/* ============================================
   SHARED COMPONENTS — Cards, chips, buttons, etc.
   ============================================ */

/* Layout */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--sp-5);
  position: relative;
  z-index: 1;
}

.container--narrow {
  max-width: 720px;
}

/* Sections */
.section {
  padding: var(--sp-7) 0;
}

.section-label {
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-3);
  margin-bottom: var(--sp-5);
  text-align: center;
}

.section-heading {
  font-size: var(--fs-h2);
  font-weight: 750;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: var(--sp-4);
}

.section-desc {
  color: var(--color-text-2);
  font-size: var(--fs-body);
  text-align: center;
  max-width: 560px;
  margin: 0 auto var(--sp-6);
}

/* Buttons */
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--r-full);
  font-size: var(--fs-small);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--duration) var(--ease-out);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 85, 212, 0.25);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text-1);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-chip-bg);
  border-color: var(--color-text-3);
  transform: translateY(-1px);
}

.btn-primary:focus-visible,
.btn-secondary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-l);
  padding: var(--sp-5);
  text-decoration: none;
  color: inherit;
  transition: all var(--duration) var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-l);
  opacity: 0;
  background: linear-gradient(135deg, var(--color-glow), transparent);
  transition: opacity var(--duration) var(--ease-out);
}

.card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 30%, var(--color-border));
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.card:hover::before { opacity: 1; }

.card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r-s);
  background: var(--color-chip-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: var(--sp-1);
  position: relative;
  z-index: 1;
}

.card-title {
  font-size: var(--fs-h3);
  font-weight: 650;
  letter-spacing: -0.01em;
  position: relative;
  z-index: 1;
}

.card-desc {
  font-size: var(--fs-small);
  color: var(--color-text-2);
  line-height: 1.5;
  position: relative;
  z-index: 1;
}

.card-arrow {
  color: var(--color-text-3);
  font-size: 1.1rem;
  margin-top: auto;
  align-self: flex-end;
  transition: transform var(--duration) var(--ease-out), color var(--duration) var(--ease-out);
  position: relative;
  z-index: 1;
}

.card:hover .card-arrow {
  transform: translateX(3px);
  color: var(--color-accent);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
}

@media (max-width: 640px) {
  .cards-grid { grid-template-columns: 1fr; }
}

/* Chips */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  justify-content: center;
  margin-bottom: var(--sp-6);
}

.chip {
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-full);
  border: 1px solid var(--color-border);
  background: var(--color-chip-bg);
  color: var(--color-chip-text);
  font-size: var(--fs-xs);
  font-weight: 550;
}

/* Back link */
.back-link {
  display: inline-block;
  margin-top: var(--sp-5);
  color: var(--color-accent);
  text-decoration: none;
  font-size: var(--fs-small);
  font-weight: 600;
  transition: opacity var(--duration) var(--ease-out);
}

.back-link:hover { opacity: 0.8; }

.back-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 2px;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .card:hover { transform: none; }
  .btn-primary:hover, .btn-secondary:hover { transform: none; }
}