/* Reset de márgenes y padding */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Fondo global y fuente */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #dceeff, #ffffff); /* Azul muy claro hacia blanco */
    color: #333;
    line-height: 1.6;
    font-size: 18px; /* Aumenté tamaño de fuente */
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: start;
    padding-top: 50px; /* Menos espacio arriba */
    animation: fadeSlideIn 1s ease-out;
}

/* Animación de entrada */
@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Contenedor de login */
.login-container {
    background: rgba(255, 255, 255, 0.95);
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 450px;
    text-align: center;
    animation: fadeSlideIn 1s ease-out;
}

/* Logo */
.logo-container {
    margin-bottom: 30px;
}

.logo {
    max-width: 180px;
    margin: 0 auto;
    display: block;
}

/* Input */
input {
    width: 100%;
    padding: 15px;
    margin: 15px 0;
    font-size: 1.1rem;
    border-radius: 10px;
    border: 1px solid #88c0ff;
    background-color: #f9fcff;
    transition: 0.3s ease-in-out;
}

input:focus {
    border-color: #5599ff;
    background-color: #ffffff;
    box-shadow: 0 0 8px rgba(85, 153, 255, 0.5);
    transform: scale(1.03);
}

/* Botón */
button {
    background-color: #5599ff;
    color: #fff;
    padding: 15px 25px;
    font-size: 1.1rem;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    width: 100%;
    margin-top: 10px;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

button:hover {
    background-color: #3377ff;
    transform: scale(1.05);
}

/* Mensaje de error */
.error-message {
    color: #e74c3c;
    font-size: 1rem;
    margin-bottom: 20px;
    text-align: center;
}

/* Enlace */
a {
    color: #5599ff;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    margin-top: 15px;
}

a:hover {
    text-decoration: underline;
    color: #3377ff;
}

/* MEDIA QUERY PARA MÓVILES - TODO 3X MÁS GRANDE */
@media screen and (max-width: 768px) {
    body {
        font-size: 54px; /* 18px * 3 = 54px */
        padding-top: 150px; /* 50px * 3 = 150px */
    }

    .login-container {
        padding: 150px; /* 50px * 3 = 150px */
        border-radius: 60px; /* 20px * 3 = 60px */
        max-width: 1350px; /* 450px * 3 = 1350px */
        box-shadow: 0 30px 75px rgba(0, 0, 0, 0.15); /* 10px y 25px * 3 */
    }

    .logo-container {
        margin-bottom: 90px; /* 30px * 3 = 90px */
    }

    .logo {
        max-width: 540px; /* 180px * 3 = 540px */
    }

    input {
        padding: 45px; /* 15px * 3 = 45px */
        margin: 45px 0; /* 15px * 3 = 45px */
        font-size: 3.3rem; /* 1.1rem * 3 = 3.3rem */
        border-radius: 30px; /* 10px * 3 = 30px */
        border-width: 3px; /* 1px * 3 = 3px */
    }

    input:focus {
        box-shadow: 0 0 24px rgba(85, 153, 255, 0.5); /* 8px * 3 = 24px */
        transform: scale(1.09); /* 1.03 + incremento proporcional */
    }

    button {
        padding: 45px 75px; /* 15px y 25px * 3 = 45px y 75px */
        font-size: 3.3rem; /* 1.1rem * 3 = 3.3rem */
        border-radius: 30px; /* 10px * 3 = 30px */
        margin-top: 30px; /* 10px * 3 = 30px */
    }

    button:hover {
        transform: scale(1.15); /* 1.05 + incremento proporcional */
    }

    .error-message {
        font-size: 3rem; /* 1rem * 3 = 3rem */
        margin-bottom: 60px; /* 20px * 3 = 60px */
    }

    a {
        margin-top: 45px; /* 15px * 3 = 45px */
        font-size: 3rem; /* Heredará del body, pero especifico para claridad */
    }

}