/* === Variables === */
:root {
  --gis-bg-primary: #0f172a;
  --gis-bg-surface: #1e293b;
  --gis-bg-elevated: #334155;
  --gis-text-primary: #f1f5f9;
  --gis-text-secondary: #94a3b8;
  --gis-accent: #22d3ee;
  --gis-accent-warm: #38bdf8;
  --gis-success: #4ade80;
  --gis-error: #f87171;
  --gis-border: rgba(148, 163, 184, 0.15);
  --gis-glow: 0 0 20px rgba(34, 211, 238, 0.15);
  --gis-radius: 16px;
  --gis-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(180deg, var(--gis-bg-primary), #0c1222);
  color: var(--gis-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* === Top Bar === */
.top-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: rgba(15, 23, 42, 0.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gis-border);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--gis-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--gis-transition);
}

.back-link:hover {
  color: var(--gis-accent);
}

.page-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gis-text-primary);
  letter-spacing: 0.02em;
}

.search-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.search-form input[type="search"] {
  background: var(--gis-bg-elevated);
  border: 1px solid var(--gis-border);
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  color: var(--gis-text-primary);
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--gis-transition), box-shadow var(--gis-transition);
  width: 160px;
}

.search-form input[type="search"]::placeholder {
  color: var(--gis-text-secondary);
}

.search-form input[type="search"]:focus {
  border-color: var(--gis-accent);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
}

.search-form button {
  background: var(--gis-bg-elevated);
  border: 1px solid var(--gis-border);
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  color: var(--gis-text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: color var(--gis-transition), border-color var(--gis-transition);
}

.search-form button:hover {
  color: var(--gis-accent);
  border-color: var(--gis-accent);
}

/* === Hero Section === */
.hero {
  position: relative;
  text-align: center;
  padding: 80px 1.5rem 40px;
  overflow: hidden;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--gis-accent), var(--gis-accent-warm));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

.hero p {
  font-size: 1.1rem;
  color: var(--gis-text-secondary);
  max-width: 500px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* === Globe Decoration === */
.globe-visual {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 1px solid rgba(34, 211, 238, 0.12);
  opacity: 0.2;
  animation: spin 30s linear infinite;
}

.globe-visual::before,
.globe-visual::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(34, 211, 238, 0.15);
}

.globe-visual::before {
  top: 10%;
  left: 25%;
  width: 50%;
  height: 80%;
  transform: rotateY(60deg);
}

.globe-visual::after {
  top: 25%;
  left: 10%;
  width: 80%;
  height: 50%;
  transform: rotateX(60deg);
}

/* === Locator Card === */
.locator-card {
  max-width: 640px;
  margin: 0 auto;
  padding: 2.5rem;
  background: var(--gis-bg-surface);
  border: 1px solid var(--gis-border);
  border-radius: var(--gis-radius);
  box-shadow: var(--gis-glow);
  text-align: center;
}

/* === Get Location Button === */
.loc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  color: #0f172a;
  background: linear-gradient(135deg, #0891b2, #22d3ee);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform var(--gis-transition), box-shadow var(--gis-transition);
  position: relative;
  overflow: hidden;
}

.loc-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.35);
}

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

.loc-btn .btn-icon {
  width: 20px;
  height: 20px;
  transition: transform var(--gis-transition);
}

.loc-btn.loading {
  pointer-events: none;
  opacity: 0.85;
  background-size: 200% 200%;
  animation: gradientFlow 1.5s ease infinite;
}

.loc-btn.loading .btn-icon {
  animation: spin 1s linear infinite;
}

.loc-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* === Status Indicator === */
.status-indicator {
  margin-top: 1.25rem;
  font-size: 0.9rem;
  color: var(--gis-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 1.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status-indicator.loading .status-dot {
  background: var(--gis-accent);
  animation: pulse 1.2s ease-in-out infinite;
}

.status-indicator.success .status-dot {
  background: var(--gis-success);
}

.status-indicator.error .status-dot {
  background: var(--gis-error);
}

.status-indicator.success {
  color: var(--gis-success);
}

.status-indicator.error {
  color: var(--gis-error);
}

/* === Result Grid === */
.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.result-grid.hidden {
  display: none;
}

.coord-item {
  background: var(--gis-bg-primary);
  border: 1px solid var(--gis-border);
  border-radius: 12px;
  padding: 1.25rem 1rem;
  opacity: 0;
  transform: translateY(10px);
}

.coord-item.show {
  animation: slideIn 0.4s var(--gis-transition) forwards;
}

.coord-item:nth-child(2).show {
  animation-delay: 0.1s;
}

.coord-item:nth-child(3).show {
  animation-delay: 0.2s;
}

.coord-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gis-text-secondary);
  margin-bottom: 0.5rem;
}

.coord-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gis-accent);
  font-variant-numeric: tabular-nums;
  font-family: "SF Mono", "Cascadia Code", "Fira Code", ui-monospace, monospace;
}

.coord-unit {
  font-size: 0.75rem;
  color: var(--gis-text-secondary);
  margin-top: 0.3rem;
}

/* === Map Container === */
.map-container {
  margin-top: 2rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--gis-border);
  opacity: 0;
  transform: translateY(10px);
}

.map-container.show {
  animation: slideIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.map-container.hidden {
  display: none;
}

#map {
  width: 100%;
  height: 350px;
}

/* Darken OSM tiles to match dark theme */
#map .leaflet-tile-pane {
  filter: brightness(0.7) contrast(1.1) saturate(0.8);
}

#map .leaflet-control-zoom a {
  background-color: var(--gis-bg-surface);
  color: var(--gis-text-primary);
  border-color: var(--gis-border);
}

#map .leaflet-control-zoom a:hover {
  background-color: var(--gis-bg-elevated);
}

#map .leaflet-control-attribution {
  background-color: rgba(15, 23, 42, 0.7) !important;
  color: var(--gis-text-secondary) !important;
  font-size: 0.65rem;
}

#map .leaflet-control-attribution a {
  color: var(--gis-accent) !important;
}

/* === Footer === */
footer {
  text-align: center;
  margin-top: 3rem;
  padding: 2rem 1.5rem 3rem;
  color: var(--gis-text-secondary);
  font-size: 0.85rem;
}

footer a {
  color: var(--gis-accent);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* === Animations === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

@keyframes spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes gradientFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.anim-hidden {
  opacity: 0;
}

.anim-in {
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.anim-in.delay-1 {
  animation-delay: 0.1s;
}

.anim-in.delay-2 {
  animation-delay: 0.2s;
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .globe-visual {
    animation: none;
  }
}

/* === Responsive === */
@media (max-width: 768px) {
  .hero {
    padding: 60px 1.5rem 30px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .locator-card {
    margin: 0 1rem;
    padding: 2rem 1.5rem;
  }

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

  .top-bar {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .search-form {
    order: 3;
    width: 100%;
  }

  .search-form input[type="search"] {
    flex: 1;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 40px 1rem 20px;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .locator-card {
    margin: 0 0.75rem;
    padding: 1.5rem 1rem;
  }

  .coord-value {
    font-size: 1.1rem;
  }

  .globe-visual {
    width: 180px;
    height: 180px;
  }
}