:root {
  --bg-primary: #fafafa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f0f0;
  --bg-card: #ffffff;
  --bg-hover: #f5f5f5;
  --bg-active: #e8e8e8;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #8888a0;
  --text-inverse: #ffffff;
  --border-color: #e0e0e8;
  --border-light: #f0f0f4;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --accent: #d4a017;
  --accent-light: #f0d060;
  --accent-dark: #b8860b;
  --accent-rgb: 212, 160, 23;
  --red: #cc3333;
  --red-light: #ffeaea;
  --green: #2d8a4e;
  --green-light: #e6f7ed;
  --blue: #2563eb;
  --blue-light: #e8f0fe;
  --purple: #7c3aed;
  --purple-light: #f0e8ff;
  --der-color: #2563eb;
  --die-color: #dc2660;
  --das-color: #16a34a;
  --plural-color: #7c3aed;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;
  --max-width: 1200px;
  --header-height: 64px;
}

[data-theme="dark"] {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #252540;
  --bg-card: #1e1e36;
  --bg-hover: #2a2a48;
  --bg-active: #35355a;
  --text-primary: #e8e8f0;
  --text-secondary: #b0b0c8;
  --text-muted: #707090;
  --text-inverse: #0f0f1a;
  --border-color: #2e2e50;
  --border-light: #252540;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.6);
  --red-light: #3a1a1a;
  --green-light: #1a2e1a;
  --blue-light: #1a1a3a;
  --purple-light: #2a1a3a;
}

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

html { font-size: 17px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (min-width: 900px) {
  html { font-size: 18px; }
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}

a { color: var(--accent-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
[data-theme="dark"] a { color: var(--accent-light); }
[data-theme="dark"] a:hover { color: var(--accent); }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  font-size: inherit;
  color: inherit;
}

/* Header (standalone chrome) */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  padding: 0 24px;
  transition: background var(--transition), border-color var(--transition);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}

.logo-flag {
  width: 28px;
  height: 20px;
  border-radius: 3px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.logo-flag span { flex: 1; }
.logo-flag .f-black { background: #000; }
.logo-flag .f-red { background: #dd0000; }
.logo-flag .f-gold { background: #ffcc00; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-link:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-link.active { background: var(--accent); color: #fff; }

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

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: background var(--transition);
}

.theme-toggle:hover { background: var(--bg-hover); }
.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--blue);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  text-transform: uppercase;
  border: none;
  cursor: default;
}

.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 12px 20px 64px;
  min-height: calc(100vh - var(--header-height));
}

.page { display: none; animation: fadeIn 0.3s ease; }
.page.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(212, 160, 23, 0.3);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(212, 160, 23, 0.4);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover { background: var(--bg-hover); transform: translateY(-1px); }

.btn-sm { padding: 8px 16px; font-size: 0.8rem; }

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
}

.btn-icon:hover { background: var(--bg-hover); transform: translateY(-1px); }

.section-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title .badge {
  font-size: 0.7rem;
  padding: 3px 10px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-weight: 600;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  transition: transform 0.3s ease;
  pointer-events: none;
}

.toast.show { transform: translateX(-50%) translateY(0); }


/* ─── SPEECH / TTS ─── */

.speak-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all 0.15s;
  flex-shrink: 0;
  padding: 0;
  font-family: inherit;
  line-height: 1;
}
span.speak-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.speak-btn:hover { color: var(--accent); background: var(--bg-hover); }
.speak-btn.speaking { color: var(--accent); }

.speak-btn-lg {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  border: 2px solid var(--accent);
  background: rgba(var(--accent-rgb, 196, 167, 48), 0.08);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  transition: all 0.2s;
  margin-bottom: 12px;
}
.speak-btn-lg:hover { background: var(--accent); color: #fff; transform: translateY(-1px); }
.speak-btn-icon { font-size: 1.1rem; }

.transcript-hidden {
  filter: blur(6px);
  user-select: none;
  pointer-events: none;
  transition: filter 0.3s;
}

.transcript-toggle {
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 12px;
  transition: all 0.15s;
}
.transcript-toggle:hover { border-color: var(--accent); color: var(--accent); }
.transcript-toggle.used { color: var(--text-muted); font-style: italic; }

.hoeren-notice { border-left-color: var(--green); }

/* Speed control */
.speed-control {
  display: flex;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
}
.speed-btn {
  padding: 3px 6px;
  border: none;
  background: var(--bg-card);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.15s;
  white-space: nowrap;
  line-height: 1;
}
.speed-btn:not(:last-child) { border-right: 1px solid var(--border-color); }
.speed-btn:hover { color: var(--accent); }
.speed-btn.active { background: var(--accent); color: #fff; }

@media (max-width: 768px) {
  .speed-control { display: none; }
}

/* ─── EINBÜRGERUNGSTEST ─── */

.et-hub { max-width: 900px; margin: 0 auto; padding: 0; }

.et-hero {
  text-align: center;
  padding: 12px 16px 16px;
}
.et-hero-icon { font-size: 2.4rem; margin-bottom: 4px; }
.et-hero h1 { margin: 0; font-size: 1.65rem; }
.et-hero-sub { color: var(--text-muted); margin-top: 6px; font-size: 0.95rem; line-height: 1.45; }

.et-stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 0 16px;
  margin-bottom: 24px;
}
.et-stat {
  text-align: center;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 14px 8px;
  border: 1px solid var(--border-color);
}
.et-stat-num { font-size: 1.5rem; font-weight: 800; }
.et-stat-correct { color: var(--green); }
.et-stat-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; margin-top: 2px; }

.et-progress-ring-wrap {
  display: flex;
  justify-content: center;
  position: relative;
  margin: 0 auto 32px;
  width: 140px;
  height: 140px;
}
.et-progress-ring { width: 100%; height: 100%; }
.et-progress-ring circle:nth-child(2) { transition: stroke-dashoffset 0.6s ease; }
.et-progress-ring-label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.et-ring-pct { font-size: 1.4rem; font-weight: 800; color: var(--green); }
.et-ring-sub { font-size: 0.75rem; color: var(--text-muted); }

.et-modes { padding: 0 16px; margin-bottom: 32px; }
.et-mode-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.et-mode-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 20px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  transition: all 0.2s;
}
.et-mode-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.et-mode-icon { font-size: 1.6rem; }
.et-mode-title { font-weight: 700; font-size: 1rem; }
.et-mode-desc { font-size: 0.85rem; color: var(--text-muted); line-height: 1.4; }

.et-mode-card-focus {
  grid-column: 1 / -1;
}
.et-mode-has-list {
  border-color: var(--accent);
  background: rgba(var(--accent-rgb, 196, 167, 48), 0.06);
}
.et-mode-count {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 800;
  background: var(--accent);
  color: #fff;
  vertical-align: middle;
}

/* My Focus */
.et-focus { max-width: 700px; margin: 0 auto; }
.et-focus-body { padding: 0 16px 40px; }
.et-focus-lead {
  font-size: 0.92rem;
  line-height: 1.45;
  color: var(--text-muted);
  margin: 0 0 20px;
}
.et-focus-lead strong { color: var(--text-primary); }
.et-focus-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.et-focus-input {
  width: 100%;
  box-sizing: border-box;
  font: inherit;
  font-size: 0.95rem;
  line-height: 1.4;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  resize: vertical;
  min-height: 72px;
}
.et-focus-input:focus {
  outline: none;
  border-color: var(--accent);
}
.et-focus-add-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}
.et-focus-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.et-focus-msg {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}
.et-focus-msg-ok {
  background: rgba(40, 167, 69, 0.1);
  color: var(--green);
}
.et-focus-msg-warn {
  background: rgba(var(--accent-rgb, 196, 167, 48), 0.12);
  color: var(--text-primary);
}
.et-focus-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 22px 0 16px;
}
.et-focus-sum {
  text-align: center;
  padding: 12px 6px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
}
.et-focus-sum strong {
  display: block;
  font-size: 1.25rem;
  font-weight: 800;
}
.et-focus-sum span {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.et-focus-sum-bad strong { color: var(--red); }
.et-focus-sum-ok strong { color: var(--green); }
.et-focus-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}
.et-focus-chips-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}
.et-focus-chips-head h3 {
  margin: 0;
  font-size: 0.95rem;
}
.et-focus-legend {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.72rem;
  color: var(--text-muted);
}
.et-focus-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
}
.et-focus-dot.et-focus-bad { background: var(--red); }
.et-focus-dot.et-focus-ok { background: var(--green); }
.et-focus-dot.et-focus-new { background: var(--text-muted); }
.et-focus-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.et-focus-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  font-family: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  color: var(--text-primary);
  transition: border-color 0.15s, background 0.15s;
}
.et-focus-chip:hover {
  border-color: var(--red);
  background: rgba(220, 53, 69, 0.06);
}
.et-focus-chip-id { font-weight: 700; }
.et-focus-chip-meta { font-size: 0.75rem; opacity: 0.85; }
.et-focus-chip-x {
  font-size: 1rem;
  line-height: 1;
  color: var(--text-muted);
  padding: 0 2px;
}
.et-focus-chip.et-focus-bad { border-color: rgba(220, 53, 69, 0.45); }
.et-focus-chip.et-focus-ok { border-color: rgba(40, 167, 69, 0.45); }
.et-focus-missing {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.et-focus-empty {
  margin-top: 28px;
  padding: 28px 20px;
  text-align: center;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
}
.et-focus-empty-sub {
  margin: 8px 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.et-categories { padding: 0 16px; margin-bottom: 32px; }
.et-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}
.et-cat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}
.et-cat-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.et-cat-icon { font-size: 1.5rem; }
.et-cat-name { font-weight: 700; font-size: 0.85rem; }
.et-cat-name-en { font-size: 0.7rem; color: var(--text-muted); }
.et-cat-bar { width: 100%; height: 4px; border-radius: 2px; background: var(--border-color); margin-top: 4px; }
.et-cat-bar-fill { height: 100%; border-radius: 2px; background: var(--green); transition: width 0.4s; }
.et-cat-stat { font-size: 0.7rem; color: var(--text-muted); }

.et-reset-btn {
  display: block;
  margin: 16px auto 40px;
  padding: 8px 20px;
  border: 1px solid var(--red);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--red);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  transition: all 0.15s;
}
.et-reset-btn:hover { background: var(--red); color: #fff; }

/* Topbar */
.et-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 16px;
  gap: 12px;
}
.et-topbar h2 { margin: 0; font-size: 1.1rem; white-space: nowrap; }

.et-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  white-space: nowrap;
}
.et-toggle-wrap input { accent-color: var(--accent); }

.et-lang-toggle-sm {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
}
.et-lang-toggle-sm input { accent-color: var(--accent); width: 14px; height: 14px; }

/* Study Mode */
.et-study { max-width: 900px; margin: 0 auto; }
.et-study-cat { padding: 0 16px; margin-bottom: 24px; }
.et-study-cat h3 { font-size: 1rem; margin-bottom: 12px; border-bottom: 1px solid var(--border-color); padding-bottom: 8px; }
.et-study-cat h3 small { font-weight: 400; color: var(--text-muted); }
.et-study-list { display: flex; flex-direction: column; gap: 10px; }

.et-study-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  cursor: pointer;
  transition: all 0.15s;
}
.et-study-card:hover { border-color: var(--accent); }
.et-study-card.et-status-correct { border-left: 3px solid var(--green); }
.et-study-card.et-status-wrong { border-left: 3px solid var(--red); }

.et-study-q-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.et-q-num { font-size: 0.7rem; font-weight: 700; color: var(--text-muted); background: var(--bg-hover); padding: 2px 6px; border-radius: 4px; }
.et-q-status-dot { width: 8px; height: 8px; border-radius: 50%; }
.et-q-status-dot.et-status-correct { background: var(--green); }
.et-q-status-dot.et-status-wrong { background: var(--red); }

.et-study-q { font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.et-study-q-en { font-size: 0.85rem; color: var(--text-muted); font-style: italic; margin-bottom: 8px; }

.et-image-block {
  margin: 10px 0 14px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-hover);
}
.et-question-image .et-image {
  width: 100%;
  display: block;
  max-height: min(420px, 55vh);
  object-fit: contain;
  background: #fff;
}
.et-image-missing {
  padding: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
  justify-content: center;
  align-items: center;
  min-height: 96px;
}

.et-opt-text {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  flex: 1;
  min-width: 0;
}
.et-opt-text-body {
  flex: 1;
  min-width: 0;
}
.et-opt-text .speak-btn.speak-btn-opt {
  flex-shrink: 0;
  margin-top: 1px;
}

.et-opt-text-img {
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
}
.et-opt-speak-row {
  display: flex;
  justify-content: flex-end;
}

.et-opt-img-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 0;
}
.et-opt-img {
  width: 100%;
  display: block;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: #fff;
  object-fit: contain;
  max-height: 180px;
}
.et-opt-img-label {
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.et-opt-img-missing {
  padding: 10px;
  border-radius: 10px;
  border: 1px dashed var(--border-color);
  color: var(--text-muted);
  font-size: 0.82rem;
}
.et-opt-btn-image {
  align-items: stretch;
}

.et-study-opts { display: flex; flex-direction: column; gap: 4px; }
.et-study-opt {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}
.et-study-opt.et-correct { background: rgba(40, 167, 69, 0.1); font-weight: 600; }
.et-opt-letter {
  font-weight: 700;
  color: var(--text-muted);
  min-width: 18px;
  flex-shrink: 0;
}
.et-study-opt.et-correct .et-opt-letter { color: var(--green); }
.et-opt-en { color: var(--text-muted); font-style: italic; font-weight: 400; }
.et-study-opt .et-opt-text {
  flex: 1;
  min-width: 0;
}

/* Practice Mode */
.et-practice { max-width: 720px; margin: 0 auto; }
.et-q-counter { font-size: 0.85rem; font-weight: 700; color: var(--text-muted); white-space: nowrap; }

.et-practice-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 16px 12px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 8px;
}
.et-goto-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}
.et-goto-select {
  font: inherit;
  font-size: 0.85rem;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  max-width: min(280px, 72vw);
}

.et-practice-saved-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  padding: 0 16px 6px;
  line-height: 1.35;
}

.et-practice-resume-banner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin: 0 16px 12px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--accent);
  background: rgba(var(--accent-rgb, 196, 167, 48), 0.08);
  font-size: 0.85rem;
}
.et-practice-resume-text strong { display: block; margin-bottom: 4px; color: var(--text-primary); }
.et-practice-resume-sub {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.et-cat-resume {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  margin: 4px 0 2px;
}

.et-progress-slim {
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  margin: 0 16px 16px;
}
.et-progress-slim-fill { height: 100%; border-radius: 2px; background: var(--accent); transition: width 0.3s; }

.et-q-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin: 0 12px 20px;
}
.et-q-head-row { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.et-q-badge { font-size: 0.7rem; font-weight: 700; background: var(--bg-hover); padding: 3px 8px; border-radius: 4px; color: var(--text-muted); }
.et-q-cat-badge { font-size: 0.7rem; font-weight: 600; background: var(--bg-hover); padding: 3px 8px; border-radius: 4px; }

.et-q-text { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 8px; }
.et-q-text p { margin: 0; font-size: 1.15rem; font-weight: 600; line-height: 1.45; }
.et-q-text-en { font-size: 0.98rem; color: var(--text-muted); font-style: italic; margin-bottom: 12px; padding-left: 42px; }

.et-q-card .et-image-block,
.et-study-card .et-image-block {
  margin-top: 0;
}

.et-options { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
.et-opt-btn {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  cursor: pointer;
  font-family: inherit;
  font-size: 1.02rem;
  line-height: 1.45;
  text-align: left;
  transition: all 0.15s;
  box-sizing: border-box;
}
.et-opt-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.et-opt-btn:hover:not(.et-answered) { border-color: var(--accent); background: rgba(var(--accent-rgb, 196, 167, 48), 0.05); }
.et-opt-btn.et-opt-btn-image { align-items: stretch; }
.et-opt-btn .et-opt-letter {
  font-weight: 800;
  font-size: 0.85rem;
  min-width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-hover);
  flex-shrink: 0;
  margin-top: 1px;
}
.et-opt-btn .et-opt-text {
  flex: 1;
  min-width: 0;
}
.et-opt-en { display: block; font-size: 0.8rem; color: var(--text-muted); font-style: italic; margin-top: 2px; }

.et-opt-btn.et-selected { border-color: var(--accent); background: rgba(var(--accent-rgb, 196, 167, 48), 0.08); }
.et-opt-btn.et-answered { cursor: default; opacity: 0.7; }
.et-opt-btn.et-answered.et-correct { opacity: 1; border-color: var(--green); background: rgba(40, 167, 69, 0.08); }
.et-opt-btn.et-answered.et-wrong { opacity: 1; border-color: var(--red); background: rgba(220, 53, 69, 0.08); }
.et-opt-btn.et-answered.et-correct .et-opt-letter { background: var(--green); color: #fff; }
.et-opt-btn.et-answered.et-wrong .et-opt-letter { background: var(--red); color: #fff; }

.et-q-footer { margin-top: 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.et-feedback { flex: 1; }
.et-fb-correct { color: var(--green); font-weight: 700; font-size: 0.95rem; }
.et-fb-wrong { color: var(--red); font-size: 0.9rem; }
.et-fb-wrong strong { color: var(--green); }

/* Mock Exam */
.et-mock { max-width: 700px; margin: 0 auto; }
.et-mock-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 2px solid var(--accent);
  margin-bottom: 8px;
}
.et-mock-title { font-weight: 800; font-size: 1rem; }
.et-mock-timer {
  font-family: 'Courier New', monospace;
  font-size: 1.3rem;
  font-weight: 700;
  background: var(--bg-card);
  padding: 6px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}
.et-mock-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 8px 16px;
  margin-bottom: 8px;
}
.et-mock-dot {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: all 0.1s;
}
.et-mock-dot.active { border-color: var(--accent); background: var(--accent); color: #fff; }
.et-mock-dot.answered { background: var(--bg-hover); }
.et-mock-footer { display: flex; justify-content: space-between; margin-top: 20px; }
.et-finish-btn { background: var(--green) !important; }

/* Results */
.et-results { max-width: 700px; margin: 0 auto; text-align: center; padding: 40px 16px; }
.et-results-icon { font-size: 3rem; margin-bottom: 8px; }
.et-results-score { margin: 16px 0; }
.et-results-big { font-size: 2.5rem; font-weight: 800; }
.et-results-big.et-pass { color: var(--green); }
.et-results-big.et-fail { color: var(--red); }
.et-results-pct { font-size: 1.2rem; color: var(--text-muted); margin-left: 8px; }
.et-results-msg { color: var(--text-muted); margin: 4px 0; }
.et-results-actions { display: flex; gap: 12px; justify-content: center; margin-top: 24px; }

.et-pass-badge {
  display: inline-block;
  padding: 8px 24px;
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.03em;
  margin: 12px 0 8px;
}
.et-pass-badge.et-passed { background: rgba(40, 167, 69, 0.12); color: var(--green); border: 2px solid var(--green); }
.et-pass-badge.et-failed { background: rgba(220, 53, 69, 0.12); color: var(--red); border: 2px solid var(--red); }

.et-review-list { text-align: left; margin-top: 24px; }
.et-review-list h3 { margin-bottom: 12px; }
.et-review-item {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  align-items: flex-start;
}
.et-review-item.et-rev-correct { background: rgba(40, 167, 69, 0.05); }
.et-review-item.et-rev-wrong { background: rgba(220, 53, 69, 0.05); }
.et-rev-num { font-weight: 700; color: var(--text-muted); min-width: 24px; }
.et-rev-body { flex: 1; }
.et-rev-q { font-weight: 600; font-size: 0.85rem; margin-bottom: 4px; }
.et-rev-your { font-size: 0.8rem; color: var(--text-muted); }
.et-rev-correct-ans { font-size: 0.8rem; color: var(--green); font-weight: 600; }
.et-rev-icon { font-size: 1.2rem; font-weight: 700; flex-shrink: 0; }
.et-rev-correct .et-rev-icon { color: var(--green); }
.et-rev-wrong .et-rev-icon { color: var(--red); }

@media (max-width: 768px) {
  .et-stats-bar { grid-template-columns: repeat(2, 1fr); }
  .et-mode-grid { grid-template-columns: 1fr; }
  .et-mode-card-focus { grid-column: auto; }
  .et-focus-summary { grid-template-columns: repeat(2, 1fr); }
  .et-cat-grid { grid-template-columns: repeat(2, 1fr); }
  .et-mock-nav { gap: 3px; }
  .et-mock-dot { width: 24px; height: 24px; font-size: 0.6rem; }
  .et-q-card { padding: 14px; margin: 0 8px 16px; }
  .et-q-text p { font-size: 1.05rem; }
  .et-q-text-en { font-size: 0.9rem; padding-left: 0; margin-bottom: 10px; }
  .et-opt-btn { font-size: 0.95rem; padding: 11px 12px; }
  .et-opt-img { max-height: 150px; }
  .et-question-image .et-image { max-height: min(260px, 42vh); }
}

@media (min-width: 900px) {
  .et-q-text p { font-size: 1.22rem; }
  .et-opt-btn { font-size: 1.06rem; padding: 13px 16px; }
  .et-opt-img { max-height: 220px; }
  .et-practice { max-width: 760px; }
}

/* Profile / welcome */
.et-welcome {
  max-width: 440px;
  margin: 8px auto;
  padding: 0 16px 40px;
  text-align: center;
}
.et-welcome-icon { font-size: 3rem; margin-bottom: 8px; }
.et-welcome h1 { font-size: 1.6rem; margin: 0 0 8px; }
.et-welcome-sub {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.45;
  margin: 0 0 28px;
}
.et-welcome-form {
  text-align: left;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
}
.et-welcome-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}
.et-welcome-input {
  width: 100%;
  box-sizing: border-box;
  font: inherit;
  font-size: 1rem;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
}
.et-welcome-input:focus {
  outline: none;
  border-color: var(--accent);
}
.et-welcome-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 8px 0 16px;
  line-height: 1.4;
}
.et-welcome-error {
  color: var(--red);
  font-size: 0.85rem;
  margin: 0 0 12px;
  min-height: 1.2em;
}
.et-welcome-form .btn {
  width: 100%;
  justify-content: center;
}
.et-welcome-profiles {
  margin-top: 28px;
  text-align: left;
}
.et-welcome-profiles h2 {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 10px;
}
.et-profile-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.et-profile-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  font: inherit;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s, transform 0.15s;
}
.et-profile-btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}
.et-profile-name { font-weight: 700; }
.et-profile-meta { font-size: 0.75rem; color: var(--text-muted); }
.et-profile-delete {
  flex-shrink: 0;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--red);
  border: 1px solid transparent;
}
.et-profile-delete:hover {
  border-color: var(--red);
  background: rgba(220, 53, 69, 0.06);
}
.et-privacy-note {
  margin-top: 24px;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.et-user-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 4px 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  font-size: 0.8rem;
  font-weight: 600;
}
.et-user-chip .user-avatar {
  width: 28px;
  height: 28px;
  font-size: 0.7rem;
  cursor: pointer;
}
.et-switch-user {
  padding: 4px 10px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: var(--radius-full);
}
.et-switch-user:hover {
  color: var(--accent);
  background: var(--bg-hover);
}

.header .logo span.logo-sub {
  font-weight: 500;
  font-size: 0.72rem;
  color: var(--text-muted);
  display: block;
  line-height: 1.1;
}
.logo-text { display: flex; flex-direction: column; gap: 1px; }

@media (max-width: 640px) {
  .header { padding: 0 12px; }
  .logo { font-size: 1rem; }
  .et-welcome { margin-top: 4px; }
}

/* State selector */
.et-state-bar {
  max-width: 520px;
  margin: 0 auto 28px;
  padding: 0 16px;
  text-align: center;
}
.et-state-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.et-state-select {
  width: 100%;
  max-width: 420px;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
}
.et-state-select:focus {
  outline: none;
  border-color: var(--accent);
}
.et-state-hint {
  margin: 8px 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* SEO pages */

.seo-wrap { max-width: 760px; margin: 0 auto; padding: 28px 20px 80px; }
.seo-wrap h1 { font-size: 2rem; line-height: 1.25; margin: 0 0 14px; }
.seo-wrap h2 { font-size: 1.35rem; margin: 36px 0 12px; }
.seo-wrap h3 { font-size: 1.1rem; margin: 24px 0 8px; }
.seo-wrap p, .seo-wrap li { color: var(--text-secondary); line-height: 1.6; font-size: 1.02rem; }
.seo-wrap ul, .seo-wrap ol { padding-left: 1.25rem; margin: 8px 0 16px; }
.seo-lead { font-size: 1.12rem; color: var(--text-secondary); margin-bottom: 22px; }
.seo-cta {
  display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 8px;
}
.seo-note {
  margin-top: 40px; padding: 14px 16px; border-radius: var(--radius-md);
  border: 1px solid var(--border-color); background: var(--bg-card);
  font-size: 0.9rem; color: var(--text-muted);
}
.seo-table { width: 100%; border-collapse: collapse; margin: 12px 0 20px; font-size: 0.98rem; }
.seo-table th, .seo-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border-color); }
.seo-nav { display: none; } /* replaced by header site-nav */
.seo-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 10px; margin: 12px 0 24px;
}
.seo-grid a {
  display: block; padding: 12px 14px; border: 1px solid var(--border-color);
  border-radius: var(--radius-md); background: var(--bg-card); font-size: 0.95rem;
  color: var(--text-primary); text-decoration: none;
}
.seo-grid a:hover { border-color: var(--accent); }
.seo-badge {
  display: inline-block; font-size: 0.8rem; font-weight: 700;
  padding: 5px 12px; border-radius: 999px;
  background: rgba(var(--accent-rgb, 212, 160, 23), 0.12);
  color: var(--accent-dark); margin-bottom: 12px;
}

/* Marketing home */
.seo-home .seo-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 28px 0 8px;
}
.seo-home .seo-stats div {
  text-align: center;
  padding: 16px 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card);
}
.seo-home .seo-stats strong {
  display: block;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-primary);
}
.seo-home .seo-stats span {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.seo-fine { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 24px; }
.seo-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 0;
}
.seo-duo-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  background: var(--bg-card);
}
.seo-duo-card h3 { margin: 0 0 8px; font-size: 1.12rem; }
.seo-duo-card p { margin: 0 0 10px; font-size: 0.98rem; }
.seo-duo-card a,
.seo-duo-card span { font-size: 0.95rem; font-weight: 600; color: var(--accent-dark); }
.seo-duo-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}
.seo-duo-link:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  color: inherit;
}
.seo-steps { font-size: 1.05rem; }
.seo-steps li { margin-bottom: 10px; }
.seo-home-airy .seo-hero {
  padding: 8px 0 8px;
  margin-bottom: 8px;
}
.seo-home-airy h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  letter-spacing: -0.02em;
  max-width: 18ch;
}
.seo-home-airy .seo-lead {
  max-width: 38rem;
  margin-bottom: 28px;
}
.seo-hero-meta {
  margin-top: 22px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.seo-section {
  margin-top: 48px;
  padding-top: 8px;
}
.seo-section h2 {
  margin-top: 0;
  margin-bottom: 16px;
}
.seo-section-quiet {
  margin-top: 56px;
  border-top: 1px solid var(--border-color);
  padding-top: 28px;
}
.seo-home-airy .seo-note {
  margin-top: 24px;
}
.et-mock-meta { font-size: 0.88rem !important; color: var(--text-muted) !important; }

/* Header site nav */
.site-nav-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.site-nav-link:hover { color: var(--text-primary); background: var(--bg-hover); }
.site-nav-link.is-active { color: var(--text-primary); }
.site-nav-cta {
  background: var(--accent);
  color: #1a1a2e !important;
  padding: 8px 14px !important;
  border-radius: var(--radius-full);
}
.site-nav-cta:hover { background: var(--accent-light); color: #1a1a2e !important; }
.nav-right { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
@media (max-width: 720px) {
  .site-nav-link:not(.site-nav-cta) { display: none; }
  .header-inner { gap: 8px; }
  .seo-home .seo-stats { grid-template-columns: repeat(2, 1fr); }
  .seo-duo { grid-template-columns: 1fr; }
  .seo-wrap h1 { font-size: 1.65rem; }
  .main-content { padding: 8px 14px 56px; }
}
.legal-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  margin: 16px 0;
  font-size: 0.9rem;
}