/* ===== PGTA App — UCL Brand Theme ===== */

:root {
    --ucl-purple: #500778;
    --ucl-purple-hover: #3C0B5B;
    --ucl-purple-light: #8448A6;
    --ucl-purple-faint: #F3EDF6;
    --ucl-accent: #AC1E8E;
    --ucl-bg: #F8F9FA;
    --ucl-white: #FFFFFF;
    --ucl-text: #212529;
    --ucl-muted: #6c757d;
}

/* ---- Global ---- */
body {
    background-color: var(--ucl-bg);
    color: var(--ucl-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--ucl-purple);
}

a:hover {
    color: var(--ucl-purple-hover);
}

/* ---- Navbar ---- */
.navbar-ucl {
    background-color: var(--ucl-white) !important;
    border-bottom: 3px solid var(--ucl-purple);
}

.navbar-ucl .navbar-brand {
    padding: 0.5rem 0;
}

.navbar-logo {
    height: 40px;
    width: auto;
}

.navbar-ucl .nav-link {
    color: var(--ucl-purple) !important;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.75rem 1rem !important;
    transition: color 0.15s, background-color 0.15s;
}

.navbar-ucl .nav-link:hover,
.navbar-ucl .nav-link:focus {
    color: var(--ucl-purple-hover) !important;
    background-color: var(--ucl-purple-faint);
}

.navbar-ucl .dropdown-menu {
    border: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-radius: 0.5rem;
}

.navbar-ucl .dropdown-item:hover {
    background-color: var(--ucl-purple);
    color: var(--ucl-white);
}

.navbar-ucl .navbar-toggler {
    border-color: var(--ucl-purple);
}

.navbar-ucl .navbar-toggler-icon {
    filter: brightness(0) saturate(100%) invert(10%) sepia(60%) saturate(5000%) hue-rotate(270deg) brightness(80%);
}

/* ---- Page Header ---- */
.page-header {
    background: linear-gradient(135deg, var(--ucl-purple), var(--ucl-purple-hover));
    color: var(--ucl-white);
    padding: 2rem 0;
    margin-bottom: 1.5rem;
}

.page-header h1 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.page-header .lead {
    opacity: 0.85;
}

/* ---- Cards ---- */
.card {
    border: none;
    border-left: 4px solid var(--ucl-purple);
    border-radius: 0.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: var(--ucl-purple);
    color: var(--ucl-white);
    border-radius: 0.5rem 0.5rem 0 0 !important;
    font-weight: 600;
}

/* Clickable nav cards on home page */
.nav-card {
    cursor: pointer;
    border-left: 4px solid var(--ucl-purple);
    transition: transform 0.15s, box-shadow 0.2s;
}

.nav-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(80, 7, 120, 0.18);
}

.nav-card .card-icon {
    font-size: 2.5rem;
    color: var(--ucl-purple);
    margin-bottom: 0.75rem;
}

/* ---- Status Badges ---- */
.badge-applied {
    background-color: #0d6efd;
    color: #fff;
}

.badge-to-hire {
    background-color: #198754;
    color: #fff;
}

.badge-declined {
    background-color: #6c757d;
    color: #fff;
}

.badge-withdrawn {
    background-color: #dc3545;
    color: #fff;
}

.badge-draft {
    background-color: #ffc107;
    color: #212529;
}

.badge-hr-requested {
    background-color: #0dcaf0;
    color: #212529;
}

.badge-hr-complete {
    background-color: #20c997;
    color: #fff;
}

.badge-submitted {
    background-color: #6f42c1;
    color: #fff;
}

/* ---- Buttons — UCL overrides ---- */
.btn-ucl {
    background-color: var(--ucl-purple);
    border-color: var(--ucl-purple);
    color: var(--ucl-white);
}

.btn-ucl-light {
    background-color: var(--ucl-purple-light);
    border-color: var(--ucl-purple-light);
    color: var(--ucl-white);
}

.btn-ucl:hover,
.btn-ucl:focus {
    background-color: var(--ucl-purple-hover);
    border-color: var(--ucl-purple-hover);
    color: var(--ucl-white);
}

.btn-outline-ucl {
    color: var(--ucl-purple);
    border-color: var(--ucl-purple);
}

.btn-outline-ucl:hover,
.btn-outline-ucl:focus {
    background-color: var(--ucl-purple);
    color: var(--ucl-white);
}

/* ---- Tables ---- */
.table thead th {
    background-color: var(--ucl-purple);
    color: var(--ucl-white);
    font-weight: 600;
    border: none;
}

/* ---- Footer ---- */
footer {
    background-color: var(--ucl-purple) !important;
    color: rgba(255, 255, 255, 0.8) !important;
}

footer p {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* ---- Flash messages ---- */
.alert {
    border-radius: 0.5rem;
}

/* ---- Tab Pills — UCL style ---- */
.nav-pills-ucl {
    border-bottom: 2px solid #dee2e6;
    gap: 0;
}

.nav-pills-ucl .nav-link {
    color: var(--ucl-muted);
    border-radius: 0;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    padding: 0.6rem 1.25rem;
    font-weight: 500;
    transition: color 0.15s, border-color 0.15s;
}

.nav-pills-ucl .nav-link:hover {
    color: var(--ucl-purple);
    border-bottom-color: var(--ucl-purple-light);
}

.nav-pills-ucl .nav-link.active {
    color: var(--ucl-purple);
    background: none;
    border-bottom-color: var(--ucl-purple);
    font-weight: 600;
}

/* ---- UCL Accordion (purple theme) ---- */
.accordion-ucl .accordion-item {
    border: none;
    border-left: 4px solid var(--ucl-purple-light);
    margin-bottom: 0.5rem;
    border-radius: 0.5rem;
    overflow: hidden;
    background-color: var(--ucl-purple-faint);
}

.accordion-ucl .accordion-button {
    background-color: var(--ucl-purple-faint);
    color: var(--ucl-purple);
    font-weight: 600;
    box-shadow: none;
}

.accordion-ucl .accordion-button:not(.collapsed) {
    background-color: var(--ucl-purple-faint);
    color: var(--ucl-purple-hover);
}

.accordion-ucl .accordion-button::after {
    filter: brightness(0) saturate(100%) invert(10%) sepia(60%) saturate(5000%) hue-rotate(270deg) brightness(80%);
}

.accordion-ucl .accordion-body {
    background-color: var(--ucl-white);
    border-top: 1px solid rgba(132, 72, 166, 0.15);
}

.accordion-ucl .accordion-body a {
    color: var(--ucl-purple);
}

.accordion-ucl .accordion-body a:hover {
    color: var(--ucl-accent);
}

/* ---- Purple Badge Variants ---- */
.bg-purple-light {
    background-color: var(--ucl-purple-light) !important;
    color: #fff !important;
}

.bg-purple-accent {
    background-color: var(--ucl-accent) !important;
    color: #fff !important;
}

/* ---- DataTable Theme Overrides ---- */
table.dataTable thead th {
    background-color: var(--ucl-purple) !important;
    color: var(--ucl-white) !important;
    font-weight: 600;
    border-bottom: none !important;
}

table.dataTable tbody tr:hover {
    background-color: var(--ucl-purple-faint) !important;
}

table.dataTable tbody tr.shown {
    background-color: var(--ucl-purple-faint) !important;
}

/* DataTable expand/collapse control */
td.dt-control {
    cursor: pointer;
    text-align: center;
}

/* Hide DataTables' default triangle indicator */
td.dt-control::before {
    display: none !important;
}

td.dt-control .dt-control-icon {
    color: var(--ucl-purple);
    transition: transform 0.25s;
    font-size: 0.85rem;
    display: inline-block;
}

tr.shown td.dt-control .dt-control-icon {
    transform: rotate(90deg);
}

/* DataTable search box — UCL purple style */
.dataTables_filter {
    position: relative;
}

.dataTables_filter label {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.dataTables_filter input {
    background-color: var(--ucl-purple) !important;
    color: var(--ucl-white) !important;
    border: none !important;
    border-radius: 0 !important;
    padding: 0.5rem 2.5rem 0.5rem 1rem !important;
    min-width: 250px;
    font-size: 0.9rem;
    transition: background-color 0.15s;
}

.dataTables_filter input::placeholder {
    color: rgba(255, 255, 255, 0.7) !important;
}

.dataTables_filter input:focus {
    background-color: var(--ucl-purple-hover) !important;
    box-shadow: none !important;
    outline: 2px solid var(--ucl-purple-light) !important;
    outline-offset: 1px;
}

/* Hide the default DataTables "Search:" label text */
.dataTables_filter label > span,
.dataTables_filter label > i {
    color: var(--ucl-white);
}

/* ---- Vacancy Detail Card (expanded row) ---- */
.vacancy-detail-card {
    background: var(--ucl-white);
    border-left: 4px solid var(--ucl-purple-light);
    border-radius: 0 0.5rem 0.5rem 0;
    padding: 1.25rem;
    margin: 0.5rem 0 0.5rem 1rem;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.vacancy-ad-text {
    line-height: 1.7;
    color: var(--ucl-text);
}

.vacancy-links a {
    color: var(--ucl-purple);
    font-weight: 500;
    text-decoration: none;
}

.vacancy-links a:hover {
    color: var(--ucl-accent);
    text-decoration: underline;
}

/* ---- Vacancy Detail Page ---- */
.vacancy-info-sidebar {
    position: sticky;
    top: 1rem;
}

.vacancy-info-card .card-header {
    background-color: var(--ucl-purple);
    color: var(--ucl-white);
    font-weight: 600;
}

.vacancy-section-title {
    color: var(--ucl-purple);
    font-weight: 600;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--ucl-purple-faint);
}

/* Breadcrumb — white text on purple header */
.breadcrumb-ucl {
    font-size: 0.85rem;
}

.breadcrumb-ucl .breadcrumb-item a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
}

.breadcrumb-ucl .breadcrumb-item a:hover {
    color: var(--ucl-white);
}

.breadcrumb-ucl .breadcrumb-item.active {
    color: rgba(255, 255, 255, 0.6);
}

.breadcrumb-ucl .breadcrumb-item + .breadcrumb-item::before {
    color: rgba(255, 255, 255, 0.5);
}

/* Term cards grid */
.term-card {
    text-align: center;
    padding: 0.75rem 0.5rem;
    border-radius: 0.5rem;
    background-color: var(--ucl-bg);
    border: 1px solid #dee2e6;
    transition: all 0.15s;
}

.term-card.active {
    background-color: var(--ucl-purple-faint);
    border-color: var(--ucl-purple-light);
}

.term-card .term-icon {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    color: var(--ucl-muted);
}

.term-card.active .term-icon {
    color: var(--ucl-purple);
}

.term-card .term-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ucl-muted);
}

.term-card.active .term-label {
    color: var(--ucl-purple);
}

/* ---- Hero Welcome (home page) ---- */
.hero-welcome {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--ucl-purple) 0%, var(--ucl-purple-hover) 50%, #2A0440 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 2rem;
}

.hero-icon-bg {
    font-size: 6rem;
    color: rgba(255, 255, 255, 0.08);
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--ucl-white);
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 300;
    letter-spacing: 0.05em;
}

.hero-cta {
    display: inline-block;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ucl-white);
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: 50px;
    padding: 0.75rem 2.5rem;
    background: transparent;
    transition: background-color 0.25s, border-color 0.25s, transform 0.15s;
}

.hero-cta:hover,
.hero-cta:focus {
    background-color: var(--ucl-white);
    color: var(--ucl-purple);
    border-color: var(--ucl-white);
    transform: translateY(-2px);
    text-decoration: none;
}

/* ---- Responsive helpers ---- */
@media (max-width: 768px) {
    .navbar-logo {
        height: 26px;
    }

    .page-header {
        padding: 1.25rem 0;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .nav-pills-ucl .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }

    .vacancy-detail-card {
        margin-left: 0;
    }

    .dataTables_filter input {
        min-width: 180px !important;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-icon-bg {
        font-size: 4rem;
    }
}