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

:root {
  --primary-color: #0066FF;
  --primary-dark: #0052CC;
  --primary-light: #3385FF;
  --success-color: #00C853;
  --text-dark: #1A1A1A;
  --text-medium: #4A4A4A;
  --text-light: #717171;
  --bg-white: #FFFFFF;
  --bg-light: #F7F9FC;
  --bg-lighter: #FAFBFC;
  --border-color: #E1E4E8;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --radius: 12px;
  --radius-lg: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
header {
  background-color: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.95);
}

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

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--text-medium);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s;
}

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

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 100px 24px;
  text-align: center;
}

.hero-title {
  font-size: 52px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 20px;
  margin-bottom: 48px;
  opacity: 0.95;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

.email-display {
  background: var(--bg-white);
  color: var(--text-dark);
  padding: 24px 32px;
  border-radius: var(--radius-lg);
  display: inline-flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 24px;
}

.email-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.email-address {
  font-size: 24px;
  font-weight: 600;
  color: var(--primary-color);
  font-family: 'Courier New', monospace;
}

.hero-features {
  font-size: 16px;
  opacity: 0.9;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* How It Works */
.how-it-works {
  padding: 100px 24px;
  background-color: var(--bg-white);
}

.section-title {
  font-size: 40px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 64px;
  color: var(--text-dark);
  letter-spacing: -0.5px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 48px;
  margin-top: 48px;
}

.step {
  text-align: center;
  padding: 40px 32px;
  background: var(--bg-lighter);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  margin: 0 auto 24px;
}

.step h4 {
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--text-dark);
  font-weight: 600;
}

.step p {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.6;
}

/* Features */
.features {
  padding: 100px 24px;
  background-color: var(--bg-light);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

.feature {
  background: var(--bg-white);
  padding: 36px 28px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.feature h4 {
  font-size: 19px;
  margin-bottom: 12px;
  color: var(--text-dark);
  font-weight: 600;
}

.feature p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.6;
}

/* FAQ */
.faq {
  padding: 100px 24px;
  background-color: var(--bg-white);
}

.faq-list {
  max-width: 800px;
  margin: 48px auto 0;
}

.faq-item {
  background: var(--bg-lighter);
  padding: 32px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  transition: all 0.2s;
}

.faq-item:hover {
  border-color: var(--primary-light);
}

.faq-item h4 {
  font-size: 19px;
  margin-bottom: 12px;
  color: var(--text-dark);
  font-weight: 600;
}

.faq-item p {
  font-size: 16px;
  color: var(--text-medium);
  line-height: 1.7;
}

.faq-item a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
}

.faq-item a:hover {
  text-decoration: underline;
}

/* Support/Donation Section */
.support-section {
  padding: 100px 24px;
  background: var(--bg-white);
}

.support-content {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.support-content h3 {
  font-size: 40px;
  margin-bottom: 16px;
  font-weight: 700;
  color: var(--text-dark);
}

.support-subtitle {
  font-size: 18px;
  color: var(--text-medium);
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.donation-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-bottom: 64px;
}

.donation-card {
  background: var(--bg-lighter);
  padding: 40px 24px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-color);
  transition: all 0.3s;
  position: relative;
}

.donation-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.donation-card.featured {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-color: transparent;
}

.donation-card .badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--success-color);
  color: white;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}

.donation-amount {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 8px;
}

.donation-period {
  font-size: 16px;
  opacity: 0.8;
  margin-bottom: 16px;
}

.donation-card p {
  margin-bottom: 24px;
  font-size: 16px;
}

.btn-donate {
  display: inline-block;
  width: 100%;
  background: var(--primary-color);
  color: white;
  padding: 14px 32px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s;
}

.donation-card.featured .btn-donate {
  background: white;
  color: var(--primary-color);
}

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

.impact-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  padding-top: 48px;
  border-top: 2px solid var(--border-color);
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 40px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 16px;
  color: var(--text-light);
}

/* CTA Section */
.cta {
  background: var(--bg-light);
  color: var(--text-dark);
  padding: 80px 24px;
  text-align: center;
}

.cta h3 {
  font-size: 36px;
  margin-bottom: 16px;
  font-weight: 700;
}

.cta p {
  font-size: 18px;
  margin-bottom: 32px;
  color: var(--text-medium);
}

.email-display-secondary {
  background: var(--bg-white);
  padding: 20px 40px;
  border-radius: var(--radius);
  display: inline-block;
  border: 2px solid var(--border-color);
}

.email-display-secondary .email-address {
  font-size: 22px;
  font-weight: 600;
  color: var(--primary-color);
  font-family: 'Courier New', monospace;
}

/* Footer */
footer {
  background-color: var(--text-dark);
  color: white;
  padding: 48px 24px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: white;
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.2s;
  font-size: 15px;
}

.footer-links a:hover {
  opacity: 1;
}

/* Contact Form Styles */
.contact-form-section {
  padding: 100px 24px;
  background-color: var(--bg-white);
}

.contact-container {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-dark);
  font-size: 15px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 16px;
  font-family: inherit;
  transition: border-color 0.2s;
  background: var(--bg-lighter);
}

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

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.btn-submit {
  width: 100%;
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 16px 32px;
  border-radius: var(--radius);
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-submit:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.form-message {
  padding: 16px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  text-align: center;
}

.form-message.success {
  background: #E8F5E9;
  color: #2E7D32;
  border: 1px solid #A5D6A7;
}

.form-message.error {
  background: #FFEBEE;
  color: #C62828;
  border: 1px solid #EF9A9A;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 36px;
  }
  
  .hero-subtitle {
    font-size: 18px;
  }
  
  .email-display {
    padding: 20px 24px;
  }
  
  .email-address {
    font-size: 20px;
  }
  
  .section-title {
    font-size: 32px;
  }
  
  .steps {
    grid-template-columns: 1fr;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .premium-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .nav-links {
    gap: 20px;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 80px 20px;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .email-display {
    padding: 16px 20px;
  }
  
  .email-address {
    font-size: 18px;
    word-break: break-all;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .how-it-works,
  .features,
  .faq,
  .premium-offer,
  .cta {
    padding: 60px 20px;
  }
  
  .price-amount {
    font-size: 48px;
  }
}