/* LESSON-SPECIFIC: define :root variables in per-lesson <style> */

/* LESSON-SPECIFIC: define [data-theme="dark"] variables in per-lesson <style> */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', 'Noto Sans JP', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* Dark mode gradient glassy background */
/* LESSON-SPECIFIC: define [data-theme="dark"] body in per-lesson <style> */

/* ===== TOP NAVIGATION BAR - Auto-Hide with Glassmorphism ===== */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  /* Auto-hide: initial state hidden (GSAP handles animation) */
  transform: translateY(-100%);
  /* Glassmorphism effect */
  background: rgba(250, 248, 245, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(28, 25, 23, 0.08);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

/* .top-nav visibility controlled by GSAP */

[data-theme="dark"] .top-nav {
  background: rgba(15, 14, 13, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.top-nav-logo {
  font-family: 'New York', 'Georgia', serif;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
}

.top-nav-center {
  display: flex;
  gap: 4px;
  background: var(--bg-warm);
  padding: 4px;
  border-radius: 100px;
}

.top-nav-link {
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 100px;
  cursor: pointer;
  border: none;
  background: transparent;
  font-family: inherit;
}

/* .top-nav-link hover handled by GSAP */

.top-nav-link.active {
  color: var(--text);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.top-nav-right {
  display: flex;
  gap: 8px;
  align-items: center;
}

.top-nav-theme {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

/* .top-nav-theme hover handled by GSAP */

/* ===== SUB NAVIGATION - Auto-Hide with Glassmorphism ===== */
.sub-nav {
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  z-index: 999;
  padding: 12px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  /* Auto-hide: initial state hidden (GSAP handles animation) */
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  /* Glassmorphism effect */
  background: rgba(250, 248, 245, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(28, 25, 23, 0.08);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

/* .sub-nav visibility controlled by GSAP */

[data-theme="dark"] .sub-nav {
  background: rgba(15, 14, 13, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.sub-nav-categories {
  display: flex;
  gap: 8px;
}

.sub-nav-cat {
  min-height: 44px;
  padding: 10px 24px;
  border: 2px solid var(--border);
  border-radius: 100px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.sub-nav-cat::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
}

.sub-nav-cat[data-cat="basic"] { --cat-color: var(--cat-basic); --cat-bg: var(--cat-basic-light); }
.sub-nav-cat[data-cat="comm"] { --cat-color: var(--cat-comm); --cat-bg: var(--cat-comm-light); }
.sub-nav-cat[data-cat="advanced"] { --cat-color: var(--cat-advanced); --cat-bg: var(--cat-advanced-light); }

/* .sub-nav-cat hover handled by GSAP */

.sub-nav-cat.active {
  border-color: var(--cat-color);
  background: var(--cat-bg);
  color: var(--cat-color);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.sub-nav-sections {
  display: flex;
  gap: 6px;
}

.sub-nav-section {
  width: 44px;
  height: 44px;
  border: 2px solid var(--border);
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 700;
  font-family: 'Space Grotesk', monospace;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* .sub-nav-section hover handled by GSAP */

.sub-nav-section.active {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
  box-shadow: var(--shadow-sm);
}

/* ===== MAIN CONTENT AREA ===== */
.main-content {
  padding-top: 60px;
  min-height: 100vh;
}

.main-content.has-subnav {
  padding-top: 152px;
}

/* ===== HOME VIEW ===== */
.view-home {
  min-height: calc(100vh - 60px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 40px;
  position: relative;
  overflow: hidden;
}

.home-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 20%, var(--cat-basic-light) 0%, transparent 50%),
    radial-gradient(ellipse 60% 50% at 20% 80%, var(--cat-comm-light) 0%, transparent 40%),
    radial-gradient(ellipse 50% 40% at 80% 70%, var(--cat-advanced-light) 0%, transparent 40%);
  opacity: 0.6;
}

.home-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.home-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.home-title {
  font-family: 'New York', 'Georgia', serif;
  font-size: clamp(48px, 10vw, 120px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

/* LESSON-SPECIFIC: define .home-title em in per-lesson <style> */

.home-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.home-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
}

.btn-primary {
  padding: 18px 40px;
  background: var(--text);
  color: var(--bg);
  border: none;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
}

/* .btn-primary hover handled by GSAP */

.btn-secondary {
  padding: 18px 40px;
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
  border-radius: 100px;
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
}

/* .btn-secondary hover handled by GSAP */

/* ===== OVERVIEW VIEW ===== */
.view-overview {
  padding: 60px 48px 100px;
  max-width: 1400px;
  margin: 0 auto;
}

.overview-header {
  text-align: center;
  margin-bottom: 60px;
}

.overview-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.overview-title {
  font-family: 'New York', 'Georgia', serif;
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 400;
  letter-spacing: -0.02em;
}

/* LESSON-SPECIFIC: section type comment (e.g. "Conjunction/Grammar Reference Sections") in per-lesson <style> */
.conj-section {
  margin-bottom: 80px;
}

.conj-section-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}

.conj-section-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  flex-shrink: 0;
}

/* LESSON-SPECIFIC: define .conj-section.[type] .conj-section-icon rules in per-lesson <style> */

.conj-section-title {
  font-family: 'New York', 'Georgia', serif;
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 400;
}

.conj-section-title-jp {
  font-family: 'Noto Serif JP', 'Yu Mincho', serif;
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.conj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.conj-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-visible);
  border-left: 4px solid var(--card-accent);
  transform-style: preserve-3d;
}

/* .conj-card hover + entrance handled by GSAP */

/* LESSON-SPECIFIC: define .conj-section.[type] .conj-card rules in per-lesson <style> */

.conj-card-word {
  font-family: 'New York', 'Georgia', serif;
  font-size: 26px;
  font-weight: 400;
  color: var(--card-accent);
  margin-bottom: 4px;
}

.conj-card-meaning {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.conj-card-example {
  margin-bottom: 16px;
}

.conj-card-example-en {
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 6px;
}

.conj-card-example-en strong {
  color: var(--card-accent);
  font-weight: 700;
}

.conj-card-example-jp {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.conj-card-tip {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  background: var(--bg-warm);
  border-radius: var(--radius-sm);
  margin-top: 16px;
}

[data-theme="dark"] .conj-card-tip {
  background: var(--bg);
}

.conj-card-tip-icon {
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 1px;
}

.conj-card-tip-text {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ===== QUESTION VIEW ===== */
.view-question,
.view-retry {
  padding: 40px 48px 100px;
  max-width: 1000px;
  margin: 0 auto;
}

.question-header {
  margin-bottom: 32px;
}

.question-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}

.question-category-badge.basic {
  background: var(--cat-basic-light);
  color: var(--cat-basic);
}

.question-category-badge.comm {
  background: var(--cat-comm-light);
  color: var(--cat-comm);
}

.question-category-badge.advanced {
  background: var(--cat-advanced-light);
  color: var(--cat-advanced);
}

.question-title {
  font-family: 'New York', 'Georgia', serif;
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 400;
  margin-bottom: 8px;
}

.question-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
}

/* Progress */
.progress-wrap {
  margin-bottom: 32px;
}

.progress-bar-bg {
  height: 6px;
  background: var(--bg-warm);
  border-radius: 100px;
  overflow: hidden;
}

/* LESSON-SPECIFIC: define .progress-bar-fill in per-lesson <style> */

.progress-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 8px;
  text-align: right;
}

/* Search */
.search-wrap {
  position: relative;
  margin-bottom: 32px;
}

.search-input {
  width: 100%;
  padding: 16px 20px 16px 52px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
}

/* LESSON-SPECIFIC: define .search-input:focus in per-lesson <style> */
.search-input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 18px;
}

/* Questions List */
.questions-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  contain: content;
}

/* Question Card */
/* .qcard reveal + hover handled by GSAP */
.qcard {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border-visible);
  box-shadow: var(--shadow);
  overflow: hidden;
}

/* Dark mode cards */
[data-theme="dark"] .qcard {
  background: var(--card);
  border: 1px solid var(--border-visible);
  box-shadow: var(--shadow);
  contain: layout style;
}

.qcard-question, .qcard-left, .qcard-right {
  box-sizing: border-box;
}

/* Split layout */
.qcard {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  grid-template-areas:
    "question question"
    "left right";
}

.qcard-question {
  grid-area: question;
  padding: 24px;
  border-bottom: 1px solid var(--border);
}

.qcard-left {
  grid-area: left;
  padding: 24px;
  border-right: 1px solid var(--border);
}

.qcard-right {
  grid-area: right;
  padding: 24px;
  background: var(--card);
}

.collapsible {
  display: none;
}

.collapsible.open {
  display: block;
  margin-top: 16px;
}

.toggle-btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.toggle-btn {
  flex: 1;
  min-width: 80px;
  min-height: 44px;
  padding: 12px 24px;
  border: none;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12),
              0 4px 12px rgba(0, 0, 0, 0.08);
}

/* .toggle-btn hover handled by GSAP */

/* LESSON-SPECIFIC: define .toggle-btn.vocab in per-lesson <style> */
/* LESSON-SPECIFIC: define .toggle-btn.hint in per-lesson <style> */
/* LESSON-SPECIFIC: define .toggle-btn.answer in per-lesson <style> */

@media (max-width: 800px) {
  .qcard {
    grid-template-columns: 1fr;
    grid-template-areas:
      "question"
      "left"
      "right";
  }
  .qcard-left {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}

/* LESSON-SPECIFIC: define .qnum in per-lesson <style> */

.qtext {
  font-size: var(--fs-qtext);
  line-height: 1.8;
  margin-bottom: 12px;
}

.choices, .scramble {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 17px;
}

.qcard-question .choices:last-child,
.qcard-question .scramble:last-child {
  margin-bottom: 0;
}

/* LESSON-SPECIFIC: define .choices in per-lesson <style> */

/* LESSON-SPECIFIC: define .scramble in per-lesson <style> */

.box {
  border-radius: var(--radius-sm);
  padding: 16px;
  font-size: 17px;
  line-height: 1.7;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

/* .box hover handled by GSAP */

/* LESSON-SPECIFIC: define .vocab-box in per-lesson <style> */

/* LESSON-SPECIFIC: define .hint-box in per-lesson <style> */

/* LESSON-SPECIFIC: define .hint-item in per-lesson <style> */

.hint-item:last-child {
  border-bottom: none;
}

/* LESSON-SPECIFIC: define .ans-box in per-lesson <style> */

/* Dark mode box styling */
[data-theme="dark"] .box {
  background: var(--card);
  border-color: var(--border-visible);
  box-shadow: var(--shadow-sm);
}

/* dark .box hover handled by GSAP */

.choice-explanations {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(90, 154, 110, 0.2);
}

/* LESSON-SPECIFIC: define .choice-exp in per-lesson <style> */

.choice-exp:last-child {
  border-bottom: none;
}

/* LESSON-SPECIFIC: define .choice-exp.correct in per-lesson <style> */

.choice-exp.wrong {
  color: var(--text-secondary);
}

.vocab-item {
  padding: 6px 0;
  border-bottom: 1px solid rgba(155,127,207,0.15);
}

.vocab-item:last-child { border-bottom: none; }

/* LESSON-SPECIFIC: define .vocab-word in per-lesson <style> */

.box-label {
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 12px;
  display: block;
}

/* LESSON-SPECIFIC: define .jp-text in per-lesson <style> */

.jp-text:last-child {
  border-bottom: none;
}

/* LESSON-SPECIFIC: define .grammar-ref in per-lesson <style> */

.no-match { display: none !important; }

/* Footer */
footer {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 13px;
  border-top: 1px solid var(--border);
}

/* ===== VIEW VISIBILITY ===== */
.view-home,
.view-overview,
.view-question,
.view-retry {
  display: none;
}

.view-home.active { display: flex; }
.view-overview.active { display: block; }
.view-question.active { display: block; }
.view-retry.active { display: block; }

/* ===== RETRY VIEW ===== */
.retry-view-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: rgba(185, 28, 28, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font: 600 14px -apple-system, BlinkMacSystemFont, "Hiragino Sans", sans-serif;
  box-shadow: 0 2px 12px rgba(185, 28, 28, 0.3);
}
.retry-view-info {
  display: flex;
  align-items: center;
  gap: 10px;
}
.retry-view-badge {
  padding: 3px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.18);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.retry-view-count {
  font-size: 13px;
  opacity: 0.9;
}
.retry-view-exit {
  padding: 6px 16px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font: 600 13px -apple-system, BlinkMacSystemFont, sans-serif;
  cursor: pointer;
}
.retry-view-exit:hover {
  background: rgba(255, 255, 255, 0.25);
}
.retry-section-header {
  padding: 16px 0 8px;
  margin: 24px 0 8px;
  font: 600 15px -apple-system, BlinkMacSystemFont, "Hiragino Sans", sans-serif;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.retry-section-header:first-child {
  margin-top: 8px;
}

[data-theme="dark"] .retry-view-header,
html.dark .retry-view-header {
  background: rgba(153, 27, 27, 0.95);
  box-shadow: 0 2px 12px rgba(153, 27, 27, 0.4);
}
[data-theme="dark"] .retry-section-header,
html.dark .retry-section-header {
  color: var(--text-muted);
  border-bottom-color: var(--border);
}

/* All animations handled by GSAP - @keyframes removed */

/* Reduced motion: GSAP handles animation skipping via UV_REDUCED flag */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* Responsive */
@media (max-width: 900px) {
  .conj-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .top-nav {
    padding: 0 16px;
    height: 56px;
  }

  .top-nav-logo {
    font-size: 13px;
  }

  .top-nav-center {
    display: none;
  }

  .top-nav-right {
    gap: 6px;
  }

  .sub-nav {
    padding: 12px 16px;
    gap: 10px;
  }

  .sub-nav-categories {
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
  }

  .sub-nav-cat {
    min-height: 44px;
    padding: 10px 16px;
    font-size: 13px;
  }

  .sub-nav-sections {
    gap: 4px;
  }

  .sub-nav-section {
    width: 40px;
    height: 40px;
    font-size: 13px;
  }

  .main-content {
    padding-top: 56px;
  }

  .main-content.has-subnav {
    padding-top: 140px;
  }

  .view-home {
    padding: 24px;
  }

  .home-title {
    font-size: clamp(40px, 12vw, 80px);
  }

  .home-cta {
    flex-direction: column;
    width: 100%;
  }

  .btn-primary, .btn-secondary {
    width: 100%;
    padding: 16px 32px;
  }

  .view-overview,
  .view-question,
  .view-retry {
    padding: 32px 20px 80px;
  }

  .retry-view-header {
    padding: 10px 16px;
  }

  .toggle-btn {
    min-height: 48px;
    padding: 14px 28px;
    font-size: 14px;
  }
}

/* Mobile nav drawer */
@media (max-width: 768px) {
  .mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--card);
    border-top: 1px solid var(--border);
    padding: 12px 16px;
    display: flex;
    justify-content: space-around;
    z-index: 1001;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
  }

  .mobile-nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border-radius: 12px;
  }

  /* LESSON-SPECIFIC: define .mobile-nav-btn.active in per-lesson <style> */

  .mobile-nav-btn-icon {
    font-size: 20px;
  }

  footer {
    padding-bottom: 100px;
  }
}

@media (min-width: 769px) {
  .mobile-nav {
    display: none;
  }
}

/* ===== LARGE SCREEN OPTIMIZATION ===== */
@media (min-width: 1200px) {
  .view-question {
    max-width: 1100px;
  }
}

@media (min-width: 1440px) {
  .view-question {
    max-width: 1250px;
    padding: 48px 56px 100px;
  }
  .view-overview {
    max-width: 1500px;
  }
}

@media (min-width: 1728px) {
  .view-question {
    max-width: 1400px;
    padding: 56px 64px 100px;
  }
  .view-overview {
    max-width: 1600px;
  }
  .qtext {
    font-size: 20px;
  }
}

/* ===== PRINT STYLESHEET ===== */
@media print {
  .top-nav, .sub-nav, .mobile-nav,
  .iq-progress-tab, .iq-progress-panel, .iq-progress-backdrop,
  .iq-focus-overlay, .iq-zone, .iq-kbd-toggle, .iq-focus-toggle,
  .iq-mute-toggle, .iq-nav-toggle, .iq-edge-trigger,
  .toggle-btn-row, .collapsible:not(.open),
  .search-wrap, .progress-wrap, .home-cta,
  .top-nav-theme, .btn-print, .home-bg,
  .iq-review-nav, .iq-toast,
  .iq-badge-panel, .iq-install-banner { display: none !important; }

  body {
    background: white !important;
    color: black !important;
    font-size: 12pt;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .main-content { padding: 0 !important; margin: 0 !important; }
  .view-question { max-width: 100% !important; padding: 0 !important; }
  .view-home { display: block !important; }
  .view-home .home-content { display: block !important; text-align: center; }
  .home-title {
    font-size: 18pt !important;
    color: black !important;
    -webkit-text-fill-color: black !important;
    background: none !important;
  }
  .home-subtitle { font-size: 10pt !important; color: #444 !important; }
  .home-label { font-size: 10pt !important; color: #666 !important; }

  .view-question { display: block !important; }
  .question-header { display: none !important; }

  .print-section-title {
    font: bold 14pt -apple-system, BlinkMacSystemFont, "Hiragino Sans", sans-serif;
    color: black !important;
    margin: 16pt 0 8pt;
    padding-bottom: 4pt;
    border-bottom: 1px solid #999;
    page-break-after: avoid;
  }

  .qcard {
    display: block !important;
    opacity: 1 !important;
    transform: none !important;
    box-shadow: none !important;
    border: 1px solid #ddd !important;
    border-radius: 0 !important;
    padding: 12pt !important;
    margin-bottom: 8pt !important;
    page-break-inside: avoid;
    background: white !important;
  }
  .qcard-question { margin-bottom: 6pt; }
  .qcard-left, .qcard-right { display: none; }

  body.print-answers .qcard-right { display: block !important; }
  body.print-answers .collapsible[data-type="answer"] { display: block !important; }
  body.print-answers .ans-box {
    border: none !important;
    padding: 6pt 0 !important;
    box-shadow: none !important;
  }
  body.print-answers .toggle-btn-row { display: none !important; }

  .conj-grid { columns: 2; column-gap: 12pt; }
  .conj-card {
    break-inside: avoid;
    margin-bottom: 8pt;
    box-shadow: none !important;
    border: 1px solid #ddd;
  }
}