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-wordmark-mobile {
    color: var(--bs-heading-color) !important;
}

/* 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;
}

/* admin dashboard */
.dashboard-stat-card {
    border-width: 0 0 0 3px;
    transition: transform .15s ease-in-out, box-shadow .15s ease-in-out;
    color: inherit;
}

.dashboard-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, .1) !important;
}

.dashboard-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.2;
}

.dashboard-stat-label {
    font-size: .875rem;
    font-weight: 600;
    margin-top: .25rem;
}

/* diagnostic cards list */
.dc-filters-card .card-header {
    background-color: var(--bs-tertiary-bg);
}

.dc-filters-toggle {
    display: flex;
    align-items: center;
    gap: .5rem;
    width: 100%;
    margin: 0;
    padding: .75rem 1rem;
    border: 0;
    background: transparent;
    color: inherit;
    text-align: left;
    cursor: pointer;
    transition: background-color .15s ease-in-out;
}

.dc-filters-toggle:hover {
    background-color: rgba(var(--bs-emphasis-color-rgb), 0.06);
}

.dc-filters-toggle:focus-visible {
    outline: 2px solid var(--bs-primary);
    outline-offset: -2px;
}

.dc-filters-chevron {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    background-color: var(--bs-primary);
    position: relative;
}

.dc-filters-chevron::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 42%;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid #fff;
    transform: translate(-50%, -50%);
    transition: transform .2s ease;
}

.dc-filters-toggle[aria-expanded='true'] .dc-filters-chevron::after {
    transform: translate(-50%, -50%) rotate(180deg);
}

.dc-filters-hint-open {
    display: none;
}

.dc-filters-toggle[aria-expanded='true'] .dc-filters-hint-closed {
    display: none;
}

.dc-filters-toggle[aria-expanded='true'] .dc-filters-hint-open {
    display: inline;
}

@media (max-width: 575.98px) {
    .dc-filters-hint {
        display: none !important;
    }
}

.dc-quick-filters .btn {
    white-space: nowrap;
}

.dc-filter-form .form-label {
    font-size: .875rem;
    margin-bottom: .25rem;
}

.dc-mobile-dl {
    display: grid;
    grid-template-columns: minmax(6rem, 35%) 1fr;
    gap: .35rem .75rem;
    margin: 0;
}

.dc-mobile-dl dt {
    margin: 0;
    font-weight: 600;
    color: var(--bs-secondary-color);
}

.dc-mobile-dl dd {
    margin: 0;
}

/* Пагинация списков (десктоп и мобильная) */
.list-pager--desktop {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem 1rem;
    padding-top: 0.25rem;
}

.list-pager--desktop .list-pager__summary {
    flex: 1 1 auto;
    min-width: 12rem;
}

.list-pager--desktop nav {
    flex: 0 1 auto;
    max-width: 100%;
}

.list-pager--mobile {
    margin-top: 0.5rem;
    padding: 0.75rem 0 0.25rem;
    border-top: 1px solid var(--bs-border-color);
}

.list-pager--mobile .list-pager__page-num {
    white-space: nowrap;
}

.list-pager .pagination {
    margin-bottom: 0;
}

.list-pager .page-link {
    min-width: 2.25rem;
    text-align: center;
}

.dc-desktop-grid .table {
    font-size: .925rem;
}

.entity-desktop-grid .table {
    font-size: .925rem;
}

.dc-desktop-grid .table td,
.dc-desktop-grid .table th {
    vertical-align: middle;
}

/* Десктоп: ровные строки — общие отступы и минимальная высота ячейки */
.diagnostic-card-index .dc-desktop-grid .table > thead > tr > th,
.diagnostic-card-index .dc-desktop-grid .table > tbody > tr > td {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.diagnostic-card-index .dc-desktop-grid .table > tbody > tr > td {
    min-height: 4.75rem;
}

.diagnostic-card-index .dc-desktop-grid .table > tbody > tr > td .btn-sm {
    white-space: nowrap;
}

/* Собственник: фиксированный «карман» под 2 строки имени + плюс; ИНН/КПП в одну строку */
.dc-owner-cell {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 0;
    max-width: 18rem;
}

.dc-owner-name-row {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 0.35rem;
    min-width: 0;
}

.dc-owner-name-text {
    flex: 1 1 auto;
    min-width: 0;
    min-height: 2.7em;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    word-break: break-word;
    line-height: 1.35;
}

.dc-owner-name-text a {
    color: var(--bs-link-color);
}

.dc-owner-innkpp {
    display: block;
    min-height: 1.25em;
    line-height: 1.25;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dc-owner-add-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 1.35rem;
    height: 1.35rem;
    align-self: flex-start;
    margin-top: 0.1em;
    border-radius: 50%;
    border: 1px solid var(--bs-warning);
    color: var(--bs-warning);
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    vertical-align: middle;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.dc-owner-add-link__plus {
    font-size: 1.05rem;
    line-height: 1;
    position: relative;
    top: -0.05em;
}

.dc-owner-add-link:hover {
    background-color: rgba(var(--bs-warning-rgb), 0.12);
    color: var(--bs-warning);
    border-color: var(--bs-warning);
}

.dc-owner-add-link:focus-visible {
    outline: 2px solid var(--bs-warning);
    outline-offset: 2px;
}

/* Марка/модель: такой же двухстрочный блок */
.dc-col-brand-model {
    max-width: 12rem;
    min-width: 0;
    vertical-align: middle;
}

.dc-line-clamp-2 {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    word-break: break-word;
    line-height: 1.35;
    min-height: 2.7em;
}

.dc-pdf-preview {
    min-height: 480px;
    height: 70vh;
    max-height: 720px;
    background: var(--bs-tertiary-bg);
}

.api-log-pre {
    max-height: 420px;
    overflow: auto;
    font-size: .8rem;
    background: var(--bs-tertiary-bg);
    padding: .75rem;
    border-radius: .375rem;
    white-space: pre-wrap;
    word-break: break-word;
}

/* entity forms (user, organization, employee) */
.entity-form-page {
    max-width: 42rem;
}

.entity-form-section__title {
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--bs-secondary-color);
    margin-bottom: .75rem;
    padding-bottom: .5rem;
    border-bottom: 1px solid var(--bs-border-color);
}

.entity-form-section__desc {
    font-size: .875rem;
    color: var(--bs-secondary-color);
    margin: -.25rem 0 1rem;
}

.entity-form-section__desc code {
    font-size: .8em;
}

.entity-form .form-group {
    margin-bottom: 1.25rem;
}

.entity-form-actions {
    margin-top: .5rem;
}

.entity-org-checklist__item {
    padding: .65rem .85rem;
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    background: var(--bs-body-bg);
    transition: border-color .15s ease-in-out, background-color .15s ease-in-out;
}

.entity-org-checklist__item:has(.form-check-input:checked) {
    border-color: var(--bs-primary);
    background-color: rgba(var(--bs-primary-rgb), 0.06);
}

.entity-org-checklist__item .form-check-input {
    margin-top: .2rem;
}

@media (max-width: 767.98px) {
    .diagnostic-card-index h1 {
        font-size: 1.35rem;
    }

    .entity-list-index h1 {
        font-size: 1.35rem;
    }

    .entity-list-index .dc-filters-card .card-body {
        padding: 1rem;
    }

    .entity-list-index .dc-filters-card .form-group {
        margin-bottom: 0.75rem;
    }

    .entity-list-index .dc-mobile-card .d-grid .btn {
        width: 100%;
    }

    .dc-filters-card .card-body {
        padding: 1rem;
    }

    .entity-form-page .card-body {
        padding: 1.25rem !important;
    }
}