/* ======================================================================
   EXAM PREP — Michigan Real Estate License practice tool
   ====================================================================== */
.exam-container { padding: 20px; max-width: 1100px; margin: 0 auto; width: 100%; }
.exam-loading { text-align: center; padding: 60px 20px; color: var(--text-3); font-size: 14px; }

/* Landing */
.exam-landing { display: flex; flex-direction: column; gap: 24px; }
.exam-hero { padding: 24px 28px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 14px; }
.exam-hero h2 { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 8px; }
.exam-sub { color: var(--text-2); font-size: 14px; line-height: 1.55; margin: 0 0 12px; }
.exam-disclaimer { font-size: 12px; color: var(--text-3); padding: 10px 14px; background: rgba(240,192,64,0.08); border-left: 3px solid #f0c040; border-radius: 4px; margin: 0; }

.exam-modes { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.exam-mode-card { padding: 22px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 14px; text-align: left; cursor: pointer; transition: all 0.2s; color: var(--text); }
.exam-mode-card:hover { border-color: var(--blue); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(74,144,212,0.15); }
.exam-mode-mock { border-color: rgba(82,196,122,0.3); background: linear-gradient(135deg, var(--surface-1), rgba(82,196,122,0.05)); }
.exam-mode-mock:hover { border-color: #52c47a; box-shadow: 0 8px 24px rgba(82,196,122,0.15); }
.exam-mode-icon { font-size: 26px; margin-bottom: 8px; }
.exam-mode-title { font-size: 16px; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 6px; }
.exam-mode-desc { font-size: 12px; color: var(--text-3); line-height: 1.5; }

.exam-meta-row { display: flex; align-items: center; gap: 16px; padding: 14px 18px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 10px; font-size: 13px; color: var(--text-2); flex-wrap: wrap; }
.exam-link { background: none; border: none; color: var(--blue); cursor: pointer; font-size: 13px; padding: 0; text-decoration: none; }
.exam-link:hover { color: var(--blue-hover); text-decoration: underline; }

/* Picker */
.exam-picker { display: flex; flex-direction: column; gap: 14px; }
.exam-back { background: none; border: none; color: var(--text-3); font-size: 13px; cursor: pointer; padding: 0; align-self: flex-start; }
.exam-back:hover { color: var(--text-2); }
.exam-picker h3 { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; margin: 0; }
.exam-section-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-3); margin-bottom: 6px; }
.exam-topic-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px; }
.exam-topic-btn { display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 8px; cursor: pointer; color: var(--text); transition: all 0.15s; text-align: left; }
.exam-topic-btn:hover { border-color: var(--blue); background: var(--blue-dim); }
.exam-topic-active { border-color: var(--blue); background: var(--blue-dim); box-shadow: inset 0 0 0 1px var(--blue); }
.exam-topic-label { font-size: 13px; font-weight: 500; }
.exam-topic-count { font-size: 11px; color: var(--text-3); }

.exam-picker-controls { display: flex; flex-wrap: wrap; gap: 18px; padding: 14px; background: var(--surface-1); border-radius: 10px; }
.exam-control-group { display: flex; align-items: center; gap: 8px; }
.exam-control-group label { font-size: 12px; color: var(--text-3); font-weight: 500; }
.exam-pill { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--glass-border); background: transparent; color: var(--text-2); font-size: 12px; cursor: pointer; transition: all 0.15s; }
.exam-pill:hover { color: var(--text); border-color: var(--blue); }
.exam-pill-active { background: var(--blue); color: #fff; border-color: var(--blue); }
.exam-pill-small { display: inline-block; padding: 2px 8px; border-radius: 999px; background: var(--surface-2); color: var(--text-3); font-size: 10px; font-weight: 600; }
.exam-start-btn { align-self: flex-start; padding: 12px 28px; font-size: 14px; }
.exam-start-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Mock intro */
.exam-mock-intro { display: flex; flex-direction: column; gap: 14px; }
.exam-mock-intro h3 { font-size: 20px; font-weight: 700; margin: 0; }
.exam-mock-rules { display: flex; flex-direction: column; gap: 8px; padding: 18px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 10px; }
.exam-rule { font-size: 14px; color: var(--text-2); line-height: 1.5; }
.exam-rule strong { color: var(--text); }

/* Question view */
.exam-question-view { display: flex; flex-direction: column; gap: 16px; padding: 4px; }
.exam-q-header { display: flex; align-items: center; gap: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--glass-border); }
.exam-q-progress { flex: 1; }
.exam-q-progress-bar { width: 100%; height: 4px; background: var(--surface-2); border-radius: 2px; overflow: hidden; }
.exam-q-progress-fill { height: 100%; background: linear-gradient(90deg, var(--blue), #52c47a); transition: width 0.3s; }
.exam-q-progress-text { font-size: 11px; color: var(--text-3); margin-top: 4px; }
.exam-timer { padding: 6px 14px; background: var(--surface-2); border-radius: 999px; font-family: 'Source Serif 4', serif; font-size: 14px; font-weight: 600; color: var(--text); font-variant-numeric: tabular-nums; }
.exam-timer-warn { background: rgba(224,92,92,0.2); color: #e05c5c; animation: examPulse 1s infinite; }
@keyframes examPulse { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }
.exam-quit-btn { background: none; border: 1px solid var(--glass-border); color: var(--text-3); padding: 6px 12px; border-radius: 999px; font-size: 11px; cursor: pointer; transition: all 0.15s; }
.exam-quit-btn:hover { color: #e05c5c; border-color: #e05c5c; }

.exam-q-meta { display: flex; gap: 6px; flex-wrap: wrap; }
.exam-tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; background: var(--surface-2); color: var(--text-3); }
.exam-tag-section { background: var(--blue-dim); color: var(--blue); }
.exam-tag-easy { background: rgba(82,196,122,0.2); color: #52c47a; }
.exam-tag-medium { background: rgba(240,192,64,0.2); color: #f0c040; }
.exam-tag-hard { background: rgba(224,92,92,0.2); color: #e05c5c; }
.exam-tag-pass { background: rgba(82,196,122,0.2); color: #52c47a; padding: 2px 8px; border-radius: 999px; font-weight: 700; font-size: 10px; }
.exam-tag-fail { background: rgba(224,92,92,0.2); color: #e05c5c; padding: 2px 8px; border-radius: 999px; font-weight: 600; font-size: 10px; }

.exam-q-stem { font-size: 16px; line-height: 1.6; padding: 18px 20px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 12px; color: var(--text); }
.exam-q-options { display: flex; flex-direction: column; gap: 8px; }
.exam-q-option { display: flex; align-items: flex-start; gap: 12px; padding: 12px 16px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 10px; cursor: pointer; transition: all 0.15s; text-align: left; color: var(--text); width: 100%; }
.exam-q-option:hover { border-color: var(--blue); background: var(--blue-dim); }
.exam-q-option-selected { border-color: var(--blue); background: var(--blue-dim); box-shadow: inset 0 0 0 1px var(--blue); }
.exam-q-option-correct { border-color: #52c47a; background: rgba(82,196,122,0.15); }
.exam-q-option-wrong { border-color: #e05c5c; background: rgba(224,92,92,0.15); }
.exam-q-option-letter { font-weight: 700; color: var(--blue); flex-shrink: 0; min-width: 22px; }
.exam-q-option-text { font-size: 14px; line-height: 1.5; }

.exam-q-feedback { padding: 16px 18px; border-radius: 10px; display: flex; flex-direction: column; gap: 10px; }
.exam-fb-correct { background: rgba(82,196,122,0.1); border: 1px solid #52c47a; }
.exam-fb-wrong { background: rgba(224,92,92,0.1); border: 1px solid #e05c5c; }
.exam-fb-header { font-size: 14px; font-weight: 700; }
.exam-fb-correct .exam-fb-header { color: #52c47a; }
.exam-fb-wrong .exam-fb-header { color: #e05c5c; }
.exam-fb-correct-answer { font-size: 13px; color: var(--text-2); }
.exam-fb-explanation { font-size: 13px; line-height: 1.55; color: var(--text-2); }
.exam-fb-source { font-size: 11px; color: var(--text-3); font-style: italic; }
.exam-next-btn { align-self: flex-start; margin-top: 6px; }

.exam-q-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.exam-q-submit { padding: 10px 22px; }
.exam-flag-btn { padding: 6px 12px; background: transparent; border: 1px solid var(--glass-border); color: var(--text-3); border-radius: 999px; font-size: 12px; cursor: pointer; }
.exam-flag-btn:hover { border-color: #f0c040; color: #f0c040; }
.exam-flagged { border-color: #f0c040; color: #f0c040; background: rgba(240,192,64,0.1); }
.exam-q-finish { background: none; border: none; color: var(--blue); font-size: 12px; cursor: pointer; padding: 6px 10px; margin-left: auto; }
.exam-q-finish:hover { text-decoration: underline; }

/* Scorecard */
.exam-scorecard { display: flex; flex-direction: column; gap: 18px; }
.exam-sc-header { padding: 24px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 14px; text-align: center; }
.exam-sc-header h2 { font-size: 18px; font-weight: 700; margin: 0 0 14px; letter-spacing: -0.02em; }
.exam-sc-overall { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.exam-sc-pct { font-size: 48px; font-weight: 700; letter-spacing: -0.04em; background: linear-gradient(135deg, var(--blue), #52c47a); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.exam-sc-frac { font-size: 14px; color: var(--text-2); }
.exam-sc-time { font-size: 12px; color: var(--text-3); }
.exam-sc-verdict { margin-top: 14px; padding: 10px 18px; border-radius: 999px; font-size: 14px; font-weight: 700; display: inline-block; }
.exam-sc-verdict-pass { background: rgba(82,196,122,0.15); color: #52c47a; border: 1px solid #52c47a; }
.exam-sc-verdict-fail { background: rgba(224,92,92,0.15); color: #e05c5c; border: 1px solid #e05c5c; }

.exam-sc-sections { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.exam-sc-section { padding: 18px; border: 1px solid var(--glass-border); border-radius: 12px; text-align: center; background: var(--surface-1); }
.exam-sc-pass { border-color: #52c47a; background: rgba(82,196,122,0.05); }
.exam-sc-fail { border-color: #e05c5c; background: rgba(224,92,92,0.05); }
.exam-sc-section-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-3); margin-bottom: 8px; }
.exam-sc-section-pct { font-size: 28px; font-weight: 700; letter-spacing: -0.02em; }
.exam-sc-pass .exam-sc-section-pct { color: #52c47a; }
.exam-sc-fail .exam-sc-section-pct { color: #e05c5c; }
.exam-sc-section-detail { font-size: 12px; color: var(--text-3); margin-top: 4px; }

.exam-sc-breakdown { padding: 20px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 12px; }
.exam-sc-breakdown h3 { font-size: 14px; font-weight: 700; margin: 0 0 12px; }
.exam-sc-topic-row { display: grid; grid-template-columns: 1fr 2fr 100px; gap: 12px; align-items: center; padding: 6px 0; }
.exam-sc-topic-label { font-size: 12px; color: var(--text-2); }
.exam-sc-topic-bar { height: 6px; background: var(--surface-2); border-radius: 3px; overflow: hidden; }
.exam-sc-topic-fill { height: 100%; transition: width 0.3s; }
.exam-sc-topic-pct { font-size: 11px; color: var(--text-3); text-align: right; font-variant-numeric: tabular-nums; }
.exam-sc-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }

/* Review */
.exam-review { display: flex; flex-direction: column; gap: 16px; }
.exam-rv-header { display: flex; align-items: center; gap: 14px; }
.exam-rv-header h2 { font-size: 18px; margin: 0; }
.exam-rv-list { display: flex; flex-direction: column; gap: 12px; }
.exam-rv-item { padding: 16px 18px; background: var(--surface-1); border: 1px solid var(--glass-border); border-left-width: 3px; border-radius: 8px; }
.exam-rv-item-correct { border-left-color: #52c47a; }
.exam-rv-item-wrong { border-left-color: #e05c5c; }
.exam-rv-item-skipped { border-left-color: #f0c040; }
.exam-rv-num { font-size: 12px; font-weight: 700; color: var(--text-3); margin-bottom: 6px; }
.exam-rv-stem { font-size: 14px; line-height: 1.55; margin-bottom: 10px; color: var(--text); }
.exam-rv-opts { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.exam-rv-opt { padding: 6px 10px; border-radius: 6px; font-size: 13px; color: var(--text-2); background: var(--surface-2); }
.exam-rv-opt-correct { background: rgba(82,196,122,0.15); color: #52c47a; font-weight: 500; }
.exam-rv-opt-wrong { background: rgba(224,92,92,0.15); color: #e05c5c; }
.exam-rv-opt-letter { font-weight: 700; }
.exam-rv-explanation { font-size: 12px; color: var(--text-2); line-height: 1.55; padding-top: 8px; border-top: 1px solid var(--glass-border-subtle); }
.exam-rv-source { color: var(--text-3); font-style: italic; }

/* History */
.exam-history { display: flex; flex-direction: column; gap: 12px; }
.exam-history h3 { font-size: 16px; margin: 0; }
.exam-hist-list { display: flex; flex-direction: column; gap: 6px; }
.exam-hist-row { display: grid; grid-template-columns: 80px 1fr 80px 80px 1fr 70px; gap: 12px; align-items: center; padding: 10px 14px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 8px; cursor: pointer; transition: all 0.15s; }
.exam-hist-row:hover { border-color: var(--blue); }
.exam-hist-mode .exam-tag { background: var(--blue-dim); color: var(--blue); }
.exam-hist-date { font-size: 12px; color: var(--text-2); }
.exam-hist-score { font-size: 14px; font-weight: 700; }
.exam-hist-detail { font-size: 11px; color: var(--text-3); }
.exam-hist-sections { display: flex; gap: 4px; }
.exam-hist-pass { text-align: right; }
.exam-empty-mini { padding: 24px; text-align: center; color: var(--text-3); font-size: 13px; background: var(--surface-1); border-radius: 10px; }

/* Topic list page */
.exam-topics-page { display: flex; flex-direction: column; gap: 12px; }
.exam-tl-list { display: flex; flex-direction: column; gap: 6px; }
.exam-tl-row { display: grid; grid-template-columns: 100px 1fr 200px 130px; gap: 12px; align-items: center; padding: 10px 14px; background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: 8px; }
.exam-tl-section { font-size: 11px; text-transform: uppercase; color: var(--text-3); font-weight: 600; }
.exam-tl-label { font-size: 13px; color: var(--text); font-weight: 500; }
.exam-tl-weight { font-size: 11px; color: var(--text-3); }
.exam-tl-count { font-size: 12px; color: var(--text-2); }
.exam-tl-bar { grid-column: 1 / -1; height: 4px; background: var(--surface-2); border-radius: 2px; overflow: hidden; }
.exam-tl-fill { height: 100%; transition: width 0.3s; }

@media (max-width: 720px) {
  .exam-q-header { flex-wrap: wrap; }
  .exam-hist-row { grid-template-columns: 1fr 1fr; gap: 6px; }
  .exam-sc-topic-row { grid-template-columns: 1fr 90px; }
  .exam-sc-topic-bar { grid-column: 1 / -1; }
  .exam-tl-row { grid-template-columns: 1fr 1fr; }
}