:root {
  --bg:#f4f6fb;
  --panel:#fff;
  --soft:#f8fafc;
  --line:#e4e7ec;
  --ink:#111827;
  --muted:#667085;
  --brand:#6257ff;
  --brand2:#7c3aed;
  --cyan:#06b6d4;
  --shadow:0 18px 55px rgba(15,23,42,.12);
  --radius:24px;
  --font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

*{box-sizing:border-box}
body{margin:0;min-height:100vh;font-family:var(--font);color:var(--ink);background:radial-gradient(circle at top left,rgba(98,87,255,.14),transparent 38rem),linear-gradient(180deg,#fff 0%,var(--bg) 34%)}
button,input,textarea{font-family:inherit}
.app{display:grid;grid-template-columns:272px minmax(0,1fr);min-height:100vh}
.sidebar{height:100vh;position:sticky;top:0;border-right:1px solid var(--line);background:rgba(255,255,255,.9);backdrop-filter:blur(18px);padding:24px 18px}
.logo{display:flex;align-items:center;gap:12px;padding:0 8px 24px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.logo-mark{width:40px;height:40px;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 14px 34px rgba(98,87,255,.28)}
.logo strong{display:block;font-size:17px;letter-spacing:-.02em}.logo span{display:block;margin-top:2px;color:var(--muted);font-size:12px}
.nav-title{margin:20px 10px 8px;color:#98a2b3;font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.nav{width:100%;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:11px 12px;border:0;border-radius:13px;color:#344054;background:transparent;font-size:14px;font-weight:750;margin-bottom:4px;cursor:pointer;text-align:left}
.nav.active,.nav:hover{color:#4038c9;background:#eef0ff}
.nav span{font-size:11px;font-weight:900;color:var(--muted);background:#f2f4f7;padding:4px 8px;border-radius:999px}
main{padding:28px;min-width:0}
.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:22px}
h1{margin:0;font-size:32px;line-height:1.05;letter-spacing:-.045em}.topbar p{margin:7px 0 0;color:var(--muted);font-size:15px}
.actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.actions.left{justify-content:flex-start;margin-top:16px}
.btn{border:0;border-radius:13px;padding:11px 15px;font-weight:800;font-size:13px;cursor:pointer}
.btn.secondary{border:1px solid var(--line);color:#344054;background:#fff}.btn.primary{color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 14px 32px rgba(98,87,255,.24)}
.hero{border-radius:24px;box-shadow:var(--shadow);padding:26px;margin-bottom:22px;color:#fff;background:radial-gradient(circle at 84% 18%,rgba(255,255,255,.24),transparent 24rem),linear-gradient(135deg,#101828,#3730a3);display:grid;grid-template-columns:1.35fr .65fr;gap:22px}
.hero h2{margin:0;font-size:28px;letter-spacing:-.045em}.hero p{margin:10px 0 0;max-width:820px;color:rgba(255,255,255,.76);line-height:1.55}
.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.metric-grid div{border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.12);border-radius:17px;padding:16px}.metric-grid span{display:block;color:rgba(255,255,255,.68);font-size:12px;margin-bottom:7px}.metric-grid strong{display:block;font-size:24px;letter-spacing:-.03em}
.tabs{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}.tab{border:1px solid var(--line);background:#fff;color:#475467;border-radius:999px;padding:10px 14px;font-weight:900}.tab.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.view{display:none}.view.active{display:block}.grid{display:grid;gap:22px;align-items:start}.grid.two{grid-template-columns:.92fr 1.08fr}.builder-grid{grid-template-columns:380px minmax(0,1fr)}
.card{border:1px solid var(--line);background:rgba(255,255,255,.95);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;min-width:0}.card-head{padding:19px 22px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:16px}.card-head h3{margin:0;font-size:18px;letter-spacing:-.025em}.card-head p{margin:4px 0 0;color:var(--muted);font-size:13px}.card-body{padding:20px 22px}
.search{height:46px;border:1px solid var(--line);border-radius:15px;color:var(--muted);display:flex;align-items:center;padding:0 14px;margin-bottom:16px;background:#fff}
.doc-list{display:grid;gap:12px}.doc-row{display:grid;grid-template-columns:42px minmax(0,1fr) auto;align-items:center;gap:13px;padding:14px;border:1px solid var(--line);border-radius:16px;background:var(--soft)}.doc-row>div{width:42px;height:42px;border-radius:13px;background:#eef0ff;color:#4f46e5;display:grid;place-items:center;font-weight:900}.doc-row h4{margin:0;font-size:14px;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.doc-row p{margin:4px 0 0;color:var(--muted);font-size:12px;line-height:1.35}.doc-row>span{border:1px solid var(--line);background:#fff;color:#475467;border-radius:999px;font-size:11px;font-weight:900;padding:6px 9px;white-space:nowrap}
label{display:block;margin:14px 0 7px;color:#475467;font-size:12px;font-weight:900}label:first-child{margin-top:0}
input,textarea{width:100%;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:13px;padding:11px 12px;font-size:13px;outline:none}textarea{min-height:92px;resize:vertical;line-height:1.45}input:focus,textarea:focus{border-color:#bbb6ff;box-shadow:0 0 0 4px rgba(98,87,255,.10)}
.status{margin-top:12px;color:var(--muted);font-size:13px;line-height:1.4}
.preview-card{min-height:980px}iframe{width:100%;height:925px;border:0;background:#edf1f7}
@media(max-width:1280px){.grid.two,.builder-grid{grid-template-columns:1fr}.preview-card{min-height:auto}}
@media(max-width:940px){.app{grid-template-columns:1fr}.sidebar{display:none}main{padding:18px}.topbar,.hero{display:block}.actions{justify-content:flex-start;margin-top:14px}.metric-grid{margin-top:18px}.doc-row{grid-template-columns:42px 1fr}.doc-row>span{grid-column:2;width:fit-content}}