:root {
  --bg: #0e0e10;
  --surface: #1a1a1d;
  --border: #2a2a2e;
  --text: #f5f5f0;
  --text-dim: #9a9a9a;
  --accent: #ff3e00;
  --warn: #ffb020;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(ellipse at top, rgba(255, 62, 0, 0.08) 0%, transparent 55%),
    radial-gradient(ellipse at bottom right, rgba(255, 176, 32, 0.04) 0%, transparent 60%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
}
/* Subtle concrete-wall texture: dotted noise */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.012) 1px, transparent 1px);
  background-size: 3px 3px;
  opacity: 0.6;
}
main { position: relative; z-index: 1; }
.topbar { z-index: 10; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
}

.brand {
  margin: 0;
  font-size: 36px;
  letter-spacing: 0.02em;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}
.tagline {
  margin: 6px 0 12px;
  color: var(--text-dim);
  font-size: 13px;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin: 8px 0 24px;
  padding: 24px 16px;
  background: transparent;
  border: 0;
}
.hero img {
  flex-shrink: 0;
  width: 100%;
  max-width: 460px;
  height: auto;
  filter: drop-shadow(0 12px 32px rgba(255, 62, 0, 0.18));
}
.hero-bubble {
  position: relative;
  background: var(--accent);
  color: var(--bg);
  padding: 14px 20px;
  border-radius: 16px;
  font-weight: 700;
  font-size: 18px;
}
.hero-bubble::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -8px;
  transform: translateX(-50%);
  border: 8px solid transparent;
  border-bottom-color: var(--accent);
  border-top: 0;
}

.tabs { display: flex; gap: 4px; }
.tab {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  font: inherit;
  transition: all 0.15s ease;
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--text);
  background: rgba(255, 62, 0, 0.12);
  border-color: var(--accent);
}

main { padding: 16px; max-width: 720px; margin: 0 auto; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.controls, .map-controls {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.controls button, .map-controls button {
  background: var(--accent);
  color: var(--bg);
  border: 0;
  border-radius: 999px;
  padding: 8px 16px;
  font-weight: 600;
  cursor: pointer;
}
.controls button:hover, .map-controls button:hover { opacity: 0.85; }
.controls select, .map-controls input {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  font: inherit;
}

.feed { display: grid; gap: 12px; }
.post {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  display: grid;
  gap: 8px;
}
.post .head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  color: var(--text-dim);
  font-size: 12px;
}
.post .caption { font-size: 15px; line-height: 1.4; }
.post .stats { color: var(--text-dim); font-size: 13px; }
.post .badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 62, 0, 0.18);
  color: var(--accent);
  margin-right: 6px;
}
.post .buzz {
  color: var(--warn);
  font-weight: 700;
}

#buzz-map {
  position: relative;
  width: 100%;
  height: 60vh;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.map-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--text-dim);
  font-size: 14px;
  text-align: center;
  padding: 16px;
}
.pin {
  position: absolute;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  color: var(--bg);
  font-size: 10px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}
.pin:hover { transform: translate(-50%, -50%) scale(1.1); }
.pin.large { font-size: 12px; }

.muted { color: var(--text-dim); font-size: 13px; }

.empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 32px 16px;
  text-align: center;
}
.empty img {
  width: 100%;
  max-width: 360px;
  height: auto;
  filter: drop-shadow(0 8px 24px rgba(255, 62, 0, 0.12));
}
.empty p {
  margin: 0;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.5;
}

@media (max-width: 480px) {
  .controls, .map-controls { flex-direction: column; }
  .controls button, .map-controls button, .controls select, .map-controls input {
    width: 100%;
  }
}