/* ═══════════════════════════════════════════════
   TurboFan Intelligence — Core Styles
   Premium Industrial AI Landing Page
═══════════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
  --bg:           #020810;
  --bg-2:         #040e1c;
  --bg-card:      #070f1e;
  --bg-card-2:    #0a1428;
  --border:       rgba(30, 74, 110, 0.4);
  --border-bright: rgba(0, 212, 255, 0.2);
  --cyan:         #00d4ff;
  --cyan-dim:     rgba(0, 212, 255, 0.15);
  --cyan-glow:    rgba(0, 212, 255, 0.06);
  --orange:       #ff6b00;
  --orange-dim:   rgba(255, 107, 0, 0.15);
  --purple:       #7c3aed;
  --purple-dim:   rgba(124, 58, 237, 0.15);
  --text:         #e2e8f0;
  --text-2:       #94a3b8;
  --text-3:       #475569;
  --font-head:    'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
  --radius:       12px;
  --radius-lg:    20px;
  --transition:   0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-w:        1280px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
input, select, button { font-family: inherit; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #1e3a5f; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #2a5a8f; }

/* ── Utility ── */
.gradient-text {
  background: linear-gradient(135deg, var(--cyan) 0%, #60a5fa 50%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-container { max-width: var(--max-w); margin: 0 auto; padding: 0 48px; }
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
}
.section-headline {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 20px;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.7;
}

/* ══════════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
  border-bottom: 1px solid transparent;
}
#navbar.scrolled {
  background: rgba(2, 8, 16, 0.9);
  backdrop-filter: blur(16px);
  border-color: var(--border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 48px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}
/* IQ accent — orange to match the electric bolt in the logo mark */
.logo-accent { color: var(--orange); }

/* Logo fan blades hint-spin on hover */
.nav-logo svg {
  transition: filter 0.3s ease;
}
.nav-logo:hover svg {
  filter: drop-shadow(0 0 6px rgba(0, 212, 255, 0.5));
  animation: logo-fan-spin 0.6s ease-out forwards;
}
@keyframes logo-fan-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(22.5deg); } /* half-blade step for fan snap feel */
}
.nav-links {
  display: flex;
  list-style: none;
  gap: 36px;
  margin: 0;
  flex: 1;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-2);
  transition: color var(--transition);
  font-weight: 500;
}
.nav-links a:hover { color: var(--text); }
.btn-nav {
  display: inline-flex;
  align-items: center;
  padding: 9px 22px;
  background: var(--cyan);
  color: #000;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-nav:hover {
  background: #33deff;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.35);
}

/* ══════════════════════════════════════════════
   HERO
══════════════════════════════════════════════ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
#hero { cursor: crosshair; }
.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 860px;
  padding: 120px 48px 100px;
}
.eyebrow-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.dot-pulse {
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 40px;
}
.hero-sub strong { color: var(--text); font-weight: 600; }
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 64px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--cyan);
  color: #000;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: 10px;
  transition: all var(--transition);
  letter-spacing: -0.01em;
}
.btn-primary:hover {
  background: #33deff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.4);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: var(--text-2);
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all var(--transition);
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-bright);
  background: var(--cyan-dim);
}
/* Hero stats */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 24px 32px;
  background: rgba(7, 15, 30, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 32px;
  gap: 4px;
}
.stat-num {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}
.stat-unit {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--cyan);
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-3);
  text-align: center;
  max-width: 120px;
  line-height: 1.3;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}
/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0.5;
  animation: fade-scroll-hint 2s infinite;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--cyan));
}
.hero-scroll-hint span {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ══════════════════════════════════════════════
   TURBOFAN EXPLORE SECTION
══════════════════════════════════════════════ */
#turbofan-explore {
  position: relative;
  height: 400vh; /* tall scroll distance for pin */
}
.explore-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg);
}
.explore-header {
  position: absolute;
  top: 90px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 20;
}
.explore-stage-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
}
.explore-progress-bar {
  width: 160px;
  height: 2px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 1px;
  overflow: hidden;
}
.explore-progress-fill {
  height: 100%;
  background: var(--cyan);
  width: 0%;
  transition: width 0.1s linear;
  border-radius: 1px;
}
.explore-stage-hint {
  font-size: 11px;
  color: var(--text-3);
  font-family: var(--font-mono);
}
/* Canvas engine viewport */
.engine-viewport {
  position: relative;
  width: 100%;
  height: calc(100vh - 148px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
#engine-canvas {
  display: block;
  /* sized by JS – do not set w/h here */
}

/* ── Network flow canvas ── */
.network-canvas-wrap {
  position: relative;
  width: 100%;
  height: 580px;
  margin-top: 56px;
  overflow: hidden;
}
#network-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

/* Info panels that appear during scroll zoom */
.info-panel {
  position: absolute;
  width: 200px;
  background: rgba(7, 15, 30, 0.95);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  backdrop-filter: blur(12px);
}
.info-panel.visible {
  opacity: 1;
  transform: translateY(0);
}
.info-panel-left  { left: 28px;  top: 50%; transform: translateY(-52px); }
.info-panel-right { right: 28px; top: 50%; transform: translateY(-52px); }
.info-panel-left.visible,
.info-panel-right.visible { opacity: 1; transform: translateY(-52px); }

.panel-dot {
  width: 8px; height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  margin-bottom: 10px;
  box-shadow: 0 0 8px var(--cyan);
}
.panel-dot-purple { background: var(--purple); box-shadow: 0 0 8px var(--purple); }
.panel-title {
  font-family: var(--font-head);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}
.panel-items { display: flex; flex-direction: column; gap: 6px; }
.panel-item {
  font-size: 0.72rem;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 6px;
}
.tag-cyan, .tag-orange, .tag-purple {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 1px 5px;
  border-radius: 3px;
  flex-shrink: 0;
}
.tag-cyan { color: var(--cyan); background: var(--cyan-dim); border: 1px solid rgba(0,212,255,0.2); }
.tag-orange { color: var(--orange); background: var(--orange-dim); border: 1px solid rgba(255,107,0,0.2); }
.tag-purple { color: var(--purple); background: var(--purple-dim); border: 1px solid rgba(124,58,237,0.2); }

/* ══════════════════════════════════════════════
   DATA FLOW SECTION
══════════════════════════════════════════════ */
#data-flow-section {
  padding: 120px 0;
  background: linear-gradient(to bottom, var(--bg), var(--bg-2));
}
#data-flow-section .section-container { margin-bottom: 72px; }
#data-flow-section .section-headline { max-width: 700px; }
.flow-diagram {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 160px;
  transition: all var(--transition);
  position: relative;
  flex-shrink: 0;
  opacity: 0;
  transform: translateY(20px);
}
.flow-node.visible {
  opacity: 1;
  transform: translateY(0);
}
.flow-node:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-2);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}
.flow-node-highlight {
  border-color: rgba(124, 58, 237, 0.4);
  background: rgba(7, 4, 20, 0.9);
  box-shadow: 0 0 40px rgba(124, 58, 237, 0.1);
}
.flow-node-icon {
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: 14px;
  margin-bottom: 14px;
}
.flow-node-highlight .flow-node-icon {
  background: rgba(124, 58, 237, 0.08);
  border-color: rgba(124, 58, 237, 0.2);
}
.flow-node-label {
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.2;
}
.flow-node-sub {
  font-size: 0.68rem;
  color: var(--text-3);
  line-height: 1.4;
  font-family: var(--font-mono);
}
/* Flow arrows */
.flow-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 0 8px;
  flex-shrink: 0;
  min-width: 80px;
}
.arrow-line {
  width: 100%;
  height: 2px;
  background: linear-gradient(to right, var(--border), var(--border-bright), var(--border));
  position: relative;
  overflow: hidden;
}
.arrow-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-3);
  text-align: center;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.arrow-particle {
  position: absolute;
  width: 20px; height: 2px;
  background: linear-gradient(to right, transparent, var(--cyan));
  animation: particle-flow 1.5s linear infinite;
}

/* ══════════════════════════════════════════════
   PROBLEM SECTION
══════════════════════════════════════════════ */
#problem {
  padding: 120px 0;
  background: var(--bg);
}
#problem .section-container { margin-bottom: 64px; }
.problem-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.problem-stat {
  padding: 36px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(24px);
}
.problem-stat.visible {
  opacity: 1;
  transform: translateY(0);
}
.problem-stat:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-2);
}
.problem-number {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.problem-label { font-size: 0.875rem; color: var(--text-2); line-height: 1.5; }
.problem-callout {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
}
.problem-callout > div:first-child {
  padding: 20px 28px;
  background: rgba(255, 107, 0, 0.04);
  border: 1px solid rgba(255, 107, 0, 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 16px;
  opacity: 0;
  transform: translateY(16px);
  transition: all 0.5s ease;
}
.problem-callout.visible > div:first-child { opacity: 1; transform: translateY(0); }
.callout-icon { flex-shrink: 0; }
.problem-callout p {
  font-size: 1rem;
  color: var(--text-2);
  font-style: italic;
  line-height: 1.5;
}
/* Overriding for callout layout */
.problem-callout {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
}
.callout-inner {
  padding: 20px 28px;
  background: rgba(255, 107, 0, 0.04);
  border: 1px solid rgba(255, 107, 0, 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ══════════════════════════════════════════════
   INTEGRATION SECTION
══════════════════════════════════════════════ */
#integration {
  padding: 120px 0;
  background: linear-gradient(to bottom, var(--bg-2), var(--bg));
  position: relative;
  overflow: hidden;
}
#integration::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 800px; height: 400px;
  background: radial-gradient(ellipse, rgba(0, 212, 255, 0.03) 0%, transparent 70%);
  pointer-events: none;
}
#integration .section-container { margin-bottom: 64px; }
.integration-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.integration-card {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
  cursor: default;
}
.integration-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.integration-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-2);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(0, 212, 255, 0.1);
}
.integration-logo { margin-bottom: 16px; }
.int-badge {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.integration-name {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.integration-desc {
  font-size: 0.85rem;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 14px;
}
.integration-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-3);
  letter-spacing: 0.05em;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

/* ══════════════════════════════════════════════
   FEATURES SECTION
══════════════════════════════════════════════ */
#features {
  padding: 120px 0;
  background: var(--bg);
}
#features .section-container { margin-bottom: 64px; }
.features-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
  position: relative;
  overflow: hidden;
}
.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--cyan-dim), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-2);
  transform: translateY(-4px);
}
.feature-card:hover::before { opacity: 1; }
.feature-card-large {
  grid-column: span 2;
}
.feature-icon {
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cyan-glow);
  border: 1px solid rgba(0, 212, 255, 0.1);
  border-radius: 14px;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.3;
}
.feature-card p {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 16px;
}
.feature-spec {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.feature-spec span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid rgba(0, 212, 255, 0.15);
  padding: 3px 9px;
  border-radius: 4px;
}

/* ══════════════════════════════════════════════
   RESULTS SECTION
══════════════════════════════════════════════ */
#results {
  padding: 120px 0;
  background: linear-gradient(to bottom, var(--bg), var(--bg-2));
  position: relative;
  overflow: hidden;
}
#results::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 50%, rgba(0, 212, 255, 0.04) 0%, transparent 70%);
  pointer-events: none;
}
.results-eyebrow { color: var(--cyan); }
.results-headline { color: var(--text); }
#results .section-container { margin-bottom: 64px; }
.metrics-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.metric-card {
  padding: 36px 28px;
  background: rgba(7, 15, 30, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  opacity: 0;
  transform: scale(0.95);
  backdrop-filter: blur(8px);
}
.metric-card.visible {
  opacity: 1;
  transform: scale(1);
}
.metric-card:hover {
  border-color: var(--border-bright);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.05);
  transform: scale(1.02);
}
.metric-value {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
  margin-bottom: 10px;
  letter-spacing: -0.03em;
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.metric-unit {
  font-size: 1.5rem;
  font-weight: 500;
}
.metric-label {
  font-size: 0.9rem;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 4px;
}
.metric-context {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
}

/* ══════════════════════════════════════════════
   DASHBOARD SECTION — Premium Layout
══════════════════════════════════════════════ */
#dashboard {
  padding: 120px 0 140px;
  background: var(--bg-2);
}
#dashboard .section-container { margin-bottom: 64px; }

/* Two-panel layout: browser + phone */
.dashboard-layout {
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: flex-start;
  gap: 40px;
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.dashboard-layout.visible { opacity: 1; transform: translateY(0); }

/* ── Browser Chrome ── */
.browser-chrome {
  flex: 1;
  min-width: 0;
  background: #0b1524;
  border: 1px solid rgba(30, 74, 110, 0.5);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255,255,255,0.04) inset;
}
.browser-titlebar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: #070e1a;
  border-bottom: 1px solid rgba(30, 74, 110, 0.4);
  user-select: none;
}
.browser-dots { display: flex; gap: 6px; flex-shrink: 0; }
.bdot {
  width: 12px; height: 12px;
  border-radius: 50%;
  display: block;
}
.bdot-red    { background: #ff5f56; }
.bdot-yellow { background: #ffbd2e; }
.bdot-green  { background: #27c93f; }
.browser-urlbar {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 6px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
}
.browser-actions { flex-shrink: 0; }
.browser-live-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  color: #22c55e;
  padding: 3px 8px;
  background: rgba(34,197,94,0.12);
  border: 1px solid rgba(34,197,94,0.25);
  border-radius: 4px;
}
.live-dot {
  width: 6px; height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 1.2s infinite;
}

/* ── App layout ── */
.dash-app {
  display: flex;
  height: 560px;
}

/* Icon side nav */
.dash-sidenav {
  width: 52px;
  background: #060d1a;
  border-right: 1px solid rgba(30, 74, 110, 0.35);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 0;
  gap: 8px;
  flex-shrink: 0;
}
.dash-nav-logo { margin-bottom: 16px; }
.dash-nav-items { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.dash-nav-bottom { margin-top: auto; }
.dash-nav-item {
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--text-3);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.dash-nav-item:hover { background: rgba(0,212,255,0.06); color: var(--text); }
.dash-nav-active { background: rgba(0,212,255,0.1); color: var(--cyan); }

/* Main content area */
.dash-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Topbar */
.dash-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  border-bottom: 1px solid rgba(30, 74, 110, 0.35);
  background: rgba(6, 13, 26, 0.6);
  flex-shrink: 0;
}
.dash-topbar-left, .dash-topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.dash-breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
}
.dash-breadcrumb-active { color: var(--text-2); }
.dash-sep { color: var(--text-3); font-size: 0.65rem; }
.dash-alert-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: #f59e0b;
  padding: 3px 8px;
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 5px;
}
.dash-time {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-3);
}

/* KPI cards */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(30, 74, 110, 0.3);
  border-bottom: 1px solid rgba(30, 74, 110, 0.35);
  flex-shrink: 0;
}
.kpi-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: #0a1322;
  position: relative;
  overflow: hidden;
}
.kpi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
}
.kpi-warning::before { background: linear-gradient(90deg, #ff6b00, transparent); }
.kpi-ok::before      { background: linear-gradient(90deg, #00d4ff, transparent); }
.kpi-green::before   { background: linear-gradient(90deg, #22c55e, transparent); }
.kpi-purple::before  { background: linear-gradient(90deg, #7c3aed, transparent); }
.kpi-icon {
  width: 30px; height: 30px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: rgba(255,255,255,0.04);
}
.kpi-data { flex: 1; min-width: 0; }
.kpi-value {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.1;
}
.kpi-unit { font-size: 0.7rem; font-weight: 500; color: var(--text-3); margin-left: 1px; }
.kpi-label { font-family: var(--font-mono); font-size: 0.6rem; color: var(--text-3); }
.kpi-trend {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-3);
  white-space: nowrap;
  flex-shrink: 0;
}
.kpi-trend-up   { color: #ef4444; }
.kpi-trend-warn { color: #f59e0b; }
.kpi-trend-green { color: #22c55e; }

/* Main panels row */
.dash-panels-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 0;
  flex: 1;
  overflow: hidden;
}
.dash-panel-left {
  border-right: 1px solid rgba(30, 74, 110, 0.35);
  overflow-y: auto;
  padding: 14px 0;
}
.dash-panel-right {
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow: hidden;
}
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px 10px;
}
.panel-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-3);
}
.panel-badge {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: 3px;
}
.panel-badge-live { color: #22c55e; background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.2); }

/* Fleet list */
.fleet-list { display: flex; flex-direction: column; }
.fleet-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  cursor: pointer;
  transition: background var(--transition);
  border-left: 2px solid transparent;
}
.fleet-row:hover { background: rgba(255,255,255,0.02); }
.fleet-row-active { background: rgba(255,107,0,0.05); border-left-color: #ff6b00; }
.fleet-row-critical { background: rgba(239,68,68,0.04); border-left-color: #ef4444; }
.fleet-indicator { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.ind-ok       { background: #22c55e; }
.ind-warning  { background: #f59e0b; animation: pulse-dot 1.5s infinite; }
.ind-critical { background: #ef4444; animation: pulse-dot 1s infinite; }
.fleet-info { flex: 1; min-width: 0; }
.fleet-name { font-size: 0.72rem; font-weight: 600; color: var(--text); }
.fleet-type { font-weight: 400; color: var(--text-3); font-size: 0.65rem; }
.fleet-status { font-family: var(--font-mono); font-size: 0.58rem; color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fleet-rul { text-align: right; flex-shrink: 0; }
.rul-num { font-family: var(--font-head); font-size: 0.8rem; font-weight: 700; color: var(--text); line-height: 1; }
.rul-unit { font-family: var(--font-mono); font-size: 0.55rem; color: var(--text-3); }
.fleet-sparkline { width: 48px; flex-shrink: 0; }
.fleet-sparkline svg { width: 100%; height: 20px; display: block; }

/* Priority alert card */
.priority-alert {
  display: flex;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(30, 74, 110, 0.35);
  background: rgba(255, 107, 0, 0.04);
  flex-shrink: 0;
}
.alert-pill {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  padding: 3px 7px;
  border-radius: 4px;
  height: fit-content;
  flex-shrink: 0;
  margin-top: 1px;
}
.alert-pill-high {
  color: #ff6b00;
  background: rgba(255,107,0,0.12);
  border: 1px solid rgba(255,107,0,0.3);
}
.alert-body { flex: 1; }
.alert-title2 { font-size: 0.78rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.alert-sub { font-size: 0.7rem; color: var(--text-2); line-height: 1.45; margin-bottom: 8px; }
.alert-meta-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.alert-meta {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-3);
}
.alert-meta-action { color: var(--cyan); cursor: pointer; margin-left: auto; }
.alert-meta-action:hover { text-decoration: underline; }

/* Trend chart panel */
.trend-panel {
  padding: 12px 18px;
  border-bottom: 1px solid rgba(30, 74, 110, 0.35);
  flex-shrink: 0;
}
.trend-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.trend-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-3);
  flex: 1;
}
.trend-value { font-family: var(--font-head); font-size: 0.9rem; font-weight: 700; color: var(--text); }
.trend-value-hot { color: #ff6b00; }
.trend-delta { font-family: var(--font-mono); font-size: 0.65rem; color: #ff6b00; }
.trend-chart-wrap { height: 56px; }
.trend-svg { width: 100%; height: 100%; display: block; }

/* RUL gauge panel */
.rul-panel {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 18px;
  flex: 1;
  overflow: hidden;
}
.rul-gauge-wrap { width: 120px; flex-shrink: 0; }
.rul-gauge-svg { width: 100%; display: block; }
.rul-breakdown { flex: 1; display: flex; flex-direction: column; gap: 8px; }
.rul-row { display: flex; justify-content: space-between; align-items: center; }
.rul-key { font-family: var(--font-mono); font-size: 0.62rem; color: var(--text-3); }
.rul-val { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text); font-weight: 600; }

/* ── iPhone 15 Pro Mockup ── */
.iphone-wrap {
  flex-shrink: 0;
  width: 295px;
}
.iphone-frame {
  width: 295px;
  background: linear-gradient(145deg, #1c1c1e 0%, #2c2c2e 40%, #1c1c1e 100%);
  border-radius: 50px;
  padding: 14px;
  box-shadow:
    0 0 0 1.5px #3a3a3c,
    0 0 0 3px #1c1c1e,
    0 40px 80px rgba(0, 0, 0, 0.8),
    inset 0 0 0 1px rgba(255,255,255,0.08);
  position: relative;
}
/* Volume buttons */
.iphone-vol-up, .iphone-vol-dn, .iphone-power {
  position: absolute;
  background: linear-gradient(180deg, #2c2c2e, #1c1c1e);
  border-radius: 3px;
}
.iphone-vol-up {
  left: -4px; top: 90px;
  width: 4px; height: 32px;
  box-shadow: -1px 0 0 rgba(255,255,255,0.06);
}
.iphone-vol-dn {
  left: -4px; top: 134px;
  width: 4px; height: 32px;
  box-shadow: -1px 0 0 rgba(255,255,255,0.06);
}
.iphone-power {
  right: -4px; top: 112px;
  width: 4px; height: 52px;
  box-shadow: 1px 0 0 rgba(255,255,255,0.06);
}
/* Screen */
.iphone-screen {
  background: #020810;
  border-radius: 40px;
  overflow: hidden;
  position: relative;
  min-height: 580px;
  display: flex;
  flex-direction: column;
}
/* Dynamic Island */
.dynamic-island {
  width: 100px;
  height: 32px;
  background: #000;
  border-radius: 20px;
  margin: 10px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  position: relative;
  z-index: 10;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.04);
}
.di-dot {
  width: 10px; height: 10px;
  background: radial-gradient(circle, #2a2a2a 40%, #111 100%);
  border-radius: 50%;
}
.di-pill {
  width: 50px; height: 14px;
  background: #111;
  border-radius: 8px;
}
/* Status bar */
.iphone-statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 24px 8px;
  flex-shrink: 0;
}
.sb-time {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  color: white;
}
.sb-icons { display: flex; align-items: center; gap: 5px; }

/* App content in phone */
.iphone-content {
  flex: 1;
  padding: 8px 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
}
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2px;
}
.app-logo {
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
}
.app-alert-dot {
  width: 8px; height: 8px;
  background: #ef4444;
  border-radius: 50%;
  box-shadow: 0 0 8px #ef4444;
  animation: pulse-dot 1s infinite;
}

/* Notification cards */
.notif-card {
  border-radius: 16px;
  padding: 12px 14px;
  backdrop-filter: blur(16px);
  flex-shrink: 0;
}
.notif-critical {
  background: rgba(239, 68, 68, 0.10);
  border: 1px solid rgba(239, 68, 68, 0.25);
  box-shadow: 0 0 24px rgba(239, 68, 68, 0.12), inset 0 1px 0 rgba(255,255,255,0.05);
}
.notif-warning {
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.2);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}
.notif-top-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}
.notif-app-icon {
  width: 22px; height: 22px;
  border-radius: 6px;
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.notif-app-name {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--text-3);
  flex: 1;
}
.notif-time {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-3);
}
.notif-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.notif-body {
  font-size: 0.7rem;
  color: var(--text-2);
  line-height: 1.4;
}
.notif-actions {
  display: flex;
  gap: 6px;
  margin-top: 10px;
}
.notif-btn {
  flex: 1;
  padding: 7px 10px;
  border-radius: 10px;
  border: none;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition);
}
.notif-btn:hover { opacity: 0.85; }
.notif-btn-primary { background: #ef4444; color: white; }
.notif-btn-ghost {
  background: rgba(255,255,255,0.06);
  color: var(--text-2);
  border: 1px solid rgba(255,255,255,0.08);
}

/* Phone RUL card */
.phone-rul-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  padding: 12px 14px;
  flex-shrink: 0;
}
.phone-rul-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-3);
  margin-bottom: 8px;
  text-align: center;
}
.phone-rul-gauge { display: flex; justify-content: center; }
.phone-rul-svg { width: 140px; height: 85px; }
.phone-rul-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-top: 6px;
}
.phone-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px;
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
}
.ps-val {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
}
.ps-lbl {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-3);
}
.ps-warn { color: #f59e0b; }
.ps-ok   { color: #22c55e; }

/* iPhone home bar */
.iphone-home-bar {
  width: 100px;
  height: 4px;
  background: rgba(255,255,255,0.25);
  border-radius: 2px;
  margin: 4px auto 0;
  flex-shrink: 0;
}

/* Legacy compat (keep status-dot for other uses) */
.status-dot { width: 6px; height: 6px; border-radius: 50%; }
.status-warning { background: #f59e0b; animation: pulse-dot 1.5s infinite; }

/* ══════════════════════════════════════════════
   SENSOR HUD — 3D engine overlay labels
══════════════════════════════════════════════ */
#sensor-hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.6s ease;
  z-index: 4;
}

/* ── Sensor tag card ── */
.s-tag {
  position: absolute;
  min-width: 88px;
  padding: 5px 9px 5px 11px;
  border-radius: 6px;
  border: 1px solid;
  background: rgba(2, 8, 16, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-family: var(--font-mono);
  line-height: 1;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.55);
  will-change: transform;
}

/* Severity-keyed left-border stripe + tint */
.s-tag--normal   {
  border-color: rgba(0, 212, 255, 0.28);
  border-left:  2px solid #00d4ff;
}
.s-tag--warning  {
  border-color: rgba(245, 158, 11, 0.35);
  border-left:  2px solid #f59e0b;
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.10), 0 4px 24px rgba(0,0,0,0.55);
}
.s-tag--critical {
  border-color: rgba(239, 68, 68, 0.45);
  border-left:  2px solid #ef4444;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.18), 0 4px 24px rgba(0,0,0,0.55);
  animation: s-crit-glow 1.35s ease-in-out infinite;
}
@keyframes s-crit-glow {
  0%,100% { box-shadow: 0 0 14px rgba(239,68,68,0.16), 0 4px 24px rgba(0,0,0,0.55); }
  50%      { box-shadow: 0 0 30px rgba(239,68,68,0.36), 0 4px 24px rgba(0,0,0,0.55); }
}

/* Connector line — drawn with ::before toward the engine sensor dot */
.s-tag::before {
  content: '';
  position: absolute;
  top: 50%;
  width: 40px;
  height: 1px;
  transform: translateY(-50%);
  pointer-events: none;
}
.s-tag[data-side="right"]::before {
  right: 100%;
  background: linear-gradient(to left, rgba(0,212,255,0.35), transparent);
}
.s-tag--warning[data-side="right"]::before  {
  background: linear-gradient(to left, rgba(245,158,11,0.40), transparent);
}
.s-tag--critical[data-side="right"]::before {
  background: linear-gradient(to left, rgba(239,68,68,0.45), transparent);
}
.s-tag[data-side="left"]::before {
  left: 100%;
  background: linear-gradient(to right, rgba(0,212,255,0.35), transparent);
}
.s-tag--warning[data-side="left"]::before  {
  background: linear-gradient(to right, rgba(245,158,11,0.40), transparent);
}
.s-tag--critical[data-side="left"]::before {
  background: linear-gradient(to right, rgba(239,68,68,0.45), transparent);
}

/* Header row: sensor ID + blink icon */
.s-tag-head {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 3px;
}
.s-tag-name {
  font-size: 8px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: rgba(148, 163, 184, 0.75);
  white-space: nowrap;
}

/* Alarm blink chevron */
.s-tag-blink {
  display: inline-block;
  width:  6px;
  height: 6px;
  flex-shrink: 0;
  clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
  animation: s-blink 1s step-start infinite;
}
.s-tag--warning  .s-tag-blink { background: #f59e0b; }
.s-tag--critical .s-tag-blink { background: #ef4444; }
@keyframes s-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* Value row */
.s-tag-val {
  display: flex;
  align-items: baseline;
  gap: 1px;
  white-space: nowrap;
}
.s-tag-num {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.s-tag--normal   .s-tag-num { color: #00d4ff; }
.s-tag--warning  .s-tag-num { color: #f59e0b; }
.s-tag--critical .s-tag-num { color: #ef4444; }

.s-tag-unit {
  font-size: 8.5px;
  font-weight: 400;
  color: rgba(148, 163, 184, 0.55);
}

/* Alarm sub-line */
.s-tag-alarm-line {
  margin-top: 4px;
  padding-top: 3px;
  border-top: 1px solid rgba(255, 255, 255, 0.055);
  font-size: 7.5px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.s-tag--warning  .s-tag-alarm-line { color: #f59e0b; }
.s-tag--critical .s-tag-alarm-line { color: #ef4444; }

/* ══════════════════════════════════════════════
   CTA SECTION
══════════════════════════════════════════════ */
#cta {
  padding: 140px 0;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.cta-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(0, 212, 255, 0.07) 0%, transparent 70%);
  pointer-events: none;
}
.cta-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 48px;
  text-align: center;
  position: relative;
  z-index: 2;
}
.cta-eyebrow { justify-content: center; display: flex; margin-bottom: 16px; }
.cta-headline {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.cta-sub {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 48px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
/* Form */
.cta-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  text-align: left;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-3);
  text-transform: uppercase;
}
.form-group input,
.form-group select {
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
  appearance: none;
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08);
}
.form-group input::placeholder { color: var(--text-3); }
.form-group select option { background: #0a1428; color: var(--text); }
.btn-cta-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 15px;
  background: var(--cyan);
  color: #000;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 20px;
  letter-spacing: -0.01em;
}
.btn-cta-submit:hover {
  background: #33deff;
  transform: translateY(-2px);
  box-shadow: 0 10px 40px rgba(0, 212, 255, 0.4);
}
.form-note {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-3);
  margin-top: 12px;
  font-family: var(--font-mono);
}

/* ══════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════ */
#footer {
  padding: 64px 0 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  gap: 80px;
  align-items: flex-start;
  margin-bottom: 48px;
}
.footer-brand { flex: 1; }
.footer-logo {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.footer-tagline { font-size: 0.85rem; color: var(--text-3); line-height: 1.6; max-width: 240px; }
.footer-links { display: flex; gap: 64px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 4px;
}
.footer-col a {
  font-size: 0.875rem;
  color: var(--text-2);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 48px;
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
}

/* ══════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .integration-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card-large { grid-column: span 2; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-diagram { gap: 8px; }
  .flow-arrow { min-width: 48px; }
  .flow-node { width: 130px; padding: 20px 16px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-inner { padding: 0 24px; }
  .hero-content { padding: 100px 24px 80px; }
  .section-container { padding: 0 24px; }
  .problem-grid,
  .integration-grid,
  .features-grid,
  .metrics-grid { padding: 0 24px; grid-template-columns: 1fr; }
  .feature-card-large { grid-column: span 1; }
  .flow-diagram { flex-direction: column; padding: 0 24px; }
  .flow-arrow { transform: rotate(90deg); }
  .hero-stats { flex-direction: column; }
  .stat-divider { width: 40px; height: 1px; }
  .dashboard-mockup { margin: 0 24px; padding: 0; }
  .dash-charts-row { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; padding: 0 24px; gap: 32px; }
  .footer-links { flex-wrap: wrap; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; padding: 20px 24px; }
  .info-panel-left, .info-panel-right { display: none; }
}

/* ══════════════════════════════════════════════
   DASHBOARD INTERACTIVE STATES
══════════════════════════════════════════════ */

/* Fleet row — selected by click */
.fleet-row {
  transition: background var(--transition), border-left-color var(--transition), transform 0.12s ease;
}
.fleet-row-selected {
  background: rgba(0, 212, 255, 0.07) !important;
  border-left-color: var(--cyan) !important;
}
.fleet-row-selected .fleet-name { color: var(--cyan); }
.fleet-row:active { transform: scaleX(0.99); }

/* KPI card — lift on hover, press on click */
.kpi-card {
  cursor: pointer;
  transition: background var(--transition), transform 0.15s ease, box-shadow 0.15s ease;
}
.kpi-card:hover {
  background: #0d1930;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
}

/* Sidebar nav — smooth transitions */
.dash-nav-item {
  transition: background 0.15s ease, color 0.15s ease, transform 0.1s ease;
}
.dash-nav-item:active { transform: scale(0.94); }

/* Alert action button */
.alert-meta-action {
  font-weight: 600;
  transition: color 0.2s ease;
  padding: 2px 6px;
  border-radius: 4px;
}
.alert-meta-action:hover { background: rgba(0, 212, 255, 0.08); }

/* Notification buttons */
.notif-btn {
  transition: opacity 0.15s ease, transform 0.1s ease;
}
.notif-btn:active { transform: scale(0.96); }

/* Alert badge pulse animation */
@keyframes alert-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 0, 0.6); }
  50%       { box-shadow: 0 0 0 6px rgba(255, 107, 0, 0); }
}
.dash-alert-badge {
  transition: color 0.2s ease;
  border-radius: 6px;
}

/* RUL arc transition (set via JS) */
.rul-gauge-svg path[stroke-dasharray] {
  transition: stroke-dashoffset 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dash content fade transition */
.dash-content {
  transition: opacity 0.2s ease;
}