/* ═══════════════════════════════════════════════════════════
   ENVIRONMENTAL SENTINEL — Product-First Design System
   Dark theme · Chic SVG icons · Data-focused
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-primary: #060910;
  --bg-secondary: #0a0e16;
  --bg-tertiary: #0f1420;
  --bg-card: rgba(255, 255, 255, 0.025);
  --bg-card-hover: rgba(255, 255, 255, 0.055);

  --gold-300: #e8c95a;
  --gold-400: #d4a843;
  --gold-500: #c8a44e;
  --gold-600: #a8842e;
  --gold-gradient: linear-gradient(135deg, #c8a44e 0%, #e8c95a 50%, #a8842e 100%);
  --gold-glow: 0 0 40px rgba(200, 164, 78, 0.18);

  --teal: #2dd4bf;
  --teal-glow: rgba(45, 212, 191, 0.12);
  --teal-gradient: linear-gradient(135deg, #2dd4bf 0%, #14b8a6 100%);

  --text-primary: #f5f5f5;
  --text-secondary: rgba(255, 255, 255, 0.62);
  --text-tertiary: rgba(255, 255, 255, 0.35);
  --text-gold: #e8c95a;

  --border-subtle: rgba(255, 255, 255, 0.05);
  --border-medium: rgba(255, 255, 255, 0.09);
  --border-gold: rgba(200, 164, 78, 0.25);
  --border-teal: rgba(45, 212, 191, 0.2);

  --critical: #ef4444;
  --high: #f97316;
  --medium: #eab308;
  --low: #22c55e;
  --info: #3b82f6;

  --section-padding: 120px 0;
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 22px;
  --radius-2xl: 28px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --blur: blur(20px);
}

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

html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(45,212,191,0.04), transparent),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(200,164,78,0.03), transparent);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; outline: none; }

.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-padding); position: relative; }
.section-divider { width: 100%; height: 1px; background: var(--border-subtle); border: none; }

/* ── Icons (Lucide) ── */
.icon {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  flex-shrink: 0;
}

.icon-sm { width: 16px; height: 16px; }
.icon-md { width: 20px; height: 20px; }
.icon-lg { width: 24px; height: 24px; }
.icon-xl { width: 32px; height: 32px; }

.icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(200, 164, 78, 0.08);
  border: 1px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-gold);
  flex-shrink: 0;
}

.icon-box .icon { width: 20px; height: 20px; }

/* ── Typography ── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-gold);
  margin-bottom: 20px;
}

.section-label .label-dot {
  width: 6px;
  height: 6px;
  background: var(--gold-500);
  border-radius: 50%;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.8;
}

.gradient-text {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mono { font-family: 'JetBrains Mono', monospace; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  transition: var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gold-gradient);
  color: #0a0a0a;
  font-weight: 700;
}

.btn-primary:hover {
  box-shadow: var(--gold-glow);
  transform: translateY(-1px);
}

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

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-gold);
  background: rgba(200, 164, 78, 0.05);
}

.btn-outline-gold {
  background: transparent;
  color: var(--text-gold);
  border: 1px solid var(--border-gold);
}

.btn-outline-gold:hover {
  background: rgba(200, 164, 78, 0.08);
  box-shadow: var(--gold-glow);
}

/* ══════════════════════════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition-base);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(5, 5, 5, 0.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-brand .brand-icon {
  width: 28px;
  height: 28px;
  background: var(--gold-gradient);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-brand .brand-icon .icon {
  width: 16px;
  height: 16px;
  color: #0a0a0a;
  stroke-width: 2.2;
}

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

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.nav-links a:hover { color: var(--text-primary); }

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 4px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition-base);
}

/* ══════════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════════ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 24px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 1000px;
  background: radial-gradient(circle, rgba(45, 212, 191, 0.06) 0%, rgba(200, 164, 78, 0.03) 40%, transparent 70%);
  pointer-events: none;
  animation: hero-glow 8s ease-in-out infinite alternate;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(200, 164, 78, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

@keyframes hero-glow {
  0% { transform: translateX(-50%) scale(1); opacity: 0.8; }
  100% { transform: translateX(-50%) scale(1.1); opacity: 1; }
}

.hero-content {
  max-width: 860px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 100px;
  background: rgba(200, 164, 78, 0.08);
  border: 1px solid var(--border-gold);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-gold);
  margin-bottom: 32px;
  letter-spacing: 0.5px;
}

.hero-badge .badge-dot {
  width: 6px;
  height: 6px;
  background: var(--gold-400);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 28px;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 40px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-actions .btn { padding: 14px 28px; font-size: 0.95rem; }

/* ══════════════════════════════════════════════════════════
   STATS BAR
   ══════════════════════════════════════════════════════════ */

.stats-bar {
  padding: 60px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  backdrop-filter: var(--blur);
}

.stat-item {
  position:relative;
  overflow:hidden;
}

.stat-item::before {
  content:'';
  position:absolute;
  bottom:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--teal),transparent);
  opacity:0;transition:opacity .3s;
}

.stat-item:hover::before { opacity:1; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item { padding: 20px; }

.stat-number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* ══════════════════════════════════════════════════════════
   PROBLEM NARRATIVE
   ══════════════════════════════════════════════════════════ */

.problem-section {
  padding: var(--section-padding);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.problem-text .problem-quote {
  font-size: 1.5rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 32px;
  position: relative;
  padding-left: 24px;
  border-left: 2px solid var(--gold-500);
}

.problem-text .problem-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.problem-text .problem-role {
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

.problem-pain-points {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pain-point {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: rgba(239, 68, 68, 0.04);
  border: 1px solid rgba(239, 68, 68, 0.1);
  border-radius: var(--radius-md);
}

.pain-point .icon { color: var(--critical); flex-shrink: 0; margin-top: 2px; }

.pain-point p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.problem-visual {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 4px;
}

.problem-visual-inner {
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  padding: 32px;
  min-height: 400px;
}

/* ══════════════════════════════════════════════════════════
   LIVE DATA DASHBOARD
   ══════════════════════════════════════════════════════════ */

.dashboard-section {
  padding: var(--section-padding);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.dashboard-header {
  text-align: center;
  margin-bottom: 48px;
}

.dashboard-header .section-subtitle { margin: 0 auto; }

.dashboard-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 4px;
}

.dashboard-card-inner {
  background: var(--bg-tertiary);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

/* Dashboard Top Bar */
.dash-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(0,0,0,0.3);
}

.dash-topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dash-topbar-left .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--low);
  animation: pulse-dot 2s infinite;
}

.dash-topbar-left span {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.dash-topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.dash-topbar-right .icon { width: 14px; height: 14px; }

/* Dashboard Signal Cards */
.dash-signals {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--border-subtle);
}

.signal-card {
  padding: 20px;
  background: var(--bg-tertiary);
  text-align: center;
  transition: var(--transition-fast);
}

.signal-card:hover { background: var(--bg-card-hover); }

.signal-label {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.signal-label .icon { width: 12px; height: 12px; }

.signal-value {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.signal-delta {
  font-size: 0.72rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.signal-delta .icon { width: 12px; height: 12px; }
.signal-delta.up { color: var(--critical); }
.signal-delta.down { color: var(--low); }
.signal-delta.stable { color: var(--text-tertiary); }

/* Dashboard Chart Area */
.dash-chart {
  padding: 24px;
  border-top: 1px solid var(--border-subtle);
}

.dash-chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.dash-chart-title {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.dash-chart-title .icon { width: 14px; height: 14px; color: var(--text-gold); }

.dash-chart-legend {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.72rem;
  color: var(--text-tertiary);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
}

/* Dashboard Alert Feed */
.dash-alerts {
  padding: 20px 24px;
  border-top: 1px solid var(--border-subtle);
  background: rgba(0,0,0,0.2);
}

.dash-alert-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.dash-alert-title {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.dash-alert-title .icon { width: 14px; height: 14px; color: var(--high); }

.alert-feed {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.alert-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: rgba(0,0,0,0.3);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
  transition: var(--transition-fast);
}

.alert-row:hover { background: rgba(255,255,255,0.02); }
.alert-row.critical { border-left-color: var(--critical); }
.alert-row.high { border-left-color: var(--high); }
.alert-row.medium { border-left-color: var(--medium); }
.alert-row.low-sev { border-left-color: var(--low); }

.alert-severity {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 3px;
  flex-shrink: 0;
}

.alert-severity.critical { background: rgba(239,68,68,0.15); color: var(--critical); }
.alert-severity.high { background: rgba(249,115,22,0.15); color: var(--high); }
.alert-severity.medium { background: rgba(234,179,8,0.15); color: var(--medium); }

.alert-text {
  flex: 1;
  font-size: 0.82rem;
  color: var(--text-secondary);
  min-width: 0;
}

.alert-zone {
  font-size: 0.72rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
  font-weight: 500;
}

.alert-time {
  font-size: 0.68rem;
  color: var(--text-tertiary);
  font-family: 'JetBrains Mono', monospace;
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════
   CAPABILITIES (PS Requirements)
   ══════════════════════════════════════════════════════════ */

.capabilities {
  padding: var(--section-padding);
}

.capabilities-header {
  text-align: center;
  margin-bottom: 72px;
}

.capabilities-header .section-subtitle { margin: 0 auto; }

.capability-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.capability-card {
  display: grid;
  grid-template-columns: 60px 1fr 1.2fr;
  gap: 24px;
  align-items: start;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  position: relative;
  overflow: hidden;
}

.capability-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
  opacity: 0; transition: opacity .3s;
}

.capability-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-teal);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

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

.capability-number {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  padding-top: 4px;
}

.capability-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.capability-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.capability-solution {
  padding: 16px 20px;
  background: rgba(200, 164, 78, 0.04);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.capability-solution strong {
  color: var(--text-gold);
  font-weight: 600;
}

/* ══════════════════════════════════════════════════════════
   INTELLIGENCE PIPELINE (Agents — no emojis)
   ══════════════════════════════════════════════════════════ */

.pipeline-section {
  padding: var(--section-padding);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.pipeline-header {
  text-align: center;
  margin-bottom: 64px;
}

.pipeline-header .section-subtitle { margin: 0 auto; }

.pipeline-flow {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pipeline-layer {
  margin-bottom: 0;
}

.pipeline-layer-label {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-tertiary);
  margin-bottom: 10px;
  padding-left: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pipeline-layer-label .icon { width: 12px; height: 12px; color: var(--text-gold); }

.pipeline-nodes {
  display: grid;
  gap: 10px;
}

.pipeline-nodes.cols-1 { grid-template-columns: 1fr; }
.pipeline-nodes.cols-2 { grid-template-columns: 1fr 1fr; }
.pipeline-nodes.cols-3 { grid-template-columns: 1fr 1fr 1fr; }

.pipeline-node {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: var(--transition-base);
}

.pipeline-node:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-gold);
}

.pipeline-node .icon-box { width: 36px; height: 36px; }
.pipeline-node .icon-box .icon { width: 16px; height: 16px; }

.pipeline-node-info { flex: 1; min-width: 0; }

.pipeline-node-name {
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.pipeline-node-role {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  line-height: 1.4;
}

.pipeline-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  color: var(--gold-500);
}

.pipeline-arrow .icon { width: 18px; height: 18px; }

/* ══════════════════════════════════════════════════════════
   ZONES
   ══════════════════════════════════════════════════════════ */

.zones {
  padding: var(--section-padding);
}

.zones-header {
  text-align: center;
  margin-bottom: 64px;
}

.zones-header .section-subtitle { margin: 0 auto; }

.zones-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.zone-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: var(--transition-base);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  position: relative;
  overflow: hidden;
}

.zone-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
  opacity: 0; transition: opacity .3s;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.zone-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(45, 212, 191, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.35), 0 0 0 1px rgba(45,212,191,0.08);
}

.zone-card:hover::after { opacity: 1; }

.zone-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.zone-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulse-dot 2.5s infinite;
}

.zone-status-dot.ok { background: var(--low); }
.zone-status-dot.warning { background: var(--high); }
.zone-status-dot.critical { background: var(--critical); }

.zone-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.zone-region {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}

.zone-signals {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.zone-signal {
  padding: 8px;
  background: rgba(0,0,0,0.3);
  border-radius: 6px;
}

.zone-signal-label {
  font-size: 0.62rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.zone-signal-value {
  font-size: 0.88rem;
  font-weight: 700;
}

.zone-coords {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-tertiary);
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 6px;
}

.zone-coords .icon { width: 11px; height: 11px; }

/* ══════════════════════════════════════════════════════════
   HOW IT WORKS (Insight to Action)
   ══════════════════════════════════════════════════════════ */

.workflow-section {
  padding: var(--section-padding);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.workflow-header {
  margin-bottom: 64px;
}

.workflow-cards {
  display: flex;
  flex-direction: column;
  gap: 72px;
}

.workflow-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.workflow-card.reversed { direction: rtl; }
.workflow-card.reversed > * { direction: ltr; }

.workflow-text { padding: 20px 0; }

.workflow-step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-gold);
  margin-bottom: 16px;
}

.workflow-step .icon { width: 14px; height: 14px; }

.workflow-text h3 {
  font-size: 1.7rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.workflow-text p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.workflow-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.workflow-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.workflow-features .icon { color: var(--low); flex-shrink: 0; margin-top: 3px; width: 16px; height: 16px; }

.workflow-visual {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  padding: 4px;
}

.workflow-visual-inner {
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  padding: 28px;
  min-height: 280px;
}

/* ══════════════════════════════════════════════════════════
   FAQ
   ══════════════════════════════════════════════════════════ */

.faq {
  padding: var(--section-padding);
}

.faq-header {
  text-align: center;
  margin-bottom: 64px;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-base);
}

.faq-item:hover { border-color: var(--border-gold); }
.faq-item.active { border-color: var(--border-gold); background: var(--bg-card); }

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: var(--transition-fast);
  gap: 16px;
}

.faq-question:hover { color: var(--text-gold); }

.faq-icon {
  flex-shrink: 0;
  transition: var(--transition-base);
  color: var(--text-tertiary);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ══════════════════════════════════════════════════════════
   CTA
   ══════════════════════════════════════════════════════════ */

.cta-section {
  padding: var(--section-padding);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, rgba(200, 164, 78, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-content { position: relative; z-index: 1; }

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.cta-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ══════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════ */

.footer {
  padding: 48px 0;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 600;
}

.footer-text {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  max-width: 500px;
  text-align: center;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-links a .icon { width: 14px; height: 14px; }
.footer-links a:hover { color: var(--text-gold); }

/* ══════════════════════════════════════════════════════════
   ANIMATIONS
   ══════════════════════════════════════════════════════════ */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }
.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
  .problem-grid { grid-template-columns: 1fr; gap: 48px; }
  .zones-grid { grid-template-columns: repeat(2, 1fr); }
  .dash-signals { grid-template-columns: repeat(3, 1fr); }
  .workflow-card { grid-template-columns: 1fr; gap: 32px; }
  .workflow-card.reversed { direction: ltr; }
  .pipeline-nodes.cols-3 { grid-template-columns: 1fr 1fr; }
  .capability-card { grid-template-columns: 48px 1fr; }
  .capability-solution { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  :root { --section-padding: 80px 0; }

  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100vh;
    background: rgba(5, 5, 5, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    z-index: 999;
  }

  .nav-links.active { display: flex; }
  .nav-links a { font-size: 1.2rem; }
  .hamburger { display: flex; z-index: 1001; }

  .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .hamburger.active span:nth-child(2) { opacity: 0; }
  .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .nav-cta .btn { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .zones-grid { grid-template-columns: 1fr; }
  .dash-signals { grid-template-columns: repeat(2, 1fr); }
  .pipeline-nodes.cols-2, .pipeline-nodes.cols-3 { grid-template-columns: 1fr; }
  .capability-card { grid-template-columns: 1fr; }
  .capability-number { font-size: 1.5rem; }

  .footer .container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .dash-signals { grid-template-columns: 1fr; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn { width: 100%; justify-content: center; }
  .zone-risk-grid { grid-template-columns: 1fr; }
  .zone-risk-header { flex-direction: column; gap: 12px; }
  .zone-risk-summary { flex-wrap: wrap; }
  .alert-row { flex-wrap: wrap; gap: 8px; }
  .alert-content { width: 100%; }
}

/* ══════════════════════════════════════════════════════════
   ZONE RISK OVERVIEW
   ══════════════════════════════════════════════════════════ */

.zone-risk-overview {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 4px;
}

.zone-risk-overview > * {
  background: var(--bg-tertiary);
}

.zone-risk-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  background: rgba(0,0,0,0.3);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  border-bottom: 1px solid var(--border-subtle);
}

.zone-risk-title {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.zone-risk-title .icon { width: 16px; height: 16px; color: var(--text-gold); }

.zone-risk-summary {
  display: flex;
  align-items: center;
  gap: 20px;
}

.risk-count {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.risk-count .icon { width: 14px; height: 14px; }
.critical-count { color: var(--critical); }
.warning-count { color: var(--high); }
.ok-count { color: var(--low); }

.zone-risk-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  overflow: hidden;
}

.zone-risk-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--bg-tertiary);
  transition: var(--transition-fast);
  position: relative;
}

.zone-risk-card:hover { background: var(--bg-card-hover); }

.zone-risk-indicator {
  width: 4px;
  height: 32px;
  border-radius: 4px;
  flex-shrink: 0;
}

.risk-critical .zone-risk-indicator { background: var(--critical); box-shadow: 0 0 8px rgba(239,68,68,0.3); }
.risk-warning .zone-risk-indicator { background: var(--high); box-shadow: 0 0 8px rgba(249,115,22,0.2); }
.risk-ok .zone-risk-indicator { background: var(--low); opacity: 0.5; }

.zone-risk-info { flex: 1; min-width: 0; }

.zone-risk-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.zone-risk-detail {
  font-size: 0.72rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.zone-risk-badge {
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.8px;
  padding: 3px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}

.zone-risk-badge.critical { background: rgba(239,68,68,0.15); color: var(--critical); }
.zone-risk-badge.warning { background: rgba(249,115,22,0.12); color: var(--high); }
.zone-risk-badge.ok { background: rgba(34,197,94,0.1); color: var(--low); }

.zone-risk-score {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.risk-critical .zone-risk-score { color: var(--critical); }
.risk-warning .zone-risk-score { color: var(--high); }

/* Pulse animation for critical zone cards */
.risk-critical {
  animation: risk-pulse 3s ease-in-out infinite;
}

@keyframes risk-pulse {
  0%, 100% { background: var(--bg-tertiary); }
  50% { background: rgba(239, 68, 68, 0.03); }
}

/* ══════════════════════════════════════════════════════════
   DASHBOARD MAIN GRID (Chart + Root Cause)
   ══════════════════════════════════════════════════════════ */

.dash-main-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 1px;
  background: var(--border-subtle);
  border-top: 1px solid var(--border-subtle);
}

.dash-main-grid > .dash-chart {
  border-top: none;
}

/* Root Cause Panel */
.dash-rootcause {
  padding: 24px;
  background: var(--bg-tertiary);
  display: flex;
  flex-direction: column;
}

.rootcause-bars {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 20px;
}

.rootcause-item { display: block; }

.rootcause-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.rootcause-bar {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,0.05);
  border-radius: 3px;
  overflow: hidden;
}

.rootcause-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.rootcause-prediction {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px;
  background: rgba(239, 68, 68, 0.05);
  border: 1px solid rgba(239, 68, 68, 0.12);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.rootcause-prediction .icon { color: var(--critical); margin-top: 2px; flex-shrink: 0; }

.rootcause-cascade {
  padding: 14px;
  background: rgba(200, 164, 78, 0.04);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
}

.cascade-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-gold);
  margin-bottom: 10px;
}

.cascade-zones {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cascade-zone {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.cascade-zone span:first-child { flex: 1; }

.cascade-prob {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.8rem;
}

.cascade-eta {
  font-size: 0.68rem;
  color: var(--text-tertiary);
  font-family: 'JetBrains Mono', monospace;
}

/* ══════════════════════════════════════════════════════════
   ENHANCED ALERT ROWS
   ══════════════════════════════════════════════════════════ */

.alert-count-badge {
  padding: 4px 12px;
  background: rgba(249, 115, 22, 0.1);
  border: 1px solid rgba(249, 115, 22, 0.2);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--high);
}

.alert-severity-bar {
  width: 3px;
  align-self: stretch;
  border-radius: 2px;
  flex-shrink: 0;
}

.alert-row.critical .alert-severity-bar { background: var(--critical); box-shadow: 0 0 6px rgba(239,68,68,0.3); }
.alert-row.high .alert-severity-bar { background: var(--high); box-shadow: 0 0 6px rgba(249,115,22,0.2); }
.alert-row.medium .alert-severity-bar { background: var(--medium); }

.alert-content {
  flex: 1;
  min-width: 0;
}

.alert-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 4px;
}

.alert-score {
  font-size: 0.68rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-tertiary);
}

.alert-impact {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-gold);
  font-family: 'JetBrains Mono', monospace;
}

/* ── Responsive adjustments for new dashboard elements ── */
@media (max-width: 1024px) {
  .zone-risk-grid { grid-template-columns: repeat(2, 1fr); }
  .dash-main-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .zone-risk-grid { grid-template-columns: 1fr; }
  .zone-risk-header { flex-direction: column; gap: 12px; align-items: flex-start; }
  .zone-status-grid { grid-template-columns: 1fr; }
  .zone-status-header { flex-direction: column; gap: 12px; align-items: flex-start; }
  .alert-row { flex-wrap: wrap; }
  .alert-content { order: 3; width: 100%; }
  .alert-zone { order: 4; }
  .alert-time { order: 5; }
}

/* ══════════════════════════════════════════════════════════
   ZONE STATUS PANEL — Rich Zone Cards
   ══════════════════════════════════════════════════════════ */

/* Widen dashboard section */
.dashboard-section .container { max-width: 1320px; }

.zone-status-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  overflow: hidden;
}

.zone-status-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  background: rgba(0,0,0,0.35);
  border-bottom: 1px solid var(--border-subtle);
}

.zone-status-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.zone-status-title .icon { width: 18px; height: 18px; color: var(--text-gold); }

.zone-status-subtitle {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 400;
}

.zone-status-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-subtle);
}

.zone-status-card {
  padding: 20px 22px;
  background: var(--bg-tertiary);
  transition: var(--transition-fast);
  border-top: 3px solid transparent;
}

.zone-status-card:hover {
  background: var(--bg-card-hover);
}

.status-critical { border-top-color: var(--critical); }
.status-warning { border-top-color: var(--high); }
.status-ok { border-top-color: transparent; }

.status-critical:hover { background: rgba(239, 68, 68, 0.04); }
.status-warning:hover { background: rgba(249, 115, 22, 0.04); }

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

.zs-name-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.zs-name-row .icon { color: var(--text-gold); }

.zs-name-row h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.zs-badge {
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.8px;
  padding: 2px 7px;
  border-radius: 3px;
  flex-shrink: 0;
}

.zs-badge.critical { background: rgba(239,68,68,0.15); color: var(--critical); }
.zs-badge.warning { background: rgba(249,115,22,0.12); color: var(--high); }
.zs-badge.ok { background: rgba(34,197,94,0.08); color: var(--low); }

.zs-region {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.68rem;
  color: var(--text-tertiary);
  margin-bottom: 12px;
  font-family: 'JetBrains Mono', monospace;
}

.zs-region .icon { width: 11px; height: 11px; }

.zs-signals {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  margin-bottom: 12px;
}

.zs-sig {
  text-align: center;
  padding: 6px 2px;
  background: rgba(0,0,0,0.25);
  border-radius: 4px;
}

.zs-sig-label {
  display: block;
  font-size: 0.58rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
  margin-bottom: 2px;
}

.zs-sig-val {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
}

.zs-risk-bar {
  width: 100%;
  height: 4px;
  background: rgba(255,255,255,0.04);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 6px;
}

.zs-risk-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.zs-risk-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.65rem;
  color: var(--text-tertiary);
}

.zs-risk-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.78rem;
}

/* Critical zone glow */
.status-critical {
  position: relative;
}

.status-critical::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--critical);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.4);
}

/* Responsive for zone status panel */
@media (max-width: 1024px) {
  .zone-status-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-section .container { max-width: 100%; }
}

@media (max-width: 480px) {
  .zone-status-grid { grid-template-columns: 1fr; }
  .zs-signals { grid-template-columns: repeat(2, 1fr); }
}