/* ==========================================================================
   Corporate Travelling Club - Premium Design System & CSS Variables
   ========================================================================== */

:root {
  /* Color Palette - Dark Mode Default */
  --bg-main: #090d16;
  --bg-card: #111827;
  --bg-card-hover: #1f2937;
  --bg-glass: rgba(17, 24, 39, 0.75);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-focus: #f97316;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --brand-orange: #f97316;
  --brand-orange-hover: #ea580c;
  --brand-emerald: #10b981;
  --brand-emerald-hover: #059669;
  --brand-blue: #3b82f6;

  --shadow-glow: 0 0 25px rgba(249, 115, 22, 0.25);
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.5);
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --border-color: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
}

body {
  overflow-x: hidden;
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
}

button, input, select, textarea {
  font-family: inherit;
}

/* Containers & Utilities */
.container {
  width: 90%;
  max-width: 1280px;
  margin: 0 auto;
}

.text-gradient-orange {
  background: linear-gradient(135deg, #f97316 0%, #fb923c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-emerald {
  background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.bg-glass {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-orange) 0%, var(--brand-orange-hover) 100%);
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(249, 115, 22, 0.4);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.45);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--brand-orange);
  color: var(--brand-orange);
  transform: translateY(-2px);
}

/* Header Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: var(--bg-glass);
  box-shadow: var(--shadow-card);
  padding: 0.75rem 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-orange), #f59e0b);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--brand-orange);
}

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

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: var(--transition);
}

.theme-toggle:hover {
  border-color: var(--brand-orange);
  color: var(--brand-orange);
}

/* Mobile Nav Toggle */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 9rem 0 5rem;
  min-h: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.15) 0%, rgba(0,0,0,0) 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  background: rgba(249, 115, 22, 0.12);
  border: 1px solid rgba(249, 115, 22, 0.3);
  color: var(--brand-orange);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: 1.25rem;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 90%;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
}

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

.hero-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.hero-img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
}

.hero-card-badge {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
}

/* Sections Base */
.section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-tag {
  color: var(--brand-orange);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-card {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand-orange);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(249, 115, 22, 0.15);
  color: var(--brand-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.feature-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Filter Tabs */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.6rem 1.4rem;
  border-radius: 30px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover, .tab-btn.active {
  background: var(--brand-orange);
  color: #fff;
  border-color: var(--brand-orange);
}

/* Trip Cards Grid */
.trips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.trip-card {
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.trip-img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.trip-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.trip-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--brand-orange);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.trip-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.trip-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.trip-meta {
  display: flex;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.trip-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.trip-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.trip-price {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--brand-orange);
}

.trip-price span {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
}

/* Contact & Form Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.contact-info-card {
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.contact-item {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: rgba(249, 115, 22, 0.12);
  color: var(--brand-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.contact-form {
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-lg);
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--brand-orange);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
}

/* Floating WhatsApp Chat Widget */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.5rem;
  border-radius: 50px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
  transition: var(--transition);
  cursor: pointer;
}

.floating-whatsapp:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 15px 35px rgba(16, 185, 129, 0.55);
}

.wa-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #22c55e;
  border: 2px solid #fff;
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(34, 197, 94, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-card);
  padding: 2.5rem;
  transform: scale(0.9);
  transition: var(--transition);
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text-primary);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  background: #0f172a;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideIn 0.3s forwards;
}

.toast.success {
  border-color: #10b981;
}

@keyframes slideIn {
  from { transform: translateX(-100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Footer */
footer {
  background: #050811;
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid, .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-title { font-size: 2.75rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--bg-card);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    display: none;
    border-bottom: 1px solid var(--border-color);
  }
  .nav-menu.active { display: flex; }
  .menu-toggle { display: block; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; gap: 1rem; }
  .trips-grid { grid-template-columns: 1fr; }
  .floating-whatsapp span { display: none; }
  .floating-whatsapp { padding: 1rem; border-radius: 50%; }
}