/* 1116 Courses — plural landing page styling
   Separate from the per-course styles at /walk-in-skeptical/styles.css so each
   course can own its visual identity without affecting the index. */

:root {
  --ink: #1a2236;
  --ink-muted: rgba(26,34,54,0.64);
  --ink-subtle: rgba(26,34,54,0.4);
  --blue: #6aafd2;
  --blue-deep: #4a8fb8;
  --surface: #fff;
  --border: rgba(26,34,54,0.08);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Geist', 'GeistSans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.55;
  letter-spacing: -0.005em;
}
a { color: inherit; text-decoration: none; }

.gradient-text {
  background: linear-gradient(135deg, #8ec5e2, #f2a0b5, #e8a87c);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* ── Nav ── */
.courses-nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(26,34,54,0.98);
  backdrop-filter: blur(8px);
}
.courses-nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
}
.courses-nav-logo { display: flex; align-items: center; gap: 10px; color: #fff; }
.courses-nav-logo-img { height: 28px; width: auto; }
.courses-nav-logo-sub {
  font-size: 13.5px; font-weight: 500;
  color: rgba(255,255,255,0.55); letter-spacing: -0.01em;
}
.courses-nav-links { display: flex; align-items: center; gap: 32px; }
.courses-nav-links a {
  font-size: 13.5px; font-weight: 500;
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
}
.courses-nav-links a:hover { color: #fff; }
.courses-nav-login {
  background: var(--blue);
  color: #fff !important;
  padding: 8px 20px; border-radius: 8px;
  font-weight: 600;
  transition: background 0.2s, transform 0.15s;
}
.courses-nav-login:hover { background: var(--blue-deep); transform: translateY(-1px); }

/* ── Hero ── */
.courses-hero {
  background: linear-gradient(160deg, #1a2236 0%, #111827 60%, #0a0f1e 100%);
  color: #fff;
  padding: 96px 24px 72px;
  text-align: center;
}
.courses-hero-inner { max-width: 720px; margin: 0 auto; }
.courses-hero-badge {
  display: inline-flex; align-items: center;
  background: rgba(106,175,210,0.18);
  border: 1px solid rgba(106,175,210,0.35);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 13px; font-weight: 600;
  color: #fff; letter-spacing: 0.04em;
  margin-bottom: 24px;
}
.courses-hero-title {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800; line-height: 1.05; letter-spacing: -0.025em;
  margin: 0 0 20px;
}
.courses-hero-subtitle {
  font-size: 17px; color: rgba(255,255,255,0.75);
  max-width: 560px; margin: 0 auto;
}

/* ── Course list ── */
.courses-list { padding: 72px 24px; background: #fafbfc; }
.courses-list-inner { max-width: 1100px; margin: 0 auto; }
.courses-list-title {
  font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-subtle);
  margin: 0 0 24px;
}
.courses-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 20px;
  margin-bottom: 32px;
}
.course-card {
  display: block;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}
.course-card:hover {
  border-color: rgba(106,175,210,0.5);
  box-shadow: 0 8px 24px rgba(26,34,54,0.06);
  transform: translateY(-2px);
}
.course-card-eyebrow {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--blue-deep);
  margin-bottom: 12px;
}
.course-card-title {
  font-size: 24px; font-weight: 800; line-height: 1.15; letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.course-card-desc {
  font-size: 15px; color: var(--ink-muted); margin: 0 0 20px;
}
.course-card-meta {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 14px; font-weight: 600;
}
.course-card-cta {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--blue-deep);
}
.courses-list-note {
  font-size: 14px; color: var(--ink-muted);
  text-align: center; margin: 0;
}
.courses-list-note a { color: var(--blue-deep); text-decoration: underline; }

/* ── Footer ── */
.courses-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 40px 24px;
}
.courses-footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.courses-footer-brand { font-size: 14px; font-weight: 600; color: var(--ink); }
.courses-footer-links {
  display: flex; align-items: center; gap: 24px;
  font-size: 14px; color: var(--ink-muted);
}
.courses-footer-links a { transition: color 0.2s; }
.courses-footer-links a:hover { color: var(--ink); }

/* ── Mobile ── */
@media (max-width: 700px) {
  .courses-nav-links { gap: 16px; }
  .courses-nav-links a:not(.courses-nav-login) { display: none; }
  .courses-hero { padding: 64px 20px 48px; }
  .courses-list { padding: 48px 20px; }
  .courses-grid { grid-template-columns: 1fr; }
  .courses-footer-inner { justify-content: center; text-align: center; }
}