/* ==========================================================================
   TravelExpertUSA.online - Master Stylesheet
   Theme: White & Light Blue Modern Aviation Aesthetic
   ========================================================================== */

:root {
  /* Base Surfaces */
  --bg-primary: #ffffff;
  --bg-secondary: #f0f7ff;
  --bg-tertiary: #e0f2fe;
  --bg-subtle: #f8fafc;
  
  /* Light Blue & Sky Palette */
  --sky-50: #f0f9ff;
  --sky-100: #e0f2fe;
  --sky-200: #bae6fd;
  --sky-300: #7dd3fc;
  --sky-400: #38bdf8;
  --sky-500: #0ea5e9;
  --sky-600: #0284c7;
  --sky-700: #0369a1;
  --sky-800: #075985;
  --sky-900: #0c4a6e;
  
  /* Text & Contrast Tones */
  --text-dark: #0f172a;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-white: #ffffff;
  
  /* Accent Colors */
  --gold-500: #d97706;
  --gold-400: #f59e0b;
  --gold-bg: #fffbeb;
  --gold-border: #fde68a;
  
  --emerald-500: #059669;
  --emerald-400: #10b981;
  --emerald-bg: #ecfdf5;
  --emerald-border: #a7f3d0;
  
  --rose-500: #e11d48;
  --rose-bg: #fff1f2;
  --rose-border: #fecdd3;
  
  /* Cards & Glass (White & Light Blue) */
  --card-bg: #ffffff;
  --card-bg-hover: #ffffff;
  --card-border: #e0f2fe;
  --card-border-active: #38bdf8;
  
  --glass-bg: rgba(255, 255, 255, 0.94);
  --glass-border: rgba(186, 230, 253, 0.7);
  
  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Radii */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-xs: 0 1px 3px rgba(12, 74, 110, 0.06);
  --shadow-sm: 0 3px 10px rgba(12, 74, 110, 0.07);
  --shadow-md: 0 10px 28px rgba(14, 165, 233, 0.1);
  --shadow-lg: 0 20px 48px rgba(14, 165, 233, 0.14);
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.25);
  
  /* Transitions */
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s ease;
  --transition-slow: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Container */
  --container-max: 1240px;
}

/* Base & Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Ambient Background: Crisp White & Gentle Light Blue */
.bg-ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background: 
    radial-gradient(circle at 10% 15%, rgba(224, 242, 254, 0.85) 0%, transparent 45%),
    radial-gradient(circle at 85% 60%, rgba(186, 230, 253, 0.6) 0%, transparent 40%),
    radial-gradient(circle at 50% 95%, rgba(240, 249, 255, 0.9) 0%, transparent 50%),
    linear-gradient(180deg, #ffffff 0%, #f0f7ff 40%, #ffffff 100%);
}

/* Grid & Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-dark);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
}

a {
  color: var(--sky-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--sky-800);
}

.text-gradient {
  background: linear-gradient(135deg, #0284c7 0%, #0ea5e9 60%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gold {
  color: var(--gold-500);
}

.text-sky {
  color: var(--sky-600);
}

.text-emerald {
  color: var(--emerald-500);
}

.text-rose {
  color: var(--rose-500);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--sky-50);
  color: var(--sky-700);
  border: 1px solid var(--sky-200);
}

.badge-gold {
  background: var(--gold-bg);
  color: var(--gold-500);
  border-color: var(--gold-border);
}

.badge-emerald {
  background: var(--emerald-bg);
  color: var(--emerald-500);
  border-color: var(--emerald-border);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.6rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--sky-600) 0%, var(--sky-500) 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.28);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--sky-700) 0%, var(--sky-600) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(2, 132, 199, 0.38);
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  color: var(--sky-700);
  border: 1.5px solid var(--sky-200);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background: var(--sky-50);
  border-color: var(--sky-500);
  color: var(--sky-800);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-gold {
  background: linear-gradient(135deg, var(--sky-700) 0%, var(--sky-600) 100%);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(3, 105, 161, 0.25);
}

.btn-gold:hover {
  background: linear-gradient(135deg, var(--sky-800) 0%, var(--sky-700) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(3, 105, 161, 0.35);
  color: #ffffff;
}

/* Cards */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--card-border-active);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Navigation Bar (White & Light Blue)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--sky-200);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(12, 74, 110, 0.08);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--sky-900);
  text-decoration: none;
}

.brand-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--sky-600), var(--sky-400));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.brand-domain {
  display: block;
  font-size: 0.675rem;
  font-weight: 600;
  color: var(--sky-600);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.35rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--sky-700);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--sky-500);
  transition: width var(--transition-normal);
  border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Mobile menu toggle button */
.mobile-nav-toggle {
  display: none;
  background: var(--sky-50);
  border: 1px solid var(--sky-200);
  color: var(--sky-800);
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-nav-toggle:hover {
  background: var(--sky-100);
  border-color: var(--sky-400);
}

/* Mobile Drawer Menu - ALWAYS hidden on desktop by default */
.mobile-menu {
  display: none;
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   Hero Section (White & Light Blue)
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 84vh;
  display: flex;
  align-items: center;
  padding: 5rem 0 5.5rem;
  background-image: 
    linear-gradient(180deg, rgba(255, 255, 255, 0.85) 0%, rgba(240, 247, 255, 0.92) 65%, #f0f7ff 100%),
    url('../assets/images/hero-airplane.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: scroll;
}

.hero-content {
  max-width: 820px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.35rem, 5.5vw, 4.15rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
  color: var(--text-dark);
}

.hero-description {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: #334155;
  margin-bottom: 2.5rem;
  max-width: 720px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  padding-top: 2rem;
  border-top: 1px solid var(--sky-200);
}

.hero-stat-item {
  background: #ffffff;
  border: 1px solid var(--sky-200);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--sky-700);
  line-height: 1;
  margin-bottom: 0.35rem;
}

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

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section {
  padding: 5.5rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem;
}

.section-subtitle {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--sky-600);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-size: clamp(2rem, 3.8vw, 3rem);
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.section-desc {
  font-size: 1.075rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Guide Selector & Tabs (Domestic vs. International)
   ========================================================================== */
.guide-tabs-container {
  display: flex;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.tab-nav {
  display: inline-flex;
  background: var(--sky-100);
  border: 1px solid var(--sky-200);
  padding: 0.375rem;
  border-radius: var(--radius-full);
  gap: 0.5rem;
  box-shadow: var(--shadow-xs);
}

.tab-btn {
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--sky-800);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: all var(--transition-normal);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--sky-600), var(--sky-500));
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(2, 132, 199, 0.3);
}

.tab-pane {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Guide Split Layout */
.guide-split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  margin-bottom: 3.5rem;
}

.guide-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--sky-200);
}

.guide-visual img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.guide-visual:hover img {
  transform: scale(1.03);
}

.visual-overlay-card {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--sky-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 8px 20px rgba(12, 74, 110, 0.12);
}

.guide-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.guide-feature-card {
  background: #ffffff;
  border: 1px solid var(--sky-200);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-normal);
}

.guide-feature-card:hover {
  border-color: var(--sky-400);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.feature-icon-wrapper {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-sm);
  background: var(--sky-50);
  color: var(--sky-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--sky-200);
}

.guide-feature-card h4 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
  color: var(--text-dark);
}

/* Route Badges */
.route-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.route-tag {
  background: var(--sky-50);
  border: 1px solid var(--sky-200);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-xs);
  font-size: 0.825rem;
  color: var(--sky-800);
  font-weight: 600;
}

/* ==========================================================================
   Interactive Smart Fare & Booking Advisor Tool
   ========================================================================== */
.advisor-card {
  background: linear-gradient(145deg, #ffffff 0%, #f0f7ff 100%);
  border: 1.5px solid var(--sky-200);
  border-radius: var(--radius-xl);
  padding: 2.75rem;
  box-shadow: var(--shadow-md);
}

.advisor-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.form-select, .form-input {
  background: #ffffff;
  border: 1.5px solid var(--sky-200);
  color: var(--text-dark);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
  width: 100%;
}

.form-select:focus, .form-input:focus {
  border-color: var(--sky-500);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.18);
}

.advisor-result-box {
  background: #ffffff;
  border: 1px solid var(--sky-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  box-shadow: var(--shadow-sm);
  animation: fadeIn 0.3s ease;
}

.advisor-key-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.metric-card {
  background: var(--sky-50);
  border: 1px solid var(--sky-200);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.metric-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--sky-800);
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.metric-data {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--sky-600);
}

.metric-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.2rem;
}

.advisor-recommendations {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.rec-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1rem;
}

.rec-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.rec-item svg {
  flex-shrink: 0;
  margin-top: 0.2rem;
  color: var(--emerald-500);
}

/* ==========================================================================
   The 6-Step Flight Booking Blueprint
   ========================================================================== */
.blueprint-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.75rem;
}

.step-card {
  background: #ffffff;
  border: 1px solid var(--sky-200);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  position: relative;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-normal);
}

.step-card:hover {
  border-color: var(--sky-400);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.step-number {
  position: absolute;
  top: 1.75rem;
  right: 1.75rem;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--sky-100);
  line-height: 1;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.step-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: var(--sky-50);
  color: var(--sky-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  border: 1px solid var(--sky-200);
}

.step-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-dark);
}

.step-card p {
  font-size: 0.925rem;
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.step-tips-box {
  background: var(--sky-50);
  border-left: 3.5px solid var(--sky-500);
  padding: 0.85rem 1rem;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  font-size: 0.85rem;
  color: var(--sky-900);
}

/* ==========================================================================
   Airlines Comparison Matrix Table (White & Light Blue)
   ========================================================================== */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--sky-200);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.925rem;
}

.comparison-table th {
  background: var(--sky-100);
  padding: 1.2rem 1.25rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--sky-900);
  border-bottom: 1px solid var(--sky-200);
}

.comparison-table td {
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid var(--sky-100);
  color: var(--text-primary);
  vertical-align: middle;
}

.comparison-table tr:hover td {
  background: var(--sky-50);
}

.carrier-cell {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  color: var(--text-dark);
}

.carrier-tag {
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-xs);
  background: var(--sky-100);
  color: var(--sky-800);
}

/* ==========================================================================
   DOT Consumer Rights & REAL ID Cards
   ========================================================================== */
.rights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
}

.rights-card {
  background: #ffffff;
  border: 1px solid var(--sky-200);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  border-top: 4px solid var(--sky-500);
  box-shadow: var(--shadow-xs);
}

.rights-card.gold-top {
  border-top-color: var(--sky-600);
}

.rights-card.emerald-top {
  border-top-color: var(--emerald-500);
}

.rights-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.85rem;
  color: var(--text-dark);
}

.rights-card p {
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ==========================================================================
   Frequently Asked Questions (Native Accordion)
   ========================================================================== */
.faq-accordion-group {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

details.faq-item {
  background: #ffffff;
  border: 1px solid var(--sky-200);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-normal);
}

details.faq-item[open] {
  border-color: var(--sky-400);
  background: var(--sky-50);
  box-shadow: var(--shadow-sm);
}

summary.faq-question {
  list-style: none;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

summary.faq-question::-webkit-details-marker {
  display: none;
}

summary.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  line-height: 1;
  color: var(--sky-600);
  transition: transform var(--transition-fast);
  font-weight: 400;
}

details[open] summary.faq-question::after {
  content: '−';
  transform: rotate(180deg);
  color: var(--sky-700);
}

.faq-answer {
  padding-top: 1rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--sky-200);
  margin-top: 0.85rem;
}

/* ==========================================================================
   CTA Banner (White & Light Blue)
   ========================================================================== */
.cta-banner {
  background: linear-gradient(135deg, var(--sky-100) 0%, #ffffff 50%, var(--sky-50) 100%);
  border: 1.5px solid var(--sky-300);
  border-radius: var(--radius-xl);
  padding: 3.5rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.cta-banner h2 {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.cta-banner p {
  font-size: 1.1rem;
  max-width: 650px;
  margin: 0 auto 2rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Footer (White & Light Blue)
   ========================================================================== */
.site-footer {
  background: var(--sky-50);
  border-top: 1px solid var(--sky-200);
  padding: 5rem 0 2.5rem;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col-brand p {
  margin-top: 1rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 320px;
}

.footer-heading {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--sky-900);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a,
.footer-links button {
  font-size: 0.9rem;
  color: var(--text-secondary);
  background: none;
  border: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-links button:hover {
  color: var(--sky-600);
}

.footer-badge-box {
  background: #ffffff;
  border: 1px solid var(--sky-200);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  box-shadow: var(--shadow-xs);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--sky-200);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

.footer-legal-links button,
.footer-legal-links a {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: inherit;
  padding: 0;
}

.footer-legal-links button:hover,
.footer-legal-links a:hover {
  color: var(--sky-600);
  text-decoration: underline;
}

/* ==========================================================================
   Modals (<dialog>) for Privacy Policy and Terms of Service (White Theme)
   ========================================================================== */
dialog.legal-modal {
  margin: auto;
  max-width: 820px;
  width: 90%;
  max-height: 85vh;
  border-radius: var(--radius-lg);
  background: #ffffff;
  border: 1.5px solid var(--sky-300);
  color: var(--text-primary);
  box-shadow: 0 25px 50px -12px rgba(12, 74, 110, 0.25), var(--shadow-glow);
  padding: 0;
  overflow: hidden;
}

dialog.legal-modal::backdrop {
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.modal-header {
  padding: 1.5rem 2rem;
  background: var(--sky-50);
  border-bottom: 1px solid var(--sky-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.modal-header h2 {
  font-size: 1.4rem;
  margin: 0;
  color: var(--text-dark);
}

.modal-close-btn {
  background: #ffffff;
  border: 1px solid var(--sky-200);
  color: var(--text-secondary);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--rose-500);
  border-color: var(--rose-500);
  color: #ffffff;
}

.modal-body {
  padding: 2rem;
  overflow-y: auto;
  max-height: calc(85vh - 130px);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.modal-body h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--text-dark);
}

.modal-body p {
  margin-bottom: 1rem;
}

.modal-body ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.modal-body li {
  margin-bottom: 0.5rem;
}

.modal-footer {
  padding: 1rem 2rem;
  background: var(--sky-50);
  border-top: 1px solid var(--sky-200);
  display: flex;
  justify-content: flex-end;
}

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */
@media (max-width: 1024px) {
  .guide-split-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .advisor-result-box {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 992px) {
  .nav-links, 
  .nav-actions .btn {
    display: none !important;
  }
  
  .mobile-nav-toggle {
    display: flex;
  }
  
  .mobile-menu {
    display: none;
    flex-direction: column;
    position: fixed;
    top: 4.5rem;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1.5px solid var(--sky-200);
    padding: 1.5rem;
    gap: 0.85rem;
    box-shadow: 0 16px 36px rgba(12, 74, 110, 0.14);
    z-index: 99;
  }
  
  .mobile-menu:not(.hidden) {
    display: flex;
  }
  
  .mobile-menu.hidden {
    display: none !important;
  }

  .mobile-menu .nav-link {
    font-size: 1.05rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--sky-100);
    color: var(--sky-900);
  }

  .mobile-menu .btn {
    width: 100%;
    margin-top: 0.5rem;
  }
}

@media (max-width: 768px) {
  .hero-section {
    padding: 4rem 0 4rem;
    min-height: auto;
  }
  
  .section {
    padding: 4rem 0;
  }
  
  .advisor-card {
    padding: 1.75rem;
  }
  
  .advisor-key-metrics {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
}