:root {
    --au-navy: #002855;
    --au-navy-deep: #001a3a;
    --au-navy-mid: #0a3d70;
    --au-gold: #f4b740;
    --au-gold-deep: #d99a1f;
    --au-ink: #101828;
    --au-body: #414755;
    --au-muted: #6b7280;
    --au-line: rgba(0, 40, 85, 0.14);
    --au-glass: rgba(255, 255, 255, 0.66);
    --au-glass-strong: rgba(255, 255, 255, 0.86);
}

.au-stage {
    position: relative;
    min-height: calc(100vh - 74px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 90px 20px 70px;
    overflow: hidden;
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    color: var(--au-body);
}

.au-aura {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    z-index: 0;
    pointer-events: none;
}

.au-aura-navy {
    width: 620px;
    height: 620px;
    top: -220px;
    left: -200px;
    background: rgba(0, 40, 85, 0.18);
}

.au-aura-gold {
    width: 560px;
    height: 560px;
    bottom: -240px;
    right: -180px;
    background: rgba(244, 183, 64, 0.22);
}

.au-back {
    position: absolute;
    top: 24px;
    left: 24px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--au-navy);
    text-decoration: none;
    background: var(--au-glass-strong);
    border: 1px solid rgba(255, 255, 255, 0.7);
    padding: 0.5rem 1rem;
    border-radius: 999px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 28px -18px rgba(0, 40, 85, 0.5);
    transition: transform 0.18s ease, color 0.2s ease;
}

.au-back:hover {
    color: var(--au-navy-mid);
    transform: translateY(-1px);
}

.au-back:active {
    transform: scale(.97);
}

.au-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
    background: var(--au-glass);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 28px;
    padding: 42px 40px;
    backdrop-filter: blur(26px) saturate(160%);
    -webkit-backdrop-filter: blur(26px) saturate(160%);
    box-shadow:
        0 40px 90px -50px rgba(0, 40, 85, 0.5),
        0 2px 0 rgba(255, 255, 255, 0.7) inset,
        0 0 0 1px rgba(0, 40, 85, 0.04);
    overflow: hidden;
}

.au-card.au-card-wide {
    max-width: 680px;
}

.au-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--au-navy), var(--au-navy-mid), var(--au-gold));
}

.au-brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-weight: 800;
    font-size: 1.02rem;
    letter-spacing: -0.02em;
    color: var(--au-ink);
    margin-bottom: 1.8rem;
}

.au-brand .au-brand-ico {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 1rem;
    background: linear-gradient(135deg, var(--au-navy), var(--au-navy-mid));
    box-shadow: 0 10px 22px -12px rgba(0, 40, 85, 0.7);
}

.au-brand img {
    height: 34px;
    width: auto;
}

.au-eyebrow {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--au-gold-deep);
    margin: 0 0 0.6rem;
}

.au-title {
    font-size: 1.7rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--au-ink);
    margin: 0 0 0.5rem;
    text-wrap: balance;
}

.au-sub {
    font-size: 0.96rem;
    color: var(--au-muted);
    margin: 0 0 1.9rem;
    line-height: 1.6;
}

.au-card form {
    margin: 0;
}

.au-card .form-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--au-ink);
    margin-bottom: 0.4rem;
}

.au-card .form-control,
.au-card .input-group-text,
.au-card .select2-container--default .select2-selection--single {
    border: 1px solid var(--au-line);
    border-radius: 13px;
    background: rgba(255, 255, 255, 0.82);
    color: var(--au-ink);
    font-size: 0.95rem;
}

.au-card .form-control {
    padding: 0.75rem 1rem;
    min-height: 50px;
}

.au-card .form-control::placeholder {
    color: #9aa2b1;
}

.au-card .form-control:focus {
    border-color: var(--au-navy);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(0, 40, 85, 0.13);
}

.au-card .input-group-text {
    background: rgba(0, 40, 85, 0.06);
    color: var(--au-navy);
    font-weight: 600;
}

.au-card .select2-container--default .select2-selection--single {
    height: 50px;
    display: flex;
    align-items: center;
    padding: 0 0.4rem;
}

.au-card .select2-container--default .select2-selection--single .select2-selection__rendered {
    line-height: 48px;
    color: var(--au-ink);
}

.au-card .select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 48px;
}

.au-card .select2-container--open .select2-selection--single {
    border-color: var(--au-navy);
    box-shadow: 0 0 0 3px rgba(0, 40, 85, 0.13);
}

.au-card .btn-primary {
    width: 100%;
    background: var(--au-gold);
    border: 1px solid transparent;
    color: var(--au-navy-deep);
    font-weight: 800;
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 14px;
    padding: 0.95rem 1.5rem;
    transition: transform 0.18s ease, box-shadow 0.25s ease, background-color 0.2s ease;
}

.au-card .btn-primary:hover,
.au-card .btn-primary:focus {
    background: var(--au-gold-deep);
    color: var(--au-navy-deep);
    box-shadow: 0 22px 46px -22px rgba(217, 154, 31, 0.8);
    transform: translateY(-1px);
}

.au-card .btn-primary:active {
    transform: scale(0.98);
}

.au-card .form-check {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    padding-left: 0;
}

.au-card .form-check-input {
    width: 1.1em;
    height: 1.1em;
    margin-top: 0.18em;
    flex-shrink: 0;
    border-color: var(--au-line);
}

.au-card .form-check-input:checked {
    background-color: var(--au-navy);
    border-color: var(--au-navy);
}

.au-card .form-check-label {
    font-size: 0.85rem;
    color: var(--au-muted);
    line-height: 1.5;
}

.au-card .form-check-label a,
.au-card a.au-link {
    color: var(--au-navy);
    font-weight: 600;
}

.au-card a.au-link:hover {
    color: var(--au-navy-mid);
}

.au-card a.au-link:active,
.au-card .form-check-label a:active {
    opacity: .6;
}

.au-card .btn:not(.btn-primary) {
    transition: transform .12s ease-out, color .2s ease, background-color .2s ease;
}

.au-card .btn:not(.btn-primary):active {
    transform: scale(.98);
}

.au-links {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
    font-size: 0.85rem;
    color: var(--au-muted);
}

.au-links .au-links-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.8rem;
}

.au-pass {
    position: relative;
}

.au-pass .form-control {
    padding-right: 2.9rem;
}

.au-pass-toggle {
    position: absolute;
    right: 0.55rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: 0;
    color: var(--au-muted);
    cursor: pointer;
    padding: 0.4rem;
    line-height: 1;
    border-radius: 8px;
}

.au-pass-toggle:hover {
    color: var(--au-navy);
}

.au-pass-toggle:active {
    transform: translateY(-50%) scale(.88);
}

.au-logo-mobile {
    display: block;
    text-align: center;
    margin-bottom: 1.3rem;
    transition: transform .12s ease-out;
}

.au-logo-mobile:active {
    transform: scale(.97);
}

.au-logo-mobile img {
    max-width: 120px;
}

@media (max-width: 575.98px) {
    .au-card {
        padding: 32px 24px;
        border-radius: 22px;
    }

    .au-title {
        font-size: 1.45rem;
    }

    .au-back {
        top: 16px;
        left: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .au-back,
    .au-card .btn-primary,
    .au-card .btn:not(.btn-primary),
    .au-logo-mobile,
    .au-opcion {
        transition: none;
    }

    .au-back:active,
    .au-card .btn-primary:active,
    .au-card .btn:not(.btn-primary):active,
    .au-logo-mobile:active,
    .au-opcion:active {
        transform: none;
    }

    .au-pass-toggle:active {
        transform: translateY(-50%);
    }
}

.au-opciones {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.au-opcion {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 14px 16px;
    background: #fff;
    border: 1.5px solid var(--au-line);
    border-radius: 14px;
    text-align: left;
    cursor: pointer;
    transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.au-opcion:hover {
    border-color: var(--au-navy-mid);
    transform: translateY(-1px);
}

.au-opcion:active {
    transform: scale(.985);
}

.au-opcion strong {
    color: var(--au-ink);
    font-size: 0.9rem;
}

.au-opcion-sub {
    color: var(--au-muted);
    font-size: 0.76rem;
    line-height: 1.35;
}

.au-opcion-ico {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--au-navy);
    color: var(--au-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.au-opcion-check {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--au-gold);
    color: var(--au-navy-deep);
    font-size: 0.65rem;
    display: none;
    align-items: center;
    justify-content: center;
}

.au-opcion.is-activa {
    border-color: var(--au-gold);
    box-shadow: 0 6px 18px rgba(244, 183, 64, 0.28);
    background: rgba(244, 183, 64, 0.07);
}

.au-opcion.is-activa .au-opcion-check {
    display: flex;
}

@media (max-width: 575px) {
    .au-opciones {
        grid-template-columns: 1fr;
    }
}