/* ==========================================================================
   Login — Instituto ISOI
   Colores tomados del logo: ámbar #FFBF00 / gris #676767
   ========================================================================== */

:root {
    --isoi-amber: #FFBF00;
    --isoi-amber-dark: #E0A800;
    --isoi-gray: #676767;
    --isoi-charcoal: #262626;
    --isoi-charcoal-2: #3A3A3A;
    --isoi-ink: #1F1F1F;
    --isoi-muted: #7A7A7A;
    --isoi-line: #E3E3E3;
    --isoi-bg: #F5F5F4;
}

html, body.isoi-login {
    height: 100%;
}

body.isoi-login {
    margin: 0;
    background: var(--isoi-bg);
    color: var(--isoi-ink);
    font-family: 'Open Sans', 'Helvetica Neue', Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

.isoi-shell {
    display: flex;
    min-height: 100vh;
}

/* --- Panel de marca (izquierda) ----------------------------------------- */

.isoi-brand {
    position: relative;
    flex: 0 0 46%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 56px 64px 72px;
    overflow: hidden;
    color: #fff;
    background:
        radial-gradient(circle at 85% 15%, rgba(255, 191, 0, .14), transparent 45%),
        linear-gradient(160deg, var(--isoi-charcoal-2) 0%, var(--isoi-charcoal) 70%);
}

/* Isotipo de fondo, muy tenue */
.isoi-brand::before {
    content: "";
    position: absolute;
    right: -120px;
    bottom: -60px;
    width: 520px;
    height: 520px;
    background: url("../img/brand/favicon/isotipo-512.png") no-repeat center / contain;
    opacity: .035;
    pointer-events: none;
}

/* Franja de seguridad inferior */
.isoi-brand::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 10px;
    background: repeating-linear-gradient(-45deg,
        var(--isoi-amber) 0 18px,
        var(--isoi-charcoal) 18px 36px);
}

.isoi-brand__logo {
    position: relative;
    width: 240px;
    max-width: 70%;
    height: auto;
}

.isoi-brand__body {
    position: relative;
    max-width: 440px;
}

.isoi-brand__eyebrow {
    display: inline-block;
    margin-bottom: 18px;
    padding-left: 14px;
    border-left: 3px solid var(--isoi-amber);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .7);
}

.isoi-brand__title {
    margin: 0 0 16px;
    font-size: 34px;
    font-weight: 300;
    line-height: 1.25;
    color: #fff;
}

.isoi-brand__title strong {
    font-weight: 700;
    color: var(--isoi-amber);
}

.isoi-brand__text {
    margin: 0;
    font-size: 15px;
    line-height: 1.6;
    color: rgba(255, 255, 255, .72);
}

.isoi-brand__tagline {
    position: relative;
    margin: 0;
    font-size: 14px;
    font-style: italic;
    color: rgba(255, 255, 255, .6);
}

/* --- Panel de formulario (derecha) -------------------------------------- */

.isoi-main {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px 24px;
    background: #fff;
}

.isoi-card {
    width: 100%;
    max-width: 380px;
    margin: auto 0;
}

.isoi-card__logo {
    display: none;
    width: 200px;
    max-width: 70%;
    height: auto;
    margin: 0 auto 32px;
}

.isoi-card__title {
    margin: 0 0 6px;
    font-size: 26px;
    font-weight: 700;
    color: var(--isoi-ink);
}

.isoi-card__subtitle {
    margin: 0 0 32px;
    font-size: 14px;
    color: var(--isoi-muted);
}

.isoi-card form {
    margin: 0;
}

.isoi-field {
    margin-bottom: 18px;
}

.isoi-field label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 600;
    color: #444;
}

.isoi-input {
    position: relative;
}

.isoi-input > .fa {
    position: absolute;
    top: 50%;
    left: 14px;
    transform: translateY(-50%);
    font-size: 15px;
    color: #A5A5A5;
    pointer-events: none;
    transition: color .15s;
}

.isoi-input .form-control {
    height: 46px;
    padding: 10px 14px 10px 42px;
    border: 1px solid var(--isoi-line);
    border-radius: 6px;
    background: #FAFAFA;
    box-shadow: none;
    font-size: 14px;
    color: var(--isoi-ink);
    transition: border-color .15s, box-shadow .15s, background-color .15s;
}

.isoi-input .form-control:focus {
    border-color: var(--isoi-amber);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(255, 191, 0, .22);
    outline: 0;
}

.isoi-input .form-control:focus ~ .fa,
.isoi-input .form-control:focus + .fa {
    color: var(--isoi-amber-dark);
}

.isoi-input--password .form-control {
    padding-right: 46px;
}

.isoi-toggle-pass {
    position: absolute;
    top: 0;
    right: 0;
    width: 46px;
    height: 46px;
    border: 0;
    background: transparent;
    color: #A5A5A5;
    cursor: pointer;
}

.isoi-toggle-pass:hover,
.isoi-toggle-pass:focus {
    color: var(--isoi-ink);
    outline: 0;
}

.isoi-row {
    display: flex;
    justify-content: flex-end;
    margin: -4px 0 22px;
}

.isoi-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--isoi-gray);
}

.isoi-link:hover,
.isoi-link:focus {
    color: var(--isoi-ink);
    text-decoration: none;
}

.isoi-btn {
    display: block;
    width: 100%;
    height: 48px;
    border: 0;
    border-radius: 6px;
    background: var(--isoi-amber);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .02em;
    color: var(--isoi-ink);
    transition: background-color .15s, box-shadow .15s, transform .05s;
}

.isoi-btn:hover {
    background: var(--isoi-amber-dark);
}

.isoi-btn:focus {
    outline: 0;
    box-shadow: 0 0 0 3px rgba(255, 191, 0, .35);
}

.isoi-btn:active {
    transform: translateY(1px);
}

.isoi-card .mainErrorLogin {
    margin: 18px 0 0;
    border-radius: 6px;
    font-size: 13px;
}

.isoi-back {
    display: inline-block;
    margin-top: 18px;
}

.isoi-footer {
    margin-top: 32px;
    font-size: 12px;
    color: #A0A0A0;
    text-align: center;
}

/* --- Responsivo ---------------------------------------------------------- */

@media (max-width: 1199px) {
    .isoi-brand {
        padding: 48px 44px 64px;
    }

    .isoi-brand__title {
        font-size: 28px;
    }
}

@media (max-width: 991px) {
    .isoi-brand {
        display: none;
    }

    .isoi-main {
        background: var(--isoi-bg);
        border-top: 6px solid var(--isoi-amber);
    }

    .isoi-card {
        padding: 36px 32px;
        border-radius: 10px;
        background: #fff;
        box-shadow: 0 10px 30px rgba(0, 0, 0, .06);
    }

    .isoi-card__logo {
        display: block;
    }

    .isoi-card__title,
    .isoi-card__subtitle {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .isoi-main {
        padding: 32px 16px 16px;
    }

    .isoi-card {
        padding: 28px 20px;
    }

    .isoi-card__title {
        font-size: 22px;
    }
}

/* --- Variante de una sola columna (pantalla de bloqueo) ------------------ */

.isoi-main--solo {
    background: var(--isoi-bg);
    border-top: 6px solid var(--isoi-amber);
}

.isoi-card--boxed {
    padding: 36px 32px;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .06);
    text-align: left;
}

.isoi-card--boxed .isoi-card__logo {
    display: block;
}

.isoi-card--boxed .isoi-card__title,
.isoi-card--boxed .isoi-card__subtitle {
    text-align: center;
}

.isoi-card--boxed .isoi-card__title .fa {
    color: var(--isoi-amber);
}