@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Palette */
  --primary-bg: #0a0e27;
  --secondary-bg: #141936;
  --card-bg: rgba(20, 25, 54, 0.8);
  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border-color: rgba(148, 163, 184, 0.1);
  --success: #10b981;
  --error: #ef4444;

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

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
}

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

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

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

/* Header */
header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  animation: fadeInDown 0.8s ease-out;
}

h1 {
  font-size: 3rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 400;
}

/* Main Layout */
.main-layout {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: var(--spacing-lg);
  animation: fadeIn 1s ease-out;
}

/* Input Panel */
.input-panel {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.input-panel:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.panel-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.panel-title::before {
  content: '📍';
  font-size: 1.5rem;
}

.input-instructions {
  background: rgba(99, 102, 241, 0.1);
  border-left: 3px solid var(--accent-primary);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-md);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.input-instructions code {
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  color: var(--accent-primary);
}

.icon-size-control {
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.icon-size-control label {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.icon-size-control select {
  flex: 1;
  background: var(--secondary-bg);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.icon-size-control select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.icon-size-control select option {
  background: var(--secondary-bg);
  color: var(--text-primary);
}

textarea {
  width: 100%;
  min-height: 200px;
  background: var(--secondary-bg);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm);
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  resize: vertical;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.5;
}

/* Buttons */
.button-group {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

button {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

button::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

button:hover::before {
  width: 300px;
  height: 300px;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

.btn-secondary:hover {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.1);
}

/* Map Container */
.map-container {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

#map {
  height: 600px;
  width: 100%;
  border-radius: var(--radius-lg);
}

/* Stats Bar */
.stats-bar {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  background: rgba(99, 102, 241, 0.05);
  transition: transform 0.3s ease;
}

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

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

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

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }

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

/* Responsive Design */
@media (max-width: 1024px) {
  .main-layout {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.5rem;
  }

  #map {
    height: 400px;
  }
}

@media (max-width: 640px) {
  .container {
    padding: var(--spacing-sm);
  }

  h1 {
    font-size: 2rem;
  }

  .button-group {
    flex-direction: column;
  }

  .stats-bar {
    flex-direction: column;
  }
}

/* Custom Leaflet Popup Styles */
.leaflet-popup-content-wrapper {
  background: var(--secondary-bg);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

.leaflet-popup-tip {
  background: var(--secondary-bg);
}

.popup-content {
  padding: var(--spacing-xs);
}

.popup-title {
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
  color: var(--accent-primary);
}

.popup-coords {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-family: 'Courier New', monospace;
}