/* Hallmark · design-system: DESIGN.md · family: Warm Scholar · page: Public Landing */
/* ============================================================
   BOOST LSAT — Landing Page
   "Warm Scholar" Design System — Revamped

   Hero and navigation only.
   ============================================================ */

:root {
  --max-width: 1080px;
  --navbar-height: 56px;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

/* ── Utility ── */
.hidden { display: none !important; }


/* ═══════════════════════════════════
   NAVBAR — minimal, text-only
   ═══════════════════════════════════ */

/* Hamburger icon — hidden on desktop, shown on mobile */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  cursor: pointer;
  padding: var(--space-2);
  border: 0;
  background: transparent;
  color: inherit;
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-1);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-md);
}

.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-fixed);
  padding: 0 var(--space-6);
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background-color var(--transition-normal),
              box-shadow var(--transition-normal);
}

.navbar.scrolled {
  background: var(--surface-0);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border-1);
}

.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-extrabold);
  color: var(--text-1);
  letter-spacing: var(--tracking-tight);
}

.navbar-links {
  display: flex;
  gap: var(--space-6);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-2);
  transition: color var(--transition-fast);
}
.nav-link:hover { color: var(--text-1); }

/* Mobile-only nav links (Sign In, Get Started) — hidden on desktop */
.nav-link--mobile-only {
  display: none;
}
.nav-link--cta {
  font-weight: var(--weight-semibold);
  color: var(--color-cta);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border-1);
  color: var(--text-3);
  transition: border-color var(--transition-fast),
              color var(--transition-fast);
}
.theme-toggle:hover {
  border-color: var(--border-2);
  color: var(--text-1);
}


/* ── Buttons ── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast),
              box-shadow var(--transition-fast),
              background-color var(--transition-fast),
              border-color var(--transition-fast);
  white-space: nowrap;
}

.btn.btn-cta {
  padding: var(--space-2) var(--space-5);
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: 1px solid color-mix(in oklch, var(--color-primary) 85%, var(--text-1));
  box-shadow: 0 8px 24px color-mix(in oklch, var(--color-primary) 20%, transparent);
  justify-content: center;
}
.btn.btn-cta:hover {
  background: var(--color-primary-hover);
  color: var(--color-on-primary);
  transform: translateY(-1px);
}

.btn.btn-lg {
  padding: var(--space-3) var(--space-10);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

.btn.btn-ghost {
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
}
.btn.btn-ghost:hover {
  color: var(--text-1);
  border-color: var(--text-2);
}

/* ═══════════════════════════════════
   HERO
   ═══════════════════════════════════ */

.hero {
  padding: calc(var(--navbar-height) + var(--space-16)) var(--space-6) var(--space-12);
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  gap: var(--space-12);
}

.hero-copy {
  max-width: 720px;
}

.hero-kicker {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: var(--weight-semibold);
  color: var(--color-primary);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-extrabold);
  letter-spacing: var(--tracking-tight);
  line-height: 1.08;
  color: var(--text-1);
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--text-2);
  line-height: var(--leading-relaxed);
  max-width: 600px;
  margin-bottom: var(--space-10);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  /* Show hamburger, hide desktop actions */
  .hamburger {
    display: flex;
  }
  .navbar-actions {
    display: none;
  }

  /* Mobile menu: vertical dropdown below navbar */
  .navbar-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--surface-0);
    border-bottom: 1px solid var(--border-1);
    box-shadow: var(--shadow-md);
    padding: var(--space-4) var(--space-6);
    gap: var(--space-1);
  }

  .navbar-links.is-open {
    display: flex;
  }

  /* Show mobile-only links in hamburger menu */
  .nav-link--mobile-only {
    display: block;
  }
  .nav-link--cta {
    margin-top: var(--space-2);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border-1);
  }

  .hero-title { font-size: var(--text-2xl); }
  .hero-subtitle { font-size: var(--text-base); }
}

@media (max-width: 480px) {
  .hero {
    padding-top: calc(var(--navbar-height) + var(--space-10));
    padding-bottom: var(--space-6);
  }
  .hero-title { font-size: var(--text-xl); }
  .hero-subtitle { margin-bottom: var(--space-6); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}