/* ============================================================
   ONLINE LEARNING INSTITUTE — Professional Stylesheet
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,600;0,700;1,500&family=Poppins:wght@400;500;600;700&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  --primary:       #6c63ff;
  --primary-dark:  #4f46e5;
  --primary-glow:  rgba(108, 99, 255, 0.25);
  --secondary:     #f59e0b;
  --accent:        #10b981;
  --bg:            #0a0b14;
  --bg-card:       #111224;
  --bg-card2:      #161830;
  --border:        rgba(108, 99, 255, 0.18);
  --text:          #e2e8f0;
  --text-muted:    #94a3b8;
  --text-light:    #cbd5e1;
  --white:         #ffffff;
  --radius:        16px;
  --radius-sm:     10px;
  --shadow:        0 20px 60px rgba(0,0,0,0.5);
  --shadow-card:   0 8px 32px rgba(0,0,0,0.4);
  --transition:    0.35s cubic-bezier(0.4,0,0.2,1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a { text-decoration: none; color: inherit; }

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

/* ============================================================
   PAGE LOADER
   ============================================================ */
#page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#page-loader.hidden { opacity: 0; visibility: hidden; }

.loader-ring {
  width: 56px;
  height: 56px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
.loader-text {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.05em;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 18px 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
#navbar.scrolled {
  background: rgba(10, 11, 20, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 4px 30px rgba(0,0,0,0.5);
  padding: 12px 5%;
}

.nav-logo {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white) !important;
  padding: 10px 22px;
  border-radius: 50px;
  font-weight: 600 !important;
  font-size: 0.875rem !important;
  box-shadow: 0 4px 20px var(--primary-glow);
  transition: transform var(--transition), box-shadow var(--transition) !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--primary-glow) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO SECTION
   ============================================================ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('images/institute.jpg') center center / cover no-repeat;
  transform: scale(1.05);
  transition: transform 10s ease;
}
#hero:hover .hero-bg { transform: scale(1); }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 11, 20, 0.92) 0%,
    rgba(79, 70, 229, 0.35) 60%,
    rgba(10, 11, 20, 0.85) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 20px;
  max-width: 800px;
}

.hero-eyebrow {
  display: inline-block;
  background: rgba(108, 99, 255, 0.15);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 7px 18px;
  border-radius: 50px;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 20px;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  padding: 15px 34px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  box-shadow: 0 8px 32px var(--primary-glow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px var(--primary-glow);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 2px solid rgba(255,255,255,0.2);
  color: var(--white);
  padding: 13px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  backdrop-filter: blur(10px);
  transition: border-color var(--transition), background var(--transition);
}
.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(108, 99, 255, 0.12);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.scroll-dot {
  width: 28px;
  height: 44px;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 14px;
  position: relative;
}
.scroll-dot::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--primary);
  border-radius: 2px;
  animation: scrollBounce 1.8s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { top: 6px; opacity: 1; }
  50%       { top: 18px; opacity: 0.4; }
}

/* ============================================================
   STATS STRIP
   ============================================================ */
.stats-strip {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card2) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 50px 5%;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.stat-item {
  padding: 20px;
  position: relative;
}
.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 15%;
  height: 70%;
  width: 1px;
  background: var(--border);
}

.stat-number {
  font-family: 'Poppins', sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ============================================================
   SHARED SECTION STYLES
   ============================================================ */
.section {
  padding: 100px 5%;
}

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

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-label {
  display: inline-block;
  background: rgba(108,99,255,0.12);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 18px;
}
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.2;
}
.section-title .italic { font-style: italic; color: var(--primary); }

.section-divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
  margin: 0 auto 20px;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ============================================================
   COURSES SECTION (Duration Filter)
   ============================================================ */
#courses { background: var(--bg); }

.duration-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.duration-tab {
  padding: 12px 28px;
  border-radius: 50px;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}
.duration-tab:hover, .duration-tab.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  border-color: var(--primary);
  box-shadow: 0 6px 24px var(--primary-glow);
  transform: translateY(-2px);
}

.courses-panel { display: none; }
.courses-panel.active { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 28px; }

.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}
.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}
.course-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 60px rgba(108,99,255,0.18);
  border-color: var(--primary);
}
.course-card:hover::before { transform: scaleX(1); }

.course-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(108,99,255,0.2), rgba(245,158,11,0.1));
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}
.course-card h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
}
.course-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}
.course-card-meta {
  display: flex;
  align-items: center;
  gap: 14px;
}
.course-badge {
  display: inline-block;
  background: rgba(16,185,129,0.12);
  border: 1px solid rgba(16,185,129,0.3);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
}
.course-arrow {
  margin-left: auto;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1rem;
  transition: var(--transition);
}
.course-card:hover .course-arrow {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: rotate(45deg);
}

/* ============================================================
   POPULAR COURSES (Cards with icons)
   ============================================================ */
#popular { background: var(--bg-card); }

.popular-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.popular-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.popular-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}
.popular-card-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}
.popular-card-icon {
  font-size: 2rem;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(108,99,255,0.15), rgba(245,158,11,0.08));
  border-radius: 12px;
  border: 1px solid var(--border);
}
.popular-card h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
}
.popular-card-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.popular-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 18px;
}
.popular-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.popular-card-rating {
  font-size: 0.82rem;
  color: var(--secondary);
  font-weight: 600;
}
.popular-card-enroll {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
#about { background: var(--bg); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-images-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.about-img-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}
.about-img-wrap.tall { grid-row: span 2; }
.about-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.about-img-wrap:hover img { transform: scale(1.06); }
.about-img-wrap-short { height: 200px; }

.about-content .section-label { display: block; text-align: left; margin-bottom: 16px; }
.about-content .section-title { text-align: left; margin-bottom: 12px; }
.about-content .section-divider { margin: 0 0 20px; }

.about-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 30px;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}
.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.about-feature-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 10px;
  background: rgba(108,99,255,0.12);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.about-feature-text strong {
  display: block;
  color: var(--white);
  font-weight: 600;
  margin-bottom: 3px;
  font-size: 0.95rem;
}
.about-feature-text span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============================================================
   VIDEO SECTION
   ============================================================ */
#video-section {
  background: var(--bg-card);
  padding: 80px 5%;
  text-align: center;
}
.video-wrapper {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(108,99,255,0.25);
  border: 1px solid var(--border);
}
.video-wrapper iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  border: none;
}

/* ============================================================
   REGISTRATION SECTION
   ============================================================ */
#register { background: var(--bg); }

.register-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.register-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}
.register-info-card h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}
.register-info-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 28px;
  line-height: 1.75;
}
.register-benefits { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.register-benefit {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-light);
}
.benefit-check {
  width: 24px;
  height: 24px;
  min-width: 24px;
  border-radius: 50%;
  background: rgba(16,185,129,0.15);
  border: 1px solid rgba(16,185,129,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
}

.register-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px;
}
.form-title {
  font-family: 'Poppins', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}
.form-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.03em;
}
.form-control {
  background: rgba(255,255,255,0.04);
  border: 1.5px solid var(--border);
  color: var(--white);
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: 'Inter', sans-serif;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-control::placeholder { color: rgba(148,163,184,0.5); }
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}
.form-control option {
  background: var(--bg-card);
  color: var(--text);
}
textarea.form-control { resize: vertical; min-height: 110px; }

.form-submit {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 8px 24px var(--primary-glow);
  letter-spacing: 0.03em;
  margin-top: 8px;
}
.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px var(--primary-glow);
}

/* ============================================================
   GALLERY / ABOUT IMAGES
   ============================================================ */
.gallery-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.gallery-img {
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.gallery-img img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.gallery-img:hover img { transform: scale(1.07); }
.gallery-caption {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,11,20,0.85) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 16px;
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
}
.gallery-img:hover .gallery-caption { opacity: 1; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 70px 5% 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto 50px;
}

.footer-logo {
  font-family: 'Poppins', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 14px;
}
.footer-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 24px;
}
.footer-socials { display: flex; gap: 12px; }
.social-link {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  transform: translateY(-3px);
}

.footer-col-title {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--white);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-links a:hover { color: var(--primary); padding-left: 6px; }

.footer-contact-items { display: flex; flex-direction: column; gap: 14px; }
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}
.footer-contact-item .icon { font-size: 1rem; margin-top: 1px; }

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============================================================
   TOAST
   ============================================================ */
#toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9999;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  padding: 14px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 12px 40px rgba(108,99,255,0.4);
  transform: translateY(120%);
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}
#toast.show { transform: translateY(0); opacity: 1; }

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }
.reveal-delay-3 { transition-delay: 0.36s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .about-grid          { grid-template-columns: 1fr; gap: 40px; }
  .register-grid       { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid         { grid-template-columns: 1fr 1fr; gap: 36px; }
  .stats-grid          { grid-template-columns: repeat(2, 1fr); }
  .stat-item:not(:last-child)::after { display: none; }
  .gallery-grid-4      { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section             { padding: 70px 5%; }
  .hero-title          { font-size: 2.2rem; }

  /* Navbar */
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 75%;
    max-width: 320px;
    height: 100vh;
    background: rgba(10,11,20,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    transition: right var(--transition);
    border-left: 1px solid var(--border);
  }
  .nav-links.open { right: 0; }
  .nav-links a { font-size: 1.1rem; }
  .hamburger { display: flex; }

  .form-row            { grid-template-columns: 1fr; }
  .footer-grid         { grid-template-columns: 1fr; }
  .about-images-grid   { grid-template-columns: 1fr; }
  .gallery-grid-4      { grid-template-columns: 1fr 1fr; }
  .popular-grid        { grid-template-columns: 1fr; }
  .courses-panel.active{ grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-actions        { flex-direction: column; align-items: center; }
  .stats-grid          { grid-template-columns: 1fr 1fr; }
  .gallery-grid-4      { grid-template-columns: 1fr; }
  .register-form-wrap  { padding: 28px 20px; }
  .register-info-card  { padding: 28px 20px; }
  .footer-bottom       { text-align: center; justify-content: center; }
}