/* ==========================================================
   YoOpino — Estilos generales V0.01
   ========================================================== */

:root {
    --color-principal: #1e3a5f;
    --color-secundario: #d9a21b;
    --color-texto: #20242a;
    --color-fondo: #f5f7fa;
    --color-blanco: #ffffff;
    --color-error: #a12626;
    --ancho-maximo: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--color-texto);
    background: var(--color-fondo);
}

header {
    padding: 1.25rem;
    color: var(--color-blanco);
    background: var(--color-principal);
}

header h1 {
    width: min(100%, var(--ancho-maximo));
    margin: 0 auto;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

main {
    width: min(100% - 2rem, var(--ancho-maximo));
    margin: 0 auto;
    padding: clamp(3rem, 10vw, 7rem) 0;
}

main h2 {
    max-width: 750px;
    margin: 0 0 1rem;
    font-size: clamp(2rem, 7vw, 4.5rem);
    line-height: 1.05;
    color: var(--color-principal);
}

main h2::after {
    display: block;
    width: 5rem;
    height: 0.3rem;
    margin-top: 1.25rem;
    content: "";
    background: var(--color-secundario);
}

main > section > p {
    max-width: 680px;
    margin: 1.5rem 0 0;
    font-size: clamp(1.05rem, 2vw, 1.3rem);
    line-height: 1.65;
}

/* ==========================================================
   YoOpino — Formulario de registro
   ========================================================== */

form {
    max-width: 680px;
    margin-top: 2.5rem;
}

form > div {
    margin-bottom: 1.75rem;
}

form label {
    display: block;
    margin-bottom: 0.45rem;
    font-weight: 700;
}

form input[type="text"],
form input[type="email"],
form input[type="password"] {
    display: block;
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid #b8c0ca;
    border-radius: 0.4rem;
    font: inherit;
    color: var(--color-texto);
    background: var(--color-blanco);
}

form input[type="text"]:focus,
form input[type="email"]:focus,
form input[type="password"]:focus {
    border-color: var(--color-principal);
    outline: 3px solid rgba(30, 58, 95, 0.15);
}

form small {
    display: block;
    margin-top: 0.45rem;
    line-height: 1.45;
    color: #58616d;
}

.mensaje-error {
    margin: 0.45rem 0 0;
    font-size: 0.95rem;
    line-height: 1.4;
    font-weight: 600;
    color: var(--color-error);
}

form input[aria-invalid="true"] {
    border-color: var(--color-error);
}

form input[aria-invalid="true"]:focus {
    border-color: var(--color-error);
    outline-color: rgba(161, 38, 38, 0.18);
}

form input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
    margin: 0.15rem 0.5rem 0 0;
}

form input[type="checkbox"] + label {
    display: inline;
    font-weight: 400;
    line-height: 1.5;
}

form button {
    padding: 0.9rem 1.5rem;
    border: 0;
    border-radius: 0.4rem;
    font: inherit;
    font-weight: 700;
    color: var(--color-blanco);
    background: var(--color-principal);
    cursor: pointer;
}

form button:hover,
form button:focus-visible {
    background: #152c49;
}

@media (max-width: 600px) {
    header {
        padding: 1rem;
    }

    main {
        width: min(100% - 2rem, var(--ancho-maximo));
        padding-top: 3rem;
    }

    form {
        margin-top: 2rem;
    }

    form button {
        width: 100%;
    }
}