* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', sans-serif; background: #0f0f1a; color: #fff; }
.sidebar { position: fixed; left: 0; top: 0; width: 240px; height: 100vh; background: #1a1a2e; padding: 20px; }
.logo { font-size: 22px; font-weight: 700; color: #dc2626; margin-bottom: 30px; display: block; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 12px 15px; border-radius: 8px; cursor: pointer; margin-bottom: 5px; color: #aaa; }
.nav-item:hover, .nav-item.active { background: #dc2626; color: #fff; }
.main { margin-left: 240px; padding: 30px; }
.header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; }
.card { background: #1a1a2e; border-radius: 12px; padding: 25px; border: 1px solid #2a2a3e; margin-bottom: 20px; }
.card h2 { margin-bottom: 15px; }
.btn { padding: 10px 20px; border-radius: 8px; border: none; cursor: pointer; font-size: 14px; font-weight: 500; }
.btn-primary { background: #dc2626; color: #fff; }
.btn-green { background: #16a34a; color: #fff; }
.btn-gray { background: #2a2a3e; color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.full { width: 100%; padding: 14px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 15px; text-align: left; border-bottom: 1px solid #2a2a3e; font-size: 14px; }
th { color: #aaa; font-weight: 500; }
.badge { padding: 4px 10px; border-radius: 20px; font-size: 11px; font-weight: 500; }
.badge-green { background: rgba(22,163,74,0.2); color: #16a34a; }
.badge-red { background: rgba(220,38,38,0.2); color: #dc2626; }
.badge-yellow { background: rgba(234,179,8,0.2); color: #eab308; }
.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.7); z-index: 1000; align-items: center; justify-content: center; }
.modal.active { display: flex; }
.modal-content { background: #1a1a2e; border-radius: 12px; padding: 30px; width: 450px; border: 1px solid #2a2a3e; }
.modal-content h2 { margin-bottom: 20px; }
.input { width: 100%; padding: 10px 12px; background: #0f0f1a; border: 1px solid #2a2a3e; border-radius: 8px; color: #fff; font-size: 14px; margin-bottom: 12px; }
.label { display: block; font-size: 13px; color: #aaa; margin-bottom: 4px; }
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { background: #1a1a2e; border-radius: 16px; padding: 40px; width: 400px; border: 1px solid #2a2a3e; text-align: center; }
.login-card .logo { font-size: 28px; margin-bottom: 10px; }
.login-card p { color: #aaa; margin-bottom: 20px; }
.login-card .input { text-align: left; margin-bottom: 12px; }
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 15px; font-size: 14px; }
.alert-error { background: rgba(220,38,38,0.2); color: #dc2626; }
.alert-success { background: rgba(22,163,74,0.2); color: #16a34a; }