body{margin:0;font-family:Arial,sans-serif;background:#f4f7fb;color:#172033}
.container{max-width:1140px;margin:0 auto;padding:24px}.row{display:flex;flex-wrap:wrap;gap:16px}.col-md-3{flex:1 1 220px}.col-md-4{flex:1 1 280px}.col-md-6{flex:1 1 420px}.col-md-12{flex:1 1 100%}
.card{background:white;border-radius:14px;border:1px solid #e5e7eb;margin-bottom:16px}.card-body{padding:20px}.card-header{padding:14px 20px;border-bottom:1px solid #e5e7eb;font-weight:bold}
.shadow{box-shadow:0 10px 30px rgba(15,23,42,.08)}.btn{display:inline-block;padding:9px 14px;border-radius:8px;text-decoration:none;border:0;cursor:pointer;margin:3px}.btn-primary{background:#2563eb;color:white}.btn-success{background:#059669;color:white}.btn-warning{background:#f59e0b;color:#111827}.btn-danger{background:#dc2626;color:white}.btn-secondary{background:#64748b;color:white}.btn-info{background:#0891b2;color:white}
.form-control{width:100%;box-sizing:border-box;padding:10px;border:1px solid #cbd5e1;border-radius:8px}.mb-3{margin-bottom:16px}.mt-4{margin-top:24px}.mt-5{margin-top:48px}.d-flex{display:flex}.justify-content-between{justify-content:space-between}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:10px;border:1px solid #e5e7eb}.table-dark{background:#12263f;color:white}.alert{padding:16px;border-radius:10px}.alert-danger{background:#fee2e2;color:#991b1b}.alert-success{background:#dcfce7;color:#166534}.bg-light{background:#f4f7fb}.bg-primary{background:#2563eb;color:white}.bg-success{background:#059669;color:white}.bg-dark{background:#12263f;color:white}.text-white{color:white}