/* ---------------------------------------------------------------------
   Netball Explained — base stylesheet
   No build step. Mobile nav uses <details> and works without JavaScript.
   A handful of pages (drill finder, quizzes, court explorer, tactics
   board) are progressively enhanced with small vanilla-JS files in
   assets/js/ — the underlying content works with JS off.
   --------------------------------------------------------------------- */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f3fb;
  --color-text: #201a2b;
  --color-text-muted: #5a5468;
  --color-border: #ddd7ea;
  --color-primary: #5b2a86;
  --color-primary-dark: #3f1b60;
  --color-accent: #0e8a7a;
  --color-accent-bg: #e4f5f2;
  --color-warning-bg: #fdf3e3;
  --color-warning-border: #e8c988;
  --color-link: #4a1f77;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-heading: Georgia, "Times New Roman", serif;
  --radius: 10px;
  --max-width: 72rem;
  --max-width-prose: 42rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #17131f;
    --color-bg-alt: #221c2e;
    --color-text: #ece8f2;
    --color-text-muted: #b3abc4;
    --color-border: #3a3348;
    --color-primary: #b98aec;
    --color-primary-dark: #d6b3f7;
    --color-accent: #4fd6bf;
    --color-accent-bg: #163430;
    --color-warning-bg: #3a2f18;
    --color-warning-border: #8a6a2b;
    --color-link: #c9a3f5;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

img, svg { max-width: 100%; height: auto; }

a { color: var(--color-link); }
a:hover { text-decoration-thickness: 2px; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(1.9rem, 1.5rem + 1.6vw, 2.6rem); margin: 0 0 0.5rem; }
h2 { font-size: clamp(1.4rem, 1.2rem + 1vw, 1.8rem); margin: 2rem 0 0.75rem; }
h3 { font-size: 1.2rem; margin: 1.5rem 0 0.5rem; }

p, ul, ol { margin: 0 0 1rem; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.prose {
  max-width: var(--max-width-prose);
}

.prose > * + * { margin-top: 1rem; }

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------------------------------------------------------------------
   Header / navigation
   --------------------------------------------------------------------- */
.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.site-header__brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  text-decoration: none;
}
.site-header__brand span { color: var(--color-primary); }

nav.primary-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
}
nav.primary-nav a {
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.95rem;
}
nav.primary-nav a:hover { color: var(--color-primary); }

.nav-toggle { display: none; }

@media (max-width: 860px) {
  nav.primary-nav { display: none; }
  .nav-toggle { display: block; }
  details.mobile-nav { width: 100%; }
  details.mobile-nav summary {
    list-style: none;
    cursor: pointer;
    font-weight: 600;
    padding: 0.4rem 0;
  }
  details.mobile-nav summary::-webkit-details-marker { display: none; }
  details.mobile-nav[open] summary { margin-bottom: 0.5rem; }
  details.mobile-nav ul {
    list-style: none;
    margin: 0;
    padding: 0.25rem 0 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
  }
  details.mobile-nav a { text-decoration: none; color: var(--color-text); }
}

/* ---------------------------------------------------------------------
   Breadcrumbs
   --------------------------------------------------------------------- */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 1rem 0;
}
.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
}
.breadcrumb li::after { content: "/"; margin-left: 0.35rem; color: var(--color-border); }
.breadcrumb li:last-child::after { content: ""; }
.breadcrumb a { color: var(--color-text-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-primary); text-decoration: underline; }

/* ---------------------------------------------------------------------
   Hero / page header
   --------------------------------------------------------------------- */
.page-header {
  padding: 1.5rem 0 0.5rem;
}
.page-header__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
  margin: 0.5rem 0 0;
}
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-border);
}
.badge--accent { background: var(--color-accent-bg); color: var(--color-accent); border-color: transparent; }

/* ---------------------------------------------------------------------
   Cards / grids
   --------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  margin: 1.5rem 0;
}

.card {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  text-decoration: none;
  color: var(--color-text);
  background: var(--color-bg-alt);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--color-primary); }
.card h3 { margin: 0 0 0.35rem; font-size: 1.05rem; }
.card p { margin: 0; font-size: 0.9rem; color: var(--color-text-muted); }

.card--position {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.card--position .position-code {
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-heading);
}

/* ---------------------------------------------------------------------
   Callouts: rule summary, official rule note, coaching points, mistakes
   --------------------------------------------------------------------- */
.callout {
  border: 1px solid var(--color-border);
  border-left-width: 4px;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--color-bg-alt);
}
.callout h2, .callout h3 { margin-top: 0; }

.callout--quick-answer {
  border-left-color: var(--color-primary);
}

.callout--official {
  border-left-color: var(--color-accent);
  background: var(--color-accent-bg);
  font-size: 0.92rem;
}

.callout--mistakes {
  border-left-color: var(--color-warning-border);
  background: var(--color-warning-bg);
}

.callout--coaching {
  border-left-color: var(--color-accent);
}

.fact-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.6rem 1.5rem;
}
.fact-list dt {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  margin: 0;
}
.fact-list dd {
  margin: 0.1rem 0 0;
  font-weight: 600;
}

/* ---------------------------------------------------------------------
   Court diagram
   --------------------------------------------------------------------- */
.court-diagram {
  margin: 1.5rem 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--color-bg-alt);
}
.court-diagram figcaption {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.6rem;
}
.court-diagram svg .court-outline { fill: none; stroke: var(--color-text); stroke-width: 1.5; }
.court-diagram svg .court-line { stroke: var(--color-text); stroke-width: 1; fill: none; }
.court-diagram svg .zone { fill: transparent; stroke: none; transition: fill 0.15s ease; }
.court-diagram svg .zone--active { fill: color-mix(in srgb, var(--color-primary) 30%, transparent); }
.court-diagram svg .zone-label { font-size: 8px; fill: var(--color-text-muted); font-family: var(--font-body); }

/* ---------------------------------------------------------------------
   Table of contents
   --------------------------------------------------------------------- */
.toc {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--color-bg-alt);
  font-size: 0.92rem;
}
.toc h2 { margin: 0 0 0.5rem; font-size: 1rem; font-family: var(--font-body); text-transform: uppercase; letter-spacing: 0.03em; color: var(--color-text-muted); }
.toc ol { margin: 0; padding-left: 1.1rem; }

/* ---------------------------------------------------------------------
   Related content
   --------------------------------------------------------------------- */
.related {
  margin: 2.5rem 0 1rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.25rem;
}
.related h2 { margin-top: 0; }
.related ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.related a {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.88rem;
  color: var(--color-text);
}
.related a:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ---------------------------------------------------------------------
   Hub / category pages
   --------------------------------------------------------------------- */
.section-intro { max-width: var(--max-width-prose); }
.taxonomy-group { margin: 2rem 0; }
.taxonomy-group h2 { margin-bottom: 0.25rem; }
.taxonomy-group p { color: var(--color-text-muted); margin-bottom: 0.75rem; }

/* ---------------------------------------------------------------------
   Homepage
   --------------------------------------------------------------------- */
.hero {
  padding: 2rem 0 1.5rem;
  border-bottom: 1px solid var(--color-border);
}
.hero p.tagline { font-size: 1.15rem; color: var(--color-text-muted); max-width: 40rem; }

.hero__image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 60rem;
  margin: 0 0 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.pillar-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  margin: 1.5rem 0 2.5rem;
}
.pillar-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-decoration: none;
  color: var(--color-text);
}
.pillar-card:hover { border-color: var(--color-primary); }
.pillar-card h2 { margin: 0 0 0.35rem; font-size: 1.1rem; }
.pillar-card p { margin: 0; font-size: 0.9rem; color: var(--color-text-muted); }

/* ---------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  margin-top: 3rem;
  padding: 2rem 0;
  background: var(--color-bg-alt);
  font-size: 0.88rem;
  color: var(--color-text-muted);
}
.site-footer__links {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.1rem;
}
.site-footer__links a { color: var(--color-text-muted); }
.site-footer__note { max-width: var(--max-width-prose); }

main { min-height: 40vh; padding-bottom: 2rem; }

/* ---------------------------------------------------------------------
   Interactive features — drill finder, quizzes, court explorer, board
   --------------------------------------------------------------------- */

/* Drill finder */
.drill-finder { margin: 1.5rem 0; }
.drill-finder__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.25rem;
  align-items: end;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
}
.drill-finder__field { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.85rem; }
.drill-finder__field label { font-weight: 600; }
.drill-finder__field input[type="number"],
.drill-finder__field select {
  font: inherit;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
  min-width: 8rem;
}
.drill-finder__field--checkbox { flex-direction: row; align-items: center; gap: 0.4rem; }
.drill-finder__field--checkbox label { display: flex; align-items: center; gap: 0.4rem; font-weight: 400; }
.drill-finder__reset {
  font: inherit;
  font-weight: 600;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
}
.drill-finder__reset:hover { border-color: var(--color-primary); color: var(--color-primary); }
.drill-finder__count { font-size: 0.85rem; color: var(--color-text-muted); margin: 0.9rem 0 0; }
.drill-finder__empty {
  padding: 1.5rem;
  text-align: center;
  color: var(--color-text-muted);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
}
.drill-card__meta { margin-top: 0.5rem !important; font-size: 0.78rem !important; color: var(--color-text-muted); }
/* No-JS fallback: hide controls that do nothing without JS */
.drill-finder:not([data-js-ready]) .drill-finder__controls,
.drill-finder:not([data-js-ready]) .drill-finder__count { display: none; }

/* Quiz (legal-or-illegal, position finder) */
.quiz {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
  background: var(--color-bg-alt);
  max-width: var(--max-width-prose);
}
.quiz__progress { font-size: 0.8rem; color: var(--color-text-muted); margin: 0 0 0.5rem; }
.quiz__scenario { font-size: 1.1rem; margin: 0 0 1.25rem; }
.quiz__choices { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.quiz__choice {
  font: inherit;
  font-weight: 600;
  padding: 0.7rem 1.5rem;
  border: 2px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
}
.quiz__choice:hover:not(:disabled) { border-color: var(--color-primary); }
.quiz__choice[aria-pressed="true"] { border-color: var(--color-primary); background: var(--color-primary); color: #fff; }
.quiz__choice:disabled { opacity: 0.55; cursor: not-allowed; }
.quiz__choice[aria-pressed="true"]:disabled { opacity: 1; }
.quiz__feedback { margin-top: 1.25rem; padding-top: 1.25rem; border-top: 1px solid var(--color-border); }
.quiz__feedback[hidden] { display: none; }
.quiz__verdict { font-weight: 700; margin: 0 0 0.5rem; }
.quiz__verdict--correct { color: var(--color-accent); }
.quiz__verdict--incorrect { color: #b3453a; }
@media (prefers-color-scheme: dark) { .quiz__verdict--incorrect { color: #ef8478; } }
.quiz__next {
  font: inherit;
  font-weight: 600;
  margin-top: 1rem;
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  cursor: pointer;
}
.quiz__score { font-size: 0.9rem; color: var(--color-text-muted); margin-top: 1rem; }
.quiz__result-card {
  display: block;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  text-decoration: none;
  color: var(--color-text);
  margin-top: 0.75rem;
}
.quiz__result-card h3 { margin: 0 0 0.35rem; }
.quiz:not([data-js-ready]) .quiz__interactive { display: none; }
.quiz__nojs-note { font-size: 0.85rem; color: var(--color-text-muted); }
.quiz[data-js-ready] .quiz__nojs-note { display: none; }

/* Court explorer */
.court-explorer { position: relative; }
.court-explorer svg .explorer-marker { cursor: pointer; }
.court-explorer svg .explorer-marker circle { transition: r 0.12s ease; }
.court-explorer svg .explorer-marker:hover circle,
.court-explorer svg .explorer-marker:focus circle { r: 11; }
.court-explorer svg .explorer-marker text { pointer-events: none; }
.court-explorer__tooltip {
  position: absolute;
  z-index: 10;
  width: max-content;
  max-width: 20rem;
  padding: 0.65rem 0.85rem;
  background: var(--color-text);
  color: var(--color-bg);
  border-radius: 8px;
  font-size: 0.85rem;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, -100%);
  transition: opacity 0.1s ease;
}
.court-explorer__tooltip[data-visible="true"] { opacity: 1; }
.court-explorer__tooltip strong { display: block; margin-bottom: 0.15rem; }

/* Tactics board */
.tactics-board__toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--color-bg-alt);
  border-bottom: none;
}
.tactics-board__btn {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
}
.tactics-board__btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.tactics-board__btn[aria-pressed="true"] { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.tactics-board__btn--danger:hover { border-color: #b3453a; color: #b3453a; }
.tactics-board__canvas-wrap {
  border: 1px solid var(--color-border);
  border-radius: 0 0 var(--radius) var(--radius);
  overflow: hidden;
  background: var(--color-bg-alt);
}
.tactics-board__canvas-wrap svg { display: block; width: 100%; height: auto; touch-action: none; }
.tactics-board__canvas-wrap svg .court-outline { fill: none; stroke: var(--color-text); stroke-width: 1.5; }
.tactics-board__canvas-wrap svg .court-line { stroke: var(--color-text); stroke-width: 1; fill: none; }
.tactics-board__canvas-wrap svg .board-player { cursor: grab; }
.tactics-board__canvas-wrap svg .board-player:active { cursor: grabbing; }
.tactics-board__canvas-wrap svg .board-player circle { fill: var(--color-primary); stroke: #fff; stroke-width: 1.5; }
.tactics-board__canvas-wrap svg .board-player.is-ball circle { fill: #e8a33d; }
.tactics-board__canvas-wrap svg .board-player text { fill: #fff; font-size: 9px; font-weight: 700; text-anchor: middle; pointer-events: none; }
.tactics-board__canvas-wrap svg .board-arrow { stroke: var(--color-accent); stroke-width: 2; fill: none; color: var(--color-accent); }
.tactics-board__hint { font-size: 0.85rem; color: var(--color-text-muted); margin-top: 0.75rem; }
.tactics-board:not([data-js-ready]) .tactics-board__toolbar,
.tactics-board:not([data-js-ready]) .tactics-board__canvas-wrap { display: none; }