/* Nahvi · glass-morphic agentic UI
   Design tokens, frosted panels, minimal typography. */

:root {
  color-scheme: dark;

  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, 'JetBrains Mono', 'SF Mono', Menlo, monospace;

  --bg-0: #05070d;
  --bg-1: #0b1020;
  --ink-0: #f5f7fb;
  --ink-1: #c8cfe0;
  --ink-2: #8a93ad;
  --ink-3: #5a6480;

  --accent: #7cc4ff;
  --accent-2: #b18cff;
  --accent-3: #6dffd0;
  --danger: #ff7a8a;
  --warn: #ffd166;
  --ok: #6dffd0;

  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-bg-strong: rgba(255, 255, 255, 0.09);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-border-strong: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  --glass-blur: saturate(180%) blur(22px);

  --radius-sm: 0.55rem;
  --radius-md: 0.85rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.6rem;

  --t-fast: 140ms cubic-bezier(0.22, 1, 0.36, 1);
  --t-med: 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink-0);
  background: var(--bg-0);
  font-feature-settings: 'cv11', 'ss01', 'ss02';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;
}

/* Ambient gradient field behind the entire app */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60vmax 60vmax at 12% 8%, rgba(124, 196, 255, 0.18), transparent 60%),
    radial-gradient(70vmax 50vmax at 92% 12%, rgba(177, 140, 255, 0.18), transparent 60%),
    radial-gradient(80vmax 60vmax at 50% 110%, rgba(109, 255, 208, 0.12), transparent 60%),
    linear-gradient(180deg, #060812 0%, #0a0f22 100%);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

/* ---------- Layout ---------- */
main {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 1rem;
  padding: 1rem;
  height: 100vh;
}

/* ---------- Header / top bar ---------- */
header {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.9rem;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
}

header .brand {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background:
    conic-gradient(from 210deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  box-shadow: 0 0 0 1px rgba(255,255,255,0.15) inset, 0 6px 20px -6px var(--accent);
}

header h1 {
  font-size: 0.95rem;
  margin: 0;
  letter-spacing: 0.04em;
  font-weight: 600;
}

header .tag {
  margin: 0 0 0 0.25rem;
  padding-left: 0.7rem;
  border-left: 1px solid var(--glass-border);
  font-size: 0.72rem;
  color: var(--ink-2);
  letter-spacing: 0.02em;
}

/* ---------- Control rail (glass panel) ---------- */
#controls {
  position: relative;
  margin-top: 3.25rem;
  padding: 1.1rem 1rem 1.2rem;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.18) transparent;
}

#controls::-webkit-scrollbar { width: 8px; }
#controls::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.12);
  border-radius: 999px;
}

#controls section + section {
  margin-top: 1.1rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--glass-border);
}

h2 {
  margin: 0 0 0.7rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

h2::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

section:nth-of-type(2) h2::before { background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); }
section:nth-of-type(3) h2::before { background: var(--accent-3); box-shadow: 0 0 10px var(--accent-3); }
section:nth-of-type(4) h2::before { background: var(--warn); box-shadow: 0 0 10px var(--warn); }
section:nth-of-type(5) h2::before { background: var(--danger); box-shadow: 0 0 10px var(--danger); }

/* ---------- Forms ---------- */
form { display: grid; gap: 0.55rem; }

label {
  display: grid;
  gap: 0.3rem;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}

label.inline {
  grid-auto-flow: column;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink-1);
  font-size: 0.8rem;
}

label.inline input { width: auto; margin: 0; }

input,
select,
textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  color: var(--ink-0);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  font: inherit;
  font-size: 0.85rem;
  transition: border-color var(--t-fast), background var(--t-fast), box-shadow var(--t-fast);
}

input::placeholder, textarea::placeholder { color: var(--ink-3); }

input:hover,
select:hover,
textarea:hover { border-color: var(--glass-border-strong); }

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: rgba(124, 196, 255, 0.55);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 3px rgba(124, 196, 255, 0.18);
}

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='none' stroke='%238a93ad' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round' d='M1 1l5 5 5-5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

select option { background: #0b1020; color: var(--ink-0); }

textarea {
  resize: vertical;
  min-height: 4.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
}

/* ---------- Buttons ---------- */
button {
  position: relative;
  width: 100%;
  padding: 0.6rem 0.9rem;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-0);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform var(--t-fast), border-color var(--t-fast), background var(--t-fast), box-shadow var(--t-fast);
}

button:hover {
  border-color: var(--glass-border-strong);
  background: linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.05));
  transform: translateY(-1px);
}

button:active { transform: translateY(0); }

button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(124, 196, 255, 0.28);
}

button[type='submit'] {
  background: linear-gradient(135deg, rgba(124,196,255,0.35), rgba(177,140,255,0.35));
  border-color: rgba(124,196,255,0.45);
  color: #f8fbff;
}

button[type='submit']:hover {
  background: linear-gradient(135deg, rgba(124,196,255,0.5), rgba(177,140,255,0.5));
  box-shadow: 0 8px 24px -10px rgba(124,196,255,0.45);
}

.buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
}

.buttons button { font-size: 0.76rem; padding: 0.55rem 0.6rem; }

/* ---------- Map ---------- */
#map {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  isolation: isolate;
}

#map::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06), inset 0 0 80px rgba(0,0,0,0.35);
  border-radius: inherit;
}

/* Leaflet polish */
.leaflet-container { background: #0a0f22; font-family: var(--font-sans); }
.leaflet-control-zoom {
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-md) !important;
  overflow: hidden;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  background: var(--glass-bg-strong) !important;
}
.leaflet-control-zoom a {
  background: transparent !important;
  color: var(--ink-0) !important;
  border-bottom: 1px solid var(--glass-border) !important;
}
.leaflet-control-zoom a:last-child { border-bottom: 0 !important; }
.leaflet-control-attribution {
  background: rgba(10,15,34,0.6) !important;
  color: var(--ink-2) !important;
  border-radius: var(--radius-sm) 0 0 0 !important;
  border: 1px solid var(--glass-border) !important;
  border-right: 0 !important;
  border-bottom: 0 !important;
  font-size: 0.65rem !important;
  padding: 0.2rem 0.5rem !important;
}
.leaflet-control-attribution a { color: var(--accent) !important; }

/* ---------- Status + helper text ---------- */
#status-message {
  margin: 0.5rem 0 0;
  padding: 0.55rem 0.7rem;
  min-height: 1rem;
  font-size: 0.78rem;
  color: var(--ok);
  background: rgba(109, 255, 208, 0.06);
  border: 1px solid rgba(109, 255, 208, 0.18);
  border-radius: var(--radius-md);
  letter-spacing: 0.01em;
}

#status-message:empty { display: none; }

#amenity-summary,
#data-source {
  margin: 0.5rem 0 0;
  font-size: 0.74rem;
  color: var(--ink-2);
  line-height: 1.45;
}

#data-source a { color: var(--accent); text-decoration: none; border-bottom: 1px dashed rgba(124,196,255,0.4); }
#data-source a:hover { color: var(--ink-0); border-bottom-color: var(--ink-0); }

.disclaimer {
  margin: 1rem 0 0.6rem;
  font-size: 0.68rem;
  color: var(--ink-3);
  line-height: 1.5;
  letter-spacing: 0.02em;
}

#locate-me {
  background: transparent;
  border-style: dashed;
  color: var(--ink-1);
  font-size: 0.76rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  body { overflow: auto; }
  main {
    grid-template-columns: 1fr;
    grid-template-rows: auto 65vh;
    height: auto;
    gap: 0.75rem;
    padding: 0.75rem;
  }
  header { left: 0.75rem; top: 0.75rem; }
  #controls { margin-top: 3.25rem; max-height: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}