:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #64748b;
  --text-dark: #1e293b;
  --text-light: #64748b;
  --bg-light: #f8fafc;
  --border-color: #e2e8f0;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
}

/* Navigation */
nav {
  background: white;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text-dark);
  transition: color 0.3s;
}

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

/* Hero Section */
.hero {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3rem;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

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

.btn-secondary:hover {
  background: var(--bg-light);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Postcard Preview */
.postcard-preview {
  background: white;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  padding: 2rem;
  transform: rotate(-2deg);
  transition: transform 0.3s;
}

.postcard-preview:hover {
  transform: rotate(0deg);
}

.postcard-front {
  border: 1px solid var(--border-color);
  padding: 2rem;
  background: white;
  min-height: 300px;
}

.joke-preview {
  text-align: center;
}

.joke-header {
  font-size: 1.25rem;
  font-weight: bold;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.joke-divider {
  width: 60%;
  height: 1px;
  background: var(--border-color);
  margin: 1rem auto;
}

.joke-text {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-dark);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

section h2 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
}

/* How It Works */
.how-it-works {
  background: var(--bg-light);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.step {
  text-align: center;
}

.step-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--primary-color);
  color: white;
  font-size: 1.5rem;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.step h3 {
  margin-bottom: 0.5rem;
}

/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature {
  text-align: center;
  padding: 2rem;
  background: white;
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature h3 {
  margin-bottom: 0.5rem;
}

/* Pricing */
.pricing {
  background: var(--bg-light);
}

.pricing-subtitle {
  text-align: center;
  color: var(--text-light);
  margin-top: -2rem;
  margin-bottom: 3rem;
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.pricing-card {
  background: white;
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: var(--shadow);
  position: relative;
}

.pricing-card.featured {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-color);
  color: white;
  padding: 0.25rem 1rem;
  border-radius: 1rem;
  font-size: 0.875rem;
}

.pricing-card h3 {
  text-align: center;
  margin-bottom: 1rem;
}

.price {
  font-size: 2.5rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 2rem;
}

.price span {
  font-size: 1rem;
  color: var(--text-light);
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 2rem;
}

.pricing-card li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.pricing-card li:last-child {
  border-bottom: none;
}

.pricing-card .btn {
  width: 100%;
}

.coming-soon::after {
  font-size: 0.875rem;
}

/* Contact */
.contact {
  text-align: center;
}

.notify-form {
  display: flex;
  gap: 1rem;
  max-width: 500px;
  margin: 2rem auto;
}

.notify-form input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 1rem;
}

.form-message {
  margin-top: 1rem;
  color: var(--primary-color);
}

/* Footer */
footer {
  background: var(--text-dark);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  margin-bottom: 1rem;
}

.footer-section a {
  display: block;
  color: #94a3b8;
  text-decoration: none;
  padding: 0.25rem 0;
  transition: color 0.3s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #334155;
  color: #94a3b8;
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-buttons {
    justify-content: center;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .pricing-cards {
    grid-template-columns: 1fr;
  }

  .pricing-card.featured {
    transform: none;
  }

  .notify-form {
    flex-direction: column;
  }

  .nav-links {
    display: none;
  }
}