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;
}

/* Slowbooks public landing page */
.landing-hero {
    position: relative;
    color: #fff;
    background: radial-gradient(ellipse at 82% 18%, rgba(40, 166, 148, .30), transparent 34%), linear-gradient(120deg, #102a3a 0%, #123b4a 55%, #165a5b 100%);
    box-shadow: 0 1.25rem 3.5rem rgba(13, 47, 58, .16);
}
.landing-copy { padding: clamp(2rem, 6vw, 5rem); }
.landing-eyebrow, .landing-section-label { font-size: .75rem; letter-spacing: .14em; font-weight: 750; }
.landing-eyebrow { color: #a9e6d3; display: flex; align-items: center; gap: .6rem; }
.landing-eyebrow-dot { width: .5rem; height: .5rem; border-radius: 50%; background: #75d6b5; box-shadow: 0 0 0 .25rem rgba(117,214,181,.14); }
.landing-copy h1 { max-width: 650px; margin: 1.2rem 0 1rem; font-size: clamp(2.5rem, 5vw, 4.4rem); line-height: 1.04; letter-spacing: -.045em; font-weight: 760; }
.landing-lead { max-width: 550px; color: rgba(255,255,255,.76); font-size: clamp(1.05rem, 1.8vw, 1.25rem); line-height: 1.65; }
.landing-note { color: rgba(255,255,255,.58); font-size: .84rem; }
.landing-preview-wrap { position: relative; padding: 2.5rem clamp(1.5rem, 4vw, 4rem) 3.5rem 1rem; }
.landing-preview { color: #172c35; background: #fff; border: 1px solid rgba(255,255,255,.42); border-radius: 1.1rem; padding: 1.5rem; box-shadow: 0 1.5rem 4rem rgba(3,18,28,.28); transform: rotate(1.2deg); }
.preview-kicker { color: #83949a; font-size: .62rem; letter-spacing: .13em; font-weight: 750; }
.preview-month { font-weight: 700; font-size: 1.06rem; margin-top: .2rem; }
.preview-dot { color: #8b9ba0; letter-spacing: .15em; }
.preview-balance-label, .preview-stat-label { color: #71848b; font-size: .78rem; }
.preview-balance { font-size: 2rem; letter-spacing: -.04em; font-weight: 760; line-height: 1.3; }
.preview-balance span { color: #8c9ba0; font-size: 1.2rem; }
.preview-chart { height: 5rem; display: flex; align-items: end; gap: .42rem; margin: 1.1rem 0; }
.preview-chart span { flex: 1; border-radius: .25rem .25rem 0 0; background: linear-gradient(180deg, #56c7a3, #b9ecda); }
.preview-divider { border-top: 1px solid #edf1f2; }
.preview-stat-label { display: inline-flex; align-items: center; gap: .55rem; }
.preview-stat-label + strong { font-size: .88rem; }
.preview-marker { display: inline-block; width: .5rem; height: .5rem; border-radius: 50%; }
.marker-green { background: #46b68f; }.marker-blue { background: #5598d2; }
.preview-footnote { border-top: 1px solid #edf1f2; color: #61747b; font-size: .72rem; padding-top: .85rem; margin-top: .5rem; }
.preview-check { color: #21a276; font-weight: 800; margin-right: .35rem; }
.landing-float-card { position: absolute; bottom: 1.2rem; left: 0; display: flex; gap: .7rem; align-items: center; padding: .7rem 1rem; border-radius: .8rem; background: #fff; color: #18333b; box-shadow: 0 .8rem 2rem rgba(3,18,28,.2); }
.landing-float-card small, .landing-float-card strong { display: block; }.landing-float-card small { color: #75868c; font-size: .68rem; }.landing-float-card strong { font-size: .85rem; }
.float-icon { width: 2rem; height: 2rem; border-radius: .6rem; display: grid; place-items: center; color: #14805e; background: #e1f5ec; font-size: 1.25rem; }
.landing-section-label { color: #208b6b; text-transform: uppercase; }
.landing-features h2 { color: var(--bs-emphasis-color); letter-spacing: -.025em; }
.landing-feature-card { padding: 1.5rem; border: 1px solid var(--bs-border-color); border-radius: 1rem; background: var(--bs-body-bg); transition: transform .18s ease, box-shadow .18s ease; }
.landing-feature-card:hover { transform: translateY(-3px); box-shadow: 0 .8rem 2rem rgba(20, 54, 60, .08); }
.landing-feature-card h3 { margin: 1.1rem 0 .55rem; font-size: 1.08rem; font-weight: 700; }
.landing-feature-card p { margin: 0; color: var(--bs-secondary-color); line-height: 1.6; font-size: .92rem; }
.feature-icon { display: grid; place-items: center; width: 2.8rem; height: 2.8rem; border-radius: .85rem; font-size: 1.35rem; font-weight: 700; }
.feature-icon-blue { color: #2770a5; background: #e8f3fc; }.feature-icon-green { color: #21815f; background: #e6f5ed; }.feature-icon-purple { color: #7755a3; background: #f1ebfa; }
.landing-cta { padding: 1.5rem 1.75rem; border: 1px solid var(--bs-border-color); background: var(--bs-tertiary-bg); }
.about-hero { padding: clamp(2rem, 5vw, 4rem); border: 1px solid var(--bs-border-color); background: linear-gradient(130deg, var(--bs-tertiary-bg), var(--bs-body-bg) 72%); }
.about-eyebrow { color: #208b6b; font-size: .75rem; letter-spacing: .14em; font-weight: 750; }
.about-hero h1 { max-width: 760px; margin: 1rem 0; color: var(--bs-emphasis-color); font-size: clamp(2.2rem, 4.6vw, 3.6rem); font-weight: 760; line-height: 1.08; letter-spacing: -.04em; }
.about-hero p { max-width: 720px; margin: 0; color: var(--bs-secondary-color); font-size: 1.12rem; line-height: 1.7; }
.about-section-heading h2 { color: var(--bs-emphasis-color); }
.about-card { display: flex; gap: 1rem; padding: 1.4rem; border: 1px solid var(--bs-border-color); border-radius: 1rem; background: var(--bs-body-bg); }
.about-card-number { flex: 0 0 2.6rem; color: #21815f; font-size: .8rem; font-weight: 750; letter-spacing: .08em; }
.about-card h3 { margin: 0 0 .45rem; font-size: 1.02rem; font-weight: 700; }
.about-card p { margin: 0; color: var(--bs-secondary-color); font-size: .92rem; line-height: 1.6; }
.about-note { display: flex; align-items: flex-start; gap: 1rem; padding: 1.4rem 1.6rem; border: 1px solid rgba(32,139,107,.2); background: rgba(32,139,107,.06); }
.about-note-icon { display: grid; flex: 0 0 2.2rem; height: 2.2rem; place-items: center; border-radius: .7rem; color: #16815e; background: rgba(32,139,107,.12); font-weight: 800; }
@media (max-width: 991.98px) { .landing-preview-wrap { max-width: 600px; margin: auto; padding: 1rem 2.5rem 3.5rem; } .landing-float-card { left: 1.5rem; bottom: 1.25rem; } }
@media (max-width: 575.98px) { .landing-copy { padding: 2rem 1.4rem; } .landing-preview-wrap { padding: .75rem 1.4rem 3.5rem; } .landing-float-card { left: .8rem; bottom: 1.1rem; } }

.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-wordmark, .login-mobile-wordmark { display: inline-flex; align-items: center; gap: .6rem; font-size: .78rem; letter-spacing: .14em; font-weight: 800; }
.login-brand-mark { display: inline-grid; width: 2rem; height: 2rem; place-items: center; border-radius: .65rem; color: #12443e; background: #b9f0d8; font-size: 1.1rem; letter-spacing: 0; font-weight: 800; }
.login-mobile-wordmark { justify-content: center; color: #1d574c; }

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

.login-brand-panel {
    background: linear-gradient(135deg, #102a3a 0%, #123b4a 55%, #16806b 100%);
    position: relative;
    min-height: 480px;
}

.login-brand-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(117, 214, 181, .18) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(42, 171, 146, .22) 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);
}

/* 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;
}