:root{--ink:#0a0e23;--ink2:#18213c;--muted:#73809a;--line:#e5e9f2;--bg:#f6f8fc;--white:#fff;--vio:#7c3aed;--blue:#2563eb;--cyan:#06b6d4;--danger:#dc2626;--grad:linear-gradient(120deg,#7c3aed,#2563eb 55%,#06b6d4)}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--ink)}.sidebar{position:fixed;inset:0 auto 0 0;width:255px;background:#0a0e23;color:#fff;padding:28px 17px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font-weight:800;letter-spacing:2px;font-size:19px}.brand small{display:block;font-size:9px;letter-spacing:3.7px;color:#7dd3fc;margin-top:3px}.mark{display:grid;place-items:center;background:var(--grad);height:39px;width:39px;border-radius:13px;font-weight:900}.business{background:rgba(255,255,255,.08);padding:14px;border-radius:14px;font-size:13px;margin:34px 0 20px}.business small,.sidebar 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solid #dbeafe;border-color:#60a5fa}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.notice{padding:13px 15px;border-radius:11px;margin-bottom:18px;font-size:14px}.success{background:#ecfdf3;color:#166534}.error{background:#fef2f2;color:#b91c1c}.risk{color:var(--danger);font-weight:800}.compact{display:flex;gap:8px;align-items:center}.compact input{width:auto}.total-line,.bill-total{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.total-line strong,.bill-total strong{font-size:23px}.muted{margin-top:17px!important;line-height:1.5}.billing{max-width:950px}.line{display:grid;grid-template-columns:minmax(0,1fr) 130px 115px 38px;gap:10px;align-items:center;margin-bottom:10px}.line-total{font-weight:750;text-align:right}.remove{border:0;background:#fff1f2;color:#be123c;border-radius:9px;height:36px;font-size:22px;cursor:pointer}.add-line{margin:4px 0 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