:root {
  color-scheme: light dark;
  /* Indigo/violet -- the color family behind Discord, Twitch, Linear, and
     most modern youth-skewing tech products. Energetic and current
     without being loud. Neutrals are clean cool grays, not brand-tinted. */
  --bg: #f7f7fb;
  --card-bg: #ffffff;
  --fg: #16161d;
  --muted: #6b7280;
  --border: #e5e6ee;
  --accent: #4f46e5;
  --accent-fg: #ffffff;
  --accent-soft: color-mix(in srgb, var(--accent) 7%, var(--card-bg));
  --danger: #dc2626;
  --shadow: 0 1px 2px rgba(20, 20, 40, 0.04), 0 4px 14px rgba(20, 20, 40, 0.07);
  --container-w: 900px;
  --font-display: "Space Grotesk", "Inter", -apple-system, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f14;
    --card-bg: #1a1a22;
    --fg: #f2f2f7;
    --muted: #9a9aab;
    --border: #2b2b36;
    --accent: #818cf8;
    --accent-fg: #14142b;
    --accent-soft: color-mix(in srgb, var(--accent) 12%, var(--card-bg));
    --danger: #f87171;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.25), 0 4px 16px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden; /* belt-and-suspenders: nothing should cause horizontal scroll on mobile */
}

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  /* Longhand on purpose: main also sets its own top/bottom padding, and a
     shorthand `padding` here would (via higher class-selector specificity)
     silently wipe that out since shorthand always resets all four sides. */
  padding-left: 1.1rem;
  padding-right: 1.1rem;
}

header {
  padding: 2rem 0 1.75rem;
  background:
    radial-gradient(900px 260px at 12% -30%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 65%),
    linear-gradient(135deg, var(--accent-soft), var(--bg) 85%);
  border-bottom: 1px solid var(--border);
}

header h1 {
  margin: 0 0 0.35rem;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.tagline { margin: 0; color: var(--muted); font-size: 0.98rem; max-width: 40rem; }

.stat-strip {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.1rem;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; }
.stat-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
}
.stat-label { font-size: 0.78rem; color: var(--muted); }

main { padding-top: 1.85rem; padding-bottom: 2rem; }

#nearest-panel { margin-bottom: 1.5rem; }

#locate-btn {
  display: block;
  width: 100%;
  margin: 0 0 0.5rem;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 78%, white));
  color: var(--accent-fg);
  border: none;
  padding: 0.85rem 1.4rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 3px 10px color-mix(in srgb, var(--accent) 32%, transparent);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
#locate-btn:hover {
  box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 42%, transparent);
  transform: translateY(-1px);
}
#locate-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px color-mix(in srgb, var(--accent) 30%, transparent);
}

@media (min-width: 560px) {
  #locate-btn { width: auto; }
}

#locate-status { color: var(--muted); margin: 0.6rem 0 0; }

/* Collapsed by default (not just hidden -- animatable). The old approach
   animated max-height + padding, both of which force a full layout
   recalculation on every animation frame -- that's what read as slow and
   laggy. grid-template-rows: 0fr -> 1fr only costs a track-size
   recompute, and opacity/margin-top are compositor-cheap, so the reveal
   is smooth regardless of how tall the content inside turns out to be. */
#nearest-result {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  margin-top: 0;
  transition: grid-template-rows 0.35s ease, opacity 0.3s ease, margin-top 0.3s ease;
}
#nearest-result.visible {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 1rem;
}

.result-inner {
  display: flex;
  gap: 1.1rem;
  align-items: center;
  min-height: 0; /* lets the grid row actually collapse to 0 instead of being forced open by content */
  overflow: hidden;
  background: var(--card-bg);
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 1.1rem;
  box-shadow: var(--shadow);
}

/* Switching to a different zone (a new marker click, or locate again)
   fades the old content out and the new content in instead of an instant
   text swap -- toggled by JS around the DOM update. */
.grade-badge,
.nearest-info {
  transition: opacity 0.15s ease;
}
#nearest-result.content-fading .grade-badge,
#nearest-result.content-fading .nearest-info {
  opacity: 0;
}

/* Small phones: badge sits above the info column, centered, instead of
   squeezing both side by side into a narrow strip. */
@media (max-width: 420px) {
  .result-inner {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  .grade-badge { align-self: center; }
  .nearest-info p,
  .fact-list li { text-align: left; }
}

.grade-badge {
  flex: 0 0 auto;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.5rem;
  text-align: center;
  line-height: 1.1;
  padding: 0.25rem;
}

.nearest-info { min-width: 0; } /* lets long zone names wrap/ellipsize instead of overflowing the card */
.nearest-info h2 { margin: 0 0 0.15rem; font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; }
.nearest-info p { margin: 0; color: var(--muted); }
.muted-small { font-size: 0.85rem; margin-bottom: 0.5rem !important; }

.fact-list {
  list-style: none;
  margin: 0 0 0.6rem;
  padding: 0;
  font-size: 0.9rem;
}
.fact-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.3rem 0;
  border-bottom: 1px dotted var(--border);
}
.fact-list li:last-child { border-bottom: none; }
.fact-list li svg { flex: none; margin-top: 0.15rem; color: var(--accent); }

.caveat {
  font-size: 0.82rem;
  color: var(--fg);
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 0.5rem 0.65rem;
  border-radius: 0 8px 8px 0;
}
.caveat strong { color: var(--accent); }

.bike-pin-icon,
.user-location-icon {
  background: none;
  border: none;
}
.bike-pin-icon svg {
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.35));
  transition: transform 0.15s ease, filter 0.15s ease;
  transform-origin: 50% 100%; /* pivot from the pin's point, not its center */
}
.bike-pin-icon:hover svg,
.bike-pin-icon:active svg {
  transform: scale(1.18) translateY(-2px);
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.45));
}

#map-section { position: relative; margin-bottom: 1.5rem; }
#map {
  height: clamp(320px, 62vh, 480px);
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

/* Mobile-first: a full-width strip of centered, wrapping chips along the
   bottom of the map (a tight little corner box would either overflow or
   force 7 items down to unreadable size on a phone). */
#legend {
  position: absolute;
  bottom: 0.6rem;
  right: 0.6rem;
  left: 0.6rem;
  z-index: 1000;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.45rem 0.6rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 0.6rem;
  font-size: 0.76rem;
  box-shadow: var(--shadow);
}
.legend-item { display: flex; align-items: center; gap: 0.28rem; white-space: nowrap; }
.legend-item i {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  display: inline-block;
  flex: none;
}

/* Wide enough that the legend fits on one line -- collapse back to a
   compact box tucked in the map's corner. */
@media (min-width: 560px) {
  #legend {
    left: auto;
    justify-content: flex-start;
    gap: 0.6rem;
    font-size: 0.8rem;
  }
}

#about { color: var(--muted); font-size: 0.95rem; }
#about h2 { color: var(--fg); font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; }

.button-row {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
@media (min-width: 560px) {
  .button-row { flex-direction: row; flex-wrap: wrap; }
  /* Two class selectors on purpose: .button-row > * would tie in
     specificity with .btn-secondary/.btn-danger's own `width: 100%` and
     lose, since those rules come later in the file -- same trap as the
     .container/main padding bug earlier in this project. */
  .button-row > .btn-secondary,
  .button-row > .btn-danger { width: auto; }
}

.btn-secondary {
  display: block;
  width: 100%;
  text-align: center;
  background: none;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  font-family: inherit;
  padding: 0.6rem 1.1rem;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease;
}
.btn-secondary:hover { background: var(--accent-soft); }

.btn-danger {
  display: block;
  width: 100%;
  text-align: center;
  background: linear-gradient(135deg, var(--danger), color-mix(in srgb, var(--danger) 78%, white));
  color: white;
  border: none;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: inherit;
  padding: 0.6rem 1.1rem;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 3px 10px color-mix(in srgb, var(--danger) 32%, transparent);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-danger:hover {
  box-shadow: 0 6px 18px color-mix(in srgb, var(--danger) 42%, transparent);
  transform: translateY(-1px);
}
.btn-danger:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px color-mix(in srgb, var(--danger) 30%, transparent);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 8, 20, 0.55);
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  z-index: 2000;
}
.modal-overlay:not([hidden]) { display: flex; }
.modal-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 1.5rem;
  max-width: 26rem;
  width: 100%;
  box-shadow: var(--shadow);
  text-align: center;
}
.modal-card h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--danger);
}
.modal-card p { margin: 0 0 1.2rem; color: var(--fg); line-height: 1.5; }
.modal-card p a { color: var(--accent); font-weight: 700; }
.modal-card .btn-secondary { width: auto; display: inline-block; }

.warning-box {
  margin: 0 0 0.6rem;
  padding: 0.55rem 0.7rem;
  border-radius: 0 8px 8px 0;
  border-left: 3px solid var(--danger);
  background: color-mix(in srgb, var(--danger) 10%, var(--card-bg));
  font-size: 0.85rem;
}
.warning-box p { margin: 0 0 0.4rem; color: var(--fg); }
.warning-box p:last-child { margin-bottom: 0; }

@keyframes pin-glow-pulse {
  0%, 100% {
    filter: drop-shadow(0 0 1px #fff) drop-shadow(0 0 3px #ffd633);
    transform: scale(1);
  }
  50% {
    filter: drop-shadow(0 0 2px #fff) drop-shadow(0 0 6px #ffd633);
    transform: scale(1.1);
  }
}
.pin-glow svg {
  animation: pin-glow-pulse 1.8s ease-in-out infinite;
  transform-origin: 50% 100%; /* pivot from the pin's point, not its center */
}