:root{
  --bg:#f6f6f4; --card:#ffffff; --ink:#1a1a1a; --muted:#6b7280; --line:#e5e7eb;
  --teal:#0f766e; --teal-d:#0b5b55; --red:#b91c1c; --amber:#b45309; --green:#15803d;
  --shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
  --tab-h:64px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;padding:0}
body{
  font:16px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  color:var(--ink); background:var(--bg);
  -webkit-text-size-adjust:100%;
  padding-bottom:calc(var(--tab-h) + env(safe-area-inset-bottom));
}
h1{font-size:22px;margin:0}
h3{font-size:15px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin:22px 4px 8px}
.muted{color:var(--muted)}
.center{text-align:center}

/* Screens */
.screen{padding:calc(env(safe-area-inset-top) + 14px) 14px 14px;max-width:640px;margin:0 auto}
.screen[hidden]{display:none}
.screen-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}

/* Cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:14px;box-shadow:var(--shadow)}

/* Buttons */
button{font:inherit;cursor:pointer}
.big{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;min-height:64px;border:none;border-radius:14px;
  font-size:22px;font-weight:600;color:#fff;background:var(--teal);
}
.big.stop{background:var(--red)}
.big.ghost,.ghost{background:#eef2f1;color:var(--teal-d);border:1px solid var(--line)}
.big.scan{background:var(--teal)}
.primary{background:var(--teal);color:#fff;border:none;border-radius:12px;min-height:50px;padding:0 20px;font-size:17px;font-weight:600}
.ghost{border-radius:12px;min-height:50px;padding:0 18px;font-size:16px}
.link-btn{background:none;border:none;color:var(--teal);font-size:15px;padding:8px 4px;text-decoration:underline}
.whoami{background:#eef2f1;border:1px solid var(--line);color:var(--teal-d);border-radius:999px;padding:7px 16px;font-weight:600}

.timer{display:flex;flex-direction:column;gap:10px;margin-bottom:6px}
.timer-running{display:flex;align-items:center;gap:8px;font-size:15px;background:#ecfdf5;border:1px solid #a7f3d0;border-radius:12px;padding:10px 12px}
.timer-running .dot{width:10px;height:10px;border-radius:50%;background:var(--green);animation:pulse 1.4s infinite}
.timer-running .elapsed{margin-left:auto;font-variant-numeric:tabular-nums;font-weight:700;font-size:18px}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* Forms */
label{display:block;font-size:13px;color:var(--muted);margin-bottom:10px}
label.inline{display:inline-flex;align-items:center;gap:8px;margin-left:10px}
input,select,textarea{
  width:100%;font:inherit;color:var(--ink);background:#fff;
  border:1px solid var(--line);border-radius:10px;padding:12px;margin-top:4px;
  -webkit-appearance:none;appearance:none;
}
input[type=checkbox]{width:22px;height:22px;margin:0}
label.check,label.switch-row{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:15px}
.switch-row{justify-content:space-between;padding:6px 0}
textarea{resize:vertical}
.row{display:grid;gap:10px}
.row.two{grid-template-columns:1fr 1fr}
.row.three{grid-template-columns:1fr 1fr 1fr}
.hint{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:10px;font-size:14px;margin-bottom:10px}
.warn{display:block;color:var(--amber);font-size:13px;margin-top:6px}
details.more{margin:4px 0 10px}
details.more summary{color:var(--teal);font-size:15px;padding:6px 0;cursor:pointer}
.actions{display:flex;gap:10px;margin-top:6px}
.actions .primary{flex:1}
.msg{margin:10px 2px 0;font-size:14px;padding:10px;border-radius:10px}
.msg.ok{background:#ecfdf5;color:var(--green);border:1px solid #a7f3d0}
.msg.err{background:#fef2f2;color:var(--red);border:1px solid #fecaca}
.msg.warnbox{background:#fffbeb;color:var(--amber);border:1px solid #fde68a}

/* Receipt scanner */
.capture-buttons{display:flex;flex-direction:column;gap:10px;margin-bottom:8px}
.canvas-wrap{position:relative;width:100%;background:#111;border-radius:10px;overflow:hidden;touch-action:none}
.canvas-wrap canvas{display:block;width:100%;height:auto}
.crop-overlay{position:absolute;inset:0;width:100%;height:100%}
.crop-overlay .handle{fill:#fff;stroke:var(--teal);stroke-width:3}
.crop-overlay polygon{fill:rgba(15,118,110,.15);stroke:var(--teal);stroke-width:2}
.scan-actions,.split-line{margin-top:12px}
.scan-actions{display:flex;gap:10px}
.scan-actions .primary{flex:1}
.page-strip{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.page-strip img{width:64px;height:64px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.split-line h4{margin:0 0 6px;font-size:14px}
.split-sum{text-align:right;font-size:15px;margin:8px 2px 0}

/* Status */
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;text-align:center;box-shadow:var(--shadow)}
.stat.big-stat{grid-column:1 / -1;background:var(--teal);color:#fff;border:none}
.stat-num{font-size:34px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1}
.big-stat .stat-num{font-size:48px}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px}
.big-stat .stat-label{color:#d1fae5}
.progress{height:12px;background:var(--line);border-radius:999px;overflow:hidden;margin:16px 2px 6px}
.progress-bar{height:100%;width:0;background:var(--teal);transition:width .5s}
.recent{list-style:none;padding:0;margin:0}
.recent li{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:8px;box-shadow:var(--shadow)}
.recent .r-top{display:flex;justify-content:space-between;font-weight:600;font-size:15px}
.recent .r-hours{color:var(--teal-d)}
.recent .r-note{color:var(--muted);font-size:14px;margin-top:4px}
.seg{display:inline-flex;background:#eef2f1;border:1px solid var(--line);border-radius:999px;padding:3px;margin:0 0 12px}
.seg-btn{background:none;border:none;border-radius:999px;padding:7px 18px;font-size:14px;color:var(--muted);font-weight:600}
.seg-btn.active{background:#fff;color:var(--teal-d);box-shadow:var(--shadow)}
.recent li.voided{opacity:.55}
.recent li.voided .r-top span:first-child{text-decoration:line-through}
.r-actions{margin-top:8px;display:flex;gap:8px}
.r-void,.r-restore{font-size:13px;border-radius:999px;padding:5px 12px;border:1px solid var(--line);background:#fff}
.r-void{color:var(--red)} .r-restore{color:var(--teal-d)}
.r-badge{font-size:11px;color:var(--red);border:1px solid #fecaca;background:#fef2f2;border-radius:999px;padding:2px 8px;margin-left:8px}

/* Toast (Saved · Undo) */
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(var(--tab-h) + env(safe-area-inset-bottom) + 12px);z-index:40;
  display:flex;align-items:center;gap:14px;background:#1f2937;color:#fff;border-radius:999px;padding:12px 18px;box-shadow:0 6px 20px rgba(0,0,0,.25);max-width:92%}
.toast button{background:none;border:none;color:#5eead4;font-weight:700;font-size:15px;padding:2px 4px}

/* Tab bar */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:20;
  display:flex;background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);height:calc(var(--tab-h) + env(safe-area-inset-bottom));
}
.tab{flex:1;background:none;border:none;color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px}
.tab .tab-ico{font-size:22px;filter:grayscale(1);opacity:.6}
.tab.active{color:var(--teal)}
.tab.active .tab-ico{filter:none;opacity:1}

/* Net / queue bar */
.netbar{position:fixed;left:0;right:0;top:0;z-index:30;padding:calc(env(safe-area-inset-top) + 6px) 12px 6px;font-size:13px;text-align:center;color:#fff}
.netbar.offline{background:var(--muted)}
.netbar.queued{background:var(--amber)}
.netbar.syncing{background:var(--teal)}
.netbar[hidden]{display:none}

/* Modal */
.modal{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;padding:24px}
.modal[hidden]{display:none}
.modal-card{background:#fff;border-radius:16px;padding:22px;max-width:360px;width:100%;text-align:center}
.modal-choices{display:flex;gap:12px;margin-top:16px}
.modal-choices .big{font-size:20px}