/* ===== CSS Variables ===== */
:root {
  --color-primary: #1a6b4a;
  --color-primary-dark: #145538;
  --color-primary-light: #e8f5ef;
  --color-accent: #e8a838;
  --color-accent-dark: #c48a1f;
  --color-text: #2d3436;
  --color-text-light: #636e72;
  --color-bg: #ffffff;
  --color-bg-alt: #f8faf9;
  --color-border: #dfe6e9;
  --font-heading: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
  --radius: 8px;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* ===== Layout ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Header & Navigation ===== */
header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary);
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
}

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

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

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

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

/* ===== Hero Section ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: 5rem 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.15rem;
  opacity: 0.92;
  max-width: 640px;
  margin: 0 auto 2rem;
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

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

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

.btn-outline {
  background: transparent;
  color: white;
  border-color: white;
}

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

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

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

/* ===== Sections ===== */
section {
  padding: 4rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.section-title p {
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto;
}

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

/* ===== Cards Grid ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s, transform 0.2s;
}

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

.card-icon {
  width: 56px;
  height: 56px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary-dark);
}

.card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ===== Stats ===== */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.5rem;
  color: var(--color-primary);
  font-weight: 800;
}

.stat-item p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ===== Page Header (inner pages) ===== */
.page-header {
  background: var(--color-primary-light);
  padding: 3rem 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2.25rem;
  color: var(--color-primary-dark);
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== About Page ===== */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text h2 {
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.about-text p {
  color: var(--color-text-light);
  margin-bottom: 1rem;
}

.about-image {
  background: var(--color-primary-light);
  border-radius: var(--radius);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.values-list {
  list-style: none;
  display: grid;
  gap: 1rem;
}

.values-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.values-list li span {
  font-size: 1.25rem;
}

/* ===== Contact Page ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info h3 {
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 0.15rem;
}

.contact-item p {
  font-weight: 500;
}

.contact-form {
  background: var(--color-bg);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ===== Donation Section ===== */
.donation-section-card {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2rem;
  background: linear-gradient(135deg, #ffffff 0%, #f3fbf7 100%);
  border: 1px solid #dcefe5;
  border-radius: 22px;
  box-shadow: 0 16px 40px rgba(26, 107, 74, 0.12);
  padding: 2rem;
  align-items: center;
  overflow: hidden;
  position: relative;
}

.donation-section-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(26, 107, 74, 0.06), transparent, rgba(232, 168, 56, 0.08));
  pointer-events: none;
}

.donation-card-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: relative;
  z-index: 1;
}

.donation-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border: 1px solid #cce8da;
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}

.donation-card-content h3 {
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  font-size: 1.35rem;
}

.donation-card-content p {
  color: var(--color-text-light);
  margin-bottom: 1.25rem;
  max-width: 520px;
}

.donation-qr-box {
  background: linear-gradient(145deg, #ffffff, #f8fcfa);
  border: 2px solid #dcefe5;
  border-radius: 18px;
  padding: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 270px;
  min-width: 270px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.06);
}

.donation-qr-box img {
  width: 250px;
  height: 250px;
  object-fit: contain;
  border-radius: 12px;
}

.donation-bank-details {
  background: #ffffff;
  border: 1px solid #e7f3eb;
  border-radius: 18px;
  padding: 1.5rem;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.05);
  position: relative;
  z-index: 1;
}

.donation-bank-details h4 {
  color: var(--color-primary);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.donation-bank-details ul {
  list-style: none;
  display: grid;
  gap: 0.8rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.qr-fallback {
  color: var(--color-primary);
  font-weight: 600;
  text-align: center;
  padding: 1rem;
}

@media (max-width: 768px) {
  .donation-section-card {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }

  .donation-qr-box {
    width: 100%;
    min-width: 0;
  }
}

/* ===== CTA Banner ===== */
.cta-banner {
  background: var(--color-primary);
  color: white;
  text-align: center;
  padding: 3.5rem 0;
}

.cta-banner h2 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.cta-banner p {
  opacity: 0.9;
  margin-bottom: 1.5rem;
}

/* ===== Footer ===== */
footer {
  background: var(--color-text);
  color: #b2bec3;
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand .logo {
  color: white;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-links h4 {
  color: white;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: #b2bec3;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #4a5568;
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }

  .navbar {
    position: relative;
  }

  .about-content,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 3.5rem 0;
  }

  section {
    padding: 3rem 0;
  }
}