:root{
  --bg:#f4f6fb;--panel:#fff;--text:#0f172a;--muted:#64748b;--line:#e2e8f0;
  --primary:#2563eb;--primary-600:#1d4ed8;--accent:#f59e0b;--danger:#dc2626;--ok:#16a34a;--warn:#d97706;
  --radius:14px;--shadow:0 1px 2px rgba(15,23,42,.05),0 8px 24px -12px rgba(15,23,42,.15);
  --side:260px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
h1{font-size:26px;margin:0 0 6px;letter-spacing:-.02em}h2{font-size:18px;margin:0 0 12px}h3{font-size:15px;margin:0 0 8px}
.muted{color:var(--muted)}.small{font-size:13px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.accent{color:var(--accent)}
.logo-mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;font-weight:800;font-size:12px;margin-right:6px}

/* layout */
.admin-body{display:flex;min-height:100vh}
.sidebar{width:var(--side);background:#0f172a;color:#cbd5e1;display:flex;flex-direction:column;padding:18px 14px;position:sticky;top:0;height:100vh;overflow-y:auto;flex-shrink:0}
.sidebar .brand{color:#fff;font-weight:800;font-size:19px;display:flex;align-items:center;padding:4px 8px 16px;letter-spacing:-.02em}
.sidebar nav{display:flex;flex-direction:column;gap:2px}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;color:#cbd5e1;font-weight:500;font-size:14px}
.nav-item svg{width:18px;height:18px;fill:currentColor;opacity:.75}
.nav-item:hover{background:rgba(255,255,255,.06);text-decoration:none;color:#fff}
.nav-item.active{background:var(--primary);color:#fff}
.side-campaign{background:rgba(255,255,255,.06);border-radius:10px;padding:10px 12px;margin:0 0 12px}
.side-campaign-name{color:#fff;font-weight:700;font-size:14px}
.side-campaign-url{color:#93c5fd;font-size:12px}
.side-sep{height:1px;background:rgba(255,255,255,.08);margin:12px 0}
.side-user{margin-top:auto;padding-top:14px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:13px;color:#e2e8f0}
.main{flex:1;padding:28px 32px;max-width:1400px;min-width:0}
.menu-toggle{display:none}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.page-head .actions{display:flex;gap:8px;flex-wrap:wrap}

/* cards */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin-bottom:20px}
.card h2{display:flex;align-items:center;justify-content:space-between}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:1100px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
.stat .label{color:var(--muted);font-size:13px;font-weight:500}
.stat .value{font-size:28px;font-weight:800;letter-spacing:-.03em;margin-top:2px}
.stat .sub{color:var(--muted);font-size:12px}

/* forms */
label{display:block;font-weight:600;font-size:13px;margin:0 0 12px;color:#334155}
label input,label select,label textarea{margin-top:5px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=url],input[type=tel],input[type=datetime-local],input[type=date],select,textarea{
  width:100%;padding:10px 12px;border:1px solid #cbd5e1;border-radius:9px;font:inherit;font-size:14px;background:#fff;color:var(--text);transition:border .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
textarea{min-height:90px;resize:vertical}
input[type=color]{width:46px;height:38px;padding:2px;border:1px solid #cbd5e1;border-radius:8px;background:#fff;vertical-align:middle}
.check{display:flex;align-items:flex-start;gap:10px;font-weight:500;padding:8px 0;margin:0;cursor:pointer}
.check input{margin-top:3px;width:17px;height:17px;accent-color:var(--primary)}
.check small{display:block;color:var(--muted);font-weight:400}
.row{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.hint{font-size:12px;color:var(--muted);margin-top:4px;font-weight:400}
fieldset{border:1px solid var(--line);border-radius:12px;padding:14px 18px 6px;margin:0 0 18px}
legend{font-weight:700;padding:0 6px;font-size:14px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;border-radius:9px;border:1px solid transparent;font:inherit;font-weight:600;font-size:14px;cursor:pointer;background:#fff;color:var(--text);border-color:#cbd5e1;transition:all .15s;white-space:nowrap}
.btn:hover{text-decoration:none;filter:brightness(.97)}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-600)}
.btn-danger{background:#fff;color:var(--danger);border-color:#fecaca}.btn-danger:hover{background:#fef2f2}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.2);color:#e2e8f0}
.btn-sm{padding:6px 10px;font-size:13px;border-radius:7px}
.btn-block{width:100%}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#1f1300}

/* tables */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:#f8fafc}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;background:#e2e8f0;color:#334155}
.badge-ok{background:#dcfce7;color:#166534}.badge-warn{background:#fef3c7;color:#92400e}.badge-bad{background:#fee2e2;color:#991b1b}.badge-info{background:#dbeafe;color:#1e40af}.badge-dark{background:#0f172a;color:#fff}

/* misc */
.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-weight:500;border:1px solid}
.alert-success{background:#ecfdf5;color:#065f46;border-color:#a7f3d0}.alert-error{background:#fef2f2;color:#991b1b;border-color:#fecaca}.alert-info{background:#eff6ff;color:#1e40af;border-color:#bfdbfe}
.progress{height:8px;background:#e2e8f0;border-radius:999px;overflow:hidden}
.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),#7c3aed);border-radius:999px}
.empty{padding:36px;text-align:center;color:var(--muted)}
.kv{display:grid;grid-template-columns:160px 1fr;gap:6px 14px;font-size:14px}.kv dt{color:var(--muted)}.kv dd{margin:0}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:18px;flex-wrap:wrap}
.tabs a{padding:10px 14px;border-bottom:2px solid transparent;color:var(--muted);font-weight:600;margin-bottom:-1px}
.tabs a.active,.tabs a:hover{color:var(--primary);border-color:var(--primary);text-decoration:none}
.copy{cursor:pointer;border-bottom:1px dashed #94a3b8}
.swatch{display:inline-block;width:14px;height:14px;border-radius:4px;vertical-align:middle;margin-right:4px;border:1px solid rgba(0,0,0,.1)}
.perm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:4px 16px}
.bars{display:flex;align-items:flex-end;gap:6px;height:120px;padding-top:10px}
.bars>div{flex:1;background:linear-gradient(180deg,var(--primary),#7c3aed);border-radius:6px 6px 2px 2px;position:relative;min-height:3px}
.bars>div span{position:absolute;bottom:100%;left:50%;transform:translateX(-50%);font-size:10px;color:var(--muted);white-space:nowrap;margin-bottom:2px}
.layout-pick{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}
.layout-pick label{border:2px solid var(--line);border-radius:12px;padding:10px;cursor:pointer;margin:0}
.layout-pick label:has(input:checked){border-color:var(--primary);background:#eff6ff}
.layout-pick input{display:none}
.layout-pick .thumb{height:80px;border-radius:8px;margin-bottom:8px;background:#e2e8f0;position:relative;overflow:hidden}
.thumb.classic::before{content:"";position:absolute;inset:0 0 50%;background:#94a3b8}.thumb.classic::after{content:"";position:absolute;left:8px;right:8px;bottom:8px;height:10px;background:#fff;border-radius:3px}
.thumb.modern::before{content:"";position:absolute;inset:0 45% 0 0;background:#94a3b8}.thumb.modern::after{content:"";position:absolute;right:8px;top:8px;bottom:8px;width:35%;background:#fff;border-radius:4px}
.thumb.bold{background:#0f172a}.thumb.bold::before{content:"";position:absolute;left:8px;top:14px;width:60%;height:14px;background:#f59e0b;border-radius:2px}.thumb.bold::after{content:"";position:absolute;left:8px;top:34px;width:80%;height:6px;background:#475569;border-radius:2px}
.thumb.minimal{background:#f8fafc}.thumb.minimal::before{content:"";position:absolute;left:25%;right:25%;top:12px;height:8px;background:#cbd5e1;border-radius:3px}.thumb.minimal::after{content:"";position:absolute;left:12px;right:12px;bottom:10px;height:30px;background:#fff;border:1px solid #e2e8f0;border-radius:6px}

/* auth */
.auth-body{display:grid;place-items:center;min-height:100vh;background:radial-gradient(1200px 600px at 10% -10%,#dbeafe,transparent),radial-gradient(900px 500px at 110% 110%,#fde68a,transparent),var(--bg)}
.auth-wrap{width:100%;max-width:400px;padding:20px}
.auth-logo{display:flex;justify-content:center;align-items:center;font-weight:800;font-size:24px;color:var(--text);margin-bottom:18px}
.auth-card h1{font-size:22px}

@media(max-width:900px){
  .sidebar{position:fixed;left:0;top:0;transform:translateX(-100%);transition:transform .2s;z-index:50}
  body.nav-open .sidebar{transform:none}
  .menu-toggle{display:inline-block;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 10px;margin-bottom:14px;font-size:18px}
  .main{padding:18px}
}