:root {
  --ink: #0B2530; --accent: #FF5334; --bg: #F2F4F3; --card: #fff;
  --line: #C9D2D0; --dim: #5f6b68; --ok: #0E8C7F;
}
* { box-sizing: border-box; margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg); color: var(--ink); min-height: 100vh;
  padding: 28px 16px; display: flex; flex-direction: column; align-items: center; gap: 18px;
}
.hidden { display: none !important; }

.brand-lockup { display: flex; align-items: center; gap: 7px; }
.brand-lockup .wm { font-size: 22px; font-weight: 800; letter-spacing: -0.5px; }
.brand-lockup .qr { color: var(--accent); }
.brand-lockup .sub { color: var(--dim); font-size: 13px; margin-left: 6px; align-self: flex-end;
                     padding-bottom: 3px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px;
        padding: 22px; width: 100%; max-width: 380px; }
.auth h1 { font-size: 19px; margin-bottom: 4px; }
.note { color: var(--dim); font-size: 13px; line-height: 1.5; }
.auth input {
  width: 100%; margin: 14px 0 0; padding: 12px 14px; font-size: 15px;
  border: 1px solid var(--line); border-radius: 11px; font-family: inherit;
  background: #fbfcfc; color: var(--ink);
}
#tg-code { letter-spacing: 6px; text-indent: 6px; text-align: center; font-size: 20px; }
#tg-code::placeholder { letter-spacing: normal; text-indent: 0; font-size: 14px; }
.auth input:focus { outline: none; border-color: var(--accent); }
.btn {
  width: 100%; margin-top: 14px; padding: 12px; font-size: 15px; font-weight: 600;
  border: none; border-radius: 11px; background: var(--ink); color: #fff; cursor: pointer;
  font-family: inherit;
}
.btn:active { filter: brightness(0.92); }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn-ghost { width: 100%; margin-top: 8px; padding: 10px; font-size: 13.5px;
             border: none; background: none; color: var(--dim); cursor: pointer;
             font-family: inherit; }
.err { color: #C0392B; font-size: 13px; margin-top: 12px; min-height: 18px; }

#shell { width: 100%; max-width: 880px; display: flex; flex-direction: column; gap: 14px; }
.topbar { display: flex; justify-content: space-between; align-items: center;
          font-size: 14px; color: var(--dim); }
.topbar .btn-ghost { width: auto; margin: 0; }
.tabs { display: flex; gap: 6px; }
.tab { padding: 9px 16px; border: 1px solid var(--line); background: var(--card);
       border-radius: 10px; font-size: 14px; cursor: pointer; font-family: inherit;
       color: var(--ink); }
.tab.active { background: var(--ink); color: #fff; border-color: var(--ink); }
.stub { max-width: none; }
.stub p { margin-bottom: 8px; }

#shell .card { max-width: none; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
h2 { font-size: 17px; }
.dim { color: var(--dim); font-size: 12px; }
.mono { font-family: ui-monospace, 'SF Mono', Menlo, monospace; }
#sec-sellers { display: flex; flex-direction: column; gap: 12px; }
.seller { padding: 14px 16px; }
.seller.unreg { border-style: dashed; }
.s-head { cursor: pointer; }
.s-tags { display: flex; gap: 6px; flex: none; }
.pill { font-size: 12px; padding: 3px 10px; border-radius: 20px; background: #eef2f1;
        color: var(--dim); white-space: nowrap; }
.pill.on { background: rgba(14,140,127,0.12); color: var(--ok); }
.pill.off, .pill.warn { background: rgba(255,83,52,0.12); color: var(--accent); }
.s-edit { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 12px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.fld { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--dim); }
.fld input { padding: 9px 11px; font-size: 14px; border: 1px solid var(--line);
             border-radius: 9px; font-family: inherit; color: var(--ink); background: #fbfcfc; }
.fld input:focus { outline: none; border-color: var(--accent); }
.sub-h { font-size: 12px; text-transform: uppercase; letter-spacing: .04em;
         color: var(--dim); margin: 14px 0 8px; }
.s-actions { display: flex; gap: 10px; align-items: center; margin-top: 14px; }
.s-actions .btn { width: auto; margin: 0; padding: 10px 18px; }
.s-actions .btn-ghost { width: auto; margin: 0; }
.msg { font-size: 13px; margin-top: 8px; min-height: 16px; }
.msg.ok { color: var(--ok); } .msg.err { color: #C0392B; }
@media (max-width: 560px) { .grid2 { grid-template-columns: 1fr; } }

.sel { padding: 9px 11px; font-size: 14px; border: 1px solid var(--line);
       border-radius: 9px; font-family: inherit; color: var(--ink); background: #fbfcfc; }
.period { display: flex; gap: 8px; } .period .sel { flex: 1; }
.period input { width: 88px; padding: 9px 11px; font-size: 14px; border: 1px solid var(--line);
                border-radius: 9px; font-family: inherit; color: var(--ink); background: #fbfcfc; }
.prev { margin: 14px 0 4px; border: 1px solid var(--line); border-radius: 11px; overflow: hidden; }
.prev-row { display: flex; justify-content: space-between; gap: 12px; padding: 9px 13px;
            font-size: 13.5px; border-bottom: 1px solid var(--line); }
.prev-row:last-child { border-bottom: none; }
.prev-row.grand { background: #E9EEED; font-weight: 700; }
#sec-invoices { display: flex; flex-direction: column; gap: 12px; }
.inv-row .s-actions .btn-ghost { text-decoration: none; padding: 8px 12px;
                                 border: 1px solid var(--line); border-radius: 9px; }

#sec-dashboard { display: flex; flex-direction: column; gap: 12px; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.metric { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.m-label { font-size: 12px; color: var(--dim); }
.m-val { font-size: 22px; font-weight: 700; margin: 6px 0 3px; }
.m-sub { font-size: 12px; color: var(--dim); }
.dtab { width: 100%; border-collapse: collapse; margin-top: 8px; }
.dtab th, .dtab td { padding: 8px 10px; border-bottom: 1px solid var(--line); font-size: 13.5px; text-align: left; }
.dtab th { font-size: 12px; color: var(--dim); font-weight: 600; }
.dtab td.r, .dtab th:nth-child(n+2) { text-align: right; }
@media (max-width: 720px) { .metrics { grid-template-columns: 1fr 1fr; } }