:root{
  --bg:#f1f4f7; --surface:#ffffff; --ink:#14202b; --muted:#5a6673; --line:#d3dae1;
  --p1:#2456d9; --p1-ink:#ffffff; --p1-soft:rgba(36,86,217,.26);
  --p2:#f0a31c; --p2-ink:#1c1400; --p2-soft:rgba(240,163,28,.42);
  --error:#b3261e; --ok:#1b7a4b;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0f151b; --surface:#18212a; --ink:#e8edf2; --muted:#93a0ad; --line:#2b3743;
    --p1:#6b93ff; --p1-ink:#0a1230; --p1-soft:rgba(107,147,255,.35);
    --p2:#f5b73f; --p2-ink:#1c1400; --p2-soft:rgba(245,183,63,.35);
    --error:#ff8a80; --ok:#6fd39b;
  }
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.5 "Avenir Next","Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,Roboto,sans-serif;
  font-variant-numeric:tabular-nums}
a{color:inherit}
:focus-visible{outline:3px solid var(--ink);outline-offset:2px}

.top{max-width:600px;margin:0 auto;padding:calc(18px + env(safe-area-inset-top,0px)) 18px 0;
  display:flex;justify-content:space-between;align-items:center;gap:12px}
.brand{font-weight:750;letter-spacing:-.01em;text-decoration:none}
.top nav a{color:var(--muted);text-decoration:none;font-size:.95rem}
.top nav a:hover{color:var(--ink)}
main{max-width:600px;margin:0 auto;padding:8px 18px calc(72px + env(safe-area-inset-bottom,0px))}

/* Status des Datenabgleichs */
.syncbar{display:flex;align-items:center;gap:9px;margin-top:14px;font-size:.88rem;color:var(--muted)}
.sdot{flex:none;width:9px;height:9px;border-radius:50%;background:var(--muted)}
.syncbar.ok .sdot{background:var(--ok)}
.syncbar.warn .sdot{background:var(--p2)}
.syncbar button{margin-left:auto;flex:none;padding:6px 2px;font:inherit;color:var(--ink);
  background:none;border:0;text-decoration:underline;cursor:pointer}
.syncbar button:disabled{color:var(--muted);text-decoration:none;cursor:default}
.loginbox,.banner{margin-top:12px;padding:12px 14px;border:1px solid var(--line);
  border-radius:8px;background:var(--surface);font-size:.92rem}
.loginbox .row{display:flex;gap:8px;margin-top:8px}
.loginbox input{margin:0}
.loginbox button{flex:none;padding:0 16px;font:inherit;font-weight:650;color:var(--bg);
  background:var(--ink);border:0;border-radius:8px;cursor:pointer}
.banner{border-color:var(--p2)}

.flash{margin:14px 0 0;padding:11px 14px;border-radius:8px;border:1px solid var(--line);
  background:var(--surface);font-size:.95rem}
.flash.ok{border-color:var(--ok)}
.flash.error{border-color:var(--error);color:var(--error)}

section{padding:26px 0 8px}
section+section{border-top:1px solid var(--line);margin-top:18px}
h1{margin:0;font-size:clamp(1.9rem,7.4vw,2.7rem);line-height:1.12;font-weight:760;letter-spacing:-.025em}
h2{margin:0 0 4px;font-size:1.15rem;font-weight:700;letter-spacing:-.01em}
.sub{margin:10px 0 0;color:var(--muted)}

.months{display:flex;align-items:center;justify-content:space-between;padding:10px 0 0}
.months .label{padding:8px 12px;font:inherit;font-weight:650;font-size:1.02rem;color:var(--ink);
  background:none;border:0;border-radius:8px;cursor:pointer}
.months .nav{display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;
  background:none;font-size:1.5rem;line-height:1;color:var(--muted);cursor:pointer}
.months .nav:hover{background:var(--line);color:var(--ink)}

.who{padding:0 .06em}
.who.p1{background:linear-gradient(transparent 60%,var(--p1-soft) 60%)}
.who.p2{background:linear-gradient(transparent 60%,var(--p2-soft) 60%)}
.amount{white-space:nowrap}

.split{display:flex;height:34px;border-radius:8px;overflow:hidden;background:var(--line);margin-top:6px}
.split span{display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:700;
  overflow:hidden;white-space:nowrap}
.split .s1{background:var(--p1);color:var(--p1-ink)}
.split .s2{background:var(--p2);color:var(--p2-ink)}
.split.empty{align-items:center;justify-content:center;color:var(--muted);font-size:.85rem;font-weight:400}
.bars p{margin:16px 0 0;font-size:.9rem;color:var(--muted)}

table.calc{width:100%;border-collapse:collapse;margin-top:22px}
.calc th,.calc td{padding:9px 0;border-top:1px solid var(--line);text-align:right;font-weight:400}
.calc th:first-child{text-align:left;color:var(--muted)}
.calc thead th,.calc thead td{border-top:0;font-weight:650;color:var(--ink);padding-top:0}
.calc tr.saldo th,.calc tr.saldo td{font-weight:700;color:var(--ink)}
.dot{display:inline-block;width:11px;height:11px;border-radius:50%;margin-right:7px;vertical-align:baseline}
.dot.p1{background:var(--p1)} .dot.p2{background:var(--p2)}
.note{margin:14px 0 0;font-size:.9rem;color:var(--muted)}

label.field{display:block;margin-top:14px;font-size:.9rem;color:var(--muted)}
.hint{display:block;margin-top:5px;font-size:.85rem;color:var(--muted)}
input[type=text],input[type=date],input[type=password]{display:block;width:100%;margin-top:6px;
  padding:12px 13px;font:inherit;font-size:1rem;color:var(--ink);background:var(--surface);
  border:1px solid var(--line);border-radius:8px}
.pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:6px}
.seg label{position:relative;display:block}
.seg input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer}
.seg span{display:block;padding:12px 8px;text-align:center;font-weight:650;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:8px}
.seg input:checked+span.n1{background:var(--p1);border-color:var(--p1);color:var(--p1-ink)}
.seg input:checked+span.n2{background:var(--p2);border-color:var(--p2);color:var(--p2-ink)}
.seg input:focus-visible+span{outline:3px solid var(--ink);outline-offset:2px}
.legend{font-size:.9rem;color:var(--muted)}
button.primary{display:block;width:100%;margin-top:20px;padding:13px;font:inherit;font-weight:650;
  color:var(--bg);background:var(--ink);border:0;border-radius:8px;cursor:pointer}
button.ghost{margin-top:16px;padding:10px 14px;font:inherit;font-weight:600;color:var(--ink);
  background:transparent;border:1px solid var(--line);border-radius:8px;cursor:pointer}
.settled{margin:16px 0 0;color:var(--muted);font-size:.95rem}

ul.entries{list-style:none;margin:8px 0 0;padding:0}
.entry{display:grid;grid-template-columns:3.1rem 11px 1fr auto;gap:10px;align-items:center;
  padding:11px 0;border-top:1px solid var(--line)}
.entry .date{color:var(--muted);font-size:.92rem}
.entry .dot{margin:0}
.entry small{display:block;color:var(--muted);font-size:.85rem;line-height:1.3}
.entry button{width:40px;height:40px;font-size:1.3rem;line-height:1;color:var(--muted);
  background:none;border:0;border-radius:50%;cursor:pointer}
.entry button:hover{background:var(--line);color:var(--error)}
.empty-state{margin:10px 0 0;color:var(--muted)}
@media (max-width:380px){.pair{grid-template-columns:1fr}}