/* ============================================
   NYE Eve Party - Styles
   ============================================ */

/* CSS Custom Properties */
:root {
  /* Colors */
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #1a1a1a;
  --color-bg-card: #1f1f1f;
  --color-gold: #d4af37;
  --color-gold-light: #e4c767;
  --color-gold-dark: #b8962f;
  --color-silver: #c0c0c0;
  --color-silver-dark: #a8a8a8;
  --color-text-primary: #f5f5f5;
  --color-text-secondary: #888888;
  --color-text-muted: #666666;
  --color-error: #e74c3c;
  --color-success: #27ae60;

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

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 5rem;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Utility Classes */
.container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hidden {
  display: none !important;
}

.text-muted {
  color: var(--color-text-muted);
  font-size: 0.9em;
}

.optional {
  color: var(--color-text-muted);
  font-weight: 400;
}

/* Floating Particles */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particles::before,
.particles::after {
  content: '';
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-gold);
  border-radius: 50%;
  opacity: 0.3;
  animation: float 20s infinite ease-in-out;
}

.particles::before {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.particles::after {
  top: 60%;
  right: 15%;
  background: var(--color-silver);
  animation-delay: -10s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) translateX(0);
    opacity: 0.3;
  }
  25% {
    transform: translateY(-30px) translateX(20px);
    opacity: 0.5;
  }
  50% {
    transform: translateY(-10px) translateX(-10px);
    opacity: 0.3;
  }
  75% {
    transform: translateY(-40px) translateX(15px);
    opacity: 0.4;
  }
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  text-align: center;
  padding: var(--spacing-lg);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.hero-bg img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  -o-object-fit: cover;
  opacity: 0.5;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(10, 10, 10, 0.4), rgba(10, 10, 10, 0.7));
}

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

.hero-hosts {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-silver);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.05em;
}

.hero-date {
  font-family: var(--font-body);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--color-gold);
  margin-bottom: var(--spacing-sm);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 10vw, 5rem);
  font-weight: 600;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
}

.shimmer {
  background: linear-gradient(
    120deg,
    var(--color-text-primary) 0%,
    var(--color-gold) 25%,
    var(--color-text-primary) 50%,
    var(--color-gold) 75%,
    var(--color-text-primary) 100%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% {
    background-position: 200% center;
  }
  50% {
    background-position: 0% center;
  }
}

.hero-subtitle {
  font-family: var(--font-body);
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  font-style: italic;
}

.hero-hosts-photo {
  width: 250px;
  height: 300px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  border: 4px solid var(--color-gold);
  margin: var(--spacing-lg) auto;
  display: block;
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
}

.scroll-indicator {
  display: inline-block;
  margin-top: var(--spacing-xxl);
  color: var(--color-gold);
  opacity: 0.6;
  animation: bounce 2s infinite;
  transition: opacity var(--transition-fast);
}

.scroll-indicator:hover {
  opacity: 1;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* Countdown Section */
.countdown {
  background: var(--color-bg-secondary);
  padding: var(--spacing-xl) 0;
  position: relative;
  z-index: 1;
}

.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
  max-width: 500px;
  margin: 0 auto;
}

.countdown-item {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-md);
}

.countdown-number {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-gold);
  line-height: 1;
}

.countdown-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
}

/* Details Section */
.details {
  padding: var(--spacing-xxl) 0;
  position: relative;
  z-index: 1;
}

.details-content {
  text-align: center;
}

.details-text {
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

.details-text p {
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
  line-height: 1.8;
}

.details-intro {
  font-family: var(--font-heading);
  font-size: 1.3rem !important;
  color: var(--color-text-primary);
}

.details-cta {
  font-family: var(--font-heading);
  font-size: 1.4rem !important;
  color: var(--color-gold);
  margin-top: var(--spacing-lg) !important;
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.details-card {
  background: var(--color-bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  transition: border-color var(--transition-normal);
}

.details-card:hover {
  border-color: var(--color-gold);
}

.details-icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.details-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-gold);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.details-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

.details-card-link {
  text-decoration: none;
  display: block;
  cursor: pointer;
}

.details-card-link:hover {
  border-color: var(--color-gold-light);
}

.divider {
  width: 100px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  margin: var(--spacing-xxl) auto 0;
}

/* Memories Section */
.memories {
  padding: var(--spacing-xl) 0;
  background: var(--color-bg-primary);
}

.memories-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.memories-photo,
.memories-video {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  object-fit: cover;
}

@media (max-width: 768px) {
  .memories-content {
    grid-template-columns: 1fr;
  }
}

/* RSVP Section */
.rsvp {
  background: var(--color-bg-secondary);
  padding: var(--spacing-xxl) 0;
  position: relative;
  z-index: 1;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  color: var(--color-gold);
}

.rsvp-state {
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
}

.rsvp-message {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-secondary);
  text-align: center;
}

.rsvp-buttons {
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.rsvp-alt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-align: center;
}

.rsvp-alt a {
  color: var(--color-text-muted);
  text-decoration: underline;
  transition: color var(--transition-fast);
}

.rsvp-alt a:hover {
  color: var(--color-gold);
}

.welcome-message {
  font-size: 1rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-secondary);
}

/* Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-bg-card);
  border-top-color: var(--color-gold);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-md);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--color-gold-light);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  background: var(--color-gold-dark);
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: transparent;
  color: var(--color-gold);
  border: 1px solid var(--color-gold);
}

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

.btn-link {
  background: none;
  color: var(--color-text-muted);
  padding: var(--spacing-sm);
  font-size: 0.9rem;
}

.btn-link:hover {
  color: var(--color-text-secondary);
}

.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-bg-primary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Form Styles */
.rsvp-form {
  text-align: left;
}

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

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

.form-input,
.form-select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-md) center;
  padding-right: var(--spacing-xl);
}

/* Radio Buttons */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.radio-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.radio-label:hover {
  border-color: var(--color-gold);
}

.radio-label input {
  display: none;
}

.radio-custom {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-text-muted);
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
  transition: border-color var(--transition-fast);
}

.radio-label input:checked + .radio-custom {
  border-color: var(--color-gold);
}

.radio-label input:checked + .radio-custom::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: var(--color-gold);
  border-radius: 50%;
}

.radio-label input:checked ~ * {
  color: var(--color-text-primary);
}

/* Success State */
.success-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.success-message {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

/* Error State */
.error-message {
  color: var(--color-error);
  margin-bottom: var(--spacing-lg);
}

/* Footer */
.footer {
  padding: var(--spacing-xxl) 0;
  text-align: center;
  position: relative;
  z-index: 1;
}

.footer-hosts {
  margin-top: var(--spacing-lg);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-decoration {
  width: 50px;
  height: 2px;
  background: var(--color-gold);
  margin: var(--spacing-lg) auto 0;
  opacity: 0.5;
}

/* Responsive Styles */
@media (max-width: 768px) {
  .countdown-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }

  .countdown-item {
    padding: var(--spacing-sm);
  }

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

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-hosts-photo {
    width: 200px;
    height: 240px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .radio-group {
    gap: var(--spacing-xs);
  }
}

@media (min-width: 1024px) {
  .details-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .details-card {
    padding: var(--spacing-md);
  }
}

/* Gallery Styles */
.gallery-page {
  min-height: 100vh;
  padding: var(--spacing-lg) 0;
}

.gallery-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.gallery-back {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-gold);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: var(--spacing-md);
  transition: color var(--transition-fast);
}

.gallery-back:hover {
  color: var(--color-gold-light);
}

.gallery-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 3rem);
  color: var(--color-text-primary);
}

.gallery-title span {
  color: var(--color-gold);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-bg-secondary);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.gallery-item a {
  display: block;
  width: 100%;
  height: 100%;
}

.gallery-video-item {
  aspect-ratio: 16/9;
}

.gallery-video-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.gallery-nav {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
  flex-wrap: wrap;
}

.gallery-nav-link {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.gallery-nav-link:hover,
.gallery-nav-link.active {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* Gallery links on main page */
.gallery-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

.gallery-link-card {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  text-decoration: none;
  text-align: center;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
}

.gallery-link-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-2px);
}

.gallery-link-card h3 {
  font-family: var(--font-heading);
  color: var(--color-gold);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
}

.gallery-link-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0;
}

@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-sm);
  }
}

/* Print Styles */
@media print {
  .particles,
  .scroll-indicator,
  .btn,
  #rsvp {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .hero-title .shimmer {
    -webkit-text-fill-color: black;
  }
}