/* ============================================
   FireNavi - 화이어내비 Design System
   호화유람선 화재 대피 내비게이션 솔루션
   Premium Edition
   ============================================ */

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

:root {
  /* Primary Colors */
  --fire-red: #E53E3E;
  --fire-orange: #ED8936;
  --fire-yellow: #ECC94B;
  --navy: #1A365D;
  --navy-light: #2A4A7F;
  --navy-dark: #0D1B2A;

  /* Semantic Colors */
  --danger: #E53E3E;
  --warning: #ED8936;
  --safe: #38A169;
  --info: #3182CE;
  --accent: #805AD5;

  /* Neutrals - Premium Light Theme */
  --bg-primary: #F8FAFC;
  --bg-secondary: #EDF2F7;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FAFBFC;
  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --border: #E2E8F0;
  --border-light: #CBD5E1;

  /* Gradients */
  --gradient-fire: linear-gradient(135deg, #E53E3E 0%, #ED8936 50%, #ECC94B 100%);
  --gradient-navy: linear-gradient(135deg, #1A365D 0%, #2A4A7F 100%);
  --gradient-dark: linear-gradient(180deg, #F8FAFC 0%, #EDF2F7 100%);
  --gradient-danger: linear-gradient(135deg, #E53E3E 0%, #C53030 100%);
  --gradient-safe: linear-gradient(135deg, #38A169 0%, #2F855A 100%);
  --gradient-premium: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(255,255,255,0.7));

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Premium Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.03);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.1), 0 8px 20px rgba(0,0,0,0.05);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.03);
  --shadow-card-hover: 0 12px 48px rgba(0,0,0,0.1), 0 4px 16px rgba(0,0,0,0.05);
  --shadow-glow-red: 0 0 30px rgba(229,62,62,0.12);
  --shadow-glow-blue: 0 0 30px rgba(49,130,206,0.12);
  --shadow-glow-orange: 0 4px 24px rgba(237,137,54,0.15);

  /* Typography */
  --font-main: 'Inter', 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-heading: 'Inter', 'Pretendard', sans-serif;
}

/* ============ RESET & BASE ============ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(237,137,54,0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(49,130,206,0.03) 0%, transparent 60%);
}

a {
  color: #2B6CB0;
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #2C5282;
}

img {
  max-width: 100%;
  height: auto;
}

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94A3B8;
}

/* ============ LAYOUT ============ */
.container {
  max-width: 1800px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
  padding: var(--space-xl) 0;
}

/* ============ NAVIGATION ============ */
.top-nav {
  background: rgba(255, 240, 245, 0.9);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
  border-bottom: 1px solid rgba(252, 207, 224, 0.6);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0 var(--space-xl);
}

.nav-inner {
  max-width: 1800px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-brand .fire-icon {
  font-size: 1.6rem;
  filter: drop-shadow(0 0 8px rgba(237, 137, 54, 0.5));
}

.nav-brand span {
  background: linear-gradient(135deg, #C53030 0%, #DD6B20 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-brand .nav-tagline {
  font-size: 0.6rem;
  font-weight: 700;
  color: #805AD5;
  -webkit-text-fill-color: #805AD5;
  background: none;
  letter-spacing: 0.02em;
  white-space: nowrap;
  opacity: 1;
  border-left: 2px solid #B794F4;
  padding-left: 10px;
  margin-left: 2px;
  line-height: 1.2;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0px;
  list-style: none;
}

.nav-links a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: #475569;
  font-size: 0.78rem;
  font-weight: 500;
  transition: all 0.2s ease;
  white-space: nowrap;
  position: relative;
}

.nav-links a:hover {
  background: linear-gradient(135deg, rgba(237,137,54,0.1), rgba(229,62,62,0.08));
  color: #C2410C;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(237,137,54,0.15);
}

.nav-links a.active {
  background: rgba(237,137,54,0.08);
  color: #C2410C;
  font-weight: 600;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--gradient-fire);
  border-radius: 1px;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #1E293B;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* ============ HERO SECTION ============ */
.hero {
  padding: var(--space-3xl) 0 var(--space-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(237,137,54,0.04) 0%, transparent 60%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0); }
  100% { transform: translate(5%, 5%); }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 900;
  margin-bottom: var(--space-md);
  position: relative;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #C53030 0%, #DD6B20 50%, #D69E2E 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: #475569;
  max-width: 750px;
  margin: 0 auto var(--space-xl);
  position: relative;
  line-height: 1.8;
}

.hero-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: var(--space-lg);
  position: relative;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 24px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
}

.badge:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.badge--danger { border-color: rgba(229,62,62,0.3); color: var(--danger); background: rgba(254,226,226,0.5); }
.badge--warning { border-color: rgba(237,137,54,0.3); color: #C2410C; background: rgba(255,237,213,0.5); }
.badge--safe { border-color: rgba(56,161,105,0.3); color: var(--safe); background: rgba(209,250,229,0.5); }
.badge--info { border-color: rgba(49,130,206,0.3); color: var(--info); background: rgba(219,234,254,0.5); }
.badge--accent { border-color: rgba(128,90,213,0.3); color: var(--accent); background: rgba(237,233,254,0.5); }

/* ============ CARDS ============ */
.card-grid {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-xl) var(--space-lg);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.card:hover {
  transform: translateY(-6px);
  border-color: transparent;
  box-shadow: var(--shadow-card-hover);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  transition: height 0.3s ease;
}

.card:hover::before {
  height: 5px;
}

.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0) 60%, rgba(248,250,252,0.5) 100%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

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

.card--A::before { background: var(--gradient-fire); }
.card--A { background: linear-gradient(160deg, rgba(254,226,226,0.25) 0%, #FFFFFF 35%); border-color: rgba(229,62,62,0.12); }
.card--A:hover { border-color: rgba(229,62,62,0.25); }

.card--B::before { background: var(--gradient-navy); }
.card--B { background: linear-gradient(160deg, rgba(219,234,254,0.3) 0%, #FFFFFF 35%); border-color: rgba(26,54,93,0.12); }
.card--B:hover { border-color: rgba(42,74,127,0.25); }

.card--C::before { background: linear-gradient(135deg, #38A169, #68D391); }
.card--C { background: linear-gradient(160deg, rgba(209,250,229,0.3) 0%, #FFFFFF 35%); border-color: rgba(56,161,105,0.12); }
.card--C:hover { border-color: rgba(56,161,105,0.25); }

.card--D::before { background: linear-gradient(135deg, #805AD5, #B794F4); }
.card--D { background: linear-gradient(160deg, rgba(237,233,254,0.3) 0%, #FFFFFF 35%); border-color: rgba(128,90,213,0.12); }
.card--D:hover { border-color: rgba(128,90,213,0.25); }

.card--sim::before { background: linear-gradient(135deg, #3182CE, #63B3ED); }
.card--sim { background: linear-gradient(160deg, rgba(219,234,254,0.2) 0%, #FFFFFF 35%); border-color: rgba(49,130,206,0.12); }
.card--sim:hover { border-color: rgba(49,130,206,0.25); }

.card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: var(--space-md);
  position: relative;
}

.card-icon--A { background: linear-gradient(135deg, #FEE2E2, #FED7AA); color: #DC2626; }
.card-icon--B { background: linear-gradient(135deg, #DBEAFE, #C7D2FE); color: #2563EB; }
.card-icon--C { background: linear-gradient(135deg, #D1FAE5, #A7F3D0); color: #059669; }
.card-icon--D { background: linear-gradient(135deg, #EDE9FE, #DDD6FE); color: #7C3AED; }
.card-icon--sim { background: linear-gradient(135deg, #DBEAFE, #BFDBFE); color: #2563EB; }

.card-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: var(--space-xs);
}

.card-label--A { color: var(--fire-orange); }
.card-label--B { color: #63B3ED; }
.card-label--C { color: var(--safe); }
.card-label--D { color: var(--accent); }

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.card-desc {
  color: #475569;
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  font-size: 0.7rem;
  padding: 4px 12px;
  border-radius: 16px;
  background: #F1F5F9;
  color: #475569;
  border: 1px solid #E2E8F0;
  font-weight: 500;
  transition: all 0.2s;
}

.tag:hover {
  background: #E2E8F0;
  border-color: #CBD5E1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: var(--space-md);
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all 0.25s ease;
  text-decoration: none;
  position: relative;
  z-index: 1;
}

.card-link--A { background: #FEE2E2; color: #DC2626; }
.card-link--A:hover { background: #FECACA; color: #B91C1C; box-shadow: 0 4px 12px rgba(220,38,38,0.15); }
.card-link--B { background: #DBEAFE; color: #2563EB; }
.card-link--B:hover { background: #BFDBFE; color: #1D4ED8; box-shadow: 0 4px 12px rgba(37,99,235,0.15); }
.card-link--C { background: #D1FAE5; color: #059669; }
.card-link--C:hover { background: #A7F3D0; color: #047857; box-shadow: 0 4px 12px rgba(5,150,105,0.15); }
.card-link--D { background: #EDE9FE; color: #7C3AED; }
.card-link--D:hover { background: #DDD6FE; color: #6D28D9; box-shadow: 0 4px 12px rgba(124,58,237,0.15); }

/* ============ SECTION HEADERS ============ */
.section-header {
  margin-bottom: var(--space-xl);
}

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.3;
}

.section-desc {
  color: #475569;
  font-size: 1rem;
  max-width: 750px;
  margin-top: var(--space-sm);
  line-height: 1.7;
}

/* ============ PAGE HEADER (Sub pages) ============ */
.page-header {
  padding: var(--space-2xl) 0 var(--space-xl);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-xl);
  position: relative;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 120px;
  height: 3px;
  background: var(--gradient-fire);
  border-radius: 2px;
}

.page-header .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.page-header .breadcrumb a {
  color: var(--text-muted);
  transition: color 0.2s;
}

.page-header .breadcrumb a:hover {
  color: var(--text-primary);
}

.page-header .page-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.03em;
}

.page-header .page-desc {
  color: #475569;
  font-size: 1.05rem;
  max-width: 900px;
  line-height: 1.8;
}

/* ============ CONTENT SECTIONS ============ */
.content-section {
  margin-bottom: var(--space-2xl);
  padding: var(--space-xl) var(--space-2xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.content-section:hover {
  box-shadow: var(--shadow-lg);
}

.content-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  border-radius: 0 2px 2px 0;
}

/* Section color cycling - left accent + visible background tint */
.content-section:nth-child(8n+1) { background: linear-gradient(135deg, rgba(254,226,226,0.5) 0%, rgba(255,245,245,0.8) 100%); }
.content-section:nth-child(8n+1)::before { background: linear-gradient(180deg, #E53E3E, #ED8936); }
.content-section:nth-child(8n+1) h2 { color: #C2410C; border-bottom-color: rgba(229,62,62,0.2); }

.content-section:nth-child(8n+2) { background: linear-gradient(135deg, rgba(219,234,254,0.5) 0%, rgba(239,246,255,0.8) 100%); }
.content-section:nth-child(8n+2)::before { background: linear-gradient(180deg, #2563EB, #3B82F6); }
.content-section:nth-child(8n+2) h2 { color: #1D4ED8; border-bottom-color: rgba(37,99,235,0.2); }

.content-section:nth-child(8n+3) { background: linear-gradient(135deg, rgba(209,250,229,0.5) 0%, rgba(236,253,245,0.8) 100%); }
.content-section:nth-child(8n+3)::before { background: linear-gradient(180deg, #059669, #10B981); }
.content-section:nth-child(8n+3) h2 { color: #047857; border-bottom-color: rgba(5,150,105,0.2); }

.content-section:nth-child(8n+4) { background: linear-gradient(135deg, rgba(237,233,254,0.5) 0%, rgba(245,243,255,0.8) 100%); }
.content-section:nth-child(8n+4)::before { background: linear-gradient(180deg, #7C3AED, #A78BFA); }
.content-section:nth-child(8n+4) h2 { color: #6D28D9; border-bottom-color: rgba(124,58,237,0.2); }

.content-section:nth-child(8n+5) { background: linear-gradient(135deg, rgba(207,250,254,0.5) 0%, rgba(236,254,255,0.8) 100%); }
.content-section:nth-child(8n+5)::before { background: linear-gradient(180deg, #0891B2, #22D3EE); }
.content-section:nth-child(8n+5) h2 { color: #0E7490; border-bottom-color: rgba(8,145,178,0.2); }

.content-section:nth-child(8n+6) { background: linear-gradient(135deg, rgba(254,243,199,0.5) 0%, rgba(255,251,235,0.8) 100%); }
.content-section:nth-child(8n+6)::before { background: linear-gradient(180deg, #D97706, #F59E0B); }
.content-section:nth-child(8n+6) h2 { color: #B45309; border-bottom-color: rgba(217,119,6,0.2); }

.content-section:nth-child(8n+7) { background: linear-gradient(135deg, rgba(252,231,243,0.5) 0%, rgba(253,242,248,0.8) 100%); }
.content-section:nth-child(8n+7)::before { background: linear-gradient(180deg, #DB2777, #EC4899); }
.content-section:nth-child(8n+7) h2 { color: #BE185D; border-bottom-color: rgba(219,39,119,0.2); }

.content-section:nth-child(8n+8) { background: linear-gradient(135deg, rgba(224,231,255,0.5) 0%, rgba(238,242,255,0.8) 100%); }
.content-section:nth-child(8n+8)::before { background: linear-gradient(180deg, #4338CA, #6366F1); }
.content-section:nth-child(8n+8) h2 { color: #3730A3; border-bottom-color: rgba(67,56,202,0.2); }

.content-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  letter-spacing: -0.01em;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid #F1F5F9;
}

.content-section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: var(--space-xl) 0 var(--space-sm);
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.content-section p {
  color: #334155;
  margin-bottom: var(--space-md);
  line-height: 1.85;
}

.content-section ul, .content-section ol {
  color: #334155;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.content-section li {
  margin-bottom: var(--space-sm);
  line-height: 1.75;
  color: #334155;
}

/* ============ FORMULA / CODE BLOCKS ============ */
.formula-block {
  background: linear-gradient(135deg, #F8FAFC, #F1F5F9);
  border: 1px solid #E2E8F0;
  border-left: 4px solid #3182CE;
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-md) 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  overflow-x: auto;
  position: relative;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.02);
}

.formula-block .formula-label {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 0.7rem;
  color: #64748B;
  background: #E2E8F0;
  padding: 2px 10px;
  border-radius: 6px;
  font-weight: 500;
}

.formula-block code {
  color: #2563EB;
}

.formula-block .math {
  color: #C2410C;
  font-size: 1.1rem;
  line-height: 2;
}

.code-block {
  background: #0F172A;
  border: 1px solid #1E293B;
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-md) 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  overflow-x: auto;
  color: #E2E8F0;
  line-height: 1.7;
  box-shadow: var(--shadow-lg);
}

.code-block .keyword { color: #FF7B72; }
.code-block .function { color: #D2A8FF; }
.code-block .string { color: #A5D6FF; }
.code-block .comment { color: #8B949E; }
.code-block .number { color: #79C0FF; }

/* ============ DATA TABLES ============ */
.data-table-wrap {
  overflow-x: auto;
  margin: var(--space-md) 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th {
  background: linear-gradient(180deg, #F8FAFC, #F1F5F9);
  padding: 14px 20px;
  text-align: left;
  font-weight: 600;
  color: #1E293B;
  border-bottom: 2px solid #CBD5E1;
  white-space: nowrap;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table td {
  padding: 14px 20px;
  border-bottom: 1px solid #F1F5F9;
  color: #334155;
}

.data-table tr:hover td {
  background: #FAFBFC;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table .highlight-cell {
  font-weight: 600;
}

.data-table .danger-cell { color: var(--danger); }
.data-table .warning-cell { color: var(--warning); }
.data-table .safe-cell { color: var(--safe); }

/* ============ STAT CARDS ============ */
.stat-grid {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.stat-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--border);
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.stat-card:hover::before {
  width: 60%;
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.stat-value--danger { color: var(--danger); }
.stat-card:has(.stat-value--danger) { background: linear-gradient(180deg, rgba(254,226,226,0.3) 0%, #FFFFFF 60%); border-color: rgba(229,62,62,0.15); }
.stat-card:has(.stat-value--danger)::before { background: var(--danger); }

.stat-value--warning { color: var(--warning); }
.stat-card:has(.stat-value--warning) { background: linear-gradient(180deg, rgba(255,237,213,0.35) 0%, #FFFFFF 60%); border-color: rgba(237,137,54,0.15); }
.stat-card:has(.stat-value--warning)::before { background: var(--warning); }

.stat-value--safe { color: var(--safe); }
.stat-card:has(.stat-value--safe) { background: linear-gradient(180deg, rgba(209,250,229,0.3) 0%, #FFFFFF 60%); border-color: rgba(56,161,105,0.15); }
.stat-card:has(.stat-value--safe)::before { background: var(--safe); }

.stat-value--info { color: var(--info); }
.stat-card:has(.stat-value--info) { background: linear-gradient(180deg, rgba(219,234,254,0.35) 0%, #FFFFFF 60%); border-color: rgba(49,130,206,0.15); }
.stat-card:has(.stat-value--info)::before { background: var(--info); }

.stat-value--accent { color: var(--accent); }
.stat-card:has(.stat-value--accent) { background: linear-gradient(180deg, rgba(237,233,254,0.35) 0%, #FFFFFF 60%); border-color: rgba(128,90,213,0.15); }
.stat-card:has(.stat-value--accent)::before { background: var(--accent); }

.stat-label {
  font-size: 0.8rem;
  color: #64748B;
  font-weight: 500;
}

/* ============ DIAGRAM / FLOW ============ */
.flow-diagram {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  margin: var(--space-lg) 0;
  background: linear-gradient(135deg, #F8FAFC, #F1F5F9);
  border-radius: var(--radius-lg);
  border: 1px solid #E2E8F0;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  min-width: 140px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.flow-step:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.flow-step-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  background: var(--gradient-fire);
  color: white;
  box-shadow: 0 2px 8px rgba(229,62,62,0.2);
}

.flow-step-title {
  font-size: 0.85rem;
  font-weight: 600;
}

.flow-step-desc {
  font-size: 0.75rem;
  color: #64748B;
}

.flow-arrow {
  font-size: 1.5rem;
  color: #CBD5E1;
}

/* ============ SIMULATION CANVAS ============ */
.sim-container {
  position: relative;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--space-lg) 0;
  box-shadow: var(--shadow-md);
}

.sim-canvas {
  width: 100%;
  height: 500px;
  display: block;
}

.sim-controls {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(180deg, #FFFFFF, #F8FAFC);
  border-top: 1px solid #E2E8F0;
}

.sim-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid #CBD5E1;
  background: #FFFFFF;
  color: #1E293B;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.sim-btn:hover {
  background: #F1F5F9;
  border-color: #94A3B8;
  box-shadow: var(--shadow-sm);
}

.sim-btn--primary {
  background: var(--fire-red);
  border-color: var(--fire-red);
  color: white;
  box-shadow: 0 2px 8px rgba(229,62,62,0.2);
}

.sim-btn--primary:hover {
  background: #C53030;
  box-shadow: 0 4px 12px rgba(229,62,62,0.3);
}

.sim-btn--safe {
  background: var(--safe);
  border-color: var(--safe);
  color: white;
  box-shadow: 0 2px 8px rgba(56,161,105,0.2);
}

.sim-info {
  margin-left: auto;
  display: flex;
  gap: var(--space-lg);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.sim-info span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ============ RISK MAP LEGEND ============ */
.risk-legend {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-md);
  margin: var(--space-md) 0;
  border: 1px solid #E2E8F0;
}

.risk-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 500;
}

.risk-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.risk-dot--critical { background: var(--danger); box-shadow: 0 0 8px rgba(229,62,62,0.5); }
.risk-dot--high { background: var(--warning); }
.risk-dot--medium { background: var(--fire-yellow); }
.risk-dot--low { background: var(--safe); }
.risk-dot--safe { background: #3182CE; }

/* ============ TABS ============ */
.tabs {
  display: flex;
  border-bottom: 2px solid #F1F5F9;
  margin-bottom: var(--space-lg);
  overflow-x: auto;
  gap: 2px;
}

.tab-btn {
  padding: 12px 22px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: #64748B;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  margin-bottom: -2px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.tab-btn:hover {
  color: #1E293B;
  background: #F8FAFC;
}

.tab-btn.active {
  color: #C2410C;
  border-bottom-color: var(--fire-orange);
  background: rgba(237,137,54,0.04);
  font-weight: 600;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeInUp 0.3s ease;
}

/* ============ ACCORDION ============ */
.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease;
}

.accordion-item:hover {
  box-shadow: var(--shadow-md);
}

.accordion-header {
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(180deg, #FFFFFF, #FAFBFC);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  color: #1E293B;
  transition: background 0.2s;
}

.accordion-header:hover {
  background: #F8FAFC;
}

.accordion-header::after {
  content: '+';
  font-size: 1.2rem;
  color: #94A3B8;
  transition: transform 0.3s, color 0.3s;
  font-weight: 300;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #F1F5F9;
}

.accordion-item.open .accordion-header::after {
  content: '\2212';
  background: rgba(237,137,54,0.1);
  color: var(--fire-orange);
}

.accordion-body {
  padding: 0 var(--space-lg);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.accordion-item.open .accordion-body {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  max-height: 2000px;
}

/* ============ TIMELINE ============ */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--fire-orange), var(--safe));
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--fire-orange);
  border: 3px solid #FFFFFF;
  box-shadow: 0 0 0 2px rgba(237,137,54,0.2);
}

.timeline-item.completed::before {
  background: var(--safe);
  box-shadow: 0 0 0 2px rgba(56,161,105,0.2);
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 500;
}

.timeline-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 0.9rem;
  color: #475569;
}

/* ============ PROGRESS BAR ============ */
.progress-bar {
  height: 8px;
  background: #EDF2F7;
  border-radius: 4px;
  overflow: hidden;
  margin: var(--space-sm) 0;
}

.progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 1s ease;
}

.progress-fill--danger { background: var(--gradient-danger); }
.progress-fill--warning { background: linear-gradient(90deg, var(--warning), var(--fire-yellow)); }
.progress-fill--safe { background: var(--gradient-safe); }
.progress-fill--info { background: linear-gradient(90deg, #3182CE, #63B3ED); }

/* ============ FOOTER ============ */
.footer {
  border-top: 1px solid #E2E8F0;
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  color: #64748B;
  font-size: 0.85rem;
  background: linear-gradient(180deg, #FFF0F3, #FFE4E9);
  margin-top: auto;
}

.footer-brand {
  font-weight: 700;
  color: #1E293B;
  margin-bottom: var(--space-sm);
  font-size: 1rem;
}

/* ============ ANIMATIONS ============ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes slideIn {
  from { transform: translateX(-20px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.animate-in {
  animation: fadeInUp 0.5s ease forwards;
  opacity: 0;
}

.animate-in:nth-child(1) { animation-delay: 0.05s; }
.animate-in:nth-child(2) { animation-delay: 0.1s; }
.animate-in:nth-child(3) { animation-delay: 0.15s; }
.animate-in:nth-child(4) { animation-delay: 0.2s; }
.animate-in:nth-child(5) { animation-delay: 0.25s; }
.animate-in:nth-child(6) { animation-delay: 0.3s; }

.pulse { animation: pulse 2s ease-in-out infinite; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1400px) {
  .container {
    max-width: 1400px;
  }
}

@media (max-width: 1024px) {
  .container {
    padding: 0 var(--space-lg);
  }
  .hero-title { font-size: 2.25rem; }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid #E2E8F0;
    padding: var(--space-md);
    box-shadow: var(--shadow-xl);
  }
  .hero-title { font-size: 1.75rem; }
  .hero-subtitle { font-size: 1rem; }
  .page-header .page-title { font-size: 1.75rem; }
  .content-section { padding: var(--space-lg); }
  .flow-diagram { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); }
  .sim-canvas { height: 350px; }
  .sim-controls { flex-wrap: wrap; }
  .sim-info { margin-left: 0; width: 100%; justify-content: space-around; }
}

@media (max-width: 480px) {
  .hero-badges { flex-direction: column; align-items: center; }
  .tabs { gap: 0; }
  .tab-btn { padding: 10px 12px; font-size: 0.8rem; }
}

/* ============ UTILITY CLASSES ============ */
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-safe { color: var(--safe); }
.text-info { color: var(--info); }
.text-accent { color: var(--accent); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 700; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }
.hidden { display: none; }

/* Two column layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; }
}