:root{--bg:#f0f0f0;--card:#fff;--line:#dfe4ea;--ink:#172033;--muted:#667085;--blue:#2563eb;--teal:#5bb8c8;--brown:#5c2600;--shadow:0 1px 6px rgba(16,24,40,.12)}*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--ink)}a{color:inherit;text-decoration:none}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:100%;max-width:440px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:32px}.login-card img{max-width:260px;display:block;margin:0 auto 28px}.field{margin-bottom:16px}.field label{display:block;font-weight:700;margin-bottom:7px}.input,select,textarea{width:100%;border:1px solid #cfd6df;border-radius:10px;padding:12px 14px;font-size:15px;background:#fff}textarea.paper-input{min-height:170px;border:none;border-bottom:1px solid #d7dde5;border-radius:0;resize:vertical;line-height:1.6;background:linear-gradient(#fff 31px,#edf1f5 32px);background-size:100% 32px}.btn{display:inline-flex;align-items:center;gap:8px;border:none;border-radius:10px;padding:11px 16px;font-weight:700;cursor:pointer;background:#fff;border:1px solid #d7dde5}.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue)}.btn-muted{background:#f6f7f9}.app{display:flex;min-height:100vh}.sidebar{width:244px;background:#fff;border-right:1px solid var(--line);padding:20px 12px;position:fixed;height:100vh;overflow:auto}.sidebar .brand{padding:4px 12px 22px}.sidebar .brand img{max-width:170px}.nav a{display:flex;align-items:center;padding:11px 14px;border-radius:9px;color:#454c59;font-weight:650;margin:2px 0}.nav a.active,.nav a:hover{background:#eef2f8;color:#061633}.main{margin-left:244px;width:calc(100% - 244px)}.topbar{height:58px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:flex-end;padding:0 24px;gap:10px}.content{padding:32px}.page-title{font-size:34px;line-height:1.1;margin:0 0 24px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:22px}.card h3{margin-top:0}.table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--line)}.table th,.table td{padding:14px;border-bottom:1px solid var(--line);text-align:left}.table th{background:#f8fafc;color:#475467}.badge{display:inline-flex;border-radius:999px;padding:4px 9px;background:#edf2ff;color:#1d4ed8;font-weight:700;font-size:12px}.badge-muted{background:#f2f4f7;color:#475467}.badge-warn{background:#fff4e5;color:#92400e}.split-banner{border:1px solid #facc15;background:#fffbeb;color:#713f12;border-radius:12px;padding:12px 16px;margin-bottom:18px}.paper{max-width:920px;margin:0 auto;background:#fff;border:1px solid #ddd;border-radius:4px;padding:56px;box-shadow:0 10px 24px rgba(0,0,0,.08)}.paper-logo{max-width:320px;margin-bottom:30px}.paper h1{font-family:Georgia,serif;font-size:28px}.paper-section{margin:28px 0}.autosave{font-size:13px;color:var(--muted);margin-left:10px}.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.muted{color:var(--muted)}@media(max-width:900px){.sidebar{position:static;width:100%;height:auto}.app{display:block}.main{margin-left:0;width:100%}.grid{grid-template-columns:1fr}.content{padding:18px}.paper{padding:24px}}