/* Shared ClassMinds navy design system */
:root {
  --blue: #1a6bff;
  --blue-bright: #4d8fff;
  --blue-dim: #0d3a99;
  --navy: #040d1f;
  --navy-mid: #071428;
  --navy-card: #0a1c3a;
  --navy-border: rgba(26,107,255,0.18);
  --white: #f0f4ff;
  --muted: rgba(180,200,255,0.7); /* bumped 2026-04-30 from 0.5 → 0.7 for WCAG AA contrast */
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: hidden;
}
/* Noise overlay removed 2026-04-30 — cleaner navy. */

/* NAV */
nav.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  background: rgba(4,13,31,0.7);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--navy-border);
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  color: var(--white);
  text-decoration: none;
  letter-spacing: -0.5px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.nav-logo-img { height: 32px; width: 32px; display: block; }
.nav-logo-text span { color: var(--blue-bright); }
.nav-links { display: flex; gap: 36px; list-style: none; align-items: center; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }
.nav-cta {
  background: var(--blue);
  color: white !important;
  padding: 9px 22px;
  border-radius: 8px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--blue-bright) !important; transform: translateY(-1px); }

/* Hamburger toggle (hidden on desktop, shown ≤900px) */
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--navy-border);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 0;
  transition: background 0.2s, border-color 0.2s;
}
.nav-toggle:hover {
  background: rgba(26,107,255,0.07);
  border-color: rgba(26,107,255,0.4);
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* PAGE HERO */
.page-hero {
  position: relative;
  padding: 180px 24px 80px;
  text-align: center;
  overflow: hidden;
}
.page-hero-glow {
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 500px;
  background: radial-gradient(ellipse, rgba(26,107,255,0.22) 0%, transparent 70%);
  pointer-events: none;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(26,107,255,0.12);
  border: 1px solid rgba(26,107,255,0.3);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 500;
  color: var(--blue-bright);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.badge-dot { width: 6px; height: 6px; background: var(--blue-bright); border-radius: 50%; }
h1.page-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -2px;
  max-width: 860px;
  margin: 0 auto;
}
h1.page-title .accent {
  background: linear-gradient(135deg, var(--blue-bright), #7eb3ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-sub {
  margin: 24px auto 0;
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--muted);
  max-width: 640px;
  line-height: 1.6;
  font-weight: 300;
}

/* BUTTONS */
.btn-primary {
  background: var(--blue);
  color: white;
  padding: 14px 30px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  box-shadow: 0 0 40px rgba(26,107,255,0.35);
}
.btn-primary:hover { background: var(--blue-bright); transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  color: var(--white);
  padding: 14px 30px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--navy-border);
  display: inline-block;
}
.btn-ghost:hover { border-color: rgba(26,107,255,0.5); background: rgba(26,107,255,0.07); }

/* SECTION */
.section {
  padding: 80px 24px;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.section-tag {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--blue-bright);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.5vw, 44px);
  font-weight: 800;
  letter-spacing: -1.2px;
  line-height: 1.05;
  margin-bottom: 14px;
}
.section-sub {
  font-size: 16px;
  color: var(--muted);
  max-width: 520px;
  line-height: 1.6;
  font-weight: 300;
}

/* CARD */
.card {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: 20px;
  padding: 28px;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.card:hover {
  border-color: rgba(26,107,255,0.4);
  transform: translateY(-2px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.3), 0 0 40px rgba(26,107,255,0.08);
}

/* CTA BAND */
.cta-band {
  margin: 60px 24px 80px;
  background: linear-gradient(135deg, var(--navy-card) 0%, rgba(26,107,255,0.08) 100%);
  border: 1px solid var(--navy-border);
  border-radius: 28px;
  padding: 64px 40px;
  text-align: center;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}
.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.cta-band p {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 28px;
  font-weight: 300;
}

/* FOOTER */
footer {
  border-top: 1px solid var(--navy-border);
  padding: 36px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  position: relative;
  z-index: 1;
}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--white);
  text-decoration: none;
}
.footer-logo span { color: var(--blue-bright); }
.footer-links { display: flex; gap: 28px; list-style: none; flex-wrap: wrap; }
.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
}
.footer-links a:hover { color: var(--white); }
.footer-copy { font-size: 12px; color: rgba(180,200,255,0.25); }

/* Responsive nav (matches live site at ≤900px) */
@media (max-width: 900px) {
  nav.site-nav { padding: 16px 20px; }
  .nav-logo-text { display: none; }
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(4,13,31,0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--navy-border);
    padding: 0 24px;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height 0.3s ease, opacity 0.25s ease, padding 0.3s ease;
  }
  .nav-links.open {
    max-height: 500px;
    opacity: 1;
    padding: 18px 24px 22px;
    pointer-events: auto;
  }
  .nav-links li { list-style: none; }
  .nav-links a {
    display: block;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(26,107,255,0.08);
  }
  .nav-links li:last-child a { border-bottom: none; }
  .nav-links .nav-cta {
    background: transparent !important;
    color: var(--muted) !important;
    padding: 12px 0 !important;
    border-radius: 0;
    font-weight: 500 !important;
    display: block;
    box-shadow: none;
    transform: none !important;
  }
  .nav-links .nav-cta:hover {
    background: transparent !important;
    color: var(--white) !important;
  }
}

@media (max-width: 768px) {
  footer { flex-direction: column; text-align: center; }
}