/* ── RBT Quiz Plugin ── emmajchapman.com ── v2.7 ── */

/* ── Variables ── */
.rbt-quiz-container {
  --rbt-navy:      #1B3664;
  --rbt-navy-dk:   #122548;
  --rbt-gold:      #C9A227;
  --rbt-gold-dk:   #A8841E;
  --rbt-gold-lt:   #FFF8E1;
  --rbt-green:     #158035;
  --rbt-green-lt:  #dcfce7;
  --rbt-red:       #C0392B;
  --rbt-red-lt:    #fee2e2;
  --rbt-text:      #1A1A2E;
  --rbt-muted:     #6B7280;
  --rbt-border:    #E5E9F0;
  --rbt-bg:        #F4F7FC;
  --rbt-white:     #ffffff;
  --rbt-shadow:    0 2px 16px rgba(27,54,100,.08);
  --rbt-radius:    14px;
  --rbt-radius-sm: 10px;
  --rbt-font:      -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, Helvetica, Arial, sans-serif;
}

/* ── Base ── */
.rbt-quiz-container {
  max-width: 860px;
  margin: 40px auto;
  padding: 0 16px;
  font-family: var(--rbt-font) !important;
  font-size: 16px;
  color: var(--rbt-text);
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}
.rbt-quiz-container *,
.rbt-quiz-container *::before,
.rbt-quiz-container *::after { box-sizing: inherit; font-family: var(--rbt-font) !important; }
.rbt-quiz-container code, .rbt-quiz-container pre { font-family: monospace !important; }
.rbt-quiz-screen         { display: none; }
.rbt-quiz-screen.active  { display: block; }

/* Hide: domain list, form fields, timer, badges, question grid */
.rbt-exam-domains, .rbt-user-form .rbt-form-group,
.rbt-timer, .rbt-question-header,
.rbt-question-grid, .rbt-grid-legend { display: none !important; }
.rbt-user-form { margin-top: 0; }

/* ── Welcome card ── */
.rbt-quiz-card {
  background: var(--rbt-white);
  border-radius: var(--rbt-radius);
  box-shadow: var(--rbt-shadow);
  border: 1px solid var(--rbt-border);
  padding: 44px;
}
.rbt-quiz-card h2 {
  margin: 0 0 8px;
  font-size: clamp(22px,4vw,28px);
  font-weight: 800;
  color: var(--rbt-navy);
  line-height: 1.2;
  letter-spacing: -.02em;
}
.rbt-subtitle {
  color: var(--rbt-muted);
  font-size: 15px;
  margin: 0 0 28px;
  line-height: 1.5;
}
.rbt-welcome-screen .rbt-quiz-card { border-top: 4px solid var(--rbt-gold); }

/* ══════════════════════════════════════
   MODE SELECTOR
══════════════════════════════════════ */
.rbt-mode-selector { margin-bottom: 28px; }

/* ── Tabs ── */
.rbt-mode-tabs {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 12px !important;
  margin-bottom: 16px !important;
}

/* Force tab to be a vertical flex column — override any theme flex */
.rbt-mode-tab {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 6px !important;
  padding: 22px 20px !important;
  border: 2px solid var(--rbt-border) !important;
  border-radius: var(--rbt-radius-sm) !important;
  background: var(--rbt-white) !important;
  cursor: pointer !important;
  transition: border-color .18s, background .18s, box-shadow .18s !important;
  text-align: center !important;
  text-decoration: none !important;
  min-height: 110px !important;
  width: 100% !important;
  box-sizing: border-box !important;
  color: var(--rbt-text) !important;
  box-shadow: none !important;
}
.rbt-mode-tab:hover {
  border-color: var(--rbt-gold) !important;
  background: var(--rbt-gold-lt) !important;
  box-shadow: 0 2px 12px rgba(201,162,39,.15) !important;
}
.rbt-mode-tab.active {
  border-color: var(--rbt-navy) !important;
  background: rgba(27,54,100,.05) !important;
  box-shadow: 0 0 0 3px rgba(27,54,100,.10) !important;
}

/* Tab inner elements — must be block-level so they stack */
.rbt-tab-icon {
  display: block !important;
  font-size: 28px !important;
  line-height: 1 !important;
  margin-bottom: 2px !important;
}
.rbt-tab-title {
  display: block !important;
  font-size: 16px !important;
  font-weight: 800 !important;
  color: var(--rbt-navy) !important;
  line-height: 1.2 !important;
  margin-bottom: 4px !important;
}
.rbt-tab-sub {
  display: block !important;
  font-size: 12px !important;
  color: var(--rbt-muted) !important;
  font-weight: 500 !important;
  line-height: 1.4 !important;
  max-width: 160px !important;
  margin: 0 auto !important;
}

/* ── Count panel ── */
.rbt-counts-panel {
  background: var(--rbt-bg);
  border: 1px solid var(--rbt-border);
  border-radius: var(--rbt-radius-sm);
  padding: 20px 22px;
}
.rbt-counts-label {
  font-size: 12px !important;
  font-weight: 700 !important;
  text-transform: uppercase !important;
  letter-spacing: .06em !important;
  color: var(--rbt-muted) !important;
  margin: 0 0 12px !important;
  display: block !important;
}
.rbt-count-btns {
  display: flex !important;
  gap: 10px !important;
  flex-wrap: wrap !important;
  margin-bottom: 18px !important;
}
.rbt-count-btn {
  padding: 11px 24px !important;
  border: 2px solid var(--rbt-border) !important;
  border-radius: var(--rbt-radius-sm) !important;
  background: var(--rbt-white) !important;
  font-size: 15px !important;
  font-weight: 700 !important;
  color: var(--rbt-navy) !important;
  cursor: pointer !important;
  transition: border-color .15s, background .15s, color .15s !important;
  text-decoration: none !important;
  box-shadow: none !important;
}
.rbt-count-btn:hover {
  border-color: var(--rbt-gold) !important;
  background: var(--rbt-gold-lt) !important;
  color: var(--rbt-navy-dk) !important;
  box-shadow: none !important;
}
.rbt-count-btn.active {
  background: var(--rbt-navy) !important;
  color: var(--rbt-white) !important;
  border-color: var(--rbt-navy) !important;
  box-shadow: 0 2px 10px rgba(27,54,100,.2) !important;
}

/* ── Feature list ── */
.rbt-feature-list {
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 6px !important;
}
.rbt-feature-list li {
  font-size: 13px !important;
  color: var(--rbt-muted) !important;
  padding-left: 20px !important;
  position: relative !important;
  line-height: 1.5 !important;
}
.rbt-feature-list li::before {
  content: '\2713' !important;
  position: absolute !important;
  left: 0 !important;
  color: var(--rbt-green) !important;
  font-weight: 700 !important;
}

/* ── Mode badge in progress header ── */
.rbt-mode-badge {
  display: inline-flex !important;
  align-items: center !important;
  padding: 3px 10px !important;
  border-radius: 100px !important;
  font-size: 11px !important;
  font-weight: 700 !important;
  letter-spacing: .04em !important;
  text-transform: uppercase !important;
}
.rbt-badge-study {
  background: var(--rbt-gold-lt) !important;
  color: var(--rbt-gold-dk) !important;
  border: 1px solid rgba(201,162,39,.3) !important;
}
.rbt-badge-exam {
  background: rgba(27,54,100,.08) !important;
  color: var(--rbt-navy) !important;
  border: 1px solid rgba(27,54,100,.15) !important;
}

/* ── Progress header ── */
.rbt-quiz-header {
  background: var(--rbt-white);
  border-radius: var(--rbt-radius);
  border: 1px solid var(--rbt-border);
  box-shadow: var(--rbt-shadow);
  padding: 18px 24px;
  margin-bottom: 14px;
}
.rbt-progress-text {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--rbt-navy);
}
.rbt-progress-text span:nth-child(2) {
  font-size: 13px;
  font-weight: 600;
  color: var(--rbt-muted);
}
.rbt-progress-bar {
  height: 8px;
  background: var(--rbt-border);
  border-radius: 100px;
  overflow: hidden;
}
.rbt-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--rbt-gold), #F0C84A);
  border-radius: 100px;
  transition: width .4s cubic-bezier(.4,0,.2,1);
}

/* ── Buttons ── */
.rbt-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px;
  border: 2px solid transparent;
  border-radius: var(--rbt-radius-sm);
  font-size: 15px; font-weight: 700; letter-spacing: -.01em;
  cursor: pointer;
  transition: background .18s, border-color .18s, transform .15s, box-shadow .18s;
  text-decoration: none; white-space: nowrap; line-height: 1.3;
  -webkit-appearance: none;
}
.rbt-btn:disabled { opacity: .4; cursor: not-allowed; transform: none !important; }
.rbt-btn-primary  { background: var(--rbt-navy); color: var(--rbt-white); box-shadow: 0 4px 14px rgba(27,54,100,.22); }
.rbt-btn-primary:hover:not(:disabled) { background: var(--rbt-navy-dk); transform: translateY(-2px); }
.rbt-btn-secondary { background: var(--rbt-white); color: var(--rbt-navy); border-color: var(--rbt-border); }
.rbt-btn-secondary:hover:not(:disabled) { border-color: var(--rbt-navy); background: var(--rbt-bg); }
.rbt-btn-success { background: var(--rbt-green); color: var(--rbt-white); box-shadow: 0 4px 14px rgba(21,128,61,.22); }
.rbt-btn-success:hover:not(:disabled) { background: #0f6128; transform: translateY(-2px); }

/* Nav buttons — gold */
.rbt-quiz-navigation .rbt-btn-primary,
.rbt-quiz-navigation .rbt-btn-secondary {
  background: var(--rbt-gold) !important; color: var(--rbt-navy-dk) !important;
  border-color: var(--rbt-gold) !important; box-shadow: 0 4px 14px rgba(201,162,39,.28) !important;
}
.rbt-quiz-navigation .rbt-btn-primary:hover:not(:disabled),
.rbt-quiz-navigation .rbt-btn-secondary:hover:not(:disabled) {
  background: var(--rbt-gold-dk) !important; border-color: var(--rbt-gold-dk) !important;
  transform: translateY(-2px) !important; box-shadow: 0 6px 20px rgba(201,162,39,.36) !important;
}
.rbt-quiz-navigation .rbt-btn-secondary:disabled {
  background: var(--rbt-bg) !important; border-color: var(--rbt-border) !important;
  color: var(--rbt-muted) !important; box-shadow: none !important;
}
.rbt-quiz-navigation .rbt-btn-success {
  background: var(--rbt-green) !important; color: var(--rbt-white) !important;
  border-color: var(--rbt-green) !important; box-shadow: 0 4px 14px rgba(21,128,61,.22) !important;
}
.rbt-quiz-navigation .rbt-btn-success:hover:not(:disabled) {
  background: #0f6128 !important; border-color: #0f6128 !important; transform: translateY(-2px) !important;
}

/* Start / Retake — gold CTA */
.rbt-btn-primary.rbt-start-quiz,
.rbt-btn-primary.rbt-retake-btn {
  background: var(--rbt-gold) !important; color: var(--rbt-navy-dk) !important;
  border-color: var(--rbt-gold) !important; box-shadow: 0 4px 16px rgba(201,162,39,.32) !important;
  width: 100% !important; padding: 17px 28px !important; font-size: 16px !important;
  border-radius: var(--rbt-radius) !important;
}
.rbt-btn-primary.rbt-start-quiz:hover:not(:disabled),
.rbt-btn-primary.rbt-retake-btn:hover:not(:disabled) {
  background: var(--rbt-gold-dk) !important; border-color: var(--rbt-gold-dk) !important;
  transform: translateY(-2px) !important; box-shadow: 0 6px 22px rgba(201,162,39,.38) !important;
}

/* ── Question card ── */
.rbt-question-container {
  background: var(--rbt-white);
  border-radius: var(--rbt-radius);
  border: 1px solid var(--rbt-border);
  box-shadow: var(--rbt-shadow);
  padding: 36px 40px;
  margin-bottom: 14px;
  min-height: 260px;
}
.rbt-question-text {
  font-size: 18px; line-height: 1.7; color: var(--rbt-text);
  margin-bottom: 28px; font-weight: 500; letter-spacing: -.01em;
}
.rbt-question-text strong { color: var(--rbt-navy); font-weight: 800; margin-right: 4px; }

/* ── Options ── */
.rbt-options { display: flex; flex-direction: column; gap: 10px; }
.rbt-option {
  display: flex; align-items: center;
  padding: 15px 18px;
  border: 2px solid var(--rbt-border);
  border-radius: var(--rbt-radius-sm);
  cursor: pointer;
  transition: border-color .15s, background .15s, box-shadow .15s, transform .12s;
  user-select: none; -webkit-user-select: none;
  background: var(--rbt-white);
}
.rbt-option:hover {
  border-color: var(--rbt-gold);
  background: var(--rbt-gold-lt);
  transform: translateX(3px);
}
.rbt-option:has(input:checked) {
  border-color: var(--rbt-navy);
  background: rgba(27,54,100,.04);
  box-shadow: 0 0 0 3px rgba(27,54,100,.08);
}
/* Study mode: correct/incorrect highlighting */
.rbt-option.rbt-opt-correct {
  border-color: var(--rbt-green) !important;
  background: var(--rbt-green-lt) !important;
  box-shadow: 0 0 0 3px rgba(21,128,53,.12) !important;
  transform: none !important;
}
.rbt-option.rbt-opt-incorrect {
  border-color: var(--rbt-red) !important;
  background: var(--rbt-red-lt) !important;
  box-shadow: 0 0 0 3px rgba(192,57,43,.12) !important;
  transform: none !important;
}
.rbt-option input[type="radio"] {
  margin: 0 14px 0 0; width: 19px; height: 19px; min-width: 19px;
  cursor: pointer; accent-color: var(--rbt-navy); flex-shrink: 0;
}
.rbt-option-text { flex: 1; font-size: 15px; line-height: 1.55; color: var(--rbt-text); font-weight: 500; }

/* ══════════════════════════════════════
   FEEDBACK CARD (Study Mode)
══════════════════════════════════════ */
.rbt-feedback {
  margin-top: 18px;
  padding: 20px 22px;
  border-radius: var(--rbt-radius-sm);
  border-left: 4px solid;
  animation: rbt-fade-in .25s ease;
}
@keyframes rbt-fade-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.rbt-fb-ok  { background: var(--rbt-green-lt); border-color: var(--rbt-green); }
.rbt-fb-no  { background: var(--rbt-red-lt);   border-color: var(--rbt-red); }
.rbt-fb-header {
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
  margin-bottom: 8px !important;
}
.rbt-fb-icon {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 28px; height: 28px;
  border-radius: 50%;
  font-size: 15px; font-weight: 900;
  flex-shrink: 0;
}
.rbt-fb-ok .rbt-fb-icon { background: var(--rbt-green); color: #fff; }
.rbt-fb-no .rbt-fb-icon { background: var(--rbt-red);   color: #fff; }
.rbt-fb-title {
  font-size: 16px !important;
  font-weight: 800 !important;
}
.rbt-fb-ok .rbt-fb-title { color: var(--rbt-green) !important; }
.rbt-fb-no .rbt-fb-title { color: var(--rbt-red)   !important; }
.rbt-fb-correct-ans {
  font-size: 14px;
  color: var(--rbt-text);
  margin-bottom: 10px;
  padding: 8px 12px;
  background: rgba(255,255,255,.6);
  border-radius: 8px;
}
.rbt-fb-explanation {
  font-size: 14px;
  line-height: 1.65;
  color: var(--rbt-text);
  padding-top: 10px;
  border-top: 1px solid rgba(0,0,0,.08);
}

/* Study mode nudge on results */
.rbt-mode-nudge {
  background: rgba(27,54,100,.04);
  border: 1px solid rgba(27,54,100,.12);
  border-radius: var(--rbt-radius-sm);
  padding: 14px 18px;
  font-size: 14px;
  color: var(--rbt-navy);
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.6;
}

/* ── Navigation row ── */
.rbt-quiz-navigation {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; margin-bottom: 14px;
}
.rbt-quiz-navigation .rbt-btn { min-width: 130px; }

/* ── Results ── */
.rbt-results-header { text-align: center; margin-bottom: 36px; }
.rbt-results-header h2 {
  font-size: clamp(22px,4vw,30px); font-weight: 800; color: var(--rbt-navy);
  margin: 0 0 18px; letter-spacing: -.02em;
}
.rbt-pass-badge, .rbt-fail-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 40px; border-radius: var(--rbt-radius);
  font-size: 20px; font-weight: 800; letter-spacing: .01em;
}
.rbt-pass-badge { background: var(--rbt-gold); color: var(--rbt-navy-dk); box-shadow: 0 4px 20px rgba(201,162,39,.32); }
.rbt-fail-badge { background: var(--rbt-bg); color: var(--rbt-red); border: 2px solid var(--rbt-red); }
.rbt-results-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr));
  gap: 14px; margin-bottom: 36px;
}
.rbt-stat {
  background: var(--rbt-bg); padding: 22px 16px;
  border-radius: var(--rbt-radius-sm); border: 1px solid var(--rbt-border); text-align: center;
}
.rbt-stat-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--rbt-muted); margin-bottom: 8px; }
.rbt-stat-value { font-size: 30px; font-weight: 800; color: var(--rbt-navy); line-height: 1; }
.rbt-results-breakdown { margin-bottom: 36px; }
.rbt-results-breakdown h3, .rbt-results-review h3 {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .08em; color: var(--rbt-muted); margin: 0 0 16px;
}
.rbt-domain-stat { margin-bottom: 18px; }
.rbt-domain-name  { font-size: 14px; font-weight: 700; color: var(--rbt-navy); margin-bottom: 4px; }
.rbt-domain-score { font-size: 13px; color: var(--rbt-muted); margin-bottom: 7px; }
.rbt-domain-bar   { height: 8px; background: var(--rbt-border); border-radius: 100px; overflow: hidden; }
.rbt-domain-fill  { height: 100%; background: linear-gradient(90deg, var(--rbt-gold), #F0C84A); border-radius: 100px; transition: width .6s cubic-bezier(.4,0,.2,1); }

/* ── Answer review (Exam mode) ── */
.rbt-answer-item {
  padding: 20px; margin-bottom: 14px;
  border: 1px solid var(--rbt-border);
  border-left: 4px solid var(--rbt-green);
  border-radius: 0 var(--rbt-radius-sm) var(--rbt-radius-sm) 0;
  background: var(--rbt-bg);
}
.rbt-answer-item.incorrect { border-left-color: var(--rbt-red); }
.rbt-answer-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; flex-wrap: wrap; gap: 8px; }
.rbt-answer-number { font-size: 12px; font-weight: 700; color: var(--rbt-muted); text-transform: uppercase; letter-spacing: .06em; }
.rbt-answer-badge { display: inline-flex; align-items: center; gap: 4px; padding: 4px 12px; border-radius: 100px; font-size: 12px; font-weight: 700; }
.rbt-answer-badge.correct   { background: var(--rbt-green-lt); color: var(--rbt-green); }
.rbt-answer-badge.incorrect { background: var(--rbt-red-lt); color: var(--rbt-red); }
.rbt-answer-question { font-size: 15px; line-height: 1.6; color: var(--rbt-text); margin-bottom: 14px; font-weight: 500; }
.rbt-answer-details { background: var(--rbt-white); padding: 14px 16px; border-radius: var(--rbt-radius-sm); border: 1px solid var(--rbt-border); }
.rbt-answer-line { font-size: 14px; margin-bottom: 8px; color: var(--rbt-text); }
.rbt-answer-line:last-child { margin-bottom: 0; }
.correct-text   { color: var(--rbt-green); font-weight: 700; }
.incorrect-text { color: var(--rbt-red);   font-weight: 700; }
.rbt-answer-explanation { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--rbt-border); font-size: 14px; color: var(--rbt-muted); line-height: 1.65; }
.rbt-results-actions { text-align: center; margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--rbt-border); }

/* ── Loading spinner ── */
.rbt-loading { text-align: center; padding: 56px 24px; color: var(--rbt-muted); font-size: 15px; }
.rbt-loading::before {
  content: ''; display: block; width: 38px; height: 38px;
  border: 3px solid var(--rbt-border); border-top-color: var(--rbt-gold);
  border-radius: 50%; margin: 0 auto 18px;
  animation: rbtSpin .7s linear infinite;
}
@keyframes rbtSpin { to { transform: rotate(360deg); } }

/* ── Mobile ── */
@media (max-width: 640px) {
  .rbt-quiz-card          { padding: 24px 18px; }
  .rbt-quiz-header        { padding: 14px 18px; }
  .rbt-question-container { padding: 24px 18px; min-height: 0; }
  .rbt-question-text      { font-size: 16px; margin-bottom: 20px; }
  .rbt-option             { padding: 13px 14px; }
  .rbt-option-text        { font-size: 14px; }
  .rbt-mode-tabs          { grid-template-columns: minmax(0, 1fr) !important; gap: 12px !important; }
  .rbt-mode-tab           { padding: 18px 14px !important; min-height: 96px !important; min-width: 0 !important; }
  .rbt-tab-icon           { font-size: 22px !important; }
  .rbt-tab-title          { font-size: 13px !important; }
  .rbt-tab-sub            { font-size: 11px !important; }
  .rbt-count-btns         { gap: 8px !important; }
  .rbt-count-btn          { padding: 9px 16px !important; font-size: 14px !important; }
  .rbt-quiz-navigation    { gap: 10px; }
  .rbt-quiz-navigation .rbt-btn { flex: 1; min-width: 0; padding: 13px 12px; font-size: 14px; }
  .rbt-pass-badge, .rbt-fail-badge { padding: 12px 24px; font-size: 17px; }
  .rbt-stat-value         { font-size: 26px; }
  .rbt-feedback           { padding: 16px 16px; }
}
@media (max-width: 400px) {
  .rbt-results-stats { grid-template-columns: 1fr 1fr; }
  .rbt-mode-tabs     { grid-template-columns: minmax(0, 1fr) !important; }
}

/* ── Domain quiz welcome card spacing ── */
.rbt-domain-welcome {
  padding: 48px 48px 44px;
}
.rbt-domain-welcome h2 {
  margin: 0 0 14px;
  font-size: clamp(24px,4vw,32px);
}
.rbt-domain-welcome .rbt-subtitle {
  margin: 0 0 28px;
  font-size: 15px;
}
.rbt-domain-welcome .rbt-feature-list {
  gap: 12px !important;
  margin-bottom: 36px !important;
}
.rbt-domain-welcome .rbt-feature-list li {
  font-size: 14px !important;
  line-height: 1.6 !important;
}
.rbt-domain-welcome .rbt-btn-primary.rbt-start-quiz {
  margin-top: 4px !important;
}

@media (max-width: 640px) {
  .rbt-domain-welcome { padding: 28px 22px 26px; }
}

/* ── Keyboard accessibility ── */
.rbt-btn:focus-visible,
.rbt-mode-tab:focus-visible,
.rbt-count-btn:focus-visible,
.rbt-option:focus-visible {
  outline: 3px solid var(--rbt-gold);
  outline-offset: 2px;
}