/* ============================================================
   PSLE Practice — Apple-aesthetic design system
   ============================================================ */

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

:root {
  --bg:             #f5f5f7;
  --surface:        #ffffff;
  --text-primary:   #1d1d1f;
  --text-secondary: #6e6e73;
  --text-tertiary:  #aeaeb2;
  --border:         rgba(0,0,0,0.08);
  --shadow-sm:      0 2px 8px rgba(0,0,0,0.06);
  --shadow-md:      0 4px 24px rgba(0,0,0,0.10);
  --shadow-lg:      0 12px 40px rgba(0,0,0,0.15);
  --radius-sm:      10px;
  --radius-md:      16px;
  --radius-lg:      24px;
  --ease:           0.25s cubic-bezier(.4,0,.2,1);

  --english: #0071e3;
  --math:    #bf5af2;
  --science: #34c759;
  --chinese: #ff375f;
  --malay:   #ff9f0a;
  --green:   #34c759;
  --red:     #ff375f;
  --orange:  #ff9f0a;
  --blue:    #0071e3;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Shared header (index / subjects / results) ─── */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 32px;
  height: 52px;
}

.brand {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.4px;
  text-decoration: none;
}
.brand em { font-style: normal; color: var(--blue); }

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--blue);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  padding: 0;
  transition: opacity var(--ease);
}
.back-btn:hover { opacity: 0.65; }

.spacer { flex: 1; }


/* ════════════════════════════════════════════════════════════
   INDEX PAGE
   ════════════════════════════════════════════════════════════ */

.index-hero {
  text-align: center;
  padding: 72px 24px 52px;
}
.index-hero h1 {
  font-size: 52px;
  font-weight: 700;
  letter-spacing: -2px;
  line-height: 1.06;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.index-hero p {
  font-size: 19px;
  color: var(--text-secondary);
  letter-spacing: -0.2px;
}

.subjects-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px 80px;
}

.subject-card {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 40px 20px 36px;
  text-align: center;
  cursor: pointer;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--ease), box-shadow var(--ease);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  overflow: hidden;
}
.subject-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.subject-card.english::after { background: var(--english); }
.subject-card.math::after    { background: var(--math); }
.subject-card.science::after { background: var(--science); }
.subject-card.chinese::after { background: var(--chinese); }
.subject-card.malay::after   { background: var(--malay); }

.subject-card:not(.disabled):hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.subject-card.disabled { cursor: default; opacity: 0.55; }

.subject-icon {
  width: 68px;
  height: 68px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}
.subject-card.english .subject-icon { background: rgba(0,113,227,.12); }
.subject-card.math    .subject-icon { background: rgba(191,90,242,.12); }
.subject-card.science .subject-icon { background: rgba(52,199,89,.12); }
.subject-card.chinese .subject-icon { background: rgba(255,55,95,.12); }
.subject-card.malay   .subject-icon { background: rgba(255,159,10,.12); }

.subject-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--text-primary);
}
.subject-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.coming-soon {
  position: absolute;
  top: 13px; right: 13px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 3px 8px;
  border-radius: 20px;
  background: var(--bg);
  color: var(--text-tertiary);
}


/* ════════════════════════════════════════════════════════════
   SUBJECTS PAGE
   ════════════════════════════════════════════════════════════ */

.page-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 32px 80px;
}

.page-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-bottom: 10px;
}
.page-eyebrow .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}
.page-eyebrow.english { color: var(--english); }
.page-eyebrow.english .dot { background: var(--english); }
.page-eyebrow.math    { color: var(--math); }
.page-eyebrow.math    .dot { background: var(--math); }
.page-eyebrow.science { color: var(--science); }
.page-eyebrow.science .dot { background: var(--science); }

.page-title {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -1.5px;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.page-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.papers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

.paper-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--ease), box-shadow var(--ease);
  text-decoration: none;
  display: block;
  color: inherit;
}
.paper-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.paper-card-stripe { height: 5px; }
.paper-card-stripe.english { background: var(--english); }
.paper-card-stripe.math    { background: var(--math); }
.paper-card-stripe.science { background: var(--science); }

.paper-card-body { padding: 22px 22px 18px; }

.paper-year-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.paper-year-tag.english { background: rgba(0,113,227,.1);   color: var(--english); }
.paper-year-tag.math    { background: rgba(191,90,242,.1); color: var(--math); }
.paper-year-tag.science { background: rgba(52,199,89,.1);  color: var(--science); }

.paper-card-title {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 5px;
  color: var(--text-primary);
}
.paper-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 14px;
}

.paper-card-meta {
  display: flex;
  gap: 14px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 14px;
}
.paper-card-meta strong { color: var(--text-primary); font-weight: 600; }

.paper-progress-bar {
  height: 4px;
  background: var(--bg);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 6px;
}
.paper-progress-fill { height: 100%; border-radius: 2px; }
.paper-progress-fill.english { background: var(--english); }
.paper-progress-fill.math    { background: var(--math); }
.paper-progress-fill.science { background: var(--science); }

.paper-progress-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.paper-action-btn {
  display: block;
  width: 100%;
  padding: 11px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-align: center;
  transition: opacity var(--ease);
}
.paper-action-btn:hover { opacity: 0.82; }
.paper-action-btn.english { background: var(--english); color: #fff; }
.paper-action-btn.math    { background: var(--math);    color: #fff; }
.paper-action-btn.science { background: var(--science); color: #fff; }
.paper-action-btn.ghost   { background: var(--bg); color: var(--text-primary); border: 1px solid var(--border); }

.completed-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 8px;
}

.no-papers {
  grid-column: 1/-1;
  text-align: center;
  padding: 60px 20px;
  font-size: 16px;
  color: var(--text-secondary);
}


/* ════════════════════════════════════════════════════════════
   EXAM PAGE — Light split layout
   ════════════════════════════════════════════════════════════ */

body.exam-body {
  background: var(--bg);
  overflow: hidden;
  height: 100vh;
}

.exam-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 52px;
  z-index: 300;
  background: rgba(255,255,255,0.88);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 14px;
}
.exam-header .back-btn { color: var(--blue); }
.exam-header-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: -0.2px;
}
.exam-timer {
  margin-left: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.5px;
}

.exam-progress-track {
  position: fixed;
  top: 52px; left: 0; right: 0;
  height: 3px;
  background: rgba(0,0,0,0.06);
  z-index: 300;
}
.exam-progress-fill {
  height: 100%;
  background: var(--blue);
  transition: width 0.35s ease;
}

.exam-split {
  position: fixed;
  top: 55px;
  left: 0; right: 0;
  bottom: 60px;
  display: flex;
}

/* ── Left panel ── */
.exam-left {
  flex: 0 0 58%;
  background: #e8e8ed;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  border-right: 1px solid var(--border);
  gap: 12px;
}

.paper-img {
  width: 100%;
  max-width: 680px;
  border-radius: 10px;
  box-shadow: 0 2px 20px rgba(0,0,0,0.12);
  display: block;
}

.img-toggle-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
  max-width: 680px;
}
.img-toggle-btn {
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid rgba(0,0,0,0.12);
  background: rgba(255,255,255,0.7);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
}
.img-toggle-btn:hover { background: #fff; color: var(--text-primary); }
.img-toggle-btn.active { background: var(--blue); border-color: var(--blue); color: #fff; }

.question-text-card {
  width: 100%;
  max-width: 680px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 30px 26px;
  color: var(--text-primary);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: -0.2px;
  white-space: pre-wrap;
  box-shadow: var(--shadow-sm);
}
.question-text-card .eyebrow {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

/* ── Right panel ── */
.exam-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  overflow: hidden;
}

.exam-right-top {
  flex: 1;
  overflow-y: auto;
  padding: 22px 22px 0;
}

.q-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.q-number-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-tertiary);
}
.q-marks-chip {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--bg);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.q-section-chip {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--bg);
  color: var(--text-tertiary);
  border: 1px solid var(--border);
}

.q-text-right {
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.65;
  margin-bottom: 18px;
  letter-spacing: -0.1px;
  white-space: pre-wrap;
}

/* MCQ options */
.mcq-options { display: flex; flex-direction: column; gap: 9px; margin-bottom: 8px; }

.mcq-opt {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 13px 16px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.5;
  font-family: inherit;
  text-align: left;
  transition: background 0.18s ease, border-color 0.18s ease;
}
.mcq-opt:hover:not(:disabled) { background: var(--bg); border-color: rgba(0,0,0,0.15); }
.mcq-opt:disabled { cursor: default; }

.opt-key {
  min-width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  flex-shrink: 0;
  margin-top: 1px;
}

.mcq-opt.selected { border-color: var(--blue); background: rgba(0,113,227,0.06); }
.mcq-opt.selected .opt-key { background: var(--blue); color: #fff; border-color: var(--blue); }
.mcq-opt.correct  { border-color: var(--green); background: rgba(52,199,89,0.08); }
.mcq-opt.correct  .opt-key { background: var(--green); color: #fff; border-color: var(--green); }
.mcq-opt.wrong    { border-color: var(--red); background: rgba(255,55,95,0.07); }
.mcq-opt.wrong    .opt-key { background: var(--red); color: #fff; border-color: var(--red); }

/* Text inputs */
.text-input-wrap { margin-bottom: 12px; }

.text-input-wrap input,
.text-input-wrap textarea {
  width: 100%;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 13px 16px;
  font-size: 15px;
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
  resize: vertical;
  transition: border-color 0.2s ease;
  margin-bottom: 10px;
  display: block;
}
.text-input-wrap input:focus,
.text-input-wrap textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(0,113,227,0.1); }

.input-hint {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 10px;
  line-height: 1.5;
}

.submit-btn {
  width: 100%;
  padding: 13px;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: opacity 0.2s ease;
}
.submit-btn:hover { opacity: 0.84; }

/* Parts input */
.parts-input { display: flex; flex-direction: column; gap: 12px; margin-bottom: 12px; }
.part-row { background: var(--bg); border-radius: 10px; padding: 14px; border: 1px solid var(--border); }
.part-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.marks-chip-sm {
  background: rgba(0,0,0,0.06);
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
}
.part-q-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
  white-space: pre-wrap;
}
.part-row input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
}
.part-row input:focus { border-color: var(--blue); }

.answered-given {
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--bg);
  border-radius: 8px;
  padding: 9px 12px;
  border: 1px solid var(--border);
}

.change-ans-btn {
  display: block;
  margin-top: 10px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.change-ans-btn:hover { border-color: var(--blue); color: var(--blue); }

.right-divider { height: 1px; background: var(--border); margin: 0 22px; }

/* Feedback panel */
.exam-right-bottom {
  flex: 0 0 auto;
  max-height: 46%;
  overflow-y: auto;
  padding: 16px 22px 18px;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.feedback-card {
  border-radius: 14px;
  padding: 16px 18px;
  margin-bottom: 10px;
}
.feedback-card.correct { background: rgba(52,199,89,0.10); border: 1px solid rgba(52,199,89,0.3); }
.feedback-card.wrong   { background: rgba(255,55,95,0.08);  border: 1px solid rgba(255,55,95,0.25); }
.feedback-card.partial { background: rgba(255,159,10,0.10);  border: 1px solid rgba(255,159,10,0.30); }
.feedback-card.neutral { background: var(--surface); border: 1px solid var(--border); }
.feedback-card.info    { background: rgba(0,113,227,0.07);  border: 1px solid rgba(0,113,227,0.2); }

.feedback-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}
.feedback-card.correct .feedback-title { color: #1a7a3c; }
.feedback-card.wrong   .feedback-title { color: #c0392b; }
.feedback-card.partial .feedback-title { color: #b8730a; }
.feedback-card.neutral .feedback-title { color: var(--text-primary); }
.feedback-card.info    .feedback-title { color: var(--blue); }

/* AI grading UI */
.ai-loading-card {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 20px; border-radius: 14px;
  background: rgba(0,113,227,0.06); border: 1px solid rgba(0,113,227,0.18);
  margin-bottom: 10px;
}

/* ── Draw question prompt ─────────────────────────────── */
.draw-prompt-card {
  display: flex; flex-direction: column; align-items: center;
  gap: 6px; padding: 20px 16px; border-radius: 14px;
  background: rgba(255,159,10,0.07); border: 1px solid rgba(255,159,10,0.30);
  text-align: center; margin-bottom: 4px;
}
.draw-prompt-icon { font-size: 32px; line-height: 1; }
.draw-prompt-title {
  font-size: 15px; font-weight: 600; color: #b8730a;
}
.draw-prompt-hint {
  font-size: 13px; color: var(--text-secondary); max-width: 300px;
}
.draw-review-note {
  font-size: 13px; color: var(--text-secondary);
  padding: 8px 12px; background: rgba(255,159,10,0.07);
  border-radius: 8px; border: 1px solid rgba(255,159,10,0.20);
  margin-bottom: 8px;
}
.ai-spinner {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2.5px solid rgba(0,113,227,0.2);
  border-top-color: var(--blue);
  animation: ai-spin 0.7s linear infinite;
}
@keyframes ai-spin { to { transform: rotate(360deg); } }
.ai-loading-text { font-size: 14px; font-weight: 500; color: var(--blue); }

.ai-tag {
  display: inline-block; font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.8px;
  padding: 2px 7px; border-radius: 5px;
  background: var(--blue); color: #fff;
  vertical-align: middle; margin-left: 6px;
}
.ai-score-badge {
  display: inline-block; font-size: 12px; font-weight: 700;
  padding: 2px 8px; border-radius: 6px;
  background: rgba(0,0,0,0.06); color: var(--text-primary);
  margin-left: 8px;
}
.ai-feedback-body {
  font-size: 13px; color: var(--text-secondary); line-height: 1.6;
  margin-top: 8px; padding-top: 8px;
  border-top: 1px dashed var(--border);
}
.ai-matched-list, .ai-missed-list {
  font-size: 12.5px; color: var(--text-secondary); margin-top: 6px;
}
.ai-matched-list strong { color: #1a7a3c; }
.ai-missed-list  strong { color: #c0392b; }
.ai-criteria-list {
  margin-top: 10px; padding: 10px 12px;
  background: rgba(0,0,0,0.03); border-radius: 8px;
}
.ai-criterion {
  font-size: 12.5px; color: var(--text-secondary);
  padding: 3px 0;
}

/* AI feedback in results review section */
.review-ai-feedback {
  margin-top: 10px; padding: 10px 12px;
  background: rgba(0,113,227,0.05); border: 1px solid rgba(0,113,227,0.18);
  border-radius: 8px;
}
.review-ai-title {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.6px; color: var(--blue);
  margin-bottom: 6px;
}
.review-ai-text {
  font-size: 13px; color: var(--text-secondary); line-height: 1.6;
  margin-bottom: 6px;
}
.override-row { margin-top: 10px; }
.override-btn {
  background: none; border: 1px solid var(--border); border-radius: 7px;
  padding: 5px 11px; font-size: 12px; font-family: inherit;
  color: var(--text-secondary); cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.override-btn:hover { border-color: var(--blue); color: var(--blue); }

.feedback-body {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
  white-space: pre-wrap;
}

.part-fb-row {
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.part-fb-row:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.working-step {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 4px 0 4px 12px;
  border-left: 2px solid var(--border);
  margin-bottom: 5px;
  line-height: 1.5;
}
.working-img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 10px 0;
  box-shadow: 0 1px 8px rgba(0,0,0,0.10);
}

.self-mark-row { display: flex; gap: 9px; margin-top: 12px; }
.sm-btn {
  flex: 1;
  padding: 11px;
  border-radius: 10px;
  border: none;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: opacity 0.2s ease;
}
.sm-btn:hover { opacity: 0.75; }
.sm-btn.right { background: rgba(52,199,89,0.15); color: #1a7a3c; }
.sm-btn.wrong { background: rgba(255,55,95,0.12); color: #c0392b; }

/* Bottom nav */
.exam-bottom {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 10px;
  z-index: 300;
}

.q-pills {
  display: flex;
  gap: 5px;
  overflow-x: auto;
  scrollbar-width: none;
  flex: 1;
}
.q-pills::-webkit-scrollbar { display: none; }

.q-pill {
  min-width: 30px;
  height: 30px;
  padding: 0 5px;
  border-radius: 7px;
  border: none;
  font-size: 11px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
  background: rgba(0,0,0,0.06);
  color: var(--text-tertiary);
  white-space: nowrap;
}
.q-pill.current  { background: var(--blue); color: #fff; }
.q-pill.answered { background: rgba(0,0,0,0.1); color: var(--text-secondary); }
.q-pill.correct  { background: rgba(52,199,89,0.18); color: #1a7a3c; }
.q-pill.wrong    { background: rgba(255,55,95,0.15); color: #c0392b; }

.nav-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 16px;
  border-radius: 9px;
  border: none;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.2s ease;
}
.nav-btn:disabled { opacity: 0.28; cursor: default; }
.nav-btn:not(:disabled):hover { opacity: 0.8; }
.nav-btn.prev { background: rgba(0,0,0,0.07); color: var(--text-secondary); }
.nav-btn.next { background: var(--blue); color: #fff; }
.nav-btn.end  { background: rgba(255,55,95,0.12); color: #c0392b; }


/* ════════════════════════════════════════════════════════════
   RESULTS PAGE
   ════════════════════════════════════════════════════════════ */

.results-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 32px 80px;
}

.result-score-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  margin-bottom: 20px;
}
.result-paper-name {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.score-circle {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  border: 6px solid;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 20px auto 12px;
}
.score-circle.score-high { border-color: var(--green);  color: var(--green); }
.score-circle.score-mid  { border-color: var(--orange); color: var(--orange); }
.score-circle.score-low  { border-color: var(--red);    color: var(--red); }

.score-pct {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1;
}
.score-sub { font-size: 12px; font-weight: 500; margin-top: 4px; opacity: 0.8; }

.stats-row {
  display: grid;
  grid-template-columns: repeat(6,1fr);
  gap: 10px;
  margin-bottom: 20px;
}
.stat-box {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 18px 10px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.stat-val {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 4px;
  color: var(--text-primary);
}
.stat-lbl {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
}
.correct-val { color: var(--green); }
.wrong-val   { color: var(--red); }

.result-section {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 22px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  margin-bottom: 18px;
}
.result-section h3 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.4px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.sec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.sec-row:last-child { border-bottom: none; }
.sec-name { color: var(--text-primary); font-weight: 500; }
.sec-score { color: var(--text-secondary); }

.review-item {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-bottom: 10px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.review-q-num {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  margin-bottom: 7px;
  display: flex;
  align-items: center;
  gap: 7px;
}
.marks-badge {
  background: var(--bg);
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 10px;
}
.review-text    { font-size: 14px; color: var(--text-primary); margin-bottom: 9px; line-height: 1.5; }
.review-given   { font-size: 13px; color: var(--red);   margin-bottom: 3px; }
.review-correct { font-size: 13px; color: var(--green); }

.skip-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 12px;
  background: var(--bg);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.results-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 28px; }
.results-actions button {
  flex: 1;
  min-width: 130px;
  padding: 13px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: opacity 0.2s ease;
}
.results-actions button:hover { opacity: 0.84; }
.btn-retake       { background: var(--orange); color: #fff; }
.btn-retake-wrong { background: var(--red,#dc2626); color: #fff; }
.btn-review { background: var(--bg); color: var(--text-primary); border: 1px solid var(--border) !important; }
.btn-home   { background: var(--blue);   color: #fff; }

/* Retake-wrong locked correct display */
.answered-locked-correct {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 16px; border-radius: 10px;
  background: color-mix(in srgb, var(--green,#16a34a) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--green,#16a34a) 30%, transparent);
  font-size: 14px; font-weight: 500; color: var(--green,#16a34a);
}

/* Admin tab bar */
.admin-tab-bar {
  display: flex; gap: 4px;
  background: var(--bg-secondary,#f5f5f5); border-radius: 10px; padding: 4px;
  border: 1px solid var(--border);
}
.admin-tab {
  padding: 7px 16px; border-radius: 7px; border: none; background: none;
  font-size: 13px; font-weight: 600; font-family: inherit; cursor: pointer;
  color: var(--text-secondary); transition: background 0.15s, color 0.15s;
}
.admin-tab.active { background: var(--bg); color: var(--text-primary); box-shadow: 0 1px 3px rgba(0,0,0,.1); }


/* ════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════ */
@media (max-width: 1000px) {
  .subjects-grid { grid-template-columns: repeat(3,1fr); }
  .exam-left { flex: 0 0 50%; }
}
@media (max-width: 700px) {
  .subjects-grid { grid-template-columns: repeat(2,1fr); padding: 0 16px 60px; }
  .index-hero h1 { font-size: 38px; }
  .subjects-grid .subject-card:last-child { grid-column: 1 / -1; }
  .stats-row { grid-template-columns: repeat(3,1fr); }
  .app-header { padding: 0 16px; }
  .page-wrap { padding: 36px 20px 60px; }
}
@media (max-width: 540px) {
  .exam-split { flex-direction: column; }
  .exam-left { flex: 0 0 42%; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.07); }
}


/* ════════════════════════════════════════════════════════════
   LOGIN PAGE
   ════════════════════════════════════════════════════════════ */

.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }

.login-page {
  width: 100%;
  max-width: 420px;
  padding: 40px 24px 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.login-brand { text-align: center; }
.brand-mark {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.8px;
  color: var(--text-primary);
  text-decoration: none;
}
.brand-mark em { font-style: normal; color: var(--blue); }
.brand-sub { font-size: 14px; color: var(--text-secondary); margin-top: 4px; }

.login-card {
  width: 100%;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.login-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}
.login-tab {
  flex: 1;
  padding: 14px;
  background: none;
  border: none;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--ease);
}
.login-tab.active {
  color: var(--blue);
  background: rgba(0,113,227,.06);
  border-bottom: 2px solid var(--blue);
  margin-bottom: -1px;
}
.login-tab:hover:not(.active) { background: var(--bg); }

.login-form { padding: 28px 28px 24px; display: flex; flex-direction: column; gap: 16px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-secondary); }
.form-input {
  width: 100%;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  font-size: 15px;
  font-family: inherit;
  background: var(--bg);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--ease);
}
.form-input:focus { border-color: var(--blue); background: #fff; }
select.form-input { cursor: pointer; }

.input-wrap { position: relative; }
.input-wrap .form-input { padding-right: 60px; }
.eye-btn {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 12px;
  font-weight: 600;
  color: var(--blue);
  cursor: pointer;
  font-family: inherit;
  padding: 4px 6px;
}

.form-error {
  font-size: 13px;
  color: var(--red);
  min-height: 18px;
  font-weight: 500;
}

.form-submit {
  width: 100%;
  min-height: 48px;
  padding: 13px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--blue);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: opacity var(--ease), background-color var(--ease), border-color var(--ease);
  margin-top: 4px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.form-submit:hover:not(:disabled) { opacity: 0.85; }
.form-submit:disabled { opacity: 0.55; cursor: default; }

.btn-label { line-height: 1.2; }

.btn-spinner,
.google-logo {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
}

.btn-spinner {
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  opacity: 0;
  pointer-events: none;
  animation: ai-spin 0.7s linear infinite;
}

.form-submit[data-loading='true'] .btn-spinner { opacity: 1; }

.login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 4px 0 2px;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.form-submit-google {
  background: #fff;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}

.form-submit-google:hover:not(:disabled) {
  opacity: 1;
  background: #f8f9fb;
}

.form-submit-google .btn-spinner {
  border-color: rgba(28,28,30,0.15);
  border-top-color: var(--text-primary);
}

.google-logo svg {
  display: block;
  width: 100%;
  height: 100%;
}

.form-submit-google[data-loading='true'] .google-logo { opacity: 0; }

.login-hint {
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
  background: rgba(0,113,227,.07);
  border: 1px solid rgba(0,113,227,.18);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  line-height: 1.6;
  width: 100%;
}
.login-hint code {
  background: rgba(0,0,0,.07);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}


/* ════════════════════════════════════════════════════════════
   PROGRESS PAGE
   ════════════════════════════════════════════════════════════ */

.prog-empty {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-secondary);
}

.prog-summary-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}
.prog-summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 22px 16px;
  text-align: center;
}
.prog-summary-icon { font-size: 26px; margin-bottom: 8px; }
.prog-summary-val  { font-size: 26px; font-weight: 700; letter-spacing: -0.8px; color: var(--text-primary); margin-bottom: 3px; }
.prog-summary-lbl  { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-tertiary); }

.prog-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 20px;
}
.prog-section-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.4px;
  margin-bottom: 18px;
  color: var(--text-primary);
}

/* Subject bar chart */
.prog-subject-bars { display: flex; flex-direction: column; gap: 14px; }
.prog-bar-row { display: flex; align-items: center; gap: 12px; }
.prog-bar-label {
  width: 160px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 7px;
  flex-shrink: 0;
}
.prog-bar-track {
  flex: 1;
  height: 10px;
  background: var(--bg);
  border-radius: 5px;
  overflow: hidden;
}
.prog-bar-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.6s cubic-bezier(.4,0,.2,1);
}
.prog-bar-pct { width: 40px; text-align: right; font-size: 14px; font-weight: 700; flex-shrink: 0; }

/* Subject colour dots */
.subj-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.subj-dot.english { background: var(--english); }
.subj-dot.math    { background: var(--math); }
.subj-dot.science { background: var(--science); }

/* Weak areas */
.prog-weak-list { display: flex; flex-direction: column; gap: 10px; }
.prog-weak-item { display: flex; align-items: center; gap: 10px; }
.prog-weak-label { flex: 1; font-size: 14px; color: var(--text-primary); }
.prog-weak-pct   { font-size: 14px; font-weight: 700; flex-shrink: 0; width: 36px; text-align: right; }

/* Score history table */
.prog-table-wrap { overflow-x: auto; }
.prog-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.prog-table th {
  text-align: left;
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border);
}
.prog-table td {
  padding: 12px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.prog-table tbody tr:last-child td { border-bottom: none; }
.prog-table tbody tr:hover { background: var(--bg); }

.prog-score-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
}
.prog-score-badge.score-high { background: rgba(52,199,89,.12);  color: var(--green); }
.prog-score-badge.score-mid  { background: rgba(255,159,10,.12); color: var(--orange); }
.prog-score-badge.score-low  { background: rgba(255,55,95,.12);  color: var(--red); }


/* ════════════════════════════════════════════════════════════
   ADMIN PAGE
   ════════════════════════════════════════════════════════════ */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 200;
  backdrop-filter: blur(2px);
}
.admin-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 201;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 32px;
  width: 100%;
  max-width: 420px;
}

.role-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.role-badge.admin   { background: rgba(0,113,227,.12); color: var(--blue); }
.role-badge.student { background: var(--bg); color: var(--text-secondary); }

.admin-action-btn {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 7px;
  border: none;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  margin-right: 4px;
  transition: opacity var(--ease);
}
.admin-action-btn:hover { opacity: 0.75; }
.admin-action-btn.view   { background: rgba(0,113,227,.1);  color: var(--blue); }
.admin-action-btn.reset  { background: rgba(255,159,10,.1); color: var(--orange); }
.admin-action-btn.delete { background: rgba(255,55,95,.1);  color: var(--red); }


/* ════════════════════════════════════════════════════════════
   RESULTS — REVIEW SECTION (new exam-mode design)
   ════════════════════════════════════════════════════════════ */

.review-item {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 20px 20px 16px;
  margin-bottom: 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.review-item-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.review-q-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}
.review-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 9px;
  border-radius: 20px;
}
.review-tag.wrong   { background: rgba(255,55,95,.1);  color: var(--red); }
.review-tag.pending { background: rgba(255,159,10,.1); color: var(--orange); }

.review-q-text {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-primary);
  margin-bottom: 14px;
  white-space: pre-wrap;
}

/* MCQ options in review */
.review-mcq-opts { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.review-mcq-opt {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 14px;
  border: 1.5px solid var(--border);
  background: var(--bg);
  line-height: 1.5;
}
.review-mcq-opt .opt-key {
  min-width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  border: 1.5px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
}
.review-mcq-opt.correct { border-color: var(--green); background: rgba(52,199,89,0.07); }
.review-mcq-opt.correct .opt-key { background: var(--green); color: #fff; border-color: var(--green); }
.review-mcq-opt.wrong   { border-color: var(--red);   background: rgba(255,55,95,0.07); }
.review-mcq-opt.wrong   .opt-key { background: var(--red); color: #fff; border-color: var(--red); }
.opt-tag {
  margin-left: auto;
  font-size: 11px;
  font-weight: 700;
  padding: 1px 8px;
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}
.correct-tag { background: rgba(52,199,89,.15);  color: var(--green); }
.wrong-tag   { background: rgba(255,55,95,.12);  color: var(--red); }

/* Answer row for non-MCQ */
.review-answer-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 10px;
  font-size: 14px;
}
.review-given-val  { color: var(--text-secondary); }
.review-given-val.wrong { color: var(--red); }
.review-correct-val { color: var(--green); font-weight: 500; }

.review-given-label { font-size: 12px; font-weight: 700; text-transform: uppercase;
                      letter-spacing: 0.5px; color: var(--text-tertiary); margin-bottom: 4px; }
.review-given-text {
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg);
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 12px;
  white-space: pre-wrap;
  line-height: 1.6;
}

/* Model answer */
.review-model-answer {
  background: rgba(52,199,89,0.06);
  border: 1px solid rgba(52,199,89,0.2);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 12px;
}
.review-model-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--green);
  margin-bottom: 6px;
}
.review-model-text {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.65;
  white-space: pre-wrap;
}

/* Parts review */
.review-parts { display: flex; flex-direction: column; gap: 10px; margin-bottom: 10px; }
.review-part-row {
  background: var(--bg);
  border-radius: 10px;
  padding: 12px 14px;
}
.review-part-label { font-size: 12px; font-weight: 700; color: var(--text-secondary); margin-bottom: 4px; }
.review-part-q     { font-size: 13px; color: var(--text-primary); margin-bottom: 6px; }

/* Working / explanation */
.review-working {
  background: rgba(0,113,227,0.05);
  border-left: 3px solid var(--blue);
  border-radius: 0 8px 8px 0;
  padding: 10px 14px;
  margin-bottom: 10px;
}
.review-working-title {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.5px; color: var(--blue); margin-bottom: 6px;
}
.review-step { font-size: 13px; color: var(--text-primary); padding: 3px 0; line-height: 1.5; }
.review-explanation {
  background: var(--bg);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 6px;
}
.review-explanation-title {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.5px; color: var(--text-tertiary); margin-bottom: 5px;
}


/* Self-mark buttons on results page */
.self-mark-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.sm-btn {
  padding: 8px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: background 0.15s, transform 0.1s;
}
.sm-btn:active { transform: scale(0.97); }
.sm-btn.right {
  background: rgba(52,199,89,0.12);
  color: var(--green);
  border-color: rgba(52,199,89,0.3);
}
.sm-btn.right:hover { background: rgba(52,199,89,0.22); }
.sm-btn.wrong {
  background: rgba(255,55,95,0.10);
  color: var(--red);
  border-color: rgba(255,55,95,0.25);
}
.sm-btn.wrong:hover { background: rgba(255,55,95,0.2); }




@media (max-width: 700px) {
  .prog-summary-row { grid-template-columns: repeat(2, 1fr); }
  .prog-bar-label   { width: 120px; font-size: 13px; }
  .login-page       { padding: 24px 16px 40px; }
}