/* ==============================================================================
   Cestani Design System - Governance & Decision Platform
   Predominantly Dark Theme Palette: Deep Navy, Gold, Teal, Purple
   ============================================================================== */

:root {
  /* Brand Palette from cestani-logo.svg */
  --color-navy: #00244B;
  --color-navy-dark: #020B17;
  --color-navy-surface: #061933;
  --color-navy-card: #0A2244;
  --color-navy-card-hover: #0E2E5C;
  --color-navy-light: #143E7A;
  
  --color-gold: #E6A52F;
  --color-gold-hover: #F3B544;
  --color-gold-glow: rgba(230, 165, 47, 0.25);
  
  --color-teal: #1F8266;
  --color-teal-bright: #26A683;
  --color-teal-glow: rgba(31, 130, 102, 0.25);
  
  --color-purple: #3D1D80;
  --color-purple-bright: #5D31BD;
  
  /* Dark Theme Surfaces and Text */
  --color-bg: #020B17;
  --color-surface-header: rgba(4, 17, 36, 0.94);
  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-hover: rgba(255, 255, 255, 0.22);
  --color-border-active: var(--color-gold);
  
  --color-text-main: #FFFFFF;
  --color-text-body: #CBD5E1;
  --color-text-muted: #94A3B8;
  --color-text-subtle: #64748B;
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.08);
  --shadow-card-hover: 0 20px 40px -10px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(230, 165, 47, 0.4);
  --shadow-lg: 0 15px 35px -5px rgba(0, 0, 0, 0.6);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
  background-image: 
    radial-gradient(circle at 50% -10%, rgba(20, 62, 122, 0.4) 0%, transparent 65%),
    radial-gradient(circle at 100% 40%, rgba(61, 29, 128, 0.22) 0%, transparent 55%),
    radial-gradient(circle at 0% 80%, rgba(31, 130, 102, 0.18) 0%, transparent 55%);
  background-attachment: fixed;
}

/* Staging Banner (for dev environments) */
.dev-staging-banner {
  background: #041021;
  color: #F8FAFC;
  padding: 8px 24px;
  font-size: 0.8125rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(230, 165, 47, 0.4);
  z-index: 1000;
}

.dev-staging-banner .badge {
  background-color: var(--color-gold);
  color: #020B17;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.75rem;
  margin-right: 8px;
  letter-spacing: 0.03em;
}

.dev-staging-banner .meta-link {
  color: var(--color-gold);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.dev-staging-banner .meta-link:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

/* Header & Navigation */
.site-header {
  background-color: var(--color-surface-header);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  width: 38px;
  height: 38px;
  display: block;
}

.brand-name {
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #FFFFFF;
}

.brand-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: rgba(230, 165, 47, 0.15);
  color: var(--color-gold);
  border: 1px solid rgba(230, 165, 47, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 6px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: #FFFFFF;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
  min-height: 44px;
}

.btn-primary {
  background-color: var(--color-gold);
  color: #020B17;
  font-weight: 700;
}

.btn-primary:hover {
  background-color: var(--color-gold-hover);
  box-shadow: 0 4px 16px var(--color-gold-glow);
  transform: translateY(-1px);
}

.btn-accent {
  background-color: var(--color-gold);
  color: #020B17;
  font-weight: 700;
}

.btn-accent:hover {
  background-color: var(--color-gold-hover);
  box-shadow: 0 4px 20px var(--color-gold-glow);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
}

.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #FFFFFF;
  transform: translateY(-1px);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.0625rem;
}

/* Main Content */
main {
  flex: 1;
}

/* Hero Section */
.hero-section {
  padding: 84px 24px 72px;
  text-align: center;
  position: relative;
}

.hero-container {
  max-width: 900px;
  margin: 0 auto;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-body);
  margin-bottom: 28px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-teal-bright);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-teal-bright);
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #FFFFFF;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.65;
  color: var(--color-text-body);
  margin-bottom: 40px;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* Quick Access Token Card */
.token-lookup-bar {
  background-color: var(--color-navy-surface);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 18px;
  max-width: 640px;
  margin: 0 auto;
  box-shadow: var(--shadow-card);
}

.token-form {
  display: flex;
  gap: 12px;
}

.token-input {
  flex: 1;
  padding: 13px 18px;
  font-size: 0.9375rem;
  font-family: var(--font-mono);
  background-color: #020B17;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--transition-fast);
}

.token-input::placeholder {
  color: var(--color-text-subtle);
}

.token-input:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px var(--color-gold-glow);
}

.token-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 10px;
  text-align: left;
}

/* Section Header Shared */
.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Value Pillars Grid */
.pillars-section {
  padding: 88px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.pillar-card {
  background-color: var(--color-navy-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.pillar-card:hover {
  background-color: var(--color-navy-card-hover);
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.pillar-icon-box {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.pillar-icon-box.gold {
  background-color: rgba(230, 165, 47, 0.15);
  color: var(--color-gold);
}

.pillar-icon-box.teal {
  background-color: rgba(31, 130, 102, 0.2);
  color: var(--color-teal-bright);
}

.pillar-icon-box.navy {
  background-color: rgba(20, 62, 122, 0.35);
  color: #60A5FA;
}

.pillar-icon-box.purple {
  background-color: rgba(61, 29, 128, 0.25);
  color: #A78BFA;
}

.pillar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.pillar-text {
  font-size: 0.9375rem;
  color: var(--color-text-body);
  line-height: 1.65;
}

/* ==============================================================================
   Use Cases Grid Section
   ============================================================================== */
.usecases-section {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.usecases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.usecase-chip {
  background-color: var(--color-navy-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

.usecase-chip:hover {
  background-color: var(--color-navy-card-hover);
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}

.usecase-chip strong {
  color: #FFFFFF;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.usecase-chip span {
  color: var(--color-text-body);
  font-size: 0.9375rem;
  line-height: 1.55;
}

/* ==============================================================================
   Comparison Section (Why Cestani beats Qualtrics & SurveyMonkey)
   ============================================================================== */
.compare-section {
  background-color: var(--color-navy-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 92px 24px;
}

.compare-container {
  max-width: 1100px;
  margin: 0 auto;
}

.compare-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  background-color: var(--color-navy-card);
  margin: 36px 0 16px;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  text-align: left;
}

.compare-table th,
.compare-table td {
  padding: 18px 24px;
  vertical-align: top;
  font-size: 0.9375rem;
  line-height: 1.6;
  border-bottom: 1px solid var(--color-border);
}

.compare-table thead th {
  color: #FFFFFF;
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: #04142B;
}

.compare-table tbody th {
  color: #FFFFFF;
  font-weight: 700;
  width: 22%;
  background-color: transparent;
}

.compare-table td {
  color: var(--color-text-body);
}

/* Cestani Highlight Column */
.compare-table .col-cestani {
  background-color: rgba(31, 130, 102, 0.12);
  color: #FFFFFF;
  border-left: 1px solid rgba(31, 130, 102, 0.35);
  border-right: 1px solid rgba(31, 130, 102, 0.35);
  font-weight: 500;
}

.compare-table thead th.col-cestani {
  color: var(--color-teal-bright);
  background-color: rgba(31, 130, 102, 0.25);
  font-weight: 800;
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.compare-note {
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  margin-top: 16px;
  text-align: center;
  font-style: italic;
}

/* Security & Sovereignty Section */
.security-section {
  background-color: var(--color-navy-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 68px 24px;
}

.security-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.security-icon-large {
  width: 68px;
  height: 68px;
  border-radius: var(--radius-lg);
  background-color: rgba(230, 165, 47, 0.12);
  color: var(--color-gold);
  border: 1px solid rgba(230, 165, 47, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.security-content {
  flex: 1;
  min-width: 280px;
}

.security-title {
  font-size: 1.4375rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.security-text {
  font-size: 0.9375rem;
  color: var(--color-text-body);
  line-height: 1.65;
}

/* Global Footer */
.site-footer {
  background-color: #020B17;
  border-top: 1px solid var(--color-border);
  padding: 48px 24px;
  margin-top: auto;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

.footer-link {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-gold);
  text-decoration: underline;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.375rem;
  }
  .hero-subtitle {
    font-size: 1.125rem;
  }
  .token-form {
    flex-direction: column;
  }
  .nav-links {
    display: none;
  }
  .compare-table th, .compare-table td {
    padding: 12px 14px;
    font-size: 0.875rem;
  }
}