/* ChampMine — teal/gold robot-miner theme */
:root {
  --bg: #0b2429;
  --bg2: #10333a;
  --card: #143e46;
  --teal: #1fb6a6;
  --teal-dark: #128577;
  --gold: #f5c542;
  --gold-dark: #d9a41f;
  --text: #eaf6f4;
  --muted: #9dbdb8;
  --danger: #ff7a7a;
}
* { 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(--bg2), var(--bg));
  color: var(--text);
  min-height: 100vh;
  padding-bottom: 92px;
}
.hidden { display: none !important; }

/* Top bar */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px;
  background: rgba(11, 36, 41, 0.92);
  border-bottom: 2px solid var(--gold);
}
.brand { display: flex; align-items: center; gap: 9px; }
.brand-avatar { width: 34px; height: 34px; border-radius: 50%; border: 2px solid var(--gold); object-fit: cover; }
.brand-name { font-weight: 800; font-size: 19px; color: var(--gold); letter-spacing: 0.4px; }
.ore-pill {
  background: var(--card); border: 1px solid var(--gold); color: var(--gold);
  font-weight: 700; padding: 6px 12px; border-radius: 999px; font-size: 14px;
}

.warn, .error { margin: 12px 14px 0; padding: 10px 12px; border-radius: 10px; font-size: 14px; }
.warn { background: #4d3d10; color: #ffe08a; }
.error { background: #4d1717; color: var(--danger); }

main { padding: 16px 14px 0; max-width: 560px; margin: 0 auto; }
.tab { display: none; }
.tab.active { display: block; }
h2 { font-size: 17px; color: var(--gold); margin: 18px 0 10px; }
h2:first-child { margin-top: 2px; }

/* Mine tab */
.mine-scene { text-align: center; padding-top: 8px; }
.digger {
  width: 210px; height: 210px; object-fit: cover; border-radius: 24px;
  border: 3px solid var(--gold); box-shadow: 0 8px 30px rgba(0,0,0,0.45);
}
.tier-line { margin-top: 12px; font-size: 17px; font-weight: 700; }
.tier-line span:first-child { color: var(--gold); }
.shift-status { margin-top: 6px; color: var(--muted); font-size: 14px; min-height: 20px; }
.shift-timer { font-size: 38px; font-weight: 800; color: var(--gold); font-variant-numeric: tabular-nums; margin: 6px 0 2px; }
.booster-row { display: block; margin: 10px 0 2px; font-size: 14px; color: var(--muted); }
.booster-row input { accent-color: var(--gold); transform: scale(1.2); margin-right: 6px; }
.hint { color: var(--muted); font-size: 12.5px; margin-top: 10px; line-height: 1.45; }

/* Buttons & cards */
.btn {
  display: block; width: 100%; margin-top: 12px; padding: 14px;
  border: none; border-radius: 12px; font-size: 16px; font-weight: 800; cursor: pointer;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.45; cursor: default; }
.btn-gold { background: linear-gradient(180deg, var(--gold), var(--gold-dark)); color: #3a2a00; }
.btn-teal { background: linear-gradient(180deg, var(--teal), var(--teal-dark)); color: #04231f; }
.card {
  background: var(--card); border: 1px solid rgba(245, 197, 66, 0.25);
  border-radius: 14px; padding: 14px; margin-bottom: 12px;
}
.card-title { font-weight: 800; font-size: 15.5px; margin-bottom: 6px; }
.card-text { color: var(--muted); font-size: 14px; line-height: 1.5; }
.card-text b, .card-text code { color: var(--text); }
.card.current { border-color: var(--gold); box-shadow: 0 0 0 1px var(--gold); }
.card .row { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.card .row .btn { width: auto; margin-top: 0; padding: 10px 16px; font-size: 14px; }
.tag { font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 999px; background: #2a2a2a; color: var(--muted); }
.tag.gold { background: var(--gold); color: #3a2a00; }
.input {
  width: 100%; margin-top: 10px; padding: 12px; border-radius: 10px;
  border: 1px solid var(--teal-dark); background: var(--bg); color: var(--text); font-size: 14px;
}
.honesty { color: var(--muted); font-size: 12px; line-height: 1.55; margin: 14px 2px; font-style: italic; }

/* Profile stats */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat { background: var(--card); border-radius: 12px; padding: 12px 6px; text-align: center; }
.stat-num { display: block; font-size: 18px; font-weight: 800; color: var(--gold); }
.stat-label { font-size: 11.5px; color: var(--muted); }
.lb-row { display: flex; justify-content: space-between; padding: 7px 2px; border-bottom: 1px solid rgba(255,255,255,0.07); font-size: 14px; }
.lb-row:last-child { border-bottom: none; }
.lb-row b { color: var(--gold); }

/* Bottom tab bar */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  display: flex; justify-content: space-around; align-items: flex-end;
  background: rgba(11, 36, 41, 0.97); border-top: 1px solid rgba(245, 197, 66, 0.35);
  padding: 8px 4px calc(10px + env(safe-area-inset-bottom));
}
.tabbtn {
  background: none; border: none; color: var(--muted); cursor: pointer;
  font-size: 20px; display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 4px 10px;
}
.tabbtn span { font-size: 11px; font-weight: 600; }
.tabbtn.active { color: var(--gold); }
.tabbtn.center {
  background: linear-gradient(180deg, var(--gold), var(--gold-dark)); color: #3a2a00;
  border-radius: 50%; width: 58px; height: 58px; justify-content: center;
  margin-top: -22px; border: 3px solid var(--bg); font-size: 24px;
}
.tabbtn.center span { font-size: 10px; }