:root{--bg:#F7F7F4;--surface:#fff;--sunk:#F0EFEA;--ink:#121317;--muted:#666971;--line:#E8E6E0;--lime:#D4FF3A;--pos:#3A6000;--neg:#B0351A;--neg-soft:#FDE6E0;--warn-soft:#FFF1CF;--focus:#2F6BFF;--scrim:rgba(18,19,23,.42);--r:14px;
--fd:'Space Grotesk',Arial,sans-serif;--fb:'DM Sans',system-ui,-apple-system,'Segoe UI',sans-serif}
@media (prefers-color-scheme:dark){:root{--bg:#0E0F11;--surface:#16171A;--sunk:#1D1E22;--ink:#F2F2EE;--muted:#A3A5AC;--line:#2A2B30;--pos:#B8E35A;--neg:#FF8A6B;--neg-soft:#3A1D16;--warn-soft:#33290F;--scrim:rgba(0,0,0,.6)}}
*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--ink);font:16px/1.45 var(--fb);-webkit-font-smoothing:antialiased}
main{max-width:560px;margin:0 auto;padding:16px 16px 96px}
h1,h2,h3{font-family:var(--fd);letter-spacing:-.02em;margin:0 0 8px}h1{font-size:28px}h2{font-size:20px;margin-top:20px}h3{font-size:16px}
p{margin:0 0 10px}.muted{color:var(--muted)}.small{font-size:13px}
.top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:16px}
.logo{font:700 26px var(--fd);letter-spacing:-.06em}.logo b{background:var(--lime);color:#121317;border-radius:8px;padding:0 6px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;margin:0 0 12px}
.row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0;border-top:1px solid var(--line)}.row:first-child{border-top:0}
.row .grow{flex:1;min-width:0}.row .grow>*{overflow-wrap:anywhere}
label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
input,select,textarea{width:100%;font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:11px 12px}
input:focus,select:focus,textarea:focus,button:focus-visible{outline:2px solid var(--focus);outline-offset:1px}
button,.btn{font:600 15px var(--fb);border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:10px 16px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px}
button.primary,.btn.primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}
button.lime{background:var(--lime);color:#121317;border-color:var(--lime)}
button.ghost{border-color:transparent;background:transparent}button.danger{color:var(--neg)}
button:disabled{opacity:.5;cursor:default}.full{width:100%}.btns{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tabs{display:flex;gap:6px;margin-bottom:14px}.tabs button{flex:1}.tabs button.on{background:var(--ink);color:var(--bg)}
.pill{display:inline-block;font-size:12px;font-weight:600;padding:3px 8px;border-radius:999px;background:var(--sunk);color:var(--muted);white-space:nowrap}
.pill.pos{background:var(--lime);color:#121317}.pill.neg{background:var(--neg-soft);color:var(--neg)}.pill.warn{background:var(--warn-soft)}
.amt{font:700 18px var(--fd);white-space:nowrap}.big{font:700 36px var(--fd);letter-spacing:-.03em}
.pos{color:var(--pos)}.neg{color:var(--neg)}
.item{display:flex;gap:10px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:12px;margin-bottom:8px;cursor:pointer;background:var(--surface);width:100%;text-align:left;font-weight:400}
.item.on{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}.item .grow{flex:1}
.err{color:var(--neg);font-size:14px;margin-top:8px;min-height:1em}
.sheet-bg{position:fixed;inset:0;background:var(--scrim);display:flex;align-items:flex-end;justify-content:center;z-index:20}
.sheet{background:var(--bg);width:100%;max-width:560px;max-height:92vh;overflow:auto;border-radius:18px 18px 0 0;padding:18px 16px 28px}
@media (min-width:700px){.sheet-bg{align-items:center}.sheet{border-radius:18px}}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:999px;z-index:30;font-size:14px}
.steps{display:flex;gap:4px;flex-wrap:wrap}.center{text-align:center}
code{font-size:13px;background:var(--sunk);padding:2px 6px;border-radius:6px;word-break:break-all}