:root {
    --color-primary: #003d9b;
    --color-primary-container: #0052cc;
    --color-secondary: #6476A7;
    --color-secondary-container: #b6c8fe;
    --color-tertiary: #A33500;
    --color-on-surface: #191c1d;
    --color-on-surface-variant: #434654;
    --color-outline: #737685;
    --color-outline-variant: #c3c6d6;
    --color-surface: #f8f9fa;
    --color-surface-container-lowest: #ffffff;
}

body {
    background: linear-gradient(135deg, #f8f9fa 0%, #eef1f8 40%, #f0f4ff 70%, #f8f9fa 100%);
    font-family: 'Inter', sans-serif;
    color: var(--color-on-surface);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.font-headline {
    font-family: 'Manrope', sans-serif;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
}

.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
}

/* Background blurs */
.bg-blur-primary {
    position: absolute;
    top: -10%;
    left: -10%;
    width: 40%;
    height: 40%;
    background: rgba(0, 82, 204, 0.08);
    border-radius: 50%;
    filter: blur(120px);
}
.bg-blur-secondary {
    position: absolute;
    bottom: -10%;
    right: -10%;
    width: 40%;
    height: 40%;
    background: rgba(100, 118, 167, 0.12);
    border-radius: 50%;
    filter: blur(120px);
}
.bg-blur-tertiary {
    position: absolute;
    top: 50%;
    right: 20%;
    width: 25%;
    height: 25%;
    background: rgba(163, 53, 0, 0.04);
    border-radius: 50%;
    filter: blur(100px);
}

/* Brand section */
.brand-section {
    display: none;
}
@media (min-width: 768px) {
    .brand-section {
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }
}

.brand-icon {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-container) 100%);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-title {
    font-size: 1.875rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--color-on-surface);
}

.hero-heading {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-on-surface);
}

.hero-heading .accent {
    color: var(--color-primary-container);
}

.hero-description {
    color: var(--color-on-surface-variant);
    font-size: 1.125rem;
    line-height: 1.75;
    max-width: 28rem;
}

.image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}
.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(25, 28, 29, 0.4), transparent);
}

/* Login card */
.login-card {
    width: 100%;
    max-width: 28rem;
    padding: 2.5rem;
    border-radius: 1.5rem;
    box-shadow: 0px 12px 32px rgba(0, 24, 72, 0.08);
    border: 1px solid rgba(182, 200, 254, 0.3);
    position: relative;
    overflow: hidden;
}
.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(to right, var(--color-primary), var(--color-primary-container), var(--color-secondary));
}

.mobile-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}
@media (min-width: 768px) {
    .mobile-logo {
        display: none;
    }
}

.mobile-logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--color-primary);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.welcome-heading {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-on-surface);
    background: linear-gradient(135deg, var(--color-on-surface) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-sub {
    color: var(--color-on-surface-variant);
    font-size: 0.875rem;
}

/* Desktop: respeta el espaciado generoso bajo el bloque de bienvenida */
@media (min-width: 576px) {
    .welcome-block { margin-bottom: 2.5rem !important; }
}

/* Form label */
.form-label-custom {
    display: block;
    font-family: 'Inter', sans-serif;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-on-surface-variant);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

/* Input with icon */
.input-icon-wrapper {
    position: relative;
}
.input-icon-wrapper .icon-left {
    position: absolute;
    top: 50%;
    left: 1rem;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--color-outline);
    font-size: 20px;
}
.input-icon-wrapper .form-control-custom {
    display: block;
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    background-color: #f5f7fc;
    border: 1px solid rgba(182, 200, 254, 0.35);
    border-radius: 0.75rem;
    outline: none;
    transition: all 0.2s;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    color: var(--color-on-surface);
}
.input-icon-wrapper .form-control-custom::placeholder {
    color: rgba(115, 118, 133, 0.5);
}
.input-icon-wrapper .form-control-custom:focus {
    border-color: var(--color-primary-container);
    box-shadow: 0 0 0 4px rgba(0, 82, 204, 0.1);
    background-color: #ffffff;
}
.input-icon-wrapper .form-control-password {
    padding-right: 3rem;
}
.input-icon-wrapper .btn-toggle-password {
    position: absolute;
    top: 50%;
    right: 1rem;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 0;
    color: var(--color-outline);
    cursor: pointer;
    transition: color 0.2s;
    font-size: 20px;
}
.input-icon-wrapper .btn-toggle-password:hover {
    color: var(--color-primary);
}

/* Checkbox */
.form-check-input-custom {
    width: 1rem;
    height: 1rem;
    accent-color: var(--color-primary);
    border: 1px solid rgba(195, 198, 214, 0.3);
    border-radius: 0.25rem;
}

.link-forgot {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary-container);
    text-decoration: none;
    transition: color 0.2s;
}
.link-forgot:hover {
    color: var(--color-primary);
}

/* Submit button */
.btn-submit {
    width: 100%;
    background: linear-gradient(to right, var(--color-primary), var(--color-primary-container));
    color: #ffffff;
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    border: none;
    font-family: 'Manrope', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0px 4px 12px rgba(0, 61, 155, 0.2);
    transition: all 0.3s;
    cursor: pointer;
}
.btn-submit:hover {
    box-shadow: 0px 8px 24px rgba(0, 61, 155, 0.3);
    transform: scale(1.02);
}
.btn-submit:active {
    transform: scale(0.98);
}

/* Footer divider */
.footer-divider {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(182, 200, 254, 0.25);
    text-align: center;
}
.footer-divider p {
    color: var(--color-on-surface-variant);
    font-size: 0.875rem;
}
.footer-divider a {
    font-weight: 700;
    color: var(--color-primary-container);
    text-decoration: none;
    margin-left: 0.25rem;
}
.footer-divider a:hover {
    text-decoration: underline;
}

/* Support button */
.btn-support {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--color-surface-container-lowest);
    border: 1px solid rgba(195, 198, 214, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    transition: all 0.2s;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-on-surface);
    text-decoration: none;
}
.btn-support:hover {
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    color: var(--color-on-surface);
    text-decoration: none;
}
.btn-support .material-symbols-outlined {
    color: var(--color-primary);
    font-size: 20px;
}

/* Main grid */
.main-grid {
    max-width: 72rem;
}

/* ──────────────────────────────────────────────────────────
   ICON FALLBACK — evita "tofu" rojo si la font tarda en cargar
   ────────────────────────────────────────────────────────── */
.material-symbols-outlined {
    font-family: 'Material Symbols Outlined', 'Material Icons', sans-serif;
    font-weight: normal;
    font-style: normal;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-feature-settings: 'liga';
    -webkit-font-smoothing: antialiased;
}
/* Si la fuente no ha cargado, ocultamos el texto literal del span
   para que no aparezcan cuadros rojos / placeholders */
.material-symbols-outlined:not(:lang(zxx)) {
    font-size-adjust: none;
}
.material-symbols-outlined::first-letter { color: inherit; }

/* ──────────────────────────────────────────────────────────
   MOBILE — Diseño fullscreen tipo app nativa  (≤ 575px)
   ────────────────────────────────────────────────────────── */
@media (max-width: 575.98px) {
    html, body {
        height: 100%;
        overflow-x: hidden;
    }

    body {
        align-items: stretch;
        justify-content: stretch;
        padding: 0;
        background: #ffffff;
        min-height: 100dvh; /* viewport dinámico para barra del navegador */
    }

    /* Quitamos los blurs decorativos en móvil:
       reemplazamos por un único hero de gradiente arriba */
    .bg-blur-primary,
    .bg-blur-secondary,
    .bg-blur-tertiary { display: none; }

    main.container-fluid {
        padding: 0 !important;
        min-height: 100dvh;
        display: flex;
        flex-direction: column;
    }

    .row.main-grid {
        margin: 0 !important;
        flex: 1;
        display: flex;
        flex-direction: column;
        --bs-gutter-x: 0;
    }

    .brand-section { display: none !important; }

    .col-md-6.d-flex.justify-content-center {
        padding: 0 !important;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    /* ── La "tarjeta" se vuelve la pantalla completa ── */
    .login-card {
        max-width: 100%;
        width: 100%;
        flex: 1;
        margin: 0;
        padding: 0;
        border-radius: 0;
        border: none;
        box-shadow: none;
        background: #ffffff;
        display: flex;
        flex-direction: column;
        position: relative;
        overflow: visible;
    }
    .login-card::before { display: none; }
    .login-card::after  { display: none; }

    /* ── HERO superior real (no pseudo) con gradiente y branding ── */
    .mobile-logo {
        position: relative;
        z-index: 1;
        display: flex !important;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 0.875rem;
        padding: 3rem 1.5rem 2.5rem;
        margin: 0 0 1.75rem;
        color: #ffffff;
        background:
            radial-gradient(120% 100% at 50% 0%, rgba(0, 82, 204, 0.18) 0%, rgba(0, 82, 204, 0) 60%),
            linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-container) 100%);
        border-bottom-left-radius: 28px;
        border-bottom-right-radius: 28px;
        box-shadow: 0 12px 24px -8px rgba(0, 24, 72, 0.25);
    }
    .mobile-logo-icon {
        width: 4rem;
        height: 4rem;
        background: rgba(255, 255, 255, 0.16);
        border: 1px solid rgba(255, 255, 255, 0.28);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-radius: 1.125rem;
        box-shadow: 0 12px 28px rgba(0, 24, 72, 0.28);
    }
    .mobile-logo-icon .material-symbols-outlined {
        font-size: 2rem !important;
        color: #ffffff !important;
    }
    .mobile-logo > span:last-child {
        font-size: 1.5rem !important;
        font-weight: 800;
        letter-spacing: -0.02em;
        color: #ffffff;
        text-shadow: 0 2px 12px rgba(0, 24, 72, 0.25);
    }

    /* ── Bloque de bienvenida ── */
    .login-card > .mb-4 {
        text-align: left;
        padding: 0 1.5rem;
        margin: 0 0 1.5rem !important;
        position: relative;
        z-index: 2;
    }
    .welcome-heading {
        font-size: 1.5rem;
        line-height: 1.2;
        margin-bottom: 0.5rem;
        background: none;
        -webkit-text-fill-color: var(--color-on-surface);
        color: var(--color-on-surface);
    }
    .welcome-sub {
        font-size: 0.875rem;
        line-height: 1.5;
        max-width: 100%;
        margin: 0;
    }

    .login-card > form {
        padding: 0 1.5rem;
        flex: 1;
        display: flex;
        flex-direction: column;
        position: relative;
        z-index: 2;
    }

    /* Espaciado más natural entre campos */
    .login-card form > .mb-4 { margin-bottom: 1.125rem !important; }

    .form-label-custom {
        font-size: 0.6875rem;
        margin-bottom: 0.5rem;
        color: var(--color-on-surface-variant);
    }

    /* Inputs más altos, suaves y táctiles */
    .input-icon-wrapper .form-control-custom {
        padding: 1rem 1rem 1rem 3rem;
        font-size: 16px;          /* sin zoom iOS */
        background-color: #f5f7fc;
        border: 1.5px solid transparent;
        border-radius: 0.875rem;
        height: auto;
        min-height: 52px;
        transition: all 0.2s ease;
    }
    .input-icon-wrapper .form-control-custom:focus {
        background-color: #ffffff;
        border-color: var(--color-primary-container);
        box-shadow: 0 0 0 4px rgba(0, 82, 204, 0.12);
    }
    .input-icon-wrapper .icon-left {
        left: 1rem;
        font-size: 20px;
        color: var(--color-outline);
    }
    .input-icon-wrapper .form-control-custom:focus + ~ .icon-left,
    .input-icon-wrapper .form-control-custom:focus ~ .icon-left {
        color: var(--color-primary-container);
    }
    .input-icon-wrapper .btn-toggle-password {
        right: 1rem;
        font-size: 20px;
        padding: 0.25rem;
    }
    .input-icon-wrapper .form-control-password {
        padding-right: 3.25rem;
    }

    /* Fila opciones */
    .login-card form > .d-flex.justify-content-between {
        flex-direction: row;
        flex-wrap: nowrap;
        align-items: center;
        gap: 0.75rem;
        padding: 0.25rem 0 !important;
        margin-bottom: 1.5rem !important;
    }
    .form-check-input-custom { width: 1.125rem; height: 1.125rem; }
    .form-check-label { font-size: 0.8125rem !important; }
    .link-forgot {
        font-size: 0.8125rem;
        white-space: nowrap;
        font-weight: 600;
    }

    /* CTA principal — botón con altura cómoda y sombra elevada */
    .btn-submit {
        padding: 1.05rem 1.25rem;
        font-size: 1rem;
        border-radius: 0.875rem;
        min-height: 54px;
        box-shadow: 0 10px 24px rgba(0, 61, 155, 0.28);
        letter-spacing: 0.01em;
    }
    .btn-submit:hover { transform: none; }   /* sin scale en móvil */
    .btn-submit:active { transform: scale(0.985); }

    /* Footer fijo en la base, no colgando */
    .footer-divider {
        margin-top: auto;
        padding: 1.5rem 1.5rem calc(1.25rem + env(safe-area-inset-bottom));
        border-top: 1px solid rgba(195, 198, 214, 0.25);
        background: #ffffff;
    }
    .footer-divider p {
        font-size: 0.8125rem;
        margin: 0;
    }
    .footer-divider a { font-weight: 700; }

    /* Soporte: FAB compacto, no estorba */
    .btn-support {
        bottom: calc(5.5rem + env(safe-area-inset-bottom));
        right: 1rem;
        padding: 0;
        width: 2.75rem;
        height: 2.75rem;
        border-radius: 50%;
        justify-content: center;
        box-shadow: 0 8px 20px rgba(0, 24, 72, 0.18);
        background-color: #ffffff;
    }
    .btn-support span:not(.material-symbols-outlined) { display: none; }
    .btn-support .material-symbols-outlined { font-size: 22px; margin: 0; }
}

/* Tablet portrait */
@media (min-width: 576px) and (max-width: 767.98px) {
    body { padding: 2rem 0; align-items: flex-start; }
    .login-card { padding: 2rem; }
    .input-icon-wrapper .form-control-custom { font-size: 16px; }
}

/* Landscape phones */
@media (max-height: 720px) and (max-width: 767.98px) and (orientation: landscape) {
    .login-card::after { height: 180px; }
    .mobile-logo { padding: 2rem 1.5rem 1.25rem; }
    .mobile-logo-icon { width: 3rem; height: 3rem; }
    .mobile-logo-icon .material-symbols-outlined { font-size: 1.5rem !important; }
    .mobile-logo > span:last-child { font-size: 1.25rem !important; }
}