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

.summary-card { transition: transform .15s ease, box-shadow .15s ease; }
.summary-card:hover { transform: translateY(-2px); }
.table td, .table th { vertical-align: middle; }
.grid-view { overflow-x: auto; }
.form-card { max-width: 980px; }
.detail-header { background: linear-gradient(135deg, var(--bs-primary), #0b5ed7); color: white; }

.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;
}

/* institutional inventory brand panel */
.inventory-brand-panel {
    background: #102b3b;
    isolation: isolate;
    min-height: 540px;
    overflow: hidden;
}

.inventory-brand-panel::before {
    aspect-ratio: 1;
    background:
        radial-gradient(circle at 8% 10%, rgba(64, 179, 216, .34), transparent 34%),
        radial-gradient(circle at 100% 88%, rgba(131, 201, 51, .28), transparent 38%),
        linear-gradient(145deg, rgba(255, 255, 255, .07), transparent 42%);
    border-radius: 50%;
    inset: auto -34% -22% 28%;
    transform: rotate(-12deg);
}

.inventory-brand-panel::after {
    background-image:
        linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
    background-size: 32px 32px;
    content: '';
    inset: 0;
    -webkit-mask-image: linear-gradient(145deg, rgba(0, 0, 0, .7), transparent 62%);
    mask-image: linear-gradient(145deg, rgba(0, 0, 0, .7), transparent 62%);
    pointer-events: none;
    position: absolute;
    z-index: 0;
}

.inventory-brand-content {
    position: relative;
    z-index: 1;
}

.inventory-brand-mark {
    align-items: center;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 14px;
    display: inline-flex;
    height: 50px;
    justify-content: center;
    width: 50px;
}

.inventory-brand-mark svg {
    fill: rgba(131, 201, 51, .2);
    height: 30px;
    stroke: #fff;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
    width: 30px;
}

.inventory-brand-name,
.inventory-brand-subtitle {
    display: block;
}

.inventory-brand-name {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: .16em;
    line-height: 1.1;
}

.inventory-brand-subtitle {
    color: rgba(255, 255, 255, .62);
    font-size: .68rem;
    letter-spacing: .04em;
    margin-top: .28rem;
}

.inventory-brand-eyebrow {
    color: #a9e167;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .15em;
    text-transform: uppercase;
}

.inventory-brand-message .login-brand-title {
    font-size: clamp(2rem, 3vw, 2.65rem);
    letter-spacing: -.035em;
    line-height: 1.06;
}

.inventory-brand-message .login-brand-title span {
    color: #9edb59;
}

.inventory-brand-message .login-brand-text {
    color: rgba(255, 255, 255, .7);
    line-height: 1.65;
    max-width: 320px;
}

.inventory-brand-features {
    color: rgba(255, 255, 255, .86);
    display: grid;
    font-size: .82rem;
    gap: .65rem;
}

.inventory-brand-features li {
    align-items: center;
    display: flex;
    gap: .65rem;
}

.inventory-brand-features li span {
    align-items: center;
    background: rgba(131, 201, 51, .16);
    border-radius: 50%;
    color: #b7eb7a;
    display: inline-flex;
    flex: 0 0 22px;
    font-size: .7rem;
    height: 22px;
    justify-content: center;
}

.inventory-brand-footer {
    color: rgba(255, 255, 255, .5);
    font-size: .7rem;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.inventory-status-dot {
    background: #9edb59;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(158, 219, 89, .12);
    height: 7px;
    width: 7px;
}

.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;
}