/* Design Tokens & Theme Variables */
:root {
  --color-sage: #7A9A7A;
  --color-sage-dark: #5A735A;
  --color-sage-light: #D4E2D4;
  --color-sage-pale: #F3F7F3;
  --color-cream: #FAF9F6;
  --color-gold: #C29D6E;
  --color-gold-dark: #A47C5C;
  --color-text-main: #2C352C;
  --color-text-muted: #5F6E5F;
  --color-white: #FFFFFF;
  
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  
  --shadow-sm: 0 4px 12px rgba(90, 115, 90, 0.04);
  --shadow-md: 0 12px 28px rgba(90, 115, 90, 0.06);
  --shadow-lg: 0 20px 48px rgba(44, 53, 44, 0.08);
  
  --transition-smooth: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: #E6EDE6;
  background-image: linear-gradient(135deg, #E2ECE2 0%, #D4DFD4 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Page Layout */
.save-the-date-container {
  flex-grow: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  padding: 40px 20px;
}

/* The Card Wrapper */
.card-wrapper {
  background-color: var(--color-cream);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.8);
  display: flex;
  width: 100%;
  max-width: 960px;
  min-height: 640px;
  overflow: hidden;
  position: relative;
  transition: var(--transition-smooth);
}

/* Left Panel: Photo */
.photo-panel {
  width: 50%;
  position: relative;
  overflow: hidden;
}

.image-wrapper {
  width: 100%;
  height: 100%;
  position: relative;
}

.couple-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.02);
  transition: transform 6s cubic-bezier(0.25, 1, 0.5, 1);
}

.card-wrapper:hover .couple-photo {
  transform: scale(1.08);
}

.photo-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to right, rgba(90, 115, 90, 0.05) 0%, rgba(44, 53, 44, 0.2) 100%);
  mix-blend-mode: multiply;
  pointer-events: none;
}

/* Right Panel: Content */
.content-panel {
  width: 50%;
  padding: 50px 60px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: var(--color-white);
  position: relative;
}

/* Monogram Header */
.monogram-header {
  text-align: center;
  margin-bottom: 24px;
}

.monogram {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-gold-dark);
  border: 1.5px solid var(--color-gold-dark);
  width: 68px;
  height: 68px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
  font-weight: 400;
  box-shadow: var(--shadow-sm);
  background-color: var(--color-cream);
  white-space: nowrap;
}

.subtitle-uppercase {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-sage-dark);
  margin-right: -0.25em;
}

/* Main Details */
.main-details {
  text-align: center;
  margin-bottom: 24px;
}

.headline {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 400;
  color: var(--color-text-main);
  line-height: 1.2;
  margin-bottom: 16px;
}

.date-highlight {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin: 12px 0;
}

.day-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--color-gold-dark);
}

.date-text {
  font-family: var(--font-sans);
  font-size: 1.4rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--color-text-main);
  margin-right: -0.15em;
}

/* Divider with Leaf */
.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60%;
  margin: 20px auto;
  position: relative;
}

.divider::before, .divider::after {
  content: '';
  height: 1px;
  flex-grow: 1;
  background-color: var(--color-sage-light);
}

.divider-leaf {
  color: var(--color-gold);
  font-size: 0.9rem;
  padding: 0 10px;
  transform: rotate(45deg);
  display: inline-block;
}

.venue-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--color-sage-dark);
  margin-bottom: 6px;
}

.venue-address {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  max-width: 280px;
  margin: 0 auto;
}

/* Countdown Section */
.countdown-section {
  text-align: center;
  margin-bottom: 28px;
}

.countdown-title {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  max-width: 320px;
  margin: 0 auto;
}

.countdown-item {
  background-color: var(--color-sage-pale);
  border: 1px solid rgba(122, 154, 122, 0.15);
  border-radius: var(--radius-sm);
  padding: 10px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.countdown-item:hover {
  transform: translateY(-2px);
  border-color: var(--color-sage-light);
  box-shadow: var(--shadow-md);
}

.countdown-item .number {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-sage-dark);
  line-height: 1.2;
}

.countdown-item .label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* Action Area */
.action-footer {
  text-align: center;
}

.rsvp-notice {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

/* Primary Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  font-family: var(--font-sans);
  transition: var(--transition-smooth);
  width: 100%;
  max-width: 260px;
  margin: 0 auto;
}

.btn-primary {
  background-color: var(--color-sage-dark);
  color: var(--color-white);
  box-shadow: 0 4px 10px rgba(90, 115, 90, 0.15);
}

.btn-primary:hover {
  background-color: #495e49;
  box-shadow: 0 8px 20px rgba(90, 115, 90, 0.25);
  transform: translateY(-2px);
}

.btn-primary:hover .btn-arrow {
  transform: translateX(4px);
}

.btn-arrow {
  transition: transform 0.3s ease;
}

/* Global Footer */
.global-footer {
  text-align: center;
  padding: 24px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  width: 100%;
}

/* Animations */
.fade-in-up {
  animation: fadeInUp 1s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

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

/* Responsive Queries */
@media (max-width: 900px) {
  .save-the-date-container {
    padding: 20px 15px;
  }
  .card-wrapper {
    flex-direction: column;
    min-height: auto;
    max-width: 480px;
  }
  .photo-panel, .content-panel {
    width: 100%;
  }
  .photo-panel {
    height: 360px;
  }
  .content-panel {
    padding: 40px 30px;
    gap: 30px;
  }
  .headline {
    font-size: 2.4rem;
  }
}

@media (max-width: 480px) {
  .photo-panel {
    height: 280px;
  }
  .content-panel {
    padding: 30px 20px;
  }
  .headline {
    font-size: 2.1rem;
  }
  .countdown-grid {
    gap: 8px;
  }
  .countdown-item {
    padding: 8px 2px;
  }
  .countdown-item .number {
    font-size: 1.2rem;
  }
}