* ===== Gallery Grid ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.gallery-item {
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  aspect-ratio: 4/3;
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.gallery-item:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 50%, rgba(0,43,92,0.8));
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 20px;
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--surface);
}

/* Gallery Filter */
.gallery-filters {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.gallery-filter {
  padding: 8px 20px;
  border-radius: 50px;
  border: 2px solid var(--border);
  background: var(--surface);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.gallery-filter:hover {
  border-color: var(--secondary);
  color: var(--secondary);
}

.gallery-filter.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--surface);
}

/* ===== Contact Page ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-info-text h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.contact-info-text p,
.contact-info-text a {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.map-container {
  margin-top: 48px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  height: 400px;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ===== Courses Detail Page ===== */
.course-detail-hero {
  background: var(--primary);
  padding: 120px 0 40px;
  position: relative;
}

.course-detail-body {
  padding: 40px 0 80px;
}

.course-detail-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: start;
}

.course-detail-sidebar {
  position: sticky;
  top: 100px;
}

.sidebar-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.sidebar-card h3 {
  font-size: 1rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.sidebar-info-item {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-info-item:last-child {
  border-bottom: none;
}

.sidebar-info-label {
  color: var(--text-muted);
}

.sidebar-info-value {
  font-weight: 600;
  font-family: 'Montserrat', sans-serif;
  color: var(--primary);
}

.sidebar-cta {
  margin-top: 20px;
}

.sidebar-cta .btn {
  width: 100%;
  justify-content: center;
}

/* ===== Admissions Page ===== */
.admissions-process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  counter-reset: step;
}

.process-step {
  background: var(--surface);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  position: relative;
  transition: all var(--transition);
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.process-step-number {
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  margin: 0 auto 16px;
}

.process-step h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===== Page Content ===== */
.page-content {
  padding: 60px 0;
}

.page-content-inner {
  max-width: 800px;
  margin: 0 auto;
}

.page-content-inner h2 {
  margin: 40px 0 16px;
}

.page-content-inner h2:first-child {
  margin-top: 0;
}

.page-content-inner h3 {
  margin: 32px 0 12px;
}

.page-content-inner p {
  margin-bottom: 16px;
  color: var(--text-muted);
  line-height: 1.7;
}

.page-content-inner ul {
  margin-bottom: 16px;
  padding-left: 0;
}

.page-content-inner ul li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--text-muted);
}

.page-content-inner ul li::before {
  content: '✈';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ===== Responsive: Tablet ===== */
@media (max-width: 1024px) {
  .about-split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .course-detail-layout {
    grid-template-columns: 1fr;
  }

  .course-detail-sidebar {
    position: static;
  }
}

/* ===== Responsive: Mobile ===== */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-list {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--surface);
    flex-direction: column;
    padding: 100px 24px 24px;
    gap: 8px;
    box-shadow: -4px 0 20px rgba(0,0,0,0.1);
    transition: right var(--transition-slow);
    z-index: 999;
    overflow-y: auto;
  }

  .nav-list.open {
    right: 0;
  }

  .mobile-menu-overlay {
    display: block;
    pointer-events: none;
  }

  .mobile-menu-overlay.open {
    pointer-events: all;
  }

  .nav-link {
    font-size: 1.1rem;
    padding: 14px 20px;
    width: 100%;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: 12px;
    width: 100%;
  }

  .nav-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    padding: 100px 0 60px;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 24px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .trust-inner {
    gap: 24px;
  }

  section {
    padding: 60px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .floating-buttons {
    display: flex;
  }

  .whatsapp-float {
    bottom: 72px;
    width: 48px;
    height: 48px;
    font-size: 1.3rem;
  }

  .page-header {
    padding: 100px 0 40px;
  }

  .h1 { font-size: 2rem; }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Responsive: Small Mobile ===== */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .courses-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .admissions-process {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ===== File Input Styles ===== */
.file-input-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.file-input-wrapper input[type="file"] {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  top: 0;
  left: 0;
}

.file-input-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 28px 20px;
  border: 2px dashed var(--border);
  border-radius: 12px;
  background: var(--bg);
  transition: all var(--transition-fast);
  cursor: pointer;
  min-height: 120px;
  position: relative;
}

.file-input-area:hover {
  border-color: var(--accent);
  background: rgba(214,161,69,0.04);
}

.file-input-area.has-file {
  border-color: var(--secondary);
  background: rgba(30,95,142,0.04);
  padding: 16px;
}

.file-input-icon {
  font-size: 2rem;
  color: var(--text-muted);
}

.file-input-text {
  font-family: 'Open Sans', sans-serif;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
}

.file-input-text strong {
  color: var(--secondary);
}

.file-preview {
  display: none;
  width: 100%;
  max-height: 200px;
  border-radius: 8px;
  overflow: hidden;
  object-fit: cover;
  object-position: center;
}

.file-preview.show {
  display: block;
}

.file-input-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.file-input-row .file-input-wrapper {
  flex: 1;
}

.file-input-row .file-url-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.file-input-row .file-url-toggle:hover {
  border-color: var(--secondary);
  color: var(--secondary);
}

/* ============================================
   ADMIN PORTAL STYLES
   ============================================ */
.admin-login {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 24px;
}

.admin-login-card {
  background: var(--surface);
  border-radius: 20px;
  padding: 48px 40px;
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 420px;
  text-align: center;
  border: 1px solid var(--border);
}

.admin-login-card h1 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.admin-login-card p {
  color: var(--text-muted);
  margin-bottom: 28px;
}

.admin-login-error {
  color: var(--error);
  font-size: 0.85rem;
  margin-top: 12px;
  display: none;
}

.admin-login-error.show { display: block; }

/* Admin Dashboard */
.admin-dashboard {
  display: none;
  min-height: 100vh;
  background: var(--bg);
}

.admin-dashboard.show { display: block; }

.admin-topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.admin-topbar h2 {
  font-size: 1.2rem;
}

.admin-topbar-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.admin-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px;
}

.admin-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 28px;
  background: var(--surface);
  padding: 6px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.admin-tab {
  flex: 1;
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  background: transparent;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.admin-tab:hover { color: var(--text-main); }
.admin-tab.active { background: var(--accent); color: var(--primary); }

.admin-panel { display: none; }
.admin-panel.active { display: block; }

.admin-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-bottom: 24px;
}

.admin-card h3 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.admin-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.admin-form-grid .full-width {
  grid-column: 1 / -1;
}

.admin-form-grid .file-column {
  grid-column: span 2;
}

@media (min-width: 769px) {
  .admin-form-grid .file-column {
    grid-column: 1;
  }
}

.admin-item-list {
  display: grid;
  gap: 12px;
}

.admin-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg);
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: all var(--transition-fast);
}

.admin-item:hover { border-color: var(--accent); }

.admin-item-img {
  width: 64px;
  height: 48px;
  border-radius: 8px;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}

.admin-item-info {
  flex: 1;
  min-width: 0;
}

.admin-item-info h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.admin-item-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.admin-item-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.btn-danger {
  background: var(--error);
  color: white;
  border-color: var(--error);
}

.btn-danger:hover {
  background: #dc2626;
  border-color: #dc2626;
  color: white;
}

.btn-edit {
  background: var(--secondary);
  color: white;
  border-color: var(--secondary);
}

.btn-edit:hover {
  background: #1a5280;
  color: white;
}

.admin-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--primary);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 6px;
}

.admin-empty {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

.admin-empty p { font-size: 1rem; }

/* ============================================
   STUDENT PORTAL STYLES
   ============================================ */
/* Auth Pages (Signup / Login) */
.auth-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  max-width: 960px;
  margin: 0 auto;
}

.auth-card {
  background: var(--surface);
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.auth-header {
  text-align: center;
  margin-bottom: 28px;
}

.auth-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.auth-header h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.auth-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.auth-name-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.auth-alt {
  text-align: center;
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.auth-alt a {
  color: var(--secondary);
  font-weight: 600;
  font-family: 'Montserrat', sans-serif;
}

.form-error-global {
  background: rgba(239,68,68,0.1);
  border: 1px solid var(--error);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 0.85rem;
  color: var(--error);
  margin-bottom: 20px;
  display: none;
  text-align: center;
}

.form-error-global.show { display: block; }

.auth-info {
  background: var(--surface);
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  position: sticky;
  top: 100px;
}

.auth-info h3 {
  font-size: 1.3rem;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
}

.auth-info ul li {
  padding: 10px 0;
  font-size: 0.95rem;
  color: var(--text-main);
  border-bottom: 1px solid var(--border);
}

.auth-info ul li:last-child { border-bottom: none; }

/* Student Profile */
.student-profile {
  background: var(--surface);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 32px;
  position: relative;
  top: -40px;
}

.student-profile-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--surface);
  flex-shrink: 0;
  box-shadow: 0 0 0 4px var(--accent);
}

.student-profile-info {
  flex: 1;
}

.student-profile-info h2 {
  font-size: 1.4rem;
  margin-bottom: 2px;
}

.student-profile-info p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.student-profile-actions {
  flex-shrink: 0;
}

/* Student Sections */
.student-section {
  margin-bottom: 32px;
}

.student-section h3 {
  font-size: 1.2rem;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
}

.student-courses-list {
  display: grid;
  gap: 16px;
}

.student-course-card {
  background: var(--surface);
  border-radius: 14px;
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all var(--transition-fast);
}

.student-course-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.student-course-img {
  width: 100px;
  height: 70px;
  border-radius: 10px;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
  position: relative;
}

.student-course-body {
  flex: 1;
  min-width: 0;
}

.student-course-body h4 {
  font-size: 1rem;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.student-course-body .course-duration {
  font-size: 0.78rem;
  margin-bottom: 6px;
  display: inline-block;
}

.student-course-body p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.student-course-action {
  flex-shrink: 0;
}

.student-empty {
  text-align: center;
  padding: 40px 24px;
  background: var(--surface);
  border-radius: 14px;
  border: 2px dashed var(--border);
  color: var(--text-muted);
}

.student-empty p {
  font-size: 0.95rem;
}

/* Feedback Toast */
.student-feedback {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 14px 28px;
  border-radius: 12px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  z-index: 9999;
  opacity: 0;
  transition: all var(--transition);
  pointer-events: none;
  box-shadow: var(--shadow-xl);
}

.student-feedback.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.student-feedback.feedback-success {
  background: var(--success);
  color: white;
}

.student-feedback.feedback-error {
  background: var(--error);
  color: white;
}

/* Responsive */
@media (max-width: 768px) {
  .auth-container {
    grid-template-columns: 1fr;
  }

  .auth-info {
    display: none;
  }

  .auth-card {
    padding: 28px 20px;
  }

  .auth-name-row {
    grid-template-columns: 1fr;
  }

  .student-profile {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }

  .student-course-card {
    flex-direction: column;
    text-align: center;
  }

  .student-course-img {
    width: 100%;
    height: 120px;
  }

  .student-course-action {
    width: 100%;
  }

  .student-course-action .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .student-profile-avatar {
    width: 60px;
    height: 60px;
    font-size: 1.2rem;
  }
}