:root {
  --bg: #0f172a; --card: #1e293b; --card2: #273449; --line: #334155;
  --ink: #f1f5f9; --muted: #94a3b8; --faint: #64748b;
  --blue: #3d63dd; --blue2: #2f50c0; --green: #1e8e5a; --green2: #15744a;
  --red: #c5221f; --amber: #b7791f; --ok: #22c55e;
  --radius: 14px;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; background: var(--bg); color: var(--ink);
  font-family: -apple-system, "Segoe UI", system-ui, Roboto, sans-serif; }
body { max-width: 560px; margin: 0 auto; padding: 16px 16px 48px; }
h1 { font-size: 22px; margin: 4px 0 2px; }
h2 { font-size: 15px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin: 22px 2px 10px; }
a { color: #93b4ff; }
.hidden { display: none !important; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; }
.row > * { flex: 1; }
.muted { color: var(--muted); font-size: 13px; }
.faint { color: var(--faint); font-size: 12px; }

button {
  appearance: none; border: 0; border-radius: 10px; padding: 12px 14px; font-size: 15px; font-weight: 600;
  background: var(--card2); color: var(--ink); cursor: pointer; min-height: 44px;
}
button:active { transform: translateY(1px); }
button.primary { background: var(--blue); } button.primary:active { background: var(--blue2); }
button.good { background: var(--green); } button.good:active { background: var(--green2); }
button.ghost { background: transparent; border: 1px solid var(--line); color: var(--muted); }
button.sm { padding: 8px 10px; font-size: 14px; min-height: 38px; }

input, select {
  width: 100%; background: #0b1220; color: var(--ink); border: 1px solid var(--line);
  border-radius: 10px; padding: 11px 12px; font-size: 16px; min-height: 44px;
}
label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 5px; }

/* balance header */
.balance { display: flex; align-items: baseline; gap: 10px; }
.balance .mins { font-size: 54px; font-weight: 800; line-height: 1; }
.balance .unit { color: var(--muted); font-size: 18px; }
.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.badge.ok { background: rgba(34,197,94,.15); color: #86efac; }
.badge.warn { background: rgba(183,121,31,.2); color: #fcd34d; }
.badge.lock { background: rgba(197,34,31,.18); color: #fca5a5; }

/* stats */
.stats { display: flex; gap: 10px; }
.stat { flex: 1; background: var(--card2); border-radius: 10px; padding: 12px; text-align: center; }
.stat .n { font-size: 24px; font-weight: 700; }
.stat .l { font-size: 12px; color: var(--muted); }

/* week bars */
.week { display: flex; gap: 6px; align-items: flex-end; height: 110px; }
.week .day { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px; justify-content: flex-end; }
.week .bar { width: 70%; background: var(--blue); border-radius: 4px 4px 0 0; min-height: 2px; }
.week .d { font-size: 11px; color: var(--faint); }
.week .v { font-size: 11px; color: var(--muted); }

/* skills */
.skill { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-top: 1px solid var(--line); }
.skill:first-child { border-top: 0; }
.skill .name { flex: 1; font-weight: 600; }
.skill .lvl { background: var(--card2); border-radius: 8px; padding: 3px 9px; font-size: 13px; }
.meter { flex: 2; height: 8px; background: #0b1220; border-radius: 999px; overflow: hidden; }
.meter > span { display: block; height: 100%; background: var(--ok); }
.skill .pct { width: 42px; text-align: right; font-variant-numeric: tabular-nums; color: var(--muted); font-size: 13px; }

.missed { font-size: 14px; padding: 9px 0; border-top: 1px solid var(--line); }
.missed:first-child { border-top: 0; }
.missed .q { color: var(--ink); }
.missed .a { color: var(--muted); font-size: 13px; margin-top: 2px; }
.missed .a b { color: #86efac; } .missed .a s { color: #fca5a5; }

.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%);
  background: #111827; border: 1px solid var(--line); color: var(--ink); padding: 12px 18px;
  border-radius: 10px; font-size: 14px; opacity: 0; transition: opacity .2s; pointer-events: none; z-index: 50; }
.toast.show { opacity: 1; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chips button { flex: 0 0 auto; }
.typecheck { display: flex; align-items: center; gap: 8px; padding: 8px 0; }
.typecheck input { width: auto; min-height: 0; }
.spin { text-align: center; color: var(--muted); padding: 40px 0; }