:root{--primary:#2563eb;--dark:#0f172a;--muted:#64748b;--bg:#f4f7fb;--card:#fff;--green:#16a34a;--red:#dc2626;--amber:#d97706}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:#172033}.app{display:flex;min-height:100vh}.sidebar{width:270px;background:linear-gradient(180deg,#0f172a,#1e293b);color:#fff;padding:18px;position:fixed;inset:0 auto 0 0;overflow:auto}.brand{display:flex;gap:12px;align-items:center;padding-bottom:18px;border-bottom:1px solid #334155}.brand .logo{width:44px;height:44px;border-radius:14px;background:#fff;color:#2563eb;display:grid;place-items:center;font-size:24px}.brand span{display:block;color:#cbd5e1;font-size:12px}.sidebar nav{display:grid;gap:7px;margin-top:18px}.sidebar a{color:#e2e8f0;text-decoration:none;padding:12px;border-radius:12px;transition:.2s}.sidebar a:hover{background:#334155;transform:translateX(3px)}.sidebar .danger{color:#fecaca}.main{margin-left:270px;width:calc(100% - 270px);padding:22px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.topbar h1{margin:0;font-size:26px}.topbar p,.user span{margin:4px 0 0;color:var(--muted);font-size:13px}.user{text-align:right;font-weight:700}.cards{display:grid;grid-template-columns:repeat(4,minmax(180px,1fr));gap:16px}.card{background:var(--card);padding:18px;border-radius:18px;box-shadow:0 10px 30px #0f172a12}.card h3{margin:0;color:var(--muted);font-size:14px;font-weight:600}.card .num{font-size:26px;font-weight:800;margin-top:10px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}.panel{background:#fff;border-radius:18px;box-shadow:0 10px 30px #0f172a12;padding:18px;margin-bottom:16px}.form{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.form.full{grid-template-columns:1fr 1fr}.form label{font-weight:600;font-size:13px}.form input,.form select,.form textarea{width:100%;padding:12px;border:1px solid #dbe3ef;border-radius:12px;background:#fff}.btn{border:0;background:var(--primary);color:#fff;padding:12px 16px;border-radius:12px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}.btn.green{background:var(--green)}.btn.red{background:var(--red)}.btn.amber{background:var(--amber)}table{width:100%;border-collapse:collapse;background:#fff;border-radius:16px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid #edf2f7;text-align:left;font-size:14px}th{background:#f8fafc;color:#475569}.actions{display:flex;gap:8px;flex-wrap:wrap}.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top left,#60a5fa,#0f172a 45%,#020617)}.login-card{width:min(440px,92vw);background:#ffffffee;border-radius:26px;padding:34px;box-shadow:0 25px 80px #0006}.login-card h1{margin:0 0 8px;font-size:30px}.login-card input{width:100%;padding:14px;margin:9px 0;border:1px solid #cbd5e1;border-radius:14px}.receipt{width:300px;margin:auto;background:#fff;padding:14px;font-family:Arial}.receipt .center{text-align:center}.receipt hr{border:0;border-top:1px dashed #444}.print-only{display:none}@media print{body{background:white}.no-print,.sidebar,.topbar{display:none!important}.main{margin:0;width:100%;padding:0}.print-only{display:block}.panel{box-shadow:none}}@media(max-width:950px){.sidebar{position:relative;width:100%;inset:auto}.app{display:block}.main{margin:0;width:100%;padding:14px}.cards,.grid,.form,.form.full{grid-template-columns:1fr}.topbar{align-items:flex-start;gap:10px}.sidebar nav{grid-template-columns:repeat(2,1fr)}}