/* ═══════════════════════════════════════════════════════════════
   MODELS PAGE STYLES
   ═══════════════════════════════════════════════════════════════ */

.models-header {
  padding-top: calc(var(--nav-height) + var(--space-2xl));
  padding-bottom: var(--space-xl);
  position: relative;
}

/* ── AI Grid ───────────────────────────────────────────────── */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.ai-card {
  padding: var(--space-lg);
}

.ai-card .card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.ai-card .card-header .model-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.35rem 0.8rem;
  border-radius: 2px;
  background: rgba(56, 189, 248, 0.08);
  color: var(--accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.15);
}

.ai-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.ai-card p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.7;
}

.ai-card .metric-bar {
  margin-top: var(--space-md);
  height: 3px;
  background: var(--surface);
  border-radius: 2px;
  overflow: hidden;
}

.ai-card .metric-bar .fill {
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
  transition: width 1.2s var(--ease-out-expo);
  width: 0;
}

.ai-card .metric-bar .fill.animated {
  width: var(--target-width);
}

.ai-card .metric-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
  display: flex;
  justify-content: space-between;
}

/* ── Pipeline Diagram ──────────────────────────────────────── */
.pipeline-section {
  margin-top: var(--space-2xl);
}

.pipeline-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  margin-top: var(--space-xl);
  position: relative;
}

.pipeline-steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green), var(--accent-amber));
  opacity: 0.25;
}

.pipeline-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.pipeline-step .step-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--accent-cyan);
  background: var(--bg-primary);
  margin: 0 auto 1rem;
  position: relative;
}

.pipeline-step .step-dot::after {
  content: '';
  position: absolute;
  inset: 2px;
  border-radius: 50%;
  background: var(--accent-cyan);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pipeline-step:hover .step-dot::after {
  opacity: 1;
}

.pipeline-step h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.pipeline-step p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
  padding: 0 0.5rem;
}

/* ── Tech Stack ────────────────────────────────────────────── */
.stack-section {
  margin-top: var(--space-2xl);
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.stack-item {
  padding: 1.2rem;
  text-align: center;
  cursor: default;
}

.stack-item .stack-icon {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  margin-bottom: 0.6rem;
  display: block;
}

.stack-item h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.stack-item p {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .pipeline-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
  .pipeline-steps::before { display: none; }
  .stack-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .ai-grid { grid-template-columns: 1fr; }
  .pipeline-steps { grid-template-columns: 1fr; gap: var(--space-lg); }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
}