:root {
  --bg: #f5f8ff;
  --surface: rgba(255,255,255,0.86);
  --surface-strong: #ffffff;
  --line: rgba(17, 24, 39, 0.08);
  --text: #14213d;
  --muted: #52607a;
  --accent: #3a86ff;
  --accent-2: #6dd3ff;
  --accent-soft: rgba(58, 134, 255, 0.12);
  --success: #0c9b74;
  --shadow: 0 18px 48px rgba(20, 33, 61, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --max: 1160px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(109, 211, 255, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(58, 134, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #f7f9ff 0%, #eef4ff 100%);
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, .button { appearance: none; border: 0; background: none; cursor: pointer; font: inherit; }
.container { width: min(var(--max), calc(100% - 2rem)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 30; backdrop-filter: blur(14px);
  background: rgba(247, 249, 255, 0.8); border-bottom: 1px solid rgba(17, 24, 39, 0.05);
}
.site-header .container, .footer-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.site-header .container { min-height: 78px; }
.brand { display: inline-flex; align-items: center; gap: 0.85rem; font-weight: 800; font-size: 1.1rem; letter-spacing: -0.03em; }
.brand-logo {
  width: 46px;
  height: 46px;
  object-fit: contain;
  flex: 0 0 46px;
}
.brand-mark {
  width: 42px; height: 42px; border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 24px rgba(58, 134, 255, 0.28); position: relative;
}
.brand-mark::before, .brand-mark::after { content: ""; position: absolute; inset: 0; margin: auto; border-radius: 999px; }
.brand-mark::before { width: 18px; height: 18px; background: rgba(255,255,255,0.95); top: 10px; left: 11px; box-shadow: 0 10px 0 0 rgba(255,255,255,0.95); }
.brand-mark::after { width: 22px; height: 10px; background: linear-gradient(180deg, rgba(255,255,255,0.18), rgba(255,255,255,0)); top: 7px; left: 10px; }
.nav-links { display: flex; align-items: center; gap: 1.25rem; }
.nav-links a { color: var(--muted); font-weight: 600; transition: color 0.2s ease; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }
.header-actions { display: flex; align-items: center; gap: 0.75rem; }
.mobile-toggle { display: none; width: 42px; height: 42px; border-radius: 12px; background: rgba(17, 24, 39, 0.04); }
.mobile-toggle span, .mobile-toggle::before, .mobile-toggle::after { content: ""; display: block; width: 18px; height: 2px; margin: 4px auto; border-radius: 999px; background: var(--text); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.65rem;
  min-height: 48px; padding: 0.85rem 1.2rem; border-radius: 999px;
  font-weight: 700; transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.btn:hover, .btn:focus-visible { transform: translateY(-1px); }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--accent), #255dc8); box-shadow: 0 16px 28px rgba(58, 134, 255, 0.28); }
.btn-secondary { background: rgba(255,255,255,0.7); border: 1px solid rgba(17,24,39,0.08); }
.btn-ghost { color: var(--muted); background: transparent; }
.hero { padding: 4rem 0 2.75rem; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 2rem; align-items: center; }
.kicker {
  display: inline-flex; align-items: center; gap: 0.55rem; padding: 0.55rem 0.85rem; border-radius: 999px;
  background: rgba(255,255,255,0.72); border: 1px solid rgba(17, 24, 39, 0.06); font-size: 0.92rem; color: var(--muted); margin-bottom: 1.2rem;
}
.hero h1, .section-heading h2 { margin: 0 0 1rem; letter-spacing: -0.05em; line-height: 1.02; }
.hero h1 { font-size: clamp(2.6rem, 5vw, 4.8rem); max-width: 12ch; }
.hero p { max-width: 58ch; font-size: 1.08rem; color: var(--muted); line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin: 1.7rem 0 1.2rem; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 1.25rem; color: var(--muted); font-size: 0.95rem; }
.hero-meta span { display: inline-flex; align-items: center; gap: 0.5rem; }
.hero-card, .panel, .card, .pricing-card, .download-card, .portal-card { background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: var(--radius-xl); }
.hero-card { padding: 1.25rem; }
.app-shot { background: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(245,248,255,0.94)), linear-gradient(135deg, rgba(58, 134, 255, 0.12), rgba(109, 211, 255, 0.1)); border: 1px solid rgba(17,24,39,0.06); border-radius: 22px; padding: 1rem; }
.app-topbar, .mini-toolbar { display: flex; align-items: center; gap: 0.45rem; }
.dot { width: 10px; height: 10px; border-radius: 999px; background: rgba(17,24,39,0.12); }
.mock-grid { display: grid; grid-template-columns: 1fr 0.92fr; gap: 1rem; margin-top: 1rem; }
.mock-column { background: #fff; border: 1px solid rgba(17,24,39,0.05); border-radius: 18px; padding: 0.95rem; }
.mock-title { margin: 0 0 0.8rem; font-size: 0.96rem; font-weight: 700; }
.mock-list, .mock-email { display: grid; gap: 0.6rem; }
.student-pill, .copy-line, .field-line, .bullet-chip { border-radius: 12px; background: rgba(58, 134, 255, 0.08); min-height: 34px; }
.student-pill { padding: 0.65rem 0.8rem; display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; background: rgba(58, 134, 255, 0.08); font-weight: 600; color: var(--text); }
.student-pill small { font-weight: 500; color: var(--muted); }
.copy-line { padding: 0.8rem; background: rgba(17,24,39,0.035); }
.copy-line.short { width: 42%; } .copy-line.medium { width: 72%; } .copy-line.long { width: 92%; } .copy-line.full { width: 100%; }
.section { padding: 4rem 0; } .section.tight { padding-top: 2.5rem; }
.section-heading { display: grid; gap: 0.6rem; margin-bottom: 1.75rem; }
.section-heading p { margin: 0; max-width: 62ch; color: var(--muted); line-height: 1.7; }
.logo-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.9rem; }
.logo-tile, .card, .portal-card, .download-card, .pricing-card { padding: 1.3rem; }
.logo-tile { background: rgba(255,255,255,0.72); border: 1px solid rgba(17,24,39,0.06); border-radius: 18px; text-align: center; font-weight: 700; color: var(--muted); }
.cards-3, .cards-4, .portal-grid, .download-grid, .pricing-grid, .steps-grid { display: grid; gap: 1rem; }
.cards-3 { grid-template-columns: repeat(3, 1fr); } .cards-4 { grid-template-columns: repeat(4, 1fr); }
.portal-grid { grid-template-columns: repeat(3, 1fr); } .download-grid { grid-template-columns: 1.05fr 0.95fr; align-items: start; }
.pricing-grid { grid-template-columns: repeat(5, 1fr); } .steps-grid { grid-template-columns: repeat(3, 1fr); }
.card h3, .pricing-card h3, .download-card h3, .portal-card h3 { margin: 0 0 0.6rem; font-size: 1.1rem; letter-spacing: -0.03em; }
.card p, .pricing-card p, .download-card p, .portal-card p { margin: 0; color: var(--muted); line-height: 1.65; }
.icon-badge { width: 46px; height: 46px; display: inline-grid; place-items: center; border-radius: 14px; background: var(--accent-soft); color: var(--accent); margin-bottom: 0.9rem; font-weight: 800; }
.price { display: flex; align-items: baseline; gap: 0.35rem; margin-bottom: 0.85rem; }
.price strong { font-size: 2rem; letter-spacing: -0.04em; } .price span { color: var(--muted); }
.pricing-card ul, .check-list, .portal-card ul, .download-card ul, .faq-list { padding: 0; margin: 0; list-style: none; }
.pricing-card ul, .portal-card ul, .download-card ul { display: grid; gap: 0.65rem; margin-top: 1rem; }
.pricing-card li, .portal-card li, .download-card li { position: relative; padding-left: 1.3rem; color: var(--muted); }
.pricing-card li::before, .portal-card li::before, .download-card li::before { content: "•"; position: absolute; left: 0; top: 0; color: var(--accent); }
.pricing-card.highlight { border-color: rgba(58, 134, 255, 0.22); background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(241,247,255,0.98)); transform: translateY(-6px); }
.pricing-footer { display: flex; justify-content: center; margin-top: 1.25rem; }
.download-card .meta-stack, .portal-card .meta-stack { display: grid; gap: 0.9rem; margin: 1rem 0 0; }
.meta-row { display: flex; justify-content: space-between; gap: 1rem; color: var(--muted); border-bottom: 1px dashed rgba(17,24,39,0.1); padding-bottom: 0.65rem; }
.meta-row strong { color: var(--text); }
.signal { color: var(--success); font-weight: 700; }
.steps-grid .card { position: relative; padding-top: 3.8rem; }
.step-count { position: absolute; top: 1rem; left: 1rem; width: 34px; height: 34px; border-radius: 999px; display: grid; place-items: center; background: rgba(58, 134, 255, 0.12); color: var(--accent); font-weight: 800; }
.faq-list { display: grid; gap: 0.9rem; }
.faq-item { overflow: hidden; }
.faq-question { width: 100%; padding: 1.15rem 1.2rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; color: var(--text); background: transparent; font-weight: 700; }
.faq-question::after { content: "+"; color: var(--accent); font-size: 1.3rem; line-height: 1; }
.faq-item.is-open .faq-question::after { content: "–"; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.24s ease; padding: 0 1.2rem; }
.faq-answer p { color: var(--muted); line-height: 1.7; margin: 0 0 1.15rem; }
.cta-panel { padding: 2rem; display: grid; grid-template-columns: 1.25fr auto; gap: 1rem; align-items: center; }
.cta-panel h2 { margin: 0 0 0.6rem; font-size: clamp(2rem, 3vw, 3rem); letter-spacing: -0.05em; }
.cta-panel p { margin: 0; color: var(--muted); max-width: 58ch; line-height: 1.7; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: flex-end; }
.footer { padding: 1.4rem 0 2.25rem; }
.footer-top { padding: 1rem 0 0.7rem; }
.footer-copy { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; padding-top: 0.95rem; border-top: 1px solid rgba(17,24,39,0.06); color: var(--muted); font-size: 0.95rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.page-hero { padding: 3rem 0 2rem; }
.page-hero h1 { margin: 0 0 0.8rem; font-size: clamp(2.2rem, 4.3vw, 4rem); letter-spacing: -0.05em; }
.notice { margin-top: 1rem; padding: 1rem 1.05rem; border-radius: 16px; background: rgba(58, 134, 255, 0.08); border: 1px solid rgba(58, 134, 255, 0.12); color: var(--muted); }
.inline-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.2rem; }
@media (max-width: 1120px) {
  .pricing-grid { grid-template-columns: repeat(3, 1fr); }
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
  .portal-grid { grid-template-columns: repeat(2, 1fr); }
  .download-grid, .hero-grid, .cta-panel { grid-template-columns: 1fr; }
  .cta-actions { justify-content: flex-start; }
}
@media (max-width: 840px) {
  .nav-links, .header-actions .btn-ghost, .header-actions .btn-secondary { display: none; }
  .mobile-toggle { display: inline-block; }
  .mobile-menu { display: none; padding: 0 0 1rem; }
  .mobile-menu.is-open { display: grid; gap: 0.7rem; }
  .mobile-menu a { padding: 0.82rem 0.95rem; border-radius: 14px; background: rgba(255,255,255,0.72); border: 1px solid rgba(17,24,39,0.05); font-weight: 600; color: var(--muted); }
  .cards-3, .portal-grid, .steps-grid, .pricing-grid, .logo-strip { grid-template-columns: 1fr; }
  .mock-grid { grid-template-columns: 1fr; }
}