:root{--bg: #f4f6fb;--surface: #ffffff;--ink: #16213a;--muted: #6b7690;--line: #e4e8f1;--brand: #1f5eff;--brand-dark: #1746c4;--green: #12915a;--green-bg: #e5f6ee;--amber: #b7791f;--amber-bg: #fdf3e2;--red: #c02b3a;--red-bg: #fdeaec;--grey-bg: #eef1f7;--shadow: 0 1px 3px rgba(20,30,60,.08), 0 6px 20px rgba(20,30,60,.05);--radius: 12px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}a{color:var(--brand);text-decoration:none}button{font-family:inherit;cursor:pointer}h1,h2,h3{margin:0 0 .25em}h1{font-size:1.5rem}h2{font-size:1.15rem}h3{font-size:1rem}.app{display:flex;min-height:100vh}.sidebar{width:232px;background:#0f1a33;color:#cdd6ea;padding:18px 14px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}.sidebar .brand{font-weight:800;font-size:1.25rem;color:#fff;padding:6px 10px 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env(safe-area-inset-top));width:auto;max-width:none;max-height:72vh}}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#101a3373;display:grid;place-items:center;z-index:100;padding:20px}.modal{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;width:100%;max-width:620px;max-height:90vh;overflow:auto}.invoice-sheet{border:1px solid var(--line);border-radius:8px;padding:22px}@media print{body *{visibility:hidden}#invoice-print,#invoice-print *{visibility:visible}#invoice-print{position:absolute;left:0;top:0;width:100%;border:none}.no-print{display:none}}