/**
 * Welcome2Caucasus - Main Stylesheet
 * Modern trekking/hiking tour theme
 * 
 * Table of Contents:
 * 1. CSS Variables & Design Tokens
 * 2. Reset & Base Styles
 * 3. Typography
 * 4. Layout & Grid
 * 5. Header & Navigation
 * 6. Hero Sections
 * 7. Tour Cards
 * 8. Tour Archive & Filters
 * 9. Single Tour Page
 * 10. Itinerary Timeline
 * 11. Booking Sidebar
 * 12. Forms & Inputs
 * 13. Buttons & CTAs
 * 14. Footer
 * 15. Components (Icons, Badges, etc.)
 * 16. Animations
 * 17. Utilities
 * 18. Responsive
 */

/* ==========================================================================
   1. CSS Variables & Design Tokens
   ========================================================================== */

:root {
  /* Brand Colors - Welcome2Caucasus */
  --color-primary: #012849;        /* Deep navy blue */
  --color-primary-light: #0a4a7a;   /* Lighter navy */
  --color-primary-dark: #001a33;    /* Dark navy */

  --color-secondary: #d54455;       /* Vibrant red/coral */
  --color-secondary-light: #e66b79;
  --color-secondary-dark: #b33344;

  --color-accent: #d54455;          /* Same as secondary for consistency */
  --color-accent-light: #e66b79;
  --color-accent-dark: #b33344;
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-off-white: #F8F7F4;
  --color-cream: #F5F3EE;
  --color-gray-100: #F1EFE9;
  --color-gray-200: #E5E2DA;
  --color-gray-300: #D1CCC2;
  --color-gray-400: #A9A49A;
  --color-gray-500: #7A756C;
  --color-gray-600: #5C5850;
  --color-gray-700: #403D37;
  --color-gray-800: #2A2824;
  --color-gray-900: #1A1917;
  --color-black: #0F0E0D;
  
  /* Semantic Colors */
  --color-success: #2E7D5A;
  --color-warning: #d54455;
  --color-error: #d54455;
  --color-info: #012849;
  
  /* Typography - Modern & Clean */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-accent: 'Outfit', sans-serif;
  
  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.25rem;     /* 20px */
  --text-2xl: 1.5rem;     /* 24px */
  --text-3xl: 1.875rem;   /* 30px */
  --text-4xl: 2.25rem;    /* 36px */
  --text-5xl: 3rem;       /* 48px */
  --text-6xl: 3.75rem;    /* 60px */
  --text-7xl: 4.5rem;     /* 72px */
  
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;
  
  /* Spacing */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-3xl: 32px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 14, 13, 0.05);
  --shadow-sm: 0 1px 3px rgba(15, 14, 13, 0.1), 0 1px 2px rgba(15, 14, 13, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(15, 14, 13, 0.1), 0 2px 4px -1px rgba(15, 14, 13, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(15, 14, 13, 0.1), 0 4px 6px -2px rgba(15, 14, 13, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(15, 14, 13, 0.1), 0 10px 10px -5px rgba(15, 14, 13, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(15, 14, 13, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(15, 14, 13, 0.06);
  
  /* Transitions */
  --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  --duration-75: 75ms;
  --duration-100: 100ms;
  --duration-150: 150ms;
  --duration-200: 200ms;
  --duration-300: 300ms;
  --duration-500: 500ms;
  --duration-700: 700ms;
  --duration-1000: 1000ms;
  
  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  
  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1400px;
  
  --header-height: 80px;
  --header-height-scrolled: 64px;
}

/* ==========================================================================
   2. Reset & Base Styles
   ========================================================================== */

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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-gray-800);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

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

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

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

ul, ol {
  list-style: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

/* ==========================================================================
   3. Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: var(--leading-tight);
  color: var(--color-gray-900);
}

h1 {
  font-size: var(--text-5xl);
  letter-spacing: var(--tracking-tight);
}

h2 {
  font-size: var(--text-4xl);
  letter-spacing: var(--tracking-tight);
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

.text-accent {
  font-family: var(--font-accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  font-size: var(--text-sm);
}

/* ==========================================================================
   4. Layout & Grid
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-2xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.container--narrow {
  max-width: var(--container-lg);
}

.container--wide {
  max-width: 1600px;
}

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

/* ==========================================================================
   5. Header & Navigation
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  height: var(--header-height);
  transition: all var(--duration-300) var(--ease-default);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--space-8);
}

/* Transparent header for hero pages */
.site-header--transparent {
  background: linear-gradient(to bottom, rgba(0,0,0,0.4) 0%, transparent 100%);
}

.site-header--transparent .nav-link,
.site-header--transparent .site-logo {
  color: var(--color-white);
}

/* Scrolled header state */
.site-header--scrolled {
  background: var(--color-white);
  height: var(--header-height-scrolled);
  box-shadow: var(--shadow-md);
}

.site-header--scrolled .nav-link,
.site-header--scrolled .site-logo {
  color: var(--color-gray-900);
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 400;
  transition: color var(--duration-200);
}

.site-logo__img {
  height: 48px;
  width: auto;
}

.site-header--scrolled .site-logo__img {
  height: 40px;
}

/* Main Navigation */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu > li {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  transition: all var(--duration-200);
  border-radius: var(--radius-md);
  position: relative;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
}

.site-header--scrolled .nav-link:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
}

.nav-link--active {
  color: var(--color-secondary);
}

/* Dropdown Menu */
.nav-dropdown {
  position: relative;
}

.nav-dropdown__menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 240px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-3);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-200);
  list-style: none;
  margin: 0;
  z-index: var(--z-dropdown);
}

.nav-dropdown__menu li {
  margin: 0;
}

.nav-dropdown:hover .nav-dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown__link {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--color-gray-700);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  transition: all var(--duration-150);
}

.nav-dropdown__link:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
  padding-left: var(--space-5);
}

/* Header CTA Button */
.header-cta {
  margin-left: var(--space-4);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: background var(--duration-150);
}

.mobile-menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.site-header--scrolled .mobile-menu-toggle:hover {
  background: var(--color-gray-100);
}

.mobile-menu-toggle__icon {
  width: 24px;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: background var(--duration-200);
}

.mobile-menu-toggle__icon::before,
.mobile-menu-toggle__icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform var(--duration-200);
}

.mobile-menu-toggle__icon::before { top: -8px; }
.mobile-menu-toggle__icon::after { bottom: -8px; }

/* Mobile Menu Open State */
.mobile-menu-toggle--open .mobile-menu-toggle__icon {
  background: transparent;
}

.mobile-menu-toggle--open .mobile-menu-toggle__icon::before {
  transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle--open .mobile-menu-toggle__icon::after {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   6. Hero Sections
   ========================================================================== */

.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: flex-end;
  padding: var(--space-24) 0 var(--space-16);
  overflow: hidden;
}

.hero--full {
  min-height: 100vh;
}

.hero--tour {
  min-height: 60vh;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

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

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(15, 14, 13, 0.8) 0%,
    rgba(15, 14, 13, 0.4) 50%,
    rgba(15, 14, 13, 0.2) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  color: var(--color-white);
  max-width: 800px;
}

.hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.8);
}

.hero__breadcrumb a:hover {
  color: var(--color-white);
}

.hero__breadcrumb svg {
  width: 16px;
  height: 16px;
  opacity: 0.6;
}

.hero__title {
  font-size: var(--text-5xl);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero__subtitle {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-6);
  max-width: 600px;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.hero__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.9);
}

.hero__meta-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-secondary);
}

/* ==========================================================================
   7. Tour Cards
   ========================================================================== */

.tour-card {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--duration-300) var(--ease-default);
}

.tour-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

/* Card Image */
.tour-card__image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.tour-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-500) var(--ease-out);
}

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

/* Image Overlay on Hover */
.tour-card__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--duration-300);
}

.tour-card:hover .tour-card__image::after {
  opacity: 1;
}

/* Duration Badge */
.tour-card__duration {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-white);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-800);
  box-shadow: var(--shadow-md);
}

.tour-card__duration svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
}

/* Price Badge */
.tour-card__price {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
}

.tour-card__price-label {
  font-size: var(--text-xs);
  font-weight: 400;
  opacity: 0.9;
}

/* Category Tags */
.tour-card__tags {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-4);
  right: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--duration-300);
}

.tour-card:hover .tour-card__tags {
  opacity: 1;
  transform: translateY(0);
}

.tour-card__tag {
  padding: var(--space-1) var(--space-3);
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* Card Content */
.tour-card__content {
  padding: var(--space-6);
}

.tour-card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  line-height: var(--leading-snug);
}

.tour-card__title a {
  transition: color var(--duration-150);
}

.tour-card__title a:hover {
  color: var(--color-primary);
}

.tour-card__excerpt {
  color: var(--color-gray-600);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Card Footer */
.tour-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-200);
}

.tour-card__meta {
  display: flex;
  gap: var(--space-4);
}

.tour-card__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.tour-card__meta-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
}

.tour-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  transition: gap var(--duration-200);
}

.tour-card__link:hover {
  gap: var(--space-3);
}

.tour-card__link svg {
  width: 20px;
  height: 20px;
  transition: transform var(--duration-200);
}

.tour-card:hover .tour-card__link svg {
  transform: translateX(4px);
}

/* ==========================================================================
   8. Tour Archive & Filters
   ========================================================================== */

.tour-archive {
  padding: var(--space-16) 0;
  background: var(--color-off-white);
}

/* Filter Bar */
.tour-filters {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  margin-bottom: var(--space-10);
  box-shadow: var(--shadow-lg);
}

.tour-filters__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* Filter Categories - Pill Style */
.tour-filters__categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-bottom: var(--space-6);
  margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-gray-200);
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  border: 2px solid transparent;
  transition: all var(--duration-200);
  cursor: pointer;
}

.filter-pill:hover {
  background: var(--color-primary-light);
  color: var(--color-white);
}

.filter-pill--active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.filter-pill svg {
  width: 18px;
  height: 18px;
}

/* Filter Dropdowns */
.filter-select {
  position: relative;
  min-width: 180px;
}

.filter-select__button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-gray-100);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  cursor: pointer;
  transition: all var(--duration-150);
}

.filter-select__button:hover,
.filter-select__button:focus {
  border-color: var(--color-primary);
  background: var(--color-white);
}

.filter-select__button svg {
  width: 20px;
  height: 20px;
  color: var(--color-gray-500);
  transition: transform var(--duration-200);
}

.filter-select--open .filter-select__button svg {
  transform: rotate(180deg);
}

.filter-select__dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 0;
  right: 0;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--duration-200);
  z-index: var(--z-dropdown);
}

.filter-select--open .filter-select__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.filter-select__option {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  border-radius: var(--radius-md);
  transition: all var(--duration-150);
}

.filter-select__option:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
}

.filter-select__option--selected {
  background: var(--color-primary);
  color: var(--color-white);
}

/* Results Count */
.tour-results__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.tour-results__count {
  font-size: var(--text-lg);
  color: var(--color-gray-600);
}

.tour-results__count strong {
  color: var(--color-gray-900);
  font-weight: 600;
}

/* Tour Grid */
.tour-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

/* ==========================================================================
   9. Single Tour Page
   ========================================================================== */

.single-tour {
  padding-top: var(--header-height);
}

/* Tour Navigation Tabs */
.tour-nav {
  position: sticky;
  top: var(--header-height-scrolled);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  z-index: var(--z-sticky);
}

.tour-nav__inner {
  display: flex;
  gap: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.tour-nav__inner::-webkit-scrollbar {
  display: none;
}

.tour-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-600);
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  transition: all var(--duration-200);
}

.tour-nav__link:hover {
  color: var(--color-primary);
  background: var(--color-gray-100);
}

.tour-nav__link--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tour-nav__link svg {
  width: 18px;
  height: 18px;
}

/* Tour Content Layout */
.tour-content {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-12);
  padding: var(--space-12) 0;
}

.tour-main {
  min-width: 0;
}

.tour-sidebar {
  position: relative;
}

/* Tour Section */
.tour-section {
  margin-bottom: var(--space-16);
  scroll-margin-top: calc(var(--header-height-scrolled) + 80px);
}

.tour-section__header {
  margin-bottom: var(--space-6);
}

.tour-section__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-2);
}

.tour-section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray-600);
}

/* Tour Highlights */
.tour-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.tour-highlight {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-cream);
  border-radius: var(--radius-lg);
}

.tour-highlight__icon {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.tour-highlight__text {
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  line-height: var(--leading-relaxed);
}

/* Tour Stats */
.tour-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-gray-100);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-8);
}

.tour-stat {
  text-align: center;
  padding: var(--space-4);
}

.tour-stat__icon {
  width: 32px;
  height: 32px;
  margin: 0 auto var(--space-3);
  color: var(--color-primary);
}

.tour-stat__value {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--color-gray-900);
  margin-bottom: var(--space-1);
}

.tour-stat__label {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

/* ==========================================================================
   10. Itinerary Timeline
   ========================================================================== */

.itinerary {
  position: relative;
}

.itinerary__item {
  position: relative;
  padding-left: 80px;
  padding-bottom: var(--space-10);
}

.itinerary__item:last-child {
  padding-bottom: 0;
}

/* Timeline Line */
.itinerary__item::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 56px;
  bottom: 0;
  width: 2px;
  background: var(--color-gray-200);
}

.itinerary__item:last-child::before {
  display: none;
}

/* Day Number */
.itinerary__day {
  position: absolute;
  left: 0;
  top: 0;
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
}

.itinerary__day-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  opacity: 0.8;
}

.itinerary__day-number {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: 1;
}

/* Day Content */
.itinerary__content {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
}

.itinerary__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}

.itinerary__description {
  color: var(--color-gray-600);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.itinerary__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-4);
}

.itinerary__image img {
  width: 100%;
  height: auto;
}

/* Day Meta */
.itinerary__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-200);
}

.itinerary__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

.itinerary__meta-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
}

/* Modern Itinerary Cards */
.itinerary-modern {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.itinerary-card {
  display: flex;
  gap: var(--space-6);
  position: relative;
}

.itinerary-card__marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  width: 48px;
}

.itinerary-card__icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(27, 77, 62, 0.3);
  position: relative;
  z-index: 2;
}

.itinerary-card__icon svg {
  width: 24px;
  height: 24px;
}

.itinerary-card__line {
  width: 2px;
  flex-grow: 1;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-gray-200) 100%);
  margin-top: var(--space-2);
}

.itinerary-card--last .itinerary-card__line {
  display: none;
}

.itinerary-card__content {
  flex-grow: 1;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-6);
  box-shadow: 0 2px 8px rgba(15, 14, 13, 0.06), 0 4px 16px rgba(15, 14, 13, 0.04);
  border: 1px solid var(--color-gray-100);
  transition: all var(--duration-300) var(--ease-default);
}

.itinerary-card__content:hover {
  box-shadow: 0 4px 12px rgba(15, 14, 13, 0.08), 0 8px 24px rgba(15, 14, 13, 0.06);
  border-color: var(--color-primary-light);
  transform: translateX(4px);
}

.itinerary-card--last .itinerary-card__content {
  margin-bottom: 0;
}

.itinerary-card__day {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-primary);
  background: var(--color-primary);
  background: linear-gradient(135deg, rgba(27, 77, 62, 0.1) 0%, rgba(42, 123, 95, 0.1) 100%);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-2);
}

.itinerary-card__title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin: 0 0 var(--space-4) 0;
  line-height: var(--leading-snug);
}

.itinerary-card__description {
  color: var(--color-gray-600);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

.itinerary-card__description p {
  margin-bottom: var(--space-3);
}

.itinerary-card__description p:last-child {
  margin-bottom: 0;
}

.itinerary-card__description img {
  border-radius: var(--radius-lg);
  margin: var(--space-4) 0;
  box-shadow: var(--shadow-md);
  max-width: 100%;
  height: auto;
}

.itinerary-card__description .alignright {
  float: right;
  margin: 0 0 var(--space-4) var(--space-6);
  max-width: 300px;
}

.itinerary-card__description .alignleft {
  float: left;
  margin: 0 var(--space-6) var(--space-4) 0;
  max-width: 300px;
}

.itinerary-card__content::after {
  content: '';
  display: table;
  clear: both;
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .itinerary-card {
    gap: var(--space-4);
  }

  .itinerary-card__marker {
    width: 40px;
  }

  .itinerary-card__icon {
    width: 40px;
    height: 40px;
  }

  .itinerary-card__icon svg {
    width: 20px;
    height: 20px;
  }

  .itinerary-card__content {
    padding: var(--space-4);
  }

  .itinerary-card__title {
    font-size: var(--text-base);
  }
}

/* ==========================================================================
   10b. Modern Tables (Tour Content)
   ========================================================================== */

.tour-description .table-responsive,
.tour-section .table-responsive,
.itinerary-card__description .table-responsive {
  overflow-x: auto;
  margin: var(--space-6) 0;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.tour-description table,
.tour-section table,
.itinerary-card__description table,
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  font-size: var(--text-sm);
}

.tour-description table thead,
.tour-section table thead,
.itinerary-card__description table thead,
.table thead {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.tour-description table th,
.tour-section table th,
.itinerary-card__description table th,
.table th {
  padding: var(--space-4) var(--space-5);
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-white);
  border-bottom: 2px solid var(--color-primary-dark);
}

.tour-description table td,
.tour-section table td,
.itinerary-card__description table td,
.table td {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-gray-100);
  color: var(--color-gray-700);
  vertical-align: middle;
  transition: background-color var(--duration-200) var(--ease-default);
}

.tour-description table tbody tr,
.tour-section table tbody tr,
.itinerary-card__description table tbody tr,
.table tbody tr {
  transition: all var(--duration-200) var(--ease-default);
}

.tour-description table tbody tr:hover,
.tour-section table tbody tr:hover,
.itinerary-card__description table tbody tr:hover,
.table tbody tr:hover {
  background-color: var(--color-gray-100);
}

.tour-description table tbody tr:nth-child(even),
.tour-section table tbody tr:nth-child(even),
.itinerary-card__description table tbody tr:nth-child(even),
.table tbody tr:nth-child(even) {
  background-color: var(--color-off-white);
}

.tour-description table tbody tr:nth-child(even):hover,
.tour-section table tbody tr:nth-child(even):hover,
.itinerary-card__description table tbody tr:nth-child(even):hover,
.table tbody tr:nth-child(even):hover {
  background-color: var(--color-gray-100);
}

.tour-description table tbody tr:last-child td,
.tour-section table tbody tr:last-child td,
.itinerary-card__description table tbody tr:last-child td,
.table tbody tr:last-child td {
  border-bottom: none;
}

/* Table caption styling */
.tour-description table caption,
.tour-section table caption,
.table caption {
  padding: var(--space-4);
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-gray-700);
  text-align: left;
  caption-side: top;
}

/* Responsive table adjustments */
@media (max-width: 640px) {
  .tour-description table,
  .tour-section table,
  .itinerary-card__description table,
  .table {
    font-size: var(--text-xs);
  }

  .tour-description table th,
  .tour-section table th,
  .itinerary-card__description table th,
  .table th,
  .tour-description table td,
  .tour-section table td,
  .itinerary-card__description table td,
  .table td {
    padding: var(--space-3) var(--space-3);
  }
}

/* ==========================================================================
   11. Booking Sidebar
   ========================================================================== */

.booking-card {
  position: sticky;
  top: calc(var(--header-height-scrolled) + var(--space-8));
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.booking-card__header {
  padding: var(--space-6);
  background: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}

.booking-card__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.booking-card__price-value {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
}

.booking-card__price-label {
  font-size: var(--text-sm);
  opacity: 0.8;
}

.booking-card__rating {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

.booking-card__stars {
  color: var(--color-secondary);
}

.booking-card__body {
  padding: var(--space-6);
}

/* Tour Info List */
.booking-info {
  margin-bottom: var(--space-6);
}

.booking-info__item {
  display: flex;
  align-items: center;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-gray-200);
}

.booking-info__item:last-child {
  border-bottom: none;
}

.booking-info__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-cream);
  border-radius: var(--radius-md);
  margin-right: var(--space-4);
  flex-shrink: 0;
}

.booking-info__icon svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.booking-info__text {
  flex: 1;
}

.booking-info__label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-gray-500);
  margin-bottom: var(--space-1);
}

.booking-info__value {
  font-weight: 600;
  color: var(--color-gray-900);
}

/* CTA Button */
.booking-card__cta {
  width: 100%;
}

.booking-card__footer {
  padding: var(--space-4) var(--space-6) var(--space-6);
  text-align: center;
}

.booking-card__help {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

.booking-card__help a {
  color: var(--color-primary);
  font-weight: 600;
}

/* ==========================================================================
   12. Forms & Inputs
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-4);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  color: var(--color-gray-900);
  background: var(--color-white);
  transition: all var(--duration-200);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(27, 77, 62, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%237A756C' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-12);
}

/* ==========================================================================
   13. Buttons & CTAs
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration-200);
  text-decoration: none;
}

.btn svg {
  width: 20px;
  height: 20px;
}

/* Primary Button */
.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Secondary Button */
.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-white);
}

.btn--secondary:hover {
  background: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Accent/CTA Button */
.btn--accent {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn--accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Outline Button */
.btn--outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* Ghost Button (for dark backgrounds) */
.btn--ghost {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-white);
}

.btn--ghost:hover {
  background: var(--color-white);
  color: var(--color-gray-900);
}

/* Size Variants */
.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn--lg {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-base);
}

.btn--block {
  width: 100%;
}

/* ==========================================================================
   14. Footer
   ========================================================================== */

.site-footer {
  background: var(--color-primary);
  color: var(--color-gray-200);
  padding-top: var(--space-16);
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  padding-bottom: var(--space-12);
}

/* Footer Brand */
.footer-brand {
  max-width: 320px;
}

.footer-brand__logo {
  margin-bottom: var(--space-4);
}

.footer-brand__logo img {
  height: 48px;
}

.footer-brand__text {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social__link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--color-gray-300);
  transition: all var(--duration-200);
}

.footer-social__link:hover {
  background: var(--color-secondary);
  color: var(--color-white);
  transform: translateY(-3px);
}

.footer-social__link svg {
  width: 20px;
  height: 20px;
}

/* Footer Columns */
.footer-column__title {
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-white);
  margin-bottom: var(--space-6);
}

.footer-column__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: left;
}

.footer-column__list li {
  text-align: left;
}

.footer-column__link {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  transition: color var(--duration-150);
  text-align: left;
  display: block;
}

.footer-column__link:hover {
  color: var(--color-white);
}

/* Footer Bottom */
.footer-bottom {
  padding: var(--space-6) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom__text {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

/* ==========================================================================
   15. Components (Icons, Badges, etc.)
   ========================================================================== */

/* Icon Container */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Hiking Icons */
.icon-hiking {
  width: 24px;
  height: 24px;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.badge--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.badge--secondary {
  background: var(--color-secondary);
  color: var(--color-white);
}

.badge--success {
  background: rgba(46, 125, 90, 0.1);
  color: var(--color-success);
}

/* Divider */
.divider {
  height: 1px;
  background: var(--color-gray-200);
  margin: var(--space-8) 0;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--duration-300);
  z-index: var(--z-fixed);
}

.back-to-top--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

.back-to-top svg {
  width: 24px;
  height: 24px;
}

/* ==========================================================================
   16. Animations
   ========================================================================== */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* Animation Classes */
.animate-fadeIn { animation: fadeIn var(--duration-500) var(--ease-out) forwards; }
.animate-fadeInUp { animation: fadeInUp var(--duration-500) var(--ease-out) forwards; }
.animate-fadeInDown { animation: fadeInDown var(--duration-500) var(--ease-out) forwards; }
.animate-slideInLeft { animation: slideInLeft var(--duration-500) var(--ease-out) forwards; }
.animate-slideInRight { animation: slideInRight var(--duration-500) var(--ease-out) forwards; }
.animate-scaleIn { animation: scaleIn var(--duration-300) var(--ease-out) forwards; }

/* Stagger Delays */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-500) var(--ease-out), transform var(--duration-500) var(--ease-out);
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   17. Utilities
   ========================================================================== */

/* Text */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-gray-500); }

/* Background */
.bg-white { background-color: var(--color-white); }
.bg-cream { background-color: var(--color-cream); }
.bg-primary { background-color: var(--color-primary); }
.bg-dark { background-color: var(--color-gray-900); }

/* Spacing */
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }

.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }
.py-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
.py-24 { padding-top: var(--space-24); padding-bottom: var(--space-24); }

/* Display */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.grid { display: grid; }

/* ==========================================================================
   18. Responsive
   ========================================================================== */

@media (max-width: 1200px) {
  .tour-content {
    grid-template-columns: 1fr 340px;
    gap: var(--space-8);
  }
  
  .tour-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }
}

@media (max-width: 1024px) {
  :root {
    --header-height: 72px;
  }
  
  .main-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .tour-content {
    grid-template-columns: 1fr;
  }
  
  .booking-card {
    position: static;
  }
  
  .tour-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tour-highlights {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.5rem;
  }
  
  .hero {
    min-height: 60vh;
    padding: var(--space-16) 0 var(--space-10);
  }
  
  .hero__title {
    font-size: var(--text-4xl);
  }
  
  .tour-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .tour-filters__categories {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: var(--space-4);
    margin-bottom: var(--space-4);
    -webkit-overflow-scrolling: touch;
  }
  
  .filter-pill {
    flex-shrink: 0;
  }
  
  .tour-nav__link {
    padding: var(--space-4);
    font-size: var(--text-xs);
  }
  
  .itinerary__item {
    padding-left: 60px;
  }
  
  .itinerary__day {
    width: 44px;
    height: 44px;
  }
  
  .itinerary__item::before {
    left: 21px;
    top: 48px;
  }
  
  .footer-main {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand {
    max-width: none;
  }
  
  .footer-social {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
  
  .hero__meta {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .tour-card__footer {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  
  .btn {
    width: 100%;
  }
  
  .booking-card__header,
  .booking-card__body,
  .booking-card__footer {
    padding: var(--space-4);
  }
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .tour-nav,
  .booking-card,
  .back-to-top {
    display: none !important;
  }
  
  .tour-content {
    display: block;
  }
  
  .tour-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}
/* Mobile Menu Styles */
.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    z-index: calc(var(--z-fixed) - 1);
    transform: translateX(-100%);
    transition: transform var(--duration-300) var(--ease-default);
    overflow-y: auto;
}

.mobile-menu--open {
    transform: translateX(0);
}

.mobile-menu__inner {
    padding: var(--space-6);
}

.mobile-nav__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.mobile-nav__list a {
    display: block;
    padding: var(--space-4);
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--color-gray-800);
    border-radius: var(--radius-lg);
    transition: all var(--duration-150);
}

.mobile-nav__list a:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
}

.mobile-menu__contact {
    margin-top: var(--space-8);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-gray-200);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.mobile-contact-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    color: var(--color-gray-700);
    font-size: var(--text-base);
}

.mobile-contact-link svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

body.menu-open {
    overflow: hidden;
}

/* Tour Loading Spinner */
.tour-loading {
    text-align: center;
    padding: var(--space-12);
}

.tour-loading__spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto var(--space-4);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* No Tours Found */
.no-tours-found {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-16);
    background: var(--color-white);
    border-radius: var(--radius-xl);
}

.no-tours-found__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-6);
    color: var(--color-gray-400);
}

.no-tours-found__icon svg {
    width: 100%;
    height: 100%;
}

.no-tours-found h3 {
    margin-bottom: var(--space-4);
}

.no-tours-found p {
    color: var(--color-gray-600);
    max-width: 400px;
    margin: 0 auto var(--space-6);
}

/* Star Rating */
.star-rating {
    display: inline-flex;
    gap: 2px;
}

.star {
    width: 16px;
    height: 16px;
}

.star--filled {
    color: var(--color-secondary);
}

.star--empty {
    color: var(--color-gray-300);
}

.star svg {
    width: 100%;
    height: 100%;
}

/* Tour Included Grid */
.tour-included-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.tour-included {
    background: var(--color-cream);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
}

.tour-included--no {
    background: #FEF2F2;
}

.tour-included__title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-lg);
    margin-bottom: var(--space-4);
}

.tour-included__icon {
    width: 24px;
    height: 24px;
}

.tour-included__icon--yes {
    color: var(--color-success);
}

.tour-included__icon--no {
    color: var(--color-error);
}

.tour-included__list ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.tour-included__list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-gray-700);
}

/* Tour Gallery */
.tour-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.tour-gallery__item {
    display: block;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.tour-gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-300);
}

.tour-gallery__item:hover img {
    transform: scale(1.05);
}

/* Pagination */
.pagination {
    margin-top: var(--space-12);
}

.pagination__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
}

.pagination__numbers {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.pagination__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-3);
    background: var(--color-white);
    border-radius: var(--radius-md);
    font-weight: 500;
    color: var(--color-gray-700);
    transition: all var(--duration-150);
}

.pagination__link:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.pagination__link--current {
    background: var(--color-primary);
    color: var(--color-white);
}

.pagination__link--prev,
.pagination__link--next {
    gap: var(--space-2);
}

.pagination__dots {
    color: var(--color-gray-400);
}

/* Responsive Additions */
@media (max-width: 768px) {
    .tour-included-grid {
        grid-template-columns: 1fr;
    }
    
    .tour-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr !important;
    }
    
    .tour-gallery {
        grid-template-columns: 1fr;
    }
    
    .hero__actions {
        flex-direction: column !important;
    }
}