:root{--bg-dark:#0f1115;--panel-dark:#181b21;--border-dark:#2a2d36;--text-primary:#f0f2f5;--text-muted:#8b92a5;--accent-color:#3b82f6;--accent-hover:#2563eb;--danger-color:#ef4444;--danger-hover:#dc2626;--success-color:#10b981}body{background-color:var(--bg-dark);color:var(--text-primary);-webkit-font-smoothing:antialiased;margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}*{box-sizing:border-box}.login-container{justify-content:center;align-items:center;min-height:100vh;padding:1rem;display:flex}.login-card{background-color:var(--panel-dark);border:1px solid var(--border-dark);border-radius:12px;width:100%;max-width:400px;padding:2.5rem;box-shadow:0 10px 25px #00000080}.login-title{text-align:center;margin-top:0;margin-bottom:.5rem;font-size:1.5rem;font-weight:600}.login-subtitle{color:var(--text-muted);text-align:center;margin-bottom:2rem;font-size:.9rem}.form-group{margin-bottom:1.25rem}.form-label{color:var(--text-muted);margin-bottom:.5rem;font-size:.85rem;display:block}.form-input{border:1px solid var(--border-dark);width:100%;color:var(--text-primary);background-color:#0c0e12;border-radius:6px;padding:.75rem 1rem;font-size:1rem;transition:border-color .2s}.form-input:focus{border-color:var(--accent-color);outline:none}.btn-primary{background-color:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:6px;width:100%;padding:.85rem;font-size:1rem;font-weight:500;transition:background-color .2s}.btn-primary:hover{background-color:var(--accent-hover)}.btn-primary:disabled{opacity:.7;cursor:not-allowed}.app-container{min-height:100vh;display:flex}.sidebar{background-color:var(--panel-dark);border-right:1px solid var(--border-dark);flex-direction:column;width:260px;display:flex}.sidebar-header{border-bottom:1px solid var(--border-dark);padding:1.5rem}.brand{color:var(--text-primary);align-items:center;gap:.75rem;font-size:1.25rem;font-weight:600;display:flex}.nav-links{flex:1;padding:1rem 0}.nav-item{color:var(--text-muted);align-items:center;gap:.75rem;padding:.85rem 1.5rem;font-weight:500;text-decoration:none;transition:all .2s;display:flex}.nav-item:hover,.nav-item.active{color:var(--text-primary);border-right:3px solid var(--accent-color);background-color:#ffffff0d}.logout-btn{color:var(--text-muted);border:1px solid var(--border-dark);cursor:pointer;background-color:#0000;border-radius:6px;justify-content:center;align-items:center;gap:.5rem;margin:1.5rem;padding:.75rem;transition:all .2s;display:flex}.logout-btn:hover{color:var(--danger-color);border-color:var(--danger-color)}.main-content{flex:1;padding:2.5rem;overflow-y:auto}.page-header{margin-bottom:2.5rem}.page-title{margin:0;font-size:1.75rem;font-weight:600}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;margin-bottom:2.5rem;display:grid}.stat-card{background-color:var(--panel-dark);border:1px solid var(--border-dark);border-radius:10px;padding:1.5rem}.stat-label{color:var(--text-muted);margin-bottom:.5rem;font-size:.9rem}.stat-value{margin:0;font-size:2rem;font-weight:600}.card{background-color:var(--panel-dark);border:1px solid var(--border-dark);border-radius:10px;overflow:hidden}.card-header{border-bottom:1px solid var(--border-dark);justify-content:space-between;align-items:center;padding:1.5rem;display:flex}.card-title{margin:0;font-size:1.15rem}.table-responsive{overflow-x:auto}.table{border-collapse:collapse;width:100%}.table th{text-align:left;color:var(--text-muted);border-bottom:1px solid var(--border-dark);background-color:#ffffff05;padding:1rem 1.5rem;font-size:.85rem;font-weight:500}.table td{border-bottom:1px solid var(--border-dark);padding:1rem 1.5rem;font-size:.95rem}.status-badge{text-transform:uppercase;letter-spacing:.05em;border-radius:20px;padding:.25rem .65rem;font-size:.75rem;font-weight:600;display:inline-block}.status-active{color:var(--success-color);background-color:#10b98126}.status-expired{color:var(--danger-color);background-color:#ef444426}.action-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:.5rem;transition:color .2s,background-color .2s}.action-btn:hover{color:var(--text-primary);background-color:#ffffff1a}.error-text{color:var(--danger-color);text-align:center;margin-top:.5rem;font-size:.85rem}