/* ================================================================
   RSVPex Landing Page - Main Stylesheet
   Mobile-first responsive design
   ================================================================ */

/* ================================================================
   Additional Typography & Spacing
   ================================================================ */

h2 {
  font-size: 1.75rem;
  line-height: 1.3;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

h3 {
  font-size: 1.25rem;
  line-height: 1.4;
  margin-bottom: 1rem;
  color: var(--color-text);
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #e85555;
}

/* ================================================================
   Form Styles - Additional Details
   ================================================================ */

.form-group input[type="email"],
.form-group input[type="text"],
.form-group textarea {
  background: var(--color-bg);
  transition: all 0.2s ease;
}

.form-group input[type="email"]:hover,
.form-group input[type="text"]:hover,
.form-group textarea:hover {
  border-color: #bbb;
}

.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
  resize: vertical;
  min-height: 120px;
}

.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.error {
  animation: slideDown 0.2s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.success-message {
  background: #e8f5e9;
  border: 1px solid #4caf50;
  color: #2e7d32;
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  animation: slideDown 0.3s ease;
}

/* ================================================================
   Button Styles - Additional Interactions
   ================================================================ */

.btn {
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: translateY(2px);
}

.btn-primary:active {
  background: #d94545;
}

.btn-secondary {
  background: var(--color-light-gray);
  color: var(--color-text);
  border: 1px solid #ddd;
}

.btn-secondary:hover {
  background: #f0f0f0;
  border-color: #bbb;
}

/* ================================================================
   Hero Section - Enhanced
   ================================================================ */

.hero {
  background: linear-gradient(135deg, #ffffff 0%, #f9f9f9 100%);
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 107, 107, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

.hero-subheadline strong {
  color: var(--color-primary);
  font-weight: 600;
}

.signup-form {
  max-width: 500px;
  margin: 2rem auto 0;
}

/* ================================================================
   Benefits Section
   ================================================================ */

.benefits {
  background: var(--color-bg);
  padding: 4rem 1rem;
}

.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.benefit-card {
  padding: 1.5rem;
  background: var(--color-light-gray);
  border-radius: 8px;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  border-color: var(--color-primary);
}

.benefit-card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.benefit-card h3 {
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.benefit-card p {
  color: #666;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0;
}

/* ================================================================
   Footer - Enhanced
   ================================================================ */

.footer {
  border-top: 1px solid #eee;
}

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

.footer a:hover {
  text-decoration: underline;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-light-gray);
  color: var(--color-primary);
  transition: all 0.2s;
  margin: 0 0.5rem;
}

.social-links a:hover {
  background: var(--color-primary);
  color: white;
  text-decoration: none;
}

.social-icon {
  width: 20px;
  height: 20px;
}

.legal {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.legal span {
  color: #ddd;
}

/* ================================================================
   Loading & State Indicators
   ================================================================ */

.loading {
  position: relative;
  color: transparent;
}

.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid var(--color-light-gray);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.btn.loading {
  pointer-events: none;
  opacity: 0.8;
}

/* ================================================================
   Responsive Design - Tablet (600px+)
   ================================================================ */

@media (min-width: 600px) {
  .hero {
    padding: 5rem 1rem;
  }

  .hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
  }

  .hero-subheadline {
    font-size: 1.25rem;
  }

  h2 {
    font-size: 2rem;
  }

  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .signup-form {
    max-width: 600px;
  }
}

/* ================================================================
   Responsive Design - Desktop (900px+)
   ================================================================ */

@media (min-width: 900px) {
  .hero {
    padding: 6rem 1rem;
  }

  .hero .container {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }

  .hero h1 {
    font-size: 3rem;
    text-align: left;
    margin-left: 0;
    margin-right: 0;
  }

  .hero-subheadline {
    font-size: 1.375rem;
    text-align: left;
    margin-left: 0;
    margin-right: 0;
  }

  .hero-content {
    text-align: left;
  }

  .signup-form {
    margin: 2rem 0 0;
  }

  .hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .benefits {
    padding: 6rem 1rem;
  }

  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  h2 {
    font-size: 2.25rem;
  }
}

/* ================================================================
   Responsive Design - Large Desktop (1200px+)
   ================================================================ */

@media (min-width: 1200px) {
  .hero {
    padding: 8rem 1rem;
  }

  .hero h1 {
    font-size: 3.5rem;
  }

  .benefits {
    padding: 8rem 1rem;
  }
}

/* ================================================================
   Accessibility - Focus Visible States
   ================================================================ */

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ================================================================
   Reduced Motion Support (Accessibility)
   ================================================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .benefit-card:hover {
    transform: none;
  }
}

/* ================================================================
   Print Styles
   ================================================================ */

@media print {
  .hero form,
  .footer .social-links {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  a {
    text-decoration: underline;
  }
}