:root {
  --bg-color: #f6f8fa;
  --panel-bg: rgba(255, 255, 255, 0.85);
  --text-primary: #1f2328;
  --text-secondary: #656d76;
  --primary-accent: #0969da;
  --border-color: rgba(31, 35, 40, 0.15);
  --glow-color: rgba(9, 105, 218, 0.2);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

#app-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
}

.app-header {
  padding: 1.5rem 2rem;
  background: linear-gradient(180deg, rgba(246, 248, 250, 1) 0%, rgba(246, 248, 250, 0.8) 100%);
  border-bottom: 1px solid var(--border-color);
  z-index: 10;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.app-header h1 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.5px;
  background: -webkit-linear-gradient(45deg, #0969da, #8250df);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.25rem;
}

.app-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

#map-container {
  position: relative;
  flex-grow: 1;
  width: 100%;
}

#map {
  width: 100%;
  height: 100%;
  z-index: 1;
  background-color: #e5e7eb;
}

/* Glassmorphism coordinates panel */
.glass-panel {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  width: 90%;
  max-width: 500px;
  z-index: 1000;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  animation: slideUp 0.5s ease-out;
}

.glass-panel:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15), 0 0 15px var(--glow-color);
  border-color: rgba(31, 35, 40, 0.25);
}

.panel-header h3 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.panel-header h3::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  background-color: var(--primary-accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--primary-accent);
}

.placeholder-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-style: italic;
  text-align: center;
}

.hidden {
  display: none !important;
}

.coord-output {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.format-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: -0.5rem;
}

.coord-output code {
  display: block;
  background: rgba(246, 248, 250, 0.8);
  padding: 1rem;
  border-radius: 8px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.9rem;
  color: #0550ae;
  border: 1px solid rgba(9, 105, 218, 0.2);
  word-break: break-all;
}

.glow-btn {
  background: transparent;
  color: var(--primary-accent);
  border: 1px solid var(--primary-accent);
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  font-family: inherit;
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  align-self: flex-end;
}

.glow-btn:hover {
  background: var(--primary-accent);
  color: var(--bg-color);
  box-shadow: 0 0 12px var(--glow-color);
}

@keyframes slideUp {
  from { opacity: 0; transform: translate(-50%, 20px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* Customize Leaflet elements for dark mode */
.leaflet-control-zoom a {
  background-color: var(--panel-bg) !important;
  color: var(--text-primary) !important;
  border-color: var(--border-color) !important;
  backdrop-filter: blur(8px);
}
.leaflet-control-zoom a:hover {
  background-color: rgba(230, 230, 230, 0.8) !important;
}

.leaflet-draw-toolbar a {
  background-color: var(--panel-bg) !important;
  border-color: var(--border-color) !important;
}

.leaflet-control-attribution {
  background-color: rgba(255, 255, 255, 0.8) !important;
  color: var(--text-secondary) !important;
  backdrop-filter: blur(4px);
}
.leaflet-control-attribution a {
  color: var(--primary-accent) !important;
}