/* page-guide.css - the "About this tool / game" guide placed below an app.
 *
 * Self-contained on purpose: the tool and game pages each ship their own CSS
 * (one uses the Tailwind CDN reset), so every rule here is scoped under
 * .page-guide and sets its own colours and fonts.
 * A short intro is always visible; the detail sits in <details> panels.
 */

.page-guide {
  --pg-bg: #0A0E1A;
  --pg-card: #101828;
  --pg-card-open: #121d31;
  --pg-line: rgba(0, 212, 245, 0.18);
  --pg-line-soft: rgba(148, 163, 184, 0.16);
  --pg-text: #D5E0EE;
  --pg-muted: #9AB0C9;
  --pg-head: #FFFFFF;
  --pg-cyan: #00D4F5;
  --pg-gold: #F5A623;
  --pg-code-bg: #0B1322;

  position: relative;
  z-index: 1;
  display: block;
  background: var(--pg-bg);
  color: var(--pg-text);
  border-top: 1px solid var(--pg-line);
  padding: 48px 16px 64px;
  font-family: "Exo 2", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  text-align: left;
  -webkit-user-select: text;
  user-select: text;
}

.page-guide *,
.page-guide *::before,
.page-guide *::after { box-sizing: border-box; }

.page-guide .pg-wrap { max-width: 860px; margin: 0 auto; }

.page-guide .pg-kicker {
  margin: 0 0 6px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pg-cyan);
}

/* the guide title is an <h2>, or the page's <h1> where the app above has no heading of its own;
   section headings are <h3> under an <h2> title and <h2> under an <h1> title */
.page-guide #guide-title {
  margin: 0 0 14px;
  font-family: "Orbitron", "Exo 2", sans-serif;
  font-size: clamp(22px, 3.2vw, 30px);
  line-height: 1.25;
  font-weight: 700;
  color: var(--pg-head);
}

.page-guide h3,
.page-guide h2:not(#guide-title) {
  margin: 22px 0 8px;
  font-size: 18px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--pg-head);
}

.page-guide p { margin: 0 0 14px; }
.page-guide .pg-lede { font-size: 17px; color: var(--pg-text); }

.page-guide a { color: var(--pg-cyan); text-decoration: underline; text-underline-offset: 2px; }
.page-guide a:hover { color: #7EEEF9; }

.page-guide ul,
.page-guide ol { margin: 0 0 14px; padding-left: 22px; }
.page-guide ul { list-style: disc; }
.page-guide ol { list-style: decimal; }
.page-guide li { margin: 0 0 6px; }
.page-guide strong { color: var(--pg-head); font-weight: 700; }

.page-guide code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.9em;
  background: var(--pg-code-bg);
  border: 1px solid var(--pg-line-soft);
  border-radius: 4px;
  padding: 1px 5px;
  color: #BFEFFF;
}

.page-guide pre {
  margin: 0 0 16px;
  padding: 14px 16px;
  background: var(--pg-code-bg);
  border: 1px solid var(--pg-line-soft);
  border-radius: 8px;
  overflow-x: auto;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13.5px;
  line-height: 1.55;
  color: #D6E6F5;
  white-space: pre;
}
.page-guide pre code { background: none; border: 0; padding: 0; font-size: inherit; color: inherit; }

.page-guide table {
  width: 100%;
  margin: 0 0 16px;
  border-collapse: collapse;
  font-size: 14.5px;
  display: block;
  overflow-x: auto;
}
.page-guide th,
.page-guide td {
  padding: 8px 10px;
  border: 1px solid var(--pg-line-soft);
  text-align: left;
  vertical-align: top;
}
.page-guide th { background: #0F1A2C; color: var(--pg-head); font-weight: 700; }

.page-guide kbd {
  display: inline-block;
  min-width: 22px;
  padding: 1px 6px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12.5px;
  line-height: 1.5;
  text-align: center;
  color: var(--pg-head);
  background: #16223A;
  border: 1px solid #2D3E5C;
  border-bottom-width: 2px;
  border-radius: 4px;
}

/* the expandable panels */
.page-guide details {
  margin: 0 0 12px;
  background: var(--pg-card);
  border: 1px solid var(--pg-line-soft);
  border-radius: 10px;
  overflow: hidden;
}
.page-guide details[open] { background: var(--pg-card-open); border-color: var(--pg-line); }

.page-guide summary {
  position: relative;
  display: block;
  list-style: none;
  cursor: pointer;
  padding: 14px 48px 14px 18px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--pg-head);
}
.page-guide summary::-webkit-details-marker { display: none; }
.page-guide summary::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -7px;
  border-right: 2px solid var(--pg-cyan);
  border-bottom: 2px solid var(--pg-cyan);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}
.page-guide details[open] > summary::after { transform: rotate(225deg); margin-top: -2px; }
.page-guide summary:hover { color: var(--pg-cyan); }
.page-guide summary:focus-visible { outline: 2px solid var(--pg-cyan); outline-offset: -2px; }
.page-guide summary .pg-sub {
  display: block;
  margin-top: 2px;
  font-size: 13.5px;
  font-weight: 400;
  color: var(--pg-muted);
}

.page-guide .pg-body { padding: 4px 18px 18px; border-top: 1px solid var(--pg-line-soft); }
.page-guide .pg-body > :first-child { margin-top: 14px; }
.page-guide .pg-body > :last-child { margin-bottom: 0; }

.page-guide .pg-note {
  margin: 0 0 16px;
  padding: 12px 14px;
  border-left: 3px solid var(--pg-gold);
  background: rgba(245, 166, 35, 0.07);
  border-radius: 0 8px 8px 0;
}

.page-guide .pg-links { margin-top: 26px; font-size: 15px; color: var(--pg-muted); }

/* the small "About this tool" button page-guide.js adds to apps with no bar */
.pg-pill {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 50;
  padding: 7px 14px;
  font: 600 12.5px/1.3 "Exo 2", "Segoe UI", system-ui, sans-serif;
  color: #0A0E1A;
  background: rgba(0, 212, 245, 0.92);
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}
.pg-pill:hover { background: #7EEEF9; color: #0A0E1A; }

@media (max-width: 600px) {
  .page-guide { padding: 36px 16px 48px; font-size: 15.5px; }
  .page-guide summary { padding: 13px 42px 13px 14px; font-size: 15.5px; }
  .page-guide .pg-body { padding: 2px 14px 16px; }
}

@media print {
  .page-guide details { break-inside: avoid; }
}