/* ==========================================================================
   DESIGN TOKENS & SYSTEM VARIABLES (Modern Tropical Luxury Theme)
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Pure Black & White Minimalist Palette (Monochrome Aesthetic) */
  --emerald: #111827;        /* Deep Crisp Black Accent */
  --emerald-dark: #000000;   /* Pure Black */
  --emerald-light: #374151;  /* Dark Slate */
  --emerald-tint: #F3F4F6;   /* Crisp Light Off-White */
  
  --gold: #111827;           /* High-Contrast Black Accent */
  --gold-dark: #000000;
  --gold-light: #F9FAFB;
  
  --coral: #111827;          /* Pure Black Accent */
  
  --sand-bg: #FAFAFA;        /* Crisp Pure Light Canvas */
  --card-bg: #FFFFFF;        /* Pure White Cards */
  --card-border: #E5E7EB;    /* Subtle Crisp Border */
  
  --text-main: #111827;      /* Deep Crisp Black */
  --text-muted: #4B5563;     /* Muted Slate Gray */
  --text-light: #9CA3AF;
  
  /* Fonts */
  --font-display: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Metrics & Minimalist Corners */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-pill: 100px;
  
  --max-width: 1280px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Apple/Airbnb Soft Shadows */
  --shadow-subtle: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.1);
  
  --glass-bg: rgba(255, 255, 255, 0.95);
  --glass-border: 1px solid #E5E7EB;
  --glass-blur: blur(12px);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--sand-bg);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* OKLCH Color Space Fallback Detection */
:root {
  --in-oklab: ;
  --in-oklch: ;
}
@supports (linear-gradient(in oklab, white, black)) {
  :root {
    --in-oklab: in oklab;
    --in-oklch: in oklch;
  }
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.25;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

img {
  max-width: 100%;
  display: block;
}

/* ==========================================================================
   LAYOUT STRUCTURE
   ========================================================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 64px 0;
}

/* ==========================================================================
   MODERN TROPICAL LUXURY HERO & CARDS
   ========================================================================== */
/* ==========================================================================
   GETYOURGUIDE & BOOKING.COM STYLE COMPONENTS
   ========================================================================== */
.gyg-search-bar {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 12px;
  box-shadow: 0 16px 40px rgba(10, 77, 60, 0.15);
  border: 1px solid var(--card-border);
  display: grid;
  grid-template-columns: 1.2fr 1.2fr 1fr auto;
  gap: 12px;
  align-items: center;
}

@media (max-width: 900px) {
  .gyg-search-bar {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 16px;
  }
}

.gyg-search-field {
  display: flex;
  flex-direction: column;
  padding: 8px 14px;
  background: var(--sand-bg);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition);
}

.gyg-search-field:focus-within {
  border-color: var(--emerald);
  background: #FFFFFF;
}

.gyg-search-field label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.gyg-search-field select,
.gyg-search-field input {
  border: none;
  background: transparent;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
  outline: none;
  cursor: pointer;
}

.gyg-btn-search {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  color: #FFFFFF;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(229, 169, 60, 0.35);
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.gyg-btn-search:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(229, 169, 60, 0.45);
}

/* Category Filter Bar */
.gyg-category-bar {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 28px;
  scrollbar-width: none;
}
.gyg-category-bar::-webkit-scrollbar { display: none; }

.gyg-cat-pill {
  white-space: nowrap;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  background: #FFFFFF;
  border: 1.5px solid var(--card-border);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.gyg-cat-pill:hover,
.gyg-cat-pill.active {
  background: var(--emerald);
  color: #FFFFFF;
  border-color: var(--emerald);
  box-shadow: 0 4px 14px rgba(10, 77, 60, 0.2);
}

/* GetYourGuide Service Card Grid */
.gyg-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 900px) {
  .gyg-card-grid {
    grid-template-columns: 1fr;
  }
}

.gyg-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

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

.gyg-card-img-wrap {
  position: relative;
  width: 100%;
  height: 190px;
  overflow: hidden;
  background: var(--emerald-dark);
}

.gyg-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gyg-card:hover .gyg-card-img {
  transform: scale(1.08);
}

.gyg-card-badge-top {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(10, 77, 60, 0.9);
  backdrop-filter: blur(8px);
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(229, 169, 60, 0.4);
}

.gyg-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: space-between;
}

.gyg-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.gyg-rating .stars {
  color: var(--gold);
}

.gyg-card-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.3;
}

.gyg-card-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.gyg-card-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}

.gyg-feature-tag {
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--emerald-tint);
  color: var(--emerald);
  padding: 3px 8px;
  border-radius: 4px;
}

.gyg-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px dashed var(--card-border);
  padding-top: 14px;
}

.gyg-price {
  display: flex;
  flex-direction: column;
}

.gyg-price .label {
  font-size: 0.7rem;
  color: var(--text-light);
  font-weight: 600;
  text-transform: uppercase;
}

.gyg-price .amount {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--emerald);
}

.vth-glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}

.vth-glass-card:hover {
  box-shadow: var(--shadow-hover);
}

.vth-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(229, 169, 60, 0.22);
  color: var(--gold);
  border: 1px solid rgba(229, 169, 60, 0.45);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.divider {
  border: none;
  border-top: 1px solid var(--stone);
  margin: 0 auto;
}

/* Section Typography */
.section-header {
  margin-bottom: 48px;
  text-align: center;
}

.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 400;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.section-title em {
  font-style: italic;
  color: var(--accent);
}

.section-sub {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.65;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--stone-light);
  height: 64px;
  transition: background var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-brand span {
  font-size: 0.8rem;
  font-family: var(--font-body);
  background: var(--accent-light);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

.nav-links .btn-nav {
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
}

.nav-links .btn-nav:hover {
  background: var(--accent);
  color: var(--bg-primary);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-nav-toggle svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-primary);
}

/* ==========================================================================
   BUTTONS (SOLID NON-DISAPPEARING HIGH CONTRAST)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 700;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: var(--emerald) !important;
  color: #FFFFFF !important;
  border: 1px solid var(--emerald-dark) !important;
  box-shadow: 0 4px 14px rgba(10, 77, 60, 0.2);
}

.btn-primary:hover {
  background: var(--emerald-dark) !important;
  color: #FFFFFF !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(10, 77, 60, 0.3);
}

.btn-accent {
  background: var(--gold) !important;
  color: #0F172A !important;
  border: 1px solid var(--gold-dark) !important;
  box-shadow: 0 4px 14px rgba(229, 169, 60, 0.3);
}

.btn-accent:hover {
  background: #D4982B !important;
  color: #0F172A !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(229, 169, 60, 0.4);
}

.btn-secondary {
  background: #FFFFFF !important;
  color: var(--emerald-dark) !important;
  border: 1.5px solid var(--emerald-light) !important;
}

.btn-secondary:hover {
  background: var(--sand-bg) !important;
  color: var(--emerald) !important;
  border-color: var(--emerald) !important;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ==========================================================================
   FORMS & INPUTS
   ========================================================================== */
.form-card {
  background: var(--bg-primary);
  border: 1px solid var(--stone-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.form-grid {
  display: grid;
  gap: 20px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.form-group input, 
.form-group select, 
.form-group textarea {
  width: 100%;
  max-width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--stone);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-group input::placeholder, 
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235A5852' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

/* Radio Option Pills */
.radio-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.radio-pill input[type="radio"] {
  display: none;
}

.radio-pill label {
  display: inline-block;
  padding: 8px 16px;
  border: 1.5px solid var(--stone);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-secondary);
  background: var(--bg-primary);
  transition: all var(--transition);
}

.radio-pill input[type="radio"]:checked + label {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--bg-primary);
}

.form-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Messages */
.msg-success {
  display: none;
  background: var(--success-light);
  border: 1px solid var(--success-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 0.88rem;
  color: var(--success);
  margin-top: 16px;
  align-items: center;
  gap: 10px;
}

.msg-success.show {
  display: flex;
}

.msg-error {
  display: none;
  background: var(--error-light);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-size: 0.84rem;
  color: var(--error);
  margin-top: 16px;
}

.msg-error.show {
  display: block;
}

/* ==========================================================================
   CARDS & SHOWCASES
   ========================================================================== */
/* Service Overview Grid (Homepage) */
.services-overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.service-overview-card {
  background: var(--bg-primary);
  border: 1px solid var(--stone-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-overview-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.service-overview-icon {
  font-size: 2.25rem;
  margin-bottom: 20px;
  line-height: 1;
}

.service-overview-card h3 {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.service-overview-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 24px;
  flex-grow: 1;
}

.service-overview-card .card-link {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.service-overview-card .card-link::after {
  content: '→';
  transition: transform var(--transition);
}

.service-overview-card:hover .card-link::after {
  transform: translateX(4px);
}

/* Guides Cards Grid */
.guides-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.guide-card {
  background: var(--bg-primary);
  border: 1px solid var(--stone-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition);
}

.guide-card:hover {
  border-color: var(--stone);
}

.guide-card-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.guide-emoji {
  font-size: 2.5rem;
  line-height: 1;
}

.guide-card h3 {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

.guide-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.guide-includes {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 24px;
}

.guide-includes span {
  font-size: 0.82rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.guide-includes span::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
}

/* Blog List Cards */
.blog-list {
  display: flex;
  flex-direction: column;
}

.blog-card {
  display: grid;
  grid-template-columns: 1fr 180px;
  gap: 40px;
  padding: 32px 0;
  border-bottom: 1px solid var(--stone-light);
}

.blog-card:last-child {
  border-bottom: none;
}

.blog-card-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.blog-card-tag {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: 0.08em;
}

.blog-card h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.blog-card:hover h3 {
  color: var(--accent);
}

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

.blog-card-thumb-wrap {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 1.5;
  background: var(--stone-light);
}

.blog-card-thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.blog-card:hover .blog-card-thumb-wrap img {
  transform: scale(1.05);
}

.blog-card-video-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(26, 25, 22, 0.8);
  color: #FFFFFF;
  font-size: 0.65rem;
  padding: 3px 6px;
  border-radius: 4px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   HERO PORTAL (HOMEPAGE)
   ========================================================================== */
.hero {
  padding: 96px 0 64px;
  display: grid;
  grid-template-areas: 
    "content bundle"
    "footer  bundle";
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px 48px;
  align-items: start;
}
.hero-content {
  grid-area: content;
}
.hero-bundle-container {
  grid-area: bundle;
}
.hero-footer-elements {
  grid-area: footer;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
  border: 1px solid var(--accent-border);
}

.hero-bundle-card {
  border: 2px solid var(--accent) !important;
  background: var(--bg-primary) !important;
  padding: 32px 24px !important;
  box-shadow: var(--shadow-md) !important;
  position: relative;
  border-radius: var(--radius-lg) !important;
  text-align: left;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
}

.social-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--stone);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.social-btn:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
  background: var(--bg-primary);
}

.social-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.hero-avatar {
  position: relative;
  width: 320px;
  height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 4px solid var(--bg-primary);
}

.hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==========================================================================
   SERVICE DESCRIPTION HEROES (TABS/PAGES)
   ========================================================================== */
.service-hero {
  padding: 80px 0 48px;
  text-align: center;
}

.service-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}

.info-panel {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.info-section h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.info-section p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.feature-item .icon {
  font-size: 1.2rem;
  line-height: 1.2;
}

.feature-item strong {
  color: var(--text-primary);
}

/* ==========================================================================
   ADMIN PANEL STYLES
   ========================================================================== */
.admin-body {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--stone);
}

.admin-header h1 {
  font-size: 1.8rem;
}

.admin-header h1 span {
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 1rem;
  margin-left: 8px;
}

/* Admin Tabs */
.admin-tabs {
  display: flex;
  gap: 8px;
  background: var(--stone-light);
  padding: 6px;
  border-radius: var(--radius-md);
  width: fit-content;
  margin-bottom: 32px;
}

.admin-tab {
  border: none;
  background: transparent;
  padding: 8px 20px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.admin-tab.active {
  background: var(--bg-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* Stats Cards */
.admin-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.admin-stat-card {
  background: var(--bg-primary);
  border: 1px solid var(--stone-light);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.admin-stat-num {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.admin-stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Admin Table */
.admin-table-wrap {
  background: var(--bg-primary);
  border: 1px solid var(--stone-light);
  border-radius: var(--radius-md);
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.admin-table th {
  background: var(--bg-secondary);
  padding: 14px 18px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1.5px solid var(--stone);
}

.admin-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--stone-light);
  vertical-align: top;
}

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

.admin-table tr:hover td {
  background: var(--bg-secondary);
}

.admin-table .email-link {
  color: var(--accent);
  font-weight: 500;
}

.admin-table .tag-pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--stone-light);
  color: var(--text-secondary);
}

.admin-table .tag-pill.planning {
  background: var(--success-light);
  color: var(--success);
}

.admin-table .booking-details-box {
  max-width: 320px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.admin-table .booking-details-box strong {
  color: var(--text-primary);
}

/* Custom Admin Badges */
.admin-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
}
.badge-transport {
  background: rgba(26, 115, 232, 0.1);
  color: #1A73E8;
}
.badge-esim {
  background: rgba(126, 34, 206, 0.1);
  color: #7E22CE;
}
.badge-fastrack {
  background: rgba(217, 119, 6, 0.1);
  color: #D97706;
}
.badge-bundle {
  background: rgba(197, 160, 89, 0.15);
  color: #a38243;
  border: 1px solid rgba(197, 160, 89, 0.3);
}
.badge-tour {
  background: rgba(19, 115, 51, 0.1);
  color: #137333;
}
.badge-general {
  background: var(--stone-light);
  color: var(--text-secondary);
}

/* Details Expansion Overlay */
.admin-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(28, 51, 34, 0.4);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1100;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.admin-modal-backdrop.show {
  display: flex;
  opacity: 1;
}
.admin-modal-card {
  background: var(--bg-primary);
  border: 1px solid var(--stone-light);
  border-top: 4px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 600px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  position: relative;
  transform: scale(0.95);
  transition: transform 0.25s ease;
}
.admin-modal-backdrop.show .admin-modal-card {
  transform: scale(1);
}
.admin-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}
.admin-modal-close:hover {
  color: var(--text-primary);
}

/* Prices Input Grouping Cards */
.price-group-card {
  background: var(--bg-primary);
  border: 1px solid var(--stone-light);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.price-group-header {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--stone-light);
  padding-bottom: 8px;
  margin: 0;
}
.input-currency-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.input-currency-prefix {
  position: absolute;
  left: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
}
.input-currency-wrapper input {
  padding-left: 24px;
}

/* Admin Status Select Dropdowns */
.admin-status-select {
  border: 1.5px solid var(--stone);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 24px 5px 8px;
  cursor: pointer;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: all var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%237E8F82' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 10px;
}
.admin-status-select:focus {
  box-shadow: 0 0 0 2px rgba(197, 160, 89, 0.2);
}
.status-new {
  border-color: #1A73E8;
  color: #1A73E8;
  background-color: rgba(26, 115, 232, 0.05);
}
.status-replied {
  border-color: #D97706;
  color: #D97706;
  background-color: rgba(217, 119, 6, 0.05);
}
.status-paid {
  border-color: #137333;
  color: #137333;
  background-color: rgba(19, 115, 81, 0.05);
}
.status-cancelled {
  border-color: var(--error);
  color: var(--error);
  background-color: rgba(220, 53, 69, 0.05);
}

/* ==========================================================================
   ADMIN PORTAL TWO-COLUMN LAYOUT (LIGHT & MODERN)
   ========================================================================== */
#admin-screen {
  --bg-primary: #FFFFFF;
  --bg-secondary: #F9FAFB;
  --bg-tertiary: #F3F4F6;
  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --stone: #E5E7EB;
  --stone-light: #F3F4F6;
  background: #F9FAFB;
  color: #111827;
}

/* Hide tab panels by default and only display active one */
.tab-panel {
  display: none !important;
}
.tab-panel.active {
  display: block !important;
}

.admin-sidebar {
  display: none;
}
.admin-mobile-header {
  background: #FFFFFF;
  border-bottom: 1px solid #E5E7EB;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.admin-mobile-nav {
  background: #FFFFFF;
  border-bottom: 1px solid #E5E7EB;
  display: flex;
  gap: 4px;
  padding: 8px;
  overflow-x: auto;
  position: sticky;
  top: 64px;
  z-index: 99;
  scrollbar-width: none;
}
.admin-mobile-nav::-webkit-scrollbar {
  display: none;
}
.admin-tab-mob {
  flex-shrink: 0;
  border: 1px solid #E5E7EB;
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-family: var(--font-body);
  font-weight: 600;
  color: #4B5563;
  background: #FFFFFF;
  cursor: pointer;
  transition: all var(--transition);
}
.admin-tab-mob:hover {
  background: #F3F4F6;
  color: #111827;
}
.admin-tab-mob.active {
  background: #FAF9F6;
  color: var(--accent);
  border-color: var(--accent);
}
.admin-content-area {
  padding: 24px 16px;
  max-width: 1200px;
  margin: 0 auto;
}

@media (min-width: 992px) {
  #admin-screen {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
    background: #F9FAFB;
  }
  .admin-sidebar {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #FFFFFF;
    border-right: 1px solid #E5E7EB;
    padding: 32px 24px;
    height: 100vh;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 2px 0 10px rgba(0,0,0,0.02);
  }
  .admin-brand-header {
    border-bottom: 1px solid #E5E7EB;
    padding-bottom: 20px;
  }
  .admin-sidebar .admin-tabs {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 32px;
    background: transparent;
    padding: 0;
    border: none;
  }
  .admin-sidebar .admin-tab {
    width: 100%;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: #4B5563;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: var(--font-body);
    transition: all 0.2s ease;
  }
  .admin-sidebar .admin-tab:hover {
    color: #111827;
    background: #F3F4F6;
  }
  .admin-sidebar .admin-tab.active {
    color: var(--accent);
    background: #FAF9F6;
    border: 1px solid rgba(197, 160, 89, 0.15);
    font-weight: 600;
    box-shadow: none;
  }
  .admin-mobile-header, .admin-mobile-nav {
    display: none;
  }
  .admin-content-area {
    padding: 40px;
    margin: 0;
    height: 100vh;
    overflow-y: auto;
    background: #F9FAFB;
  }
}

/* Premium Card Overhauls */
.admin-article-card {
  background: #FFFFFF;
  border: 1px solid #E5E7EB;
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition);
  position: relative;
}
.admin-article-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.card-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
}
.card-badge.published {
  background: rgba(19, 115, 81, 0.08);
  color: #137333;
}
.card-badge.draft {
  background: #F3F4F6;
  color: #4B5563;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--stone-light);
  padding: 40px 0;
  text-align: center;
  margin-top: 80px;
}

footer p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

footer a {
  color: var(--text-secondary);
  font-weight: 500;
}

footer a:hover {
  color: var(--accent);
}

/* ==========================================================================
   LOADING & ANIMATION SKELETONS
   ========================================================================== */
.skeleton {
  background: linear-gradient(90deg, var(--stone-light) 25%, var(--bg-tertiary) 50%, var(--stone-light) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-card {
  height: 100px;
  margin-bottom: 16px;
  border-radius: var(--radius-md);
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */
.mobile-only-link {
  display: none;
}
.desktop-only-link {
  display: block;
}

.hero-badge-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-tertiary);
  padding: 10px 20px;
  border-radius: 100px;
  width: fit-content;
  border: 1px solid var(--stone-light);
}

@media (max-width: 900px) {
  .hero {
    display: flex;
    flex-direction: column;
    gap: 32px;
    text-align: center;
    padding: 48px 0;
  }
  
  .hero-bundle-container {
    display: block !important;
    width: 100%;
    max-width: 440px;
    margin: 0 auto;
  }
  
  .hero-bundle-card {
    padding: 24px 16px !important;
  }
  
  .hero-footer-elements {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  
  .hero-badge-wrap {
    margin: 0 auto;
  }
  
  .hero p {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .social-row {
    justify-content: center;
  }
  
  .services-overview-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .service-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 700px) {
  .services-overview-grid {
    grid-template-columns: 1fr;
  }
  
  .guides-grid {
    grid-template-columns: 1fr;
  }
  
  .blog-card {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .blog-card-thumb-wrap {
    order: -1;
    max-width: 320px;
  }
  
  .form-row-2 {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .form-row-2 .form-group:first-child {
    margin-bottom: 20px;
  }

  .form-row-3 {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .form-row-3 .form-group:not(:last-child) {
    margin-bottom: 20px;
  }
  
  .form-card {
    padding: 24px;
  }
  
  .admin-stats {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

/* Tactile active button responses */
.btn:active, 
.btn-sm:active, 
.social-btn:active,
.radio-pill label:active {
  transform: scale(0.96);
}

/* Fluid animations for Wizard panels */
@keyframes wizardPanelSlideUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.wizard-panel.active {
  animation: wizardPanelSlideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Enhanced responsive rules for mobile header drawer */
@media (max-width: 600px) {
  .container {
    padding: 0 16px !important;
  }
  .form-card {
    padding: 20px 16px !important;
  }

  nav {
    position: sticky;
    top: 0;
  }
  
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    padding: 36px 24px;
    gap: 20px;
    align-items: center;
    transform: translateY(-120%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
    opacity: 0;
    pointer-events: none;
    z-index: 99;
    border-bottom: 1px solid var(--stone-light);
    box-shadow: var(--shadow-md);
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  /* Floating WhatsApp Direct Concierge Widget */
.vth-float-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #25D366;
  color: #FFFFFF;
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 700;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.35);
  transition: all var(--transition);
  border: 2px solid #FFFFFF;
}

.vth-float-whatsapp:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 16px 36px rgba(37, 211, 102, 0.45);
  color: #FFFFFF;
}

  .mobile-only-link {
    display: block !important;
  }
  .desktop-only-link {
    display: none !important;
  }

  .mobile-nav-toggle {
    display: block;
  }

  /* Mobile Swipe Carousel for Services */
  .services-overview-grid {
    display: flex !important;
    overflow-x: auto !important;
    scroll-snap-type: x mandatory !important;
    grid-template-columns: none !important;
    gap: 16px !important;
    padding: 10px 20px 24px !important;
    margin-left: -20px !important;
    margin-right: -20px !important;
    scroll-padding: 0 20px !important;
    scrollbar-width: none !important;
  }
  .services-overview-grid::-webkit-scrollbar {
    display: none !important;
  }
  .service-overview-card {
    flex: 0 0 80% !important;
    scroll-snap-align: start !important;
    padding: 24px !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-sm) !important;
  }
}

/* ==========================================================================
   PREMIUM MICRO-ANIMATIONS & SHADOW GLOWS
   ========================================================================== */
@keyframes revealUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero, 
.section-header, 
.services-overview-grid, 
.blog-list, 
.service-selector-card, 
.form-card {
  animation: revealUp 0.65s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* Stagger reveals */
.services-overview-grid > *:nth-child(1) { animation-delay: 0.08s; }
.services-overview-grid > *:nth-child(2) { animation-delay: 0.16s; }
.services-overview-grid > *:nth-child(3) { animation-delay: 0.24s; }

.blog-list > *:nth-child(1) { animation-delay: 0.1s; }
.blog-list > *:nth-child(2) { animation-delay: 0.2s; }
.blog-list > *:nth-child(3) { animation-delay: 0.3s; }

/* Custom Luxury Hover Border Glow transitions */
.service-overview-card:hover, 
.blog-card:hover, 
.guide-card:hover {
  border-color: var(--accent) !important;
  box-shadow: 0 12px 32px rgba(197, 160, 89, 0.12) !important;
}

/* ==========================================================================
   VIETNAM TRAVEL HACK HUB STYLES
   ========================================================================== */
.vth-hero-full-width {
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  position: relative;
  background: linear-gradient(180deg, rgba(5, 45, 35, 0.15) 0%, rgba(5, 30, 24, 0.48) 100%),
              url('/assets/hero_bg.jpg') center/cover no-repeat;
  padding: 32px 0 28px;
  border-bottom: 1px solid var(--emerald-light);
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(0,0,0,0.15);
}

.vth-hero-wrap {
  position: relative;
  background: linear-gradient(180deg, rgba(5, 45, 35, 0.38) 0%, rgba(5, 30, 24, 0.75) 100%),
              url('/assets/hero_bg.jpg') center/cover no-repeat;
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  margin-bottom: 32px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  overflow: hidden;
}

.vth-hero-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 32px;
}

.vth-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(197, 160, 89, 0.2);
  border: 1px solid var(--accent);
  color: #F7E7C4;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 14px;
}

.vth-hero-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.15;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.vth-hero-sub {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
  margin-bottom: 0;
}

/* Glassmorphism Widget Card */
.vth-glass-card {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-lg);
  padding: 24px;
  color: var(--text-primary);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.25);
}

/* Tab Controls */
.vth-tab-bar {
  display: flex;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 4px;
  gap: 4px;
  margin-bottom: 20px;
}

.vth-tab-btn {
  flex: 1;
  padding: 10px 14px;
  border: none;
  background: transparent;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.vth-tab-btn.active {
  background: #FFFFFF;
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
  font-weight: 700;
}

/* Interactive Map & Route UI */
.vth-map-container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 20px;
  align-items: start;
}

@media (max-width: 768px) {
  .vth-map-container {
    grid-template-columns: 1fr;
  }
}

.vth-svg-map-wrapper {
  background: var(--bg-secondary);
  border: 1px solid var(--stone-light);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  position: relative;
}

.vth-node-btn {
  background: #FFFFFF;
  border: 1.5px solid var(--stone);
  border-radius: 100px;
  padding: 6px 12px;
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 4px;
}

.vth-node-btn.selected-start {
  border-color: #27AE60;
  background: #E8F8F5;
  color: #196F3D;
  font-weight: 700;
}

.vth-node-btn.selected-end {
  border-color: #E74C3C;
  background: #FDEDEC;
  color: #922B21;
  font-weight: 700;
}

.vth-node-btn.selected-via {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--text-primary);
  font-weight: 700;
}

/* Banknote Tapper Buttons (Realistic Polymer Cards) */
.vth-note-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin-top: 14px;
}

@media (max-width: 768px) {
  .vth-note-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.vth-note-bill {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 8px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  background: #FFFFFF;
  border: 2px solid var(--stone-light);
  box-shadow: var(--shadow-sm);
  text-align: center;
  overflow: hidden;
}

.vth-note-bill:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 24px rgba(0,0,0,0.14);
  border-color: var(--accent);
}

.vth-note-bill:active {
  transform: translateY(0) scale(0.98);
}

.vth-bill-img-wrap {
  width: 100%;
  height: 64px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 8px;
  box-shadow: 0 3px 8px rgba(0,0,0,0.15);
  border: 1px solid rgba(0,0,0,0.1);
  background: #F0EDE4;
  display: flex;
  align-items: center;
  justify-content: center;
}

.vth-bill-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.vth-note-bill:hover .vth-bill-img {
  transform: scale(1.06);
}

.vth-note-bill.n-500k { border-color: #0083B0; }
.vth-note-bill.n-200k { border-color: #D35400; }
.vth-note-bill.n-100k { border-color: #27AE60; }
.vth-note-bill.n-50k  { border-color: #8E44AD; }
.vth-note-bill.n-20k  { border-color: #2980B9; }
.vth-note-bill.n-10k  { border-color: #B9770E; }

.vth-bill-title {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.vth-bill-sub {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--accent);
  margin-top: 3px;
}

/* Sticky Daily Utility Bar (Mobile) */
.vth-utility-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 32px;
}

.vth-utility-card {
  background: #FFFFFF;
  border: 1px solid var(--stone-light);
  border-radius: var(--radius-md);
  padding: 14px 10px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.vth-utility-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.vth-utility-icon {
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.vth-utility-title {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

/* Flashcard Overlay Modal */
.vth-modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.vth-modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.vth-flashcard-box {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  padding: 28px 20px;
  text-align: center;
  position: relative;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
}

.vth-flashcard-vi {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-display);
  margin-bottom: 8px;
}

.vth-flashcard-phonetic {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}

.vth-flashcard-en {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}