:root{
  --radius: 28px;
  --container: min(1320px, 94vw);

  --light-bg: #eef5ff;
  --light-bg-2: #f7fbff;
  --light-card: rgba(255,255,255,.88);
  --light-text: #0f172a;
  --light-muted: #5b6880;
  --light-stroke: rgba(15,23,42,.08);
  --light-shadow: 0 24px 70px rgba(37,99,235,.10);

  --dark-bg: #071120;
  --dark-bg-2: #0b1933;
  --dark-card: rgba(8,18,38,.74);
  --dark-text: #eef4ff;
  --dark-muted: rgba(238,244,255,.72);
  --dark-stroke: rgba(255,255,255,.08);
  --dark-shadow: 0 26px 90px rgba(0,0,0,.46);

  --primary: #2563eb;
  --primary-2: #60a5fa;
  --primary-3: #1d4ed8;
  --cyan: #22d3ee;
  --indigo: #4f46e5;
  --gold: #fbbf24;
}

*{ box-sizing:border-box; }

html{
  scroll-behavior: smooth;
}

html, body{
  min-height: 100%;
}

body{
  margin:0;
  font-family: "Cairo", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  overflow-x:hidden;
  direction: rtl;
  transition: background .25s ease, color .25s ease;
}

body.menu-open{
  overflow: hidden;
}

body.theme-light{
  color: var(--light-text);
  background:
    radial-gradient(900px 500px at 10% 10%, rgba(96,165,250,.22), transparent 58%),
    radial-gradient(900px 560px at 90% 15%, rgba(37,99,235,.18), transparent 58%),
    radial-gradient(1000px 600px at 70% 90%, rgba(34,211,238,.10), transparent 60%),
    linear-gradient(180deg, var(--light-bg), var(--light-bg-2));
}

body.theme-dark{
  color: var(--dark-text);
  background:
    radial-gradient(900px 500px at 10% 10%, rgba(96,165,250,.16), transparent 58%),
    radial-gradient(900px 560px at 90% 15%, rgba(37,99,235,.16), transparent 58%),
    radial-gradient(1000px 600px at 70% 90%, rgba(34,211,238,.10), transparent 60%),
    linear-gradient(180deg, var(--dark-bg), var(--dark-bg-2));
}

.container{
  width: var(--container);
  margin: 0 auto;
}

.ui{
  position: relative;
  z-index: 2;
}

/* =========================
   BACKGROUND
========================= */
.bgDecor,
.scienceLayer,
.waves{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bgDecor::before{
  content:"";
  position:absolute;
  inset:-15%;
  background:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px) 0 0 / 72px 72px,
    radial-gradient(circle, rgba(255,255,255,.08) 1px, transparent 1.5px) 0 0 / 22px 22px;
  opacity:.18;
  transform: rotate(7deg);
}

.bgDecor::after{
  content:"";
  position:absolute;
  inset:-20%;
  background:
    radial-gradient(460px 300px at 15% 75%, rgba(96,165,250,.16), transparent 60%),
    radial-gradient(520px 330px at 84% 28%, rgba(37,99,235,.14), transparent 60%),
    radial-gradient(560px 360px at 68% 84%, rgba(34,211,238,.10), transparent 60%);
  filter: blur(28px);
  animation: bgFloat 12s ease-in-out infinite;
}

@keyframes bgFloat{
  0%,100%{ transform: translate3d(0,0,0) scale(1); }
  50%{ transform: translate3d(-18px, 12px, 0) scale(1.03); }
}

.scienceLayer{
  opacity: .9;
}

.scienceLayer .atom,
.scienceLayer .molecule,
.scienceLayer .bubble,
.scienceLayer .hex{
  position:absolute;
  opacity:.28;
  animation: scienceFloat var(--dur, 12s) ease-in-out infinite;
}

.scienceLayer .bubble{
  border-radius:50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.85), rgba(96,165,250,.25), rgba(37,99,235,.08));
  box-shadow: 0 0 24px rgba(96,165,250,.16);
}

.scienceLayer .hex{
  width: 120px;
  height: 68px;
  border: 2px solid rgba(96,165,250,.14);
  border-radius: 16px;
  transform: rotate(28deg);
}

.scienceLayer .molecule{
  width: 16px;
  height: 16px;
  border-radius:50%;
  background: rgba(96,165,250,.34);
  box-shadow:
    30px 24px 0 rgba(37,99,235,.24),
    64px 8px 0 rgba(34,211,238,.24),
    92px 36px 0 rgba(96,165,250,.22);
}

.scienceLayer .molecule::before,
.scienceLayer .molecule::after{
  content:"";
  position:absolute;
  background: rgba(255,255,255,.16);
  height:2px;
  transform-origin:right center;
}

.scienceLayer .molecule::before{
  width:34px;
  right:8px;
  top:12px;
  transform: rotate(34deg);
}

.scienceLayer .molecule::after{
  width:66px;
  right:10px;
  top:8px;
  transform: rotate(-4deg);
}

.scienceLayer .atom{
  width: 140px;
  height: 140px;
  border-radius:50%;
  border: 2px solid rgba(96,165,250,.14);
}

.scienceLayer .atom::before,
.scienceLayer .atom::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:50%;
  border: 2px solid rgba(37,99,235,.12);
}

.scienceLayer .atom::before{ transform: rotate(60deg); }
.scienceLayer .atom::after{ transform: rotate(-60deg); }

.scienceLayer .atom span{
  position:absolute;
  width:14px;
  height:14px;
  border-radius:50%;
  background: rgba(34,211,238,.65);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 46px 0 0 rgba(96,165,250,.45);
}

@keyframes scienceFloat{
  0%,100%{ transform: translate3d(0,0,0); }
  50%{ transform: translate3d(var(--tx, 16px), var(--ty, -14px), 0); }
}

.waves{
  display:none;
}
body.theme-dark .waves{
  display:block;
}
.waves svg{
  width:100%;
  height:100%;
  opacity:.38;
}
.waves path{
  animation: waveMove 10s ease-in-out infinite;
}
.waves path:nth-child(2){ animation-duration: 12s; }
.waves path:nth-child(3){ animation-duration: 14s; }

@keyframes waveMove{
  0%,100%{ transform: translateX(0); }
  50%{ transform: translateX(-38px); }
}

/* =========================
   HEADER
========================= */
.header{
  position: sticky;
  top: 0;
  z-index: 60;
  backdrop-filter: blur(16px);
}

body.theme-light .header{
  background: linear-gradient(180deg, rgba(243,248,255,.92), rgba(243,248,255,.72));
  border-bottom: 1px solid rgba(15,23,42,.06);
}

body.theme-dark .header{
  background: linear-gradient(180deg, rgba(7,17,32,.86), rgba(7,17,32,.55));
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.headerInner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 0;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  color:inherit;
  text-decoration:none;
  min-width:0;
}

.brandLogo{
  width:48px;
  height:48px;
  object-fit:contain;
  flex:0 0 auto;
  border-radius:14px;
  display:block;
}

.brandText{
  font-weight:1000;
  font-size:18px;
  white-space:nowrap;
}

.nav{
  display:flex;
  align-items:center;
  gap:8px;
}

.nav a{
  text-decoration:none;
  color:inherit;
  padding:10px 14px;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  transition:.2s ease;
}

body.theme-light .nav a:hover{
  background: rgba(37,99,235,.06);
}

body.theme-dark .nav a:hover{
  background: rgba(255,255,255,.06);
}

.headerActions{
  display:flex;
  align-items:center;
  gap:10px;
}

.btn{
  height:46px;
  padding:0 16px;
  border:none;
  border-radius:999px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  cursor:pointer;
  font-size:14px;
  font-weight:800;
  white-space:nowrap;
  transition:.2s ease;
}

body.theme-light .btn{
  background: rgba(255,255,255,.90);
  color: var(--light-text);
  border: 1px solid rgba(15,23,42,.08);
  box-shadow: 0 12px 30px rgba(15,23,42,.05);
}

body.theme-dark .btn{
  background: rgba(255,255,255,.06);
  color: var(--dark-text);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 16px 40px rgba(0,0,0,.26);
}

.btn:hover{
  transform: translateY(-2px);
}

.btnPrimary{
  color:#fff !important;
  background: linear-gradient(90deg, var(--primary), var(--primary-2)) !important;
  border: 1px solid rgba(37,99,235,.20) !important;
  box-shadow: 0 18px 40px rgba(37,99,235,.24);
}

.themeToggle,
.burger{
  width:46px;
  padding:0;
}

.burger{
  display:none;
}

/* mobile menu */
.mobileSheet{
  position:fixed;
  inset:0;
  display:none;
  align-items:flex-start;
  justify-content:center;
  padding:16px;
  z-index:90;
}

.mobileSheet.show{
  display:flex;
}

.mobileSheetBackdrop{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.48);
  backdrop-filter:blur(6px);
}

.mobileSheetPanel{
  position:relative;
  width:min(520px, 94vw);
  margin-top:72px;
  border-radius:26px;
  padding:14px;
}

body.theme-light .mobileSheetPanel{
  background:rgba(255,255,255,.96);
  border:1px solid rgba(15,23,42,.10);
  box-shadow: var(--light-shadow);
}

body.theme-dark .mobileSheetPanel{
  background:rgba(8,18,38,.92);
  border:1px solid rgba(255,255,255,.10);
  box-shadow: var(--dark-shadow);
}

.mobileNav{
  display:grid;
  gap:10px;
  padding:8px;
}

.mobileNav a{
  text-decoration:none;
  color:inherit;
  padding:14px 16px;
  border-radius:16px;
  font-weight:700;
}

body.theme-light .mobileNav a{
  background:rgba(37,99,235,.05);
  border:1px solid rgba(37,99,235,.08);
}

body.theme-dark .mobileNav a{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
}

.mobileActions{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  padding:8px;
}

/* =========================
   HERO
========================= */
.hero{
  position:relative;
  padding:88px 0 34px;
}

.heroInner{
  display:grid;
  grid-template-columns: 1.15fr .95fr;
  gap:34px;
  align-items:center;
}

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  border-radius:999px;
  font-size:13px;
  font-weight:900;
}

body.theme-light .badge{
  color: var(--primary-3);
  background: rgba(37,99,235,.08);
  border:1px solid rgba(37,99,235,.14);
}

body.theme-dark .badge{
  color: #dbeafe;
  background: rgba(37,99,235,.16);
  border:1px solid rgba(96,165,250,.16);
}

.neonTitle{
  margin:18px 0 12px;
  font-size: clamp(44px, 7vw, 82px);
  line-height: 1.02;
  letter-spacing: -1px;
  font-weight:1000;
}

body.theme-light .neonTitle{
  color: #10203f;
}

body.theme-dark .neonTitle{
  background: linear-gradient(90deg, #ffffff, #dbeafe, #93c5fd);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 24px rgba(96,165,250,.16);
}

.neonTitle .dot{
  color: var(--primary);
}

.neonSub{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:14px 0 18px;
  min-height:38px;
}

.neonSub .word{
  display:inline-flex;
  align-items:center;
  padding:9px 14px;
  border-radius:999px;
  font-size:14px;
  font-weight:800;
  transition:transform .18s ease;
}

body.theme-light .neonSub .word{
  background: rgba(255,255,255,.85);
  border:1px solid rgba(15,23,42,.08);
  color:var(--light-text);
}

body.theme-dark .neonSub .word{
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
  color:var(--dark-text);
}

.neonSub .highlight{
  color:#fff !important;
  background: linear-gradient(90deg, var(--primary), var(--primary-2)) !important;
}

.heroSubline{
  margin:0 0 24px;
  max-width: 62ch;
  font-size: 17px;
  line-height: 2;
  font-weight:700;
}

body.theme-light .heroSubline{
  color: var(--light-muted);
}

body.theme-dark .heroSubline{
  color: var(--dark-muted);
}

.ctaRow{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

.teacherCard{
  position:relative;
  overflow:hidden;
  border-radius: var(--radius);
  padding:18px;
}

body.theme-light .teacherCard{
  background: var(--light-card);
  border:1px solid var(--light-stroke);
  box-shadow: var(--light-shadow);
}

body.theme-dark .teacherCard{
  background: var(--dark-card);
  border:1px solid var(--dark-stroke);
  box-shadow: var(--dark-shadow);
}

.teacherCard::before{
  content:"";
  position:absolute;
  inset:-40%;
  background:
    radial-gradient(circle at 25% 30%, rgba(96,165,250,.18), transparent 55%),
    radial-gradient(circle at 75% 80%, rgba(37,99,235,.16), transparent 55%),
    radial-gradient(circle at 55% 50%, rgba(34,211,238,.10), transparent 52%);
  filter: blur(24px);
}

.teacherImgWrap{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
}

.teacherImg{
  width:100%;
  height:min(520px, 62vh);
  object-fit:cover;
  display:block;
}

.teacherMeta{
  position:absolute;
  right:14px;
  left:14px;
  bottom:14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 16px;
  border-radius:18px;
  background:rgba(2,6,23,.58);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;
  backdrop-filter: blur(12px);
}

.teacherMeta strong{
  display:block;
  font-size:16px;
}

.teacherMeta span{
  font-size:12px;
  opacity:.88;
}

.teacherEntrance{
  opacity:0;
  transform:translateY(54px);
  animation: teacherUp 1s cubic-bezier(.2,.9,.2,1) forwards .15s;
}

@keyframes teacherUp{
  0%{
    opacity:0;
    transform:translateY(54px) scale(.98);
  }
  100%{
    opacity:1;
    transform:translateY(0) scale(1);
  }
}

/* =========================
   SECTIONS
========================= */
.section{
  padding:54px 0 84px;
  position:relative;
}

.sectionTitle{
  text-align:center;
  margin-bottom:32px;
}

.sectionTitle h2{
  margin:0;
  font-size: clamp(30px, 4vw, 48px);
  letter-spacing:-.5px;
  font-weight:1000;
}

.sectionTitle p{
  margin:12px auto 0;
  max-width: 68ch;
  line-height: 1.95;
  font-size:16px;
}

body.theme-light .sectionTitle p{
  color: var(--light-muted);
}

body.theme-dark .sectionTitle p{
  color: var(--dark-muted);
}

/* =========================
   SUBJECTS
========================= */
.subjectsGrid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap:24px;
}

.subjectCard{
  position:relative;
  display:flex;
  flex-direction:column;
  min-height:100%;
  overflow:hidden;
  border-radius:30px;
  transition:.22s ease;
}

body.theme-light .subjectCard{
  background: var(--light-card);
  border:1px solid var(--light-stroke);
  box-shadow: var(--light-shadow);
}

body.theme-dark .subjectCard{
  background: var(--dark-card);
  border:1px solid var(--dark-stroke);
  box-shadow: var(--dark-shadow);
}

.subjectCard:hover{
  transform: translateY(-6px);
}

.subjectImageWrap{
  position:relative;
  aspect-ratio: 16 / 10;
  overflow:hidden;
}

.subjectImage{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  transition: transform .25s ease;
}

.subjectCard:hover .subjectImage{
  transform: scale(1.06);
}

.subjectImageOverlay{
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(2,6,23,.04), rgba(2,6,23,.62));
}

.subjectTeacherGlass{
  position:absolute;
  right:14px;
  left:14px;
  bottom:14px;
  padding:12px 14px;
  border-radius:18px;
  backdrop-filter: blur(12px);
  background: rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.16);
  color:#fff;
}

.tgName{
  font-weight:900;
  font-size:15px;
}

.tgRole{
  margin-top:4px;
  font-size:12px;
  opacity:.9;
}

.subjectContent{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:22px;
  flex:1 1 auto;
}

.subjectTop{
  display:flex;
  align-items:flex-start;
  gap:12px;
}

.subjectMiniIcon{
  width:54px;
  height:54px;
  border-radius:18px;
  display:flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
  font-size:22px;
}

body.theme-light .subjectMiniIcon{
  background: rgba(37,99,235,.05);
  border:1px solid rgba(37,99,235,.10);
}

body.theme-dark .subjectMiniIcon{
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
}

.subjectTitle{
  margin:0 0 4px;
  font-size:25px;
  font-weight:1000;
}

.subjectGrade{
  margin:0;
  font-size:14px;
  opacity:.84;
  font-weight:700;
}

.subjectPills{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

.pill{
  padding:8px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:800;
}

body.theme-light .pill{
  background: rgba(37,99,235,.05);
  border:1px solid rgba(37,99,235,.08);
}

body.theme-dark .pill{
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
}

.subjectBtn{
  margin-top:auto;
  width:100%;
  height:54px;
  border-radius:18px;
  color:#fff;
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  box-shadow: 0 18px 44px rgba(37,99,235,.20);
}

.subjectCard.purple .subjectBtn{
  background: linear-gradient(90deg, #4f46e5, #60a5fa);
}

.subjectCard.cyan .subjectBtn{
  background: linear-gradient(90deg, #0ea5e9, #2563eb);
}

body.theme-light .subjectCard.pink .subjectTitle{ color:#1d4ed8; }
body.theme-light .subjectCard.purple .subjectTitle{ color:#3730a3; }
body.theme-light .subjectCard.cyan .subjectTitle{ color:#0369a1; }

body.theme-dark .subjectCard.pink .subjectTitle{ color:#bfdbfe; }
body.theme-dark .subjectCard.purple .subjectTitle{ color:#c7d2fe; }
body.theme-dark .subjectCard.cyan .subjectTitle{ color:#a5f3fc; }

/* =========================
   FEATURES
========================= */
.featureGrid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap:20px;
}

.featureCard{
  padding:22px;
  border-radius:24px;
  transition:.22s ease;
}

body.theme-light .featureCard{
  background:#fff;
  border:1px solid rgba(37,99,235,.08);
  box-shadow:0 18px 48px rgba(37,99,235,.08);
}

body.theme-dark .featureCard{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 18px 48px rgba(0,0,0,.24);
}

.featureCard:hover{
  transform: translateY(-4px);
}

.featureRow{
  display:flex;
  align-items:flex-start;
  gap:14px;
}

.featureIconWrap{
  flex:0 0 auto;
}

.featureIcon{
  width:48px;
  height:48px;
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
}

body.theme-light .featureIcon{
  background: rgba(37,99,235,.05);
  border:1px solid rgba(37,99,235,.08);
}

body.theme-dark .featureIcon{
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
}

.featureTitle{
  margin:0 0 8px;
  font-size:18px;
  font-weight:900;
}

.featureDesc{
  margin:0;
  line-height:1.85;
  font-size:14px;
}

body.theme-light .featureDesc{
  color: var(--light-muted);
}

body.theme-dark .featureDesc{
  color: var(--dark-muted);
}

/* =========================
   FOOTER
========================= */
.footer{
  position:relative;
  padding:64px 0 28px;
}

body.theme-light .footer{
  background: rgba(255,255,255,.60);
  border-top:1px solid rgba(15,23,42,.06);
}

body.theme-dark .footer{
  background: linear-gradient(180deg, rgba(7,17,31,.30), rgba(7,17,31,.94));
  border-top:1px solid rgba(255,255,255,.06);
}

.footerGrid{
  display:grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap:24px;
}

.footerCol h4{
  margin:0 0 12px;
  font-size:17px;
  font-weight:900;
}

.footerLinks{
  display:grid;
  gap:10px;
}

.footerLinks a{
  text-decoration:none;
  color:inherit;
  opacity:.88;
}

.footerBrand{
  display:flex;
  align-items:flex-start;
  gap:12px;
}

.footerBrand .logo{
  width:54px;
  height:54px;
  border-radius:18px;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
}

.footerBrand .logo img{
  width:100%;
  height:100%;
  object-fit:contain;
}

body.theme-light .footerBrand .logo{
  background: rgba(37,99,235,.08);
  border:1px solid rgba(37,99,235,.16);
}

body.theme-dark .footerBrand .logo{
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
}

.footerBrand p{
  margin:8px 0 0;
  line-height:1.9;
  font-size:13px;
}

body.theme-light .footerBrand p{
  color: var(--light-muted);
}

body.theme-dark .footerBrand p{
  color: var(--dark-muted);
}

.socialRow{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:14px;
}

.socialBtn{
  width:44px;
  height:44px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  color:inherit;
}

body.theme-light .socialBtn{
  background: rgba(37,99,235,.05);
  border:1px solid rgba(37,99,235,.08);
}

body.theme-dark .socialBtn{
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
}

.copyright{
  margin-top:28px;
  text-align:center;
  font-size:12px;
  opacity:.78;
}

/* =========================
   LOADING
========================= */
.loadingOverlay{
  position:fixed;
  inset:0;
  z-index:9999;
  display:flex;
  align-items:center;
  justify-content:center;
}

body.theme-light .loadingOverlay{
  background:
    radial-gradient(820px 500px at 85% 14%, rgba(59,130,246,.12), transparent 58%),
    radial-gradient(820px 500px at 15% 20%, rgba(96,165,250,.12), transparent 58%),
    linear-gradient(180deg, var(--light-bg), var(--light-bg-2));
}

body.theme-dark .loadingOverlay{
  background:
    radial-gradient(820px 500px at 85% 14%, rgba(59,130,246,.14), transparent 58%),
    radial-gradient(820px 500px at 15% 20%, rgba(96,165,250,.12), transparent 58%),
    linear-gradient(180deg, var(--dark-bg), var(--dark-bg-2));
}

.loadingBox{
  width:min(520px, 92vw);
  padding:24px 20px;
  border-radius:28px;
  text-align:center;
  backdrop-filter:blur(14px);
}

body.theme-light .loadingBox{
  background:rgba(255,255,255,.90);
  border:1px solid rgba(15,23,42,.08);
  box-shadow: var(--light-shadow);
}

body.theme-dark .loadingBox{
  background:rgba(8,18,38,.76);
  border:1px solid rgba(255,255,255,.08);
  box-shadow: var(--dark-shadow);
}

.loadingTitle{
  margin:0;
  font-size:28px;
  font-weight:1000;
}

.loadingLine{
  width:min(360px, 86%);
  height:10px;
  margin:14px auto 16px;
  border-radius:999px;
  overflow:hidden;
}

body.theme-light .loadingLine{
  background:rgba(37,99,235,.08);
}

body.theme-dark .loadingLine{
  background:rgba(255,255,255,.08);
}

.loadingLine span{
  display:block;
  width:45%;
  height:100%;
  border-radius:inherit;
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  animation: move 1s ease-in-out infinite;
}

@keyframes move{
  0%{ transform:translateX(-20%); }
  100%{ transform:translateX(140%); }
}

.loadingSub{
  margin:6px 0 0;
  font-size:13px;
  opacity:.75;
}

.loadingHide{
  animation: fadeOut .35s ease forwards;
}

@keyframes fadeOut{
  to{
    opacity:0;
    transform:scale(.98);
  }
}

/* =========================
   REVEAL
========================= */
.reveal{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .7s ease, transform .7s ease;
}

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

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 1100px){
  .heroInner{
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px){
  .nav{
    display:none;
  }

  .burger{
    display:inline-flex;
  }

  .header .headerActions > a.btn{
    display:none !important;
  }

  .hero{
    padding-top:48px;
  }

  .subjectsGrid,
  .featureGrid,
  .footerGrid{
    grid-template-columns:1fr;
  }

  .teacherImg{
    height:420px;
  }
}

@media (max-width: 767.98px){
  html, body{
    max-width:100%;
    overflow-x:hidden;
  }

  .headerInner{
    padding:12px 0;
  }

  .brandText{
    font-size:15px;
  }

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

  .ctaRow{
    display:grid;
    grid-template-columns:1fr;
  }

  .ctaRow .btn{
    width:100%;
  }

  .section{
    padding:44px 0 66px;
  }
}

@media (max-width: 520px){
  .container{
    width:min(94vw, 100%);
  }

  .teacherImg{
    height:350px;
  }

  .subjectImageWrap{
    aspect-ratio: 4 / 3;
  }

  .subjectContent{
    padding:18px;
  }

  .featureRow{
    align-items:center;
  }

  .neonTitle{
    font-size:36px;
  }
}

/* =========================
   ACCESSIBILITY
========================= */
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation:none !important;
    transition:none !important;
    scroll-behavior:auto !important;
  }

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