/* 
    Inicio de Documento CSS
*/

/* Tipografía */
    @import url('https://fonts.googleapis.com/css2?family=Noto+Serif+Display:ital,wght@0,100..900;1,100..900&display=swap');

/* Variables */

:root {
    /* Colores */
        --color-principal: black;
        --color-secundario: #D3DAD9;
        --color-terciario: #3C3D37;
        --color-cuarto: #3C3D37;

    /* Tipografia */
        --fuente-principal: 'Noto Serif Display', serif;
}

/* --- BASE --- */
body {
    background:
    linear-gradient(-45deg,#0000 1.3%,#D3DAD9 0 32%,#0000 0),
    linear-gradient( 45deg,#0000  48%,black 0 52%,#0000 0),
    linear-gradient( 45deg,#0000 1.3%,#D3DAD9 0 32%,#0000 0) calc(32px/2) calc(32px/2),
    linear-gradient(-45deg,#0000  48%,black 0 52%,#0000 0) #D3DAD9;
	background-size: calc(2*32px) 32px,32px 32px;

    font-family: var(--fuente-principal), serif;

    background-attachment: fixed;

    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

h1 {
    font-family: var(--fuente-principal), sans-serif;
    text-align: center;
    font-size: 4em;
    color: var(--color-principal); 
    font-weight: 700;
    margin-bottom: 20px;
}

.row {
    background: var(--color-principal);
    background-size: cover;       
    background-position: center;  
    background-repeat: no-repeat;
    
    width: 420px;
    min-height: 480px;
    padding: 40px;
    margin: 50px auto;
    border-radius: 30px; 
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--color-secundario);
    
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.text {
    display: block;
    width: 100%; 
    background-color: transparent;
    border: none;

    border-bottom: 2px solid var(--color-terciario);
    padding: 15px 5px;
    margin-top: 25px;

    color: var(--color-secundario);
    font-family: var(--fuente-principal), sans-serif;
    outline: none;
    transition: 0.3s all;
}

.text:focus {
    border-bottom: 2px solid var(--color-secundario); 
}

::-webkit-input-placeholder {
    color: var(--color-secundario);
    font-family: var(--fuente-principal), sans-serif;
}

/* --- BOTÓN --- */

input[type="submit"] {
    font-size: 1.1em;
    background-color: var(--color-principal);
    border:2px solid var(--color-secundario);

    color: var(--color-secundario);

    font-family: var(--fuente-principal), sans-serif;
    font-weight: 700;

    width: 100%;
    height: 50px;
    outline: none;

    border-radius: 15px; 

    /* Ajuste de margen */
    margin: 3em 0 1.5em; 
    transition: 0.5s all;
    text-align: center;
    letter-spacing: 1px;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: var(--color-secundario); 
    box-shadow: 0 5px 15px var(--color-secundario);

    color: var(--color-principal);
}

.form-p {
    margin-top: 5px;
    font-size: 0.9em;
    color: var(--color-secundario); 
    letter-spacing: 1px;
    text-align: center;
}

.form-p a, a[href="../index.html"] {
    color: var(--color-secundario);
    font-weight: 700;
    text-decoration: none;
    transition: .5s all;
    display: block;
    margin-top: 10px;
}

.form-p a:hover, a[href="../index.html"]:hover {
    color: var(--color-secundario);
    text-decoration: underline;
}