:root {
    --login-color-primario: #0d6efd;
    --login-color-fondo: #ffffff;
    --login-color-texto: #212529;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    background:
        linear-gradient(
            135deg,
            var(--login-color-primario),
            color-mix(
                in srgb,
                var(--login-color-primario) 72%,
                #000000
            )
        );
    color: var(--login-color-texto);
    font-family:
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 15px;
}

.login-card {
    width: 100%;
    max-width: 430px;
    padding: 38px 34px;
    background: var(--login-color-fondo);
    border-radius: 18px;
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.22);
    text-align: center;
}

.login-logo {
    display: block;
    max-width: 100%;
    max-height: 84px;
    width: auto;
    height: auto;
    margin: 0 auto 18px;
    object-fit: contain;
}

.login-title {
    margin: 0 0 8px;
    font-size: 1.55rem;
    font-weight: 700;
    word-break: break-word;
}

.login-subtitle {
    margin-bottom: 25px;
    color: #6c757d;
    font-size: 0.95rem;
}

.form-label {
    font-size: 0.92rem;
    font-weight: 600;
}

.form-control {
    min-height: 48px;
    padding: 11px 13px;
    border-radius: 10px;
}

.input-group .form-control {
    border-radius: 10px 0 0 10px;
}

.input-group .btn {
    border-radius: 0 10px 10px 0;
}

.form-control:focus {
    border-color: var(--login-color-primario);
    box-shadow:
        0 0 0 0.2rem
        color-mix(
            in srgb,
            var(--login-color-primario) 22%,
            transparent
        );
}

.btn-tema {
    min-height: 48px;
    background-color: var(--login-color-primario);
    border-color: var(--login-color-primario);
    color: #ffffff;
    border-radius: 10px;
    font-weight: 600;
}

.btn-tema:hover,
.btn-tema:focus {
    background-color:
        color-mix(
            in srgb,
            var(--login-color-primario) 88%,
            #000000
        );

    border-color:
        color-mix(
            in srgb,
            var(--login-color-primario) 88%,
            #000000
        );

    color: #ffffff;
}

.btn-tema:disabled {
    cursor: wait;
    opacity: 0.75;
}

.btn-volver {
    min-height: 45px;
    border: 1px solid #dee2e6;
    border-radius: 10px;
}

#loginAlerta {
    text-align: left;
    font-size: 0.92rem;
}

@media (max-width: 576px) {
    .login-card {
        max-width: 100%;
        padding: 30px 20px;
        border-radius: 15px;
    }

    .login-title {
        font-size: 1.3rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition: none !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}