@import './design-tokens.css';

/* ── Glass Card ── */
.glass-card {
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  transition: all var(--transition-normal);
}
.glass-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

/* ── Button Variants ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1;
}
.btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--cyan);
  color: var(--bg-oled);
  font-weight: 700;
  box-shadow: 0 0 12px var(--cyan-glow);
}
.btn-primary:hover {
  transform: scale(1.02);
  box-shadow: 0 0 24px var(--cyan-glow);
}
.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
}
.btn-glass {
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-primary);
  border: 1px solid var(--border-solid);
}
.btn-glass:hover {
  border-color: var(--border-hover);
  background: var(--bg-hover);
}

/* ── Badge / Pill ── */
.badge {
  display: inline-block;
  background: rgba(0, 242, 255, 0.08);
  color: var(--cyan);
  border: 1px solid rgba(0, 242, 255, 0.15);
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.badge-green {
  background: rgba(0, 255, 136, 0.08);
  color: var(--green);
  border-color: rgba(0, 255, 136, 0.15);
}

/* ── Section Container ── */
.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-16) var(--space-6);
}

/* ── Grid Layouts ── */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

/* ── Responsive Grid ── */
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* ── Text Utilities ── */
.gradient-text {
  background: linear-gradient(135deg, var(--text-primary), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

/* ── Section Divider ── */
.divider {
  border: none;
  height: 1px;
  background: var(--border);
  margin: var(--space-8) 0;
}

/* ── Reading Container ── */
.reading-container {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
}

/* ── Skip to Content (accessibility) ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: var(--z-toast);
  background: var(--cyan);
  color: var(--bg-oled);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 700;
  text-decoration: none;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: var(--space-2);
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .glass-card:hover {
    transform: none;
  }
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Focus Ring ── */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}