/* ============================================================
   PracticeKing — Style System
   Light mode (default) + Dark mode via [data-theme="dark"]
   Mobile-first, Testbook/Oliveboard-inspired result screen
   ============================================================ */

/* ---- Google Font: Outfit for headings, Roboto for body ---- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Roboto:wght@400;500;700&family=IBM+Plex+Mono:wght@400;600;700&display=swap');

/* ============================================================
   1. CSS CUSTOM PROPERTIES (TOKENS)
   ============================================================ */

:root {
  /* Light theme */
  --bg:           #F4F6FA;
  --surface:      #FFFFFF;
  --surface-alt:  #F0F2F8;
  --border:       #E0E4EE;
  --ink:          #1A2035;
  --ink-soft:     #5A6480;
  --ink-muted:    #9199B0;

  --brand:        #5B4CF5;
  --brand-soft:   #EDE9FF;
  --brand-dark:   #4336D8;

  --green:        #16A34A;
  --green-soft:   #DCFCE7;
  --green-mid:    #22C55E;

  --red:          #DC2626;
  --red-soft:     #FEE2E2;
  --red-mid:      #EF4444;

  --amber:        #D97706;
  --amber-soft:   #FEF3C7;
  --amber-mid:    #F59E0B;

  --blue:         #2563EB;
  --blue-soft:    #DBEAFE;

  --shadow-sm:    0 1px 3px rgba(26,32,53,0.08);
  --shadow-md:    0 4px 16px rgba(26,32,53,0.10);
  --shadow-lg:    0 8px 32px rgba(26,32,53,0.12);

  --radius-sm:    6px;
  --radius-md:    12px;
  --radius-lg:    18px;
  --radius-xl:    24px;

  --font-scale:   1;
  --transition:   0.2s ease;
}

[data-theme="dark"] {
  --bg:           #212429;
  --surface:      #2D323A;
  --surface-alt:  #3A404A;
  --border:       #4B5363;
  --ink:          #E8E8E8;
  --ink-soft:     #A0AAB2;
  --ink-muted:    #76808A;

  --brand:        #4A90E2;
  --brand-soft:   #1A365D;
  --brand-dark:   #63A4FF;

  --green:        #10B981;
  --green-soft:   #064E3B;
  --green-mid:    #059669;

  --red:          #EF4444;
  --red-soft:     #450A0A;
  --red-mid:      #DC2626;

  --amber:        #F59E0B;
  --amber-soft:   #451A03;
  --amber-mid:    #D97706;

  --blue:         #4A90E2;
  --blue-soft:    #1A365D;

  --shadow-sm:    0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:    0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg:    0 8px 32px rgba(0,0,0,0.5);
}

/* ============================================================
   2. RESET & BASE
   ============================================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img { max-width: 100%; }

/* ============================================================
   3. MASTHEAD / HEADER
   ============================================================ */

.masthead {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), border-color var(--transition);
}

.brand-link {
  display: flex;
  flex-direction: column;
  gap: 1px;
  text-decoration: none;
  color: inherit;
}

.masthead .brand {
  font-family: 'Outfit', sans-serif;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.3px;
  line-height: 1;
  color: var(--ink);
}

.masthead .brand span {
  color: var(--brand);
}

.brand-slogan {
  font-size: 10px;
  color: var(--ink-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: 'IBM Plex Mono', monospace;
}

.masthead-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.masthead .tagline {
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: 'IBM Plex Mono', monospace;
}

/* ---- Theme Toggle Button ---- */

.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--surface-alt);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), transform 0.15s ease;
  flex-shrink: 0;
}
.theme-toggle:hover {
  background: var(--brand-soft);
  border-color: var(--brand);
  transform: rotate(15deg) scale(1.05);
}
.theme-toggle:active { transform: scale(0.95); }

/* ============================================================
   4. LAYOUT WRAPPERS
   ============================================================ */

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 80px;
}

/* ============================================================
   5. HOME PAGE — TEST CARDS
   ============================================================ */

.section-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 14px;
}

.test-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.test-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--brand);
  transform: translateY(-1px);
}

.test-card .info .date {
  font-family: 'Outfit', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.test-card .info .meta {
  font-size: 12.5px;
  color: var(--ink-soft);
  margin-top: 4px;
  line-height: 1.4;
}

.test-card .info .meta .best {
  color: var(--green);
  font-weight: 600;
}

.card-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ============================================================
   6. BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1.5px solid var(--brand);
  background: var(--brand);
  color: #fff;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition), transform 0.1s ease;
  font-family: 'Roboto', sans-serif;
}
.btn:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.btn:active { transform: scale(0.97); }

.btn-outline {
  background: transparent;
  color: var(--brand);
}
.btn-outline:hover { background: var(--brand-soft); }

.btn-ghost {
  background: var(--surface-alt);
  border-color: var(--border);
  color: var(--ink-soft);
}
.btn-ghost:hover { border-color: var(--ink-soft); color: var(--ink); }

.btn-danger {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}
.btn-danger:hover { opacity: 0.88; }

.btn-notes {
  background: transparent;
  border-color: var(--blue);
  color: var(--blue);
}
.btn-notes:hover { background: var(--blue-soft); }

.empty-state {
  border: 1.5px dashed var(--border);
  padding: 32px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 14px;
  border-radius: var(--radius-md);
}

/* ============================================================
   6b. INSTRUCTIONS / TEST DETAILS SCREEN
   ============================================================ */

.instr-wrap {
  max-width: 680px;
}

/* --- Test header card --- */
.instr-header {
  background: linear-gradient(135deg, var(--brand) 0%, #8B5CF6 100%);
  border-radius: var(--radius-xl);
  padding: 28px 24px 24px;
  margin-bottom: 16px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(91,76,245,0.3);
  animation: fadeUp 0.35s ease both;
}
.instr-header::after {
  content: '';
  position: absolute;
  bottom: -50px; right: -30px;
  width: 180px; height: 180px;
  background: rgba(255,255,255,0.07);
  border-radius: 50%;
}

.instr-source-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.75;
  margin-bottom: 8px;
}

.instr-title {
  font-family: 'Outfit', sans-serif;
  font-size: 26px;
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 12px;
  position: relative;
  z-index: 1;
}

.instr-best-badge {
  display: inline-block;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 12px;
  backdrop-filter: blur(4px);
  position: relative;
  z-index: 1;
}

/* --- Stats grid (4 cards) --- */
.instr-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 14px;
  animation: fadeUp 0.35s 0.06s ease both;
}

.instr-stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 8px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.instr-stat-val {
  font-family: 'Outfit', sans-serif;
  font-size: 26px;
  font-weight: 800;
  color: var(--brand);
  line-height: 1;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.instr-stat-unit {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
}

.instr-stat-lbl {
  font-size: 10px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'IBM Plex Mono', monospace;
  margin-top: 5px;
}

/* --- Section wrapper --- */
.instr-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 18px 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
  animation: fadeUp 0.35s 0.1s ease both;
}

.instr-section-title {
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

/* --- Marking scheme grid --- */
.instr-marking-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.instr-mark-item {
  border-radius: var(--radius-sm);
  padding: 12px 10px;
  text-align: center;
  border: 1px solid transparent;
}

.instr-mark-correct {
  background: var(--green-soft);
  border-color: var(--green);
}
.instr-mark-wrong {
  background: var(--red-soft);
  border-color: var(--red);
}
.instr-mark-skip {
  background: var(--surface-alt);
  border-color: var(--border);
}

.instr-mark-val {
  font-family: 'Outfit', sans-serif;
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 4px;
}
.instr-mark-correct .instr-mark-val { color: var(--green); }
.instr-mark-wrong   .instr-mark-val { color: var(--red); }
.instr-mark-skip    .instr-mark-val { color: var(--ink-muted); }

.instr-mark-lbl {
  font-size: 10.5px;
  color: var(--ink-soft);
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.02em;
}

/* --- Instructions list --- */
.instr-list {
  padding-left: 18px;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.instr-list li {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.55;
}

.instr-list li strong {
  color: var(--ink);
  font-weight: 600;
}

/* --- Legend grid --- */
.instr-legend-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.instr-legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--ink-soft);
}

.instr-legend-dot {
  width: 24px;
  height: 24px;
  border-radius: 5px;
  flex-shrink: 0;
  border: 1.5px solid transparent;
}
.dot-answered     { background: var(--green); border-color: var(--green); }
.dot-review       { background: var(--amber); border-color: var(--amber); }
.dot-not-answered { background: var(--red-soft); border-color: var(--red); }
.dot-not-visited  { background: var(--surface-alt); border-color: var(--border); }

/* --- CTA buttons --- */
.instr-cta {
  display: flex;
  gap: 12px;
  margin-top: 6px;
  margin-bottom: 8px;
  animation: fadeUp 0.35s 0.16s ease both;
}

.instr-begin-btn {
  flex: 1;
  background: var(--brand);
  color: #fff;
  border: none;
  padding: 15px 24px;
  border-radius: var(--radius-sm);
  font-family: 'Outfit', sans-serif;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background var(--transition), transform 0.12s ease, box-shadow var(--transition);
  box-shadow: 0 4px 16px rgba(91,76,245,0.35);
}
.instr-begin-btn:hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(91,76,245,0.45);
}
.instr-begin-btn:active { transform: scale(0.98); }

/* --- Responsive: instructions on mobile --- */
@media (max-width: 640px) {
  .instr-header { padding: 22px 16px 18px; border-radius: var(--radius-lg); }
  .instr-title { font-size: 20px; }

  .instr-stats { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .instr-stat-val { font-size: 22px; }

  .instr-marking-grid { grid-template-columns: repeat(3, 1fr); gap: 7px; }
  .instr-mark-val { font-size: 18px; }

  .instr-legend-grid { grid-template-columns: 1fr; gap: 8px; }

  .instr-cta { flex-direction: column; }
  .instr-begin-btn { font-size: 15px; padding: 14px; }
}

@media (max-width: 400px) {
  .instr-stat-val { font-size: 19px; }
  .instr-marking-grid { gap: 5px; }
}


/* ============================================================
   7. EXAM PAGE — BAR, LAYOUT, QUESTION PANEL
   ============================================================ */

.exam-bar {
  background: var(--ink);
  color: #fff;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  position: sticky;
  top: 0;
  z-index: 90;
}

[data-theme="dark"] .exam-bar {
  background: #0D0F19;
  border-bottom: 1px solid var(--border);
}

.exam-bar .label { opacity: 0.55; font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; }

.timer {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.timer.low { color: #FCA5A5; }

.exam-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 16px;
  max-width: 1100px;
  margin: 16px auto;
  padding: 0 16px 100px;
}

@media (max-width: 760px) {
  .exam-layout { grid-template-columns: 1fr; }
}

.q-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 18px 80px 18px;
  box-shadow: var(--shadow-sm);
}

.q-number-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  gap: 10px;
  flex-wrap: wrap;
}

.qn-badge {
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  font-family: 'Roboto', sans-serif;
  font-size: 15px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.q-toolbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.font-controls {
  display: flex;
  align-items: center;
  gap: 3px;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3px;
  background: var(--surface-alt);
}

.font-controls button {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--ink);
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.font-controls button:hover { background: var(--surface); }

.q-text {
  font-size: calc(16px * var(--font-scale));
  line-height: 1.6;
  margin-bottom: 20px;
  font-weight: 400;
  color: var(--ink);
}

.options { display: flex; flex-direction: column; gap: 10px; }

.option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  background: transparent;
  position: relative;
}
.option:hover { border-color: var(--ink-soft); }

.option.selected {
  border-color: var(--brand);
}

/* Custom Radio Button for Testbook style */
.option::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--ink-soft);
  margin-top: 2px;
  flex-shrink: 0;
  transition: border-color 0.2s, background 0.2s;
}

.option.selected::before {
  border-color: var(--brand);
  background: var(--brand);
  box-shadow: inset 0 0 0 3px var(--bg);
}

.option .opt-num {
  display: none; /* Hide the old italicized numbers */
}

.option .otext { 
  font-size: calc(15px * var(--font-scale)); 
  line-height: 1.5; 
  color: var(--ink); 
  flex: 1;
}

/* Review-mode coloring */
.option.correct-answer {
  border-color: var(--green);
  background: var(--green-soft);
}
.option.correct-answer::before {
  border-color: var(--green);
  background: var(--green);
  box-shadow: inset 0 0 0 3px var(--green-soft);
}

.option.wrong-answer {
  border-color: var(--red);
  background: var(--red-soft);
}
.option.wrong-answer::before {
  border-color: var(--red);
  background: var(--red);
  box-shadow: inset 0 0 0 3px var(--red-soft);
}

.explanation {
  margin-top: 14px;
  padding: 12px 14px;
  background: var(--amber-soft);
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.55;
}

/* Question footer buttons */
.q-footer {
  display: flex;
  gap: 8px;
  flex-wrap: nowrap;
  overflow-x: auto;
  
  /* Fixed at the bottom */
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 12px 16px;
  z-index: 10;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

[data-theme="dark"] .q-footer {
  box-shadow: 0 -2px 10px rgba(0,0,0,0.3);
}

.q-footer button {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
  padding: 12px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.q-footer button:disabled { opacity: 0.4; cursor: not-allowed; }
.q-footer button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.q-footer button.primary:hover { opacity: 0.9; }
.q-footer button.review { 
  border-color: var(--brand); 
  color: var(--brand); 
}
.q-footer button.review:hover { background: rgba(59, 130, 246, 0.1); }
.q-footer button.clear { color: var(--ink); border-color: var(--ink-soft); }
.q-footer button.clear:hover { background: var(--surface-alt); }
.q-footer button.outline { border-color: var(--border); }
.q-footer button.outline:hover { background: var(--surface-alt); }

/* ============================================================
   8. QUESTION PALETTE PANEL
   ============================================================ */

.palette-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  align-self: start;
  box-shadow: var(--shadow-sm);
}

.palette-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 12px;
}

.palette-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2px;
}

.palette-close {
  display: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--ink);
  font-size: 14px;
  align-items: center;
  justify-content: center;
}

.palette-fab {
  display: none;
  position: fixed;
  bottom: 85px;
  right: 18px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  border: none;
  font-size: 20px;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(91,76,245,0.45);
  z-index: 45;
  transition: transform var(--transition);
}
.palette-fab:hover { transform: scale(1.08); }

.palette-fab .fab-badge {
  position: absolute;
  top: -3px;
  right: -3px;
  background: var(--red);
  color: #fff;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9px;
  font-weight: 700;
  border-radius: 10px;
  padding: 2px 5px;
  min-width: 17px;
  text-align: center;
}

.palette-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 12, 24, 0.55);
  z-index: 40;
  backdrop-filter: blur(2px);
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(34px, 1fr));
  gap: 7px;
  margin-bottom: 14px;
}

.palette-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--surface-alt);
  cursor: pointer;
  transition: transform 0.1s ease, background 0.15s ease;
}
.palette-cell:hover { transform: scale(1.08); }

.palette-cell.current { border-color: var(--brand); border-width: 2px; color: var(--brand); }
.palette-cell.answered { background: var(--green); color: #fff; border-color: var(--green); }
.palette-cell.review { background: var(--amber); color: #fff; border-color: var(--amber); }
.palette-cell.not-answered { background: var(--red-soft); border-color: var(--red); color: var(--red); }

/* Overview grid (result page) */
.overview-grid .palette-cell { text-decoration: none; }
.overview-grid .palette-cell.status-correct { background: var(--green); color: #fff; border-color: var(--green); }
.overview-grid .palette-cell.status-wrong { background: var(--red); color: #fff; border-color: var(--red); }
.overview-grid .palette-cell.status-skipped { background: var(--amber); color: #fff; border-color: var(--amber); }

.legend { display: flex; flex-direction: column; gap: 6px; font-size: 11px; color: var(--ink-soft); margin-bottom: 16px; }
.legend .row { display: flex; align-items: center; gap: 7px; }
.legend .swatch { width: 12px; height: 12px; border-radius: 3px; border: 1px solid var(--border); flex-shrink: 0; }
.legend-count {
  margin-left: auto;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--ink);
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1px 7px;
  min-width: 22px;
  text-align: center;
}

.submit-btn {
  width: 100%;
  background: var(--red);
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.03em;
  transition: opacity var(--transition);
}
.submit-btn:hover { opacity: 0.88; }

.exit-btn {
  width: 100%;
  background: transparent;
  color: var(--ink-muted);
  border: 1.5px solid var(--border);
  padding: 10px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 12px;
  margin-top: 8px;
  transition: border-color var(--transition), color var(--transition);
}
.exit-btn:hover { border-color: var(--red); color: var(--red); }

/* ============================================================
   9. STATUS PILLS
   ============================================================ */

.status-pill {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
}
.status-pill.status-correct { background: var(--green-soft); color: var(--green); }
.status-pill.status-wrong { background: var(--red-soft); color: var(--red); }
.status-pill.status-skipped { background: var(--amber-soft); color: var(--amber); }

/* ============================================================
   10. RESULT SCREEN — TESTBOOK/OLIVEBOARD STYLE
   ============================================================ */

/* --- Hero Score Banner --- */
.result-hero {
  background: linear-gradient(135deg, var(--brand) 0%, #8B5CF6 60%, #A78BFA 100%);
  border-radius: var(--radius-xl);
  padding: 28px 20px 24px;
  margin-bottom: 16px;
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(91,76,245,0.35);
}

.result-hero::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
}

.result-hero::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -20px;
  width: 200px;
  height: 200px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}

.result-hero-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.8;
  font-family: 'IBM Plex Mono', monospace;
  margin-bottom: 8px;
}

.result-hero-title {
  font-family: 'Outfit', sans-serif;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
  opacity: 0.95;
}

.result-hero-test {
  font-size: 12px;
  opacity: 0.7;
  margin-bottom: 24px;
}

/* Score ring + score number */
.score-ring-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.score-ring {
  position: relative;
  width: 120px;
  height: 120px;
}

.score-ring svg {
  transform: rotate(-90deg);
  width: 120px;
  height: 120px;
}

.score-ring .ring-bg {
  fill: none;
  stroke: rgba(255,255,255,0.2);
  stroke-width: 8;
}

.score-ring .ring-fill {
  fill: none;
  stroke: #fff;
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 314;
  stroke-dashoffset: 314;
  transition: stroke-dashoffset 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.score-ring-inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.score-ring-num {
  font-family: 'Outfit', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.score-ring-total {
  font-size: 11px;
  color: rgba(255,255,255,0.7);
  font-family: 'IBM Plex Mono', monospace;
  margin-top: 2px;
}

/* Mini stat pills in hero */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  position: relative;
  z-index: 1;
}

.hero-stat-item {
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  padding: 10px 8px;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,0.2);
}

.hero-stat-num {
  font-family: 'Outfit', sans-serif;
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 2px;
}

.hero-stat-lbl {
  font-size: 10px;
  opacity: 0.75;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: 'IBM Plex Mono', monospace;
}

.hero-stat-item.hs-correct .hero-stat-num { color: #86EFAC; }
.hero-stat-item.hs-wrong .hero-stat-num { color: #FCA5A5; }
.hero-stat-item.hs-skipped .hero-stat-num { color: #FDE68A; }

/* --- Result Sub Cards (accuracy, time, marks) --- */
.result-meta-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.result-meta-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 10px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.result-meta-card .rmc-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 800;
  background: var(--brand-soft);
  color: var(--brand);
}
.result-meta-card .rmc-accuracy { background: var(--green-soft); color: var(--green); }
.result-meta-card .rmc-attempted { background: var(--amber-soft); color: var(--amber); }
.result-meta-card .rmc-best { background: var(--brand-soft); color: var(--brand); }

.result-meta-card .rmc-val {
  font-family: 'Outfit', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1;
}

.result-meta-card .rmc-lbl {
  font-size: 10px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'IBM Plex Mono', monospace;
  margin-top: 3px;
}

/* --- Question-wise Status Section --- */
.result-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}

.result-section-title {
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.result-section-title .section-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--brand-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}

/* --- Action Buttons Row --- */
.result-actions {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.result-actions .btn {
  flex: 1;
  min-width: 130px;
  padding: 12px 16px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

/* --- Notes Banner (prominent, shown at end) --- */
.notes-banner {
  background: linear-gradient(135deg, #0F4C8A 0%, #1A6FC4 100%);
  border-radius: var(--radius-lg);
  padding: 20px 18px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(15,76,138,0.35);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.notes-banner::before {
  content: '';
  position: absolute;
  top: -30px;
  right: -20px;
  width: 120px;
  height: 120px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
}
.notes-banner:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(15,76,138,0.45);
}

.notes-banner-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(255,255,255,0.2);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Outfit', sans-serif;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.3);
}

.notes-banner-content {
  flex: 1;
  position: relative;
  z-index: 1;
}

.notes-banner-title {
  font-family: 'Outfit', sans-serif;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 3px;
}

.notes-banner-sub {
  font-size: 12px;
  opacity: 0.8;
  line-height: 1.4;
}

.notes-banner-arrow {
  font-size: 22px;
  opacity: 0.85;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

/* --- Answer Review Items --- */
.answer-review-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.review-list { display: flex; flex-direction: column; gap: 12px; }

.review-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition);
}

.review-item.ri-correct { border-left: 3px solid var(--green); }
.review-item.ri-wrong { border-left: 3px solid var(--red); }
.review-item.ri-skipped { border-left: 3px solid var(--amber); }

.review-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-alt);
  gap: 10px;
}

.review-item-qnum {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: 0.07em;
}

.review-item-body { padding: 14px; }

.review-item .q-text {
  font-size: calc(14.5px * var(--font-scale));
  line-height: 1.55;
  margin-bottom: 14px;
  color: var(--ink);
}

/* ============================================================
   11. RESPONSIVE — MOBILE (< 640px)
   ============================================================ */

@media (max-width: 640px) {
  .wrap { padding: 16px 12px 72px; }
  .masthead { padding: 10px 14px; }
  .masthead .brand { font-size: 19px; }

  /* Home cards */
  .test-card { flex-direction: column; align-items: stretch; padding: 14px; }
  .test-card .card-actions { width: 100%; }
  .test-card .card-actions .btn { flex: 1; }

  /* Exam */
  .exam-bar { padding: 8px 14px; font-size: 11px; }
  .timer { font-size: 15px; }
  .exam-layout { padding: 0 10px 88px; margin-top: 10px; gap: 10px; }
  .q-panel { padding: 14px 12px 80px 12px; }
  .q-text { font-size: calc(15px * var(--font-scale)); margin-bottom: 16px; }
  .option { padding: 10px 11px; gap: 10px; }
  .option .bubble { width: 26px; height: 26px; min-width: 26px; font-size: 11px; }
  .option .otext { font-size: calc(13.5px * var(--font-scale)); }
  .q-footer {
    padding: 10px 4px;
    gap: 4px;
    justify-content: space-between;
  }
  .q-footer button {
    padding: 10px 2px;
    font-size: 11px;
    min-height: 44px;
    flex: 1;
    white-space: normal;
    line-height: 1.15;
    text-align: center;
    letter-spacing: -0.2px;
  }

  /* Palette FAB + bottom sheet */
  .palette-fab { display: flex; }
  .palette-close { display: flex; }

  .palette-panel {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    max-height: 80vh;
    overflow-y: auto;
    border-radius: 20px 20px 0 0;
    box-shadow: 0 -8px 32px rgba(0,0,0,0.25);
    transform: translateY(110%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 50;
    margin: 0;
  }

  body.palette-open .palette-panel { transform: translateY(0); }
  body.palette-open .palette-backdrop { display: block; }

  .palette-grid { grid-template-columns: repeat(auto-fill, minmax(32px, 1fr)); }

  /* Result hero */
  .result-hero { padding: 22px 16px 18px; border-radius: var(--radius-lg); }
  .score-ring { width: 100px; height: 100px; }
  .score-ring svg { width: 100px; height: 100px; }
  .score-ring-num { font-size: 22px; }
  .hero-stat-num { font-size: 18px; }

  .result-meta-cards { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .result-meta-card { padding: 10px 6px; }
  .result-meta-card .rmc-val { font-size: 15px; }

  .result-actions { flex-wrap: wrap; }
  .result-actions .btn { flex: 1; min-width: 120px; }

  .notes-banner { padding: 16px 14px; }
  .notes-banner-icon { width: 38px; height: 38px; font-size: 16px; }
  .notes-banner-title { font-size: 14px; }

  .review-item-header { padding: 10px 12px 8px; }
  .review-item-body { padding: 12px; }
}

/* ============================================================
   12. RESPONSIVE — SMALL PHONES (< 400px)
   ============================================================ */

@media (max-width: 400px) {
  .masthead .brand { font-size: 17px; }
  .brand-slogan { display: none; }
  .q-text { font-size: calc(14px * var(--font-scale)); }
  .exam-bar { font-size: 10.5px; }

  .hero-stats { gap: 6px; }
  .hero-stat-num { font-size: 16px; }
  .result-meta-card .rmc-val { font-size: 13px; }
}

/* ============================================================
   13. MISC UTILITIES & ANIMATIONS
   ============================================================ */

.mono { font-family: 'IBM Plex Mono', 'Courier New', monospace; }
.serif { font-family: 'Outfit', sans-serif; font-weight: 700; }

/* Fade-in animation for result page */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.result-hero,
.result-meta-cards,
.result-section,
.result-actions,
.notes-banner,
.review-list {
  animation: fadeUp 0.4s ease both;
}

.result-meta-cards { animation-delay: 0.08s; }
.result-section    { animation-delay: 0.14s; }
.result-actions    { animation-delay: 0.18s; }
.notes-banner      { animation-delay: 0.22s; }
.review-list       { animation-delay: 0.26s; }

/* Scrollbar (WebKit) */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-muted); }

/* ============================================================
   MODAL SYSTEM — Notes Gate & End-of-Test Modal
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 12, 28, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 16px;
  opacity: 0;
  transition: opacity 0.22s ease;
}

.modal-overlay.modal-visible {
  opacity: 1;
}

.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(16px) scale(0.97);
  transition: transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.modal-visible .modal-box {
  transform: translateY(0) scale(1);
}

.modal-box--narrow {
  max-width: 360px;
  text-align: center;
}

/* Modal header */
.modal-header {
  padding: 22px 22px 0;
}

.modal-header--center {
  text-align: center;
  padding: 0 22px;
}

.modal-title {
  font-family: 'Outfit', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 4px;
}

.modal-sub {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.5;
}

/* End-of-test icon */
.modal-eot-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green);
  font-size: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 22px auto 14px;
  border: 2px solid var(--green);
}

/* Modal body (form fields) */
.modal-body {
  padding: 18px 22px 4px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.modal-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.modal-label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

.modal-required {
  color: var(--red);
  margin-left: 2px;
}

.modal-optional {
  color: var(--ink-muted);
  font-weight: 400;
  font-size: 11px;
  margin-left: 4px;
}

.modal-input {
  width: 100%;
  background: var(--surface-alt);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 13px;
  font-size: 14px;
  color: var(--ink);
  font-family: 'Roboto', sans-serif;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  -webkit-appearance: none;
  appearance: none;
}

.modal-input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(91,76,245,0.15);
}

.modal-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239199B0' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
  cursor: pointer;
}

.modal-error {
  background: var(--red-soft);
  border: 1px solid var(--red);
  border-radius: var(--radius-sm);
  color: var(--red);
  font-size: 12.5px;
  padding: 8px 12px;
  font-weight: 500;
}

/* Modal footer */
.modal-footer {
  padding: 16px 22px 22px;
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.modal-footer--col {
  flex-direction: column;
  padding: 18px 22px 22px;
}

.modal-footer--col .instr-begin-btn {
  width: 100%;
  font-size: 15px;
  padding: 13px;
}

.modal-footer--col .btn-ghost {
  width: 100%;
  text-align: center;
}

/* Notes banner: make it clickable (now a div, not an a tag) */
.notes-banner {
  cursor: pointer;
  user-select: none;
}
.notes-banner:focus {
  outline: 2px solid rgba(255,255,255,0.6);
  outline-offset: 2px;
}

/* Mobile adjustments for modals */
@media (max-width: 480px) {
  .modal-overlay { padding: 16px 12px; align-items: flex-end; }
  .modal-box { border-radius: var(--radius-lg) var(--radius-lg) 0 0; max-width: 100%; }
  .modal-box--narrow { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .modal-header { padding: 18px 18px 0; }
  .modal-body { padding: 14px 18px 4px; }
}

/* Custom Submit Modal (Testbook Style) */
.submit-modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.submit-modal-box {
  background: var(--surface-alt);
  border-radius: 8px;
  width: 90%; max-width: 320px;
  padding: 20px 24px;
  color: var(--ink);
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  font-family: 'Roboto', sans-serif;
}
.sm-row {
  display: flex; justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.sm-row:first-child { padding-top: 0; }
.sm-label { color: var(--ink-soft); }
.sm-val { font-weight: 700; }
.sm-blue { color: var(--brand); }
.sm-title {
  text-align: center; font-weight: 700;
  margin: 20px 0 16px; font-size: 15px;
}
.sm-actions {
  display: flex; gap: 12px;
}
.sm-btn {
  flex: 1; padding: 10px; border-radius: 6px;
  border: none; font-weight: 700; font-size: 14px; cursor: pointer;
}
.sm-yes { background: var(--brand); color: #fff; }
.sm-no { background: var(--ink-muted); color: #fff; opacity: 0.8; }
.sm-yes:hover { opacity: 0.9; }
.sm-no:hover { opacity: 1; }