:root{--bg:#f5f6f8;--card:#fff;--text:#20242b;--muted:#6e7580;--line:#dde1e7;--dark:#14171c;--accent:#6657e8;--ok:#17844b;--bad:#b53333}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 system-ui,-apple-system,Segoe UI,sans-serif}.top{height:64px;background:var(--dark);display:flex;align-items:center;padding:0 28px;gap:35px}.brand{color:#fff;font-size:20px;font-weight:800;text-decoration:none}.top nav{display:flex;gap:20px}.top nav a{color:#d6d8dd;text-decoration:none}.container{max-width:1180px;margin:auto;padding:26px}.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.page-head h1{margin:0;font-size:27px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:18px}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}.col-3{grid-column:span 3}.col-4{grid-column:span 4}.col-6{grid-column:span 6}.col-8{grid-column:span 8}.col-12{grid-column:span 12}.stat strong{font-size:28px;display:block}.stat span,.muted{color:var(--muted)}label{display:block;font-weight:650;margin-bottom:5px}input,select,textarea{width:100%;padding:10px 11px;border:1px solid #cfd4dc;border-radius:8px;background:#fff;font:inherit}textarea{min-height:90px}.field{margin-bottom:14px}.btn{display:inline-block;border:0;border-radius:8px;background:var(--accent);color:#fff;text-decoration:none;padding:10px 15px;font-weight:700;cursor:pointer}.btn.secondary{background:#e9e8fb;color:#4036a9}.btn.dark{background:var(--dark)}.btn.danger{background:var(--bad)}table{width:100%;border-collapse:collapse;background:#fff}th,td{text-align:left;padding:11px;border-bottom:1px solid var(--line)}th{font-size:12px;text-transform:uppercase;color:var(--muted)}.badge{display:inline-block;border-radius:99px;padding:4px 9px;background:#eceef1;font-size:11px;font-weight:800;text-transform:uppercase}.badge.accepted,.badge.paid,.badge.active{background:#daf3e5;color:#17673d}.badge.partially_paid,.badge.sent{background:#fff0c9;color:#8a5c00}.badge.overdue,.badge.cancelled,.badge.rejected{background:#ffe1e1;color:#8e2929}.alert{padding:12px 14px;border-radius:8px;margin-bottom:15px;background:#e8eefc}.alert.success{background:#dcf5e7}.alert.error{background:#ffe2e2}.actions{display:flex;gap:8px;flex-wrap:wrap}.login{max-width:430px;margin:70px auto}.line-items .row{display:grid;grid-template-columns:5fr 1fr 2fr 40px;gap:8px;margin-bottom:8px}.totals{margin-left:auto;max-width:360px}.totals div{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px solid var(--line)}@media(max-width:760px){.top{height:auto;align-items:flex-start;flex-direction:column;padding:18px}.top nav{flex-wrap:wrap}.container{padding:16px}.col-3,.col-4,.col-6,.col-8{grid-column:span 12}.line-items .row{grid-template-columns:1fr 1fr}.line-items .row input:first-child{grid-column:span 2}}