/* Modern CSS Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background: #ffffff;
  font-size: 16px;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Modern Header */
.modern-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  padding: 1rem 0;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.75rem;
  font-weight: 700;
  background: linear-gradient(135deg, #6366f1, #8b5cf6, #d946ef);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
}

.brand-tagline {
  font-size: 0.75rem;
  color: #64748b;
  font-weight: 500;
  margin-top: -0.25rem;
}

.main-nav {
  display: flex;
  gap: 2rem;
}

.nav-item {
  color: #374151;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
  position: relative;
}

.nav-item:hover {
  color: #6366f1;
  background: rgba(99, 102, 241, 0.05);
}

/* Hero Section */
.hero-banner {
  position: relative;
  min-height: 75vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  background-image: url('https://shibpursristi.org/donate_test/background-image2.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: white;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.85) 0%, rgba(118, 75, 162, 0.85) 100%);
  z-index: 1;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.badge-icon {
  font-size: 1rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.title-highlight {
  background: linear-gradient(45deg, #fbbf24, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.125rem;
  opacity: 0.95;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 400;
}

.hero-metrics {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.metric-card {
  text-align: center;
}

.metric-number {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.metric-label {
  font-size: 0.875rem;
  opacity: 0.9;
  font-weight: 500;
}

.metric-divider {
  width: 2px;
  height: 60px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 1px;
}

/* Main Content */
.main-content {
  background: #fafafa;
  padding: 4rem 0;
}

/* Progress Section */
.progress-section {
  margin-bottom: 4rem;
}

.progress-card {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  border-radius: 1.5rem;
  padding: 2.5rem;
  color: white;
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.15);
  position: relative;
  overflow: hidden;
}

.progress-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  pointer-events: none;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
}

.progress-info h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.progress-subtitle {
  opacity: 0.9;
  font-size: 0.875rem;
}

.progress-amount {
  text-align: right;
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.amount-symbol {
  font-size: 1.25rem;
  font-weight: 600;
}

.amount-number {
  font-size: 2.5rem;
  font-weight: 800;
}

.amount-label {
  font-size: 0.875rem;
  opacity: 0.9;
  margin-left: 0.5rem;
}

.progress-bar {
  margin-top: 1.5rem;
}

.progress-track {
  width: 100%;
  height: 12px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #10b981, #34d399);
  border-radius: 6px;
  position: relative;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4));
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  font-size: 0.875rem;
  opacity: 0.9;
}

/* Content Grid */
.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

/* Info Column */
.info-column {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.info-card {
  background: white;
  border-radius: 1.25rem;
  padding: 2rem;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.info-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 50px rgba(0, 0, 0, 0.12);
}

.gradient-card {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
}

.primary-gradient {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.success-gradient {
  background: linear-gradient(135deg, #10b981, #34d399);
}

.info-gradient {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: #1f2937;
  margin: 0;
}

.card-subtitle {
  font-size: 0.875rem;
  color: #6b7280;
  margin: 0;
}

/* Impact Grid */
.impact-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.impact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: rgba(99, 102, 241, 0.05);
  border-radius: 0.75rem;
  border-left: 3px solid #6366f1;
  transition: all 0.2s ease;
}

.impact-item:hover {
  background: rgba(99, 102, 241, 0.08);
  transform: translateX(5px);
}

.impact-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.impact-text {
  flex: 1;
}

.impact-amount {
  font-size: 1rem;
  font-weight: 700;
  color: #6366f1;
  margin-bottom: 0.25rem;
}

.impact-desc {
  font-size: 0.875rem;
  color: #6b7280;
}

/* Mission Content */
.mission-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mission-text {
  color: #4b5563;
  line-height: 1.7;
  font-size: 0.9rem;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: #374151;
}

.feature-check {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, #10b981, #34d399);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* Contact List */
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 0.5rem;
  transition: background 0.2s ease;
  font-size: 0.875rem;
  color: #4b5563;
}

.contact-item:hover {
  background: #f9fafb;
}

.contact-icon {
  color: #6366f1;
  flex-shrink: 0;
}

/* Form Column */
.form-column {
  position: sticky;
  top: 6rem;
}

.donation-form-card {
  background: white;
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.form-header {
  text-align: center;
  margin-bottom: 2rem;
}

.form-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  border-radius: 16px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.form-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: #1f2937;
  margin-bottom: 0.5rem;
}

.form-subtitle {
  color: #6b7280;
  font-size: 0.875rem;
}

/* Donation Form */
.donation-form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.form-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.section-title {
  font-size: 1rem;
  font-weight: 700;
  color: #374151;
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e5e7eb;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #374151;
}

.form-label svg {
  color: #6366f1;
  flex-shrink: 0;
}

.form-input,
.form-select {
  padding: 0.875rem 1rem;
  border: 2px solid #e5e7eb;
  border-radius: 0.75rem;
  font-size: 0.875rem;
  transition: all 0.2s ease;
  background: white;
  color: #1f2937;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  transform: translateY(-1px);
}

.form-input::placeholder {
  color: #9ca3af;
}

.form-input.valid,
.form-select.valid {
  border-color: #10b981;
  background: #f0fdf4;
}

.form-input.error,
.form-select.error {
  border-color: #ef4444;
  background: #fef2f2;
  animation: shake 0.3s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}

.error-message {
  color: #ef4444;
  font-size: 0.75rem;
  font-weight: 500;
  min-height: 1rem;
}

/* Form Footer */
.form-footer {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.terms-notice {
  display: flex;
  gap: 0.75rem;
  padding: 1rem;
  background: linear-gradient(135deg, #f8fafc, #e2e8f0);
  border-radius: 0.75rem;
  border-left: 3px solid #6366f1;
}

.terms-icon {
  color: #6366f1;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.terms-notice p {
  font-size: 0.75rem;
  color: #4b5563;
  line-height: 1.5;
  margin: 0;
}

.donate-button {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 1rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
  position: relative;
  overflow: hidden;
}

.donate-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.donate-button:hover::before {
  left: 100%;
}

.donate-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

.donate-button:active {
  transform: translateY(-1px);
}

.button-icon,
.button-arrow {
  transition: transform 0.2s ease;
}

.donate-button:hover .button-arrow {
  transform: translateX(3px);
}

/* Trust Section */
.trust-section {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: 4rem 0;
}

.trust-header {
  text-align: center;
  margin-bottom: 3rem;
}

.trust-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: #1f2937;
  margin-bottom: 0.5rem;
}

.trust-subtitle {
  color: #6b7280;
  font-size: 1rem;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.trust-card {
  background: white;
  padding: 2rem;
  border-radius: 1.25rem;
  text-align: center;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.trust-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 50px rgba(0, 0, 0, 0.12);
}

.trust-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  border-radius: 16px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.trust-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 0.75rem;
}

.trust-card-text {
  color: #6b7280;
  font-size: 0.875rem;
}

/* Modern Footer */
.modern-footer {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: white;
  padding: 3rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo {
  max-width: 120px;
  height: auto;
}

.footer-description {
  color: #cbd5e1;
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 350px;
}

.footer-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-section-title {
  font-size: 1rem;
  font-weight: 700;
  color: #60a5fa;
  margin-bottom: 0.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
}

.social-link:hover {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.footer-legal {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-legal p {
  font-size: 0.875rem;
  color: #cbd5e1;
}

/* Floating Action Button */
.floating-donate {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
}

.fab-button {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.fab-button:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 12px 35px rgba(99, 102, 241, 0.5);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .content-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .form-column {
    position: static;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  .header-content {
    padding: 0 1rem;
  }
  
  .main-nav {
    gap: 1rem;
  }
  
  .nav-item {
    font-size: 0.8rem;
    padding: 0.5rem;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .hero-metrics {
    gap: 2rem;
  }
  
  .metric-divider {
    display: none;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .trust-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  
  .brand-name {
    font-size: 1.5rem;
  }
  
  .progress-header {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .progress-amount {
    justify-content: center;
  }
  
  .trust-title {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }
  
  .info-card,
  .donation-form-card {
    padding: 1.5rem;
  }
  
  .progress-card {
    padding: 1.5rem;
  }
  
  .fab-button {
    width: 48px;
    height: 48px;
  }
  
  .floating-donate {
    bottom: 1rem;
    right: 1rem;
  }
}

/* Additional Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.info-card,
.trust-card {
  animation: fadeInUp 0.6s ease forwards;
}

.info-card:nth-child(1) { animation-delay: 0.1s; }
.info-card:nth-child(2) { animation-delay: 0.2s; }
.info-card:nth-child(3) { animation-delay: 0.3s; }

.trust-card:nth-child(1) { animation-delay: 0.1s; }
.trust-card:nth-child(2) { animation-delay: 0.2s; }
.trust-card:nth-child(3) { animation-delay: 0.3s; }
.trust-card:nth-child(4) { animation-delay: 0.4s; }