* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Poppins', sans-serif;
            background-color: #ffffff;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            width: 100%;
            max-width: 500px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .logo {
            width: 120px;
            height: 120px;
            margin-bottom: 30px;
            animation: floatLogo 3s ease-in-out infinite;
        }

        @keyframes floatLogo {
            0%, 100% {
                transform: translateY(0) rotate(0deg);
            }
            50% {
                transform: translateY(-15px) rotate(5deg);
            }
        }

        .login-card {
            background-color: rgba(40, 138, 155, 0.85);
            border-radius: 16px;
            padding: 40px 35px;
            width: 100%;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
            backdrop-filter: blur(10px);
            position: relative;
        }

        h1 {
            color: #ffffff;
            font-size: 28px;
            font-weight: 600;
            text-align: center;
            margin-bottom: 30px;
        }

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

        label {
            display: block;
            color: #ffffff;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 8px;
        }

        .input-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }

        .input-icon {
            position: absolute;
            left: 15px;
            color: #288a9b;
            font-size: 16px;
            pointer-events: none;
        }

        input {
            width: 100%;
            padding: 14px 15px 14px 45px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-radius: 8px;
            font-size: 15px;
            font-family: 'Poppins', sans-serif;
            background-color: rgba(255, 255, 255, 0.95);
            color: #333;
            transition: all 0.3s ease;
        }

        input:focus {
            outline: none;
            border-color: #ffffff;
            background-color: #ffffff;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
        }

        input::placeholder {
            color: #999;
        }

        .btn-login {
            width: 100%;
            padding: 14px;
            background-color: #1c3f4d;
            color: #ffffff;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            font-family: 'Poppins', sans-serif;
            cursor: pointer;
            margin-top: 10px;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            z-index: 1;
        }

        /* Corregida animación de hover para que cubra todo el botón */
        .btn-login::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.3);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
            z-index: -1;
        }

        .btn-login:hover::before {
            width: 400%;
            height: 400%;
        }

        .btn-login:hover {
            background-color: #152e38;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }

        .btn-login:active {
            transform: translateY(0);
        }

        /* Added error message styling */
        .error-message {
            background-color: rgba(220, 53, 69, 0.9);
            color: #ffffff;
            padding: 12px;
            border-radius: 8px;
            margin-bottom: 15px;
            font-size: 14px;
            text-align: center;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .oculto {
            display: none;
        }

        /* Movida sección de footer dentro de la tarjeta */
        .footer-section {
            margin-top: 25px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.3);
            text-align: center;
        }

        .footer-text {
            color: #ffffff;
            font-size: 14px;
            margin-bottom: 15px;
            font-weight: 400;
        }

        .btn-group {
            display: flex;
            flex-direction: column;
            gap: 10px;
            width: 100%;
        }

        .btn-secondary {
            padding: 12px 30px;
            border: none;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            font-family: 'Poppins', sans-serif;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
        }

        .btn-register {
            background-color: #28a745;
            color: #ffffff;
        }

        .btn-register:hover {
            background-color: #218838;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4);
        }

        .btn-back {
            background-color: #dc3545;
            color: #ffffff;
        }

        .btn-back:hover {
            background-color: #c82333;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
        }

        @media (max-width: 480px) {
            .login-card {
                padding: 30px 25px;
            }

            h1 {
                font-size: 24px;
            }

            .logo {
                width: 100px;
                height: 100px;
            }

            /* Mejoras responsive para móviles */
            input {
                font-size: 16px;
                padding: 12px 12px 12px 40px;
            }

            .btn-login, .btn-secondary {
                padding: 12px;
                font-size: 15px;
            }

            .footer-section {
                margin-top: 20px;
                padding-top: 15px;
            }
        }