:root {
  color-scheme: dark light;
  --bg: #0a0c10;
  --surface: #0f1219;
  --surface-2: #141820;
  --header-bg: rgba(10,12,16,0.92);
  --header-bg-strong: rgba(10,12,16,0.97);
  --header-panel-bg: rgba(15,18,25,0.96);
  --border: rgba(255,255,255,0.07);
  --border-strong: rgba(255,255,255,0.13);
  --text: #eef1f7;
  --muted: #7a8799;
  --faint: #3a4455;

  --green: #c8d300;
  --green-dim: rgba(200,211,0,0.1);
  --green-border: rgba(200,211,0,0.3);

  --orange: #f5a623;
  --orange-dim: rgba(245,166,35,0.1);
  --orange-border: rgba(245,166,35,0.3);

  --red: #e62243;
  --red-dim: rgba(230,34,67,0.1);
  --red-border: rgba(230,34,67,0.3);

  --accent: #c8d300;
  --accent-dim: rgba(200,211,0,0.08);
  --accent-border: rgba(200,211,0,0.3);

  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 64px;
  --shell-max: 1240px;
  --shell-pad: 42px;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg: #f4f6f3;
    --surface: #ffffff;
    --surface-2: #f0f3ee;
    --header-bg: rgba(244,246,243,0.92);
    --header-bg-strong: rgba(244,246,243,0.97);
    --header-panel-bg: rgba(255,255,255,0.97);
    --border: rgba(16,24,32,0.10);
    --border-strong: rgba(16,24,32,0.18);
    --text: #11161c;
    --muted: #546170;
    --faint: #8a96a3;

    --green-dim: rgba(200,211,0,0.14);
    --green-border: rgba(140,150,0,0.34);

    --orange-dim: rgba(245,166,35,0.14);
    --orange-border: rgba(201,122,0,0.32);

    --red-dim: rgba(230,34,67,0.10);
    --red-border: rgba(230,34,67,0.28);

    --accent-dim: rgba(200,211,0,0.14);
    --accent-border: rgba(140,150,0,0.34);
  }
}

:root[data-theme="light"] {
  --bg: #f4f6f3;
  --surface: #ffffff;
  --surface-2: #f0f3ee;
  --header-bg: rgba(244,246,243,0.92);
  --header-bg-strong: rgba(244,246,243,0.97);
  --header-panel-bg: rgba(255,255,255,0.97);
  --border: rgba(16,24,32,0.10);
  --border-strong: rgba(16,24,32,0.18);
  --text: #11161c;
  --muted: #546170;
  --faint: #8a96a3;

  --green-dim: rgba(200,211,0,0.14);
  --green-border: rgba(140,150,0,0.34);

  --orange-dim: rgba(245,166,35,0.14);
  --orange-border: rgba(201,122,0,0.32);

  --red-dim: rgba(230,34,67,0.10);
  --red-border: rgba(230,34,67,0.28);

  --accent-dim: rgba(200,211,0,0.14);
  --accent-border: rgba(140,150,0,0.34);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: inherit;
}

/* ── HEADER ─────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 0;
  height: var(--header-h);
  padding: 0 var(--shell-pad);
  max-width: var(--shell-max);
  margin: 0 auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--text);
  white-space: nowrap;
  min-width: 190px;
}

.logo-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 10px var(--red);
  flex-shrink: 0;
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 8px var(--red); }
  50% { box-shadow: 0 0 18px var(--red), 0 0 30px rgba(230,34,67,0.3); }
}

.mobile-menu-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.mobile-menu-icon {
  width: 14px;
  height: 10px;
  position: relative;
  border-top: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
}

.mobile-menu-icon::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  border-top: 2px solid currentColor;
  transform: translateY(-50%);
}

.site-header.mobile-nav-open .mobile-menu-icon {
  border-color: transparent;
}

.site-header.mobile-nav-open .mobile-menu-icon::after {
  transform: translateY(-50%) rotate(45deg);
}

.site-header.mobile-nav-open .mobile-menu-icon::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  border-top: 2px solid currentColor;
  transform: translateY(-50%) rotate(-45deg);
}

.tab-nav {
  display: flex;
  gap: 2px;
  flex: 0 1 auto;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 12px;
}
.tab-nav::-webkit-scrollbar { display: none; }

.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.tab-btn:hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}

.tab-btn.active {
  color: var(--text);
  background: rgba(200,211,0,0.1);
  border-color: rgba(200,211,0,0.25);
}

.tab-num {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.tab-btn.active .tab-num { color: var(--accent); }

.tab-btn.locked {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.06em;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
  margin-left: 8px;
}

.lang-toggle:hover { color: var(--text); border-color: var(--border-strong); }
.lang-active { color: var(--text); }
.lang-divider { color: var(--faint); }
.theme-toggle { min-width: 112px; justify-content: center; }

.progress-bar {
  height: 2px;
  background: rgba(255,255,255,0.05);
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #e8f000);
  width: 20%;
  transition: width 0.5s ease;
}

.site-nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
  transition: color 0.2s, background 0.2s;
}

.site-nav-link:hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}

.site-nav-link.active {
  color: var(--text);
  background: rgba(200,211,0,0.1);
}

.nav-login-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: not-allowed;
  opacity: 0.6;
}

.nav-login-btn.logged-in {
  cursor: pointer;
  opacity: 1;
  border-color: var(--accent-border);
  color: var(--text);
}

.phase-pill {
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.78rem;
  white-space: nowrap;
}

/* ── MAIN ─────────────────────────────────── */
.main-content {
  padding-top: var(--header-h);
  min-height: 100vh;
}

.sim-main-content {
  padding-top: calc(var(--header-h) + 58px);
}

.sim-tab-bar {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  z-index: 95;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.sim-tab-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px var(--shell-pad);
  overflow-x: auto;
  scrollbar-width: none;
  max-width: var(--shell-max);
  margin: 0 auto;
}

.sim-tab-inner::-webkit-scrollbar {
  display: none;
}

.tab-section {
  display: none;
  min-height: calc(100vh - var(--header-h));
}

.tab-section.active {
  display: block;
  animation: fadeIn 0.35s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-inner {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 60px var(--shell-pad) 80px;
}

.site-footer {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 0 var(--shell-pad) 36px;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: left;
}

/* ── TYPOGRAPHY ─────────────────────────────── */
.kicker {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

h1 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 20px;
  max-width: 600px;
}

h2 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  line-height: 1.26;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: 16px;
  max-width: 600px;
}

h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 10px;
}

.subtitle {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 72ch;
  margin-bottom: 40px;
  line-height: 1.65;
}

.section-header {
  max-width: 980px;
  margin-bottom: 44px;
}

.section-header h1 {
  max-width: 600px;
}

.section-header h2 {
  max-width: 600px;
}

.home-main {
  min-height: calc(100vh - var(--header-h));
}

.home-hero {
  min-height: calc(100vh - var(--header-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px var(--shell-pad);
  max-width: var(--shell-max);
  margin: 0 auto;
  position: relative;
}

.home-hero h1 {
  font-size: clamp(1.55rem, 3.2vw, 2.45rem);
  line-height: 1.1;
  max-width: none;
  margin-bottom: 24px;
}

.home-hero h1 span {
  color: var(--red);
}

.home-tagline {
  font-size: 1.15rem;
  color: var(--text);
  max-width: 55ch;
  margin-bottom: 12px;
  line-height: 1.6;
}

.home-forwhom {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 22px;
}

.home-intro {
  max-width: 62ch;
  margin-bottom: 44px;
  color: var(--muted);
}

.home-modules {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}

.home-module-card {
  display: block;
  padding: 32px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}

.home-module-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(200,211,0,0.08);
}

.home-module-card.danger:hover {
  border-color: var(--red);
  box-shadow: 0 8px 32px rgba(230,34,67,0.08);
}

.hmc-number {
  font-family: 'Bungee', sans-serif;
  font-size: 3rem;
  color: rgba(255,255,255,0.05);
  line-height: 1;
  margin-bottom: 16px;
}

.hmc-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.hmc-tag.green { background: var(--green-dim); color: var(--green); border: 1px solid var(--green-border); }
.hmc-tag.red { background: var(--red-dim); color: var(--red); border: 1px solid var(--red-border); }
.hmc-tag.white { background: rgba(255,255,255,0.08); color: var(--text); border: 1px solid var(--border-strong); }

.hmc-title {
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: 0.01em;
  max-width: none;
}

.hmc-desc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.6;
}

.hmc-arrow {
  position: absolute;
  bottom: 20px;
  right: 24px;
  font-size: 1.2rem;
  color: var(--faint);
  transition: color 0.2s, transform 0.2s;
}

.home-module-card:hover .hmc-arrow { color: var(--accent); transform: translateX(4px); }
.home-module-card.danger:hover .hmc-arrow { color: var(--red); }

.home-login {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  flex-wrap: wrap;
}

.home-login-text p { font-size: 0.88rem; color: var(--muted); margin: 4px 0 0; }
.home-login-text strong { font-size: 0.95rem; color: var(--text); }

.btn-sso {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--muted);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: not-allowed;
  opacity: 0.6;
}

.dot-pattern {
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background-image: radial-gradient(circle, rgba(200,211,0,0.15) 1.5px, transparent 1.5px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse at top right, black 20%, transparent 75%);
  pointer-events: none;
}

.uitleg-page {
  padding-top: 88px;
}

.uitleg-section {
  margin-bottom: 80px;
}

.uitleg-chapters {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.uitleg-chapter {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  overflow: hidden;
}

.uitleg-chapter[open] {
  border-color: var(--accent-border);
  box-shadow: 0 10px 30px rgba(0,0,0,0.14);
}

.uitleg-chapter summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px;
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.uitleg-chapter summary::-webkit-details-marker {
  display: none;
}

.uitleg-chapter summary::after {
  content: '+';
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
}

.uitleg-chapter[open] summary::after {
  content: '−';
}

.uitleg-chapter-body {
  padding: 0 22px 22px;
  border-top: 1px solid var(--border);
}

.uitleg-chapter-body p {
  margin-top: 14px;
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.7;
}

.uitleg-chapter-body .analogy {
  color: var(--text);
  opacity: 0.78;
  font-style: italic;
}

.uitleg-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 36px 0;
}

.uitleg-step {
  display: flex;
  gap: 24px;
  padding-bottom: 32px;
  position: relative;
}

.uitleg-step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 23px;
  top: 48px;
  width: 2px;
  bottom: 0;
  background: var(--border-strong);
}

.uitleg-step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 2px solid var(--accent-border);
  color: var(--accent);
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.uitleg-step-body h3 {
  font-size: 1rem;
  margin-bottom: 6px;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
}

.uitleg-step-body p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
}

.uitleg-step-body .analogy {
  font-style: italic;
  color: var(--text);
  opacity: 0.7;
  margin-top: 6px;
}

.takeaway-box,
.relevance-box {
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--red);
  border-radius: var(--radius);
  color: var(--text);
}

.relevance-box h3 {
  margin-bottom: 10px;
}

.relevance-box p + p {
  margin-top: 10px;
}

.pred-demo {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin: 32px 0;
}

.pred-sentence {
  font-family: 'Inter', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 28px;
  letter-spacing: 0.02em;
  min-height: 2.2em;
}

.pred-blank {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
  padding: 0 4px;
  display: inline-block;
  min-width: 60px;
}

.pred-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.pred-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.pred-option {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background 0.2s, border-color 0.2s;
  background: transparent;
  width: 100%;
  text-align: left;
  color: inherit;
}

.pred-option:hover {
  background: var(--surface-2);
  border-color: var(--border);
}

.pred-word {
  font-weight: 600;
  color: var(--text);
  font-size: 0.95rem;
  width: 80px;
  flex-shrink: 0;
}

.pred-bar-wrap {
  flex: 1;
  height: 8px;
  background: var(--surface-2);
  border-radius: 4px;
  overflow: hidden;
}

.pred-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  transition: width 0.6s ease;
}

.pred-pct {
  font-size: 0.82rem;
  color: var(--muted);
  width: 38px;
  text-align: right;
  flex-shrink: 0;
}

.pred-explanation {
  padding: 16px 20px;
  background: var(--red-dim);
  border: 1px solid var(--red-border);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.6;
  display: none;
}

.pred-explanation.visible { display: block; }

.pred-reset {
  margin-top: 16px;
}

.training-main {
  padding-top: 96px;
}

/* ── BUTTONS ─────────────────────────────── */
.btn-primary, .btn-ghost, .btn-danger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: transform 0.15s ease, opacity 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: #0a0c10;
  font-weight: 700;
}

.btn-primary:hover:not(:disabled) { background: #b8c200; transform: translateY(-2px); }
.btn-primary:disabled { opacity: 0.35; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover { color: var(--text); border-color: rgba(255,255,255,0.22); transform: translateY(-1px); }

.btn-danger {
  background: linear-gradient(135deg, var(--red), #ff8a9a);
  color: #fff;
  font-weight: 600;
}
.btn-danger:hover { transform: translateY(-2px); }

@keyframes btn-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(230,34,67,0); }
  50% { box-shadow: 0 0 0 8px rgba(230,34,67,0.25); }
}
.btn-pulse {
  animation: btn-glow 1.6s ease-in-out infinite;
}

.section-cta {
  margin-top: 44px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ── SCENARIO CARDS ──────────────────────── */
.scenario-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.scenario-card {
  position: relative;
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
  overflow: hidden;
}

.scenario-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.2s;
  background: radial-gradient(circle at top left, rgba(200,211,0,0.08), transparent 60%);
}

.scenario-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.scenario-card:hover::before { opacity: 1; }

.scenario-card.selected {
  border-color: var(--accent);
  background: rgba(200,211,0,0.07);
}

.scenario-card.selected::before { opacity: 1; }

.scenario-tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(245,166,35,0.12);
  border: 1px solid var(--orange-border);
  color: var(--orange);
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
}

.scenario-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.scenario-card p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.scenario-card .scenario-snippet {
  margin-top: 16px;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.78rem;
  color: var(--red);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scenario-action {
  margin-top: 16px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
}

/* ── PIPELINE ────────────────────────────── */
.pipe-input-box {
  margin: 32px 0 10px;
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px rgba(200,211,0,0.08), 0 4px 24px rgba(200,211,0,0.06);
}

.pipe-input-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.pipe-input-text {
  font-size: 0.83rem;
  color: var(--text);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  opacity: 0.85;
}

/* Flow row */
.pipe-flow {
  display: grid;
  grid-template-columns: minmax(0,1fr) 44px minmax(0,1fr) 44px minmax(0,1fr) 44px minmax(0,1fr) 44px minmax(0,1fr);
  align-items: stretch;
  gap: 0;
  margin: 0 0 44px;
  overflow-x: visible;
  padding: 4px 0 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}

/* Node cards */
.pf-node {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 10px;
  padding: 26px 16px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.9s ease, transform 0.9s ease, border-color 0.55s, box-shadow 0.55s;
}

.pf-node.lit {
  opacity: 1;
  transform: translateY(0);
}

.pf-node--danger {
  border-color: rgba(230,34,67,0.2);
  background: rgba(230,34,67,0.03);
}

.pf-node--danger.lit {
  border-color: var(--red-border);
  box-shadow: 0 0 32px rgba(230,34,67,0.1);
}

/* Icons */
.pf-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border: 1px solid rgba(200,211,0,0.2);
  color: var(--accent);
  flex-shrink: 0;
}

.pf-icon-wrap--danger {
  background: var(--red-dim);
  border-color: var(--red-border);
  color: var(--red);
}

.pf-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  min-height: 2.6em;
}

.pf-desc {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.5;
  flex: 1;
}

.pf-danger-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--red-dim);
  color: var(--red);
  border: 1px solid var(--red-border);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Connectors */
.pf-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 0;
  gap: 4px;
  position: relative;
}

.pf-line {
  width: 100%;
  height: 2px;
  background: var(--border-strong);
  position: relative;
  overflow: hidden;
  border-radius: 1px;
}

.pf-line-fill {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 0;
  background: linear-gradient(90deg, var(--accent), rgba(200,211,0,0.5));
  transition: width 1s ease;
}

.pf-connector--danger .pf-line-fill {
  background: linear-gradient(90deg, rgba(200,211,0,0.5), var(--red));
}

.pf-connector.lit .pf-line-fill { width: 100%; }

.pf-chevron {
  font-size: 1.1rem;
  color: var(--faint);
  line-height: 1;
  transition: color 0.4s;
}

.pf-chevron--danger { color: var(--faint); }
.pf-connector.lit .pf-chevron { color: var(--accent); }
.pf-connector--danger.lit .pf-chevron { color: var(--red); }

/* ── LEAK ────────────────────────────────── */
.leak-layout {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: start;
}

.leak-col { display: flex; flex-direction: column; gap: 14px; }

.leak-box {
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}

.leak-box.original { border-color: var(--border-strong); }
.leak-box.other { border-color: var(--border); }
.leak-box.response {
  border-color: var(--red-border);
  background: rgba(230,34,67,0.04);
}

.leak-box-header { margin-bottom: 14px; }

.leak-tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.leak-tag.you {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(200,211,0,0.25);
}
.leak-tag.other-user {
  background: rgba(255,255,255,0.05);
  color: var(--muted);
  border: 1px solid var(--border);
}
.leak-tag.model {
  background: var(--red-dim);
  color: var(--red);
  border: 1px solid var(--red-border);
}

.leak-prompt-text {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.7;
}

.prompt-task {
  display: block;
  color: var(--muted);
  font-style: italic;
  margin-bottom: 16px;
}

.prompt-data-block {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 14px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.prompt-data-row {
  font-size: 0.85rem;
  color: var(--text);
}

mark.sensitive {
  background: rgba(230,34,67,0.15);
  color: #ff8a9a;
  border-radius: 3px;
  padding: 1px 4px;
  font-weight: 600;
  font-style: normal;
}

mark.leaked {
  background: rgba(230,34,67,0.22);
  color: var(--red);
  border-radius: 3px;
  padding: 1px 4px;
  font-weight: 700;
  font-style: normal;
}

.leak-question {
  font-size: 0.9rem;
  color: var(--text);
  font-style: italic;
}

.leak-response-text {
  font: inherit;
  font-size: 0.85rem;
  color: #ffa0af;
  line-height: 1.65;
  white-space: pre-wrap;
  min-height: 100px;
  transition: opacity 0.3s ease;
}

.leak-placeholder { color: var(--muted); font-style: italic; }

.leak-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 0 28px;
  padding-top: 60px;
}

.leak-divider-line {
  width: 1px;
  height: 60px;
  background: var(--border-strong);
}

.leak-divider-label {
  font-size: 0.75rem;
  color: var(--muted);
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.leak-cta { margin-top: 36px; }

.leak-explainer {
  margin-top: 28px;
  padding: 20px 24px;
  border-radius: var(--radius-sm);
  background: var(--orange-dim);
  border: 1px solid var(--orange-border);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.explainer-icon {
  font-size: 1.3rem;
  color: var(--orange);
  flex-shrink: 0;
  margin-top: 1px;
}

.leak-explainer p { color: var(--muted); font-size: 0.9rem; line-height: 1.65; }

/* ── ZONES ───────────────────────────────── */
.zone-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 8px;
}

.zone-card {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.zone-card.green { border-color: var(--green-border); background: rgba(200,211,0,0.03); }
.zone-card.orange { border-color: var(--orange-border); background: rgba(245,166,35,0.03); }
.zone-card.red { border-color: var(--red-border); background: rgba(230,34,67,0.03); }

.zone-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.zone-indicator {
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}
.zone-indicator.green { background: var(--green); box-shadow: 0 0 8px var(--green); }
.zone-indicator.orange { background: var(--orange); box-shadow: 0 0 8px var(--orange); }
.zone-indicator.red { background: var(--red); box-shadow: 0 0 8px var(--red); }

.zone-card h3 { margin-bottom: 0; font-size: 1rem; }
.zone-card p { color: var(--muted); font-size: 0.88rem; }

.zone-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.zone-card ul li {
  font-size: 0.87rem;
  color: var(--text);
  line-height: 1.45;
  padding-left: 2px;
}

.zone-card ul li.no { color: var(--muted); }

.zone-tag {
  display: inline-block;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  background: var(--green-dim);
  border: 1px solid var(--green-border);
  color: var(--green);
  margin-top: auto;
  letter-spacing: 0.02em;
}

.zone-tag.orange { background: var(--orange-dim); border-color: var(--orange-border); color: var(--orange); }
.zone-tag.red { background: var(--red-dim); border-color: var(--red-border); color: var(--red); }

/* ── CONSEQUENCES ────────────────────────── */
.consequence-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.consequence-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.consequence-card.legal { border-color: rgba(200,211,0,0.25); }
.consequence-card.commercial { border-color: var(--orange-border); }
.consequence-card.reputation { border-color: var(--red-border); }

.consequence-icon {
  font-family: 'Inter', sans-serif;
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1;
}

.consequence-card.legal .consequence-icon { color: var(--accent); }
.consequence-card.commercial .consequence-icon { color: var(--orange); }
.consequence-card.reputation .consequence-icon { color: var(--red); }

.consequence-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.consequence-card ul li {
  font-size: 0.88rem;
  color: var(--muted);
  padding-left: 14px;
  position: relative;
  line-height: 1.5;
}

.consequence-card ul li::before {
  content: '-';
  position: absolute;
  left: 0;
  color: var(--faint);
}

.final-message {
  margin-top: 36px;
  padding: 2px;
  border-radius: calc(var(--radius) + 2px);
  background: linear-gradient(135deg, rgba(200,211,0,0.25), rgba(200,211,0,0.12));
}

.final-inner {
  padding: 32px 36px;
  border-radius: var(--radius);
  background: var(--surface);
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.final-inner h3 { margin-bottom: 0; flex-shrink: 0; }
.final-inner p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
  flex: 1;
  min-width: 240px;
}

/* ── TRAINING MODULE ─────────────────── */
.tr-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.tr-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  height: var(--header-h);
  gap: 20px;
}

.tr-back {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.83rem;
  font-weight: 500;
  transition: color 0.2s;
  flex-shrink: 0;
}
.tr-back:hover { color: var(--text); }

.tr-phase-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  flex-shrink: 0;
}

.tr-main {
  min-height: 100vh;
  padding-top: var(--header-h);
}

.tr-section { width: 100%; }

.tr-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 60px 28px 80px;
}

.tr-inner h2 { margin-bottom: 36px; }

/* Lesson points */
.tr-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.tr-point {
  display: flex;
  gap: 18px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: flex-start;
}

.tr-point-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 36px;
  text-align: center;
  line-height: 1;
  padding-top: 2px;
}

.tr-point-body strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.tr-point-body p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

/* Takeaway */
.tr-takeaway {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 18px 22px;
  background: var(--accent-dim);
  border: 1px solid rgba(200,211,0,0.25);
  border-radius: var(--radius);
  margin-bottom: 36px;
}

.tr-takeaway-icon { font-size: 1.3rem; flex-shrink: 0; }

.tr-takeaway p {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
  margin: 0;
}

/* Quiz question */
.tr-question {
  font-size: 1.05rem !important;
  line-height: 1.4;
  margin-bottom: 28px !important;
}

.tr-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.tr-option {
  display: block;
  width: 100%;
  padding: 16px 20px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  color: var(--text);
  font: inherit;
  font-size: 0.92rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
  line-height: 1.45;
}

.tr-option:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent-dim);
  transform: translateX(4px);
}

.tr-option--correct {
  border-color: var(--green) !important;
  background: var(--green-dim) !important;
  color: var(--green) !important;
}

.tr-option--wrong {
  border-color: var(--red) !important;
  background: var(--red-dim) !important;
  color: var(--red) !important;
}

/* Feedback block */
.tr-feedback {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 20px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  border: 1px solid;
}

.tr-feedback--correct {
  background: var(--green-dim);
  border-color: var(--green-border);
}

.tr-feedback--wrong {
  background: var(--red-dim);
  border-color: var(--red-border);
}

.tr-feedback-icon {
  font-size: 1.1rem;
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 1px;
}

.tr-feedback--correct .tr-feedback-icon { color: var(--green); }
.tr-feedback--wrong .tr-feedback-icon { color: var(--red); }

.tr-feedback strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.tr-feedback p {
  font-size: 0.87rem;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

/* CTA row */
.tr-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

/* Result */
.tr-score-card {
  display: flex;
  gap: 28px;
  align-items: center;
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  margin-bottom: 40px;
}

.tr-score-card--green { border-color: var(--green-border); background: var(--green-dim); }
.tr-score-card--orange { border-color: var(--orange-border); background: var(--orange-dim); }
.tr-score-card--red { border-color: var(--red-border); background: var(--red-dim); }

.tr-score-ring { position: relative; flex-shrink: 0; width: 80px; height: 80px; }

.tr-ring-svg { width: 80px; height: 80px; transform: rotate(-90deg); }

.tr-ring-bg {
  fill: none;
  stroke: rgba(255,255,255,0.08);
  stroke-width: 8;
}

.tr-ring-fill {
  fill: none;
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dasharray 1s ease;
}

.tr-ring-fill--green { stroke: var(--green); }
.tr-ring-fill--orange { stroke: var(--orange); }
.tr-ring-fill--red { stroke: var(--red); }

.tr-score-pct {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
}

.tr-score-body { flex: 1; }

.tr-score-level {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.tr-score-level--green { color: var(--green); }
.tr-score-level--orange { color: var(--orange); }
.tr-score-level--red { color: var(--red); }

.tr-score-body p { font-size: 0.9rem; color: var(--muted); line-height: 1.6; margin: 0; }

/* Review list */
.tr-review { margin-bottom: 40px; }
.tr-review h3 { margin-bottom: 16px; font-size: 1rem; }

.tr-review-row {
  display: flex;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.tr-review-row--ok { border-color: var(--green-border); background: var(--green-dim); }
.tr-review-row--fail { border-color: var(--red-border); }

.tr-review-icon { font-size: 0.9rem; font-weight: 800; flex-shrink: 0; padding-top: 2px; }
.tr-review-row--ok .tr-review-icon { color: var(--green); }
.tr-review-row--fail .tr-review-icon { color: var(--red); }

.tr-review-q { font-size: 0.85rem; color: var(--text); margin: 0 0 4px; }
.tr-review-answer { font-size: 0.8rem; color: var(--red); margin: 2px 0 0; }
.tr-review-correct { font-size: 0.8rem; color: var(--green); margin: 2px 0 0; }

.tr-result-cta { margin-top: 8px; }

/* Training button in main nav */
.btn-training {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  white-space: nowrap;
}
.btn-training:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-dim);
}

/* Fade in animation */
.fade-in {
  animation: fadeInUp 0.4s ease both;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── TYPING ANIMATION ─────────────────── */
.typing-cursor::after {
  content: '▋';
  animation: blink 0.8s step-end infinite;
  color: var(--red);
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ── TRAINING PLATFORM ───────────────────── */
.training-main {
  padding-top: 96px;
}

.tr-shell {
  width: 100%;
}

.tr-dashboard {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 42px var(--shell-pad) 88px;
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.tr-dashboard--clean {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.training-topbar {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 20px;
  align-items: stretch;
}

.training-topbar-copy,
.training-topbar-actions {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  box-shadow: 0 16px 44px rgba(0,0,0,0.22);
}

.training-topbar-copy h1 {
  max-width: 18ch;
  font-size: clamp(1.15rem, 2vw, 1.7rem);
  line-height: 1.15;
  margin-top: 0;
  margin-bottom: 12px;
}

.training-topbar-actions {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
}

.certificate-status {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  font-size: 0.84rem;
}

.certificate-status.ready {
  border-color: var(--green-border);
  background: var(--green-dim);
  color: var(--green);
}

.lesson-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.lesson-sidebar,
.lesson-stage-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 16px 44px rgba(0,0,0,0.22);
}

.lesson-sidebar {
  position: sticky;
  top: 106px;
  padding: 28px;
}

.lesson-sidebar h1 {
  margin: 0 0 14px;
  line-height: 1.18;
}

.training-intro,
.lesson-summary {
  color: var(--muted);
  line-height: 1.75;
  font-size: 0.95rem;
}

.training-rule {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--orange-border);
  background: var(--orange-dim);
  color: var(--text);
  font-size: 0.84rem;
  line-height: 1.6;
}

.lesson-sidebar-group {
  margin-top: 28px;
}

.lesson-sidebar-title,
.lesson-section-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.lesson-nav-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.lesson-nav-card {
  width: 100%;
  padding: 16px 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  text-align: left;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}

.lesson-rail .lesson-nav-card {
  min-height: 148px;
}

.lesson-nav-card:hover:not(:disabled),
.lesson-nav-card.active {
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.06);
}

.lesson-nav-card.complete {
  border-color: var(--green-border);
}

.lesson-nav-card:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.lesson-nav-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.lesson-nav-kicker {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}

.lesson-nav-state {
  font-size: 0.68rem;
  color: var(--muted);
}

.lesson-nav-card strong {
  display: block;
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.45;
}

.lesson-nav-card p {
  margin: 8px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.55;
}

.certificate-trigger {
  width: 100%;
  margin-top: 22px;
  justify-content: center;
}

.certificate-trigger:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.lesson-stage {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.lesson-stage-card {
  padding: 28px;
}

.lesson-stage-card--hero {
  padding: 26px 28px;
}

.lesson-stage-card--compact {
  padding: 20px 22px;
}

.lesson-stage-head,
.lesson-section-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}

.lesson-stage-head h2,
.lesson-section-head h3 {
  margin: 6px 0 0;
}

.lesson-stage-head--hero h2 {
  max-width: 32ch;
}

.lesson-hero-copy .lesson-summary {
  margin-top: 14px;
}

.lesson-progress-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.lesson-progress-meta span {
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  font-size: 0.76rem;
  white-space: nowrap;
}

.lesson-progress-meta--stacked {
  flex-direction: column;
  align-items: flex-end;
}

.lesson-progress-meta--stacked span {
  min-width: 154px;
  text-align: center;
}

.lesson-progress-meta .is-complete {
  border-color: var(--green-border);
  background: var(--green-dim);
  color: var(--green);
}

.lesson-summary {
  margin: 16px 0 0;
  max-width: 72ch;
}

.lesson-flow-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  gap: 20px;
}

.lesson-flow-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.lesson-flow-item {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  font-weight: 600;
}

.lesson-flow-item.done {
  border-color: var(--green-border);
  background: var(--green-dim);
  color: var(--text);
}

.lesson-jump-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.lesson-jump-btn {
  padding: 12px 16px;
}

.lesson-content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 20px;
  margin-top: 26px;
}

.lesson-content-grid--clean {
  align-items: start;
}

.lesson-modules-panel,
.lesson-detail-card,
.lesson-question-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-2);
}

.lesson-modules-panel,
.lesson-detail-card {
  padding: 22px;
}

.lesson-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.lesson-chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.lesson-chip:hover,
.lesson-chip.active {
  border-color: var(--accent-border);
  background: var(--accent-dim);
  color: var(--text);
}

.lesson-chip.visited {
  border-color: var(--green-border);
}

.lesson-module-stack {
  display: grid;
  gap: 12px;
}

.lesson-topic-card {
  width: 100%;
  padding: 18px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  text-align: left;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.lesson-topic-card:hover,
.lesson-topic-card.active {
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.06);
}

.lesson-topic-top {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
}

.lesson-topic-index {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  flex-shrink: 0;
}

.lesson-topic-card strong {
  font-size: 0.98rem;
  color: var(--text);
}

.lesson-topic-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.88rem;
}

.lesson-module-list {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}

.lesson-mini-row {
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255,255,255,0.02);
  border: 1px solid transparent;
}

.lesson-mini-row.active {
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.06);
}

.lesson-mini-row strong {
  display: block;
  font-size: 0.86rem;
  margin-bottom: 5px;
}

.lesson-mini-row p {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

.lesson-detail-card h3,
.lesson-question-card h3 {
  margin: 12px 0 10px;
  font-family: 'Inter', sans-serif;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0;
}

.lesson-detail-card p,
.lesson-question-card p {
  color: var(--muted);
  line-height: 1.7;
}

.lesson-detail-card--clean {
  min-height: 100%;
}

.lesson-detail-hint {
  margin: 10px 0 0;
  font-size: 0.84rem;
}

.lesson-detail-list {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--text);
}

.lesson-detail-list li {
  margin-bottom: 10px;
  line-height: 1.6;
}

.lesson-warning {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--red-border);
  background: var(--red-dim);
  color: var(--text);
  font-size: 0.84rem;
  line-height: 1.6;
}

.lesson-question-layout {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 18px;
  margin-top: 20px;
}

.lesson-question-layout--clean {
  align-items: start;
}

.lesson-question-tabs {
  display: grid;
  gap: 10px;
}

.lesson-question-tab {
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.lesson-question-tab span {
  display: block;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 6px;
}

.lesson-question-tab strong {
  font-size: 0.88rem;
  color: var(--muted);
}

.lesson-question-tab.active {
  border-color: var(--accent-border);
  background: var(--accent-dim);
}

.lesson-question-tab.correct {
  border-color: var(--green-border);
}

.lesson-question-tab.correct strong {
  color: var(--green);
}

.lesson-question-tab.wrong {
  border-color: var(--red-border);
}

.lesson-question-tab.wrong strong {
  color: var(--red);
}

.lesson-question-card {
  padding: 24px;
}

.lesson-question-count,
.lesson-question-hint {
  font-size: 0.78rem;
  color: var(--muted);
}

.lesson-question-count {
  margin: 0 0 12px;
}

.lesson-question-hint {
  margin: 0 0 14px;
}

.lesson-answer-grid {
  display: grid;
  gap: 10px;
}

.lesson-answer-btn {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  text-align: left;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.lesson-answer-btn:hover {
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.06);
  transform: translateX(3px);
}

.lesson-answer-btn.correct {
  border-color: var(--green-border);
  background: var(--green-dim);
  color: var(--green);
}

.lesson-answer-btn.wrong {
  border-color: var(--red-border);
  background: var(--red-dim);
  color: var(--red);
}

.lesson-answer-feedback {
  display: none;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}

.lesson-answer-feedback.visible {
  display: block;
}

.lesson-answer-feedback strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.82rem;
  color: var(--text);
}

.lesson-answer-feedback p {
  margin: 0;
  font-size: 0.86rem;
}

.lesson-complete-banner {
  display: none;
  margin-top: 18px;
  padding: 15px 18px;
  border-radius: 12px;
  border: 1px solid var(--green-border);
  background: var(--green-dim);
  color: var(--text);
  font-size: 0.86rem;
}

.lesson-complete-banner.visible {
  display: block;
}

.certificate-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 20px;
}

.certificate-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4,5,7,0.78);
  backdrop-filter: blur(6px);
}

.certificate-card {
  position: relative;
  width: min(720px, 100%);
  padding: 34px;
  border-radius: 20px;
  border: 1px solid var(--accent-border);
  background:
    radial-gradient(circle at top right, rgba(200,211,0,0.08), transparent 34%),
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01)),
    #10141b;
  box-shadow: 0 24px 70px rgba(0,0,0,0.35);
}

.certificate-intro {
  max-width: 58ch;
  margin: 14px 0 0;
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.certificate-grid div {
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}

.certificate-grid span {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.certificate-grid strong {
  color: var(--text);
  font-size: 0.95rem;
}

.certificate-policy {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
}

.certificate-stamp {
  margin-top: 24px;
  font-family: 'Bungee', sans-serif;
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

/* ── TRAINING LEARN ───────────────────── */
.tl-shell {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 42px var(--shell-pad) 88px;
}

.tl-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 20px;
  margin-bottom: 20px;
}

.tl-hero-copy,
.tl-hero-list,
.tl-switcher,
.tl-lesson-index,
.tl-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 16px 44px rgba(0,0,0,0.18);
}

.tl-hero-copy,
.tl-hero-list,
.tl-panel {
  padding: 24px 26px;
}

.tl-hero-copy h1 {
  max-width: 22ch;
  margin-bottom: 12px;
}

.tl-hero-list {
  list-style: none;
  display: grid;
  gap: 12px;
  align-content: center;
}

.tl-hero-list li {
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  color: var(--text);
}

.tl-switcher {
  display: inline-flex;
  gap: 8px;
  padding: 8px;
  margin-bottom: 20px;
}

.tl-switch {
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.tl-switch.active {
  color: var(--text);
  background: var(--accent-dim);
  border-color: var(--accent-border);
}

.tl-lesson-grid {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.tl-lesson-index {
  padding: 22px;
  position: sticky;
  top: 106px;
}

.tl-index-intro {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-top: 8px;
}

.tl-subhead {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.tl-card-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.tl-lesson-card {
  width: 100%;
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.tl-lesson-card:hover,
.tl-lesson-card.active {
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.06);
}

.tl-lesson-card-top,
.tl-unit-header,
.tl-panel-head,
.tl-question-top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}

.tl-lesson-kicker,
.tl-lesson-status,
.tl-unit-progress,
.tl-score-chip,
.tl-cert-state {
  font-size: 0.76rem;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  white-space: nowrap;
}

.tl-lesson-card strong {
  display: block;
  margin-top: 10px;
  line-height: 1.42;
  font-size: 0.98rem;
  color: var(--text);
}

.tl-lesson-card p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.tl-lesson-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tl-lesson-meta span {
  font-size: 0.74rem;
  color: var(--muted);
}

.tl-main-column {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.tl-panel--objectives {
  padding-top: 20px;
}

.tl-unit-layout {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  gap: 18px;
  margin-top: 22px;
}

.tl-unit-sidebar {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-2);
  padding: 18px;
}

.tl-unit-list,
.tl-question-stack {
  display: grid;
  gap: 12px;
}

.tl-unit-item {
  width: 100%;
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  color: inherit;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s, background 0.2s;
}

.tl-unit-item.active {
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.08);
}

.tl-unit-item.viewed .tl-unit-number {
  border-color: var(--green-border);
  color: var(--green);
}

.tl-unit-number,
.tl-question-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 800;
  flex-shrink: 0;
}

.tl-unit-copy {
  display: grid;
  gap: 2px;
}

.tl-unit-copy strong {
  font-size: 0.9rem;
}

.tl-unit-copy span {
  font-size: 0.78rem;
  color: var(--muted);
}

.tl-unit-content {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-2);
  padding: 22px;
}

.tl-unit-content h3,
.tl-question-card h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1.14rem;
  line-height: 1.35;
  letter-spacing: 0;
  margin: 0;
}

.tl-unit-content p,
.tl-question-card p,
.tl-footer-note p {
  color: var(--muted);
  line-height: 1.7;
}

.tl-bullet-list {
  margin-top: 16px;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.tl-bullet-list li {
  color: var(--text);
  line-height: 1.6;
}

.tl-takeaway {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--green-border);
  background: var(--green-dim);
  color: var(--text);
  font-size: 0.88rem;
}

.tl-unit-actions,
.tl-footer-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 20px;
}

.tl-nav-btn {
  padding: 12px 18px;
}

.tl-question-lesson-picks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.tl-lesson-chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  font: inherit;
  cursor: pointer;
}

.tl-lesson-chip.active {
  color: var(--text);
  border-color: var(--accent-border);
  background: var(--accent-dim);
}

.tl-question-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-2);
  padding: 20px;
}

.tl-answer-grid {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.tl-answer-btn {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  color: var(--text);
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.tl-answer-btn:hover {
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.06);
}

.tl-answer-btn.correct {
  border-color: var(--green-border);
  background: var(--green-dim);
  color: var(--green);
}

.tl-answer-btn.wrong {
  border-color: var(--red-border);
  background: var(--red-dim);
  color: var(--red);
}

.tl-feedback {
  display: none;
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}

.tl-feedback.visible {
  display: block;
}

.tl-feedback strong {
  display: block;
  margin-bottom: 6px;
}

.tl-question-card.correct {
  border-color: var(--green-border);
}

.tl-question-card.wrong {
  border-color: var(--red-border);
}

.tl-footer-note {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin-top: 22px;
  padding: 18px 20px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}

.tl-cert-state.ready {
  border-color: var(--green-border);
  background: var(--green-dim);
  color: var(--green);
}

/* ── RESPONSIVE ─────────────────────────── */
@media (max-width: 900px) {
  .pipe-flow { display: flex; gap: 0; overflow-x: auto; }
  .pf-node { min-width: 180px; padding: 20px 12px 18px; }
  .pf-connector { flex: 0 0 32px; }
  .zone-grid, .consequence-grid { grid-template-columns: 1fr; }
  .leak-layout { grid-template-columns: 1fr; }
  .leak-divider { flex-direction: row; padding: 0; padding-top: 0; margin: 8px 0; }
  .leak-divider-line { width: 60px; height: 1px; }
  .final-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
  .home-modules { grid-template-columns: 1fr; }
  .tl-hero,
  .tl-lesson-grid,
  .tl-unit-layout {
    grid-template-columns: 1fr;
  }
  .tl-lesson-index {
    position: static;
  }
  .training-topbar,
  .lesson-rail,
  .lesson-flow-grid,
  .tr-dashboard { grid-template-columns: 1fr; }
  .lesson-sidebar { position: static; }
  .lesson-content-grid,
  .lesson-question-layout,
  .certificate-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .site-header {
    background: var(--header-bg-strong);
  }

  .header-inner {
    height: auto;
    min-height: var(--header-h);
    padding: 10px 16px;
    flex-wrap: wrap;
    row-gap: 10px;
  }

  .header-actions {
    gap: 8px;
  }

  .mobile-menu-toggle {
    display: inline-flex;
  }

  .logo {
    min-width: auto;
    flex: 1 1 auto;
  }

  .tab-nav {
    order: 3;
    flex: 1 0 100%;
    padding: 0;
    margin: 0 -2px;
    display: none;
    flex-direction: column;
    background: var(--header-panel-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
  }

  .site-header.mobile-nav-open .tab-nav {
    display: flex;
  }

  .site-nav-link {
    width: 100%;
    border-radius: 0;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
  }

  .site-nav-link:last-child {
    border-bottom: 0;
  }

  .tab-btn {
    flex: 0 0 auto;
  }

  .site-nav-link {
    font-size: 0.78rem;
  }

  .nav-login-btn {
    padding: 6px 10px;
    font-size: 0.76rem;
  }

  .tab-label { display: none; }
  .main-content { padding-top: 118px; }
  .sim-main-content { padding-top: 166px; }
  .sim-tab-bar { top: 118px; }
  .sim-tab-inner { padding: 8px 16px; }
  .section-inner { padding: 40px 18px 60px; }
  .section-header { max-width: none; }
  .section-header h1,
  .section-header h2,
  .subtitle { max-width: none; }
  h1 { font-size: 1.15rem; }
  h2 { font-size: 0.95rem; }
  .scenario-cards { grid-template-columns: 1fr; }
  .home-hero { padding: 40px 18px 60px; }
  .home-login { padding: 20px; gap: 14px; align-items: flex-start; }
  .home-login-text { flex: 1 1 100%; }
  .pred-demo { padding: 20px; }
  .pred-option { padding: 8px 10px; gap: 10px; }
  .pred-word { width: 64px; font-size: 0.88rem; }
  .pred-sentence { font-size: 1.1rem; line-height: 1.4; }
  .uitleg-step { gap: 16px; }
  .uitleg-step-num { width: 42px; height: 42px; font-size: 1rem; }
  .uitleg-chapter summary,
  .uitleg-chapter-body { padding-left: 18px; padding-right: 18px; }
  .dot-pattern { width: 220px; height: 220px; }
  .phase-pill { display: none; }
  .site-footer { padding-left: 18px; padding-right: 18px; }
  .tr-dashboard { padding: 28px 18px 60px; gap: 18px; }
  .tl-shell { padding: 28px 18px 60px; }
  .tl-hero-copy,
  .tl-hero-list,
  .tl-panel,
  .tl-lesson-index { padding: 20px; }
  .tl-panel-head,
  .tl-question-top,
  .tl-unit-header,
  .tl-footer-note { flex-direction: column; align-items: flex-start; }
  .tl-switcher { width: 100%; justify-content: space-between; }
  .tl-switch { flex: 1; justify-content: center; }
  .tl-footer-actions { width: 100%; }
  .tl-footer-actions .btn-ghost { width: 100%; justify-content: center; }
  .training-topbar-copy,
  .training-topbar-actions,
  .lesson-sidebar,
  .lesson-stage-card,
  .certificate-card { padding: 20px; }
  .lesson-stage-head,
  .lesson-section-head { flex-direction: column; }
  .lesson-progress-meta { justify-content: flex-start; }
  .lesson-progress-meta--stacked { align-items: flex-start; }
  .lesson-rail { grid-template-columns: 1fr; }
  .lesson-chip-row { gap: 8px; }
  .lesson-chip { width: 100%; text-align: left; }
  .lesson-jump-actions { flex-direction: column; }
  .lesson-jump-btn { width: 100%; justify-content: center; }
  .lesson-question-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lesson-question-tab { min-height: 68px; }
  .certificate-modal { padding: 14px; }
  .tr-inner { padding: 34px 18px 56px; }
  .tr-score-card { flex-direction: column; align-items: flex-start; gap: 18px; }
  .tr-option { padding: 14px 16px; font-size: 0.88rem; }
  .pipe-input-box,
  .scenario-card,
  .zone-card,
  .consequence-card,
  .leak-box,
  .tr-point,
  .tr-feedback { padding-left: 16px; padding-right: 16px; }
}

/* ── READING SYSTEM ─────────────────────────────── */
.section-header--reading {
  max-width: 920px;
}

.section-header--reading .subtitle {
  max-width: 760px;
}

.section-cta--hint {
  align-items: flex-start;
  gap: 14px;
}

.section-hint {
  max-width: 48ch;
  color: var(--muted);
  font-size: 0.9rem;
}

.section-hint--inline {
  margin-top: 18px;
}

.term-button,
.learn-term {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 9px;
  border: 1px solid rgba(255,255,255,0.52);
  border-radius: 8px;
  background: rgba(255,255,255,0.03);
  color: var(--accent);
  font: inherit;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.term-button:hover,
.learn-term:hover {
  background: rgba(200,211,0,0.1);
  border-color: rgba(200,211,0,0.62);
}

.term-button:focus-visible,
.learn-term:focus-visible {
  outline: 2px solid rgba(255,255,255,0.35);
  outline-offset: 1px;
}

/* ── UITLEG REDESIGN ────────────────────────────── */
.uitleg-page {
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.uitleg-roadmap {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.uitleg-roadmap-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 18px;
  color: inherit;
  font: inherit;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}

.uitleg-roadmap-item:hover,
.uitleg-roadmap-item.active {
  transform: translateY(-2px);
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.05);
}

.uitleg-chapter-panel[hidden] {
  display: none !important;
}

.uitleg-roadmap-item span {
  display: inline-flex;
  margin-bottom: 12px;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 0.82rem;
  color: var(--accent);
}

.uitleg-roadmap-item strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.98rem;
  color: var(--text);
}

.uitleg-roadmap-item p {
  color: var(--muted);
  font-size: 0.88rem;
}

.uitleg-reading-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 0.95fr);
  gap: 22px;
  align-items: start;
}

.uitleg-reading,
.uitleg-side-panel {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 28px 30px;
}

.uitleg-reading h2 {
  margin-bottom: 16px;
}

.uitleg-reading p {
  color: var(--text);
  max-width: 66ch;
  margin-bottom: 16px;
  font-size: 1.02rem;
  line-height: 1.8;
}

.uitleg-side-panel {
  position: sticky;
  top: calc(var(--header-h) + 28px);
}

.uitleg-side-panel strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.uitleg-side-panel p {
  color: var(--muted);
  line-height: 1.75;
}

.uitleg-side-panel--soft {
  background: rgba(200,211,0,0.05);
  border-color: rgba(200,211,0,0.18);
}

.uitleg-side-panel--danger {
  background: rgba(230,34,67,0.08);
  border-color: rgba(230,34,67,0.18);
}

.uitleg-callout {
  margin-top: 22px;
  padding: 18px 20px;
  border-radius: 16px;
  background: rgba(200,211,0,0.08);
  border: 1px solid rgba(200,211,0,0.22);
}

.uitleg-callout span {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.uitleg-callout p {
  margin: 0;
}

.uitleg-callout--soft {
  background: rgba(255,255,255,0.03);
  border-color: var(--border);
}

.uitleg-token-demo {
  margin: 24px 0;
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
}

.uitleg-token-label {
  margin-bottom: 12px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.uitleg-token-line {
  margin-bottom: 14px;
  color: var(--text);
  font-weight: 600;
}

.uitleg-token-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.uitleg-token-strip span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(200,211,0,0.08);
  border: 1px solid rgba(200,211,0,0.2);
  color: var(--text);
  font-size: 0.84rem;
  font-family: 'DM Mono', 'Courier New', monospace;
}

.uitleg-note-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.uitleg-note {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
}

.uitleg-note strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.98rem;
}

.uitleg-note p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.7;
}

.uitleg-side-list {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.uitleg-side-list span {
  display: block;
  margin-bottom: 10px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.uitleg-side-list ul {
  display: grid;
  gap: 10px;
  padding-left: 18px;
  color: var(--muted);
}

/* ── TRAINING LEARN V2 ──────────────────────────── */
.learn-shell {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 30px var(--shell-pad) 84px;
}

.learn-index,
.learn-path,
.learn-article,
.learn-side-panel,
.learn-question-header,
.learn-question-panel {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 22px;
}

.learn-index,
.learn-path,
.learn-article,
.learn-side-panel,
.learn-question-header,
.learn-question-panel {
  padding: 28px 30px;
}

.learn-intro {
  margin-bottom: 6px;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
}

.learn-intro p {
  max-width: 72ch;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.learn-main-grid {
  display: grid;
  grid-template-columns: minmax(280px, 330px) minmax(0, 1fr);
  gap: 22px;
}

.learn-mobile-index-bar,
.learn-mobile-index-overlay,
.learn-mobile-index-drawer {
  display: none;
}

.learn-index {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  align-self: start;
}

.learn-subhead {
  margin-bottom: 10px;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.learn-index-copy,
.learn-lesson-header p,
.learn-question-header p,
.learn-question-card p,
.learn-completion p,
.learn-side-panel p,
.learn-lesson-card p,
.learn-article p {
  color: var(--muted);
}

.learn-card-list {
  display: grid;
  gap: 14px;
}

.learn-lesson-row {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255,255,255,0.02);
  overflow: clip;
  transition: border-color 0.2s, background 0.2s;
}

.learn-lesson-row.active,
.learn-lesson-row:hover {
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.05);
}

.learn-lesson-row-toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 14px 16px;
  cursor: pointer;
  font: inherit;
  color: var(--text);
}

.learn-lesson-row-main {
  min-width: 0;
  display: block;
}

.learn-lesson-row-main strong {
  display: block;
  font-size: 0.98rem;
  line-height: 1.5;
  font-weight: 600;
  color: var(--text);
}

.learn-lesson-row-body {
  display: none;
  padding: 0 16px 14px;
}

.learn-lesson-row.active .learn-lesson-row-body {
  display: block;
}

.learn-lesson-row-body p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--muted);
}

.learn-lesson-meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--muted);
}

.learn-lesson-card {
  width: 100%;
  text-align: left;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  padding: 18px;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}

.learn-lesson-card:hover,
.learn-lesson-card.active {
  transform: translateY(-2px);
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.06);
}

.learn-lesson-top,
.learn-path-head,
.learn-article-head,
.learn-question-panel-head,
.learn-question-head,
.learn-completion {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}

.learn-kicker,
.learn-status {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 11px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}

.learn-progress-chip,
.learn-progress-inline {
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.5;
}

.learn-progress-chip {
  display: inline;
  padding: 0;
  border: 0;
  background: transparent;
  border-radius: 0;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

.learn-lesson-card strong,
.learn-question-panel-head h2,
.learn-article h2 {
  display: block;
  color: var(--text);
}

.learn-lesson-card strong {
  margin: 12px 0 10px;
  font-size: 1.02rem;
  line-height: 1.35;
}

.learn-lesson-card p {
  font-size: 0.95rem;
  line-height: 1.7;
}

.learn-reading-column {
  display: grid;
  gap: 22px;
}

.learn-path-title {
  margin: 8px 0 0;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.45;
  max-width: 36ch;
}

.learn-path-grid,
.learn-question-lessons {
  display: grid;
  gap: 12px;
}

.learn-section-link,
.learn-chip {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  color: var(--text);
  border-radius: 18px;
  padding: 16px 18px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.learn-section-link {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  text-align: left;
}

.learn-section-link:hover,
.learn-section-link.active,
.learn-chip:hover,
.learn-chip.active {
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.07);
  transform: translateY(-1px);
}

.learn-section-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--accent-border);
  background: rgba(200,211,0,0.08);
  color: var(--accent);
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 0.84rem;
}

.learn-section-copy strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.95rem;
}

.learn-section-copy span {
  color: var(--muted);
  font-size: 0.82rem;
}

.learn-article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 0.95fr);
  gap: 22px;
  align-items: start;
}

.learn-section-link--quiz {
  border-style: dashed;
}

.learn-article-head h2 {
  margin: 12px 0 8px;
}

.learn-article p {
  margin: 0 0 16px;
  max-width: 66ch;
  line-height: 1.8;
  font-size: 1rem;
}

.learn-bullets,
.learn-goals {
  display: grid;
  gap: 12px;
  padding-left: 20px;
}

.learn-bullets li,
.learn-goals li {
  line-height: 1.7;
}

.learn-callout {
  margin: 24px 0 18px;
  padding: 18px 20px;
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
}

.learn-callout-label {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--orange);
}

.learn-takeaway {
  padding: 18px 20px;
  border-radius: 16px;
  background: rgba(200,211,0,0.08);
  border: 1px solid rgba(200,211,0,0.22);
  color: var(--text);
  line-height: 1.7;
}

.learn-article-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.learn-side-panel {
  position: sticky;
  top: calc(var(--header-h) + 24px);
}

.learn-side-block + .learn-side-block {
  margin-top: 20px;
}

.learn-side-block strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.02rem;
}

.learn-side-block p,
.learn-side-block li {
  line-height: 1.75;
}

.learn-side-block--accent {
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.learn-questions-shell {
  display: grid;
  gap: 22px;
}

.learn-question-lessons {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.learn-chip {
  text-align: left;
  font: inherit;
  line-height: 1.55;
}

.learn-question-stack {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.learn-question-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255,255,255,0.02);
  padding: 22px;
}

.learn-question-head h3 {
  margin-bottom: 6px;
  font-size: 1.02rem;
}

.learn-answer-grid {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.learn-answer {
  width: 100%;
  text-align: left;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  color: var(--text);
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
  cursor: pointer;
}

.learn-answer:hover {
  border-color: var(--accent-border);
  background: rgba(200,211,0,0.06);
}

.learn-answer.correct {
  border-color: var(--green-border);
  background: var(--green-dim);
  color: var(--green);
}

.learn-answer.wrong {
  border-color: var(--red-border);
  background: var(--red-dim);
  color: var(--red);
}

.learn-feedback {
  display: none;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
}

.learn-feedback.visible {
  display: block;
}

.learn-feedback strong {
  display: block;
  margin-bottom: 6px;
}

.learn-question-card.correct {
  border-color: var(--green-border);
}

.learn-question-card.wrong {
  border-color: var(--red-border);
}

.learn-completion {
  margin-top: 22px;
  padding: 18px 20px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}

.learn-completion--inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.learn-quiz-intro {
  margin-bottom: 18px;
  color: var(--muted);
}

.learn-article-head .learn-progress-inline {
  margin: 0;
}

.learn-completion strong {
  display: block;
  margin-bottom: 8px;
}

.learn-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 120;
}

.learn-modal {
  position: fixed;
  inset: 0;
  z-index: 121;
  display: grid;
  place-items: center;
  padding: 20px;
}

.learn-cert-card {
  width: min(760px, 100%);
  padding: 30px 32px;
  border-radius: 24px;
  border: 1px solid var(--accent-border);
  background: #121610;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.learn-cert-card h2 {
  margin: 12px 0 14px;
}

.learn-cert-card p {
  max-width: 56ch;
  color: var(--muted);
  line-height: 1.75;
}

.learn-cert-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 24px 0;
}

.learn-cert-grid div {
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}

.learn-cert-grid dt {
  margin-bottom: 8px;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.learn-cert-grid dd {
  color: var(--text);
  line-height: 1.6;
}

@media (max-width: 900px) {
  .uitleg-roadmap,
  .uitleg-reading-layout,
  .uitleg-note-grid,
  .learn-main-grid,
  .learn-article-layout,
  .learn-question-lessons,
  .learn-cert-grid {
    grid-template-columns: 1fr;
  }

  .uitleg-side-panel,
  .learn-index,
  .learn-side-panel {
    position: static;
  }
}

@media (max-width: 680px) {
  .uitleg-roadmap-item,
  .uitleg-reading,
  .uitleg-side-panel,
  .uitleg-note,
  .learn-intro,
  .learn-index,
  .learn-lesson-header,
  .learn-path,
  .learn-article,
  .learn-side-panel,
  .learn-question-header,
  .learn-question-panel,
  .learn-cert-card {
    padding: 20px;
  }

  .learn-shell {
    padding: 28px 18px 64px;
  }

  .learn-index {
    display: none;
  }

  .learn-main-grid {
    display: block;
  }

  .learn-mobile-index-bar {
    display: block;
    margin-bottom: 14px;
  }

  .learn-mobile-index-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border: 1px solid var(--accent-border);
    border-radius: 16px;
    background: rgba(200,211,0,0.08);
    color: var(--text);
    padding: 14px 16px;
    font: inherit;
    font-weight: 700;
  }

  .learn-mobile-index-overlay.open {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 118;
  }

  .learn-mobile-index-drawer.open {
    display: block;
    position: fixed;
    top: calc(var(--header-h) + 10px);
    left: 12px;
    right: 12px;
    max-height: calc(100dvh - var(--header-h) - 24px);
    overflow-y: auto;
    background: rgba(15,18,25,0.98);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 16px;
    z-index: 119;
  }

  .learn-mobile-index-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
  }

  .learn-article-actions,
  .learn-completion,
  .learn-article-head,
  .learn-question-panel-head,
  .learn-question-head,
  .uitleg-reading-layout {
    flex-direction: column;
  }

  .learn-answer,
  .learn-chip,
  .learn-lesson-card,
  .learn-lesson-row-main strong {
    font-size: 0.95rem;
  }

  .pred-sentence {
    font-size: 1.1rem;
    line-height: 1.4;
  }

  .uitleg-token-strip span {
    font-size: 0.78rem;
  }
}