:root {
  --primary: #0f766e;
  --primary-dark: #0a4f49;
  --primary-soft: #dff3ee;
  --accent: #d97706;
  --accent-dark: #92400e;
  --success: #2f855a;
  --danger: #b42318;
  --warning: #a15c07;
  --bg: #eee8da;
  --card: #fbf5e8;
  --card-strong: #fffaf0;
  --text: #17232b;
  --muted: #68717a;
  --border: #d8cfc0;
  --soft: #edf7f2;
  --shadow: 0 14px 30px rgba(55, 45, 31, 0.12);
  --shadow-strong: 0 22px 52px rgba(55, 45, 31, 0.20);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 620px at 50% -180px, rgba(15, 118, 110, 0.20), transparent 62%),
    radial-gradient(900px 520px at 100% 0, rgba(217, 119, 6, 0.15), transparent 58%),
    linear-gradient(180deg, #f7efe2 0%, var(--bg) 46%, #e7efe8 100%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}

button, select, input {
  font: inherit;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.app-shell {
  max-width: 1160px;
  margin: 0 auto;
  padding: 22px 24px 32px;
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.app-header {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr minmax(260px, 320px);
  align-items: center;
  gap: 22px;
  min-height: 132px;
  padding: 28px 32px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(16, 47, 45, 0.98) 0%, rgba(16, 85, 78, 0.96) 58%, rgba(138, 84, 29, 0.96) 100%);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: var(--shadow-strong);
}

.app-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.10), rgba(255,255,255,0) 34%),
    repeating-linear-gradient(135deg, rgba(255,255,255,0.08) 0 1px, transparent 1px 14px);
  opacity: 0.28;
  pointer-events: none;
}

.app-header > * {
  position: relative;
}

.app-header h1,
.quiz-header h1,
.result-card h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: 0;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
  color: #f1c36d;
}

.bank-select-wrap {
  justify-self: end;
  width: min(100%, 320px);
  min-width: 240px;
}

.bank-select-wrap label {
  display: block;
  margin-bottom: 6px;
  color: #d8eee8;
  font-size: 13px;
}

.bank-select-wrap select,
.fill-input {
  width: 100%;
  border: 1px solid rgba(15, 118, 110, 0.22);
  border-radius: 6px;
  background: #fffaf0;
  color: var(--text);
  padding: 11px 12px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.75), 0 8px 18px rgba(16, 47, 45, 0.12);
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.bank-select-wrap select:hover,
.fill-input:hover {
  border-color: rgba(15, 118, 110, 0.42);
  background: #fffdf8;
}

.bank-select-wrap select:focus,
.fill-input:focus {
  outline: none;
  border-color: rgba(15, 118, 110, 0.70);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.16), 0 10px 20px rgba(16, 47, 45, 0.14);
}

.status-message {
  margin: 14px 0;
  color: var(--muted);
}

.status-message:empty {
  display: none;
}

.status-message.error {
  color: var(--danger);
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 16px 0 26px;
}

.stat-card,
.result-detail article {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, var(--card-strong) 0%, var(--card) 100%);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 18px 16px;
  text-align: left;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.stat-card:hover {
  border-color: rgba(15, 118, 110, 0.24);
  box-shadow: var(--shadow-strong);
  transform: translateY(-1px);
}

.stat-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: var(--primary);
}

.stat-card.danger::before { background: var(--danger); }
.stat-card.warning::before { background: var(--accent); }

.stat-card strong,
.result-detail strong {
  display: block;
  color: var(--primary);
  font-size: 36px;
  line-height: 1;
}

.stat-card span,
.result-detail span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.stat-card.danger strong { color: var(--danger); }
.stat-card.warning strong { color: var(--warning); }

.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0 12px;
  font-size: 19px;
  letter-spacing: 0;
}

.section-title::after {
  content: "";
  height: 1px;
  flex: 1 1 auto;
  background: linear-gradient(90deg, rgba(15, 118, 110, 0.28), transparent);
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(248px, 1fr));
  gap: 12px;
}

.mode-card {
  position: relative;
  overflow: hidden;
  display: flex;
  min-height: 126px;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(180deg, rgba(255,250,240,0.96) 0%, rgba(251,245,232,0.98) 100%);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 17px;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.mode-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.mode-card:hover {
  border-color: rgba(15, 118, 110, 0.38);
  box-shadow: var(--shadow-strong);
  transform: translateY(-4px);
  background:
    linear-gradient(180deg, rgba(255,253,248,1) 0%, rgba(248,242,229,1) 100%);
}

.mode-card:focus-within {
  outline: 3px solid rgba(15, 118, 110, 0.20);
  outline-offset: 3px;
  border-color: rgba(15, 118, 110, 0.56);
  box-shadow: var(--shadow-strong);
}

.mode-card:active {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(55, 45, 31, 0.14);
}

.mode-card:hover::before,
.mode-card:focus-within::before {
  height: 6px;
}

.mode-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.mode-card h3 {
  margin: 0;
  font-size: 19px;
  line-height: 1.25;
}

.count-pill {
  flex: 0 0 auto;
  border: 1px solid rgba(15, 118, 110, 0.16);
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  padding: 5px 10px;
  font-size: 13px;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.75);
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.mode-card:hover .count-pill {
  background: var(--primary);
  border-color: var(--primary);
  color: #fffaf0;
  transform: translateY(-1px);
}

.mode-card:focus-within .count-pill {
  background: var(--primary);
  border-color: var(--primary);
  color: #fffaf0;
  transform: translateY(-1px);
}

.mode-card p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
}

.mode-actions,
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn,
.icon-button,
.text-button {
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}

.btn {
  min-height: 42px;
  padding: 10px 16px;
  color: #fff;
  background: linear-gradient(180deg, #11857c 0%, var(--primary) 100%);
  font-weight: 700;
  box-shadow: 0 8px 16px rgba(15, 118, 110, 0.20), inset 0 1px 0 rgba(255,255,255,0.18);
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, border-color 0.16s ease;
  white-space: nowrap;
}

.btn:hover,
.icon-button:hover,
.text-button:hover {
  filter: none;
}

.btn:hover {
  box-shadow: 0 12px 24px rgba(15, 118, 110, 0.26), inset 0 1px 0 rgba(255,255,255,0.24);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(1px);
  box-shadow: 0 4px 10px rgba(15, 118, 110, 0.18), inset 0 2px 5px rgba(0,0,0,0.16);
}

.btn:focus-visible,
.icon-button:focus-visible,
.text-button:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.24);
  outline-offset: 3px;
}

button:disabled:hover {
  box-shadow: none;
  transform: none;
}

.btn.secondary {
  background: linear-gradient(180deg, #f7f3ea 0%, #ece5d8 100%);
  border: 1px solid #d8cfc0;
  color: var(--text);
  box-shadow: 0 6px 14px rgba(55, 45, 31, 0.08), inset 0 1px 0 rgba(255,255,255,0.60);
}

.btn.success { background: linear-gradient(180deg, #38a169 0%, var(--success) 100%); }
.btn.danger { background: linear-gradient(180deg, #cf3d2f 0%, var(--danger) 100%); }
.btn.warning { background: linear-gradient(180deg, #c47a14 0%, var(--warning) 100%); }
.btn.primary { background: linear-gradient(180deg, #11857c 0%, var(--primary) 100%); }

.quiz-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.text-button {
  background: transparent;
  color: var(--primary);
  padding: 8px 0;
  transition: color 0.16s ease, transform 0.16s ease;
}

.text-button:hover {
  color: var(--primary-dark);
  transform: translateY(-1px);
}

.icon-button {
  width: 44px;
  height: 44px;
  background: var(--card-strong);
  border: 1px solid var(--border);
  color: var(--warning);
  font-size: 24px;
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.icon-button:hover {
  border-color: rgba(217, 119, 6, 0.42);
  box-shadow: 0 8px 18px rgba(55, 45, 31, 0.12);
  transform: translateY(-1px);
}

.icon-button:active {
  transform: translateY(1px);
}

.icon-button.active {
  background: #fff7df;
  border-color: #f4d26e;
}

.progress-wrap,
.question-card,
.navigator,
.result-card,
.list-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.progress-wrap {
  padding: 14px;
  margin-bottom: 14px;
}

.progress-text {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.progress-bar {
  height: 8px;
  background: #e5ebe4;
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 0.2s ease;
}

.question-card {
  padding: 18px;
}

.q-badge {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}

.q-text {
  margin: 0 0 16px;
  font-size: 19px;
  font-weight: 700;
}

.options,
.tf-group {
  display: grid;
  gap: 10px;
}

.opt-btn,
.tf-btn {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #fffaf0;
  color: var(--text);
  cursor: pointer;
  padding: 12px;
  text-align: left;
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.tf-btn {
  text-align: center;
}

.opt-btn:hover,
.tf-btn:hover {
  border-color: rgba(15, 118, 110, 0.40);
  background: #fffdf8;
  box-shadow: 0 8px 18px rgba(55, 45, 31, 0.08);
  transform: translateY(-1px);
}

.opt-btn:active,
.tf-btn:active {
  transform: translateY(1px);
}

.opt-btn.correct,
.tf-btn.correct {
  border-color: #78c59b;
  background: #e9f8ef;
  color: #116a44;
}

.opt-btn.wrong,
.tf-btn.wrong {
  border-color: #ef9a9a;
  background: #fff0f0;
  color: #a12d2d;
}

.opt-btn.disabled,
.tf-btn.disabled {
  cursor: default;
}

.fill-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.answer-box {
  display: none;
  margin-top: 16px;
  border-left: 4px solid var(--primary);
  background: #f3f8f4;
  padding: 14px;
}

.answer-box.show {
  display: block;
}

.answer-box h2 {
  margin: 0 0 8px;
  font-size: 15px;
}

.answer-box pre,
.short-answer {
  margin: 0;
  white-space: pre-wrap;
  color: var(--text);
  font-family: inherit;
}

.action-bar {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin: 14px 0;
}

.navigator {
  padding: 14px;
}

.navigator h2 {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 14px;
}

.nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(38px, 1fr));
  gap: 8px;
}

.nav-item {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fffaf0;
  color: var(--text);
  cursor: pointer;
  padding: 8px 0;
  text-align: center;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease;
}

.nav-item:hover {
  border-color: rgba(15, 118, 110, 0.36);
  background: #fffdf8;
  box-shadow: 0 6px 14px rgba(55, 45, 31, 0.08);
  transform: translateY(-1px);
}

.nav-item:active {
  transform: translateY(1px);
}

.nav-item.current {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
}

.nav-item.right {
  background: #e9f8ef;
  border-color: #78c59b;
}

.nav-item.wrong {
  background: #fff0f0;
  border-color: #ef9a9a;
}

.result-card {
  padding: 28px;
  text-align: center;
}

.result-score {
  margin: 18px 0;
  color: var(--primary);
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
}

.result-detail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.result-actions {
  justify-content: center;
}

.list-area {
  display: grid;
  gap: 12px;
}

.list-card {
  padding: 16px;
}

.list-card h2 {
  margin: 0 0 8px;
  font-size: 17px;
}

.list-card pre {
  white-space: pre-wrap;
  font-family: inherit;
  color: var(--muted);
}

.empty-state {
  padding: 26px;
  text-align: center;
  color: var(--muted);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
}

@media (max-width: 680px) {
  .app-shell { padding: 10px; }
  .app-header {
    display: block;
    padding: 18px;
    min-height: 0;
  }
  .bank-select-wrap {
    margin-top: 14px;
    width: 100%;
    min-width: 0;
  }
  .stats-bar,
  .result-detail {
    grid-template-columns: 1fr;
  }
  .quiz-header {
    grid-template-columns: auto 1fr auto;
  }
  .quiz-header h1,
  .app-header h1 {
    font-size: 22px;
  }
  .fill-row,
  .action-bar {
    display: grid;
    grid-template-columns: 1fr;
  }
}