/* =========================================
   Undergrad Programme Page Template
   (page-university-undergrad-programme.php)
   ========================================= */

/* --- Tab bar --------------------------------------------------- */
.tp-programme-tabs {
    margin-bottom: 45px;
    border-bottom: 1px solid rgba(22, 22, 19, 0.1);
}

.tp-programme-tabs .nav-tabs {
    border: 0;
    gap: 4px 8px;
    flex-wrap: wrap;
}

.tp-programme-tabs .nav-item {
    margin-bottom: -1px;
}

.tp-programme-tabs .nav-link {
    border: 0;
    border-bottom: 3px solid transparent;
    border-radius: 0;
    background: transparent;
    padding: 12px 18px;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--tp-heading-primary, #161613);
    transition: color 0.2s ease, border-color 0.2s ease;
}

.tp-programme-tabs .nav-link:hover,
.tp-programme-tabs .nav-link:focus {
    color: var(--tp-theme-primary, #488ecc);
}

.tp-programme-tabs .nav-link.active {
    color: var(--tp-theme-secondary, #1a73e8);
    background: transparent;
    border-bottom-color: var(--tp-theme-secondary, #1a73e8);
}

/* --- Section title (shared by tab panels) --------------------- */
/* Smaller than the default h2, in the theme blue. Used on the
   Μαθήματα and Κανονισμός tabs. */
.tp-programme-section-title {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 18px;
    color: var(--tp-theme-primary, #488ecc);
}

/* --- Intro / rich-text panel (Tab 1, Tab 3 intro) ------------- */
.tp-programme-intro {
    font-size: 16px;
    line-height: 1.8;
    color: #3e3e3a;
}

.tp-programme-intro p {
    margin-bottom: 18px;
}

.tp-programme-intro h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 18px;
}

.tp-programme-pdf-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--tp-theme-primary, #488ecc);
}

.tp-programme-pdf-link:hover {
    color: var(--tp-theme-secondary, #1a73e8);
    text-decoration: underline;
}

/* "open in new tab" icon — inherits link colour, sits flush with text */
.tp-programme-extlink-icon {
    flex: 0 0 auto;
    width: 14px;
    height: 14px;
    vertical-align: -1px;
}

/* --- Semester accordions (Tab 2) ------------------------------ */
.tp-programme-accordion .accordion-item {
    border: 1px solid rgba(22, 22, 19, 0.1);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 16px;
}

.tp-programme-accordion .accordion-button {
    font-size: 18px;
    font-weight: 600;
    color: var(--tp-heading-primary, #161613);
    background: var(--tp-blue-1, #f1f3f9);
    box-shadow: none;
}

.tp-programme-accordion .accordion-button:not(.collapsed) {
    color: var(--tp-theme-primary, #488ecc);
    background: #e3eefb;
    box-shadow: none;
}

.tp-programme-accordion .accordion-body {
    padding: 24px 28px;
}

/* --- Course / prerequisite tables ----------------------------- */
/* Reuses the base .tp-tution-table markup, but with flexible
   columns instead of the tuition layout's fixed 410/410/80 px. */
.tp-programme-table .tp-course-table-row {
    gap: 16px;
}

.tp-programme-table .tp-tution-id,
.tp-programme-table .tp-tution-sub,
.tp-programme-table .tp-tution-type {
    width: auto;
}

.tp-programme-table .tp-tution-inner,
.tp-programme-table .tp-tution-table-title {
    font-size: 16px;
}

/* Courses: code (narrow) | name (grow) | syllabus PDF (fixed) */
.tp-programme-table.is-courses .tp-tution-id {
    flex: 0 0 110px;
}

.tp-programme-table.is-courses .tp-tution-sub {
    flex: 1 1 auto;
}

.tp-programme-table.is-courses .tp-tution-type {
    flex: 0 0 210px;
    text-align: center;
}

/* Prerequisites: A/A (narrow) | prerequisite (grow) | chain (grow) */
.tp-programme-table.is-prereq .tp-tution-id {
    flex: 0 0 64px;
}

.tp-programme-table.is-prereq .tp-tution-sub,
.tp-programme-table.is-prereq .tp-tution-type {
    flex: 1 1 50%;
}


/* Course/prereq table header: override the base pink (.tp-tution-table-head) with the theme tint.
   box-shadow matches the .accordion-button.collapsed visual contrast (inset bottom separator). */
.tp-programme-table .tp-tution-table-head {
    background: var(--tp-blue-1, #f1f3f9);
    box-shadow: inset 0 -1px 0 rgba(22, 22, 19, 0.1);
}

.tp-programme-pdf-cell {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--tp-theme-primary, #488ecc);
}

.tp-programme-pdf-cell:hover {
    color: var(--tp-theme-secondary, #1a73e8);
    text-decoration: underline;
}

/* Larger, clearly tappable syllabus icon (overrides the 14px inline default). */
.tp-programme-pdf-cell .tp-programme-extlink-icon {
    width: 22px;
    height: 22px;
    vertical-align: middle;
}

/* Mandatory-lab list under the prerequisites table */
.tp-programme-lab {
    margin-top: 40px;
}

.tp-programme-lab-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.tp-programme-lab ul {
    margin: 0;
    padding-left: 20px;
}

.tp-programme-lab ul li {
    margin-bottom: 8px;
    color: #3e3e3a;
}

/* --- Sidebar: undergrad section navigation widget ------------- */
/* Lives in template-parts/sidebar-undergrad.php; styled here (loads on this
   template). Reuses the base .tp-course-requrement-widget-content shell. */
.tp-undergrad-nav-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--tp-heading-primary, #161613);
}

.tp-undergrad-nav .tp-course-requrement-widget-content a:hover,
.tp-undergrad-files .tp-course-requrement-widget-content a:hover {
    color: var(--tp-theme-primary, #488ecc);
}

.tp-undergrad-nav .tp-course-requrement-widget-content .current-page,
.tp-undergrad-nav .tp-course-requrement-widget-content .is-disabled {
    display: block;
    font-size: 17px;
    font-weight: 400;
}

.tp-undergrad-nav .tp-course-requrement-widget-content .current-page:not(:last-of-type),
.tp-undergrad-nav .tp-course-requrement-widget-content .is-disabled:not(:last-of-type) {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px dashed rgba(22, 22, 19, 0.2);
}

/* Current page: highlighted, still a clickable link */
.tp-undergrad-nav .tp-course-requrement-widget-content a.current-page,
.tp-undergrad-nav .tp-course-requrement-widget-content a.current-page:hover {
    font-weight: 700;
    color: var(--tp-theme-secondary, #1a73e8);
}

/* Pages not yet created: muted, non-interactive */
.tp-undergrad-nav .tp-course-requrement-widget-content .is-disabled {
    color: rgba(87, 89, 95, 0.45);
    cursor: default;
}

/* --- Responsive: let wide tables scroll on small screens ------ */
@media only screen and (max-width: 991px) {
    .tp-programme-table {
        overflow-x: auto;
    }

    .tp-programme-table ul li {
        min-width: 640px;
    }

    .tp-programme-tabs {
        margin-bottom: 30px;
    }

    .tp-programme-tabs .nav-tabs {
        flex-wrap: wrap;
        justify-content: center;
        gap: 2px 6px;
    }

    .tp-programme-tabs .nav-item {
        flex: 0 0 auto;
    }

    .tp-programme-tabs .nav-link {
        padding: 10px 10px;
        font-size: 14px;
        white-space: nowrap;
    }
}

/* --- Sticky in-page tab bar (small screens only) -------------- */
@media only screen and (max-width: 570px) {
    /* Sits BELOW the site's own sticky header (`.tp-header-sticky` is
       position:fixed, top:0, z-index:99), so we offset by its height and keep a
       lower z-index — the two stack, header on top. Tabs sit on a translucent
       white bar. If the header height differs on a device, tune `top`. */
    .tp-programme-tabs {
        position: sticky;
        top: 78px;
        z-index: 98;
        margin-left: -12px;
        margin-right: -12px;
        padding: 8px 12px 0;
        background: rgba(255, 255, 255, 0.85);
        -webkit-backdrop-filter: blur(6px);
        backdrop-filter: blur(6px);
    }
}