:root{
  --accent:oklch(48% 0.14 265);--accent-soft:oklch(94% 0.03 265);
  --ink:oklch(22% 0.02 265);--sub:oklch(48% 0.01 265);
  --line:oklch(90% 0.005 265);--bg:oklch(97% 0.005 265);--card:oklch(100% 0 0);
  --good:oklch(52% 0.13 150);--good-soft:oklch(93% 0.05 150);--good-line:oklch(80% 0.08 150);
  --danger:oklch(52% 0.16 25);--danger-soft:oklch(93% 0.06 25);--danger-line:oklch(75% 0.1 25);
  --warn-ink:oklch(42% 0.11 60);--warn-soft:oklch(95% 0.05 85);--warn-line:oklch(80% 0.09 85);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Work Sans',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);min-height:100vh;-webkit-font-smoothing:antialiased}
#app{max-width:560px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;padding-bottom:calc(20px + env(safe-area-inset-bottom))}
button{font-family:inherit}

header.top{padding:24px 20px 16px;display:flex;align-items:center;justify-content:space-between}
header.top h1{font-size:22px;font-weight:700;letter-spacing:-0.01em}
header.top .tag{font-size:13px;color:var(--sub);margin-top:2px}
.icon-btn{width:40px;height:40px;border-radius:10px;background:var(--card);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);font-size:16px}
.icon-btn:hover{border-color:var(--accent)}

.offline-strip{background:var(--warn-soft);color:var(--warn-ink);border-bottom:1px solid var(--warn-line);font-size:12.5px;font-weight:600;text-align:center;padding:7px 12px}
.offline-strip[hidden]{display:none}

.summary{margin:0 20px 16px;background:var(--accent);color:white;border-radius:18px;padding:18px 20px}
.summary .month-select{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;font-size:14px;font-weight:600}
.summary .month-nav{display:flex;gap:6px}
.summary .month-nav button{background:rgba(255,255,255,0.18);border:none;color:white;width:28px;height:28px;border-radius:8px;cursor:pointer;font-size:14px;line-height:1}
.summary .month-nav button:hover{background:rgba(255,255,255,0.3)}
.summary .stats{display:grid;grid-template-columns:1fr 1fr 1fr;gap:4px}
.summary .stat .num{font-size:24px;font-weight:700;letter-spacing:-0.02em;font-variant-numeric:tabular-nums}
.summary .stat .lbl{font-size:11.5px;opacity:0.8;margin-top:2px}
.summary .settle-link{margin-top:12px;background:rgba(255,255,255,0.16);border:none;color:white;width:100%;height:38px;border-radius:10px;font-size:13px;font-weight:600;cursor:pointer}
.summary .settle-link:hover{background:rgba(255,255,255,0.28)}

.settled-strip{margin:0 20px 16px;background:var(--good-soft);border:1px solid var(--good-line);border-radius:12px;padding:12px 14px;font-size:12.5px;color:var(--good);font-weight:600;cursor:pointer}
.settled-strip .amt{font-size:16px;font-weight:700}

.banner{margin:0 20px 12px;background:var(--warn-soft);border:1px solid var(--warn-line);color:var(--warn-ink);border-radius:12px;padding:11px 14px;font-size:13px;font-weight:600;display:flex;gap:8px;align-items:center;cursor:pointer}
.banner .chev{margin-left:auto;opacity:0.6}

.section-lbl{padding:0 20px;font-size:12px;font-weight:700;color:var(--sub);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:8px}
.entries{padding:0 20px 8px;display:flex;flex-direction:column;gap:10px}
.empty{text-align:center;padding:48px 20px;color:var(--sub)}
.empty .big{font-size:40px;margin-bottom:12px}
.empty p{font-size:14px;line-height:1.5}

.entry{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:10px}
.entry-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;cursor:pointer}
.entry-date{font-size:15px;font-weight:600}
.entry-items{font-size:12.5px;color:var(--sub);margin-top:2px}
.badge{font-size:11px;font-weight:700;padding:4px 10px;border-radius:100px;white-space:nowrap}
.badge.out{background:var(--accent-soft);color:var(--accent)}
.badge.done{background:var(--good-soft);color:var(--good)}
.badge.short{background:var(--danger-soft);color:var(--danger)}
.entry-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px}
.cost{font-weight:700;font-size:15px;font-variant-numeric:tabular-nums}
.entry-note{font-size:11.5px;color:var(--sub);text-align:right}
.recv-btn{font-size:12px;font-weight:700;color:var(--accent);background:var(--accent-soft);border:none;border-radius:9px;padding:9px 14px;cursor:pointer}
.recv-btn:hover{filter:brightness(0.97)}

.fab{margin:14px 20px 0;background:var(--accent);color:white;border:none;height:52px;border-radius:14px;font-size:15px;font-weight:600;cursor:pointer;box-shadow:0 8px 24px oklch(48% 0.14 265 / 0.3)}
.fab:hover{filter:brightness(1.06)}
.show-more{margin:2px 20px 0;background:var(--card);border:1px solid var(--line);color:var(--accent);height:44px;border-radius:12px;font-size:13.5px;font-weight:600;cursor:pointer}
.show-more:hover{border-color:var(--accent)}

/* ---------- sheets ---------- */
.sheet-overlay{position:fixed;inset:0;background:oklch(20% 0 0 / 0.45);display:flex;align-items:flex-end;justify-content:center;z-index:50}
.sheet-overlay[hidden]{display:none}
.sheet{background:var(--bg);width:100%;max-width:560px;max-height:92vh;overflow-y:auto;border-radius:20px 20px 0 0;padding:20px 20px calc(24px + env(safe-area-inset-bottom));animation:up .22s ease}
@keyframes up{from{transform:translateY(24px);opacity:0}to{transform:translateY(0);opacity:1}}
@media (prefers-reduced-motion: reduce){.sheet{animation:none}}
.sheet-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.sheet-head h2{font-size:18px;font-weight:700}
.close-btn{width:32px;height:32px;border-radius:8px;background:var(--card);border:1px solid var(--line);cursor:pointer;color:var(--sub);font-size:15px}

.sheet label{display:block;font-size:12px;font-weight:700;color:var(--sub);margin:16px 0 6px;text-transform:uppercase;letter-spacing:0.04em}
.sheet label:first-of-type{margin-top:0}
.sheet label .soft{font-weight:400;text-transform:none;letter-spacing:0}
input[type=text],input[type=date],input[type=number],input[type=password]{width:100%;height:44px;border:1px solid var(--line);border-radius:10px;padding:0 12px;font-size:15px;font-family:inherit;background:var(--card);color:var(--ink)}
input:focus{outline:none;border-color:var(--accent)}

.item-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.chip{padding:10px 16px;border-radius:100px;border:1px solid var(--line);background:var(--card);font-size:14px;font-weight:600;color:var(--ink);cursor:pointer;min-height:44px;display:flex;align-items:center}
.chip:hover{border-color:var(--accent)}
.chip.active{background:var(--accent);border-color:var(--accent);color:white}

.item-row{display:flex;gap:10px;align-items:center;margin-bottom:8px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:8px 10px 8px 14px}
.item-row.bad{border-color:var(--danger-line)}
.item-row .i-name{flex:1;font-size:15px;font-weight:600;border:none;background:none;padding:0;height:auto;min-width:0}
.item-row .i-name:focus{outline:none}
.item-row .i-static{flex:1;min-width:0}
.item-row .i-static .nm{font-size:14px;font-weight:600}
.item-row .i-static .sent{font-size:11px;color:var(--sub)}
.item-row .i-rate{width:80px;height:38px;font-size:14px}
.stepper{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden;flex-shrink:0}
.stepper button{width:38px;height:38px;border:none;background:var(--bg);font-size:18px;font-weight:600;color:var(--accent);cursor:pointer}
.stepper button:hover{background:var(--accent-soft)}
.stepper .qty{width:34px;text-align:center;font-size:15px;font-weight:700;font-variant-numeric:tabular-nums}
.item-row.bad .stepper .qty{color:var(--danger)}
.item-row .rm{width:38px;height:38px;border-radius:10px;border:none;background:none;color:var(--sub);cursor:pointer;font-size:16px;flex-shrink:0}
.item-row .rm:hover{color:var(--danger)}
.add-item{margin-top:2px;font-size:13px;font-weight:600;color:var(--accent);background:none;border:none;cursor:pointer;padding:10px 0;min-height:44px}

.big-good{width:100%;background:var(--good-soft);color:var(--good);border:1px solid var(--good-line);border-radius:12px;height:50px;font-weight:700;font-size:15px;cursor:pointer}
.big-good:hover{filter:brightness(0.98)}
.sheet .hint{text-align:center;font-size:12px;color:var(--sub);margin:10px 0}

.sheet-actions{display:flex;gap:10px;margin-top:20px}
.btn-primary{height:48px;border-radius:12px;background:var(--accent);color:white;border:none;font-size:15px;font-weight:600;cursor:pointer}
.sheet-actions .btn-primary{flex:1}
.btn-primary:hover{filter:brightness(1.05)}
.btn-primary:disabled{opacity:0.5;cursor:default}
.btn-ghost{width:100%;height:46px;border-radius:12px;background:var(--card);border:1px solid var(--line);color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;margin-top:8px}
.btn-ghost.good{border-color:var(--good-line);color:var(--good)}
.btn-ghost.bad{border-color:var(--danger-line);color:var(--danger)}
.btn-danger{height:48px;padding:0 16px;border-radius:12px;background:none;color:var(--danger);border:1px solid var(--line);font-size:14px;font-weight:600;cursor:pointer}
.btn-danger:hover{border-color:var(--danger)}

.kv{background:var(--card);border:1px solid var(--line);border-radius:10px;min-height:42px;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;font-size:13.5px;color:var(--sub);margin-bottom:8px}
.kv b{color:var(--ink);text-align:right}

.stmt{background:var(--card);border:1px solid var(--line);border-radius:13px;overflow:hidden;margin-bottom:12px}
.stmt .srow{display:flex;justify-content:space-between;gap:10px;padding:10px 13px;border-bottom:1px solid var(--line);font-size:13px;align-items:baseline}
.stmt .srow:last-child{border-bottom:none}
.stmt .sdate{font-weight:600;white-space:nowrap}
.stmt .sdetail{color:var(--sub);font-size:11.5px;flex:1;min-width:0}
.stmt .samt{font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}
.stmt .srow.ded .samt,.stmt .srow.ded .sdate{color:var(--danger)}
.stmt .srow.total{background:var(--bg);font-size:14px}
.stmt .srow.total .samt{font-size:16px}

.warn-box{background:var(--warn-soft);border:1px solid var(--warn-line);color:var(--warn-ink);border-radius:11px;padding:10px 13px;font-size:12.5px;font-weight:600;margin-bottom:12px}

/* ---------- login ---------- */
.login{flex:1;display:flex;flex-direction:column;justify-content:center;padding:20px;gap:6px;max-width:400px;margin:0 auto;width:100%}
.login .big{font-size:44px;text-align:center;margin-bottom:8px}
.login h1{font-size:22px;text-align:center;font-weight:700}
.login p{font-size:13.5px;color:var(--sub);text-align:center;margin-bottom:18px}
.login .err{color:var(--danger);font-size:13px;font-weight:600;text-align:center;min-height:20px;margin-top:8px}
.login .btn-primary{margin-top:12px}

.toast{position:fixed;bottom:84px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);font-size:13px;font-weight:600;padding:10px 18px;border-radius:100px;z-index:99;box-shadow:0 6px 20px oklch(20% 0.02 265/0.25)}
.toast[hidden]{display:none}