@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;500;700;800&display=swap');

:root {
  /* Colors */
  --primary: #1e3a8a; /* Deep blue */
  --primary-light: #3b82f6;
  --secondary: #0f172a; /* Slate 900 */
  --accent: #f59e0b; /* Amber */
  --accent-light: #fef3c7;
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #334155;
  --text-muted: #64748b;
  --white: #ffffff;
  
  /* Layout */
  --max-width: 1200px;
  --border-radius: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --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);
}

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

html {
  scroll-behavior: smooth;
}

html, body {
  overflow-x: hidden;
  max-width: 100vw;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  color: var(--text-main);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  color: var(--secondary);
  font-weight: 700;
  line-height: 1.2;
}

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

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Typography Utilities --- */
.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 3rem;
}

/* --- Navigation --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

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

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-wrapper img {
  height: 50px;
  width: auto;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

.logo-wrapper span {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--primary);
  letter-spacing: -0.5px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav a {
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-main);
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--primary);
  transition: var(--transition);
}

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

nav a:hover::after, nav a.active::after {
  width: 100%;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 30px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: 'Outfit', sans-serif;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(30, 58, 138, 0.39);
}

.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(30, 58, 138, 0.4);
  color: var(--white);
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.39);
}

.btn-accent:hover {
  background: #d97706;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
  color: var(--white);
}

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

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--secondary);
  cursor: pointer;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 80px;
  color: var(--white);
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(15,23,42,0.85), rgba(30,58,138,0.75)), url('images/hero_clean.png') center/cover no-repeat;
  z-index: 0;
  animation: heroZoom 20s infinite alternate linear;
}

@keyframes heroZoom {
  0% { transform: scale(1); }
  100% { transform: scale(1.1); }
}

.hero-content {
  max-width: 800px;
  z-index: 2;
  position: relative;
}

.hero h1 {
  font-size: 4rem;
  color: var(--white);
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
  max-width: 600px;
}

.hero-subtitle {
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}

.hero-text {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.donation-content {
  padding: 4rem 3rem;
}

.donation-qr {
  background: var(--primary-light);
  padding: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
}

/* --- Sections --- */
.section {
  padding: 6rem 0;
}

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

/* --- Cards & Grids --- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-md);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 1px solid rgba(0,0,0,0.03);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 64px;
  height: 64px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.card p {
  color: var(--text-muted);
}


/* --- Image Cards --- */
.image-card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.image-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.image-card-img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  transition: var(--transition);
}

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

.image-card-content {
  padding: 1.5rem;
}

.image-card-content h3 {
  margin-bottom: 0.5rem;
}

/* --- Stats Section --- */
.stats-section {
  background: var(--primary);
  color: var(--white);
  padding: 4rem 0;
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-family: 'Outfit', sans-serif;
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 0.5rem;
  display: block;
}

.stat-label {
  font-size: 1.1rem;
  font-weight: 500;
  opacity: 0.9;
}

/* --- Footer --- */
footer {
  background: var(--secondary);
  color: var(--white);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-about h3 {
  color: var(--white);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-about img {
  height: 40px;
  border-radius: 50%;
  background: var(--white);
  padding: 2px;
}

.footer-about p {
  opacity: 0.8;
  margin-bottom: 1.5rem;
}

.footer-links h4 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  opacity: 0.8;
}

.footer-links a:hover {
  opacity: 1;
  color: var(--accent);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  opacity: 0.7;
  font-size: 0.9rem;
}

/* --- Utilities & Animations --- */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }

.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px) scale(0.95);
  transition: opacity 0.8s ease-out, transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* Responsive */
@media (max-width: 992px) {
  .hero h1 { font-size: 3rem; }
}

@media (max-width: 768px) {
  .mobile-menu-btn { display: block; }
  
  nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--white);
    padding: 20px;
    box-shadow: var(--shadow-md);
    transform: translateY(-20px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  
  nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  nav ul {
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
  }
  
  .hero h1 { font-size: 2.2rem; }
  .section { padding: 4rem 0; }
  .section-title { font-size: 2rem; }
  
  .hero-subtitle { font-size: 1.1rem; }
  .hero-text { font-size: 1rem; }
  .hero-actions { flex-direction: column; width: 100%; max-width: 300px; margin: 0 auto; }
  .hero-actions .btn { width: 100%; padding: 12px; }
  .donation-content { padding: 2rem 1rem; }
  .donation-qr { padding: 1.5rem 1rem; }
  .grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .grid-4 { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .stat-num { font-size: 2.2rem; }
}

/* Profile / Team Cards */
.team-card {
  text-align: center;
  padding: 2rem;
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.team-img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1.5rem;
  border: 4px solid var(--accent-light);
}

.team-role {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

/* Page Header (for inner pages) */
.page-header {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, var(--primary), #111827);
  color: var(--white);
  text-align: center;
}

.page-header h1 {
  color: var(--white);
  font-size: 3rem;
  margin-bottom: 1rem;
}

.page-header p {
  opacity: 0.9;
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}