:root {
  --primary: #4A6CF7;
  --primary-2: #6C4DFF;
  --secondary: #22C55E;
  --accent: #7C3AED;
  --text: #1F2340;
  --muted: #667085;
  --line: #E4E7F2;
  --surface: rgba(255,255,255,0.92);
  --surface-soft: #F7F8FC;
  --surface-strong: #EEF2FF;
  --shadow: 0 20px 60px rgba(41, 61, 133, 0.12);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --max: 1220px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(108, 77, 255, 0.12), transparent 30%),
    radial-gradient(circle at top left, rgba(74, 108, 247, 0.12), transparent 28%),
    linear-gradient(180deg, #F8FAFF 0%, #FFFFFF 36%, #F8FAFF 100%);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(calc(100% - 32px), var(--max)); margin-inline: auto; }
.section { padding: 88px 0; }
.section-sm { padding: 64px 0; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(18px);
  background: rgba(255,255,255,0.8);
  border-bottom: 1px solid rgba(228, 231, 242, 0.9);
}

.nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 1.05rem;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  overflow: hidden;
  background: white;
  display: grid;
  place-items: center;
  box-shadow: 0 14px 30px rgba(74,108,247,0.22);
  border: 1px solid rgba(228, 231, 242, 0.9);
  flex-shrink: 0;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  color: var(--muted);
  font-weight: 700;
  flex-wrap: wrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

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

.menu-btn {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: white;
  font-size: 1.2rem;
  cursor: pointer;
}

.mobile-nav {
  display: none;
  padding: 0 0 18px;
}

.mobile-nav.open { display: block; }
.mobile-nav .nav-links {
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
}

.mobile-nav .nav-links a,
.mobile-nav .nav-links .btn {
  /* background: white; */
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  width: 100%;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: 16px;
  font-weight: 800;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  cursor: pointer;
  white-space: nowrap;
}

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

.btn-primary {
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 18px 32px rgba(74,108,247,0.28);
}

.btn-soft {
  background: white;
  border-color: var(--line);
  color: var(--text);
}

.hero {
  padding: 54px 0 64px;
  overflow: hidden;
}

.hero-grid,
.split,
.contact-grid,
.two-col,
.cards-2,
.cards-3,
.cards-4,
.teachers-grid,
.metrics-grid,
.subjects-grid,
.timeline,
.footer-grid {
  display: grid;
  gap: 20px;
}

.hero-grid,
.split,
.contact-grid,
.two-col {
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
}

.cards-2 { grid-template-columns: repeat(2, 1fr); }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4,
.teachers-grid,
.metrics-grid,
.subjects-grid { grid-template-columns: repeat(4, 1fr); }
.timeline { grid-template-columns: repeat(5, 1fr); }
.footer-grid { grid-template-columns: 1.1fr .9fr; }

.eyebrow,
.section-tag,
.breadcrumbs,
.subject-badge,
.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(74,108,247,0.08);
  color: var(--primary);
  font-weight: 800;
  border: 1px solid rgba(74,108,247,0.12);
}

.breadcrumbs {
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.breadcrumbs a { color: var(--primary); }
.breadcrumbs span { color: var(--muted); }

h1 {
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 1.08;
  margin: 0 0 18px;
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.15;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.18rem;
  line-height: 1.5;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
}

.hero-actions,
.hero-meta,
.inline-actions,
.contact-links,
.filter-links,
.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-actions,
.inline-actions,
.contact-links,
.badge-row { margin-top: 26px; }
.hero-meta { margin-top: 22px; }

.pill,
.subject-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 15px;
  border-radius: 999px;
  background: white;
  border: 1px solid var(--line);
  color: var(--text);
  font-weight: 700;
  box-shadow: 0 10px 26px rgba(41, 61, 133, 0.06);
}

.glass,
.card,
.subject-card,
.teacher-card,
.metric-card,
.timeline-card,
.contact-card,
.cta-box,
.page-panel,
.info-card,
.faq-item {
  background: var(--surface);
  border: 1px solid rgba(228,231,242,0.92);
  border-radius: 26px;
  padding: 24px;
  box-shadow: 0 16px 40px rgba(41,61,133,0.07);
}

.card:hover,
.subject-card:hover,
.teacher-card:hover,
.metric-card:hover,
.timeline-card:hover,
.info-card:hover {
  transform: translateY(-4px);
  transition: transform .2s ease;
}

.icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  color: white;
  font-size: 1.35rem;
  margin-bottom: 16px;
  box-shadow: 0 16px 30px rgba(74,108,247,0.18);
  background: linear-gradient(135deg, var(--primary), var(--accent));
}
.icon.success { background: linear-gradient(135deg, var(--secondary), #16A34A); }
.icon.warning { background: linear-gradient(135deg, #F59E0B, #F79009); }
.icon.pink { background: linear-gradient(135deg, #FF6B8A, #F43F5E); }

.list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text);
  line-height: 1.8;
  font-weight: 600;
}
.check {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: rgba(34,197,94,.14);
  color: #16A34A;
  display: inline-grid;
  place-items: center;
  flex: 0 0 24px;
  font-size: .9rem;
  margin-top: 2px;
}

.phone {
  position: relative;
  max-width: 420px;
  margin-inline: auto;
  padding: 14px;
  border-radius: 38px;
  background: linear-gradient(180deg, #1E233D, #101426);
  box-shadow: 0 30px 90px rgba(16,20,38,0.28);
  border: 1px solid rgba(255,255,255,0.08);
}
.phone-notch {
  width: 130px;
  height: 24px;
  border-radius: 999px;
  background: #080B16;
  margin: 0 auto 12px;
}
.phone-screen {
  background: linear-gradient(180deg, #F6F8FF 0%, #FFFFFF 100%);
  border-radius: 28px;
  padding: 20px;
  min-height: 660px;
}
.screen-card {
  background: white;
  border-radius: 22px;
  padding: 18px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(228,231,242,0.7);
}
.screen-card + .screen-card { margin-top: 16px; }
.screen-row { display:flex; align-items:center; justify-content:space-between; gap:12px; }
.screen-title { font-weight: 900; font-size: 1rem; color: var(--text); }
.screen-muted { color: var(--muted); font-size: .92rem; line-height: 1.7; }
.progress {
  margin-top: 14px;
  height: 12px;
  background: #EEF2FF;
  border-radius: 999px;
  overflow: hidden;
}
.progress > span {
  display:block;
  height:100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.mini-grid { display:grid; grid-template-columns: repeat(2,1fr); gap: 12px; margin-top: 14px; }
.mini-item {
  padding: 14px;
  border-radius: 18px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
}
.mini-item b { display:block; margin-bottom: 6px; font-size: 1.25rem; color: var(--text); }
.mini-item span { color: var(--muted); font-size: .88rem; }

.teacher-photo,
.subject-photo {
  aspect-ratio: 1 / 1;
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(74,108,247,.12), rgba(124,58,237,.14));
  display: grid;
  place-items: center;
}
.teacher-photo img,
.subject-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.teacher-body,
.subject-body { padding-top: 18px; }
.teacher-name,
.subject-name { color: var(--text); }
.teacher-role,
.teacher-grade,
.subject-grade,
.subject-note,
.small-note { font-weight: 700; }
.teacher-role,
.subject-note,
.small-note { color: var(--muted); }

.metric-card h3 { font-size: 2rem; margin-bottom: 8px; }
.subject-card h3, .teacher-card h3 { margin-bottom: 8px; }
.timeline-card { position: relative; }
.timeline-card::before {
  content: attr(data-step);
  position: absolute;
  top: 18px;
  left: 18px;
  width: 38px;
  height: 38px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  font-weight: 900;
  box-shadow: 0 14px 26px rgba(74,108,247,0.22);
}
.timeline-card h3 { padding-top: 34px; }

.section-head { margin-bottom: 28px; }
.section-head p { max-width: 820px; }
.page-hero {
  padding: 48px 0 32px;
}
.page-panel p + p { margin-top: 14px; }

.cta-box {
  background: linear-gradient(135deg, #FFFFFF, #F5F7FF);
}

.faq-list { display: grid; gap: 16px; }
.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
}
.faq-item summary::-webkit-details-marker { display:none; }
.faq-answer { padding-top: 14px; }

.footer {
  padding: 30px 0 46px;
  color: var(--muted);
}
.footer-box {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

.note { margin-top: 12px; color: var(--muted); font-size: .92rem; }
.kicker { margin-bottom: 10px; }
.text-strong { color: var(--text); font-weight: 700; }
.hidden-mobile { display: inline-flex; }

@media (max-width: 1080px) {
  .hero-grid,
  .split,
  .contact-grid,
  .two-col,
  .cards-4,
  .teachers-grid,
  .metrics-grid,
  .subjects-grid,
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .cards-3,
  .timeline { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .nav > .nav-links,
  .hidden-mobile { display: none; }

  .menu-btn {
    display: inline-grid;
    place-items: center;
  }

  .mobile-nav .nav-links {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .hero-grid,
  .split,
  .contact-grid,
  .two-col,
  .cards-2,
  .cards-3,
  .cards-4,
  .teachers-grid,
  .metrics-grid,
  .subjects-grid,
  .timeline,
  .footer-grid { grid-template-columns: 1fr; }

  .section { padding: 72px 0; }
  .phone-screen { min-height: auto; }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 22px), var(--max)); }
  .nav { min-height: 72px; }
  .brand-mark { width: 42px; height: 42px; }
  .btn { width: 100%; }
  .hero-actions,
  .hero-meta,
  .contact-links,
  .inline-actions,
  .filter-links,
  .badge-row { display:grid; grid-template-columns: 1fr; }
  .phone { padding: 12px; border-radius: 30px; }
  .phone-screen { padding: 16px; border-radius: 24px; }
  .glass,
  .card,
  .subject-card,
  .teacher-card,
  .metric-card,
  .timeline-card,
  .contact-card,
  .cta-box,
  .page-panel,
  .info-card,
  .faq-item { padding: 20px; border-radius: 22px; }
}