:root{--primary-color:#2563eb;--secondary-color:#64748b;--bg-color:#f8fafc;--card-bg:#fff;--text-main:#1e293b;--text-muted:#64748b;--border-color:#e2e8f0;--success-color:#10b981;--error-color:#ef4444}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-main);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.5}.admin-layout{min-height:100vh;display:flex}.sidebar{color:#fff;background-color:#1e293b;flex-direction:column;width:260px;padding:2rem 1rem;display:flex}.sidebar h2{color:#38bdf8;margin-bottom:2rem;padding:0 1rem;font-size:1.25rem}.sidebar nav{flex-direction:column;gap:.5rem;display:flex}.nav-item{color:#94a3b8;border-radius:.375rem;align-items:center;gap:.75rem;padding:.75rem 1rem;text-decoration:none;transition:all .2s;display:flex}.nav-item:hover,.nav-item.active{color:#fff;background-color:#334155}.main-content{flex:1;padding:2rem;overflow-y:auto}.card{background-color:var(--card-bg);border:1px solid var(--border-color);border-radius:.5rem;padding:1.5rem;box-shadow:0 1px 3px #0000001a}.btn{cursor:pointer;border:1px solid #0000;border-radius:.375rem;padding:.5rem 1rem;font-weight:500;transition:all .2s}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:#1d4ed8}table{border-collapse:collapse;width:100%;margin-top:1rem}th{text-align:left;border-bottom:2px solid var(--border-color);color:var(--text-muted);padding:.75rem;font-weight:600}td{border-bottom:1px solid var(--border-color);padding:.75rem}.login-container{justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{width:100%;max-width:400px}.form-group{margin-bottom:1rem}.form-group label{margin-bottom:.5rem;font-weight:500;display:block}.form-group input{border:1px solid var(--border-color);border-radius:.375rem;width:100%;padding:.625rem}