.brand-icon { width: 42px; height: 42px; object-fit: contain; }
.brand > span { display: grid; line-height: 1.2; }
.brand small { margin-top: 3px; color: #557073; font-size: 11px; }
.driving { margin-top: 22px; padding: 15px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.driving span, .section-head > span { display: block; margin-bottom: 5px; color: var(--coral); font: 700 11px/1.4 'JetBrains Mono', monospace; }
.driving strong { display: block; font-size: 18px; line-height: 1.5; }
.output small { display: block; margin-top: 12px; padding-top: 9px; border-top: 1px solid #15383c30; font-size: 12px; }
.section-head h2 { margin: 0 0 15px; }
.diagnostic-grid, .concept-grid, .workflow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.diagnostic-grid > div, .concept-grid > article, .workflow > div { padding: 17px; background: var(--white); }
.diagnostic-grid b, .concept-grid b, .workflow b { display: block; margin-bottom: 6px; color: var(--teal); }
.diagnostic-grid p, .concept-grid p, .workflow p { margin: 0; color: #405c60; }
.path-intro { border-top: 1px solid var(--line); }
.path-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.path-stage { border: 1px solid var(--line); border-left: 5px solid var(--blue); background: var(--white); transition: .15s; }
.path-stage.done { border-left-color: var(--teal); background: #eaf4ef; }
.path-stage label { display: grid; grid-template-columns: auto 44px 1fr; gap: 12px; align-items: start; padding: 18px; cursor: pointer; }
.path-stage input { width: 22px; height: 22px; margin: 3px 0 0; accent-color: var(--teal); }
.stage-no { color: var(--coral); font: 700 18px/1.4 'JetBrains Mono', monospace; }
.path-stage b, .path-stage strong, .path-stage small { display: block; }
.path-stage b { margin-bottom: 4px; color: var(--teal); font-size: 13px; }
.path-stage strong { font-size: 15px; line-height: 1.55; }
.path-stage small { margin-top: 8px; color: #526a6d; line-height: 1.5; }
.criteria { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.criteria > div { display: grid; grid-template-columns: 45px 1fr; align-items: center; padding: 13px 0; border-bottom: 1px solid var(--line); font-weight: 700; }
.criteria > div:nth-child(odd) { padding-right: 18px; }
.criteria > div:nth-child(even) { padding-left: 18px; border-left: 1px solid var(--line); }
.criteria span { color: var(--coral); font: 700 13px 'JetBrains Mono', monospace; }
.misconception blockquote { margin: 0 0 18px; padding: 20px; border-left: 7px solid var(--coral); background: #fff0e9; font-size: 23px; font-weight: 900; line-height: 1.45; }
.myth-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.myth-grid > div { padding: 16px 0; border-top: 2px solid var(--ink); }
.myth-grid b { color: var(--teal); }
.quiz-list { display: grid; gap: 22px; }
.quiz-item { padding: 0 0 22px; border-bottom: 1px solid var(--line); }
.quiz-item h3 { margin: 0 0 12px; font-size: 18px; }
.quiz-options { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.quiz-options button { min-height: 48px; padding: 10px 13px; border: 1px solid var(--line); border-radius: 5px; background: var(--white); color: var(--ink); text-align: left; font-weight: 700; cursor: pointer; }
.quiz-options button:hover:not(:disabled) { border-color: var(--blue); transform: translateY(-1px); }
.quiz-options button.correct { border-color: var(--teal); background: #d9eee5; }
.quiz-options button.wrong { border-color: var(--coral); background: #f8dcd5; }
.quiz-options button:disabled { color: var(--ink); opacity: 1; }
.quiz-feedback { display: none; margin: 10px 0 0; padding: 11px 13px; border-left: 4px solid var(--blue); background: #e6eff5; }
.quiz-feedback.show { display: block; }
.rubric-wrap { overflow-x: auto; }
.rubric { width: 100%; min-width: 760px; border-collapse: collapse; background: var(--white); }
.rubric th, .rubric td { padding: 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.rubric th { background: var(--ink); color: #fff; }
.rubric td:first-child { width: 15%; color: var(--teal); font-weight: 900; }
.faq-list { display: grid; gap: 9px; }
.faq-list details { padding: 12px 15px; border: 1px solid var(--line); border-left: 5px solid var(--yellow); background: var(--white); }
.faq-list summary { font-weight: 900; cursor: pointer; }
.faq-list p { margin: 10px 0 2px; color: #405c60; }
.media-links { grid-template-columns: 1fr !important; margin-top: 10px; }
.prompt-list { display: grid; border-top: 1px solid var(--line); }
.prompt-list > div { display: grid; grid-template-columns: 45px 1fr auto; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.prompt-list > div > span { color: var(--coral); font: 700 13px 'JetBrains Mono', monospace; }
.prompt-list p { margin: 0; }
.copy-prompt { min-width: 64px; height: 36px; border: 1px solid var(--line); border-radius: 5px; background: var(--white); font-weight: 800; cursor: pointer; }
.copy-prompt:hover { border-color: var(--teal); }
.pick-challenge, .draw-toggle { width: 100%; margin-top: 10px; }
.pick-challenge:disabled { opacity: .65; cursor: wait; }
.challenge { transition: background-color .2s ease, transform .2s ease; }
.challenge.challenge-drawing { background: #fff5d6; animation: challenge-draw .14s ease-in-out infinite alternate; }
.challenge.challenge-result { animation: challenge-result .42s ease-out; }
@keyframes challenge-draw { from { transform: translateY(1px) rotate(-.35deg); } to { transform: translateY(-1px) rotate(.35deg); } }
@keyframes challenge-result { from { opacity: .35; transform: scale(.97); } to { opacity: 1; transform: scale(1); } }
.page-draw { display: block; position: fixed; inset: 0; z-index: 250; background: transparent; pointer-events: none; touch-action: none; }
.page-draw.active { pointer-events: all; cursor: crosshair; }
.draw-toolbar { display: none; position: fixed; right: max(18px, env(safe-area-inset-right)); bottom: max(18px, env(safe-area-inset-bottom)); z-index: 500; max-width: calc(100vw - 36px); align-items: center; gap: 8px; padding: 10px; border: 1px solid var(--line); background: var(--white); box-shadow: 0 10px 35px #15383c38; overflow-x: auto; overscroll-behavior: contain; }
.draw-toolbar.show { display: flex; }
.draw-color { width: 34px; height: 34px; flex: 0 0 34px; border: 2px solid #fff; border-radius: 50%; outline: 1px solid var(--line); background: var(--swatch); cursor: pointer; }
.draw-color.active { outline: 3px solid var(--ink); }
.draw-toolbar button:not(.draw-color) { height: 36px; padding: 0 11px; border: 1px solid var(--line); background: var(--paper); font-weight: 800; cursor: pointer; }
.tool-dock { z-index: 400; }
.drawing .tool-dock { display: none; }
.tool-toggle { display: grid; place-items: center; font-size: 30px; line-height: 1; }
.tools { max-height: min(620px, calc(100vh - 100px)); overflow: auto; }
.drawing { overflow: hidden; }

@media (max-width: 820px) {
  .diagnostic-grid, .concept-grid, .workflow, .path-grid, .criteria, .myth-grid { grid-template-columns: 1fr; }
  .criteria > div:nth-child(odd), .criteria > div:nth-child(even) { padding-right: 0; padding-left: 0; border-left: 0; }
  .quiz-options { grid-template-columns: 1fr; }
  .prompt-list > div { grid-template-columns: 36px 1fr; }
  .copy-prompt { grid-column: 2; justify-self: start; }
  .draw-toolbar { right: max(8px, env(safe-area-inset-right)); bottom: max(8px, env(safe-area-inset-bottom)); left: max(8px, env(safe-area-inset-left)); max-width: none; }
}

@media print {
  .page-draw, .draw-toolbar { display: none !important; }
  .view:not(.active) { display: none !important; }
  .view.active { display: block !important; }
}

@media (prefers-reduced-motion: reduce) {
  .challenge.challenge-drawing, .challenge.challenge-result { animation: none; }
}

/* Phase 7: weekly picture-book visuals */
.hero{align-items:start}
.hero-copy{align-self:center}
.hero-side{display:grid;gap:12px;min-width:0}
.week-visual{position:relative;margin:0;overflow:hidden;border:2px solid var(--ink);border-radius:7px;background:var(--white);box-shadow:6px 6px 0 #15383c1f}
.week-visual img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.week-visual figcaption{position:absolute;right:10px;bottom:10px;max-width:calc(100% - 20px);padding:6px 10px;border:1px solid #15383c33;border-radius:5px;background:#fffdf8ed;font-size:13px;font-weight:800}
.hero-side .output{min-height:0}
.picture-book-link{border-left-color:var(--coral)}
.visual-learning-wall{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:0 0 24px}
.visual-learning-card{display:block;overflow:hidden;min-width:0;border:1px solid var(--line);border-radius:7px;background:var(--white);color:inherit;text-decoration:none}
.visual-learning-card:hover{border-color:var(--coral)}
.visual-learning-card img{display:block;width:100%;height:150px;object-fit:cover;background:var(--paper)}
.visual-learning-card span{display:block;padding:9px 11px;color:#456166;font-size:13px}
.visual-learning-card b{display:block;color:var(--ink);font-size:14px}
@media(max-width:820px){.hero-side{grid-template-columns:minmax(0,1.25fr) minmax(220px,.75fr);align-items:stretch}.hero-side .output{display:grid;align-content:center}}
@media(max-width:720px){.visual-learning-wall{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}.visual-learning-card{flex:0 0 78vw;scroll-snap-align:start}}
@media(max-width:560px){.hero-side{grid-template-columns:1fr}.week-visual figcaption{position:static;max-width:none;border:0;border-top:1px solid var(--line);border-radius:0;background:var(--white)}}
@media print{.week-visual{box-shadow:none}.week-visual figcaption{position:static;max-width:none;border:0;border-top:1px solid var(--line);border-radius:0}}