main > .container {
    padding: 70px 15px 20px;
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.not-set {
    color: var(--bs-danger);
    font-style: italic;
}

/* add sorting icons to gridview sort links */
a.asc:after, a.desc:after {
    content: '';
    left: 3px;
    display: inline-block;
    width: 0;
    height: 0;
    border: solid 5px transparent;
    margin: 4px 4px 2px 4px;
    background: transparent;
}

a.asc:after {
    border-bottom: solid 7px var(--bs-body-color);
    border-top-width: 0;
}

a.desc:after {
    border-top: solid 7px var(--bs-body-color);
    border-bottom-width: 0;
}

.grid-view th {
    white-space: nowrap;
}

.hint-block {
    display: block;
    margin-top: 5px;
    color: var(--bs-secondary-color);
}

.error-summary {
    color: var(--bs-danger-text-emphasis);
    background: var(--bs-danger-bg-subtle);
    border-left: 3px solid var(--bs-danger-border-subtle);
    padding: 10px 20px;
    margin: 0 0 15px 0;
}

/* align navbar brand baseline with nav links */
.navbar > .container,
.navbar > .container-fluid {
    align-items: baseline;
}

/* align the logout "link" (button in form) of the navbar */
.nav li > form > button.logout {
    color: var(--bs-navbar-color);
}

@media (max-width: 767.98px) {
    .navbar-nav .nav-link.logout {
        display: block;
        text-align: left;
        width: 100%;
        padding: 10px 0;
    }
}

.navbar-nav .nav-link.logout:focus,
.navbar-nav .nav-link.logout:hover {
    color: var(--bs-navbar-hover-color);
}

/* footer logo: light logo by default (light bg-body-tertiary), dark logo for dark theme */
.footer-logo-dark { display: none; }

[data-bs-theme="dark"] .footer-logo-light { display: none; }
[data-bs-theme="dark"] .footer-logo-dark  { display: inline-block; }

/* login inputs: seamless icon inside input (Volt style) */
.login-split-card .input-group {
    border: var(--bs-border-width) solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    overflow: hidden;
    transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;
}

.login-split-card .input-group .input-group-text {
    background: transparent;
    border: 0;
    padding-left: 1rem;
    padding-right: .75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-split-card .input-group .form-control {
    border: 0;
    background: transparent;
}

.login-split-card .input-group .form-control:focus {
    box-shadow: none;
}

.login-split-card .input-group:focus-within {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 .25rem rgba(var(--bs-primary-rgb), .25);
}

/* validation styles for login split card (browsers with :has()) */
@supports selector(.input-group:has(.is-invalid)) {
    .login-split-card .input-group:has(.is-invalid) ~ .invalid-feedback {
        display: block;
        margin-top: .35rem;
        margin-bottom: .5rem;
    }

    .login-split-card .input-group:has(.is-invalid) {
        border-color: var(--bs-danger);
    }

    .login-split-card .input-group:has(.is-invalid):focus-within {
        box-shadow: 0 0 0 .25rem rgba(var(--bs-danger-rgb), .25);
    }
}

/* fallback validation styles for login split card (browsers without :has()) */
@supports not selector(.input-group:has(.is-invalid)) {
    .login-split-card .invalid-feedback:not(:empty) {
        display: block;
        margin-top: .35rem;
        margin-bottom: .5rem;
    }

    .login-split-card .input-group .form-control.is-invalid {
        border: var(--bs-border-width) solid var(--bs-danger);
    }

    .login-split-card .input-group .form-control.is-invalid:focus {
        box-shadow: 0 0 0 .25rem rgba(var(--bs-danger-rgb), .25);
    }
}

/* login split card */
.login-split-card {
    border-radius: 1rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, .10);
    background-color: var(--bs-gray-100);
    width: 100%;
    max-width: 900px;
}

.login-split-card-wide {
    max-width: 960px;
}

.login-brand-title {
    font-size: 1.75rem;
    line-height: 1.3;
}

.login-brand-text {
    font-size: .9rem;
}

.login-brand-panel {
    background: linear-gradient(135deg, #40B3D8 0%, #3a9cbd 40%, #83C933 100%);
    position: relative;
    min-height: 480px;
}

.login-brand-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(241, 138, 42, .25) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(131, 201, 51, .2) 0%, transparent 40%);
    pointer-events: none;
}

.login-btn {
    background: linear-gradient(135deg, #40B3D8, #3a9cbd);
    border: none;
    font-weight: 600;
    letter-spacing: .02em;
    transition: opacity .2s, transform .1s;
}

.login-btn:hover {
    opacity: .9;
    transform: translateY(-1px);
}

.login-btn:active {
    transform: translateY(0);
}

/* dark mode login card */
[data-bs-theme="dark"] .login-split-card {
    background-color: var(--bs-body-bg);
    box-shadow: 0 0 0 1px var(--bs-border-color), 0 4px 24px rgba(0, 0, 0, .4);
}

[data-bs-theme="dark"] .login-mobile-logo {
    filter: invert(1);
}

/* contact form textarea height */
.site-contact textarea.form-control {
    height: 140px;
}

/* captcha: blend with card background */
.site-contact img[src*="captcha"] {
    border-radius: var(--bs-border-radius);
    mix-blend-mode: multiply;
}

/* dark mode: invert captcha for visibility on dark background */
[data-bs-theme="dark"] .site-contact img[src*="captcha"] {
    mix-blend-mode: screen;
    filter: invert(1) hue-rotate(180deg);
}

/* centered page layout */
.site-login,
.site-contact,
.site-index,
.site-error,
.site-about,
.site-contact-success {
    flex: 1;
}

.site-error .site-error-content,
.site-about .site-about-content,
.site-contact-success .site-contact-success-content {
    width: 100%;
    max-width: 90%;
}

@media (min-width: 576px) {
    .site-error .site-error-content,
    .site-about .site-about-content,
    .site-contact-success .site-contact-success-content {
        max-width: 80%;
    }
}

@media (min-width: 768px) {
    .site-error .site-error-content,
    .site-about .site-about-content,
    .site-contact-success .site-contact-success-content {
        max-width: 60%;
    }
}

@media (min-width: 992px) {
    .site-error .site-error-content,
    .site-about .site-about-content,
    .site-contact-success .site-contact-success-content {
        max-width: 50%;
    }
}

/* hero banner */
.hero-banner {
    background: linear-gradient(135deg, #83C933 0%, #3a9cbd 40%, #40B3D8 100%);
    position: relative;
}

.hero-lead {
    max-width: 520px;
}

.hero-logo {
    height: 120px;
    opacity: .45;
    right: 2.5rem;
    top: 50%;
    transform: translateY(-50%);
}

.hero-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background:
        radial-gradient(circle at 15% 85%, rgba(241, 138, 42, .3) 0%, transparent 45%),
        radial-gradient(circle at 85% 15%, rgba(131, 201, 51, .25) 0%, transparent 40%),
        radial-gradient(ellipse at 50% 50%, rgba(64, 179, 216, .15) 0%, transparent 60%);
    pointer-events: none;
}

/* extension cards */
.extension-card {
    transition: transform .15s ease-in-out, box-shadow .15s ease-in-out;
}

.extension-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, .12) !important;
}

.extension-icon {
    font-size: 1.5rem;
    line-height: 1;
}

/* dark mode: extension cards */
[data-bs-theme="dark"] .extension-card {
    background-color: var(--bs-body-bg);
    box-shadow: 0 0 0 1px var(--bs-border-color), 0 2px 8px rgba(0, 0, 0, .3);
}

[data-bs-theme="dark"] .extension-card:hover {
    box-shadow: 0 0 0 1px var(--bs-border-color), 0 8px 24px rgba(0, 0, 0, .4) !important;
}

/* Formularios: más espacio entre campos */
form .form-group {
    margin-bottom: 1.75rem !important;
}

/* Validación: mensajes de error visibles y en rojo */
.invalid-feedback,
.has-error .invalid-feedback,
.has-error .help-block,
.help-block-error {
    display: block;
    color: #dc3545;
}
.form-control.is-invalid,
.form-select.is-invalid,
.has-error .form-control,
.has-error .form-select {
    border-color: #dc3545;
}

/* Títulos de páginas CRUD más compactos */
main h1:not([class]) {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

/* Marcar campos obligatorios con asterisco rojo */
.required > label::after {
    content: " *";
    color: #dc3545;
}

/* Punto de aviso al lado del título, p. ej. la venta que quedó sin cerrar */
.punto-advertencia {
    display: inline-block;
    width: 0.7rem;
    height: 0.7rem;
    border-radius: 50%;
    background-color: var(--bs-warning);
    vertical-align: middle;
}

/* Columna de acciones: mantener los íconos en una sola línea */
.grid-view td:last-child,
.grid-view th:last-child {
    min-width: 65px;
    white-space: nowrap;
}

/* Permitir que los hijos flex del contenedor se encojan (para que .table-responsive
   contenga el scroll horizontal en vez de desbordar la página) */
main > .container {
    min-width: 0;
}
main > .container > * {
    min-width: 0;
    max-width: 100%;
}

/* Filas de listado clickeables (llevan al detalle) */
.grid-view tbody tr:has(td:last-child a[href]) {
    cursor: pointer;
}

/* ============================================================
   Impresión: dejar sólo el contenido del informe, en hoja blanca
   ============================================================ */
@media print {
    /* Forzar apariencia clara aunque se esté navegando en modo oscuro */
    :root,
    :root[data-bs-theme="dark"] {
        color-scheme: light;
        --bs-body-bg: #fff;
        --bs-body-color: #000;
        --bs-border-color: #999;
        --bs-table-bg: #fff;
        --bs-table-color: #000;
        --bs-table-striped-bg: #fff;
        --bs-table-striped-color: #000;
        --bs-secondary-color: #000;
    }

    body {
        background: #fff !important;
        color: #000 !important;
    }

    /* Ocultar cromo de la aplicación */
    #header,
    #footer,
    .breadcrumb,
    .footer,
    .grid-view .summary,
    .pagination,
    .d-print-none {
        display: none !important;
    }

    /* Aprovechar todo el ancho de la hoja */
    main > .container {
        padding: 0 !important;
        margin: 0 !important;
        max-width: none !important;
        width: 100% !important;
        display: block !important;
        min-height: 0 !important;
    }

    .table-responsive {
        overflow: visible !important;
    }

    /* Título del informe centrado, como en la versión anterior */
    .informe-generar > .d-flex {
        display: block !important;
    }

    .informe-generar h1 {
        text-align: center;
        font-size: 18pt;
        margin-bottom: .4rem;
    }

    .informe-generar p,
    .informe-generar ul {
        font-size: 9pt;
        margin-bottom: .2rem;
    }

    /* Tabla compacta y legible */
    .grid-view table {
        width: 100% !important;
        font-size: 8pt;
        border-collapse: collapse;
    }

    .grid-view th,
    .grid-view td {
        padding: 2px 4px !important;
        border: 1px solid #999 !important;
        color: #000 !important;
        background: #fff !important;
    }

    .grid-view tfoot td {
        font-size: 8pt;
        border-top: 2px solid #333 !important;
    }

    /* Repetir la cabecera en cada página y no cortar filas */
    .grid-view thead {
        display: table-header-group;
    }

    .grid-view tr {
        page-break-inside: avoid;
    }

    a {
        color: #000 !important;
        text-decoration: none;
    }

    @page {
        margin: 10mm;
    }
}