:root{
  --bg:#f4f6fb; --panel:#fff; --ink:#1f2937; --muted:#6b7280; --line:#e5e7eb;
  --brand:#2563eb; --brand-soft:#e8efff; --ok:#16a34a; --ok-soft:#e9f8ef;
  --err:#dc2626; --err-soft:#fdecec; --warn:#ea580c; --warn-soft:#fff1e6;
  --purple:#7c3aed; --purple-soft:#f1eaff; --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;font:14px/1.5 "Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand);text-decoration:none}
h1{font-size:20px;margin:0 0 16px}
h2{font-size:15px;margin:0 0 12px}

/* ---------- khung ---------- */
.topbar{position:fixed;inset:0 0 auto 0;height:56px;background:var(--panel);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:24px;padding:0 20px;z-index:10}
.brand{font-weight:700;font-size:16px;width:196px}
.fx{color:var(--muted)} .fx b{color:var(--brand)}
.topbar .spacer{flex:1}
.who{display:flex;align-items:center;gap:10px}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-weight:700}
.role{font-size:12px;color:var(--muted)}
.sidebar{position:fixed;top:56px;bottom:0;left:0;width:216px;background:var(--panel);border-right:1px solid var(--line);padding:16px 12px}
.sidebar a{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;color:var(--ink);margin-bottom:2px}
.sidebar a:hover{background:var(--bg)}
.sidebar a.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.sidebar .soon{color:var(--muted);font-size:11px;margin-left:auto}
.sidebar .sep{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:16px 12px 6px}
.main{margin:56px 0 0 216px;padding:24px}

/* ---------- thành phần ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:18px}
.grid{display:grid;gap:14px}
.g3{grid-template-columns:repeat(3,1fr)} .g4{grid-template-columns:repeat(4,1fr)}
.stat{background:var(--bg);border-radius:8px;padding:14px}
.stat .lbl{color:var(--muted);font-size:12px}
.stat .num{font-size:24px;font-weight:700}
.need{background:#fff4f4;border-color:#fbd5d5}
table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);
  border-bottom:1px solid var(--line);padding:10px 8px;white-space:nowrap}
td{border-bottom:1px solid var(--line);padding:9px 8px;vertical-align:middle}
tr.off td{color:var(--muted)}
.pill{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600}
.pill.ok{background:var(--ok-soft);color:var(--ok)} .pill.off{background:#f1f2f4;color:var(--muted)}
.pill.r-admin{background:var(--purple-soft);color:var(--purple)} .pill.r-seller{background:var(--brand-soft);color:var(--brand)}
.pill.r-ff{background:var(--warn-soft);color:var(--warn)} .pill.r-sup{background:#e6f7f7;color:#0f766e}
input,select,textarea{font:inherit;padding:7px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;min-width:0}
input:focus,select:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}
.btn{display:inline-block;font:inherit;font-weight:600;padding:7px 14px;border-radius:8px;border:1px solid var(--brand);
  background:var(--brand);color:#fff;cursor:pointer}
.btn.ghost{background:#fff;color:var(--brand)}
.btn.sm{padding:4px 10px;font-size:13px}
.btn.danger{background:#fff;color:var(--err);border-color:#f3c0c0}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.inline{display:inline}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px}
.flash.ok{background:var(--ok-soft);color:#14532d} .flash.err{background:var(--err-soft);color:#7f1d1d}
.secret{background:#fffbe6;border:1px solid #fde68a;border-radius:8px;padding:12px 14px;margin-bottom:14px}
.secret code{font-size:16px;font-weight:700;background:#fff;padding:2px 8px;border-radius:6px}
.muted{color:var(--muted)} .small{font-size:12px}
details summary{cursor:pointer;color:var(--brand)}
details[open]{background:var(--bg);border-radius:8px;padding:8px}

/* ---------- đăng nhập ---------- */
.auth{min-height:100vh;display:grid;place-items:center}
.auth .card{width:360px}
.auth label{display:block;font-weight:600;margin:12px 0 4px}
.auth input{width:100%}
.auth .btn{width:100%;margin-top:18px;padding:10px}
.sidebar a.disabled{color:#9ca3af;cursor:default}
.sidebar a.disabled:hover{background:none}

/* ---------- Phần 3: bảng đơn ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.tab{padding:6px 12px;border-radius:8px;background:#fff;border:1px solid var(--line);color:var(--ink);font-size:13px}
.tab.on{background:var(--brand);border-color:var(--brand);color:#fff}
.tab .n{display:inline-block;min-width:20px;text-align:center;margin-left:6px;padding:0 6px;border-radius:999px;
  background:var(--bg);color:var(--ink);font-size:12px;font-weight:600}
.tab.on .n{background:#fff;color:var(--brand)}
.tab.a-orange .n{background:var(--warn-soft);color:var(--warn)} .tab.a-purple .n{background:var(--purple-soft);color:var(--purple)}
.tab.a-overdue .n{background:var(--err-soft);color:var(--err)}
.filters{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px}
.otable td{vertical-align:top}
.otable tr.al-orange td{background:#fff7ef} .otable tr.al-purple td{background:#f7f2ff} .otable tr.al-overdue td{background:#fff1f1}
.otable tr.al-orange td:first-child{box-shadow:inset 4px 0 var(--warn)}
.otable tr.al-purple td:first-child{box-shadow:inset 4px 0 var(--purple)}
.otable tr.al-overdue td:first-child{box-shadow:inset 4px 0 var(--err)}
.badge{display:inline-block;padding:1px 8px;border-radius:999px;font-size:12px;font-weight:600}
.badge.orange{background:var(--warn-soft);color:var(--warn)} .badge.purple{background:var(--purple-soft);color:var(--purple)}
.badge.overdue{background:var(--err-soft);color:var(--err)}
.st{display:inline-block;padding:2px 9px;border-radius:6px;font-size:12px;font-weight:600;background:#eef2f7;color:#334155;white-space:nowrap}
.st.s-NEW{background:var(--brand-soft);color:var(--brand)} .st.s-PENDING{background:#fff8db;color:#a16207}
.st.s-PRODUCING,.st.s-PRODUCTION-DONE{background:#e6f4ea;color:#166534} .st.s-AWAITING-SHIP{background:#e0f2fe;color:#0369a1}
.st.s-SHIPPED,.st.s-DELIVERED{background:#dcfce7;color:#15803d}
.st.s-CANCEL,.st.s-REFUNDED,.st.s-CANCEL-SHIP{background:var(--err-soft);color:var(--err)}
.thumb{width:64px;height:64px;object-fit:cover;border-radius:8px;border:1px solid var(--line);cursor:zoom-in;background:#fff}
.nothumb{width:64px;height:64px;border-radius:8px;border:1px dashed #f59e0b;display:grid;place-items:center;
  font-size:11px;color:#b45309;text-align:center;background:#fffbeb}
.item{padding:4px 0} .item + .item{border-top:1px dashed var(--line)}
.kv{font-size:12px;color:var(--muted);white-space:pre-line}
.lightbox{position:fixed;inset:0;background:rgba(15,23,42,.8);display:none;place-items:center;z-index:50;cursor:zoom-out}
.lightbox.open{display:grid} .lightbox img{max-width:92vw;max-height:92vh;border-radius:10px;background:#fff}
.pastezone{border:2px dashed #cbd5e1;border-radius:10px;padding:12px;min-height:84px;display:flex;gap:12px;align-items:center;
  background:#fff;outline:none}
.pastezone:focus,.pastezone.over{border-color:var(--brand);background:var(--brand-soft)}
.pastezone.done{border-color:var(--ok);background:var(--ok-soft)}
.pastezone .pz-msg{font-size:13px;color:var(--muted)}
.pager{display:flex;gap:6px;margin-top:12px}
.ellipsis{max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sumbar{padding:12px 16px;border-bottom:1px solid var(--line);font-size:13px}
.sumbox{border:1px solid var(--line);border-radius:6px;padding:3px 10px;font-size:12px;color:var(--muted)}
.sumbox b{color:var(--ink);font-size:13px;margin-right:4px}
.otable td.hl{background:#fffbea}
.otable tr.al-orange td.hl,.otable tr.al-purple td.hl,.otable tr.al-overdue td.hl{background:transparent}
.otable th{font-size:11px}