/* ==========================================================================
   AnomalyIQ - Modern Anomaly Detection Web Application Stylesheet
   ========================================================================== */

:root {
  --bg-primary: #0a0f1d;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2234;
  --bg-card: rgba(26, 34, 52, 0.7);
  --bg-card-hover: rgba(33, 44, 68, 0.9);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(6, 182, 212, 0.5);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  
  --primary: #06b6d4;
  --primary-glow: rgba(6, 182, 212, 0.25);
  --secondary: #6366f1;
  --accent-purple: #a855f7;
  
  --anomaly-red: #f43f5e;
  --anomaly-glow: rgba(244, 63, 94, 0.35);
  --inlier-green: #10b981;
  --warning-amber: #f59e0b;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Menlo, Monaco, Consolas, monospace;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px var(--primary-glow);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  position: relative;
}

/* Background Ambient Glow */
.bg-glow-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}
.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  top: -150px;
  left: 10%;
}
.orb-2 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
  top: 40%;
  right: -100px;
}
.orb-3 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
  bottom: 10%;
  left: -150px;
}

/* Global Container */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header & Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 15, 29, 0.75);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.5px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px var(--primary-glow);
}

.brand-icon svg {
  width: 22px;
  height: 22px;
  color: white;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #0284c7);
  color: #031326;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.5);
  transform: translateY(-1px);
  filter: brightness(1.08);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
  background: rgba(244, 63, 94, 0.15);
  color: #ff6482;
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
  background: rgba(244, 63, 94, 0.25);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.85rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 90px 0 70px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: var(--radius-full);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--anomaly-red);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--anomaly-red);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.7; }
}

.hero-title {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  max-width: 950px;
  margin: 0 auto 24px;
}

.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 40px;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 980px;
  margin: 0 auto;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.stat-value {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 4px;
}

.stat-value.primary { color: var(--primary); }
.stat-value.secondary { color: #818cf8; }
.stat-value.accent { color: #f43f5e; }
.stat-value.success { color: #10b981; }

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Section Header */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 55px;
}

.section-tag {
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.8px;
  margin-bottom: 16px;
  line-height: 1.25;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(12px);
  transition: all var(--transition-normal);
}

.glass-card:hover {
  border-color: rgba(6, 182, 212, 0.3);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

/* Anomaly Types Cards */
.types-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.type-card {
  position: relative;
  display: flex;
  flex-direction: column;
}

.type-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.type-badge-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.type-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.type-visual-mini {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  height: 110px;
  margin: 16px 0 20px;
  border: 1px dashed var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.type-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.55;
  margin-bottom: 16px;
  flex-grow: 1;
}

.type-examples {
  background: rgba(15, 23, 42, 0.6);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 0.85rem;
  border-left: 3px solid var(--primary);
}

.type-examples strong {
  color: var(--primary);
  display: block;
  margin-bottom: 4px;
}

/* Algorithms Section & Filters */
.algo-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.tab-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
}

.tab-btn.active {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(99, 102, 241, 0.15));
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
}

.algo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.algo-card {
  display: flex;
  flex-direction: column;
}

.algo-pill {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.algo-pill.stat { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.algo-pill.ml { background: rgba(168, 85, 247, 0.15); color: #c084fc; }
.algo-pill.dl { background: rgba(244, 63, 94, 0.15); color: #fb7185; }

.algo-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.algo-math {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: rgba(0, 0, 0, 0.35);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: #38bdf8;
  margin-bottom: 14px;
  border: 1px solid rgba(56, 189, 248, 0.15);
}

.algo-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  flex-grow: 1;
}

.algo-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.82rem;
}

.algo-meta-item span {
  display: block;
  color: var(--text-subtle);
  margin-bottom: 2px;
}

.algo-meta-item strong {
  color: var(--text-main);
  font-weight: 600;
}

/* Simulator Section */
.simulator-container {
  background: #0d1322;
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 15px 40px -10px rgba(0, 0, 0, 0.7);
}

.sim-toolbar {
  background: #131c31;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 16px;
}

.sim-modes {
  display: flex;
  gap: 8px;
}

.sim-mode-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sim-mode-btn.active {
  background: var(--primary);
  color: #031326;
  border-color: var(--primary);
}

.sim-controls {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.control-group label {
  white-space: nowrap;
  font-weight: 500;
}

.control-group input[type="range"] {
  width: 110px;
  accent-color: var(--primary);
  cursor: pointer;
}

.control-val {
  font-family: var(--font-mono);
  color: var(--primary);
  font-weight: 700;
  min-width: 32px;
}

.sim-viewport {
  position: relative;
  height: 480px;
  background: radial-gradient(circle at center, #111a2f 0%, #090e1a 100%);
  overflow: hidden;
}

canvas#simCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.sim-hud {
  position: absolute;
  top: 18px;
  right: 18px;
  background: rgba(13, 19, 34, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.82rem;
  min-width: 180px;
  pointer-events: none;
}

.hud-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.hud-label {
  color: var(--text-muted);
}

.hud-value {
  font-family: var(--font-mono);
  font-weight: 700;
}

.hud-value.outliers { color: var(--anomaly-red); }
.hud-value.inliers { color: var(--inlier-green); }
.hud-value.score { color: var(--primary); }

.sim-hint {
  position: absolute;
  bottom: 18px;
  left: 18px;
  background: rgba(13, 19, 34, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}

.sim-hint span.key {
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.sim-legend {
  background: #111827;
  padding: 12px 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

.legend-items {
  display: flex;
  gap: 20px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.legend-dot.normal { background: #38bdf8; box-shadow: 0 0 6px #38bdf8; }
.legend-dot.anomaly { background: var(--anomaly-red); box-shadow: 0 0 8px var(--anomaly-red); }
.legend-dot.boundary { background: rgba(255, 255, 255, 0.3); border: 1px dashed #fff; }

/* Industry Applications */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.usecase-card {
  padding: 28px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.usecase-card:hover {
  border-color: rgba(99, 102, 241, 0.4);
  transform: translateY(-4px);
}

.usecase-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(99, 102, 241, 0.12);
  color: #818cf8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.usecase-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.usecase-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 18px;
}

.usecase-signals {
  list-style: none;
  font-size: 0.83rem;
  color: var(--text-subtle);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.usecase-signals li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.usecase-signals li::before {
  content: '▸';
  color: var(--primary);
  font-size: 0.9rem;
}

/* Architecture Pipeline */
.pipeline-track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
  margin-top: 30px;
}

.pipeline-step {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 18px;
  position: relative;
  text-align: center;
}

.step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #031326;
  font-weight: 800;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}

.step-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Code Playground */
.code-box {
  background: #090e17;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.code-header {
  background: #111726;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.code-nav {
  display: flex;
  gap: 8px;
}

.code-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}

.code-tab-btn.active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
}

.copy-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-main);
}

.code-content {
  padding: 24px;
  margin: 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  color: #e2e8f0;
}

.code-pane {
  display: none;
}

.code-pane.active {
  display: block;
}

/* Metrics Comparison & Pitfalls */
.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.metric-item {
  margin-bottom: 20px;
}

.metric-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.metric-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.metric-status {
  font-size: 0.8rem;
  font-weight: 700;
}

.metric-status.bad { color: #f43f5e; }
.metric-status.good { color: #10b981; }

.metric-bar-bg {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 6px;
}

.metric-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
}

.metric-bar-fill.warning { background: linear-gradient(90deg, #f59e0b, #f43f5e); width: 99%; }
.metric-bar-fill.success { background: linear-gradient(90deg, #06b6d4, #10b981); width: 88%; }

.metric-note {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* FAQ Accordion */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: transparent;
  border: none;
  text-align: left;
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-icon {
  font-size: 1.2rem;
  color: var(--primary);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

/* Footer */
.footer {
  background: #070a14;
  border-top: 1px solid var(--border-subtle);
  padding: 70px 0 35px;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 14px;
  max-width: 320px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
  color: var(--text-main);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
  color: var(--text-subtle);
  flex-wrap: wrap;
  gap: 14px;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .types-grid, .algo-grid, .usecases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pipeline-track {
    grid-template-columns: repeat(3, 1fr);
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta .btn {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #0d1424;
    padding: 24px;
    border-bottom: 1px solid var(--border-subtle);
    gap: 18px;
  }
  .types-grid, .algo-grid, .usecases-grid, .metrics-grid {
    grid-template-columns: 1fr;
  }
  .pipeline-track {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .sim-viewport {
    height: 380px;
  }
  .sim-hud {
    position: relative;
    top: auto;
    right: auto;
    margin: 12px;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}