/* Theme variables are defined in theme.css — the single source of truth */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 138, 91, 0.2), transparent 45%),
    radial-gradient(circle at 80% 10%, rgba(45, 212, 191, 0.15), transparent 40%),
    linear-gradient(160deg, var(--bg), var(--bg-2));
}

.global-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--card);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.global-nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.85rem clamp(1rem, 3vw, 3rem);
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  align-items: center;
}

.global-nav__home {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  font-size: 1rem;
  min-height: var(--touch-min, 2.75rem);
  display: inline-flex;
  align-items: center;
}

.global-nav__home:focus-visible {
  outline: 2px solid var(--focus-ring, rgba(255, 138, 91, 0.6));
  outline-offset: 2px;
}

.global-nav__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-min, 2.75rem);
  height: var(--touch-min, 2.75rem);
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card-inner);
  color: var(--text);
  text-decoration: none;
}

.global-nav__icon svg {
  width: 18px;
  height: 18px;
}

.global-nav__icon:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.global-nav__icon:focus-visible {
  outline: 2px solid var(--focus-ring, rgba(255, 138, 91, 0.6));
  outline-offset: 2px;
}

.global-nav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  align-items: center;
}

.global-nav__label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.65rem;
  color: var(--muted);
}

.global-nav__links a {
  color: var(--text);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: clamp(0.8rem, 2vw, 0.85rem);
  min-height: var(--touch-min, 2.75rem);
  display: inline-flex;
  align-items: center;
}

.global-nav__links a:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.global-nav__links a:focus-visible {
  outline: 2px solid var(--focus-ring, rgba(255, 138, 91, 0.6));
  outline-offset: 2px;
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3.5rem clamp(1rem, 3vw, 3rem) 4rem;
}

.hero {
  text-align: left;
  margin-bottom: 3rem;
}

.hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: clamp(0.65rem, 1.5vw, 0.75rem);
  color: var(--muted);
  margin: 0 0 1rem;
}

.hero h1 {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(1.8rem, 5vw, 4rem);
  margin: 0 0 1rem;
}

.lead {
  max-width: 640px;
  font-size: clamp(0.95rem, 2.5vw, 1.1rem);
  color: var(--muted);
  margin: 0;
}

.theme-switcher {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.theme-switcher select {
  background: var(--card-inner);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  padding: 0.5rem 0.9rem;
  font-family: inherit;
  min-height: var(--touch-min, 2.75rem);
}

.theme-switcher select:focus-visible {
  outline: 2px solid var(--focus-ring, rgba(255, 138, 91, 0.6));
  outline-offset: 2px;
}

/* ── Portal Quick Links ───────────────────────────────────────────────── */
.portal-quick-links {
  text-align: center;
  padding: 0 var(--space-md) var(--space-md);
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.quick-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.25rem;
  min-height: var(--touch-min, 2.75rem);
  background: var(--bg-secondary);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.quick-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.quick-link:active {
  transform: translateY(0);
  opacity: 0.8;
}

.quick-link:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.quick-link__icon {
  font-size: 1.1rem;
  line-height: 1;
}

/* Primary CTA — Dashboard */
.quick-link--primary {
  color: var(--primary);
  border-color: var(--accent-soft);
  background: var(--primary-soft);
}

.quick-link--primary:hover {
  border-color: var(--primary);
  background: var(--accent-medium);
}

/* Secondary CTA — Learning Paths */
.quick-link--secondary {
  color: var(--status-success);
  border-color: var(--status-success-soft);
}

.quick-link--secondary:hover {
  border-color: var(--status-success);
  background: var(--status-success-soft);
}

/* Muted CTA — Settings */
.quick-link--muted {
  color: var(--text-accent);
  font-weight: 500;
}

.quick-link--muted:hover {
  border-color: var(--text-accent);
  background: var(--bg-hover);
}

.tracks {
  display: grid;
  gap: 2rem;
}

.track {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.track-header h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.25rem, 3vw, 1.6rem);
}

.track-header p {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: clamp(0.85rem, 2vw, 1rem);
}

.stack-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.stack-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
  color: var(--muted);
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.stack-tag {
  background: var(--chip-bg);
  border: 1px solid var(--chip-border);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.8rem;
  color: var(--chip-text);
}

/* 3 cols on wide screens via auto-fit; collapses naturally */
.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, 1fr);
}

.card {
  text-decoration: none;
  color: var(--text);
  border: 1px solid transparent;
  border-radius: 1rem;
  padding: 1.25rem;
  background: var(--card-inner);
  display: grid;
  gap: 0.5rem;
  min-height: var(--touch-min, 2.75rem);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.35);
}

.card:active {
  transform: translateY(0);
}

.card:focus-visible {
  outline: 2px solid var(--focus-ring, rgba(255, 138, 91, 0.6));
  outline-offset: 2px;
}

.card-title {
  font-weight: 600;
  font-size: clamp(0.9rem, 2vw, 1.05rem);
}

.card-desc {
  color: var(--muted);
  font-size: clamp(0.85rem, 2vw, 0.95rem);
}

.footer {
  margin-top: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ── Breakpoint: tablet (768px) — 2-col cards ────────────────────────── */
@media (max-width: 768px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .track {
    padding: 1.5rem;
    border-radius: 1rem;
  }

  .track-header h2 {
    font-size: 1.3rem;
  }
}

/* ── Breakpoint: large mobile (640px) ─────────────────────────────────── */
@media (max-width: 640px) {
  .page {
    padding: 2rem clamp(0.75rem, 3vw, 1.5rem) 3rem;
  }

  .track {
    padding: 1.25rem;
  }

  .hero {
    margin-bottom: 2rem;
  }

  .lead {
    max-width: 100%;
  }
}

/* ── Breakpoint: small mobile (480px) — 1-col cards ──────────────────── */
@media (max-width: 480px) {
  .cards {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }

  .page {
    padding: 1.5rem 0.75rem 2.5rem;
  }

  .track {
    padding: 1rem;
    border-radius: 0.75rem;
  }

  .global-nav__inner {
    padding: 0.65rem 0.75rem;
    gap: 0.4rem 0.75rem;
  }

  .stack-meta {
    gap: 0.5rem;
  }
}