/* ============================================
   WhenToLanka Design System
   The Right Place at the Right Time
   ============================================ */

/* ============================================
   CSS Variables - Sri Lankan Color Palette
   ============================================ */
:root {
  /* Primary Colors */
  --color-primary-gold: #D4AF37;
  --color-primary-gold-light: #E8C968;
  --color-primary-gold-dark: #B8941F;

  /* Secondary Colors */
  --color-ocean-blue: #1E3A5F;
  --color-ocean-blue-light: #2A5082;
  --color-ocean-blue-dark: #0F1D2F;

  /* Accent Colors */
  --color-emerald-green: #50C878;
  --color-sunset-orange: #FF6B35;
  --color-cloud-gray: #A8A8A8;

  /* Seasonal Indicators */
  --color-peak-season: var(--color-primary-gold);
  --color-monsoon-season: var(--color-cloud-gray);
  --color-year-round: var(--color-emerald-green);

  /* Safety Flag Colors */
  --color-safe-green: #22C55E;
  --color-caution-yellow: #EAB308;
  --color-danger-red: #EF4444;

  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-off-white: #F8F9FA;
  --color-light-gray: #E5E7EB;
  --color-medium-gray: #6B7280;
  --color-dark-gray: #374151;
  --color-black: #111827;

  /* Gradients */
  --gradient-sunset: linear-gradient(135deg, var(--color-sunset-orange) 0%, var(--color-primary-gold) 100%);
  --gradient-ocean: linear-gradient(135deg, var(--color-ocean-blue) 0%, var(--color-ocean-blue-light) 100%);
  --gradient-hero: linear-gradient(135deg, var(--color-ocean-blue-dark) 0%, var(--color-ocean-blue) 50%, var(--color-primary-gold-dark) 100%);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', Georgia, 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 */

  /* Spacing */
  --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 */

  /* Breakpoints (for reference in media queries) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;

  /* 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-glow: 0 0 20px rgba(212, 175, 55, 0.3);

  /* Border Radius */
  --radius-sm: 0.25rem;
  /* 4px */
  --radius-md: 0.5rem;
  /* 8px */
  --radius-lg: 1rem;
  /* 16px */
  --radius-xl: 1.5rem;
  /* 24px */
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* Z-index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-tooltip: 600;
}

/* ============================================
   DARK MODE VARIABLES
   ============================================ */
body.dark-mode {
  --color-off-white: #1a1a1a;
  --color-white: #0f0f0f;
  --color-dark-blue: #e8e8e8;
  --color-dark-gray: #d0d0d0;
  --color-black: #ffffff;
  --color-medium-gray: #b8b8b8;
  --color-cloud-gray: #4a4a4a;
  --color-light-gray: #2a2a2a;
  --gradient-ocean: linear-gradient(135deg, #2a4a6f 0%, #1a2f45 100%);
  --gradient-sunset: linear-gradient(135deg, #c44d00 0%, #903800 100%);
  --gradient-hero: linear-gradient(135deg, #1a2a3a 0%, #2a3a4a 50%, #3a2a1a 100%);
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-dark-gray);
  background-color: var(--color-off-white);
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ============================================
   Typography
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-black);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--text-5xl);
}

h2 {
  font-size: var(--text-4xl);
}

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);
  line-height: 1.7;
}

a {
  color: var(--color-ocean-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-gold);
}

/* ============================================
   Layout Utilities
   ============================================ */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.section {
  padding: var(--space-16) 0;
}

.section-sm {
  padding: var(--space-8) 0;
}

.section-lg {
  padding: var(--space-20) 0;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) 0;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  background: var(--gradient-sunset);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  gap: var(--space-6);
  list-style: none;
  align-items: center;
}

.nav-link {
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
  padding: var(--space-2) var(--space-3);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: var(--color-primary-gold);
  transition: transform var(--transition-base);
}

.nav-link:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.hamburger span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--color-ocean-blue);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 60px;
    right: -100%;
    flex-direction: column;
    background: var(--color-white);
    width: 80%;
    max-width: 300px;
    height: calc(100vh - 60px);
    padding: var(--space-8) var(--space-4);
    box-shadow: var(--shadow-xl);
    transition: right var(--transition-base);
    align-items: flex-start;
  }

  .nav-menu.active {
    right: 0;
  }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  background: var(--gradient-hero);
  color: var(--color-white);
  padding: var(--space-20) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
  opacity: 0.3;
  animation: float 20s linear infinite;
}

@keyframes float {
  0% {
    transform: translateY(0) translateX(0);
  }

  100% {
    transform: translateY(-100px) translateX(100px);
  }
}

.hero-content {
  position: relative;
  z-index: var(--z-base);
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-tagline {
  font-size: var(--text-6xl);
  font-family: var(--font-display);
  margin-bottom: var(--space-6);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
  font-size: var(--text-xl);
  margin-bottom: var(--space-8);
  opacity: 0.95;
  animation: fadeInUp 1s ease-out 0.2s backwards;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  font-size: var(--text-base);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary-gold);
  color: var(--color-ocean-blue-dark);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background: var(--color-white);
  color: var(--color-ocean-blue);
  box-shadow: var(--shadow-md);
}

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

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

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

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

.card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-5px);
  border-color: rgba(212, 175, 55, 0.2);
}

.card-glass {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--color-white);
}

.card-glass:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(212, 175, 55, 0.6);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.card-glass h3 {
  color: var(--color-primary-gold);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.card-glass p,
.card-glass div,
.card-glass ul,
.card-glass li {
  color: var(--color-white);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.card-glass strong {
  color: rgba(255, 255, 255, 0.95);
  font-weight: 600;
}

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

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ============================================
   Month Slider
   ============================================ */
.month-slider {
  padding: var(--space-8) 0;
  margin: var(--space-8) 0;
}

.month-track {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding: var(--space-4);
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary-gold) var(--color-light-gray);
}

.month-track::-webkit-scrollbar {
  height: 6px;
}

.month-track::-webkit-scrollbar-track {
  background: var(--color-light-gray);
  border-radius: var(--radius-full);
}

.month-track::-webkit-scrollbar-thumb {
  background: var(--color-primary-gold);
  border-radius: var(--radius-full);
}

.month-item {
  flex-shrink: 0;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  min-width: 100px;
  box-shadow: var(--shadow-sm);
}

.month-item:hover {
  background: var(--color-off-white);
  box-shadow: var(--shadow-md);
}

.month-item.active {
  background: var(--color-primary-gold);
  color: var(--color-white);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: scale(1.05);
}

/* ============================================
   Map Container
   ============================================ */
.map-container {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  margin: var(--space-8) 0;
}

.sri-lanka-map {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  display: block;
}

.map-region {
  fill: var(--color-light-gray);
  stroke: var(--color-white);
  stroke-width: 2;
  cursor: pointer;
  transition: all var(--transition-base);
}

.map-region:hover {
  filter: brightness(1.1);
  stroke: var(--color-primary-gold);
  stroke-width: 3;
}

.map-region.peak-season {
  fill: var(--color-primary-gold);
  animation: pulse 2s ease-in-out infinite;
}

.map-region.monsoon-season {
  fill: var(--color-cloud-gray);
}

.map-region.year-round {
  fill: var(--color-emerald-green);
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.8;
  }
}

/* ============================================
   Widgets
   ============================================ */
.widget {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-6);
  border: 1px solid transparent;
  transition: all var(--transition-base);
}

.widget:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(212, 175, 55, 0.2);
}

.widget-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-light-gray);
}

.widget-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-sunset);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: var(--text-xl);
  box-shadow: var(--shadow-sm);
}

.widget-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin: 0;
}

/* Alert Badges */
.alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 500;
}

.alert-warning {
  background: rgba(234, 179, 8, 0.1);
  color: #92400E;
  border-left: 4px solid var(--color-caution-yellow);
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  color: #1E3A8A;
  border-left: 4px solid #3B82F6;
}

/* Safety Indicators */
.safety-flag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-sm);
}

.flag-green {
  background: rgba(34, 197, 94, 0.1);
  color: #166534;
  border: 2px solid var(--color-safe-green);
}

.flag-yellow {
  background: rgba(234, 179, 8, 0.1);
  color: #92400E;
  border: 2px solid var(--color-caution-yellow);
}

.flag-red {
  background: rgba(239, 68, 68, 0.1);
  color: #991B1B;
  border: 2px solid var(--color-danger-red);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-ocean-blue-dark);
  color: var(--color-white);
  padding: var(--space-12) 0 var(--space-6) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-section h3 {
  color: var(--color-primary-gold);
  margin-bottom: var(--space-4);
}

.footer-link {
  color: var(--color-white);
  opacity: 0.8;
  transition: opacity var(--transition-fast);
  display: block;
  margin-bottom: var(--space-2);
}

.footer-link:hover {
  opacity: 1;
  color: var(--color-primary-gold);
}

.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  opacity: 0.7;
  font-size: var(--text-sm);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  h1 {
    font-size: var(--text-4xl);
  }

  h2 {
    font-size: var(--text-3xl);
  }

  h3 {
    font-size: var(--text-2xl);
  }

  .hero-tagline {
    font-size: var(--text-4xl);
  }

  .section {
    padding: var(--space-8) 0;
  }

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

@media (max-width: 480px) {
  .hero-tagline {
    font-size: var(--text-3xl);
  }

  .container {
    padding: 0 var(--space-3);
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-1 {
  margin-top: var(--space-1);
}

.mt-2 {
  margin-top: var(--space-2);
}

.mt-4 {
  margin-top: var(--space-4);
}

.mt-6 {
  margin-top: var(--space-6);
}

.mt-8 {
  margin-top: var(--space-8);
}

.mb-1 {
  margin-bottom: var(--space-1);
}

.mb-2 {
  margin-bottom: var(--space-2);
}

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

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

.mb-8 {
  margin-bottom: var(--space-8);
}

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.gap-4 {
  gap: var(--space-4);
}

.hidden {
  display: none;
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.slide-in {
  animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(-20px);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}