/* Giao diện chung cho trang quản trị và cổng cộng tác viên */
:root{
  --navy:#040F3E; --blue:#0B5ED7; --blue-dark:#0A4FB5; --blue-tint:#E8F0FD;
  --orange:#EF5627; --orange-dark:#D9451A; --orange-tint:#FDEBE5;
  --green:#15803D; --green-tint:#E3F5EA; --amber:#A16207; --amber-tint:#FDF3D7; --grey-tint:#ECEEF2;
  --ground:#F0F1F4; --paper:#FFFFFF; --line:#E1E3EA; --ink:#040F3E; --muted:#4B5168; --faint:#6B7189;
  --font:'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
body{margin:0;background:var(--ground);color:var(--ink);font:15px/1.55 var(--font);-webkit-font-smoothing:antialiased}
a{color:var(--blue)}
:focus-visible{outline:3px solid var(--orange);outline-offset:2px}
h1,h2,h3{margin:0;letter-spacing:-.01em;text-wrap:balance}
[hidden]{display:none!important}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:42px;padding:9px 16px;border-radius:10px;border:1.5px solid transparent;font:600 14px var(--font);cursor:pointer;text-decoration:none;white-space:nowrap;background:var(--paper);color:var(--ink);border-color:var(--line)}
.btn:hover{border-color:var(--blue)}
.btn-primary{background:var(--orange);color:#fff;border-color:var(--orange)}.btn-primary:hover{background:var(--orange-dark);border-color:var(--orange-dark)}
.btn-blue{background:var(--blue);color:#fff;border-color:var(--blue)}.btn-blue:hover{background:var(--blue-dark)}
.btn-danger{color:#B42318}.btn-danger:hover{border-color:#B42318}
.btn-sm{min-height:34px;padding:5px 12px;font-size:13px}
.btn:disabled{opacity:.6;cursor:wait}
input,select,textarea{font:15px var(--font);color:var(--ink);background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:9px 12px;width:100%;min-height:42px}
textarea{min-height:84px;resize:vertical;line-height:1.5}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue)}
label.f{display:flex;flex-direction:column;gap:5px;font-weight:600;font-size:13px;color:var(--muted)}
label.f>span.hint{font-weight:400;color:var(--faint)}
.check{display:flex;align-items:center;gap:10px;font-weight:600;font-size:14px}
.check input{width:20px;height:20px;min-height:0;accent-color:var(--blue)}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:20px}
.muted{color:var(--muted)} .small{font-size:13px}
.num{font-variant-numeric:tabular-nums}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap}
.p-new{background:var(--blue-tint);color:var(--blue-dark)}
.p-contacting,.p-pending{background:var(--amber-tint);color:var(--amber)}
.p-won,.p-paid,.p-active{background:var(--green-tint);color:var(--green)}
.p-lost,.p-cancelled,.p-locked{background:var(--grey-tint);color:var(--muted)}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--navy);color:#fff;padding:12px 18px;border-radius:12px;font-weight:600;z-index:100;box-shadow:0 10px 30px rgba(4,15,62,.3);max-width:calc(100% - 32px)}
.toast.err{background:#B42318}
.err-msg{background:var(--orange-tint);color:#9A2A0A;border-radius:10px;padding:10px 14px;font-size:14px}

/* Đăng nhập */
.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px max(16px,env(safe-area-inset-left,0px))}
.auth .card{width:100%;max-width:420px;padding:32px 28px;display:flex;flex-direction:column;gap:14px}
.auth .logo{display:flex;align-items:center;gap:8px}
.auth .logo img{height:40px}
.tag{font-weight:800;font-size:12px;letter-spacing:.14em;color:#fff;background:var(--navy);padding:3px 8px;border-radius:6px}

/* Bảng */
.table-wrap{overflow-x:auto;background:var(--paper);border:1px solid var(--line);border-radius:16px}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);font-weight:700;padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap;background:#FAFBFC}
td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
tbody tr.click{cursor:pointer}
tbody tr.click:hover{background:#F7F9FD}
td b{font-weight:600}
.empty{padding:40px 20px;text-align:center;color:var(--muted)}

/* Hộp thoại */
dialog{border:0;border-radius:18px;padding:0;width:min(560px,calc(100% - 24px));max-height:calc(100% - 24px);box-shadow:0 24px 60px rgba(4,15,62,.3);color:var(--ink)}
dialog::backdrop{background:rgba(4,15,62,.45)}
.dlg-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 22px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff;z-index:1}
.dlg-head h3{font-size:18px}
.dlg-body{padding:20px 22px;display:flex;flex-direction:column;gap:14px}
.dlg-foot{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding:16px 22px;border-top:1px solid var(--line);position:sticky;bottom:0;background:#fff}
.x{border:0;background:var(--ground);width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:20px;line-height:1;color:var(--ink)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;font-size:14px}
.kv dt{color:var(--muted)} .kv dd{margin:0;font-weight:600;word-break:break-word}

/* Ô thống kê */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.stat{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:16px 18px}
.stat .v{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.2}
.stat .l{font-size:13px;color:var(--muted)}
.stat.hl{border-color:var(--orange);background:var(--orange-tint)}

/* Ô copy link */
.copybox{display:flex;gap:8px}
.copybox input{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px}
@media (max-width:520px){.copybox{flex-direction:column}}