/* ==========================================================================
   COMPONENTS.CSS — Buttons, Cards, Badges, Brand Banner & Theme Toggle
   Max lines: < 250 lines
   ========================================================================== */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.btn--primary {
  background: linear-gradient(135deg, #10B981 0%, #059669 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px var(--color-accent-glow);
}

.btn--primary:hover {
  background: linear-gradient(135deg, #34D399 0%, #059669 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--color-accent-glow);
}

.btn--outline {
  background: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-subtle);
}

.btn--ghost {
  background: var(--color-bg-glass);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  background: var(--color-bg-glass-hover);
  border-color: var(--color-border-strong);
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
}

.btn--lg {
  padding: 0.95rem 1.85rem;
  font-size: var(--text-base);
}

.btn__icon {
  width: 16px;
  height: 16px;
  stroke-width: 2;
  transition: transform var(--transition-fast);
}

.btn:hover .btn__icon--arrow {
  transform: translateX(3px);
}

/* --- Badges & Pills --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34D399;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: #10B981;
  box-shadow: 0 0 10px #10B981;
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* --- Cards --- */
.card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-accent);
  box-shadow: 0 12px 36px var(--color-accent-glow);
}

/* --- Tags --- */
.tag {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-accent);
}

.tech-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
}

/* --- Studio Brand Showcase Banner --- */
.studio-brand-banner {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  margin-top: var(--sp-8);
  margin-bottom: var(--sp-8);
  background: #022015;
}

.studio-brand-banner__img {
  width: 100%;
  height: auto;
  max-height: 420px;
  display: block;
  object-fit: cover;
  object-position: center;
}

/* --- Theme Toggle Button --- */
.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
  cursor: pointer;
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--color-accent-subtle);
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: rotate(15deg);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}