:root{--blue:#1e4db7;--dark:#111827;--muted:#6b7280;--line:#e5e7eb;--bg:#f3f6fb;--card:#fff;--green:#16a34a;--red:#dc2626;--amber:#d97706}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--dark)}a{color:inherit}.layout{display:flex;min-height:100vh}.sidebar{width:250px;background:#111827;color:#fff;padding:20px;position:fixed;inset:0 auto 0 0}.brand{font-size:22px;font-weight:800;margin-bottom:20px}.nav a{display:block;text-decoration:none;padding:12px 14px;border-radius:10px;margin:5px 0;color:#d1d5db}.nav a:hover,.nav a.active{background:#1f2937;color:#fff}.main{margin-left:250px;padding:24px;width:calc(100% - 250px)}.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 8px 24px rgba(0,0,0,.04)}.metric{font-size:26px;font-weight:800}.muted{color:var(--muted)}.btn{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;border:0;border-radius:10px;padding:10px 14px;cursor:pointer}.btn.gray{background:#374151}.btn.red{background:#dc2626}.btn.green{background:#16a34a}input,select,textarea{width:100%;padding:10px;border:1px solid var(--line);border-radius:10px;margin:6px 0 12px;background:#fff}label{font-weight:700;font-size:13px}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px;border-bottom:1px solid var(--line);text-align:left}.badge{padding:6px 10px;border-radius:999px;font-size:12px;font-weight:800}.Paid{background:#dcfce7;color:#166534}.Partial{background:#fef3c7;color:#92400e}.Due{background:#fee2e2;color:#991b1b}.Submitted{background:#dbeafe;color:#1d4ed8}.Progress{background:#fef3c7;color:#92400e}.Completed{background:#dcfce7;color:#166534}.auth{max-width:440px;margin:60px auto}.notice{padding:12px;border-radius:10px}.success{background:#dcfce7}.error{background:#fee2e2}.invoice{background:#fff;max-width:800px;margin:auto;padding:30px;border:1px solid #ddd}.invoice-head{display:flex;justify-content:space-between;border-bottom:2px solid #111;padding-bottom:15px}.stamp{border:3px double var(--blue);color:var(--blue);border-radius:50%;width:130px;height:130px;display:flex;align-items:center;justify-content:center;text-align:center;font-weight:800;opacity:.78;transform:rotate(-10deg);font-size:14px}.sign{font-family:cursive;font-size:25px}.footer-actions{margin:15px 0;display:flex;gap:8px;flex-wrap:wrap}@media(max-width:900px){.sidebar{position:static;width:100%}.layout{display:block}.main{margin:0;width:100%;padding:14px}.grid,.grid2{grid-template-columns:1fr}.table{font-size:13px}.invoice{padding:15px}.invoice-head{display:block}}@media print{body{background:white}.sidebar,.top,.footer-actions,.no-print{display:none!important}.main{margin:0;width:100%;padding:0}.card{box-shadow:none;border:0}.invoice{border:0;width:210mm;min-height:297mm;max-width:none;padding:15mm}.table th,.table td{padding:7px}}