:root{
  --bg:#f4f6fb; --surface:#ffffff; --surface-2:#fbfcfe;
  --ink:#0f172a; --muted:#64748b; --line:#e5e8f0;
  --brand:#2563eb; --brand-2:#1d4ed8; --brand-soft:#eef3ff;
  --ok:#0f9d58; --ok-soft:#e8f7ee; --warn:#b45309; --warn-soft:#fef3e2;
  --bad:#dc2626; --bad-soft:#fdecec; --violet:#6d28d9; --violet-soft:#f1ecfe;
  --radius:14px; --shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.05);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--ink);font-size:14.5px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.01em}
p{margin:0 0 10px}
small,.small{font-size:12.5px}
.muted{color:var(--muted)}
.mono{font-family:var(--mono);font-size:12.5px}
.nowrap{white-space:nowrap}

/* layout */
.app-shell{display:flex;min-height:100vh}
.sidebar{width:236px;flex:0 0 236px;background:#0b1220;color:#c7d2e5;padding:20px 14px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:4px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;letter-spacing:-.02em;padding:6px 10px 18px}
.brand .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,#3b82f6,#8b5cf6);display:grid;place-items:center;color:#fff;font-size:13px;font-weight:800;letter-spacing:-.04em}
.brand span.sub{display:block;font-size:10px;font-weight:600;letter-spacing:.14em;color:#7f8ea8;text-transform:uppercase}
.nav{display:flex;flex-direction:column;gap:2px;margin-top:4px}
.nav a{display:flex;align-items:center;gap:10px;color:#aebbd0;padding:9px 11px;border-radius:9px;font-weight:500;font-size:13.5px;text-decoration:none}
.nav a .ic{width:18px;text-align:center;opacity:.85;font-size:14px}
.nav a:hover{background:#141d31;color:#fff;text-decoration:none}
.nav a.active{background:#17233d;color:#fff;box-shadow:inset 3px 0 0 #60a5fa}
.nav .group-label{font-size:10px;text-transform:uppercase;letter-spacing:.14em;color:#5b6a83;padding:16px 11px 6px}
.sidebar-foot{margin-top:auto;border-top:1px solid #1b2740;padding-top:12px;display:flex;flex-direction:column;gap:8px}
.who{display:flex;align-items:center;gap:9px;padding:2px 4px}
.avatar{width:30px;height:30px;border-radius:50%;background:#1e293b;color:#cbd5e1;display:grid;place-items:center;font-size:12px;font-weight:700}
.who .name{color:#e2e8f0;font-size:12.5px;font-weight:600;line-height:1.2}
.who .org{color:#7f8ea8;font-size:11px}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{background:rgba(244,246,251,.86);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding:20px 32px;display:flex;align-items:flex-start;gap:16px;position:sticky;top:0;z-index:20}
.topbar h1{font-size:21px;letter-spacing:-.02em}
.topbar .sub{color:var(--muted);font-size:13px;margin-top:2px}
.topbar .actions{margin-left:auto;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.content{padding:26px 32px 60px;max-width:1240px;width:100%}

/* cards + grid */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.card.pad-lg{padding:26px}
.card h3{font-size:15px;margin-bottom:4px}
.card .card-sub{color:var(--muted);font-size:12.5px;margin:-2px 0 14px}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.kpi{padding:18px 20px}
.kpi .label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em;font-weight:600}
.kpi .value{font-size:28px;font-weight:700;letter-spacing:-.03em;margin-top:6px;line-height:1.1}
.kpi .foot{color:var(--muted);font-size:12px;margin-top:6px}
.row{display:flex;align-items:center;gap:10px}
.row.wrap{flex-wrap:wrap}
.spacer{flex:1}
.section-head{display:flex;align-items:center;gap:12px;margin:26px 0 12px}
.section-head h2{font-size:16px}
.section-head .spacer{flex:1}

/* buttons + forms */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid transparent;background:var(--brand);color:#fff;padding:9px 15px;border-radius:9px;font-weight:600;font-size:13px;cursor:pointer;text-decoration:none;white-space:nowrap;transition:.15s}
.btn:hover{background:var(--brand-2);text-decoration:none;color:#fff}
.btn.sec{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.sec:hover{background:var(--surface-2);color:var(--ink)}
.btn.danger{background:#fff;color:var(--bad);border-color:#f3c9c9}
.btn.danger:hover{background:var(--bad-soft);color:var(--bad)}
.btn.ghost{background:transparent;color:var(--muted);border-color:transparent}
.btn.ghost:hover{background:#eef1f7;color:var(--ink)}
.btn.sm{padding:6px 11px;font-size:12px;border-radius:8px}
.btn.block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}
label{display:block;font-size:12.5px;font-weight:600;color:#334155;margin-bottom:5px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=datetime-local],select,textarea{width:100%;border:1px solid #d9dfea;background:#fff;border-radius:9px;padding:9px 11px;font:inherit;font-size:13.5px;color:var(--ink);outline:none}
input:focus,select:focus,textarea:focus{border-color:#93b4f8;box-shadow:0 0 0 3px #e8efff}
textarea{min-height:100px;resize:vertical}
.field{margin-bottom:13px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.check{display:flex;gap:9px;align-items:flex-start;font-weight:500;color:#334155;font-size:12.8px;line-height:1.5}
.check input{margin-top:2px}
.help{color:var(--muted);font-size:12px;margin-top:4px}
.form-note{background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:12.5px;color:var(--muted)}
details.panel{border:1px solid var(--line);border-radius:12px;background:var(--surface-2)}
details.panel>summary{cursor:pointer;padding:14px 16px;font-weight:600;font-size:13.5px;list-style:none;display:flex;align-items:center;gap:8px}
details.panel>summary::-webkit-details-marker{display:none}
details.panel>summary:after{content:"+";margin-left:auto;color:var(--muted);font-weight:400;font-size:18px}
details.panel[open]>summary:after{content:"−"}
details.panel .panel-body{padding:4px 16px 16px;border-top:1px solid var(--line)}

/* tables */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th{text-align:left;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.08em;font-weight:650;padding:9px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:11px 10px;border-bottom:1px solid #edf0f6;vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:#fafbfe}

/* badges + progress */
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:650;letter-spacing:.02em;background:#eef1f7;color:#475569;white-space:nowrap}
.badge.ok{background:var(--ok-soft);color:#0b7a45}
.badge.warn{background:var(--warn-soft);color:#a34d05}
.badge.bad{background:var(--bad-soft);color:#b91c1c}
.badge.blue{background:var(--brand-soft);color:#1d4ed8}
.badge.violet{background:var(--violet-soft);color:#5b21b6}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;display:inline-block}
.progress{height:8px;background:#edf0f6;border-radius:999px;overflow:hidden}
.progress>span{display:block;height:100%;background:linear-gradient(90deg,#3b82f6,#6366f1);border-radius:999px;transition:width .4s ease}
.stat-line{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-top:7px}

/* alerts */
.toast{border-radius:11px;padding:12px 15px;font-size:13px;margin-bottom:18px;border:1px solid;display:flex;gap:9px;align-items:flex-start}
.toast.ok{background:#eefaf2;border-color:#bfe8ce;color:#09603a}
.toast.err{background:#fdeeee;border-color:#f5c6c6;color:#991b1b}
.empty{padding:34px 20px;text-align:center;color:var(--muted)}
.empty .big{font-size:22px;margin-bottom:6px;opacity:.5}

/* auth */
.auth{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr;background:var(--bg)}
.auth-brand{background:radial-gradient(1200px 600px at -10% -10%,#1e3a8a 0%,#0b1220 55%);color:#dbe4f5;padding:54px 56px;display:flex;flex-direction:column}
.auth-brand .brand{font-size:19px;padding:0}
.auth-brand h2{font-size:32px;line-height:1.15;letter-spacing:-.03em;color:#fff;margin:auto 0 14px;max-width:420px}
.auth-brand p{color:#9fb0ca;max-width:420px;font-size:14px}
.auth-brand ul{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-direction:column;gap:9px;color:#b9c6dc;font-size:13px}
.auth-brand li:before{content:"✓";color:#60a5fa;margin-right:8px;font-weight:700}
.auth-panel{display:flex;align-items:center;justify-content:center;padding:40px}
.auth-card{width:100%;max-width:380px}
.auth-card h1{font-size:24px;margin-bottom:6px}
.auth-card .lead{color:var(--muted);font-size:13.5px;margin-bottom:22px}
.auth-foot{margin-top:18px;font-size:13px;color:var(--muted)}

/* editor + preview */
.editor-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px;align-items:start}
.code{font-family:var(--mono);font-size:12.5px;line-height:1.6;min-height:420px;tab-size:2}
.preview{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;min-height:420px}
.preview iframe{width:100%;height:520px;border:0;background:#fff}
.pill-tabs{display:flex;gap:6px;background:#eef1f7;padding:4px;border-radius:10px;width:max-content}
.pill-tabs button{border:0;background:transparent;padding:6px 12px;border-radius:7px;font:inherit;font-size:12.5px;font-weight:600;color:#64748b;cursor:pointer}
.pill-tabs button.active{background:#fff;color:var(--ink);box-shadow:0 1px 2px rgba(15,23,42,.08)}
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.metric{border:1px solid var(--line);border-radius:11px;padding:13px 14px;background:var(--surface-2)}
.metric .n{font-size:20px;font-weight:700;letter-spacing:-.02em}
.metric .l{color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.07em;font-weight:600}
.divider{height:1px;background:var(--line);margin:16px 0}
.link-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.mono-box{font-family:var(--mono);font-size:12px;background:#f6f8fc;border:1px solid var(--line);border-radius:8px;padding:8px 10px;word-break:break-all}
.thumb{width:56px;height:40px;border-radius:6px;border:1px solid var(--line);object-fit:cover;background:#f4f6fb}
.list-hero{display:flex;gap:14px;align-items:flex-start}
.icon-lg{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);font-size:17px;font-weight:700}
.text-right{text-align:right}
.mt0{margin-top:0}.mt8{margin-top:8px}.mt12{margin-top:12px}.mt16{margin-top:16px}.mt24{margin-top:24px}
.mb0{margin-bottom:0}.mb8{margin-bottom:8px}.mb16{margin-bottom:16px}
.w-160{width:160px}.w-220{width:220px}.w-120{width:120px}

@media(max-width:1080px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:1fr 1fr}.editor-grid{grid-template-columns:1fr}}
@media(max-width:860px){
  .app-shell{display:block}
  .sidebar{position:static;width:100%;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;padding:12px}
  .brand{padding:0 8px;flex:1}
  .brand span.sub{display:none}
  .nav{flex-direction:row;flex-wrap:wrap;width:100%;margin-top:8px}
  .nav a{padding:7px 9px;font-size:12.5px}
  .nav .group-label{display:none}
  .sidebar-foot{margin:8px 0 0;border:0;padding:0;flex-direction:row;width:100%;justify-content:space-between}
  .content{padding:18px}
  .topbar{padding:15px 18px;position:static}
  .g4,.g3,.g2{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .auth{grid-template-columns:1fr}
  .auth-brand{display:none}
  .metric-strip{grid-template-columns:1fr 1fr}
}