/* ============================================================
   P-A.2 · El príncipe de Maquiavelo
   Línea P · Pensamiento clásico aplicado
   Paleta: vino tinto profundo + dorado apagado + gris pizarra
   ============================================================ */

:root {
  /* Vino tinto principal */
  --p-wine-dark: #5a1116;       /* vino profundo */
  --p-wine: #8b1a1a;             /* vino principal */
  --p-wine-light: #a8484b;       /* vino claro */
  --p-wine-pale: #f5e9e9;        /* vino muy pálido */

  /* Dorado renacentista */
  --p-gold-dark: #8a6324;        /* dorado profundo */
  --p-gold: #b88a3c;              /* dorado principal */
  --p-gold-light: #d4b066;        /* dorado claro */
  --p-gold-pale: #f9f1de;         /* dorado pálido fondo */

  /* Grises pizarra */
  --p-slate-dark: #2a2826;        /* casi negro cálido */
  --p-slate: #3a3a3a;
  --p-slate-soft: #6a6360;
  --p-slate-faint: #998f88;

  /* Fondos */
  --bg: #faf8f4;                  /* blanco hueso */
  --bg-soft: #f3eee5;             /* crema sutil */
  --rule: #e8e0d0;                /* línea divisoria */

  /* Estados */
  --success: #5d7a3e;             /* verde oliva */
  --error: #8b1a1a;               /* vino para errores */

  --shadow-sm: 0 2px 8px rgba(90, 17, 22, 0.08);
  --shadow-md: 0 4px 16px rgba(90, 17, 22, 0.12);
  --radius: 10px;
}

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

body {
  font-family: 'Lato', -apple-system, sans-serif;
  color: var(--p-slate-dark);
  background: var(--bg);
  line-height: 1.65;
  font-weight: 400;
  overflow-x: hidden;
}

button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img, svg { max-width: 100%; display: block; }

/* ==================== LAYOUT ==================== */

.main-wrap {
  margin-left: 320px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==================== SIDEBAR ==================== */

.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: 320px;
  height: 100vh;
  background: var(--p-slate-dark);
  color: #e8e0d0;
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px 0;
}

.sidebar-search, .sidebar-close {
  width: 36px; height: 36px;
  border-radius: 50%;
  color: #e8e0d0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.sidebar-search:hover, .sidebar-close:hover { background: rgba(255, 255, 255, 0.08); }
.sidebar-search svg { width: 18px; height: 18px; }
.sidebar-close { font-size: 24px; display: none; }

.sidebar-brand {
  padding: 16px 24px 24px;
  border-bottom: 1px solid rgba(184, 138, 60, 0.25);
}

.brand-logo {
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.2em;
  color: var(--p-gold-light);
  margin-bottom: 8px;
}

.sidebar-title {
  font-size: 21px;
  font-weight: 900;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.sidebar-subtitle {
  font-size: 13px;
  font-weight: 400;
  font-style: italic;
  color: var(--p-gold-light);
  margin-bottom: 14px;
}

.sidebar-divider {
  width: 42px;
  height: 2px;
  background: var(--p-gold);
  margin: 12px 0;
}

.sidebar-progress-label {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--p-gold-light);
}
.sidebar-progress-label span {
  color: #fff;
  font-size: 17px;
  margin-right: 4px;
}

.lesson-nav {
  padding: 16px 0;
  flex: 1;
}

.lesson-link {
  width: 100%;
  text-align: left;
  padding: 13px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(232, 224, 208, 0.7);
  font-size: 12.5px;
  font-weight: 400;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}
.lesson-link:hover { background: rgba(255, 255, 255, 0.04); color: #fff; }
.lesson-link.active {
  background: rgba(184, 138, 60, 0.1);
  border-left-color: var(--p-gold);
  color: #fff;
  font-weight: 700;
}

.lesson-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: inherit;
}
.lesson-label { flex: 1; line-height: 1.3; }
.lesson-status {
  width: 17px; height: 17px;
  border-radius: 50%;
  border: 1.5px solid rgba(232, 224, 208, 0.35);
  flex-shrink: 0;
}
.lesson-link.completed .lesson-status {
  background: var(--p-gold);
  border-color: var(--p-gold);
  position: relative;
}
.lesson-link.completed .lesson-status::after {
  content: "✓";
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: var(--p-slate-dark);
  font-size: 11px;
  font-weight: 900;
}

/* ==================== TOPBAR ==================== */

.topbar {
  height: 60px;
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  padding: 0 32px;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}
.menu-btn {
  display: none;
  width: 36px; height: 36px;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: 8px;
}
.menu-btn span { display: block; width: 20px; height: 2px; background: var(--p-slate-dark); }
.topbar-count {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--p-slate-faint);
  letter-spacing: 0.08em;
}

/* ==================== CONTENT ==================== */

.content {
  flex: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 48px 80px;
  width: 100%;
}

.lesson { display: none; }
.lesson.active { display: block; animation: fadeIn 0.4s; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==================== COVER (Lesson 0) ==================== */

.cover {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 32px;
  min-height: 440px;
  display: flex;
  align-items: center;
}
.cover-bg {
  position: absolute; inset: 0; z-index: 0;
}
.cover-bg svg {
  width: 100%; height: 100%;
}
.cover-content {
  position: relative;
  z-index: 1;
  padding: 56px 48px;
  color: var(--bg);
  max-width: 65%;
}
.cover-logo {
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.22em;
  color: var(--p-gold-light);
  margin-bottom: 24px;
}
.cover-title {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: #fff;
}
.cover-subtitle-italic {
  font-size: 24px;
  font-style: italic;
  color: var(--p-gold-light);
  margin-bottom: 32px;
  font-weight: 300;
}
.cover-desc {
  font-size: 15px;
  line-height: 1.55;
  margin-bottom: 32px;
  opacity: 0.95;
  max-width: 460px;
}
.cover-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--p-gold);
  color: var(--p-slate-dark);
  padding: 14px 32px;
  border-radius: 4px;
  font-size: 12.5px;
  font-weight: 900;
  letter-spacing: 0.1em;
  transition: all 0.2s;
}
.cover-btn:hover {
  background: var(--p-gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(184, 138, 60, 0.4);
}

/* Meta cards */
.meta-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}
.meta-card {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--rule);
}
.meta-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--p-wine);
  color: var(--p-gold-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 700;
  flex-shrink: 0;
}
.meta-value {
  font-size: 15px;
  font-weight: 900;
  color: var(--p-slate-dark);
}
.meta-label {
  font-size: 11px;
  color: var(--p-slate-faint);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.objective-block {
  background: var(--p-gold-pale);
  border-left: 4px solid var(--p-gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 22px 28px;
  margin-bottom: 24px;
}
.objective-label {
  font-size: 10.5px;
  font-weight: 900;
  letter-spacing: 0.16em;
  color: var(--p-gold-dark);
  margin-bottom: 8px;
}
.objective-text {
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--p-slate-dark);
}

.results-block { margin-bottom: 24px; }
.results-title {
  font-size: 14px;
  font-weight: 900;
  margin-bottom: 14px;
  color: var(--p-slate-dark);
  letter-spacing: 0.02em;
}
.results-list {
  list-style: none;
  padding: 0;
}
.results-list li {
  position: relative;
  padding-left: 26px;
  padding-bottom: 10px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--p-slate);
}
.results-list li::before {
  content: "·";
  position: absolute;
  left: 6px;
  top: -3px;
  color: var(--p-gold);
  font-weight: 900;
  font-size: 24px;
}

.warning-statement {
  background: var(--p-wine-dark);
  color: var(--p-gold-light);
  padding: 22px 28px;
  border-radius: var(--radius);
  font-style: italic;
  font-size: 16px;
  margin-bottom: 28px;
  text-align: center;
  border-top: 2px solid var(--p-gold);
  border-bottom: 2px solid var(--p-gold);
}

/* ==================== LESSON HEADER ==================== */

.lesson-header { margin-bottom: 28px; }
.lesson-counter {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--p-wine);
  letter-spacing: 0.14em;
  margin-bottom: 8px;
}
.lesson-title {
  font-size: 36px;
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--p-slate-dark);
  margin-bottom: 12px;
}
.lesson-title em {
  font-style: italic;
  font-weight: 400;
  color: var(--p-wine);
}
.lesson-underline {
  width: 48px;
  height: 3px;
  background: var(--p-gold);
}

/* ==================== INSTRUCTION CALLOUT ==================== */

.instruction-callout {
  background: var(--p-gold-pale);
  border-left: 3px solid var(--p-gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 14px 18px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}
.instruction-callout .inst-icon {
  width: 26px; height: 26px;
  flex-shrink: 0;
  margin-top: -2px;
  color: var(--p-gold-dark);
}
.instruction-callout p {
  font-size: 13.5px;
  color: var(--p-slate);
  line-height: 1.5;
}
.instruction-callout em {
  font-style: normal;
  font-weight: 900;
  color: var(--p-gold-dark);
}

/* ==================== AUDIO PILL ==================== */

.audio-pill {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 40px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}
.audio-wave {
  width: 34px; height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--p-wine);
}
.audio-wave .ico-wave { width: 22px; height: 22px; }
.audio-play {
  width: 40px; height: 40px;
  background: var(--p-wine);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.audio-play:hover { background: var(--p-wine-dark); }
.audio-play .ico-play, .audio-play .ico-pause { width: 13px; height: 13px; }
.audio-play .ico-pause { display: none; }
.audio-pill.playing .audio-play .ico-play { display: none; }
.audio-pill.playing .audio-play .ico-pause { display: block; }

.audio-track {
  flex: 1;
  height: 4px;
  background: var(--rule);
  border-radius: 2px;
  position: relative;
}
.audio-dot {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 12px; height: 12px;
  background: var(--p-wine);
  border-radius: 50%;
  transition: left 0.2s;
}
.audio-time { font-size: 11.5px; color: var(--p-slate-faint); font-weight: 700; min-width: 42px; }
.audio-speed {
  padding: 5px 11px;
  background: var(--p-gold-pale);
  border-radius: 16px;
  font-size: 10.5px;
  font-weight: 900;
  color: var(--p-gold-dark);
}
.audio-volume {
  width: 30px; height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--p-slate-faint);
}
.audio-volume svg { width: 18px; height: 18px; }

/* ==================== CONTENT BLOCKS ==================== */

.content-block { margin-bottom: 32px; }
.block-title {
  font-size: 22px;
  font-weight: 900;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
  color: var(--p-slate-dark);
}
.block-sub {
  font-size: 14px;
  color: var(--p-slate-faint);
  margin-bottom: 16px;
  font-style: italic;
}
.block-lead {
  font-size: 16px;
  line-height: 1.55;
  margin-bottom: 14px;
  color: var(--p-slate);
}
.content-block p {
  font-size: 14.5px;
  line-height: 1.7;
  margin-bottom: 11px;
  color: var(--p-slate);
}
.content-block strong { color: var(--p-slate-dark); font-weight: 900; }
.content-block em { font-style: italic; color: var(--p-wine); }

/* Statement-dark (cita destacada) */
.statement-dark {
  background: var(--p-wine-dark);
  color: var(--p-gold-pale);
  border-radius: var(--radius);
  padding: 32px 38px;
  margin: 26px 0;
  position: relative;
  display: flex;
  align-items: center;
  gap: 24px;
  border-top: 3px solid var(--p-gold);
  border-bottom: 3px solid var(--p-gold);
}
.statement-dark .stmt-quote-mark {
  font-size: 80px;
  font-family: Georgia, serif;
  color: var(--p-gold);
  line-height: 0.8;
  flex-shrink: 0;
  align-self: flex-start;
}
.statement-dark .stmt-text {
  font-size: 19px;
  font-style: italic;
  line-height: 1.45;
  font-weight: 400;
}
.statement-dark .stmt-text strong {
  font-weight: 900;
  color: var(--p-gold-light);
  font-style: normal;
}

/* ==================== NUMBERED CARDS ==================== */

.numbered-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 20px 0;
}
.num-card {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--rule);
}
.num-card .nc-num {
  min-width: 78px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.02em;
  background: var(--p-wine);
}
.num-card[data-color="wine"] .nc-num { background: var(--p-wine); }
.num-card[data-color="wine-dark"] .nc-num { background: var(--p-wine-dark); }
.num-card[data-color="gold"] .nc-num { background: var(--p-gold-dark); color: var(--bg); }
.num-card[data-color="slate"] .nc-num { background: var(--p-slate-dark); }
.num-card[data-color="muted"] .nc-num { background: var(--p-slate-soft); }

.num-card .nc-body {
  flex: 1;
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.num-card .nc-body h4 {
  font-size: 15.5px;
  font-weight: 900;
  color: var(--p-slate-dark);
  margin-bottom: 4px;
}
.num-card .nc-body p {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--p-slate);
  margin: 0;
}
.num-card .nc-body strong { color: var(--p-slate-dark); font-weight: 900; }

/* ==================== TABS ==================== */

.tabs-block { margin: 20px 0; }
.tabs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  border-bottom: 2px solid var(--rule);
  margin-bottom: 22px;
}
.tab {
  padding: 11px 20px;
  font-size: 13px;
  font-weight: 700;
  color: var(--p-slate-faint);
  transition: all 0.2s;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
}
.tab:hover { color: var(--p-wine); }
.tab.active {
  color: var(--p-wine-dark);
  border-bottom-color: var(--p-gold);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.3s; }
.tab-panel h3 {
  font-size: 17px;
  font-weight: 900;
  margin-bottom: 10px;
  color: var(--p-wine-dark);
}
.tab-panel ul {
  list-style: none;
  padding: 0;
  margin-top: 8px;
}
.tab-panel li {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--p-slate);
  padding-left: 20px;
  position: relative;
  margin-bottom: 5px;
}
.tab-panel li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: var(--p-gold);
  font-weight: 900;
  font-size: 18px;
  top: -2px;
}

/* ==================== COMPARE BLOCK ==================== */

.compare-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 22px 0;
}
.compare-col {
  padding: 22px 24px;
  border-radius: var(--radius);
  border: 1.5px solid;
}
.compare-col.left {
  background: var(--bg-soft);
  border-color: var(--p-slate-faint);
}
.compare-col.right {
  background: var(--p-wine-pale);
  border-color: var(--p-wine-light);
}
.compare-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 14px;
  font-size: 10.5px;
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: 0.06em;
}
.compare-col.left .compare-tag { background: var(--p-slate-soft); color: var(--bg); }
.compare-col.right .compare-tag { background: var(--p-wine); color: var(--bg); }
.compare-text {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--p-slate);
}

/* ==================== LABELED GRAPHIC (león/zorro) ==================== */

.lg-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 22px 0;
}
.lg-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 22px 24px;
  border: 1px solid var(--rule);
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.lg-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 14px;
  color: var(--p-wine);
}
.lg-card h4 {
  font-size: 18px;
  font-weight: 900;
  color: var(--p-slate-dark);
  margin-bottom: 4px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.lg-card .lg-tag {
  font-size: 12px;
  color: var(--p-gold-dark);
  font-style: italic;
  margin-bottom: 12px;
}
.lg-card p {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--p-slate);
  text-align: left;
  margin-bottom: 8px;
}
.lg-card p strong { color: var(--p-slate-dark); font-weight: 900; }

/* ==================== CASE BLOCK (narrative) ==================== */

.case-block {
  background: var(--p-gold-pale);
  border-left: 4px solid var(--p-gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 22px 28px;
  margin: 22px 0;
}
.case-tag {
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  color: var(--p-gold-dark);
  margin-bottom: 10px;
}
.case-block h4 {
  font-size: 15px;
  font-weight: 900;
  color: var(--p-slate-dark);
  margin-bottom: 8px;
}
.case-block p {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--p-slate);
  margin-bottom: 8px;
}
.case-block p:last-child { margin-bottom: 0; }
.case-block strong { color: var(--p-wine-dark); font-weight: 900; }

/* ==================== SELF-CHECK (autoevaluación) ==================== */

.selfcheck-block {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 24px 26px;
  margin: 22px 0;
  border: 1px solid var(--rule);
}
.selfcheck-block h4 {
  font-size: 16px;
  font-weight: 900;
  color: var(--p-wine-dark);
  margin-bottom: 14px;
}
.selfcheck-q {
  margin-bottom: 16px;
}
.selfcheck-q:last-child { margin-bottom: 0; }
.selfcheck-q p.q-text {
  font-size: 14px;
  font-weight: 700;
  color: var(--p-slate-dark);
  margin-bottom: 8px;
}
.selfcheck-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.selfcheck-option {
  background: var(--bg);
  border: 1.5px solid var(--rule);
  border-radius: 6px;
  padding: 10px 14px;
  text-align: left;
  font-size: 13px;
  color: var(--p-slate);
  transition: all 0.2s;
  cursor: pointer;
}
.selfcheck-option:hover {
  border-color: var(--p-gold);
  background: var(--p-gold-pale);
}
.selfcheck-option.selected {
  border-color: var(--p-wine);
  background: var(--p-wine-pale);
  color: var(--p-wine-dark);
  font-weight: 700;
}
.selfcheck-result {
  display: none;
  margin-top: 14px;
  padding: 14px 16px;
  background: var(--p-wine-pale);
  border-radius: 6px;
  font-size: 13.5px;
  color: var(--p-wine-dark);
  border-left: 3px solid var(--p-wine);
}
.selfcheck-result.show { display: block; animation: fadeIn 0.3s; }

/* ==================== KNOWLEDGE CHECK + QUIZ ==================== */

.knowledge-check, .quiz-q {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 26px 28px;
  margin: 28px 0;
  border: 1px solid var(--rule);
}
.kc-label {
  font-size: 10.5px;
  font-weight: 900;
  letter-spacing: 0.14em;
  color: var(--p-wine);
  margin-bottom: 10px;
}
.kc-question, .quiz-q h3 {
  font-size: 17px;
  font-weight: 900;
  margin-bottom: 18px;
  color: var(--p-slate-dark);
  line-height: 1.35;
}
.kc-options {
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.kc-option {
  background: var(--bg);
  border: 1.5px solid var(--rule);
  border-radius: 6px;
  padding: 13px 18px;
  text-align: left;
  font-size: 14px;
  line-height: 1.4;
  color: var(--p-slate-dark);
  transition: all 0.2s;
}
.kc-option:hover:not(:disabled) {
  border-color: var(--p-gold);
  background: var(--p-gold-pale);
}
.kc-option.correct { border-color: var(--p-wine); background: var(--p-wine-pale); color: var(--p-wine-dark); font-weight: 700; }
.kc-option.incorrect { border-color: var(--p-slate-faint); background: var(--bg-soft); opacity: 0.6; }
.kc-option:disabled { cursor: default; }
.kc-feedback {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.55;
  padding: 14px 16px;
  border-radius: 6px;
  display: none;
}
.kc-feedback.show { display: block; }
.kc-feedback.good { background: var(--p-wine-pale); color: var(--p-wine-dark); border-left: 3px solid var(--p-wine); }
.kc-feedback.bad { background: var(--bg-soft); color: var(--p-slate); border-left: 3px solid var(--p-slate-faint); }

/* Quiz progress */
.quiz-progress-bar {
  height: 5px;
  background: var(--rule);
  border-radius: 3px;
  margin-bottom: 8px;
  overflow: hidden;
}
.quiz-progress-fill {
  height: 100%;
  background: var(--p-gold);
  width: 0%;
  transition: width 0.4s;
}
.quiz-meta {
  font-size: 11px;
  font-weight: 700;
  color: var(--p-slate-faint);
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}
.quiz-q { display: none; }
.quiz-q.active { display: block; }

/* Continue button */
.continue-wrap {
  display: flex;
  justify-content: flex-end;
  margin-top: 36px;
}
.continue-btn {
  background: var(--p-wine);
  color: var(--bg);
  padding: 14px 30px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.1em;
  transition: all 0.2s;
}
.continue-btn:hover:not(:disabled) {
  background: var(--p-wine-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(139, 26, 26, 0.3);
}
.continue-btn:disabled {
  background: var(--rule);
  color: var(--p-slate-faint);
  cursor: not-allowed;
}

/* ==================== COMPLETION ==================== */

.completion-hero {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 32px;
  min-height: 320px;
}
.completion-bg { position: absolute; inset: 0; }
.completion-bg svg { width: 100%; height: 100%; }
.completion-inner {
  position: relative;
  z-index: 1;
  padding: 50px;
  color: var(--bg);
  text-align: center;
}
.completion-mark {
  font-size: 64px;
  font-weight: 900;
  color: var(--p-gold-light);
  margin-bottom: 18px;
  line-height: 1;
}
.completion-title {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.completion-sub {
  font-size: 15px;
  opacity: 0.92;
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.5;
  font-style: italic;
  color: var(--p-gold-light);
}

.score-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 30px;
}
.score-card {
  background: var(--bg-soft);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
}
.score-label {
  font-size: 10.5px;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--p-slate-faint);
  margin-bottom: 8px;
}
.score-value {
  font-size: 32px;
  font-weight: 900;
  color: var(--p-wine);
  letter-spacing: -0.02em;
}

.next-courses {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
}
.next-course-card {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.next-course-card .ncc-code {
  font-size: 14px;
  font-weight: 900;
  color: var(--p-gold-dark);
  letter-spacing: 0.04em;
  min-width: 60px;
}
.next-course-card .ncc-body { flex: 1; }
.next-course-card .ncc-title {
  font-size: 14.5px;
  font-weight: 900;
  color: var(--p-slate-dark);
  margin-bottom: 3px;
}
.next-course-card .ncc-sub {
  font-size: 13px;
  color: var(--p-slate);
  font-style: italic;
}

.signoff {
  text-align: center;
  padding: 28px;
  border-top: 1px solid var(--rule);
  margin-top: 40px;
}
.signoff-logo {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.22em;
  color: var(--p-wine);
  margin-bottom: 8px;
}
.signoff p {
  font-size: 12.5px;
  color: var(--p-slate-faint);
  line-height: 1.5;
  font-style: italic;
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); transition: transform 0.3s; }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: flex; }
  .main-wrap { margin-left: 0; }
  .menu-btn { display: flex; }
  .content { padding: 24px 20px 60px; }
  .cover-content { max-width: 100%; padding: 36px 24px; }
  .cover-title { font-size: 32px; }
  .cover-subtitle-italic { font-size: 18px; }
  .lesson-title { font-size: 26px; }
  .meta-row { grid-template-columns: 1fr; }
  .lg-block, .compare-block { grid-template-columns: 1fr; }
  .num-card { flex-direction: column; }
  .num-card .nc-num { width: 100%; min-height: 60px; min-width: 0; padding: 16px; }
  .statement-dark { flex-direction: column; padding: 24px; gap: 12px; }
  .statement-dark .stmt-quote-mark { font-size: 48px; }
  .statement-dark .stmt-text { font-size: 16px; text-align: center; }
}