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

:root {
  --primary: #25D366;
  --primary-dark: #128C7E;
  --secondary: #075E54;
  --accent: #34B7F1;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
  --white: #ffffff;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #075E54 0%, #128C7E 50%, #25D366 100%);
  color: var(--white);
  padding: 80px 20px 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.logo {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
  animation: fadeInDown 0.8s ease-out;
}

.tagline {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 15px;
  opacity: 0.95;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.btn-secondary {
  background: rgba(255,255,255,0.15);
  color: var(--white);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255,255,255,0.3);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.25);
  transform: translateY(-2px);
}

/* Features Section */
.section {
  padding: 80px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-dark);
}

.section-subtitle {
  text-align: center;
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 60px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.feature-card {
  background: var(--white);
  padding: 35px 25px;
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  border: 1px solid rgba(0,0,0,0.05);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.15);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: block;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.feature-description {
  color: var(--text-light);
  line-height: 1.7;
  font-size: 1rem;
}

/* Why Section */
.why-section {
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
}

.why-item {
  background: var(--white);
  padding: 30px;
  border-radius: 15px;
  border-left: 4px solid var(--primary);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.why-item h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--primary-dark);
}

.why-item p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Use Cases */
.use-cases {
  background: var(--white);
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.use-case {
  text-align: center;
  padding: 25px;
  background: var(--bg-light);
  border-radius: 15px;
  transition: all 0.3s ease;
}

.use-case:hover {
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
  transform: scale(1.05);
}

.use-case-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.use-case-title {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 1.05rem;
}

/* Screenshots Section */
.screenshots {
  background: var(--bg-light);
  text-align: center;
}

.screenshots-container {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 20px 0;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  justify-content: center;
}

.screenshot-item {
  flex: 0 0 280px;
  height: 560px;
  border-radius: 30px;
  scroll-snap-align: center;
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
  border: 8px solid #1f2937;
  overflow: hidden;
  transition: transform 0.3s ease;
}

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

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

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, #075E54 0%, #128C7E 50%, #25D366 100%);
  color: var(--white);
  text-align: center;
  padding: 80px 20px;
}

.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.cta-section p {
  font-size: 1.2rem;
  margin-bottom: 40px;
  opacity: 0.95;
}

.playstore-badge,
.playstore-badge-hero {
  display: inline-block;
  transition: transform 0.3s ease;
}

.playstore-badge:hover,
.playstore-badge-hero:hover {
  transform: scale(1.05);
}

.playstore-badge img {
  height: 60px;
}

.playstore-badge-hero img {
  height: 90px;
  filter: drop-shadow(0 4px 15px rgba(0,0,0,0.3));
}

/* Footer */
footer {
  background: var(--text-dark);
  color: rgba(255,255,255,0.8);
  padding: 40px 20px 30px;
  text-align: center;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  gap: 30px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.footer-links a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-text {
  font-size: 0.9rem;
  opacity: 0.7;
  margin-top: 20px;
}

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

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

/* Responsive */
@media (max-width: 768px) {
  .logo {
    font-size: 2.5rem;
  }

  .tagline {
    font-size: 1.2rem;
  }

  .subtitle {
    font-size: 1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }

  .screenshots-container {
    justify-content: flex-start;
  }
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* WhatsApp Message Creator Section */
.message-creator {
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
  padding: 45px 20px;
}

.creator-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--white);
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.form-group {
  margin-bottom: 25px;
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-dark);
  font-size: 1rem;
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  transition: all 0.3s ease;
  background: var(--white);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.1);
}

.phone-input-group {
  display: flex;
  gap: 10px;
}

.country-select-wrapper {
  position: relative;
  flex: 0 0 140px;
}

.country-select {
  width: 100%;
  padding: 14px 12px;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  transition: all 0.3s ease;
  background: var(--white);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%2325D366' d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 35px;
  font-weight: 500;
}

.country-select:hover {
  border-color: var(--primary);
  background-color: #f0fdf4;
}

.country-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.1);
  background-color: var(--white);
}

.phone-input {
  flex: 1;
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
  font-family: 'Inter', sans-serif;
}

.helper-text {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-top: 6px;
  display: block;
}

.btn-whatsapp {
  width: 100%;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: var(--white);
  padding: 16px 32px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1.1rem;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.btn-whatsapp:active {
  transform: translateY(0);
}

.btn-whatsapp:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.loading-indicator {
  display: none;
  text-align: center;
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 15px;
}

.loading-indicator.active {
  display: block;
}

@media (max-width: 768px) {
  .creator-container {
    padding: 30px 20px;
  }

  .phone-input-group {
    flex-direction: column;
  }

  .country-select-wrapper {
    flex: 1;
  }
}