/* Modern Exhibition Website CSS Framework */
/* Clean, Minimal, Aesthetic Design with Dynamic Interactions */

/* ===== CSS Variables & Root Styles ===== */
:root {
  /* Color Palette (Indian Flag Theme) */
  --primary-color: #ff9933;        /* Saffron */
  --primary-dark: #050301;         /* Darker saffron */
  --primary-light: #bd8d44;        /* Lighter saffron */

  --secondary-color: #138808;      /* Green */
  --accent-color: #0066cc;         /* Subtle blue accent (like Ashoka Chakra) */
  --danger-color: #d32f2f;         /* Red, sparingly for errors */
  --success-color: #22c55e;        /* Keep a vibrant green for success */

  /* Neutral Colors (keep light neutrals) */
  --white: #ffffff;
  --gray-50: #fefcf5;              /* slightly warm off-white */
  --gray-100: #f7f5ed;
  --gray-200: #e5e3d4;
  --gray-300: #d1cfc0;
  --gray-400: #9ca38f;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Gradients (subtle Indian flag vibes) */
  --gradient-primary: linear-gradient(135deg, #ff9933 0%, #ffffff 100%);
  --gradient-secondary: linear-gradient(135deg, #ffffff 0%, #138808 100%);
  --gradient-success: linear-gradient(135deg, #138808 0%, #22c55e 100%);
  --gradient-warning: linear-gradient(135deg, #ff9933 0%, #ffb84d 100%);


  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-secondary: 'Poppins', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* Z-Index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--gray-50);
  overflow-x: hidden;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.2;
  color: var(--gray-900);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-md);
  color: var(--gray-600);
}

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

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

/* ===== Layout Components ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }

.flex {
  display: flex;
}

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

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

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

.justify-between {
  justify-content: space-between;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* ===== Header & Navigation ===== */
.header {
  background: var(--white);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: all var(--transition-normal);
}

.header.scrolled {
  box-shadow: var(--shadow-lg);
}

/* ===== Stats Section ===== */
.stats-container {
  display: flex;
  justify-content: space-around; /* distributes items evenly */
  flex-wrap: nowrap;             /* stay in a single line */
  gap: var(--spacing-md);
  overflow-x: auto;              /* horizontal scroll on narrow screens */
  padding: var(--spacing-md) 0;
}

.stat-card {
  background: var(--primary-color);
  color: var(--white);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-weight: 600;
  text-align: center;
  min-width: 100px;
  box-shadow: var(--shadow-md);
  pointer-events: none; /* non-clickable */
  transition: transform var(--transition-fast);
}

.stat-card span {
  display: block;
  font-weight: 400;
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

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

.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
}

.nav-link {
  color: var(--gray-600);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

.nav-link.active {
  color: var(--primary-color);
  background-color: var(--primary-light);
}

/* ===== Search Bar ===== */
.search-container {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
}

.search-bar {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-xl);
  padding-left: 3rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-full);
  font-size: 1rem;
  background: var(--white);
  transition: all var(--transition-normal);
}

.search-bar:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgb(99 102 241 / 0.1);
}

.search-icon {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
  font-size: 1.2rem;
}

/* ===== Cards ===== */
.card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

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

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--gray-200);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--gray-200);
  background: var(--gray-50);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

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

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}

.btn-secondary:hover {
  background: var(--gray-200);
}

.btn-success {
  background: var(--success-color);
  color: var(--white);
}

.btn-danger {
  background: var(--danger-color);
  color: var(--white);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.75rem;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
}

/* ===== Like/Vote Button ===== */
.like-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--gray-100);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-full);
  color: var(--gray-600);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.like-btn:hover {
  background: var(--gray-200);
  border-color: var(--gray-300);
}

.like-btn.liked {
  background: var(--danger-color);
  border-color: var(--danger-color);
  color: var(--white);
}

.like-btn.liked:hover {
  background: #dc2626;
  transform: scale(1.05);
}

.like-icon {
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
}

.like-btn:hover .like-icon {
  transform: scale(1.2);
}

.like-count {
  font-weight: 600;
  min-width: 1.5rem;
  text-align: center;
}

/* ===== Leaderboard ===== */
.leaderboard {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.leaderboard-header {
  background: var(--gradient-primary);
  color: var(--white);
  padding: var(--spacing-lg);
  text-align: center;
}

.leaderboard-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--gray-200);
  transition: background-color var(--transition-fast);
}

.leaderboard-item:hover {
  background: var(--gray-50);
}

.leaderboard-item:last-child {
  border-bottom: none;
}

.leaderboard-rank {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-full);
  background: var(--gray-200);
  color: var(--gray-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
}

.leaderboard-rank.top-1 {
  background: #ffd700;
  color: var(--gray-800);
}

.leaderboard-rank.top-2 {
  background: #c0c0c0;
  color: var(--gray-800);
}

.leaderboard-rank.top-3 {
  background: #cd7f32;
  color: var(--white);
}

.leaderboard-info {
  flex: 1;
}

.leaderboard-name {
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.leaderboard-category {
  font-size: 0.875rem;
  color: var(--gray-500);
}

.leaderboard-votes {
  font-weight: 600;
  color: var(--primary-color);
}

/* ===== Social Media Feed ===== */
.social-feed {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.social-feed-header {
  background: var(--gradient-secondary);
  color: var(--white);
  padding: var(--spacing-lg);
  text-align: center;
}

.social-feed-content {
  max-height: 400px;
  overflow-y: auto;
  padding: var(--spacing-lg);
}

.social-post {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
  transition: background-color var(--transition-fast);
}

.social-post:hover {
  background: var(--gray-50);
}

.social-post:last-child {
  border-bottom: none;
}

.social-avatar {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 600;
  flex-shrink: 0;
}

.social-content {
  flex: 1;
}

.social-username {
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.social-text {
  color: var(--gray-600);
  margin-bottom: var(--spacing-sm);
}

.social-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--gray-500);
}

.social-time {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* ===== Schedule/Itinerary ===== */
.schedule {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.schedule-header {
  background: var(--gradient-success);
  color: var(--white);
  padding: var(--spacing-lg);
  text-align: center;
}

.schedule-item {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--gray-200);
  transition: all var(--transition-fast);
}

.schedule-item:hover {
  background: var(--gray-50);
  transform: translateX(4px);
}

.schedule-item:last-child {
  border-bottom: none;
}

.schedule-time {
  min-width: 80px;
  text-align: center;
  padding: var(--spacing-sm);
  background: var(--primary-color);
  color: var(--white);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
}

.schedule-content {
  flex: 1;
}

.schedule-title {
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.schedule-location {
  color: var(--gray-500);
  font-size: 0.875rem;
}

.schedule-description {
  color: var(--gray-600);
  margin-top: var(--spacing-sm);
}

/* ===== Stall Cards ===== */
.stall-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
}

.stall-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.stall-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.stall-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.stall-content {
  padding: var(--spacing-lg);
}

.stall-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

.stall-category {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.stall-description {
  color: var(--gray-600);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.stall-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
}

/* ===== Animations ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -30px, 0);
  }
  70% {
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

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

.animate-slide-in {
  animation: slideIn 0.6s ease-out;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

.animate-bounce {
  animation: bounce 1s;
}

/* ===== Loading States ===== */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--gray-200);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

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

.skeleton {
  background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
  .grid-cols-4 { grid-template-columns: repeat(3, 1fr); }
  .grid-cols-5 { grid-template-columns: repeat(3, 1fr); }
  .grid-cols-6 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-5 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-6 { grid-template-columns: repeat(2, 1fr); }
  
  .nav-menu {
    display: none;
  }
  
  .stall-grid {
    grid-template-columns: 1fr;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .grid-cols-2 { grid-template-columns: 1fr; }
  .grid-cols-3 { grid-template-columns: 1fr; }
  .grid-cols-4 { grid-template-columns: 1fr; }
  .grid-cols-5 { grid-template-columns: 1fr; }
  .grid-cols-6 { grid-template-columns: 1fr; }
  
  .schedule-item {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .schedule-time {
    align-self: flex-start;
  }
}

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

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

.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }
.bg-success { background-color: var(--success-color); }
.bg-danger { background-color: var(--danger-color); }
.bg-white { background-color: var(--white); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.hidden { display: none; }
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
} 








/* Row to place sliders horizontally */
.slider-row {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin: 30px auto;
}

.slider-container {
  width: 70vh;
  height: 70vh;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.slider-wrapper {
  width: 100%;
  height: 100%;
  position: relative;
}

.slide {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
}

.slide.active {
  opacity: 1;
}

.slider-caption {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.6);
  color: white;
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}