/* ========================================
   ZIA E MADANI TRAVELS - DESIGN SYSTEM
   Modern Premium Travel Website
   Version: 2.0
   Date: February 2026
   ======================================== */

/* =====================================
   1. CSS VARIABLES & COLOR PALETTE
   ===================================== */

:root {
  /* Primary Brand Colors */
  --color-kashmir-green: #006B3D;
  --color-kashmir-green-dark: #004D2B;
  --color-kashmir-green-light: #00874D;
  
  --color-sacred-gold: #D4AF37;
  --color-sacred-gold-dark: #B8941F;
  --color-sacred-gold-light: #E6C55E;
  
  --color-deep-teal: #004D40;
  --color-sky-blue: #4A90E2;
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-warm-white: #FAFBFC;
  --color-soft-gray: #F5F7FA;
  --color-light-gray: #E5E7EB;
  --color-medium-gray: #9CA3AF;
  --color-dark-gray: #4B5563;
  
  /* Text Colors */
  --color-text-primary: #1A202C;
  --color-text-secondary: #718096;
  --color-text-light: #A0AEC0;
  
  /* Semantic Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-kashmir-green) 0%, var(--color-deep-teal) 100%);
  --gradient-gold: linear-gradient(135deg, var(--color-sacred-gold-dark) 0%, var(--color-sacred-gold-light) 100%);
  --gradient-light: linear-gradient(135deg, var(--color-warm-white) 0%, var(--color-white) 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.7) 100%);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Spacing System (8px base unit) */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.5rem;    /* 24px */
  --space-6: 2rem;      /* 32px */
  --space-8: 3rem;      /* 48px */
  --space-10: 4rem;     /* 64px */
  --space-12: 6rem;     /* 96px */
  --space-16: 8rem;     /* 128px */
  
  /* Border Radius */
  --radius-sm: 0.375rem;   /* 6px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  
  /* Font Sizes */
  --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 */
  
  /* Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* =====================================
   2. RESET & BASE STYLES
   ===================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* =====================================
   3. TYPOGRAPHY SYSTEM
   ===================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: clamp(var(--text-4xl), 5vw, var(--text-7xl));
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  letter-spacing: -0.015em;
}

h3 {
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
}

h4 {
  font-size: clamp(var(--text-xl), 2.5vw, var(--text-3xl));
}

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

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

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.text-display {
  font-family: var(--font-display);
}

.text-body {
  font-family: var(--font-primary);
}

/* =====================================
   4. BUTTON COMPONENTS
   ===================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  user-select: none;
}

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

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

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
  background: var(--gradient-gold);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

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

.btn-outline:hover:not(:disabled) {
  background: var(--color-kashmir-green);
  color: var(--color-white);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--color-kashmir-green);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-soft-gray);
}

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

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

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

/* =====================================
   5. CARD COMPONENTS
   ===================================== */

.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card-image {
  transform: scale(1.05);
}

.card-body {
  padding: var(--space-6);
}

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

.card-text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

/* Package Card Specific */
.package-card {
  position: relative;
  overflow: hidden;
}

.package-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-sacred-gold);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  border-radius: var(--radius-full);
  z-index: 10;
}

.package-rating {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--color-sacred-gold);
}

.package-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--color-light-gray);
  border-bottom: 1px solid var(--color-light-gray);
}

.package-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.package-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.package-price-value {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--color-kashmir-green);
}

.package-price-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* =====================================
   6. FORM COMPONENTS
   ===================================== */

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

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

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  border: 2px solid var(--color-light-gray);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-kashmir-green);
  box-shadow: 0 0 0 3px rgba(0, 107, 61, 0.1);
}

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

.form-error {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-error);
}

/* =====================================
   7. UTILITY CLASSES
   ===================================== */

/* Container */
.container-custom {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 640px) {
  .container-custom {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .container-custom {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

/* Section Spacing */
.section {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

@media (min-width: 1024px) {
  .section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Responsive Grid */
.grid-auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

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

/* Flexbox Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

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

/* Display */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }

/* =====================================
   8. GLASSMORPHISM EFFECTS
   ===================================== */

.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
}

.glass-dark {
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* =====================================
   9. ANIMATIONS
   ===================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  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 zoomIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease-out;
}

.animate-slideInLeft {
  animation: slideInLeft 0.6s ease-out;
}

.animate-slideInRight {
  animation: slideInRight 0.6s ease-out;
}

.animate-zoomIn {
  animation: zoomIn 0.5s ease-out;
}

/* Scroll Animation Classes */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

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

/* =====================================
   10. RESPONSIVE BREAKPOINTS
   ===================================== */

/* Mobile: 320px - 767px (default) */

/* Tablet: 768px - 1023px */
@media (min-width: 768px) {
  .grid-md-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-md-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* Desktop: 1024px - 1439px */
@media (min-width: 1024px) {
  .grid-lg-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-lg-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* Large Desktop: 1440px+ */
@media (min-width: 1440px) {
  .container-custom {
    max-width: 1440px;
  }
}

/* =====================================
   11. ACCESSIBILITY
   ===================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus Styles */
*:focus-visible {
  outline: 2px solid var(--color-kashmir-green);
  outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* =====================================
   12. PRINT STYLES
   ===================================== */

@media print {
  body {
    background: white;
  }
  
  .no-print {
    display: none !important;
  }
  
  a {
    text-decoration: underline;
  }
}