main > .container {
    padding: 24px 15px 24px;
    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;
}

/* =========================================================
   PsiKlinik — NEON DARK TEMA (modern koyu + neon çerçeve)
   ========================================================= */
[data-bs-theme="dark"] body {
    background:
        radial-gradient(1100px 560px at 80% -8%, rgba(34, 211, 238, .10), transparent 60%),
        radial-gradient(820px 480px at 6% 10%, rgba(167, 139, 250, .10), transparent 55%),
        #070b16;
    color: #dbe4f0;
}

/* Navbar: cam + neon alt çizgi + parıltı */
[data-bs-theme="dark"] .navbar.sticky-top {
    background: rgba(9, 13, 24, .72) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(34, 211, 238, .28);
    box-shadow: 0 1px 0 rgba(34, 211, 238, .35), 0 10px 30px -12px rgba(34, 211, 238, .25);
}
[data-bs-theme="dark"] .navbar-brand {
    font-weight: 800;
    color: #67e8f9 !important;
    text-shadow: 0 0 10px rgba(34, 211, 238, .55);
}
[data-bs-theme="dark"] .navbar .nav-link {
    color: #c2cee0 !important;
    border: 1px solid rgba(148, 163, 184, .16);
    background: rgba(148, 163, 184, .05);
    border-radius: 10px;
    margin: 0 4px;
    padding: .42rem .85rem !important;
    transition: .18s ease;
}
[data-bs-theme="dark"] .navbar .nav-link:hover {
    color: #eafcff !important;
    border-color: rgba(34, 211, 238, .5);
    box-shadow: 0 0 14px -2px rgba(34, 211, 238, .55), inset 0 0 10px -4px rgba(34, 211, 238, .4);
}
[data-bs-theme="dark"] .navbar .nav-item.active > .nav-link,
[data-bs-theme="dark"] .navbar .nav-link.active {
    color: #fff !important;
    background: rgba(34, 211, 238, .10);
    border-color: rgba(34, 211, 238, .65);
    box-shadow: 0 0 16px -2px rgba(34, 211, 238, .6), inset 0 0 12px -4px rgba(34, 211, 238, .5);
}
/* Açılır menü (Ayarlar) — neon koyu */
[data-bs-theme="dark"] .navbar .dropdown-menu {
    background: rgba(12, 17, 28, .98);
    border: 1px solid rgba(34, 211, 238, .28);
    border-radius: 12px;
    box-shadow: 0 14px 36px -12px rgba(0, 0, 0, .75);
    padding: 6px;
}
[data-bs-theme="dark"] .navbar .dropdown-item {
    color: #c2cee0;
    border-radius: 8px;
    padding: .45rem .8rem;
}
[data-bs-theme="dark"] .navbar .dropdown-item:hover,
[data-bs-theme="dark"] .navbar .dropdown-item:focus {
    background: rgba(34, 211, 238, .14);
    color: #eafcff;
}

/* Genel kartlar: neon ince çerçeve + hover parıltı */
[data-bs-theme="dark"] .card {
    background: rgba(17, 24, 42, .66);
    border: 1px solid rgba(34, 211, 238, .14);
    box-shadow: 0 10px 30px -16px rgba(0, 0, 0, .7);
    backdrop-filter: blur(6px);
    transition: border-color .2s, box-shadow .2s, transform .2s;
}
[data-bs-theme="dark"] .card:hover {
    border-color: rgba(34, 211, 238, .4);
    box-shadow: 0 0 0 1px rgba(34, 211, 238, .12), 0 0 26px -8px rgba(34, 211, 238, .30);
}
[data-bs-theme="dark"] .card-header { border-bottom-color: rgba(148, 163, 184, .14); }

/* Birincil buton + hafif neon glow */
[data-bs-theme="dark"] .btn-primary {
    box-shadow: 0 0 16px -6px rgba(34, 211, 238, .7);
}
[data-bs-theme="dark"] .table { --bs-table-bg: transparent; }
[data-bs-theme="dark"] a { text-decoration-color: rgba(34, 211, 238, .5); }

/* Neon çerçeveyle nefes alması için tutarlı iç boşluk (içerik kenara yapışmasın) */
[data-bs-theme="dark"] .card-body { padding-left: 1.25rem; padding-right: 1.25rem; }
[data-bs-theme="dark"] .card-header { padding-left: 1.25rem; padding-right: 1.25rem; }
[data-bs-theme="dark"] .list-group-item { padding-left: 1.25rem; padding-right: 1.25rem; }