/* VALUX — panel de autenticación (login / registro)
   Sigue el sistema editorial de styles.css: tinta, papel, royal, mono. */

.auth-section {
    min-height: calc(100vh - var(--header-h));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 1.25rem 5rem;
    background:
        linear-gradient(rgba(5, 5, 5, .035) 1px, transparent 1px) 0 0 / 100% 56px,
        var(--paper);
}

.auth-card {
    width: 100%;
    max-width: 460px;
    background: var(--paper-2);
    border: 1px solid var(--ink);
    box-shadow: 10px 10px 0 rgba(5, 5, 5, .9);
}

.auth-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .8rem 1.4rem;
    border-bottom: 1px solid var(--ink);
    background: var(--ink);
    color: var(--paper);
    font-family: var(--font-mono);
    font-size: .72rem;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.auth-card-head .auth-index {
    color: var(--royal-electric);
}

.auth-card-body {
    padding: 2.2rem 1.6rem 2rem;
}

.auth-title {
    margin: 0 0 .4rem;
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(2.2rem, 6vw, 2.9rem);
    line-height: .95;
    letter-spacing: .01em;
    text-transform: uppercase;
}

.auth-lead {
    margin: 0 0 2rem;
    font-size: .95rem;
    color: var(--muted);
}

.auth-form {
    display: grid;
    gap: 1.3rem;
}

.auth-field {
    display: grid;
    gap: .45rem;
}

.auth-field label {
    font-family: var(--font-mono);
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--ink);
}

.auth-field input {
    width: 100%;
    min-height: 48px;
    padding: .6rem .85rem;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--ink);
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 0;
    outline: none;
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.auth-field input:focus {
    border-color: var(--royal);
    box-shadow: 4px 4px 0 rgba(30, 80, 160, .25);
}

.auth-field .auth-hint {
    font-family: var(--font-mono);
    font-size: .66rem;
    letter-spacing: .06em;
    color: var(--muted);
}

.auth-error {
    margin: 0;
    padding: .65rem .85rem;
    font-family: var(--font-mono);
    font-size: .76rem;
    letter-spacing: .04em;
    color: var(--terracotta);
    background: rgba(182, 90, 58, .08);
    border: 1px solid var(--terracotta);
}

.auth-submit {
    width: 100%;
    justify-content: space-between;
}

.auth-submit:disabled {
    opacity: .6;
    cursor: wait;
    transform: none;
}

.auth-alt {
    margin: 1.6rem 0 0;
    padding-top: 1.2rem;
    border-top: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: .9rem;
    color: var(--muted);
}

.auth-alt a {
    font-family: var(--font-mono);
    font-size: .74rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--royal);
    border-bottom: 2px solid currentColor;
    padding-bottom: .1rem;
    transition: color .2s var(--ease);
}

.auth-alt a:hover {
    color: var(--royal-electric);
}

.auth-foot {
    padding: .7rem 1.4rem;
    border-top: 1px solid var(--line);
    font-family: var(--font-mono);
    font-size: .64rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--muted);
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

@media (max-width: 480px) {
    .auth-card {
        box-shadow: 6px 6px 0 rgba(5, 5, 5, .9);
    }

    .auth-card-body {
        padding: 1.8rem 1.2rem 1.6rem;
    }
}