/* Estilos específicos para login */
        .login-page {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            padding: 20px;
            position: relative;
            overflow: hidden;
        }

        /* Efecto de fondo con partículas */
        .login-page::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.05) 0%, transparent 50%),
                        radial-gradient(circle at 70% 80%, rgba(255,255,255,0.05) 0%, transparent 50%);
            animation: float 20s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translate(0, 0) rotate(0deg); }
            33% { transform: translate(30px, -20px) rotate(2deg); }
            66% { transform: translate(-20px, 30px) rotate(-2deg); }
        }

        .login-card {
            position: relative;
            z-index: 1;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 24px;
            padding: 50px 40px;
            max-width: 440px;
            width: 100%;
            box-shadow: 0 30px 60px rgba(0,0,0,0.3);
            animation: slideUp 0.6s ease-out;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(40px) scale(0.95);
            }
            to {
                opacity: 1;
                transform: translateY(0) scale(1);
            }
        }

        .login-header {
            text-align: center;
            margin-bottom: 35px;
        }

        .login-header .logo-icon {
            font-size: 64px;
            display: block;
            margin-bottom: 10px;
            animation: heartbeat 2s ease-in-out infinite;
        }

        @keyframes heartbeat {
            0%, 100% { transform: scale(1); }
            14% { transform: scale(1.1); }
            28% { transform: scale(1); }
            42% { transform: scale(1.1); }
            70% { transform: scale(1); }
        }

        .login-header h1 {
            font-size: 28px;
            font-weight: 700;
            color: #1a1a2e;
            margin-bottom: 8px;
        }

        .login-header .subtitle {
            color: #6c757d;
            font-size: 15px;
            margin: 0;
        }

        .login-header .subtitle span {
            background: linear-gradient(135deg, #667eea, #764ba2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 600;
        }

        .form-floating-custom {
            margin-bottom: 20px;
            position: relative;
        }

        .form-floating-custom .input-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: #adb5bd;
            font-size: 18px;
            z-index: 10;
            transition: color 0.3s;
        }

        .form-floating-custom .form-control {
            padding: 14px 16px 14px 48px;
            border: 2px solid #e9ecef;
            border-radius: 14px;
            font-size: 16px;
            height: 56px;
            transition: all 0.3s;
            background: #f8f9fa;
        }

        .form-floating-custom .form-control:focus {
            border-color: #667eea;
            box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
            background: white;
        }

        .form-floating-custom .form-control:focus + .input-icon {
            color: #667eea;
        }

        .form-floating-custom .form-control.is-invalid {
            border-color: #dc3545;
        }

        .form-floating-custom .form-control.is-invalid:focus {
            box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.15);
        }

        .btn-login {
            width: 100%;
            padding: 16px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border: none;
            border-radius: 14px;
            color: white;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
            height: 56px;
        }

        .btn-login:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
        }

        .btn-login:active:not(:disabled) {
            transform: translateY(0);
        }

        .btn-login:disabled {
            opacity: 0.7;
            cursor: not-allowed;
        }

        .btn-login .btn-content {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .btn-login .spinner-border {
            width: 20px;
            height: 20px;
            border-width: 2px;
        }

        .login-divider {
            display: flex;
            align-items: center;
            margin: 25px 0;
            color: #adb5bd;
            font-size: 13px;
        }

        .login-divider::before,
        .login-divider::after {
            content: '';
            flex: 1;
            height: 1px;
            background: #e9ecef;
        }

        .login-divider::before {
            margin-right: 15px;
        }

        .login-divider::after {
            margin-left: 15px;
        }

        .login-footer {
            text-align: center;
            margin-top: 25px;
        }

        .login-footer small {
            color: #6c757d;
            font-size: 13px;
        }

        .login-footer .role-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
            margin: 2px 4px;
        }

        .role-badge.admin {
            background: #dc3545;
            color: white;
        }

        .role-badge.dj {
            background: #28a745;
            color: white;
        }

        .role-badge.guest {
            background: #17a2b8;
            color: white;
        }

        .alert-custom {
            border: none;
            border-radius: 14px;
            padding: 14px 18px;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            animation: shake 0.5s ease-in-out;
        }

        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            25% { transform: translateX(-10px); }
            75% { transform: translateX(10px); }
        }

        .alert-custom i {
            font-size: 20px;
        }

        /* Sugerencias de alias */
        .alias-suggestions {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 10px;
        }

        .alias-suggestion {
            padding: 6px 14px;
            background: #f0f2f5;
            border-radius: 20px;
            font-size: 13px;
            color: #1a1a2e;
            cursor: pointer;
            transition: all 0.2s;
            border: 2px solid transparent;
        }

        .alias-suggestion:hover {
            background: #e7f3ff;
            border-color: #667eea;
            transform: scale(1.05);
        }

        .alias-suggestion:active {
            transform: scale(0.95);
        }

        /* Responsive */
        @media (max-width: 576px) {
            .login-card {
                padding: 35px 25px;
                border-radius: 20px;
            }

            .login-header h1 {
                font-size: 24px;
            }

            .login-header .logo-icon {
                font-size: 48px;
            }

            .form-floating-custom .form-control {
                height: 50px;
                font-size: 14px;
                padding: 12px 14px 12px 44px;
            }

            .btn-login {
                height: 50px;
                font-size: 16px;
            }
        }

        @media (max-width: 400px) {
            .login-card {
                padding: 25px 18px;
            }

            .alias-suggestions {
                gap: 5px;
            }

            .alias-suggestion {
                font-size: 12px;
                padding: 4px 10px;
            }
        }

        /* Animación de entrada para los campos */
        .form-floating-custom {
            opacity: 0;
            animation: fadeInUp 0.5s ease forwards;
        }

        .form-floating-custom:nth-child(1) { animation-delay: 0.1s; }
        .form-floating-custom:nth-child(2) { animation-delay: 0.2s; }

        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }