/* Course design map for Security and Privacy Essentials.
   Shell (top bar, type, colours, .btn, footer) comes from assets/shell.css;
   this file holds only what the design map adds on top of it. */

/* shell.css leaves room for the home page's floor plan; this page has none. */
body { padding-bottom: 0; }

/* Sections run full width; their content sits in one centred column. */
.map-intro, .part-in { max-width: 1180px; margin-left: auto; margin-right: auto; box-sizing: content-box; }

/* ---------- Intro ---------- */
.map-intro { padding: clamp(32px, 5vw, 64px) var(--gutter) clamp(28px, 4vw, 48px); }
.map-intro h1 { font-size: clamp(32px, 4.2vw, 56px); max-width: 20ch; margin-bottom: 28px; }
.map-intro-row {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr);
  gap: 32px;
  align-items: start;
}
.lede { font-size: 19px; line-height: 1.6; max-width: 62ch; }
.play-card {
  background: var(--sun-400);
  border: var(--line);
  border-radius: 6px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
  box-shadow: 0 18px 40px -26px rgba(13, 21, 13, .45);
}
.play-card p { font-size: 17px; line-height: 1.5; }
.play-card .btn, .play-row .btn { font-size: 17px; padding: 14px 22px; }
.about {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 2px solid var(--ink-900);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-700);
  max-width: 78ch;
}

/* ---------- Parts of the design ---------- */
.part { padding: clamp(40px, 5vw, 72px) var(--gutter); border-top: var(--line); }
.part--tint { background: var(--ink-50); }
.part--sun { background: var(--green-50); }
.part-in > h2 { font-size: clamp(26px, 2.8vw, 40px); margin-bottom: 20px; max-width: 26ch; }
.part-in > h3 { font-size: 22px; margin: 32px 0 12px; }
.part-in > p, .part-in > ul { font-size: 17px; line-height: 1.65; max-width: 74ch; }
.part-in > p + p { margin-top: 14px; }
.part-in > ul { padding-left: 22px; margin: 16px 0; }
.part-in li { margin-bottom: 10px; }
.part-in strong { font-weight: 800; }

.play-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin: 24px 0 8px; }
.play-row span { font-size: 16px; color: var(--ink-500); max-width: 40ch; }

/* ---------- Tables ---------- */
.tbl-wrap { margin: 24px 0; border: 2px solid var(--ink-900); border-radius: 6px; overflow-x: auto; background: var(--paper); }
table.grid { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.5; }
table.grid th {
  text-align: left;
  font: 800 15px/1.3 var(--body);
  background: var(--ink-900);
  color: var(--paper);
  padding: 12px 14px;
  vertical-align: bottom;
}
table.grid td { padding: 12px 14px; border-top: 1px solid var(--ink-200); vertical-align: top; color: var(--ink-700); }
table.grid td.u { font-family: var(--display); font-stretch: 105%; font-weight: 800; color: var(--ink-900); }
table.grid tr.built td { background: #fff4bf; }

/* Phones: each row becomes a card with its column names inline, so the page never scrolls sideways. */
@media (max-width: 760px) {
  .map-intro-row { grid-template-columns: 1fr; gap: 20px; }
  .play-card { order: -1; }   /* the way into Unit 1 stays on the first screen */
  .lede { font-size: 17px; }
  .tbl-wrap { border: 0; background: none; overflow: visible; }
  table.grid, table.grid tbody, table.grid tr, table.grid td { display: block; width: 100%; }
  table.grid thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  table.grid tr { border-top: var(--line); padding: 6px 0 14px; }
  table.grid td { padding: 6px 0; font-size: 16px; border-top: 0; }
  /* label in a left column; the cell keeps its inline text flow */
  table.grid td:not(.u) { position: relative; padding-left: 36%; }
  table.grid td.u { font-size: 18px; padding-top: 10px; }
  table.grid tr.built td { background: none; }
  table.grid tr.built td.u { background: var(--sun-400); padding-left: 10px; }
  table.grid td:not(.u)::before { content: attr(data-label); position: absolute; left: 0; top: 7px; width: calc(36% - 12px); font-weight: 800; color: var(--ink-900); font-size: 14px; line-height: 1.4; }
  .play-card .btn, .play-row .btn { width: 100%; justify-content: center; }
}

@media print {
  .top, .play-card .btn, .play-row .btn { display: none; }
  .part { break-inside: avoid; }
}