/* ============================================================================
   Turtigo Web - Modern Apple-Grade Travel Planning Design System
   Matches Turtigo iOS App Theme (#FB923C brand, dark glassmorphism surfaces)
   ============================================================================ */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;

  /* Colors */
  --color-primary: #fb923c;
  --color-primary-dark: #ea580c;
  --color-primary-light: #fed7aa;
  --color-primary-glow: rgba(251, 146, 60, 0.35);

  --bg-dark: #0b0d11;
  --bg-gradient: radial-gradient(circle at 50% 0%, #1c1917 0%, #0b0d11 100%);
  --bg-card: rgba(22, 27, 34, 0.75);
  --bg-card-hover: rgba(28, 35, 45, 0.85);
  --bg-card-elevated: rgba(30, 38, 50, 0.9);
  --bg-input: rgba(15, 19, 26, 0.8);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(251, 146, 60, 0.6);
  --border-light: rgba(255, 255, 255, 0.15);

  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  /* Categories */
  --cat-stay: #a855f7;
  --cat-dining: #f59e0b;
  --cat-sightseeing: #06b6d4;
  --cat-activity: #38bdf8;
  --cat-flight: #3b82f6;
  --cat-transport: #10b981;
  --cat-other: #94a3b8;

  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 12px 28px -6px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 8px 30px rgba(249, 115, 22, 0.25);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Glassmorphism utility */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* Layout container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 13, 17, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.2s ease;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #fff;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.5px;
}

.brand-logo-img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
  display: block;
}

.brand-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
}

.brand-logo-icon svg {
  width: 24px;
  height: 24px;
  fill: #fff;
}

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

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #fff;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #111827;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.25);
}

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

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.12);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.13);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: var(--radius-md);
}

/* User pill in nav */
.user-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  font-size: 13px;
  cursor: pointer;
}

.user-avatar-circle {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #111;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(251, 146, 60, 0.12);
  border: 1px solid rgba(251, 146, 60, 0.28);
  border-radius: 9999px;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 20px;
  background: linear-gradient(180deg, #ffffff 40%, rgba(255, 255, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(16px, 2.2vw, 20px);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

/* Interactive Itinerary Live Mockup */
.mockup-container {
  max-width: 900px;
  margin: 0 auto;
  background: rgba(18, 22, 29, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: 0 30px 70px -15px rgba(0, 0, 0, 0.8), 0 0 40px rgba(251, 146, 60, 0.15);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
}

.mockup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.mockup-trip-info {
  display: flex;
  align-items: center;
  gap: 14px;
  text-align: left;
}

.mockup-trip-photo {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, #f97316, #ea580c);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.mockup-trip-name {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.mockup-trip-dates {
  font-size: 13px;
  color: var(--text-muted);
}

.mockup-days-pills {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 20px;
  scrollbar-width: none;
}

.mockup-days-pills::-webkit-scrollbar {
  display: none;
}

.day-pill {
  padding: 8px 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.day-pill.active {
  background: linear-gradient(135deg, rgba(251, 146, 60, 0.25), rgba(234, 88, 12, 0.15));
  border-color: rgba(251, 146, 60, 0.5);
  color: var(--color-primary);
}

/* Feature Spotlight & Grid */
.features-section {
  padding: 80px 0;
}

.section-tag {
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 48px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.16);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
}

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
}

.feature-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}

.feature-text {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Inbound Forwarding Spotlight Card */
.forwarding-spotlight {
  background: linear-gradient(135deg, rgba(251, 146, 60, 0.08) 0%, rgba(18, 22, 29, 0.9) 100%);
  border: 1px solid rgba(251, 146, 60, 0.3);
  border-radius: var(--radius-xl);
  padding: 40px;
  margin: 60px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

@media (max-width: 860px) {
  .forwarding-spotlight {
    grid-template-columns: 1fr;
    padding: 28px;
  }
}

.email-address-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px dashed rgba(251, 146, 60, 0.4);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--color-primary-light);
  margin: 20px 0;
  user-select: all;
}

/* Interactive Ticket / Booking Card in Timeline */
.timeline-card {
  display: flex;
  gap: 16px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  margin-bottom: 12px;
  transition: all 0.2s ease;
  position: relative;
}

.timeline-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}

.timeline-icon-box {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}

.timeline-content {
  flex: 1;
}

.timeline-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.timeline-item-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
}

.timeline-time-badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.timeline-item-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.4;
}

.timeline-meta-tags {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
}

/* Category colors */
.cat-flight { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.cat-stay { background: rgba(168, 85, 247, 0.15); color: #c084fc; }
.cat-dining { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.cat-sightseeing { background: rgba(6, 182, 212, 0.15); color: #38bdf8; }
.cat-transport { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.cat-activity { background: rgba(251, 146, 60, 0.15); color: #fb923c; }

/* Dashboard Section (Logged-In Hub) */
.dashboard-view {
  padding: 40px 0 80px;
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.trip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.trip-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.trip-card:hover {
  transform: translateY(-4px);
  border-color: rgba(251, 146, 60, 0.4);
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.7), 0 0 20px rgba(251, 146, 60, 0.15);
}

.trip-card-banner {
  height: 140px;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 16px;
  background-size: cover;
  background-position: center;
}

.trip-card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  color: #fff;
}

.trip-card-badge.active {
  background: rgba(16, 185, 129, 0.85);
}

.trip-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.trip-card-title {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.trip-card-destination {
  font-size: 14px;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.trip-card-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  font-size: 13px;
  color: var(--text-muted);
}

/* Trip Detail & Interactive Itinerary Viewer */
.trip-detail-view {
  padding: 30px 0 80px;
}

.trip-hero-banner {
  background: linear-gradient(180deg, rgba(22, 27, 34, 0.95), rgba(15, 19, 26, 0.95));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 32px;
  margin-bottom: 28px;
  position: relative;
  box-shadow: var(--shadow-md);
}

.trip-hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.trip-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 28px;
  overflow-x: auto;
  scrollbar-width: none;
}

.trip-tab-btn {
  padding: 12px 20px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
  white-space: nowrap;
}

.trip-tab-btn:hover {
  color: #fff;
}

.trip-tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

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

.modal-card {
  width: 100%;
  max-width: 480px;
  background: rgba(22, 27, 34, 0.95);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.96);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.modal-close-btn {
  background: rgba(255, 255, 255, 0.08);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: background 0.2s;
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

/* Forms */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(251, 146, 60, 0.2);
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: rgba(28, 35, 45, 0.95);
  border: 1px solid var(--border-subtle);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
}

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

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  background: var(--bg-card);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-xl);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.empty-state-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.empty-state-desc {
  color: var(--text-muted);
  max-width: 420px;
  margin: 0 auto 24px;
  font-size: 14px;
}

/* Footer */
footer.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 40px;
  background: rgba(8, 10, 13, 0.95);
  color: var(--text-muted);
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

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

.footer-brand p {
  margin-top: 12px;
  max-width: 320px;
  font-size: 13px;
  line-height: 1.6;
}

.footer-heading {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 30px;
  border-top: 1px solid var(--border-subtle);
  font-size: 13px;
  flex-wrap: wrap;
  gap: 12px;
}


/* ============================================================================
   MOBILE & RESPONSIVE ADAPTATIONS
   ============================================================================ */

/* Mobile Hamburger Toggle */
.mobile-toggle-btn {
  display: none;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  width: 38px;
  height: 38px;
  padding: 9px 8px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  transition: all 0.2s ease;
  margin-left: 4px;
}

.mobile-toggle-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-toggle-btn.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-toggle-btn.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-toggle-btn.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  display: none;
  background: rgba(11, 13, 17, 0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 0 20px;
}

.mobile-nav-drawer.open {
  display: block;
  animation: drawerSlide 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.mobile-nav-link {
  display: block;
  padding: 12px 4px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color 0.2s;
}

.mobile-nav-link:hover {
  color: var(--color-primary);
}

/* Responsive Breakpoints */
@media (max-width: 820px) {
  .desktop-only {
    display: none !important;
  }

  .mobile-toggle-btn {
    display: flex;
  }

  .nav-wrapper {
    height: 64px;
  }

  .brand-link {
    font-size: 18px;
    gap: 8px;
  }

  .brand-logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
  }

  .forwarding-spotlight {
    grid-template-columns: 1fr;
    padding: 24px 16px;
    margin: 36px 0;
    gap: 24px;
    border-radius: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

  /* Typography & Hero */
  .hero-section {
    padding: 36px 0 28px;
  }

  .hero-badge {
    font-size: 11px;
    padding: 4px 12px;
    margin-bottom: 16px;
  }

  .hero-title {
    font-size: clamp(28px, 7.5vw, 42px);
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: 14px;
  }

  .hero-subtitle {
    font-size: 14px;
    margin-bottom: 24px;
    line-height: 1.55;
    padding: 0 4px;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    max-width: 320px;
    margin: 0 auto 32px;
    gap: 10px;
  }

  .hero-cta-group .btn {
    width: 100%;
    padding: 13px 20px;
    font-size: 15px;
  }

  /* Mockup Container */
  .mockup-container {
    padding: 16px 12px;
    border-radius: 18px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
  }

  .mockup-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
    padding-bottom: 12px;
  }

  .mockup-trip-photo {
    width: 42px;
    height: 42px;
    font-size: 20px;
    border-radius: 12px;
  }

  .mockup-trip-name {
    font-size: 15px;
  }

  .mockup-trip-dates {
    font-size: 12px;
  }

  .mockup-days-pills {
    gap: 6px;
    padding-bottom: 8px;
    margin-bottom: 14px;
    -webkit-overflow-scrolling: touch;
  }

  .day-pill {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 10px;
    flex-shrink: 0;
  }

  /* Timeline cards */
  .timeline-card {
    padding: 12px;
    gap: 10px;
    margin-bottom: 10px;
    border-radius: 12px;
  }

  .timeline-icon-box {
    width: 36px;
    height: 36px;
    font-size: 16px;
    border-radius: 10px;
  }

  .timeline-top-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    margin-bottom: 4px;
  }

  .timeline-item-title {
    font-size: 14px;
    line-height: 1.35;
  }

  .timeline-time-badge {
    font-size: 11px;
    color: var(--color-primary);
  }

  .timeline-item-desc {
    font-size: 12px;
    line-height: 1.45;
  }

  .timeline-meta-tags {
    gap: 4px;
    margin-top: 6px;
  }

  .meta-tag {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
  }

  /* Forwarding Spotlight */
  .forwarding-spotlight {
    padding: 20px 14px;
    margin: 28px 0;
    border-radius: 18px;
    gap: 18px;
  }

  .forwarding-spotlight h2 {
    font-size: 22px;
    line-height: 1.25;
  }

  .email-address-badge {
    width: 100%;
    box-sizing: border-box;
    font-size: 12px;
    padding: 10px 12px;
    gap: 6px;
    justify-content: space-between;
    margin: 14px 0;
  }

  .email-address-badge span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
  }

  /* Feature Grid */
  .features-section {
    padding: 40px 0;
  }

  .section-title {
    font-size: 26px;
    letter-spacing: -0.5px;
    margin-bottom: 10px;
  }

  .section-desc {
    font-size: 14px;
    margin-bottom: 24px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .feature-card {
    padding: 20px 16px;
    border-radius: 16px;
  }

  .feature-icon-wrapper {
    width: 44px;
    height: 44px;
    font-size: 20px;
    border-radius: 12px;
    margin-bottom: 14px;
  }

  .feature-title {
    font-size: 17px;
  }

  .feature-text {
    font-size: 13.5px;
  }

  #appstore {
    padding: 30px 0 60px !important;
  }

  #appstore .glass-panel {
    padding: 28px 16px;
    border-radius: 20px;
  }

  #appstore h2 {
    font-size: 24px;
  }

  #appstore .btn {
    width: 100%;
    max-width: 320px;
  }

  /* Dashboard View */
  .dashboard-view {
    padding: 20px 0 50px;
  }

  .dashboard-header {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    margin-bottom: 20px;
  }

  .dashboard-header h1 {
    font-size: 26px;
  }

  .dashboard-header > div:last-child {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    width: 100%;
  }

  .dashboard-header .btn {
    width: 100%;
    justify-content: center;
  }

  .trip-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .trip-card-banner {
    height: 120px;
  }

  .trip-card-body {
    padding: 16px;
  }

  /* Trip Detail & Interactive Itinerary */
  .trip-detail-view {
    padding: 16px 0 50px;
  }

  .trip-hero-banner {
    padding: 18px 14px;
    border-radius: 18px;
    margin-bottom: 18px;
  }

  .trip-hero-top {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    margin-bottom: 16px;
  }

  #trip-detail-title {
    font-size: 22px;
    margin: 4px 0;
  }

  .trip-hero-top > div:last-child {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    width: 100%;
  }

  .trip-hero-top .btn {
    justify-content: center;
    padding: 8px 12px;
    font-size: 13px;
  }

  #btn-print-itinerary {
    display: none; /* Not relevant on mobile devices */
  }

  .trip-tabs {
    gap: 4px;
    margin-bottom: 20px;
    -webkit-overflow-scrolling: touch;
  }

  .trip-tab-btn {
    padding: 10px 12px;
    font-size: 13px;
  }

  #trip-current-day-label {
    font-size: 14px;
  }

  /* Modals & Forms */
  .modal-overlay {
    padding: 10px;
    align-items: flex-end;
  }

  .modal-card {
    width: 100%;
    max-width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 24px 18px;
    border-radius: 24px 24px 16px 16px;
    box-sizing: border-box;
  }

  .modal-header h3 {
    font-size: 18px;
  }

  .form-grid-2col {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }

  /* 16px font size prevents iOS Safari from automatically zooming in on input focus */
  .form-input, .form-select, .form-textarea {
    font-size: 16px;
    padding: 11px 14px;
  }

  /* Footer */
  footer.site-footer {
    padding: 36px 0 24px;
  }

  .footer-grid {
    gap: 22px;
    margin-bottom: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 6px;
    padding-top: 18px;
    font-size: 12px;
  }
}