@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,500;0,700;1,500&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,300&display=swap');


:root {
  --bg: #0E0810;
  --bg2: #160F19;
  --rose: #E8468C;
  --rose-dim: #C03070;
  --rose-pale: #2A1020;
  --violet: #9B5DE5;
  --violet-dim: #7040B0;
  --gold: #F7C948;
  --gold-dim: #C8A030;
  --cream: #F5EDD8;
  --text: #F0E8F0;
  --text-dim: #A898A8;
  --text-faint: #9C8296;
  --card: #1C1222;
  --card2: #221828;
  --border: #2E1E30;
  --border2: #3D2845;
  --green: #2EC4B6;
  --green-bg: #0E2020;
  --amber: #F7A048;
  --hero-glow: #2A0840;
  --r: 14px;
  --r2: 20px;
}

/* ── LIGHT THEME ── */
[data-theme="light"] {
  --bg: #FBF8FA;
  --bg2: #F3ECF3;
  --rose: #C2185B;
  --rose-dim: #9C1050;
  --rose-pale: #FBE4EE;
  --violet: #6A3FA0;
  --violet-dim: #55308A;
  --gold: #9C7300;
  --gold-dim: #7C5B00;
  --cream: #4A3A2E;
  --text: #241827;
  --text-dim: #5C4A60;
  --text-faint: #7A6580;
  --card: #FFFFFF;
  --card2: #F3ECF3;
  --border: #E5DCE8;
  --border2: #D8C6DE;
  --green: #147D74;
  --green-bg: #E3F7F5;
  --amber: #B8650C;
  --hero-glow: #F0DCEF;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
}

/* ── SIDEBAR NAV ── */
.sidenav {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 240px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  padding: 32px 20px;
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sidenav-logo {
  font-family: 'Playfair Display', serif;
  font-size: 15px;
  font-style: italic;
  color: var(--rose);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
}
.sidenav a {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 400;
  padding: 8px 12px;
  border-radius: 8px;
  transition: all 0.2s;
}
.sidenav a:hover, .sidenav a.active {
  background: var(--rose-pale);
  color: var(--rose);
}
.sidenav a .nav-num {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--border2);
  display: flex; align-items: center; justify-content: center;
  font-size: 9px;
  font-weight: 700;
  flex-shrink: 0;
  transition: all 0.2s;
}
.sidenav a:hover .nav-num, .sidenav a.active .nav-num {
  background: var(--rose);
  color: white;
}

/* ── MAIN ── */
.main {
  margin-left: 240px;
  min-height: 100vh;
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 60px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 70% 40%, var(--hero-glow) 0%, var(--bg) 70%);
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.hero-orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(155,93,229,0.18) 0%, transparent 70%);
  top: -100px; right: -100px;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(232,70,140,0.12) 0%, transparent 70%);
  bottom: -80px; left: 100px;
}
.hero-content { position: relative; z-index: 2; max-width: 640px; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rose);
  border: 1px solid rgba(232,70,140,0.3);
  padding: 6px 16px;
  border-radius: 20px;
  background: rgba(232,70,140,0.08);
  margin-bottom: 28px;
}
.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
}
.hero h1 em {
  font-style: italic;
  background: linear-gradient(135deg, var(--rose), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 40px;
  font-weight: 300;
}
.hero-sub strong { color: var(--cream); font-weight: 500; }
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--rose), var(--rose-dim));
  color: white;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  padding: 16px 32px;
  border-radius: 50px;
  box-shadow: 0 8px 32px rgba(232,70,140,0.35);
  transition: all 0.3s;
}
.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(232,70,140,0.5);
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.hero-stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--cream);
}
.hero-stat-label {
  font-size: 12px;
  color: var(--text-dim);
}

/* ── CHAPTER WRAPPER ── */
.chapter {
  padding: 80px 60px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.chapter-header {
  margin-bottom: 56px;
}
.chapter-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}
.badge-rose { background: rgba(232,70,140,0.12); color: var(--rose); border: 1px solid rgba(232,70,140,0.25); }
.badge-violet { background: rgba(155,93,229,0.12); color: var(--violet); border: 1px solid rgba(155,93,229,0.25); }
.badge-gold { background: rgba(247,201,72,0.12); color: var(--gold); border: 1px solid rgba(247,201,72,0.25); }
.badge-green { background: rgba(46,196,182,0.12); color: var(--green); border: 1px solid rgba(46,196,182,0.25); }

.chapter-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}
.chapter-title em {
  font-style: italic;
  color: var(--rose);
}
.chapter-intro {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 680px;
  font-weight: 300;
  margin-bottom: 12px;
}
.chapter-hook {
  display: inline-block;
  font-size: 15px;
  font-style: italic;
  color: var(--rose);
  margin-top: 4px;
}

/* ── CONTENT BLOCKS ── */
h2 {
  font-family: 'Playfair Display', serif;
  font-size: 24px;
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--cream);
}
h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 28px 0 12px;
  color: var(--text);
}
p {
  color: var(--text-dim);
  margin-bottom: 16px;
  line-height: 1.8;
}
p strong { color: var(--text); font-weight: 500; }

/* ── CARDS ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 28px 32px;
  margin: 20px 0;
}
.card-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.card-title.rose { color: var(--rose); }
.card-title.violet { color: var(--violet); }
.card-title.gold { color: var(--gold); }
.card-title.green { color: var(--green); }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 20px 0;
}
@media (max-width: 680px) { .grid-2 { grid-template-columns: 1fr; } }

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
  margin: 20px 0;
}
@media (max-width: 800px) { .grid-3 { grid-template-columns: 1fr; } }

/* ── ANATOMY CARDS ── */
.anatomy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
  margin: 24px 0;
}
.anatomy-card {
  background: var(--card2);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s;
}
.anatomy-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
}
.anatomy-card.rose::before { background: linear-gradient(90deg, var(--rose), var(--violet)); }
.anatomy-card.violet::before { background: linear-gradient(90deg, var(--violet), var(--green)); }
.anatomy-card.gold::before { background: linear-gradient(90deg, var(--gold), var(--amber)); }
.anatomy-card:hover { border-color: var(--rose); }
.anatomy-icon { font-size: 24px; margin-bottom: 10px; }
.anatomy-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 8px;
}
.anatomy-desc {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.65;
}
.anatomy-fun-fact {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--rose);
  font-style: italic;
}

/* ── TÉCNICA CARDS ── */
.technique-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 32px;
  margin: 20px 0;
  position: relative;
  overflow: hidden;
}
.technique-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
}
.technique-card.iniciante::after { background: linear-gradient(180deg, var(--green), #1A8C80); }
.technique-card.intermediario::after { background: linear-gradient(180deg, var(--violet), var(--violet-dim)); }
.technique-card.avancado::after { background: linear-gradient(180deg, var(--rose), var(--rose-dim)); }

.technique-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.technique-num {
  font-family: 'Playfair Display', serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-faint);
}
.technique-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--cream);
  flex: 1;
}
.level-badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
}
.level-badge.iniciante { background: rgba(46,196,182,0.12); color: var(--green); border: 1px solid rgba(46,196,182,0.3); }
.level-badge.intermediario { background: rgba(155,93,229,0.12); color: var(--violet); border: 1px solid rgba(155,93,229,0.3); }
.level-badge.avancado { background: rgba(232,70,140,0.12); color: var(--rose); border: 1px solid rgba(232,70,140,0.3); }

.technique-desc {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}
.steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}
.steps li {
  position: relative;
  padding-left: 38px;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}
.step-num {
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--card2);
  border: 1px solid var(--border2);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-faint);
}
.tip-box {
  background: rgba(247,201,72,0.06);
  border: 1px solid rgba(247,201,72,0.2);
  border-radius: var(--r);
  padding: 14px 18px;
  font-size: 13px;
  color: var(--gold-dim);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.tip-box .tip-icon { flex-shrink: 0; font-size: 16px; margin-top: 1px; }

/* ── CALLOUTS ── */
.callout {
  border-radius: var(--r);
  padding: 20px 24px;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.7;
  display: flex;
  gap: 14px;
}
.callout-icon { font-size: 20px; flex-shrink: 0; margin-top: 2px; }
.callout-body {}
.callout-body > strong:first-child { display: block; font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.callout.rose { background: rgba(232,70,140,0.08); border: 1px solid rgba(232,70,140,0.25); color: #E898C0; }
.callout.rose strong { color: var(--rose); }
.callout.violet { background: rgba(155,93,229,0.08); border: 1px solid rgba(155,93,229,0.25); color: #C0A0E8; }
.callout.violet strong { color: var(--violet); }
.callout.green { background: rgba(46,196,182,0.08); border: 1px solid rgba(46,196,182,0.25); color: #80D8D0; }
.callout.green strong { color: var(--green); }
.callout.gold { background: rgba(247,201,72,0.08); border: 1px solid rgba(247,201,72,0.25); color: #D8B848; }
.callout.gold strong { color: var(--gold); }
.callout.amber { background: rgba(247,160,72,0.08); border: 1px solid rgba(247,160,72,0.3); color: var(--amber); }
.callout.amber strong { color: var(--amber); }

/* ── QUIZ ── */
.quiz-section {
  background: linear-gradient(135deg, var(--card2), var(--card));
  border: 1px solid var(--border2);
  border-radius: var(--r2);
  padding: 40px;
  margin: 48px 0;
  position: relative;
  overflow: hidden;
}
.quiz-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--rose), var(--violet), var(--gold));
}
.quiz-title {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 6px;
}
.quiz-subtitle {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 32px;
  font-style: italic;
}
.quiz-q {
  margin-bottom: 28px;
}
.quiz-q-text {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 14px;
  line-height: 1.6;
}
.quiz-q-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--rose);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.quiz-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  padding: 12px 16px;
  border-radius: var(--r);
  border: 1px solid var(--border);
  background: var(--card);
  transition: all 0.2s;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.5;
}
.quiz-option:hover {
  border-color: var(--rose);
  background: rgba(232,70,140,0.06);
  color: var(--text);
}
.quiz-option input[type="radio"] {
  accent-color: var(--rose);
  margin-top: 3px;
  flex-shrink: 0;
}
.quiz-option.selected {
  border-color: var(--rose);
  background: rgba(232,70,140,0.1);
  color: var(--cream);
}
.quiz-option .opt-points {
  margin-left: auto;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-faint);
  flex-shrink: 0;
  padding-left: 10px;
}
.quiz-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--violet), var(--violet-dim));
  color: white;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 50px;
  margin-top: 20px;
  transition: all 0.2s;
  font-family: 'DM Sans', sans-serif;
}
.quiz-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(155,93,229,0.35);
}
.quiz-result {
  display: none;
  margin-top: 28px;
  padding: 28px;
  background: var(--bg2);
  border-radius: var(--r);
  border: 1px solid var(--border2);
}
.quiz-result.show { display: block; }
.quiz-result-score {
  font-family: 'Playfair Display', serif;
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 4px;
}
.quiz-result-label {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}
.quiz-result-desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
}
.quiz-progress {
  display: flex;
  gap: 6px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.quiz-progress-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border2);
  transition: background 0.2s;
}
.quiz-progress-dot.done { background: var(--rose); }

/* ── EXERCÍCIO PRÁTICO ── */
.exercise-section {
  background: linear-gradient(135deg, rgba(46,196,182,0.06), rgba(46,196,182,0.02));
  border: 1px solid rgba(46,196,182,0.2);
  border-radius: var(--r2);
  padding: 40px;
  margin: 40px 0;
  position: relative;
  overflow: hidden;
}
.exercise-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: linear-gradient(180deg, var(--green), var(--violet));
}
.exercise-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  border: 1px solid rgba(46,196,182,0.3);
  background: rgba(46,196,182,0.08);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.exercise-title {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 8px;
}
.exercise-goal {
  font-size: 14px;
  color: var(--green);
  margin-bottom: 20px;
  font-weight: 500;
}
.exercise-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.exercise-steps li {
  position: relative;
  padding-left: 40px;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.65;
}
.exercise-steps .enum {
  position: absolute;
  left: 0;
  top: 1px;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: rgba(46,196,182,0.12);
  border: 1px solid rgba(46,196,182,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--green);
}
.exercise-note-area {
  margin-top: 24px;
  padding: 16px;
  background: var(--bg2);
  border-radius: var(--r);
  border: 1px solid var(--border);
}
.exercise-note-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 10px;
}
.exercise-note-area textarea {
  width: 100%;
  min-height: 80px;
  background: transparent;
  border: none;
  outline: none;
  resize: vertical;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
  font-family: 'DM Sans', sans-serif;
}
.exercise-note-area textarea::placeholder { color: var(--text-faint); }

/* ── BLOCKQUOTE ── */
blockquote {
  border-left: 3px solid var(--rose);
  padding: 4px 0 4px 24px;
  margin: 28px 0;
}
blockquote p {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-size: 19px;
  color: var(--cream);
  margin: 0;
}
blockquote cite {
  display: block;
  font-size: 12px;
  color: var(--rose);
  margin-top: 8px;
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0.06em;
}

/* ── DIVISOR ── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

/* ── HIGHLIGHT STAT ── */
.stat-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin: 24px 0;
}
.stat-box {
  flex: 1;
  min-width: 140px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 20px;
  text-align: center;
}
.stat-box-num {
  font-family: 'Playfair Display', serif;
  font-size: 30px;
  font-weight: 700;
  color: var(--rose);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-box-label {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ── CAPÍTULO INTRO FULL ── */
.chapter-intro-full {
  background: linear-gradient(135deg, var(--card2), var(--card));
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 48px;
  margin-bottom: 40px;
  display: flex;
  gap: 40px;
  align-items: center;
}
.chapter-intro-num {
  font-family: 'Playfair Display', serif;
  font-size: 80px;
  font-weight: 700;
  line-height: 1;
  color: var(--border2);
  flex-shrink: 0;
}
.chapter-intro-body {}
.chapter-intro-body .eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rose);
  margin-bottom: 10px;
}
.chapter-intro-body h2 {
  margin: 0 0 12px;
  font-size: 28px;
}
.chapter-intro-body p {
  font-size: 15px;
  margin: 0;
}

/* ── CHECKLIST VISUAL ── */
.visual-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.visual-checklist li {
  position: relative;
  padding-left: 32px;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}
.visual-checklist .vcheck {
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px; height: 20px;
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px;
}
.vcheck-ok { background: rgba(46,196,182,0.12); color: var(--green); }
.vcheck-warn { background: rgba(247,160,72,0.12); color: var(--amber); }
.vcheck-rose { background: rgba(232,70,140,0.12); color: var(--rose); }

/* ── TABLE OF CONTENTS ── */
.toc-chapter-item { list-style: none; }
.toc-chapter-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.toc-chapter-row .toc-chapter-link { flex: 1; }
.toc-expand-btn {
  background: var(--card2);
  border: 1px solid var(--border2);
  color: var(--text-dim);
  border-radius: 8px;
  width: 30px; height: 30px;
  flex-shrink: 0;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}
.toc-expand-btn:hover { background: var(--rose-pale); color: var(--rose); }
.toc-expand-btn.open { transform: rotate(180deg); }
.toc-sub-list {
  display: none;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 4px;
  padding: 10px 0 6px 20px;
}
.toc-sub-list.open { display: grid; }
.toc-sub-list a.toc-sub-link {
  display: block;
  font-size: 12.5px;
  color: var(--text-dim);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 8px;
  transition: all 0.15s;
}
.toc-sub-list a.toc-sub-link:hover { background: var(--rose-pale); color: var(--rose); }
.toc-sub-list a.toc-sub-link strong { color: var(--rose); }

/* ── SIDENAV TECHNIQUE SUBLISTS ── */
.nav-chapter-item { display: flex; flex-direction: column; }
.nav-chapter-row {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-chapter-row .nav-chapter-link { flex: 1; }
.nav-expand-btn {
  background: none;
  border: none;
  color: var(--text-faint);
  cursor: pointer;
  font-size: 11px;
  padding: 6px;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.nav-expand-btn.open { transform: rotate(180deg); }
.nav-sub-list {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 2px 0 6px 0;
}
.nav-sub-list.open { display: flex; }
.nav-sub-list a.nav-sub-link {
  display: block;
  font-size: 11.5px;
  color: var(--text-faint);
  text-decoration: none;
  padding: 5px 10px 5px 40px;
  border-radius: 6px;
  transition: all 0.15s;
}
.nav-sub-list a.nav-sub-link:hover { background: var(--rose-pale); color: var(--rose); }
.toc {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 36px;
  margin: 48px 0;
}
.toc-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 20px;
}
.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.toc-list li a {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  padding: 10px 14px;
  border-radius: var(--r);
  color: var(--text-dim);
  font-size: 14px;
  transition: all 0.2s;
}
.toc-list li a:hover {
  background: var(--rose-pale);
  color: var(--rose);
}
.toc-list li a .toc-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-faint);
  width: 28px;
  flex-shrink: 0;
}
.toc-list li a .toc-badge {
  margin-left: auto;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
}

/* ── PROGRESS BAR ── */
.reading-progress {
  position: fixed;
  top: 0; left: 240px; right: 0;
  height: 3px;
  background: var(--border);
  z-index: 300;
}
.reading-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--rose), var(--violet));
  width: 0%;
  transition: width 0.1s;
}
.progress-badge {
  position: fixed;
  top: 10px;
  right: 16px;
  background: var(--card2);
  border: 1px solid var(--border2);
  color: var(--rose);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 11px;
  border-radius: 20px;
  z-index: 300;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
  letter-spacing: 0.02em;
}
.xp-badge {
  color: var(--gold) !important;
  border-color: rgba(247,201,72,0.3) !important;
}
.theme-toggle-btn {
  position: fixed;
  top: 9px;
  left: 256px;
  background: var(--card2);
  border: 1px solid var(--border2);
  color: var(--text-dim);
  font-size: 15px;
  width: 32px; height: 32px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 300;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}
.theme-toggle-btn:hover { border-color: var(--rose); color: var(--rose); }
@media (min-width: 901px) and (max-width: 1180px) {
  .theme-toggle-btn { left: 216px; }
}
@media (max-width: 900px) {
  .theme-toggle-btn { left: 12px; top: 9px; width: 28px; height: 28px; font-size: 13px; }
}
@media (max-width: 900px) {
  .progress-badge { top: 9px; right: 12px; font-size: 10px; padding: 4px 9px; }
  .xp-badge { top: 38px; }
}

/* ── MOBILE ── */
@media (max-width: 900px) {
  .sidenav {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    width: 82%;
    max-width: 300px;
    box-shadow: 4px 0 40px rgba(0,0,0,0.5);
  }
  .sidenav.open { transform: translateX(0); z-index: 155; }
  #sidenavCloseBtn { display: block !important; }
  .main { margin-left: 0; }
  .reading-progress { left: 0; }
  .chapter { padding: 40px 20px; }
  .hero { padding: 60px 20px; min-height: auto; padding-top: 90px; }
  .chapter-intro-full { flex-direction: column; gap: 16px; padding: 24px; }
  .chapter-intro-num { font-size: 44px; }
  .quiz-section, .exercise-section { padding: 20px; }
  .toc-list li a { padding: 12px 10px; font-size: 14px; }
  .quiz-option { padding: 14px 16px; }
  h2 { font-size: clamp(24px, 6vw, 32px) !important; }
  .technique-name { font-size: 15px !important; }
}

.mobile-nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 150;
}
.mobile-nav-backdrop.open { display: block; }

.mobile-menu-btn {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 20px;
  width: 54px; height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--rose), var(--violet));
  color: white;
  border: none;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 6px 24px rgba(232,70,140,0.45);
  z-index: 160;
  cursor: pointer;
}
.mobile-menu-btn:active { transform: scale(0.94); }

@media (max-width: 900px) {
  .mobile-menu-btn { display: flex; }
}

/* ── TABLET REFINEMENT ── */
@media (min-width: 901px) and (max-width: 1180px) {
  .sidenav { width: 200px; }
  .main { margin-left: 200px; }
  .reading-progress { left: 200px; }
  .chapter { padding: 56px 32px; }
  #resetProgressBtn { left: 220px !important; }
}
@media (max-width: 900px) {
  #resetProgressBtn { left: 20px !important; bottom: 90px !important; }
}

.technique-header{ align-items:center; }
.tech-done-btn,.ex-done-btn{ display:inline-flex; align-items:center; gap:9px; cursor:pointer; background:var(--card2);
  color:var(--text-dim); border:1px solid var(--border2); border-radius:999px; padding:8px 14px;
  font-family:'DM Sans',sans-serif; font-size:12.5px; font-weight:600; transition:all .18s ease; white-space:nowrap; }
.technique-header .technique-name{ flex:0 1 auto; } .tech-done-btn{ margin-left:2px; }
.tech-done-btn:hover,.ex-done-btn:hover{ border-color:var(--green); color:var(--text); }
.tech-done-btn .tdb-check,.ex-done-btn .edb-check{ width:18px; height:18px; border-radius:50%; display:grid; place-items:center;
  border:2px solid var(--border2); font-size:11px; color:transparent; transition:all .18s ease; }
.tech-done-btn .tdb-xp,.ex-done-btn .edb-xp{ font-size:11px; color:var(--gold); font-weight:700; }
.tech-done-btn.done,.ex-done-btn.done{ background:var(--green-bg); border-color:var(--green); color:var(--green); }
.tech-done-btn.done .tdb-check,.ex-done-btn.done .edb-check{ background:var(--green); border-color:var(--green); color:#04201c; }
.ex-done-wrap{ margin-top:20px; }
.technique-card{ position:relative; }

/* chapter gating */
.chapter.locked-chap > *:not(.chap-lock-banner){ display:none !important; }
.chap-lock-banner{ display:flex; flex-direction:column; align-items:center; text-align:center; gap:10px;
  padding:56px 26px; background:linear-gradient(180deg, var(--card) 0%, var(--card2) 100%);
  border:1px solid var(--border2); border-radius:var(--r2); box-shadow:0 8px 40px -24px var(--hero-glow); }
.chap-lock-banner .clb-ic{ font-size:44px; filter:drop-shadow(0 6px 16px rgba(0,0,0,.5)); }
.chap-lock-banner .clb-title{ font-family:'Playfair Display',serif; font-size:22px; font-weight:800; color:var(--cream); }
.chap-lock-banner .clb-sub{ font-size:13.5px; color:var(--text-dim); max-width:440px; line-height:1.6; }
.chap-lock-banner .clb-tasks{ display:flex; flex-wrap:wrap; gap:8px; justify-content:center; margin-top:6px; }
.chap-lock-banner .clb-task{ font-size:11.5px; font-weight:600; padding:5px 11px; border-radius:999px; border:1px solid var(--border2); color:var(--text-faint); }
.chap-lock-banner .clb-task.ok{ color:var(--green); border-color:var(--green); background:var(--green-bg); }

.journey-card{ display:flex; align-items:center; gap:20px; flex-wrap:wrap;
  background:linear-gradient(135deg, var(--card) 0%, var(--card2) 100%); border:1px solid var(--border2);
  border-radius:var(--r2); padding:24px 26px; margin-bottom:26px; box-shadow:0 8px 40px -20px var(--hero-glow); }
.jc-avatar{ width:70px; height:70px; border-radius:50%; display:grid; place-items:center; font-size:34px;
  background:radial-gradient(circle at 30% 30%, var(--violet) 0%, var(--rose-dim) 100%); box-shadow:0 0 30px -6px var(--rose); flex-shrink:0; }
.jc-main{ flex:1; min-width:220px; }
.jc-title-row{ display:flex; justify-content:space-between; align-items:baseline; gap:10px; margin-bottom:10px; flex-wrap:wrap; }
.jc-title{ font-family:'Playfair Display',serif; font-size:24px; font-weight:800; color:var(--cream); }
.jc-pct{ font-size:13px; font-weight:700; color:var(--gold); }
.jc-xpbar{ height:12px; background:var(--bg); border:1px solid var(--border2); border-radius:999px; overflow:hidden; }
.jc-xpfill{ height:100%; width:0%; border-radius:999px; background:linear-gradient(90deg, var(--green), var(--violet), var(--rose)); transition:width .5s ease; }
.jc-xp-row{ display:flex; justify-content:space-between; margin-top:8px; font-size:12px; color:var(--text-faint); }

.gems-title,.trail-title{ font-family:'Playfair Display',serif; font-size:19px; font-weight:800; color:var(--cream); margin:6px 0 6px; }
.gems-sub,.trail-sub{ font-family:'DM Sans',sans-serif; font-size:13px; font-weight:400; color:var(--text-faint); }
.gems-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:12px; margin:12px 0 8px; }
.gem{ background:var(--card); border:1px solid var(--border); border-radius:var(--r); padding:16px 12px; text-align:center; opacity:.5; filter:grayscale(.65); transition:all .28s ease; }
.gem.unlocked{ opacity:1; filter:none; border-color:var(--border2); box-shadow:0 6px 26px -16px #fff; }
.gem-ic-wrap{ position:relative; width:48px; height:48px; margin:0 auto 10px; }
.gem-ic{ position:relative; width:48px; height:48px; clip-path:polygon(50% 0,85% 25%,100% 60%,50% 100%,0 60%,15% 25%); }
.gem-ic::before{ content:''; position:absolute; inset:0; clip-path:polygon(50% 0,85% 25%,50% 46%,15% 25%); background:rgba(255,255,255,.4); }
.gem-ic.locked-gem{ background:linear-gradient(150deg,#3a3040,#221826); }
.gem-lock{ position:absolute; inset:0; display:grid; place-items:center; font-size:18px; }
.gem .g-name{ display:block; font-size:13px; font-weight:700; color:var(--cream); line-height:1.3; }
.gem .g-desc{ display:block; font-size:11px; color:var(--text-faint); margin-top:3px; line-height:1.4; }

.trail-title{ margin-top:30px; }
.trail-hint{ font-size:13px; color:var(--text-dim); margin-bottom:16px; }
.trail-chips{ display:flex; flex-wrap:wrap; gap:8px; }
.trail-chip{ display:inline-flex; align-items:center; gap:7px; text-decoration:none; background:var(--card);
  border:1px solid var(--border2); border-radius:999px; padding:7px 13px; font-size:12px; color:var(--text-dim); transition:all .16s ease; }
.trail-chip:hover{ border-color:var(--rose); color:var(--text); transform:translateY(-1px); }
.trail-chip .tc-num{ font-family:'Playfair Display',serif; font-weight:700; color:var(--text-faint); font-size:11px; }
.trail-chip .tc-name{ white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:180px; }
.trail-chip .tc-done,.trail-chip .tc-lock{ opacity:0; width:0; overflow:hidden; transition:all .15s; }
.trail-chip .tc-done{ color:var(--green); font-weight:800; }
.trail-chip.done{ background:var(--green-bg); border-color:var(--green); color:var(--green); }
.trail-chip.done .tc-num{ color:var(--green); } .trail-chip.done .tc-done{ opacity:1; width:auto; }
.trail-chip.next{ border-color:var(--gold); box-shadow:0 0 0 3px rgba(247,201,72,.15); }
.trail-chip.next::after{ content:'próxima'; font-size:9px; font-weight:800; text-transform:uppercase; letter-spacing:.06em; color:var(--gold); margin-left:2px; }
.trail-chip.locked{ pointer-events:none; opacity:.55; }
.trail-chip.locked .tc-name{ filter:blur(3px); }
.trail-chip.locked .tc-lock{ opacity:1; width:auto; }

.journey-reset{ margin-top:26px; text-align:center; }
.jreset-btn{ background:transparent; border:1px solid var(--border2); color:var(--text-faint); border-radius:999px; padding:8px 18px; font-size:12px; cursor:pointer; transition:all .16s ease; }
.jreset-btn:hover{ border-color:var(--rose-dim); color:var(--rose); }

#xpToast{ position:fixed; left:50%; bottom:30px; transform:translateX(-50%) translateY(30px); background:var(--card2);
  border:1px solid var(--gold-dim); color:var(--cream); padding:12px 22px; border-radius:999px; font-weight:700; font-size:14px;
  z-index:9999; opacity:0; pointer-events:none; transition:all .35s cubic-bezier(.2,.9,.3,1.3); box-shadow:0 10px 40px -12px var(--gold); max-width:88vw; text-align:center; }
#xpToast.show{ opacity:1; transform:translateX(-50%) translateY(0); }
#xpToast.big{ border-color:var(--rose); box-shadow:0 10px 44px -10px var(--rose); }
@media(max-width:640px){ .trail-chip .tc-name{ max-width:120px; } .tech-done-btn .tdb-label{ display:none; } .tech-done-btn{ padding:8px 12px; } }

.hero{ justify-content: space-between; gap: clamp(24px,4vw,56px); align-items:center; }
.hero-content{ flex:1 1 420px; max-width:660px; }
.hero-cover{ position:relative; z-index:2; flex:0 0 auto; align-self:center;
  width: clamp(340px, 44vw, 620px); height: min(90vh, 860px);
  object-fit:cover; object-position:center 20%; border-radius:26px;
  box-shadow:0 44px 120px -30px rgba(232,70,140,.60), 0 0 0 1px var(--border2); }
@media (max-width: 1024px){
  .hero{ flex-direction:column; align-items:stretch; padding-left:40px; padding-right:40px; }
  .hero-content{ order:2; flex:none; max-width:none; }
  .hero-cover{ order:1; width:100%; height:clamp(300px, 48vh, 480px); align-self:auto;
    object-position:center 22%; margin-bottom:6px; }
}
@media (max-width: 560px){
  .hero{ padding:64px 22px 48px; }
  .hero-cover{ height:clamp(260px, 44vh, 400px); border-radius:18px; }
}

.item-locked{ position:relative; overflow:hidden; }
.item-locked > *:not(.lock-overlay){ filter:blur(6px); opacity:.3; pointer-events:none; user-select:none; }
.lock-overlay{ position:absolute; inset:0; display:grid; place-items:center; z-index:6;
  background:linear-gradient(180deg, rgba(22,15,25,.74), rgba(14,8,16,.84)); border-radius:inherit; }
.lock-overlay .lo-inner{ text-align:center; padding:24px; }
.lock-overlay .lo-ic{ font-size:34px; filter:drop-shadow(0 4px 14px rgba(0,0,0,.5)); }
.lock-overlay .lo-msg{ margin-top:10px; font-size:13px; font-weight:700; color:var(--text); }
.lock-overlay .lo-sub{ margin:4px auto 0; font-size:12px; color:var(--text-faint); max-width:340px; line-height:1.5; }
#resetProgressBtn{ display:none !important; }
.tech-done-btn.done,.ex-done-btn.done{ pointer-events:none; cursor:default; }
.quiz-answered .quiz-option{ pointer-events:none; }
.quiz-answered button{ pointer-events:none; opacity:.5; cursor:default; }

.tech-done-wrap, .ex-done-wrap{ margin-top:22px; display:flex; justify-content:center; }
.tech-done-btn, .ex-done-btn{ display:inline-flex; align-items:center; gap:10px; cursor:pointer;
  background:linear-gradient(135deg, var(--rose), var(--rose-dim)); color:#fff; border:none; margin-left:0;
  font-family:'DM Sans',sans-serif; font-size:14px; font-weight:700; padding:14px 28px; border-radius:50px;
  transition:all .2s; box-shadow:0 10px 26px -12px var(--rose); white-space:normal; }
.tech-done-btn:hover, .ex-done-btn:hover{ transform:translateY(-2px); box-shadow:0 14px 32px -10px var(--rose); filter:brightness(1.06); color:#fff; }
.tech-done-btn .tdb-check, .ex-done-btn .edb-check{ width:20px; height:20px; border-radius:50%; display:grid; place-items:center;
  border:2px solid rgba(255,255,255,.65); font-size:12px; color:transparent; transition:all .18s; }
.tech-done-btn .tdb-xp, .ex-done-btn .edb-xp{ font-size:12px; color:#fff; font-weight:800; background:rgba(255,255,255,.20); padding:3px 9px; border-radius:20px; }
.tech-done-btn.done, .ex-done-btn.done{ background:linear-gradient(135deg, var(--green), #1a9e91); color:#04231e !important; box-shadow:0 10px 26px -12px var(--green); pointer-events:none; cursor:default; }
.tech-done-btn.done .tdb-check, .ex-done-btn.done .edb-check{ background:#fff; border-color:#fff; color:#0a6b60; }
@media(max-width:640px){ .tech-done-btn .tdb-label, .ex-done-btn .edb-label{ display:inline !important; } .tech-done-btn, .ex-done-btn{ padding:13px 22px; font-size:13px; } }
.quiz-btn{ display:flex !important; width:fit-content; margin:20px auto 0 !important; }
.tdb-xp, .edb-xp{ display:none !important; }
.opt-points{ display:none !important; }
.hero-author{ font-family:'DM Sans',sans-serif; font-size:15px; letter-spacing:.04em; color:var(--text-dim); margin:4px 0 20px; }
.hero-author span{ font-family:'Playfair Display',serif; font-style:italic; font-weight:600; color:var(--gold); }

/* ══════ PWA: botão instalar + modal iOS ══════ */
#pwaInstall{ position:fixed; left:50%; bottom:22px; transform:translateX(-50%) translateY(40px); z-index:9998;
  align-items:center; gap:9px; background:linear-gradient(135deg,var(--rose),var(--violet)); color:#fff; border:none;
  border-radius:50px; padding:13px 24px; font-family:'DM Sans',sans-serif; font-size:14px; font-weight:700;
  box-shadow:0 14px 36px -10px rgba(232,70,140,.6); cursor:pointer; display:none; opacity:0;
  transition:all .4s cubic-bezier(.2,.9,.3,1.2); }
#pwaInstall.show{ display:inline-flex; opacity:1; transform:translateX(-50%) translateY(0); }
#pwaModal{ position:fixed; inset:0; z-index:9999; display:none; align-items:center; justify-content:center;
  background:rgba(0,0,0,.62); padding:24px; }
#pwaModal.show{ display:flex; }
#pwaModal .pm-box{ background:var(--card); border:1px solid var(--border2); border-radius:18px; padding:26px 24px;
  max-width:340px; text-align:center; }
#pwaModal .pm-box h3{ font-family:'Playfair Display',serif; color:var(--cream); margin:0 0 10px; font-size:20px; }
#pwaModal .pm-box p{ font-size:14px; color:var(--text-dim); line-height:1.65; margin:0; }
#pwaModal .pm-box button{ margin-top:18px; background:var(--rose); color:#fff; border:none; border-radius:40px;
  padding:10px 24px; font-weight:700; cursor:pointer; font-family:'DM Sans',sans-serif; }

/* ══════ Acessibilidade (P8) ══════ */
:where(a, button, [tabindex], input, textarea, label.quiz-option):focus-visible{
  outline:3px solid var(--gold); outline-offset:3px; border-radius:6px;
}
.skip-link{ position:absolute; left:-9999px; top:0; z-index:10000; background:var(--rose); color:#fff;
  padding:12px 20px; border-radius:0 0 10px 0; font-family:'DM Sans',sans-serif; font-weight:700; text-decoration:none; }
.skip-link:focus{ left:0; }
.sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden;
  clip:rect(0 0 0 0); white-space:nowrap; border:0; }

/* conteúdo bloqueado: o desfoque é visual; o app marca aria-hidden/inert
   nos filhos para que leitores de tela e teclado não os alcancem. */
.item-locked [inert]{ pointer-events:none; }

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{ animation-duration:.001ms !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}