:root{
  --bg:#f2f2f7; --card:#fff; --text:#0b0d10; --dim:#7c8592;
  --line:rgba(0,0,0,.09); --accent:#2f6df6; --bar:rgba(242,242,247,.84);
  --good:#0f9960; --bad:#d93a3a; --warn:#8a6d00; --warnbg:#fff6d6;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0b0d10; --card:#151a21; --text:#e9eef5; --dim:#8a94a3;
    --line:rgba(255,255,255,.10); --accent:#5b8cff; --bar:rgba(11,13,16,.84);
    --good:#3ecf8e; --bad:#ff6b6b; --warn:#e8c76a; --warnbg:#2a2415;
  }
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;margin:0}
body{
  background:var(--bg); color:var(--text);
  font:400 16px/1.45 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",system-ui,sans-serif;
  overflow:hidden; overscroll-behavior:none;
  -webkit-user-select:none; user-select:none;
  display:flex; flex-direction:column;
}

.topbar{
  padding:calc(env(safe-area-inset-top) + 10px) 20px 10px;
  background:var(--bar); backdrop-filter:saturate(180%) blur(20px);
  border-bottom:.5px solid var(--line); flex:none;
}
.topbar h1{margin:0;font-size:28px;font-weight:700;letter-spacing:-.02em}

#scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;
  overscroll-behavior:contain;padding:14px 14px 28px}

.tabbar{
  flex:none;display:flex;gap:2px;
  padding:6px 8px calc(env(safe-area-inset-bottom) + 6px);
  background:var(--bar);backdrop-filter:saturate(180%) blur(20px);
  border-top:.5px solid var(--line);
}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:6px 0;border:0;background:none;cursor:pointer;color:var(--dim);
  font:500 11px/1 inherit;font-family:inherit;touch-action:manipulation}
.tab span{font-size:19px;line-height:1}
.tab.is-on{color:var(--accent)}

/* ── Cards & form ───────────────────────────────────────── */
.card{background:var(--card);border-radius:14px;overflow:hidden;margin-bottom:14px}
.card.pad{padding:16px}
.card h2{font-size:17px;margin:0 0 8px}

.fld{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.fld>span{flex:none;width:76px;font-size:14px;color:var(--dim)}
.fld input,.fld select{
  flex:1;min-width:0;padding:11px 12px;border:1px solid var(--line);
  border-radius:10px;background:var(--bg);color:var(--text);
  font:inherit;font-size:16px;      /* <16px makes iOS zoom on focus */
  -webkit-user-select:text;user-select:text;appearance:none;
}
.fld select{background-image:none}
.fld input:focus,.fld select:focus{outline:2px solid var(--accent);border-color:transparent}
.fld.sm{margin-bottom:0}
.fld.sm>span{width:auto;flex:1;font-size:13px}
.fld.sm input{flex:none;width:74px;padding:8px 10px;text-align:right}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;margin:12px 0}

details#tune{margin:14px 0;border-top:.5px solid var(--line);padding-top:10px}
details#tune summary{font-size:14px;color:var(--accent);cursor:pointer;
  list-style:none;padding:4px 0}
details#tune summary::-webkit-details-marker{display:none}
details#tune summary::before{content:'▸ ';font-size:11px}
details#tune[open] summary::before{content:'▾ '}

button{font:inherit;font-family:inherit;cursor:pointer;touch-action:manipulation}
button.primary{width:100%;padding:14px;border:0;border-radius:12px;
  background:var(--accent);color:#fff;font-size:16px;font-weight:600}
button.primary:active{opacity:.7}
button.primary:disabled{opacity:.5}
#savekey,#clearcache{margin-top:6px;padding:10px 16px;border:1px solid var(--line);
  border-radius:10px;background:var(--bg);color:var(--text);font-size:15px}
.danger{color:var(--bad)!important}

.status{margin:10px 0 0;font-size:13px;color:var(--dim);min-height:1.2em;text-align:center}
.note{font-size:13px;line-height:1.5;color:var(--dim);margin:8px 0 0}
.hint{font-size:14px;color:var(--dim);margin:2px 4px 14px}
code{font:500 12.5px ui-monospace,SFMono-Regular,Menlo,monospace;
  background:var(--bg);padding:1px 5px;border-radius:4px}

/* ── Verdict ────────────────────────────────────────────── */
.verdict{border-radius:14px;padding:16px;margin-bottom:14px;
  background:var(--card);border-left:4px solid var(--dim)}
.verdict.win{border-left-color:var(--good)}
.verdict.lose{border-left-color:var(--bad)}
.verdict .big{font-size:21px;font-weight:700;letter-spacing:-.02em;margin-bottom:4px}
.verdict.win .big{color:var(--good)}
.verdict.lose .big{color:var(--bad)}
.verdict .sub{font-size:13.5px;color:var(--dim);line-height:1.5}

/* ── Chart ──────────────────────────────────────────────── */
.chartwrap{padding:10px 6px 6px}
#chart{width:100%;height:220px;display:block}

/* ── Stats ──────────────────────────────────────────────── */
.statgrid{display:grid;grid-template-columns:1fr auto auto;font-size:14px}
.statgrid>div{padding:9px 12px;border-bottom:.5px solid var(--line)}
.statgrid>div:nth-child(3n){text-align:right;font-variant-numeric:tabular-nums}
.statgrid>div:nth-child(3n+2){text-align:right;font-variant-numeric:tabular-nums;
  color:var(--dim);padding-right:18px}
.statgrid .hd{font-size:11px;text-transform:uppercase;letter-spacing:.05em;
  color:var(--dim);font-weight:600}
.statgrid>div:nth-last-child(-n+3){border-bottom:0}

.caution{background:var(--warnbg)}
.caution .note{color:var(--warn)}
.caution h2{font-size:14px;color:var(--warn)}

/* ── Trades ─────────────────────────────────────────────── */
/* Explicit placement — auto-flow scrambles these into the wrong columns. */
.trade{display:grid;grid-template-columns:1fr auto;column-gap:10px;row-gap:1px;
  padding:10px 14px;border-bottom:.5px solid var(--line)}
.trade:last-child{border-bottom:0}
.trade .when{grid-area:1/1;font-size:13.5px}
.trade .px{grid-area:2/1;color:var(--dim);font-size:12px;
  font-variant-numeric:tabular-nums}
.trade .ret{grid-area:1/2;text-align:right;font-weight:650;font-size:15px;
  font-variant-numeric:tabular-nums}
.trade .ret.up{color:var(--good)} .trade .ret.down{color:var(--bad)}
.trade .why{grid-area:2/2;text-align:right;color:var(--dim);font-size:11.5px}