:root{
  --navy:#13294B; --deep:#0C1C36; --paper:#EEF2F5; --buoy:#F2B705;
  --slate:#5B6B7F; --line:#D5DDE5; --white:#fff; --red:#B42318;
  --safe-t:env(safe-area-inset-top,0px); --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--paper);color:var(--navy);
  font:16px/1.4 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",sans-serif;
  -webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}
body.locked{overflow:hidden}
.hidden{display:none!important}
button,input,select,textarea{font:inherit;color:inherit}
.file{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
:focus-visible{outline:3px solid var(--buoy);outline-offset:2px}

/* login */
.login{min-height:100vh;display:grid;place-items:center;background:var(--navy);padding:24px}
.login-card{width:100%;max-width:320px;display:grid;gap:12px;text-align:center;color:var(--white)}
.login-icon{width:72px;height:72px;border-radius:16px;margin:0 auto}
.login h1{margin:0 0 8px;font-size:28px;letter-spacing:-.02em}
.login input{padding:14px;border-radius:10px;border:0;font-size:17px;color:var(--navy)}
.err{color:#FFB4A8;min-height:1.2em;margin:0}

/* header */
.top{background:var(--navy);color:var(--white);padding:calc(var(--safe-t) + 14px) 20px 52px}
.top-row{display:flex;justify-content:space-between;align-items:center;gap:12px}
.top select{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);color:var(--white);
  border-radius:8px;padding:6px 10px;max-width:65%;font-size:15px}
.top select option{color:var(--navy)}
.count{color:#B7C4D6;font-size:14px}
.totals{margin-top:18px}
.total{display:flex;align-items:baseline;gap:8px}
.total-amt{font-size:44px;font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1.05}
.total + .total .total-amt{font-size:26px}
.total-cur{color:#B7C4D6;font-size:15px}
.owed{margin:10px 0 0;color:var(--buoy);font-size:14px}

/* actions */
.actions{padding:0 16px;margin-top:-32px}
.snap{display:flex;align-items:center;justify-content:center;gap:12px;background:var(--buoy);color:var(--deep);
  font-size:20px;font-weight:700;border-radius:18px;height:72px;cursor:pointer;
  box-shadow:0 6px 0 #C79600;transition:transform .08s,box-shadow .08s;user-select:none}
.snap:active{transform:translateY(4px);box-shadow:0 2px 0 #C79600}
.snap svg{width:30px;height:30px}
.alt-actions{display:flex;justify-content:space-between;padding:12px 4px 0}
.linkbtn{background:none;border:0;padding:8px 0;color:var(--navy);font-size:15px;text-decoration:underline;
  text-underline-offset:3px;cursor:pointer}

/* list */
.list{list-style:none;margin:16px 0 0;padding:0 16px}
.day{font-size:13px;color:var(--slate);padding:16px 4px 6px;font-weight:600;margin:0}
.rows{background:var(--white);border-radius:12px;overflow:hidden}
.item{display:flex;align-items:center;gap:12px;width:100%;text-align:left;background:var(--white);
  border:0;border-top:1px solid var(--line);padding:10px 12px;cursor:pointer}
.item:first-child{border-top:0}
.item:active{background:var(--paper)}
.thumb{width:48px;height:48px;border-radius:8px;object-fit:cover;flex:none;background:var(--paper)}
.thumb.none{display:grid;place-items:center;font-size:10px;color:var(--slate);text-align:center;line-height:1.1}
.item-main{flex:1;min-width:0;display:grid}
.vendor{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.meta{font-size:13px;color:var(--slate)}
.tag{font-style:normal;background:#FFF3C4;color:#6B5200;border-radius:4px;padding:0 5px;margin-left:4px;font-size:12px}
.amt{font-weight:700;font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}
.amt small{display:block;font-weight:400;font-size:11px;color:var(--slate)}
.empty{text-align:center;color:var(--slate);padding:32px 32px 0;margin:0}
.tools{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:center;padding:32px 16px calc(var(--safe-b) + 32px);font-size:15px}
.tools a{color:var(--navy);text-underline-offset:3px}

/* sheet */
.sheet{position:fixed;inset:0;background:var(--white);overflow-y:auto;z-index:10;
  -webkit-overflow-scrolling:touch;animation:up .22s ease-out}
@keyframes up{from{transform:translateY(24px);opacity:0}}
@media (prefers-reduced-motion:reduce){.sheet{animation:none}.snap{transition:none}}
#expForm{padding:0 16px calc(var(--safe-b) + 32px);max-width:560px;margin:0 auto;display:grid;gap:14px}
.sheet-bar{position:sticky;top:0;background:var(--white);display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;padding:calc(var(--safe-t) + 8px) 0 8px;border-bottom:1px solid var(--line);z-index:2}
.sheet-bar .linkbtn{justify-self:start;text-decoration:none;font-size:17px}
.photo-area{display:grid;gap:8px}
.preview{width:100%;max-height:42vh;object-fit:contain;background:var(--paper);border-radius:12px}
.photo-actions{display:flex;gap:8px}
.btn-sec{flex:1;display:flex;align-items:center;justify-content:center;min-height:44px;border:1px solid var(--line);
  background:var(--paper);border-radius:10px;font-size:15px;cursor:pointer;padding:0 8px}
.field{display:grid;gap:6px}
.field > span{font-size:13px;font-weight:600;color:var(--slate)}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;font-size:17px;background:var(--white)}
.field input[type=date]{min-height:48px;-webkit-appearance:none;appearance:none}
.amount-field input{font-size:36px;font-weight:700;padding:8px 12px;font-variant-numeric:tabular-nums}
.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.seg{display:flex;background:var(--paper);border-radius:10px;padding:3px}
.seg label{flex:1}
.seg span{display:block;text-align:center;padding:9px 4px;border-radius:8px;font-size:15px;cursor:pointer}
.seg input:checked + span{background:var(--navy);color:var(--white);font-weight:600}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips span{display:block;padding:8px 12px;border:1px solid var(--line);border-radius:999px;font-size:15px;cursor:pointer}
.chips input:checked + span{background:var(--navy);border-color:var(--navy);color:var(--white)}
.seg input:focus-visible + span,.chips input:focus-visible + span{outline:3px solid var(--buoy)}
.btn-primary{background:var(--navy);color:var(--white);border:0;border-radius:12px;min-height:54px;font-size:18px;font-weight:700;cursor:pointer}
.btn-primary:disabled{opacity:.6}
.login .btn-primary{background:var(--buoy);color:var(--deep)}
.btn-danger{background:none;border:0;color:var(--red);min-height:44px;font-size:16px;cursor:pointer}

.toast{position:fixed;left:50%;bottom:calc(var(--safe-b) + 24px);transform:translate(-50%,20px);opacity:0;
  background:var(--deep);color:var(--white);padding:12px 18px;border-radius:12px;font-size:15px;z-index:20;
  max-width:90vw;text-align:center;transition:opacity .2s,transform .2s;pointer-events:none}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.err{background:var(--red)}