/* =========================================================
   TEC4 · INICIAR SESIÓN
   Maqueta visual (sin funcionalidad todavía).
   Usa las variables globales: --red, --black, --paper, --line
   ========================================================= */

.login-main {
    position: relative;
    display: grid;
    min-height: 100svh;
    place-items: center;
    padding: 110px 0 64px;
    overflow: hidden;
    background: #0b0c0d;
    color: #fff;
    isolation: isolate;
}

.login-bg {
    position: absolute;
    z-index: -1;
    inset: 0;
    background:
        radial-gradient(ellipse at 88% 0%, rgba(227, 6, 19, .2), transparent 42%),
        linear-gradient(135deg, #131516 0%, #080909 70%);
}

.login-bg::after {
    position: absolute;
    inset: 0;
    content: "";
    opacity: .13;
    background-image:
        linear-gradient(rgba(255, 255, 255, .09) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .09) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
}


/* ---------- Tarjeta ---------- */

.login-card {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    width: min(1000px, calc(100% - 48px));
    overflow: hidden;
    background: #fff;
    box-shadow: 0 40px 90px rgba(0, 0, 0, .55);
}


/* ---------- Panel izquierdo (oscuro) ---------- */

.login-aside {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 40px;
    padding: 50px 44px;
    overflow: hidden;
    background: radial-gradient(ellipse at 20% 0%, #34383a 0%, #17191a 55%, #0c0d0e 100%);
    color: #fff;
    isolation: isolate;
}

.login-aside::before {
    position: absolute;
    z-index: -1;
    inset: 0;
    content: "";
    opacity: .17;
    background-image:
        linear-gradient(rgba(255, 255, 255, .11) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .11) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(180deg, #000, transparent 90%);
}

.login-aside::after {
    position: absolute;
    z-index: -1;
    right: -110px;
    bottom: -110px;
    width: 280px;
    height: 280px;
    content: "";
    border: 1px solid rgba(227, 6, 19, .35);
    border-radius: 50%;
    box-shadow:
        0 0 0 32px rgba(227, 6, 19, .03),
        0 0 0 64px rgba(227, 6, 19, .02);
}

.login-eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 22px;
    color: rgba(255, 255, 255, .8);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 2.3px;
}

.login-eyebrow::before {
    display: block;
    width: 30px;
    height: 2px;
    content: "";
    background: var(--red);
}

.login-aside h2 {
    margin: 0 0 16px;
    color: #fff;
    font-size: clamp(30px, 3.2vw, 40px);
    font-weight: 900;
    letter-spacing: -1.6px;
    line-height: 1.05;
}

.login-aside h2 span {
    color: #aeb2b4;
}

.login-aside-text {
    max-width: 340px;
    margin: 0;
    color: rgba(255, 255, 255, .68);
    font-size: 13px;
    line-height: 1.8;
}

.login-benefits {
    display: grid;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
    border-top: 1px solid rgba(255, 255, 255, .15);
}

.login-benefits li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .15);
    color: rgba(255, 255, 255, .88);
    font-size: 13px;
    font-weight: 700;
}

.login-benefits i {
    display: grid;
    width: 36px;
    height: 36px;
    flex: 0 0 36px;
    place-items: center;
    border: 1px solid rgba(227, 6, 19, .5);
    background: rgba(227, 6, 19, .09);
    color: #ff3944;
    font-size: 14px;
}


/* ---------- Panel derecho (formulario) ---------- */

.login-form-side {
    position: relative;
    padding: 56px 52px 48px;
    color: var(--black, #080909);
}

.login-badge {
    position: absolute;
    top: 22px;
    right: 22px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 11px;
    border: 1px solid rgba(227, 6, 19, .45);
    background: rgba(227, 6, 19, .07);
    color: var(--red, #e30613);
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 1.6px;
}

.login-badge::before {
    width: 6px;
    height: 6px;
    content: "";
    border-radius: 50%;
    background: var(--red, #e30613);
}

.login-user-icon {
    display: grid;
    width: 54px;
    height: 54px;
    margin-bottom: 22px;
    place-items: center;
    background: var(--black, #080909);
    color: #fff;
    font-size: 21px;
}

.login-form-side h1 {
    margin: 0 0 8px;
    color: var(--black, #080909);
    font-size: clamp(28px, 3vw, 36px);
    font-weight: 900;
    letter-spacing: -1.4px;
    line-height: 1.08;
}

.login-subtitle {
    margin: 0 0 30px;
    color: #666b6d;
    font-size: 13px;
    line-height: 1.7;
}

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

.login-field label {
    display: block;
    margin-bottom: 8px;
    color: #26292a;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 1.4px;
    text-transform: uppercase;
}

.login-input-wrap {
    position: relative;
}

.login-input-wrap > i.login-input-icon {
    position: absolute;
    top: 50%;
    left: 16px;
    color: #8a8e90;
    font-size: 14px;
    transform: translateY(-50%);
    pointer-events: none;
    transition: color .2s ease;
}

.login-input-wrap input {
    display: block;
    width: 100%;
    height: 52px;
    padding: 0 48px 0 44px;
    border: 1px solid var(--line, #d9d9d5);
    border-radius: 0;
    background: #fafaf9;
    color: var(--black, #080909);
    font-family: inherit;
    font-size: 16px;          /* 16px evita el zoom automático en iPhone */
    transition:
        border-color .2s ease,
        box-shadow .2s ease,
        background .2s ease;
}

.login-input-wrap input::placeholder {
    color: #9a9d9f;
}

.login-input-wrap input:focus {
    outline: 0;
    border-color: var(--red, #e30613);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(227, 6, 19, .1);
}

.login-input-wrap:focus-within > i.login-input-icon {
    color: var(--red, #e30613);
}

.login-toggle-pass {
    position: absolute;
    top: 50%;
    right: 6px;
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    padding: 0;
    border: 0;
    background: none;
    color: #7b8082;
    font-size: 14px;
    cursor: pointer;
    transform: translateY(-50%);
    transition: color .2s ease;
}

.login-toggle-pass:hover {
    color: var(--red, #e30613);
}

.login-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin: 4px 0 24px;
    font-size: 12px;
}

.login-remember {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: #4d5254;
    font-weight: 700;
    cursor: pointer;
}

.login-remember input {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--red, #e30613);
}

.login-options a {
    color: #4d5254;
    font-weight: 700;
    text-decoration: none;
    transition: color .2s ease;
}

.login-options a:hover {
    color: var(--red, #e30613);
}

.login-submit {
    display: flex;
    width: 100%;
    min-height: 56px;
    align-items: center;
    justify-content: space-between;
    padding: 0 22px;
    border: 0;
    border-radius: 2px;
    background: var(--red, #e30613);
    color: #fff;
    font-family: inherit;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    transition: background .25s ease, transform .25s ease;
}

.login-submit i {
    font-size: 13px;
    transition: transform .25s ease;
}

.login-submit:hover {
    background: #ff2631;
    transform: translateY(-2px);
}

.login-submit:hover i {
    transform: translateX(4px);
}

.login-submit:focus-visible {
    outline: 3px solid var(--black, #080909);
    outline-offset: 3px;
}

/* Aviso al pulsar el botón (demo) */

.login-notice {
    display: none;
    margin: 18px 0 0;
    padding: 13px 16px;
    border-left: 3px solid var(--red, #e30613);
    background: var(--paper, #f4f4f2);
    color: #3d4143;
    font-size: 12px;
    line-height: 1.6;
}

.login-notice.is-visible {
    display: block;
}

.login-register {
    margin: 28px 0 0;
    padding-top: 22px;
    border-top: 1px solid #e8e8e6;
    color: #666b6d;
    font-size: 12px;
    text-align: center;
}

.login-register a {
    margin-left: 4px;
    color: var(--black, #080909);
    font-weight: 800;
    text-decoration: none;
    border-bottom: 2px solid var(--red, #e30613);
    transition: color .2s ease;
}

.login-register a:hover {
    color: var(--red, #e30613);
}


/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 900px) {

    .login-main {
        min-height: 100svh;
        padding: 96px 0 56px;
    }

    .login-card {
        grid-template-columns: 1fr;
        width: min(560px, calc(100% - 40px));
    }

    .login-aside {
        gap: 26px;
        padding: 34px 32px 30px;
    }

    .login-aside-text {
        max-width: none;
    }

    .login-form-side {
        padding: 54px 32px 36px;
    }
}


/* =========================================================
   MÓVIL
   ========================================================= */

@media (max-width: 540px) {

    .login-main {
        min-height: 100svh;
        padding: 84px 0 40px;
    }

    .login-card {
        width: calc(100% - 28px);
    }

    /* En móvil se prioriza el formulario: la lista de ventajas se oculta */
    .login-benefits {
        display: none;
    }

    .login-aside {
        gap: 0;
        padding: 26px 22px 24px;
    }

    .login-aside h2 {
        margin-bottom: 10px;
        font-size: 28px;
        letter-spacing: -1.2px;
    }

    .login-aside-text {
        font-size: 12px;
    }

    .login-form-side {
        padding: 54px 22px 30px;
    }

    .login-options {
        flex-wrap: wrap;
        gap: 10px;
    }

    .login-submit {
        min-height: 54px;
    }
}


@media (prefers-reduced-motion: reduce) {

    .login-card *,
    .login-card *::before,
    .login-card *::after {
        transition-duration: .01ms !important;
    }
}

/* Barra superior mínima con logo y botón de volver */

.login-topbar {
    position: absolute;
    z-index: 2;
    top: 0;
    right: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px clamp(20px, 4vw, 56px);
}

.login-logo img {
    display: block;
    width: 190px;
    height: auto;
}

.login-back {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    gap: 10px;
    padding: 0 18px;
    border: 1px solid rgba(255, 255, 255, .32);
    border-radius: 2px;
    background: rgba(255, 255, 255, .04);
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    text-decoration: none;
    backdrop-filter: blur(8px);
    transition: background .25s ease, color .25s ease, border-color .25s ease;
}

.login-back i {
    font-size: 12px;
    transition: transform .25s ease;
}

.login-back:hover {
    border-color: #fff;
    background: #fff;
    color: var(--black);
}

.login-back:hover i {
    transform: translateX(-4px);
}

.login-back:focus-visible {
    outline: 3px solid var(--red);
    outline-offset: 3px;
}

@media (max-width: 540px) {
    .login-topbar {
        padding: 16px;
    }

    .login-logo img {
        width: 130px;
    }

    .login-back {
        min-height: 40px;
        padding: 0 14px;
        font-size: 11px;
    }
}