/* ===== CSS Variables ===== */
:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: rgba(99, 102, 241, 0.1);
  --secondary: #8b5cf6;
  --accent: #f472b6;
  --accent-2: #22d3ee;
  --bg-dark: #0a0a1a;
  --bg-darker: #050510;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--text-primary);
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 50%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

p {
  color: var(--text-secondary);
}

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

a:hover {
  color: var(--accent);
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Section Header ===== */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--primary-light);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-header h2 {
  margin-bottom: 0.5rem;
}

/* ===== Header ===== */
.header {
  padding: 1rem 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 26, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo:hover {
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-link:hover {
  color: var(--text-primary);
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 6rem 0 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse 50% 30% at 20% 80%, rgba(244, 114, 182, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

.hero h1 {
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero Stats */
.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 2rem;
  padding: 1.5rem 2.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Scroll Indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  animation: float 3s ease-in-out infinite;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
}

@keyframes float {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(10px);
  }
}

/* ===== Gallery Slider Section ===== */
.gallery-section {
  padding: 6rem 0;
  background: var(--bg-darker);
  position: relative;
}

.gallery-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-light), transparent);
}

.slider-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.slider-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide {
  min-width: 100%;
  padding: 0 0.5rem;
}

.slide-image {
  width: 100%;
  aspect-ratio: 16 / 7;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.slide-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slide-image.no-image img {
  display: none;
}

.slide-image.no-image::after {
  content: '📸 Foto Belum Tersedia';
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.25rem;
  font-weight: 600;
}

.slide-caption {
  text-align: center;
  padding: 1rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Slider Controls */
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
}

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

.slider-btn-prev {
  left: 1rem;
}

.slider-btn-next {
  right: 1rem;
}

/* Slider Dots */
.slider-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.slider-dot:hover {
  background: var(--text-muted);
}

.slider-dot.active {
  background: var(--primary);
  width: 32px;
  border-radius: 5px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
  color: white;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  color: var(--text-primary);
}

.btn-lg {
  padding: 1.125rem 2.5rem;
  font-size: 1rem;
}

/* ===== Cards ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
}

/* ===== Event Details Section ===== */
.event-details {
  padding: 6rem 0;
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.detail-card {
  text-align: center;
  padding: 2rem 1.5rem;
}

.detail-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.detail-card h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.detail-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* CTA Wrapper */
.cta-wrapper {
  text-align: center;
  margin-top: 3rem;
}

.cta-note {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.maps-btn {
  margin-top: 1rem;
}

/* Map Container */
.map-container {
  position: relative;
  margin-top: 2rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.map-container iframe {
  display: block;
  border-radius: var(--radius);
}

.map-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  cursor: pointer;
  background: transparent;
  transition: var(--transition);
}

.map-overlay:hover {
  background: rgba(99, 102, 241, 0.1);
}

/* ===== Form Section ===== */
.form-section {
  padding: 6rem 0 4rem;
  flex: 1;
}

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

.form-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.form-header h1 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.form-header p {
  font-size: 1.1rem;
}

/* ===== Form Elements ===== */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-group label .required {
  color: var(--error);
  margin-left: 0.25rem;
}

.form-group label .optional {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.85rem;
}

.form-input {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

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

.form-input:invalid:not(:placeholder-shown) {
  border-color: var(--error);
}

/* Checkbox Group */
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.checkbox-label:hover {
  background: var(--bg-card-hover);
}

.checkbox-label input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--primary);
  cursor: pointer;
}

.checkbox-label span {
  color: var(--text-primary);
}

.other-input {
  margin-top: 0.5rem;
  margin-left: 2rem;
}

.other-input .form-input {
  max-width: 300px;
}

.other-input.hidden {
  display: none;
}

/* Amount Input */
.amount-wrapper {
  position: relative;
}

.amount-prefix {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-weight: 500;
}

.amount-input {
  padding-left: 2.5rem;
}

.amount-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ===== Form Messages ===== */
.form-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  font-size: 0.95rem;
}

.form-error.hidden {
  display: none;
}

/* Loading State */
.btn-loading {
  position: relative;
  color: transparent !important;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid white;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Success Page ===== */
.success-section {
  padding: 8rem 0 4rem;
  text-align: center;
  flex: 1;
  display: flex;
  align-items: center;
}

.success-content {
  max-width: 500px;
  margin: 0 auto;
}

.success-icon {
  font-size: 5rem;
  margin-bottom: 1.5rem;
  animation: bounceIn 0.6s ease;
}

@keyframes bounceIn {
  0% {
    transform: scale(0);
  }

  50% {
    transform: scale(1.2);
  }

  100% {
    transform: scale(1);
  }
}

.success-content h1 {
  margin-bottom: 1rem;
}

.success-content p {
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

/* ===== Footer ===== */
.footer {
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .details-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    gap: 1rem;
  }

  .nav-link {
    display: none;
  }

  .hero {
    padding: 5rem 0 3rem;
    min-height: auto;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
    padding: 1.5rem 2rem;
  }

  .stat-divider {
    width: 60px;
    height: 1px;
  }

  .hero-scroll-indicator {
    display: none;
  }

  .btn-lg {
    padding: 1rem 2rem;
    font-size: 0.95rem;
    width: 100%;
  }

  .card {
    padding: 1.5rem;
  }

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

  .slider-btn {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .form-section {
    padding: 5rem 0 3rem;
  }

  .checkbox-label {
    padding: 0.625rem 0.875rem;
  }

  .other-input {
    margin-left: 0;
  }

  .other-input .form-input {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .header .container {
    gap: 0.5rem;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

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

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

  .slide-image {
    aspect-ratio: 16 / 9;
  }

  .slider-btn {
    width: 36px;
    height: 36px;
  }
}

/* ===== Micro-Animations (Desktop Only) ===== */
@media (hover: hover) and (pointer: fine) {
  .detail-card {
    will-change: transform;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  }

  .detail-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-light);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
  }

  .btn {
    will-change: transform;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  }

  .btn-primary:hover {
    transform: translateY(-2px);
  }

  .btn-primary:active {
    transform: translateY(0) scale(0.98);
  }

  .btn-secondary:hover {
    transform: translateY(-2px);
  }

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

/* ===== Back to Top Button ===== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 99;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: var(--radius-sm);
  background: rgba(99, 102, 241, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--primary);
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(99, 102, 241, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
  will-change: opacity, transform;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
  .back-to-top:hover {
    background: rgba(99, 102, 241, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.3);
  }

  .back-to-top:active {
    transform: translateY(0);
  }
}

.back-to-top:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--primary-light), 0 4px 20px rgba(0, 0, 0, 0.25);
}

@media (max-width: 768px) {
  .back-to-top {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 44px;
    height: 44px;
    font-size: 1.125rem;
  }
}

@media (max-width: 480px) {
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
  }
}

/* ===== Reduced Motion Preference ===== */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .back-to-top {
    transition: opacity 0.01ms ease, visibility 0.01ms ease;
    transform: none !important;
  }

  .back-to-top.visible {
    transform: none;
  }

  .slider-track {
    transition: none;
  }

  .detail-card:hover,
  .btn:hover,
  .btn:active {
    transform: none !important;
  }
}