/* ============================================
   CampusConnect — Landing Page
   ============================================ */

/* ---- Top Nav ---- */
.landing-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg-body) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}
.landing-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-md);
}
.brand-mark {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  display: flex; align-items: center; justify-content: center;
  color: var(--color-accent-light);
  font-weight: 800;
  font-size: 1rem;
}
.landing-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.landing-nav-links a:not(.btn) {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}
.landing-nav-links a:not(.btn):hover { color: var(--text-primary); }
.nav-cta-group { display: flex; align-items: center; gap: var(--space-3); }

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: var(--space-12) 0 var(--space-10);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -180px; right: -160px;
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(245,158,11,0.16), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -220px; left: -180px;
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(49,46,129,0.14), transparent 70%);
  pointer-events: none;
}
[data-theme="dark"] .hero::before { background: radial-gradient(circle, rgba(245,158,11,0.10), transparent 70%); }
[data-theme="dark"] .hero::after { background: radial-gradient(circle, rgba(99,102,241,0.16), transparent 70%); }

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}
[data-theme="dark"] .eyebrow { color: var(--color-accent-light); }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--color-accent); }

.hero h1 {
  font-size: var(--fs-4xl);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
}
.hero h1 span {
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 46ch;
  margin-bottom: var(--space-7);
}
.hero-cta-row { display: flex; gap: var(--space-4); align-items: center; flex-wrap: wrap; }
.hero-note { font-size: var(--fs-xs); color: var(--text-muted); margin-top: var(--space-4); }

/* ---- Hero visual: a mock dashboard preview card ---- */
.hero-visual {
  position: relative;
}
.mock-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-5);
  transform: rotate(-1.5deg);
}
.mock-panel-header {
  display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-4);
}
.mock-dot { width: 10px; height: 10px; border-radius: 50%; }
.mock-dot.d1 { background: #ef4444; } .mock-dot.d2 { background: #f59e0b; } .mock-dot.d3 { background: #22c55e; }

.mock-stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); margin-bottom: var(--space-4); }
.mock-stat {
  background: var(--bg-surface-alt);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  text-align: center;
}
.mock-stat b { display: block; font-size: var(--fs-lg); font-family: var(--font-display); }
.mock-stat span { font-size: 0.68rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .03em; }

.mock-task {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  font-size: var(--fs-sm);
}
.mock-check { width: 18px; height: 18px; border-radius: 5px; border: 2px solid var(--border-color-strong); flex-shrink: 0; }
.mock-check.done { background: var(--color-success); border-color: var(--color-success); position: relative; }
.mock-task span.strike { text-decoration: line-through; color: var(--text-muted); }

.floating-badge {
  position: absolute;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-xs);
  font-weight: 700;
  animation: floatY 4s ease-in-out infinite;
}
.floating-badge.b1 { top: -18px; left: -24px; animation-delay: 0s; }
.floating-badge.b2 { bottom: -16px; right: -18px; animation-delay: 1.2s; }
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---- Trusted-by / stat strip ---- */
.stat-strip {
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-6) 0;
}
.stat-strip .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  text-align: center;
}
.stat-strip b { display: block; font-family: var(--font-display); font-size: var(--fs-2xl); color: var(--color-primary); }
[data-theme="dark"] .stat-strip b { color: var(--color-accent-light); }
.stat-strip span { font-size: var(--fs-xs); color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; }

/* ---- Section heading ---- */
.section { padding: var(--space-10) 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto var(--space-8); }
.section-head h2 { font-size: var(--fs-2xl); margin-bottom: var(--space-3); }
.section-head p { color: var(--text-secondary); }

/* ---- Feature Grid ---- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.feature-card {
  padding: var(--space-6);
}
.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: var(--space-4);
  background: var(--bg-surface-alt);
}
.feature-card:nth-child(6n+1) .feature-icon { background: rgba(49,46,129,.1); }
.feature-card:nth-child(6n+2) .feature-icon { background: rgba(245,158,11,.14); }
.feature-card:nth-child(6n+3) .feature-icon { background: rgba(22,163,74,.12); }
.feature-card:nth-child(6n+4) .feature-icon { background: rgba(37,99,235,.12); }
.feature-card:nth-child(6n+5) .feature-icon { background: rgba(220,38,38,.1); }
.feature-card:nth-child(6n+6) .feature-icon { background: rgba(217,119,6,.12); }

.feature-card h3 { font-size: var(--fs-md); margin-bottom: var(--space-2); }
.feature-card p { font-size: var(--fs-sm); color: var(--text-secondary); }

/* ---- CTA banner ---- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(245,158,11,0.25), transparent 55%);
}
.cta-banner > * { position: relative; z-index: 1; }
.cta-banner h2 { color: #fff; font-size: var(--fs-2xl); margin-bottom: var(--space-3); }
.cta-banner p { color: rgba(255,255,255,0.78); margin-bottom: var(--space-6); max-width: 46ch; margin-left: auto; margin-right: auto; }

/* ---- Footer ---- */
.landing-footer {
  border-top: 1px solid var(--border-color);
  padding: var(--space-8) 0 var(--space-6);
}
.footer-top {
  display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-6);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.footer-cols { display: flex; gap: var(--space-8); flex-wrap: wrap; }
.footer-col h5 { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); margin-bottom: var(--space-3); }
.footer-col a { display: block; font-size: var(--fs-sm); color: var(--text-secondary); margin-bottom: var(--space-2); }
.footer-col a:hover { color: var(--color-accent-dark); }
.footer-bottom {
  padding-top: var(--space-5);
  border-top: 1px solid var(--border-color);
  display: flex; justify-content: space-between; align-items: center;
  font-size: var(--fs-xs); color: var(--text-muted); flex-wrap: wrap; gap: var(--space-3);
}

/* ---- Responsive ---- */
@media (max-width: 960px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 420px; margin: 0 auto; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-strip .container { grid-template-columns: repeat(2, 1fr); row-gap: var(--space-5); }
}
@media (max-width: 640px) {
  .landing-nav-links { display: none; }
  .hero h1 { font-size: var(--fs-3xl); }
  .feature-grid { grid-template-columns: 1fr; }
  .hero-cta-row { flex-direction: column; align-items: stretch; }
  .hero-cta-row .btn { width: 100%; }
}