/* Import Premium Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Crimson+Pro:wght@400;600;700&display=swap');

:root {
  /* Light Theme - Blue & Modern */
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --accent: #dbeafe;
  --accent-dark: #bfdbfe;
  --accent-glow: rgba(37, 99, 235, 0.4);

  /* Sophisticated Gradients */
  --bg-gradient: radial-gradient(ellipse at top left, #dbeafe 0%, #bfdbfe 25%, #93c5fd 50%, #60a5fa 75%, #3b82f6 100%);
  --card-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(219, 234, 254, 0.85) 100%);
  --modal-gradient: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(219, 234, 254, 0.9));
  --glass-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.25), rgba(255, 255, 255, 0.1));

  /* Text Colors */
  --text-main: #1e3a8a;
  --text-soft: #1e40af;
  --text-muted: #60a5fa;
  --white: #ffffff;

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(59, 130, 246, 0.3);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --backdrop-blur: blur(20px);

  /* Enhanced Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.18);
  --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 30px var(--accent-glow);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);

  /* Smooth Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-med: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --transition-elastic: 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Spacing System */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Border Radius - Reduced for sharper edges */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Applied Variables */
  --bg-main: var(--bg-gradient);
  --card-bg: var(--card-gradient);
  --text-color: var(--text-main);
  --modal-bg: var(--modal-gradient);
  --map-bg: #eff6ff;
  --border-color: rgba(37, 99, 235, 0.2);
}

/* Dark Theme */
[data-theme="dark"] {
  --primary: #60a5fa;
  --primary-dark: #3b82f6;
  --primary-light: #93c5fd;
  --accent: #1e3a8a;
  --accent-dark: #1e293b;
  --accent-glow: rgba(96, 165, 250, 0.5);

  --bg-gradient: radial-gradient(ellipse at top left, #0f172a 0%, #1e293b 25%, #1e3a8a 50%, #1e40af 75%, #2563eb 100%);
  --card-gradient: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(30, 58, 138, 0.85) 100%);
  --modal-gradient: linear-gradient(145deg, rgba(30, 41, 59, 0.95), rgba(30, 58, 138, 0.9));
  --glass-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));

  --text-main: #dbeafe;
  --text-soft: #bfdbfe;
  --text-muted: #93c5fd;

  --glass-bg: rgba(30, 41, 59, 0.4);
  --glass-border: rgba(96, 165, 250, 0.2);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

  --map-bg: #1e293b;
  --border-color: rgba(96, 165, 250, 0.3);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.6);
}

/* Global Styles */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Outfit', system-ui, -apple-system, sans-serif;
  background: var(--bg-main);
  background-attachment: fixed;
  color: var(--text-color);
  min-height: 100vh;
  display: flex;
  align-items: stretch;
  justify-content: center;
  transition: background var(--transition-slow), color var(--transition-med);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Animated background with floating particles */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  animation: backgroundPulse 20s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 75, 125, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 107, 148, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(255, 182, 193, 0.05) 0%, transparent 50%);
  animation: particleFloat 30s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes backgroundPulse {

  0%,
  100% {
    transform: translate(0, 0) scale(1) rotate(0deg);
    opacity: 0.6;
  }

  33% {
    transform: translate(5%, 5%) scale(1.05) rotate(1deg);
    opacity: 0.4;
  }

  66% {
    transform: translate(-5%, 5%) scale(1.08) rotate(-1deg);
    opacity: 0.5;
  }
}

@keyframes particleFloat {

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

  50% {
    transform: translateY(-20px) scale(1.1);
  }
}

/* App Container - Glassmorphism */
.app-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1400px;
  margin: var(--spacing-lg);
  border-radius: var(--radius-xl);
  background: var(--card-bg);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--glass-border);
  animation: floatIn 1s var(--transition-elastic);
}

@keyframes floatIn {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.92);
  }

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

/* Header - Premium Design */
.app-header {
  padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
  text-align: center;
  position: relative;
  background: var(--glass-gradient);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid var(--glass-border);
  overflow: hidden;
}

.app-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {

  0%,
  100% {
    opacity: 0.3;
    transform: translateX(-100%);
  }

  50% {
    opacity: 1;
    transform: translateX(100%);
  }
}

.app-header h1 {
  margin: 0 0 var(--spacing-sm) 0;
  font-family: 'Crimson Pro', serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, var(--primary) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease-in-out infinite;
  letter-spacing: -1px;
  text-shadow: 0 2px 10px rgba(255, 75, 125, 0.2);
  position: relative;
}

@keyframes gradientShift {

  0%,
  100% {
    background-position: 0% 50%;
    filter: brightness(1);
  }

  50% {
    background-position: 100% 50%;
    filter: brightness(1.2);
  }
}

.app-header p {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--text-soft);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  font-weight: 400;
  line-height: 1.6;
}

/* Main Content */
.app-main {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* Map - Enhanced */
#map {
  width: 100%;
  height: calc(100vh - 220px);
  min-height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--map-bg);
  border: 2px solid var(--glass-border);
  box-shadow: var(--shadow-md), var(--shadow-inner);
  transition: all var(--transition-med);
  position: relative;
}

#map:hover {
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-2px);
}

/* Heart Marker - Enhanced */
.heart-marker {
  width: 36px;
  height: 36px;
  background: radial-gradient(circle at 30% 30%, #ffe4f0 0%, var(--primary) 40%, var(--primary-dark) 100%);
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  position: relative;
  box-shadow:
    0 6px 16px rgba(0, 0, 0, 0.3),
    0 0 20px var(--accent-glow),
    inset 0 -2px 4px rgba(0, 0, 0, 0.2);
  border: 3px solid rgba(255, 255, 255, 0.95);
  cursor: pointer;
  transition: all var(--transition-bounce);
  animation: heartBeat 2.5s ease-in-out infinite;
}

.heart-marker::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.4), transparent);
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

@keyframes heartBeat {

  0%,
  100% {
    transform: rotate(-45deg) scale(1);
  }

  7% {
    transform: rotate(-45deg) scale(1.15);
  }

  14% {
    transform: rotate(-45deg) scale(1);
  }

  21% {
    transform: rotate(-45deg) scale(1.1);
  }

  28% {
    transform: rotate(-45deg) scale(1);
  }
}

.heart-marker:hover {
  transform: rotate(-45deg) scale(1.3);
  box-shadow:
    0 10px 25px rgba(0, 0, 0, 0.4),
    0 0 40px var(--accent-glow),
    inset 0 -2px 4px rgba(0, 0, 0, 0.2);
  animation: none;
  filter: brightness(1.1);
}

.heart-marker:hover::before {
  opacity: 1;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-med);
}

.modal.visible {
  opacity: 1;
  pointer-events: auto;
}

.modal.hidden {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  transition: backdrop-filter var(--transition-med);
}

.modal-content {
  position: relative;
  background: var(--modal-bg);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  width: min(600px, 92vw);
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  transform: translateY(50px) scale(0.85);
  opacity: 0;
  transition: transform var(--transition-elastic), opacity var(--transition-med);
}

.modal.visible .modal-content {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.modal-close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  border: none;
  background: var(--glass-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 1.75rem;
  cursor: pointer;
  color: var(--text-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-bounce);
  z-index: 10;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

.modal-close:hover {
  background: var(--primary);
  color: var(--white);
  transform: rotate(90deg) scale(1.1);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.modal-close:active {
  transform: rotate(90deg) scale(0.95);
}

.modal-header {
  margin-bottom: var(--spacing-md);
  padding-right: var(--spacing-xl);
}

.modal-header h2 {
  margin: 0;
  font-family: 'Crimson Pro', serif;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: -0.5px;
}

/* Slideshow */
.slideshow-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.slideshow-image-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000;
  max-height: 400px;
  box-shadow: var(--shadow-md);
}

.slideshow-image-wrapper img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: opacity var(--transition-med), transform var(--transition-med);
}

.slideshow-image-wrapper img.fade-out {
  opacity: 0;
  transform: scale(0.95);
}

.slideshow-image-wrapper img.fade-in {
  opacity: 1;
  transform: scale(1);
}

.slideshow-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--spacing-md) var(--spacing-md);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.4) 70%, transparent 100%);
  color: #ffeaf4;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
}

/* Slideshow Controls - Enhanced */
.slideshow-controls {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.nav-btn {
  flex: 1;
  border-radius: var(--radius-full);
  border: none;
  padding: 14px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  font-family: 'Outfit', sans-serif;
  cursor: pointer;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  transition: all var(--transition-bounce);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  min-height: 48px;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.nav-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width var(--transition-fast), height var(--transition-fast);
}

.nav-btn:hover::before {
  width: 400px;
  height: 400px;
}

.nav-btn:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.nav-btn:active {
  transform: translateY(-1px) scale(0.98);
  box-shadow: var(--shadow-sm);
}

/* Ripple effect */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  transform: scale(0);
  animation: rippleEffect 0.6s ease-out;
  pointer-events: none;
}

@keyframes rippleEffect {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Slideshow Indicators */
.slideshow-indicators {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.indicator-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 75, 125, 0.3);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.indicator-dot:hover {
  background: rgba(255, 75, 125, 0.5);
  transform: scale(1.2);
}

.indicator-dot.active {
  background: var(--primary);
  transform: scale(1.4);
  box-shadow: 0 0 10px rgba(255, 75, 125, 0.5);
}

/* Keyboard Shortcuts Info */
.keyboard-info {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--glass-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
}

.keyboard-info kbd {
  display: inline-block;
  padding: 4px 8px;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  margin: 0 3px;
  font-weight: 600;
}

/* Theme Toggle Button */
.theme-toggle {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: var(--glass-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 2px solid var(--glass-border);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: all var(--transition-bounce);
  z-index: 1000;
  color: var(--text-main);
}

.theme-toggle:hover {
  transform: scale(1.1) rotate(15deg);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.theme-toggle:active {
  transform: scale(0.95) rotate(15deg);
}

.theme-toggle::before {
  content: '🌙';
}

[data-theme="dark"] .theme-toggle::before {
  content: '☀️';
}

/* Loading State */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Responsive Design - Enhanced */
@media (max-width: 768px) {
  .app-container {
    margin: var(--spacing-sm);
    border-radius: var(--radius-lg);
  }

  .app-header {
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
  }

  .app-header h1 {
    font-size: clamp(1.75rem, 6vw, 2.25rem);
  }

  .app-header p {
    font-size: 0.95rem;
  }

  .app-main {
    padding: var(--spacing-md);
  }

  #map {
    height: calc(100vh - 260px);
    min-height: 350px;
    border-radius: var(--radius-md);
  }

  .modal-content {
    width: 95vw;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
  }

  .modal-close {
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
  }

  .modal-header h2 {
    font-size: 1.5rem;
    padding-right: var(--spacing-2xl);
  }

  .slideshow-image-wrapper {
    max-height: 350px;
  }

  .nav-btn {
    padding: 12px 20px;
    font-size: 1rem;
    min-height: 44px;
  }

  .theme-toggle {
    width: 52px;
    height: 52px;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
  }

  .keyboard-info {
    font-size: 0.85rem;
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

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

  .app-container {
    margin: var(--spacing-xs);
    border-radius: var(--radius-md);
  }

  .app-header {
    padding: var(--spacing-md);
  }

  .app-header h1 {
    font-size: 1.65rem;
    margin-bottom: var(--spacing-xs);
  }

  .app-header p {
    font-size: 0.9rem;
  }

  .app-main {
    padding: var(--spacing-sm);
  }

  #map {
    height: calc(100vh - 240px);
    min-height: 300px;
  }

  .modal-content {
    padding: var(--spacing-md);
  }

  .slideshow-controls {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .nav-btn {
    width: 100%;
    padding: 14px 20px;
  }

  .theme-toggle {
    width: 48px;
    height: 48px;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 1.25rem;
  }

  .keyboard-info {
    font-size: 0.8rem;
  }

  .keyboard-info kbd {
    padding: 3px 6px;
    font-size: 0.75rem;
  }
}

/* Tablet landscape */
@media (min-width: 769px) and (max-width: 1024px) {
  .app-container {
    max-width: 95vw;
  }

  #map {
    height: calc(100vh - 240px);
  }
}

/* Smooth scrollbar */
.modal-content::-webkit-scrollbar {
  width: 8px;
}

.modal-content::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-sm);
}

.modal-content::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: var(--radius-sm);
}

.modal-content::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}