:root {
  color-scheme: light;
  --green-900: #0d412b;
  --green-800: #145b3b;
  --green-700: #176b45;
  --green-100: #e7f4ed;
  --gold-800: #775000;
  --gold-600: #b37700;
  --gold-100: #fff5d8;
  --blue-800: #164b78;
  --blue-100: #eaf4fc;
  --red-800: #8c241d;
  --red-100: #fff0ee;
  --ink: #17231c;
  --muted: #58665f;
  --line: #d7e1db;
  --paper: #ffffff;
  --page: #f3f7f4;
  --shadow: 0 7px 24px rgba(15, 65, 43, .09);
  --radius: 20px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: Arial, "Noto Sans", sans-serif;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

button, input, select, textarea { font: inherit; }

button, summary, select { cursor: pointer; }

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[contenteditable="true"]:focus-visible,
summary:focus-visible {
  outline: 3px solid #2d83c5;
  outline-offset: 3px;
}

.document-title:focus { outline: 3px solid #2d83c5; outline-offset: 5px; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 8px;
  color: #fff;
  background: var(--green-900);
}

.skip-link:focus { transform: translateY(0); }

.app-shell {
  width: min(100%, 940px);
  margin: 0 auto;
  padding: 18px;
}

.hero {
  padding: 22px;
  color: #fff;
  text-align: center;
  border-radius: 24px;
  background: linear-gradient(145deg, var(--green-800), var(--green-900));
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 2px 0 4px;
  font-size: clamp(2rem, 6vw, 3.15rem);
  line-height: 1.08;
}

.hero p { margin: 7px 0; }

.eyebrow {
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  opacity: .92;
}

.hero-actions,
.form-actions,
.answer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-actions { justify-content: center; margin-top: 17px; }

.counter {
  display: inline-block;
  margin-top: 16px !important;
  padding: 8px 13px;
  border-radius: 999px;
  color: #5f4300;
  background: #fff4cf;
  font-weight: 800;
}

.card {
  margin: 16px 0;
  padding: 22px;
  border: 1px solid rgba(20, 91, 59, .08);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.compact-card { padding: 16px 18px; }

.card h2,
.card h3,
.card p { max-width: 72ch; }

.card h2 { margin: 0 0 8px; line-height: 1.2; }

.section-heading-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.kicker {
  margin: 0 0 3px;
  color: var(--green-700);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.quality-badge,
.decision-badge,
.ai-label {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--green-900);
  background: var(--green-100);
  font-size: .77rem;
  font-weight: 800;
  text-align: center;
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.feature-strip li {
  padding: 9px;
  border-radius: 10px;
  background: var(--green-100);
  font-size: .88rem;
  font-weight: 700;
  text-align: center;
}

.help-text,
.review-note {
  color: var(--muted);
  font-size: .91rem;
}

.mode-groups {
  display: grid;
  gap: 12px;
  margin: 18px 0;
}

.mode-group {
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #fbfdfb;
}

.mode-group > h3 {
  margin: 0 0 9px;
  color: var(--green-800);
  font-size: .82rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.mode-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
}

.mode-tab {
  min-height: 54px;
  padding: 9px 7px;
  border: 2px solid transparent;
  border-radius: 12px;
  color: var(--green-900);
  background: var(--green-100);
  font-weight: 800;
}

.mode-tab.active {
  color: #fff;
  background: var(--green-700);
  box-shadow: 0 4px 12px rgba(23, 107, 69, .2);
}

.mode-description,
.faith-note,
.status-message,
.success-message {
  padding: 12px 14px;
  border-radius: 12px;
  background: #f2f6f3;
}

.faith-note {
  border-inline-start: 5px solid var(--gold-600);
  color: #563b00;
  background: var(--gold-100);
}

.field-grid {
  display: grid;
  gap: 12px;
}

.two-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.field-label {
  display: block;
  margin: 11px 0;
  font-weight: 800;
}

.field {
  display: block;
  width: 100%;
  min-height: 49px;
  margin-top: 6px;
  padding: 11px 12px;
  border: 1.5px solid #b9c8c0;
  border-radius: 10px;
  color: var(--ink);
  background: #fff;
  font-weight: 400;
}

.field:focus { border-color: var(--green-700); }

.textarea { min-height: 150px; resize: vertical; }
.small-textarea { min-height: 78px; resize: vertical; }

.compact-fields { margin-bottom: 4px; }

.starter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin: 10px 0 2px;
  color: var(--muted);
  font-size: .86rem;
}

.starter-chip {
  min-height: 36px;
  padding: 6px 10px;
  border: 1px solid #b8cfc1;
  border-radius: 999px;
  color: var(--green-900);
  background: #fff;
  font-weight: 700;
}

.starter-chip:hover { background: var(--green-100); }

.preferences {
  display: grid;
  gap: 10px;
  margin: 18px 0;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.preferences legend { padding: 0 7px; font-weight: 800; }
.preferences label, .checkbox-row { display: flex; align-items: flex-start; gap: 9px; }
.preferences .preference-select { display: grid; grid-template-columns: minmax(110px, auto) minmax(150px, 1fr); align-items: center; }
.preferences .preference-select .field { margin: 0; }
.preferences input, .checkbox-row input { width: 20px; height: 20px; flex: 0 0 auto; }

.preference-with-note span { display: grid; gap: 2px; }
.preference-with-note small { color: var(--muted); font-size: .82rem; font-weight: 400; line-height: 1.45; }

.button {
  min-height: 48px;
  padding: 11px 16px;
  border: 0;
  border-radius: 11px;
  font-weight: 800;
}

.button:disabled { cursor: wait; opacity: .58; }
.button.is-active { color: #fff; background: var(--red-800); }
.button-primary { flex: 1; color: #fff; background: var(--green-700); }
.button-secondary { color: var(--green-900); background: var(--green-100); }
.button-light { color: var(--green-900); background: #fff; }
.button-quiet { color: var(--green-800); background: #f1f4f2; }
.full-width { width: 100%; }

.status-message:empty { display: none; }
.status-message.error { color: var(--red-800); background: var(--red-100); }
.status-message.success, .success-message { color: var(--green-900); background: var(--green-100); font-weight: 800; }

.answer-content {
  min-height: 120px;
  font-size: 1.05rem;
  line-height: 1.68;
}

.empty-answer { color: var(--muted); }

.document-title {
  margin: 2px 0 16px;
  color: var(--green-900);
  font-size: clamp(1.65rem, 6vw, 2.35rem);
  line-height: 1.18;
}

.document-introduction {
  margin: 0 0 20px;
  padding: 13px 15px;
  border-radius: 12px;
  background: #f4f7f5;
}

.document-section {
  margin: 23px 0 0;
}

.answer-heading {
  margin: 0 0 11px;
  padding: 10px 12px;
  border-radius: 9px;
  color: #fff;
  background: var(--green-800);
  font-size: 1.28rem;
  line-height: 1.3;
}

.answer-subheading {
  margin: 18px 0 9px;
  padding: 8px 11px;
  border-radius: 8px;
  color: #563800;
  background: var(--gold-100);
  font-size: 1.1rem;
  line-height: 1.35;
}

.answer-paragraph { margin: 0 0 13px; }
.answer-list { margin: 8px 0 15px; padding-inline-start: 26px; }
.answer-list li { margin: 5px 0; }

.answer-callout {
  margin: 13px 0;
  padding: 13px 15px;
  border-inline-start: 5px solid var(--blue-800);
  border-radius: 10px;
  background: var(--blue-100);
}

.answer-callout.warning {
  border-inline-start-color: var(--gold-600);
  background: var(--gold-100);
}

.answer-callout.guidance {
  border-inline-start-color: var(--green-800);
  background: var(--green-100);
}

.answer-equation {
  margin: 13px 0;
  padding: 13px;
  border-radius: 9px;
  background: #f1f4f2;
  font-family: "Courier New", monospace;
  font-weight: 700;
  overflow-x: auto;
}

.table-wrap {
  max-width: 100%;
  margin: 13px 0 18px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.answer-table { width: 100%; border-collapse: collapse; min-width: 520px; }
.answer-table th, .answer-table td { padding: 10px; border-bottom: 1px solid var(--line); text-align: start; vertical-align: top; }
.answer-table th { color: #fff; background: var(--green-800); }
.answer-table tr:last-child td { border-bottom: 0; }

.answer-source { color: var(--muted); font-size: .9rem; }
.answer-source a { color: var(--green-800); font-weight: 700; }
.answer-content [lang="ar"],
.answer-content [dir="rtl"] { font-family: "Noto Sans Arabic", Tahoma, Arial, sans-serif; }

.section-tools { display: flex; justify-content: flex-end; margin-top: 8px; }
.regenerate-section { min-height: 38px; padding: 7px 10px; font-size: .82rem; }

.answer-actions { margin-top: 18px; }

.evidence-panel {
  margin-top: 24px;
  padding: 16px;
  border: 1px solid #b9d3e7;
  border-radius: 14px;
  background: var(--blue-100);
}

.evidence-heading { margin: 0 0 7px; color: var(--blue-800); }
.evidence-status { margin: 0 0 10px; }
.evidence-warning { color: var(--red-800); }
.evidence-list { margin: 8px 0; padding-inline-start: 24px; }
.evidence-list li { margin: 7px 0; }
.evidence-list a, .evidence-searches a { color: var(--blue-800); font-weight: 800; }
.evidence-searches { margin-top: 10px; }
.evidence-date { margin: 10px 0 0; color: var(--muted); font-size: .82rem; }

.learning-coach { border-color: #dfc070; background: linear-gradient(145deg, #fffdf7, #fff8e6); }
.learning-actions { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; margin-top: 14px; }
.learning-panel { margin-top: 15px; padding: 16px; border: 1px solid #ddc881; border-radius: 14px; background: #fff; }
.learning-panel h3 { margin: 0 0 8px; color: var(--green-900); }
.learning-prompt { margin: 0 0 13px; font-size: 1.04rem; font-weight: 700; }
.practice-question { margin: 9px 0; padding: 9px 11px; border: 1px solid var(--line); border-radius: 10px; background: #fbfdfb; }
.practice-question summary { min-height: 30px; color: var(--green-900); font-weight: 800; }
.practice-question p { margin: 9px 0 2px; }
.learning-complete { margin-top: 12px; }
.follow-up-row { display: grid; gap: 8px; }
.follow-up-chip { min-height: 46px; padding: 9px 12px; border: 1px solid #b8cfc1; border-radius: 10px; color: var(--green-900); background: #fff; font-weight: 700; text-align: start; }
.follow-up-chip:hover { background: var(--green-100); }
.practice-progress { margin: 13px 0 0; color: var(--muted); font-size: .84rem; }

.editing .editable-text,
.editing td,
.editing th {
  min-height: 1.4em;
  border-radius: 5px;
  outline: 2px dashed #2d83c5;
  outline-offset: 3px;
}

.report-form { margin-top: 18px; padding: 16px; border-radius: 13px; background: #f6f8f7; }

.illustration-card figure { margin: 14px 0 8px; }
.illustration-card img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 15px; background: #f4f6f5; }
.illustration-card figcaption { padding: 9px 2px 0; color: var(--muted); font-size: .92rem; }
.label-chips { display: flex; flex-wrap: wrap; gap: 7px; margin: 10px 0; }
.label-chips span { padding: 5px 9px; border-radius: 999px; color: var(--blue-800); background: var(--blue-100); font-size: .82rem; font-weight: 700; }

.structured-visual {
  margin: 15px 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(145deg, #f7fbf8, #eef6f1);
}

.visual-caption { margin: 0 0 13px; color: var(--green-900); font-weight: 800; text-align: center; }
.visual-flow { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; }
.visual-node { min-width: 105px; max-width: 180px; padding: 10px; border: 2px solid #7aa68e; border-radius: 10px; background: #fff; font-weight: 800; text-align: center; }
.visual-arrow { color: var(--green-700); font-size: 1.45rem; font-weight: 900; }
.structured-visual.is-arabic .visual-flow { direction: rtl; }
.structured-visual.is-arabic .visual-node,
.label-chips.is-arabic span { font-family: "Noto Sans Arabic", Tahoma, Arial, sans-serif; font-size: 1.45rem; line-height: 1.7; }
.visual-chart { display: grid; grid-template-columns: repeat(auto-fit, minmax(125px, 1fr)); gap: 9px; }
.visual-chart .visual-node { max-width: none; min-width: 0; }
.visual-timeline { display: grid; gap: 9px; counter-reset: visual-step; }
.visual-timeline .visual-node { position: relative; max-width: none; padding-inline-start: 45px; text-align: start; counter-increment: visual-step; }
.visual-timeline .visual-node::before { content: counter(visual-step); position: absolute; inset-inline-start: 10px; top: 8px; display: grid; width: 27px; height: 27px; place-items: center; border-radius: 50%; color: #fff; background: var(--green-700); }

.saved-item {
  margin: 11px 0;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.saved-item h3 { margin: 0 0 3px; font-size: 1rem; }
.saved-meta { margin: 0 0 9px; color: var(--muted); font-size: .82rem; }
.saved-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.saved-actions .button { min-height: 40px; padding: 7px 11px; font-size: .84rem; }

.premium-card { border: 2px solid #e2bd62; background: #fffbef; }
.price { margin: 6px 0; color: var(--green-800); font-size: 1.8rem; font-weight: 900; }
.price span { color: var(--muted); font-size: .95rem; font-weight: 600; }
.price #premiumPrice { color: var(--green-800); font-size: 1.8rem; font-weight: 900; }
.feature-list { padding-inline-start: 23px; }
.feature-list li { margin: 6px 0; }
.support-link { color: var(--green-800); font-weight: 800; }
details summary { min-height: 44px; padding: 8px 0; }

.policy-card h2 { margin-top: 22px; color: var(--green-800); font-size: 1.15rem; }
.footer { padding: 12px; color: var(--muted); text-align: center; font-size: .86rem; }
.hidden { display: none !important; }
.copy-fallback { position: fixed; inset: 0 auto auto 0; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

[dir="rtl"] { text-align: right; }

@media (max-width: 620px) {
  .app-shell { padding: 11px; }
  .hero { padding: 24px 15px; border-radius: 19px; }
  .card { padding: 18px 15px; border-radius: 17px; }
  .mode-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mode-group { padding: 11px; }
  .two-columns, .feature-strip { grid-template-columns: 1fr; }
  .section-heading-row { display: block; }
  .quality-badge, .decision-badge, .ai-label { margin-top: 6px; }
  .form-actions .button { flex: 1; }
  .answer-actions .button { flex: 1 1 calc(50% - 10px); }
  .learning-actions { grid-template-columns: 1fr; }
  .answer-content { font-size: 1rem; }
  .answer-heading { font-size: 1.17rem; }
  .preferences .preference-select { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

@media print {
  body { background: #fff; }
  .app-shell { width: 100%; max-width: none; padding: 0; }
  .hero, #teacherStudio, .compact-card, .answer-actions, .review-note, .learning-coach, .illustration-card .answer-actions, #savedHeading, #savedWork, #clearSaved, .premium-card, #editorAccess, .policy-card, .footer { display: none !important; }
  .card { box-shadow: none; border: 0; padding: 0; }
  .answer-card, .illustration-card { display: block !important; break-inside: avoid; }
  .illustration-card.hidden { display: none !important; }
  .answer-heading { color: var(--green-900); background: var(--green-100); }
  .regenerate-section, .section-tools { display: none !important; }
}


/* R9 smart tool dashboard */
.hero { position: relative; overflow: hidden; }
.hero::after {
  content: "";
  position: absolute;
  width: 180px; height: 180px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 50%;
  inset-inline-end: -85px; top: -90px;
}
.mode-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.mode-tab {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  min-height: 62px;
  padding: 9px;
  text-align: start;
}
.tool-icon {
  display: inline-grid;
  place-items: center;
  width: 36px; height: 36px;
  border-radius: 11px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(13,65,43,.12);
  color: var(--green-900);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .02em;
}
.mode-tab.active .tool-icon { background: rgba(255,255,255,.94); }
.mode-group:nth-child(2) .mode-tab { background: var(--blue-100); color: var(--blue-800); }
.mode-group:nth-child(2) .mode-tab.active { background: var(--blue-800); color: #fff; }
.mode-group:nth-child(3) .mode-tab { background: var(--gold-100); color: var(--gold-800); }
.mode-group:nth-child(3) .mode-tab.active { background: var(--gold-800); color: #fff; }
.mode-group:nth-child(2) .tool-icon { color: var(--blue-800); }
.mode-group:nth-child(3) .tool-icon { color: var(--gold-800); }
@media (max-width: 680px) {
  .mode-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 390px) {
  .mode-tab { grid-template-columns: 32px minmax(0,1fr); min-height: 58px; font-size: .88rem; }
  .tool-icon { width: 31px; height: 31px; border-radius: 9px; font-size: .7rem; }
}


/* R10.4 Smart Home — calm, uncluttered, phone-first */
body { padding-bottom: 82px; }
.hero { padding: 18px 16px; border-radius: 22px; }
.hero h1 { margin: 4px 0 6px; font-size: clamp(2rem, 8vw, 3.2rem); line-height: 1.05; }
.hero > p:not(.eyebrow):not(.counter) { margin: 6px auto 12px; max-width: 560px; }
.hero-actions { gap: 8px; }
.counter { margin: 12px auto 0; }
.secondary-overview { display: none; }
.smart-home { margin: 14px 0; padding: 18px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.smart-home-copy h2 { margin: 2px 0 4px; font-size: clamp(1.35rem, 5vw, 1.9rem); }
.smart-home-copy p:last-child { margin: 0 0 14px; color: var(--muted); }
.smart-home-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.smart-start { min-height: 92px; padding: 14px; text-align: left; border: 1px solid var(--line); border-radius: 16px; background: #f8fbf9; color: var(--ink); }
.smart-start strong, .smart-start span { display: block; }
.smart-start strong { color: var(--green-900); font-size: 1.03rem; margin-bottom: 4px; }
.smart-start span { color: var(--muted); font-size: .9rem; line-height: 1.35; }
.smart-start:hover, .smart-start:focus-visible { background: var(--green-100); border-color: var(--green-700); }
.mode-groups { gap: 10px; }
.mode-group { padding: 12px; }
.mode-group h3 { margin: 0 0 8px; }
.mode-tabs { display: flex; overflow-x: auto; gap: 8px; padding-bottom: 4px; scroll-snap-type: x proximity; }
.mode-tab { flex: 0 0 auto; min-width: 116px; scroll-snap-align: start; }
.page-pins { position: fixed; z-index: 90; left: 50%; bottom: max(10px, env(safe-area-inset-bottom)); transform: translateX(-50%); display: grid; grid-template-columns: repeat(3,58px); gap: 8px; padding: 7px; background: rgba(255,255,255,.96); border: 1px solid var(--line); border-radius: 22px; box-shadow: 0 8px 28px rgba(13,65,43,.20); backdrop-filter: blur(8px); }
.page-pins button { height: 48px; border: 0; border-radius: 15px; background: var(--green-100); color: var(--green-900); font-size: 1.65rem; font-weight: 800; line-height: 1; }
.page-pins button:nth-child(2) { background: var(--green-800); color: white; }
.page-pins button:disabled { opacity: .35; }
@media (max-width: 520px) { .app-shell { padding: 10px; } .smart-home-grid { grid-template-columns: 1fr; } .smart-start { min-height: 72px; } .hero .eyebrow { font-size: .78rem; } }
@media print { .page-pins, .smart-home { display:none !important; } body { padding-bottom:0; } }


/* R10.4 Hierarchical Smart Home: decongested, drill-down navigation */
.hier-home { margin:14px 0; padding:18px; background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow); }
.hier-home h2 { margin:2px 0 4px; font-size:clamp(1.4rem,5vw,2rem); }
.home-help { color:var(--muted); margin:0 0 14px; }
.category-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
.category-door,.category-item { width:100%; text-align:left; border:1px solid var(--line); background:#fff; border-radius:16px; padding:15px; color:var(--ink); cursor:pointer; box-shadow:0 3px 12px rgba(20,91,59,.06); }
.category-door { min-height:104px; display:grid; grid-template-columns:42px 1fr; column-gap:10px; align-items:center; }
.category-door .door-icon { grid-row:1/3; width:40px; height:40px; border-radius:12px; display:grid; place-items:center; background:#e8f3ed; color:#145b3b; font-weight:800; }
.category-door strong { font-size:1.06rem; }
.category-door small,.category-item small { color:var(--muted); line-height:1.35; }
.visual-rule { margin:14px 0 0; padding:10px 12px; background:#f7faf8; border-radius:12px; color:var(--muted); font-size:.9rem; }
.category-window { position:fixed; inset:max(12px,env(safe-area-inset-top)) 10px calc(76px + env(safe-area-inset-bottom)) 10px; z-index:60; max-width:720px; margin:auto; overflow:auto; background:var(--paper); border:1px solid var(--line); border-radius:20px; box-shadow:0 18px 60px rgba(0,0,0,.22); padding:16px; }
.category-window-head { position:sticky; top:-16px; z-index:2; display:grid; grid-template-columns:44px 1fr 44px; gap:10px; align-items:center; background:var(--paper); padding:14px 0 10px; border-bottom:1px solid var(--line); margin-bottom:12px; }
.category-window-head h2,.category-window-head p { margin:0; }
.window-back,.window-close { width:44px; height:44px; border-radius:50%; border:1px solid var(--line); background:#fff; font-size:1.35rem; }
.category-items { display:grid; gap:10px; }
.category-item { display:flex; justify-content:space-between; align-items:center; gap:12px; min-height:66px; }
.category-item .item-copy { display:grid; gap:3px; }
.category-item .chevron { font-size:1.35rem; color:#145b3b; }
#teacherStudio.hidden { display:none !important; }
.page-pins { z-index:80 !important; }
@media (max-width:520px){ .category-grid{grid-template-columns:1fr 1fr}.category-door{min-height:96px;padding:12px}.category-window{inset:8px 8px calc(72px + env(safe-area-inset-bottom)) 8px}.visual-rule{font-size:.84rem} }
@media (max-width:360px){ .category-grid{grid-template-columns:1fr}.category-door{min-height:78px} }
@media print { .category-window,.hier-home{display:none!important} }


/* R10.5 phone containment: tools stack downward instead of extending sideways. */
.mode-tabs { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); overflow:visible; gap:9px; padding-bottom:0; scroll-snap-type:none; }
.mode-tab { width:100%; max-width:100%; min-width:0; box-sizing:border-box; }
.hero-actions,.form-actions,.answer-actions,.saved-actions { max-width:100%; box-sizing:border-box; }
@media (max-width:720px){
  .mode-tabs { grid-template-columns:1fr; overflow:visible; }
  .mode-tab { display:grid; grid-template-columns:38px minmax(0,1fr); min-height:58px; }
  .hero-actions,.form-actions,.answer-actions,.saved-actions { display:grid; grid-template-columns:1fr; width:100%; }
  .hero-actions .button,.form-actions .button,.answer-actions .button,.saved-actions .button { width:100%; max-width:100%; min-width:0; margin:0; }
  .category-grid { grid-template-columns:1fr; }
  .category-door,.category-item { width:100%; max-width:100%; min-width:0; }
}