:root {
  --bg: #0d0d0d;
  --bg-elevated: #1c1c1c;
  --bg-soft: #161616;
  --fg: #f2f2f2;
  --fg-dim: #9a9a9a;
  --accent: #84b095;
  --accent-deep: #689f7d;
  --accent-soft: rgba(132, 176, 149, 0.18);
  --stroke: rgba(242, 242, 242, 0.14);
  --stroke-strong: rgba(242, 242, 242, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--fg);
  font-family: Manrope, "Segoe UI", sans-serif;
  font-weight: 500;
  line-height: 1.45;
}

.wrap {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.wrap-wide {
  max-width: 56rem;
}

.brand {
  margin: 0 0 1.25rem;
  font-family: "Silkscreen", monospace;
  font-size: clamp(1.6rem, 5vw, 2rem);
  letter-spacing: 0.06em;
  color: var(--fg);
}

.nav {
  display: flex;
  gap: 0.5rem;
  margin: 0 0 1.75rem;
  padding: 0.35rem;
  background: var(--bg-elevated);
  border-radius: 999px;
  width: fit-content;
}

.nav a {
  color: var(--fg-dim);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
}

.nav a.active,
.nav a:hover {
  color: var(--bg);
  background: var(--accent);
}

h1 {
  margin: 0 0 0.65rem;
  font-family: "Silkscreen", monospace;
  font-size: clamp(1.1rem, 3.5vw, 1.35rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg);
}

.hint {
  color: var(--fg-dim);
  line-height: 1.55;
  font-size: 0.95rem;
  max-width: 36rem;
}

form {
  display: grid;
  gap: 0.85rem;
  margin: 1.5rem 0;
  padding: 1rem;
  background: var(--bg-elevated);
  border-radius: 1.25rem;
  border: 1px solid var(--stroke);
}

button,
.cta {
  border: 1px solid var(--stroke-strong);
  background: transparent;
  color: var(--fg);
  padding: 0.85rem 1.2rem;
  font-family: Manrope, sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 999px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

button:hover,
.cta:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--fg);
}

button[type="submit"] {
  border-color: var(--accent);
  color: var(--accent);
}

button[type="submit"]:hover {
  background: var(--accent);
  color: var(--bg);
}

input[type="file"],
input[type="text"] {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--stroke);
  border-radius: 0.9rem;
  background: var(--bg-soft);
  color: var(--fg);
  font: inherit;
}

input[type="text"]:focus,
input[type="file"]:focus {
  outline: none;
  border-color: var(--accent);
}

.log {
  min-height: 6rem;
  padding: 1rem;
  border: 1px solid var(--stroke);
  border-radius: 1.1rem;
  background: var(--bg-elevated);
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--fg-dim);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.82rem;
}

.preview {
  display: block;
  margin-top: 1rem;
  max-width: 100%;
  border: 1px solid var(--stroke);
  border-radius: 1.1rem;
}

.city-form {
  grid-template-columns: 1fr 1fr auto;
  align-items: end;
}

.city-form label {
  display: grid;
  gap: 0.4rem;
  color: var(--fg-dim);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1rem;
}

.presets button {
  padding: 0.55rem 0.85rem;
  font-size: 0.78rem;
  background: var(--bg-elevated);
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.panel {
  border: 1px solid var(--stroke);
  background: var(--bg-elevated);
  border-radius: 1.25rem;
  padding: 1rem;
}

.panel h2 {
  margin: 0 0 0.85rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.panel svg {
  width: 100%;
  height: auto;
  display: block;
  background: var(--bg);
  border-radius: 0.85rem;
}

.legend {
  margin: 0.85rem 0 0;
  color: var(--fg-dim);
  font-size: 0.82rem;
  line-height: 1.45;
}

.bars-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
  margin: 1.25rem 0 1rem;
}

.radius-label {
  display: grid;
  gap: 0.35rem;
  color: var(--fg-dim);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.radius-label select {
  min-width: 8rem;
  padding: 0.75rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--stroke-strong);
  background: var(--bg-elevated);
  color: var(--fg);
  font: inherit;
}

.map-frame {
  height: min(70vh, 560px);
  width: 100%;
  border-radius: 1.25rem;
  border: 1px solid var(--stroke);
  overflow: hidden;
  background: var(--bg-elevated);
  margin-top: 1rem;
}

.leaflet-container {
  font: inherit;
  background: var(--bg);
}

@media (max-width: 800px) {
  .city-form {
    grid-template-columns: 1fr;
  }

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

  .nav {
    width: 100%;
    flex-wrap: wrap;
  }
}