/* HTMAA 2025 - Aditi Ramakrishnan - Pastel Theme */

:root {
  /* Pastel Color Palette */
  --pastel-pink: #f8d7da;
  --pastel-blue: #d1ecf1;
  --pastel-lavender: #e2d9f3;
  --pastel-mint: #d4edda;
  --pastel-peach: #fff3cd;
  --pastel-coral: #f5c6cb;
  --pastel-sky: #b8daff;
  --pastel-sage: #c3e6cb;
  
  /* Neutral Colors */
  --white: #ffffff;
  --light-gray: #f8f9fa;
  --medium-gray: #6c757d;
  --dark-gray: #495057;
  --text-primary: #2d3748;
  --text-secondary: #4a5568;
  
  /* Fonts */
  --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-heading: 'Georgia', serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Border radius */
  --radius: 12px;
  --radius-sm: 6px;
}

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

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--pastel-sky) 0%, var(--pastel-lavender) 100%);
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

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

.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

/* Header */
.header {
  background: var(--white);
  padding: var(--spacing-lg) 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  margin-bottom: var(--spacing-xl);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text-primary);
  text-decoration: none;
}

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

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
}

.nav a:hover {
  background: var(--pastel-lavender);
  color: var(--text-primary);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--spacing-xl) 0;
  background: linear-gradient(45deg, var(--pastel-mint), var(--pastel-blue));
  margin-bottom: var(--spacing-xl);
  border-radius: var(--radius);
}

.hero h1 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Weekly Grid */
.weeks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.week-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
  border-left: 4px solid var(--pastel-pink);
}

.week-card:nth-child(even) {
  border-left-color: var(--pastel-blue);
}

.week-card:nth-child(3n) {
  border-left-color: var(--pastel-lavender);
}

.week-card:nth-child(4n) {
  border-left-color: var(--pastel-mint);
}

.week-card:nth-child(5n) {
  border-left-color: var(--pastel-peach);
}

.week-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.week-number {
  font-size: 0.9rem;
  color: var(--medium-gray);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.week-title {
  font-size: 1.3rem;
  margin: var(--spacing-xs) 0;
  color: var(--text-primary);
}

.week-preview {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Weekly Page Styles */
.week-header {
  background: linear-gradient(135deg, var(--pastel-peach), var(--pastel-coral));
  padding: var(--spacing-xl);
  border-radius: var(--radius);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.week-nav {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.week-nav a {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--white);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.week-nav a:hover {
  background: var(--pastel-lavender);
}

.content-section {
  margin-bottom: var(--spacing-xl);
}

.content-section h2 {
  color: var(--text-primary);
  border-bottom: 2px solid var(--pastel-lavender);
  padding-bottom: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

/* Media Gallery */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.media-item {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.media-item:hover {
  transform: scale(1.05);
}

.media-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.placeholder-media {
  background: linear-gradient(45deg, var(--pastel-mint), var(--pastel-blue));
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-style: italic;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--pastel-lavender);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn:hover {
  background: var(--pastel-pink);
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--pastel-blue);
}

.btn-primary:hover {
  background: var(--pastel-sky);
}

/* Footer */
.footer {
  background: var(--white);
  padding: var(--spacing-lg) 0;
  text-align: center;
  color: var(--text-secondary);
  margin-top: var(--spacing-xl);
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .header-content {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .weeks-grid {
    grid-template-columns: 1fr;
  }
  
  .week-nav {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .media-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}

/* Lightbox Styles */
.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  animation: fadeIn 0.3s ease forwards;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-image {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  color: white;
  text-align: center;
  margin-top: var(--spacing-sm);
  font-size: 1.1rem;
  max-width: 600px;
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: -40px;
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}

.lightbox-prev,
.lightbox-next {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: white;
  font-size: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.3s ease;
  pointer-events: all;
}

.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255, 255, 255, 0.3);
}

.lightbox-prev {
  margin-left: -60px;
}

.lightbox-next {
  margin-right: -60px;
}

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

/* Enhanced Media Grid with Cursor Pointer */
.media-item img {
  cursor: pointer;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.media-item img:hover {
  transform: scale(1.02);
  opacity: 0.9;
}

/* Print Styles */
@media print {
  .header, .footer, .week-nav, .lightbox-overlay {
    display: none;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid var(--medium-gray);
  }
}