/* ===================================
   Design System & Variables
   =================================== */

:root {
  /* Color Palette - Elegant Wedding Theme */
  --primary: #d4a373;
  --primary-dark: #b8835a;
  --primary-light: #e8c9a8;
  --secondary: #8b7d6b;
  --accent: #f4e8d8;

  --background: #fdfbf7;
  --surface: #ffffff;
  --overlay: rgba(255, 255, 255, 0.95);

  --text-primary: #2c2c2c;
  --text-secondary: #6b6b6b;
  --text-light: #999999;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #d4a373 0%, #b8835a 100%);
  --gradient-hero: linear-gradient(135deg, rgba(212, 163, 115, 0.1) 0%, rgba(184, 131, 90, 0.05) 100%);

  /* Typography */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===================================
   Reset & Base Styles
   =================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background-color: var(--background);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===================================
   Typography
   =================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

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

a:hover {
  color: var(--primary-dark);
}

/* ===================================
   Navigation
   =================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--overlay);
  backdrop-filter: blur(20px);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--primary);
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-normal);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary);
  cursor: pointer;
}

/* ===================================
   Sections
   =================================== */

section {
  padding: var(--spacing-xl) var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  margin: var(--spacing-sm) auto 0;
  border-radius: 2px;
}

/* ===================================
   Hero Section
   =================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--spacing-xl) + 60px);
}

.hero-background {
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  opacity: 0.3;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-names {
  font-size: clamp(3rem, 6vw, 5rem);
  font-family: var(--font-heading);
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  animation: fadeInUp 1s ease;
}

.hero-date {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
  animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-location {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--text-light);
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 1s ease 0.4s backwards;
}

.countdown {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  animation: fadeInUp 1s ease 0.6s backwards;
}

.countdown-item {
  text-align: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  min-width: 100px;
}

.countdown-value {
  font-size: 2.5rem;
  font-family: var(--font-heading);
  color: var(--primary);
  display: block;
  line-height: 1;
}

.countdown-label {
  font-size: 0.875rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: var(--spacing-xs);
}

/* ===================================
   Cards & Components
   =================================== */

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.grid {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* ===================================
   Buttons
   =================================== */

.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  font-family: var(--font-body);
  font-size: 1rem;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: white;
}

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

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

/* ===================================
   Forms
   =================================== */

.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 2px solid #e0e0e0;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-fast);
  background: var(--surface);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(212, 163, 115, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.error {
  color: #d32f2f;
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

/* ===================================
   Event Details
   =================================== */

.event-grid {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.event-card {
  background: var(--surface);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border-left: 4px solid var(--primary);
}

.event-time {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
}

.event-location {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--accent);
  border-radius: var(--radius-sm);
}

.dress-code {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--gradient-hero);
  border-radius: var(--radius-lg);
  margin-top: var(--spacing-md);
  border: 2px solid var(--primary-light);
}

/* ===================================
   Schedule / Timeline
   =================================== */

.timeline {
  position: relative;
  padding: var(--spacing-md) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 20px;
  bottom: 120px;
  width: 2px;
  background: var(--primary-light);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-content {
  flex: 1;
  padding: var(--spacing-md);
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin: 0 var(--spacing-md);
}

.timeline-time {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
}

.timeline-dot {
  width: 20px;
  height: 20px;
  background: var(--primary);
  border: 4px solid var(--background);
  border-radius: 50%;
  position: absolute;
  left: 50%;
  top: var(--spacing-md);
  transform: translateX(-50%);
  z-index: 1;
}

/* ===================================
   FAQ Section
   =================================== */

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: none;
  border: none;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition-fast);
}

.faq-question:hover {
  background: var(--accent);
}

.faq-icon {
  font-size: 1.5rem;
  color: var(--primary);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-answer-content {
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--text-secondary);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

/* ===================================
   Contact Section
   =================================== */

.contact-info {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.contact-email {
  font-size: 1.25rem;
  color: var(--primary);
  margin-top: var(--spacing-sm);
}

/* ===================================
   Footer
   =================================== */

.footer {
  background: var(--text-primary);
  color: white;
  text-align: center;
  padding: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.footer p {
  color: rgba(255, 255, 255, 0.7);
}

/* ===================================
   Photo Gallery
   =================================== */

.photo-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-sm);
  max-width: 1200px;
  margin: 0 auto;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  background: var(--surface);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow), opacity 0.6s ease;
  aspect-ratio: 4 / 5;
  opacity: 0;
}

.gallery-item img.loaded {
  opacity: 1;
}

.gallery-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

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

/* ===================================
   Lightbox Modal
   =================================== */

.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.lightbox.active {
  display: flex;
}

.lightbox-content {
  max-width: 90%;
  max-height: 90%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 64px rgba(0, 0, 0, 0.5);
  animation: zoomIn 0.3s ease;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 3rem;
  color: white;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 2001;
  transition: all var(--transition-fast);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: rotate(90deg);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2.5rem;
  color: white;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  cursor: pointer;
  z-index: 2001;
  transition: all var(--transition-fast);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  backdrop-filter: blur(10px);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: 30px;
}

.lightbox-next {
  right: 30px;
}

.gallery-item {
  cursor: pointer;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes zoomIn {
  from {
    transform: scale(0.8);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}


/* ===================================
   Animations
   =================================== */

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-slow);
}

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

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--overlay);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .countdown {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .countdown-item {
    min-width: calc(50% - var(--spacing-sm));
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item,
  .timeline-item:nth-child(odd) {
    flex-direction: row;
  }

  .timeline-content {
    margin-left: 50px;
    margin-right: 0;
  }

  .timeline-dot {
    left: 20px;
  }

  section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .grid,
  .event-grid {
    grid-template-columns: 1fr;
  }

  .payment-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }

  .countdown-item {
    min-width: 100%;
  }
}

/* ===================================
   Payment Cards
   =================================== */

.payment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.payment-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

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

.payment-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  transition: transform var(--transition-normal);
}

.payment-card:hover .payment-icon {
  transform: scale(1.1);
}

.payment-name {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.payment-handle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  font-family: 'Courier New', monospace;
  word-break: break-all;
}

.payment-btn {
  width: 100%;
  margin-top: var(--spacing-sm);
}