/* ==========================================================================
   Academic Calendar  —  loaded only by templates/pages/academic_calendar.html

   Everything here styles the two semester tables and the notes below them.
   The banner and the heading-with-rule come from page-head.css, the header,
   navigation and footer from main.css.
   ========================================================================== */

/* --------------------------------------------------------- semester ------ */
.cal-block { margin-bottom: 42px; }
.cal-block:last-child { margin-bottom: 0; }

/* The strip above each table: "ODD SEMESTER EXAMINATIONS, 2026". */
.cal-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 12px 18px;
  background: var(--dark);
  color: #fff;
  border-radius: var(--radius) var(--radius) 0 0;
}
.cal-block__title {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 18px);
  font-weight: 800;
  letter-spacing: .4px;
  text-transform: uppercase;
  color: #fff;
}
.cal-block__note { font-size: .78rem; color: rgba(255, 255, 255, .75); }

/* ----------------------------------------------------------- table ------- */
/* Wrapper scrolls on small screens instead of stretching the page. */
.cal-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: #fff;
  box-shadow: var(--shadow-sm);
  border-radius: 0 0 var(--radius) var(--radius);
}

.cal-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: .88rem;
}
.cal-table th,
.cal-table td {
  border: 1px solid var(--line);
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
}
/* First column: the label ("1st Internal Examinations"). */
.cal-table th[scope="row"] {
  width: 38%;
  font-weight: 700;
  color: var(--ink);
  background: var(--page-alt);
}
.cal-table tbody tr:hover td { background: #fffdf5; }

/* One date line inside a cell.  Several may stack in the same cell — that is
   how a row like "Commencement of Classes" carries both the UG and PG date. */
.cal-date { margin: 0; }
.cal-date + .cal-date { margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--line); }
/* The "(all PG programmes)" half of a line. */
.cal-date span { color: var(--muted); }

/* Highlights a row that has already passed or needs attention — add
   class="is-past" to a <tr>. */
.cal-table tr.is-past th[scope="row"],
.cal-table tr.is-past td { opacity: .62; }

/* ----------------------------------------------------------- notes ------- */
.cal-notes {
  margin-top: 26px;
  padding: 18px 20px;
  background: var(--page-alt);
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.cal-notes ul { margin: 0; padding-left: 1.1em; }
.cal-notes li { font-size: .86rem; color: var(--ink-soft); }
.cal-notes li + li { margin-top: 10px; }

/* ------------------------------------------------------- responsive ----- */
/* Below 768px a two-column table cannot hold its 620px floor, so the row
   stacks instead: the label becomes a small caption above its dates and
   nothing scrolls sideways.  Same treatment .meta-list gets in main.css. */
@media (max-width: 767.98px) {
  .cal-scroll { overflow-x: visible; }
  .cal-table { min-width: 0; font-size: .84rem; }
  .cal-table, .cal-table tbody, .cal-table tr,
  .cal-table th, .cal-table td { display: block; }

  .cal-table tr { border-bottom: 1px solid var(--line); }
  .cal-table tr:last-child { border-bottom: 0; }

  .cal-table th[scope="row"],
  .cal-table td { width: auto; border: 0; padding: 0 14px; }

  .cal-table th[scope="row"] {
    padding-top: 14px;
    padding-bottom: 5px;
    background: transparent;
    color: var(--accent);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .05em;
    text-transform: uppercase;
  }
  /* The "(for Odd Semester Examination, 2026)" half of a label. */
  .cal-table th[scope="row"] span { text-transform: none; letter-spacing: 0; }

  .cal-table td { padding-bottom: 14px; }
  .cal-table tbody tr:hover td { background: transparent; }

  .cal-block__head { border-radius: var(--radius) var(--radius) 0 0; }
}

@media (max-width: 575.98px) {
  .cal-block { margin-bottom: 30px; }
  .cal-notes { padding: 15px 16px; }
}

/* ----------------------------------------------------------- print ------ */
/* A calendar gets printed and pinned to a noticeboard, so keep the grid and
   stop a semester from splitting across two sheets. */
@media print {
  .page-banner { min-height: 0; padding: 0; background: none !important; }
  .page-banner__title { color: #000; text-shadow: none; font-size: 18pt; }

  .cal-block { margin-bottom: 22px; break-inside: avoid; page-break-inside: avoid; }
  .cal-scroll { overflow: visible; box-shadow: none; }
  .cal-block__head { background: none; color: #000; padding: 8px 0; }
  .cal-block__title { color: #000; }
  .cal-block__note { color: #444; }

  .cal-table { min-width: 0; font-size: 10pt; }
  .cal-table th, .cal-table td { border: 1px solid #999; padding: 6px 8px; }
  .cal-table th[scope="row"] { background: none; }
  .cal-table tr.is-past th[scope="row"],
  .cal-table tr.is-past td { opacity: 1; }
  .cal-date span { color: #444; }

  .cal-notes { border-left: 2px solid #999; background: none; }
}