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

:root {
  --primary-color: #10b981;
  --primary-dark: #059669;
  --primary-light: #34d399;
  --text-dark: #1f2937;
  --text-gray: #6b7280;
  --text-light: #9ca3af;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md:
    0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg:
    0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl:
    0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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-light);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Hero Section */
.hero {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  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="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.05"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/></g></g></svg>');
  opacity: 0.4;
}

.hero-content {
  text-align: center;
  color: white;
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  margin-bottom: 2.5rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.95);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cta-button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(16, 185, 129, 0.4);
}

.cta-button:active {
  transform: translateY(0);
}

/* Features Section */
.features {
  padding: 6rem 0;
  background: var(--bg-white);
}

.section-title {
  text-align: center;
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 4rem;
  color: var(--text-dark);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: var(--bg-white);
  padding: 2.5rem 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-light)
  );
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: white;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature-icon svg {
  width: 30px;
  height: 30px;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

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

/* Email Section */
.email-section {
  padding: 6rem 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
}

.email-content {
  text-align: center;
  color: white;
}

.email-section .section-title {
  color: white;
  margin-bottom: 2.5rem;
}

.email-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.email-input {
  flex: 1;
  min-width: 280px;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--text-dark);
  transition: var(--transition);
}

.email-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: white;
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.email-input::placeholder {
  color: var(--text-light);
}

.submit-button {
  padding: 1rem 2.5rem;
  font-size: 1rem;
  font-weight: 600;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.submit-button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.submit-button:active {
  transform: translateY(0);
}

.success-message {
  margin-top: 1.5rem;
  font-size: 1.1rem;
  font-weight: 500;
  color: white;
  opacity: 0;
  transform: translateY(10px);
  transition: var(--transition);
  background: rgba(16, 185, 129, 0.2);
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.success-message.show {
  opacity: 1;
  transform: translateY(0);
}

/* Audience Section */
.audience {
  padding: 5rem 0;
  background: var(--bg-white);
}

.audience-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.audience-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.audience-description {
  font-size: 1.1rem;
  color: var(--text-gray);
  line-height: 1.8;
}

/* Footer */
.footer {
  padding: 2rem 0;
  background: var(--text-dark);
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    /* min-height: 90vh; */
    padding: 2rem 0;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .features {
    padding: 4rem 0;
  }

  .section-title {
    margin-bottom: 2.5rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .email-section {
    padding: 4rem 0;
  }

  .form-group {
    flex-direction: column;
    gap: 1rem;
  }

  .email-input,
  .submit-button {
    width: 100%;
  }

  .audience {
    padding: 3rem 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .feature-card {
    padding: 2rem 1.5rem;
  }

  .cta-button {
    padding: 0.9rem 2rem;
    font-size: 1rem;
  }
}