.coordinate-drawing-page [hidden] { display: none !important; }
.coordinate-drawing-page .exercise-header { flex-wrap: wrap; padding: 16px 0; }
.coordinate-drawing-page .exercise-nav { flex-wrap: wrap; }
.coordinate-drawing-page .exercise-nav a { width: auto; flex: 0 0 auto; padding: 0 15px; }
.coordinate-drawing-page .exercise-main { padding-top: 26px; }
.coordinate-drawing-page .exercise-intro { grid-template-columns: 1fr; gap: 0; margin-bottom: 28px; padding-bottom: 18px; border-bottom: 1px solid var(--st-line); }
.coordinate-drawing-page .intro-copy { max-width: 1040px; }
.coordinate-drawing-page .intro-copy h1 { max-width: none; margin: 0 0 8px; font-family: inherit; font-size: clamp(20px, 2vw, 26px); font-weight: 650; letter-spacing: -0.02em; line-height: 1.35; }
.coordinate-drawing-page .intro-copy p { max-width: none; font-size: 13px; line-height: 1.65; }
.cd-library-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin: 0 0 20px; }
.cd-library-heading h2 { margin: 0; font-size: clamp(23px, 3vw, 32px); }
.cd-library-heading > span { color: var(--st-mint); font-size: 13px; }
.cd-categories { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.cd-category { position: relative; display: grid; justify-items: start; gap: 10px; min-width: 0; padding: 24px; border: 1px solid var(--st-line); border-radius: 22px; color: var(--st-paper); background: linear-gradient(145deg, rgba(255,255,255,.07), rgba(255,255,255,.015)); text-align: left; cursor: pointer; transition: border-color .15s, transform .15s; }
.cd-category:hover { border-color: var(--category-color); transform: translateY(-3px); }
.cd-category[aria-pressed="true"] { border-color: var(--category-color); background: #19372a; }
.cd-category-icon { display: grid; place-items: center; width: 66px; height: 66px; margin: 8px 0; border-radius: 20px; background: var(--category-color); font-size: 37px; }
.cd-category strong { font-size: 21px; line-height: 1.4; overflow-wrap: anywhere; }
.cd-category small { color: var(--st-muted); font-size: 12px; line-height: 1.6; }
.cd-premium-badge { justify-self: end; position: absolute; top: 16px; right: 16px; color: var(--category-color); font-size: 10px; font-weight: 750; }
.cd-category progress { width: 100%; height: 5px; margin-top: 10px; accent-color: var(--category-color); border: 0; border-radius: 6px; overflow: hidden; background: #2b4035; }
.cd-category progress::-webkit-progress-bar { background: #2b4035; }
.cd-category progress::-webkit-progress-value { background: var(--category-color); }
.cd-category progress::-moz-progress-bar { background: var(--category-color); }
.cd-drawings { margin: 32px 0; padding: 28px; border: 1px solid var(--st-line); border-radius: 24px; background: var(--st-bg-soft); }
.cd-drawings > p { margin: -4px 0 24px; color: var(--st-muted); font-size: 13px; line-height: 1.7; }
.cd-choices { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.cd-choices button { display: grid; justify-items: start; gap: 10px; min-width: 0; padding: 18px; border: 1px solid var(--st-line); border-radius: 14px; color: var(--st-paper); background: rgba(255,255,255,.03); text-align: left; cursor: pointer; }
.cd-choices button:hover { background: rgba(143,216,182,.08); }
.cd-choices button[aria-pressed="true"] { border-color: var(--st-mint); background: rgba(143,216,182,.12); }
.cd-choice-number { color: var(--st-mint); font-size: 12px; font-variant-numeric: tabular-nums; }
.cd-choices strong { max-width: 100%; font-size: 18px; overflow-wrap: anywhere; }
.cd-choices small { color: var(--st-muted); font-size: 11px; line-height: 1.6; }
.cd-choice-status { color: var(--st-mint); font-size: 11px; line-height: 1.7; }
.cd-locked, .cd-premium { margin: 24px 0; padding: 28px; border: 1px solid var(--st-gold); border-radius: 22px; background: var(--st-panel-solid); }
.cd-locked { display: flex; gap: 24px; align-items: flex-start; }
.cd-locked > div { min-width: 0; overflow-wrap: anywhere; }
.cd-lock-icon { font-size: 42px; }
.cd-locked .eyebrow { margin: 0; }
.cd-locked h2, .cd-premium h2 { margin: 12px 0; font-size: 26px; }
.cd-locked p, .cd-premium p { max-width: 700px; color: var(--st-muted); font-size: 14px; line-height: 1.8; }
.cd-premium-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.cd-premium-actions a { width: auto; display: inline-flex; align-items: center; }
.cd-feedback:empty { display: none; }
.cd-game { display: grid; grid-template-columns: minmax(0, 1fr) 320px; align-items: start; gap: 24px; }
.cd-board-panel, .cd-guide { min-width: 0; border: 1px solid var(--st-line); border-radius: 20px; background: var(--st-bg-soft); overflow: hidden; }
.cd-board-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 20px; }
.cd-board-heading h2 { margin: 0; font-size: 23px; }
.cd-board-next { display: grid; gap: 6px; text-align: right; }
.cd-board-next span { color: var(--st-muted); font-size: 11px; }
.cd-board-next strong { color: var(--st-gold-soft); font-size: 20px; font-variant-numeric: tabular-nums; }
.cd-grid-wrap { background: #faf8f0; }
#cd-grid { display: block; width: min(100%, 760px, max(280px, calc(100dvh - 180px))); height: auto; aspect-ratio: 1; margin: 0 auto; cursor: crosshair; }
#cd-grid-help { margin: 0; padding: 16px 20px; color: var(--st-muted); font-size: 12px; line-height: 1.7; }
.cd-guide { padding: 24px; }
.cd-progress { display: grid; gap: 12px; padding-bottom: 24px; border-bottom: 1px solid var(--st-line); }
.cd-progress .eyebrow { margin: 0; }
.cd-progress strong { font-size: 13px; font-weight: 500; color: var(--st-muted); }
.cd-progress progress { width: 100%; height: 7px; border: 0; border-radius: 8px; overflow: hidden; background: #244334; accent-color: var(--st-mint); }
.cd-progress progress::-webkit-progress-bar { background: #244334; }
.cd-progress progress::-webkit-progress-value { background: var(--st-mint); }
.cd-progress progress::-moz-progress-bar { background: var(--st-mint); }
.cd-guide h2 { font-size: 24px; margin: 24px 0 12px; }
.cd-sequence-help, .cd-complete p { color: var(--st-muted); font-size: 13px; line-height: 1.7; }
.cd-sequence { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 18px 0; padding: 0; list-style: none; counter-reset: coordinates; }
.cd-sequence li { padding: 9px 6px; border: 1px solid var(--st-line); border-radius: 8px; font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; counter-increment: coordinates; }
.cd-sequence li::before { content: counter(coordinates) ". "; color: var(--st-muted); font-size: 10px; }
.cd-sequence .is-drawn { color: var(--st-mint); border-color: transparent; }
.cd-sequence [aria-current="step"] { background: var(--st-mint); color: var(--st-ink); border-color: var(--st-mint); font-weight: 800; }
.cd-sequence [aria-current="step"]::before { color: var(--st-ink); }
.cd-target { display: grid; gap: 10px; padding: 18px 0; }
.cd-target span { color: var(--st-muted); font-size: 12px; }
.cd-target strong { color: var(--st-gold-soft); font-size: 30px; font-variant-numeric: tabular-nums; }
.cd-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.cd-form label { display: grid; gap: 8px; color: var(--st-muted); font-size: 12px; }
.cd-form input { width: 100%; min-height: 48px; padding: 10px; border: 1px solid var(--st-line); border-radius: 10px; background: #19392b; color: var(--st-paper); font-size: 20px; }
.cd-button { min-height: 48px; padding: 12px 18px; border: 1px solid transparent; border-radius: 12px; color: var(--st-ink); background: var(--st-mint); font-weight: 750; cursor: pointer; }
.cd-form .cd-button { grid-column: 1 / -1; }
.cd-button:hover { filter: brightness(1.08); }
.cd-button--quiet { width: 100%; color: var(--st-paper); border-color: var(--st-line); background: rgba(255,255,255,.04); }
.cd-feedback { min-height: 44px; margin: 18px 0; color: var(--st-mint); font-size: 13px; line-height: 1.7; }
.cd-feedback.is-error { color: #ffb5af; }
.cd-complete { padding-bottom: 20px; }
.cd-complete > span { display: inline-grid; width: 50px; height: 50px; place-items: center; border: 1px solid var(--st-mint); border-radius: 50%; color: var(--st-mint); font-size: 27px; }
.coordinate-drawing-page :is(button, input, a):focus-visible { outline: 3px solid var(--st-gold); outline-offset: 4px; }
@media (max-width: 1000px) {
  .cd-categories { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
  .cd-game { grid-template-columns: minmax(0, 1fr) 285px; gap: 16px; }
  .cd-guide { padding: 20px; }
  .cd-choices button { padding: 12px; }
}
@media (max-width: 760px) {
  .cd-categories { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cd-category { padding: 16px; border-radius: 16px; }
  .cd-category strong { font-size: 18px; }
  .cd-category-icon { width: 54px; height: 54px; margin-top: 20px; font-size: 30px; }
  .cd-premium-badge { top: 10px; right: 12px; font-size: 9px; }
  .cd-drawings { padding: 18px; }
  .cd-locked { padding: 20px; gap: 12px; }
  .cd-lock-icon { font-size: 28px; }
  .cd-game { grid-template-columns: minmax(0, 1fr); }
  .cd-sequence { grid-template-columns: repeat(auto-fit, minmax(95px, 1fr)); }
  .cd-choices { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .cd-choices strong { font-size: 16px; }
  .cd-target { padding-top: 8px; }
  .cd-progress { padding-bottom: 16px; }
  .coordinate-drawing-page .exercise-nav { width: 100%; }
}
@media (max-width: 400px) {
  .cd-choices { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cd-board-heading { flex-wrap: wrap; }
}