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;
}

/* style navbar logout link color, hover state, and mobile layout */
.navbar-nav .nav-link.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; }

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

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

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

/* form inputs: seamless icon inside input (Volt style) */
.form-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;
}

.form-card .input-group .input-group-text {
    background: var(--bs-body-bg);
    border: 0;
    padding-left: 1rem;
    padding-right: .75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-card .input-group .form-control {
    border: 0;
}

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

.form-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 browsers that support :has() */
@supports selector(.input-group:has(.is-invalid)) {
    .form-card .input-group:has(.is-invalid) ~ .invalid-feedback {
        display: block;
        margin-top: .35rem;
        margin-bottom: .5rem;
    }

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

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

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

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

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

/* 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;
}

/* form cards */
.form-card {
    border-radius: 1rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, .10);
}

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

/* 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-signup,
.site-contact,
.site-request-password-reset,
.site-reset-password,
.site-resend-verification-email,
.site-index,
.site-error,
.site-about {
    flex: 1;
}

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

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

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

@media (min-width: 992px) {
    .site-error .site-error-content,
    .site-about .site-about-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;
}

/* ---------- Header: สีพื้นเหมือนแอพเดิม (committee/assets/app.css) + โลโก้ ---------- */
.app-navbar {
    min-height: 56px;
    background: linear-gradient(135deg, #0f4c81, #0b3a63);
    box-shadow: 0 2px 10px rgba(11, 58, 99, .25);
}
/* เส้นสีทองใต้ header */
.app-navbar::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 3px;
    background: linear-gradient(90deg, #c9a24b, rgba(201, 162, 75, 0));
    pointer-events: none;
}
.app-navbar .navbar-nav .nav-link { color: rgba(255, 255, 255, .82); }
.app-navbar .navbar-nav .nav-link:hover,
.app-navbar .navbar-nav .nav-link:focus { color: #fff; }
.app-navbar .navbar-nav .nav-link.active { color: #fff; font-weight: 600; }
.app-navbar .navbar-collapse.show,
.app-navbar .navbar-collapse.collapsing { padding-bottom: .5rem; }
/* โลโก้ออกแบบบนพื้นขาว จึงมีพื้นขาวมุมมนรองรับบนแถบสีน้ำเงิน */
.navbar-brand-logo {
    display: block;
    height: 40px;
    width: auto;
    padding: 2px 6px;
    border-radius: 8px;
    background: #fff;
}
@media (max-width: 575.98px) {
    .navbar-brand-logo { height: 34px; }
}

/* ---------- ฟอนต์เดียวกันทั้งระบบ (header / footer / เนื้อหา / ฟอร์ม / dropdown / tooltip) ---------- */
:root,
[data-bs-theme="light"],
[data-bs-theme="dark"] {
    --app-font: "IBM Plex Sans Thai", "Sarabun", "Noto Sans Thai", system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif;
    --bs-font-sans-serif: var(--app-font);
    --bs-body-font-family: var(--app-font);
}
body,
.navbar,
.navbar-brand,
.nav-link,
.dropdown-menu,
.breadcrumb,
.btn,
.form-control,
.form-select,
.modal,
.tooltip,
.popover,
#footer,
footer {
    font-family: var(--app-font);
}

/* ---------- กระดิ่งแจ้งเตือนคำสั่งที่รอยืนยันข้อมูล (header) ---------- */
.confirm-bell-btn {
    position: relative;
    font-size: 1.2rem;
    color: rgba(255, 255, 255, .85);
    padding: .25rem .6rem;
}
.confirm-bell-btn:hover,
.confirm-bell-btn:focus,
.confirm-bell-btn[aria-expanded="true"] { color: #fff; }
.confirm-bell-badge {
    position: absolute;
    top: 0;
    right: 0;
    min-width: 1.15rem;
    padding: 0 .3rem;
    border-radius: 999px;
    border: 2px solid #0f4c81;
    background: #dc3545;
    color: #fff;
    font-size: .66rem;
    font-weight: 700;
    line-height: 1rem;
    text-align: center;
}
.confirm-bell-menu {
    width: 400px;
    max-width: calc(100vw - 32px);
    padding: 0;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .18);
}
.confirm-bell-head { padding: .75rem 1rem; border-bottom: 1px solid var(--bs-border-color); background: var(--bs-tertiary-bg); }
.confirm-bell-title { font-weight: 600; }
.confirm-bell-sub { font-size: .82rem; color: var(--bs-secondary-color); }
.confirm-bell-chips { display: flex; gap: .35rem; margin-top: .35rem; }
.confirm-bell-chip { font-size: .72rem; padding: .05rem .5rem; border-radius: 999px; background: var(--bs-secondary-bg); }
.confirm-bell-list { max-height: 360px; overflow-y: auto; }
.confirm-bell-item {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .55rem 1rem;
    white-space: normal;
    border-bottom: 1px solid var(--bs-border-color-translucent);
}
.confirm-bell-icon {
    flex: none;
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
}
.confirm-bell-icon.is-pending { background: rgba(255, 193, 7, .18); color: #b7791f; }
.confirm-bell-icon.is-ok { background: rgba(25, 135, 84, .14); color: #198754; }
.confirm-bell-text { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.confirm-bell-name { font-size: .88rem; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.confirm-bell-text small { color: var(--bs-secondary-color); font-size: .75rem; }
.confirm-bell-count { flex: none; min-width: 1.8rem; padding: .1rem .45rem; border-radius: 999px; background: #dc3545; color: #fff; font-size: .75rem; font-weight: 600; text-align: center; }
.confirm-bell-empty { padding: 1.25rem 1rem; text-align: center; color: var(--bs-success-text-emphasis); }
.confirm-bell-empty.is-muted { color: var(--bs-secondary-color); }
.confirm-bell-tabs { flex-wrap: nowrap; padding: .4rem .5rem 0; gap: .15rem; background: var(--bs-tertiary-bg); }
.confirm-bell-tabs .nav-link { padding: .4rem .6rem; font-size: .8rem; white-space: nowrap; color: var(--bs-secondary-color); }
.confirm-bell-tabs .nav-link.active { color: var(--bs-body-color); font-weight: 600; }
.confirm-bell-tab-n { display: inline-block; min-width: 1.4rem; padding: 0 .35rem; border-radius: 999px; font-size: .7rem; text-align: center; background: var(--bs-secondary-bg); }
.confirm-bell-tab-n.n-pending,
.confirm-bell-tab-n.n-agencies { background: #dc3545; color: #fff; }
.confirm-bell-tab-n.n-confirmed { background: #198754; color: #fff; }
.confirm-bell-foot { display: block; padding: .6rem 1rem; text-align: center; font-size: .85rem; font-weight: 600; text-decoration: none; }
.confirm-bell-foot:hover { background: var(--bs-tertiary-bg); }