:root{--primary:#9f2f35;--primary-dark:#762126;--ink:#1f2937;--muted:#6b7280;--line:#e5e7eb;--bg:#f5f7fa;--card:#fff;--success:#166534;--danger:#991b1b}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Tahoma,Arial,sans-serif;font-size:14px}a{color:var(--primary);text-decoration:none}aside{position:fixed;right:0;top:0;width:245px;height:100vh;background:#18212f;color:#fff;padding:24px 16px;display:flex;flex-direction:column}.brand{font-size:20px;font-weight:700;line-height:1.6;margin-bottom:26px}nav{display:grid;gap:7px}nav a{color:#dce2ea;padding:12px 14px;border-radius:9px}nav a:hover,nav a.active{background:var(--primary);color:#fff}.user{margin-top:auto;border-top:1px solid #394354;padding-top:15px;display:grid;gap:9px}.user a{color:#f6c8ca}.content{margin-right:245px;padding:28px;min-height:100vh}header{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}h1{font-size:26px;margin:0}h2{font-size:18px;margin:0 0 18px}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:20px}.cards article,.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:0 4px 16px rgba(18,29,46,.05)}.cards article{padding:20px;display:grid;gap:8px}.cards span{color:var(--muted)}.cards strong{font-size:27px}.panel{padding:20px;margin-bottom:20px;overflow:auto}.panel.narrow{max-width:900px}.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.split{display:grid;grid-template-columns:minmax(300px,1fr) minmax(450px,1.6fr);gap:20px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}label{display:grid;gap:7px;margin-bottom:13px;font-weight:700}input,select,textarea{width:100%;border:1px solid #cfd5dd;border-radius:8px;padding:10px 11px;font:inherit;background:#fff}textarea{min-height:80px;resize:vertical}.check{display:flex;align-items:center;gap:8px}.check input{width:auto}.btn{display:inline-block;border:1px solid #cbd1d9;background:#fff;color:var(--ink);padding:9px 15px;border-radius:8px;cursor:pointer;font:inherit}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-dark)}button:disabled{opacity:.5;cursor:not-allowed}table{width:100%;border-collapse:collapse;white-space:nowrap}th,td{text-align:right;padding:11px;border-bottom:1px solid var(--line)}th{background:#f8fafc;color:#4b5563}.alert{padding:12px 14px;border-radius:9px;margin-bottom:16px}.alert.success{background:#dcfce7;color:var(--success)}.alert.danger{background:#fee2e2;color:var(--danger)}.inline-form{display:flex;align-items:end;gap:12px;flex-wrap:wrap}.inline-form label{margin:0;min-width:160px}.details{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px 20px}.auth-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#f7ecec,#eef2f7)}.auth-card{width:min(430px,92vw);background:#fff;padding:32px;border-radius:16px;box-shadow:0 18px 50px rgba(20,28,40,.12)}.auth-card h1{margin-bottom:10px}.auth-card p{color:var(--muted);margin-bottom:24px}.auth-card .btn{width:100%}.invoice{background:#e8ebef;padding:25px}.invoice-sheet{width:210mm;min-height:270mm;margin:auto;background:#fff;padding:22mm;box-shadow:0 5px 25px #aab}.invoice-sheet h1,.invoice-sheet h2{text-align:center;margin-bottom:18px}.invoice-grid{display:grid;grid-template-columns:1fr 1fr;margin:25px 0}.totals{margin-right:auto;width:280px;font-size:16px}@media(max-width:900px){aside{position:static;width:100%;height:auto}.content{margin:0;padding:15px}.cards,.split,.form-grid,.details{grid-template-columns:1fr}nav{grid-template-columns:repeat(3,1fr)}.user{margin-top:15px}.invoice{padding:0}.invoice-sheet{width:100%;min-height:auto;padding:20px;box-shadow:none}}@media print{.no-print{display:none}.invoice{padding:0;background:#fff}.invoice-sheet{box-shadow:none;margin:0}}