/* ==========================================================================
   Change for India - Modern Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Variables)
   -------------------------------------------------------------------------- */
:root {
  /* Colors */
  --color-primary: #569abd;
  --color-primary-dark: #3f80a1;
  --color-primary-light: #7bb5d3;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-border: #e5e5e5;
  --color-white: #ffffff;

  /* Typography */
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;

  /* Container */
  --container-max: 1200px;
  --container-padding: 1.5rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

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

@media (min-width: 768px) {
  h1 { font-size: 3.5rem; }
  h2 { font-size: 2.5rem; }
  h3 { font-size: 1.75rem; }
}

/* --------------------------------------------------------------------------
   Layout - Container
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  padding: 1rem var(--container-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.logo:hover {
  color: var(--color-primary);
}

.nav-toggle {
  display: block;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-text);
}

.nav-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background-color: var(--color-white);
  box-shadow: var(--shadow-lg);
  padding: 5rem 2rem 2rem;
  transition: right var(--transition-normal);
  overflow-y: auto;
}

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

.nav-menu li {
  margin-bottom: 1rem;
}

.nav-menu a {
  display: block;
  padding: 0.5rem 0;
  color: var(--color-text);
  font-size: 1.1rem;
  border-bottom: 1px solid var(--color-border);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-primary);
}

.nav-menu .btn-donate {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: 4px;
  font-weight: 600;
  text-align: center;
  border: none;
}

.nav-menu .btn-donate:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
}

/* Mobile menu overlay */
.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

.nav-overlay.active {
  display: block;
}

/* Desktop Navigation */
@media (min-width: 1024px) {
  .navbar {
    padding: 1rem 2rem;
  }

  .nav-toggle {
    display: none;
  }

  .nav-menu {
    position: static;
    width: auto;
    max-width: none;
    height: auto;
    background-color: transparent;
    box-shadow: none;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }

  .nav-menu li {
    margin-bottom: 0;
  }

  .nav-menu a {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    border-bottom: none;
  }

  .nav-menu .btn-donate {
    margin-top: 0;
    margin-left: 0.5rem;
    padding: 0.5rem 1rem;
  }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  margin-top: 60px;
  padding: var(--spacing-xl) var(--container-padding);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.5));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  color: var(--color-white);
  font-size: 1.25rem;
  opacity: 0.95;
}

@media (min-width: 768px) {
  .hero {
    min-height: 70vh;
    margin-top: 70px;
  }
}

/* --------------------------------------------------------------------------
   Content Sections
   -------------------------------------------------------------------------- */
.section {
  padding: var(--spacing-lg) 0;
}

.section-alt {
  background-color: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .section {
    padding: var(--spacing-xl) 0;
  }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

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

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

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

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  background-color: var(--color-white);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

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

.card-title {
  margin-bottom: var(--spacing-sm);
}

/* Feature Cards */
.features {
  display: grid;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .features {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  text-align: center;
  padding: var(--spacing-md);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

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

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

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

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

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

/* --------------------------------------------------------------------------
   Gallery
   -------------------------------------------------------------------------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  aspect-ratio: 4/3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-sm);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: var(--color-white);
  font-size: 0.875rem;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.gallery-item:hover .gallery-caption {
  opacity: 1;
}

@media (min-width: 768px) {
  .gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .gallery {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Lists
   -------------------------------------------------------------------------- */
.list-styled {
  margin-left: var(--spacing-sm);
}

.list-styled li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}

.list-styled li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

/* --------------------------------------------------------------------------
   Quote / Blockquote
   -------------------------------------------------------------------------- */
.quote {
  position: relative;
  padding: var(--spacing-md);
  padding-left: var(--spacing-lg);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-text-light);
  border-left: 4px solid var(--color-primary);
  margin: var(--spacing-md) 0;
}

.quote-author {
  display: block;
  margin-top: var(--spacing-sm);
  font-size: 1rem;
  font-style: normal;
  font-weight: 600;
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Tables
   -------------------------------------------------------------------------- */
.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-md) 0;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background-color: var(--color-bg-alt);
  font-weight: 600;
}

tr:hover {
  background-color: var(--color-bg-alt);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--color-text);
  color: var(--color-white);
  padding: var(--spacing-lg) 0;
}

.footer-content {
  display: grid;
  gap: var(--spacing-md);
}

.footer h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.footer a {
  color: var(--color-primary-light);
}

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

.footer-bottom {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Blog / Updates
   -------------------------------------------------------------------------- */
.blog-post {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

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

.blog-date {
  display: inline-block;
  color: var(--color-text-light);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xs);
}

.blog-title {
  margin-bottom: var(--spacing-sm);
}

.blog-excerpt {
  color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   Donation Page Styles
   -------------------------------------------------------------------------- */
.donate-options {
  display: grid;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.donate-card {
  text-align: center;
  padding: var(--spacing-lg);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  transition: all var(--transition-normal);
}

.donate-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.donate-amount {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.donate-frequency {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
  .donate-options {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }

.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

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

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

/* Stagger animations */
.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.2s; }
.fade-in:nth-child(3) { animation-delay: 0.3s; }
.fade-in:nth-child(4) { animation-delay: 0.4s; }