/* ==========================================================================
   MATH FLUENCY — CSS DESIGN SYSTEM
   Palet Warna: Open Color (Blue, Green, Orange, Gray, Red)
   Layout: Desktop 1:1 Aspect Ratio (2 Kolom: Quiz Container & Dashboard Container)
   Modern Web Guidance: Hidden Scrollbars, Silky Smooth Transitions & View Transitions
   ========================================================================== */

:root {
  /* Open Color Blue */
  --oc-blue-0: #e7f5ff;
  --oc-blue-1: #d0ebff;
  --oc-blue-2: #a5d8ff;
  --oc-blue-3: #74c0fc;
  --oc-blue-4: #4dabf7;
  --oc-blue-5: #339af0;
  --oc-blue-6: #228be6;
  --oc-blue-7: #1c7ed6;
  --oc-blue-8: #1971c2;
  --oc-blue-9: #1864ab;

  /* Open Color Green */
  --oc-green-0: #ebfbee;
  --oc-green-1: #d3f9d8;
  --oc-green-2: #b2f2bb;
  --oc-green-3: #8ce99a;
  --oc-green-4: #69db7c;
  --oc-green-5: #51cf66;
  --oc-green-6: #40c057;
  --oc-green-7: #37b24d;
  --oc-green-8: #2f9e44;
  --oc-green-9: #2b8a3e;

  /* Open Color Orange */
  --oc-orange-0: #fff4e6;
  --oc-orange-1: #ffe8cc;
  --oc-orange-2: #ffd8a8;
  --oc-orange-3: #ffc078;
  --oc-orange-4: #ffa94d;
  --oc-orange-5: #ff922b;
  --oc-orange-6: #fd7e14;
  --oc-orange-7: #f76707;
  --oc-orange-8: #e8590c;
  --oc-orange-9: #d9480f;

  /* Open Color Gray */
  --oc-gray-0: #f8f9fa;
  --oc-gray-1: #f1f3f5;
  --oc-gray-2: #e9ecef;
  --oc-gray-3: #dee2e6;
  --oc-gray-4: #ced4da;
  --oc-gray-5: #adb5bd;
  --oc-gray-6: #868e96;
  --oc-gray-7: #495057;
  --oc-gray-8: #343a40;
  --oc-gray-9: #212529;

  /* Open Color Red */
  --oc-red-0: #fff5f5;
  --oc-red-1: #ffe3e3;
  --oc-red-2: #ffc9c9;
  --oc-red-6: #fa5252;
  --oc-red-7: #f03e3e;
  --oc-red-8: #e03131;

  /* Theme Tokens — Light Mode (Default) */
  --bg-gradient: linear-gradient(135deg, var(--oc-blue-9) 0%, var(--oc-blue-7) 50%, var(--oc-blue-8) 100%);
  --canvas-bg: rgba(255, 255, 255, 0.95);
  --canvas-border: rgba(255, 255, 255, 0.65);
  --panel-bg: #ffffff;
  --panel-border: var(--oc-gray-2);
  --card-bg: var(--oc-gray-0);
  --card-border: var(--oc-gray-3);

  --text-main: var(--oc-gray-9);
  --text-muted: var(--oc-gray-6);
  --text-dim: var(--oc-gray-5);

  --primary: var(--oc-blue-7);
  --primary-hover: var(--oc-blue-8);
  --primary-light: var(--oc-blue-0);
  --primary-border: var(--oc-blue-3);

  --success: var(--oc-green-7);
  --success-bg: var(--oc-green-1);
  --success-border: var(--oc-green-4);

  --warning: var(--oc-orange-6);
  --warning-bg: var(--oc-orange-1);
  --warning-border: var(--oc-orange-4);

  --danger: var(--oc-red-7);
  --danger-bg: var(--oc-red-1);
  --danger-border: var(--oc-red-6);

  --key-bg: #f8fbfe;
  --key-border: #d0e1f3;
  --key-shadow: #b3cde7;
  --key-text: var(--oc-gray-9);

  --shadow-sm: 0 2px 6px rgba(15, 30, 50, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 30, 50, 0.09);
  --shadow-lg: 0 20px 48px rgba(15, 30, 50, 0.15);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Modern fluid easing */
  --ease-soft: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Theme Tokens — Dark Mode */
[data-theme="dark"] {
  --bg-gradient: linear-gradient(135deg, #09131e 0%, #0d2238 50%, #081726 100%);
  --canvas-bg: rgba(16, 28, 44, 0.95);
  --canvas-border: rgba(255, 255, 255, 0.1);
  --panel-bg: #142236;
  --panel-border: #1f3452;
  --card-bg: #111d2e;
  --card-border: #1e3350;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --primary: var(--oc-blue-5);
  --primary-hover: var(--oc-blue-4);
  --primary-light: rgba(51, 154, 240, 0.15);
  --primary-border: var(--oc-blue-7);

  --success: var(--oc-green-4);
  --success-bg: rgba(81, 207, 102, 0.15);
  --success-border: var(--oc-green-8);

  --warning: var(--oc-orange-5);
  --warning-bg: rgba(255, 169, 77, 0.15);
  --warning-border: var(--oc-orange-8);

  --danger: var(--oc-red-6);
  --danger-bg: rgba(250, 82, 82, 0.18);
  --danger-border: var(--oc-red-8);

  --key-bg: #1b2d46;
  --key-border: #294263;
  --key-shadow: #0f1c2d;
  --key-text: #f8fafc;

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.65);
}

/* ==========================================================================
   MODERN WEB GUIDANCE: SCROLL SYSTEM (SILKY SMOOTH, HIDDEN SCROLLBARS)
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  
  /* Sembunyikan tanda scroll di seluruh browser secara bersih */
  scrollbar-width: none !important;
  -ms-overflow-style: none !important;
}

*::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
  background: transparent !important;
}

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text-main);
  background: var(--bg-gradient);
  user-select: none;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}

/* Modern View Transitions */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.22s;
  animation-timing-function: var(--ease-soft);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
  touch-action: manipulation;
  transition: transform 0.15s var(--ease-soft), filter 0.15s var(--ease-soft), background 0.15s var(--ease-soft);
}

button:focus-visible {
  outline: 2.5px solid var(--primary);
  outline-offset: 2px;
}

/* ==========================================================================
   DESKTOP WRAPPER & 1:1 SQUARE CANVAS
   ========================================================================== */
.desktop-wrapper {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(0px, 2vh, 18px);
  position: relative;
  overflow: hidden;
}

/* Container bujur sangkar desktop: lebar = tinggi (aspect-ratio: 1/1) */
.desktop-canvas {
  width: min(96vh, 96vw);
  height: min(96vh, 96vw);
  max-width: 960px;
  max-height: 960px;
  aspect-ratio: 1 / 1;
  background: var(--canvas-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--canvas-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  overflow: hidden;
  position: relative;
  transition: background 0.3s var(--ease-soft), border-color 0.3s var(--ease-soft);
}

/* ==========================================================================
   DIV 1: BAGIAN QUIZ (.quiz-container)
   ========================================================================== */
.quiz-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  border-right: 1px solid var(--panel-border);
  position: relative;
  overflow: hidden;
  background: var(--panel-bg);
  container-type: inline-size;
  container-name: quiz;
  transition: background 0.3s var(--ease-soft);
}

.mobile-top-bar {
  display: none; /* Desktop hidden */
}

/* Screen Switcher System dengan animasi lembut */
.screen {
  display: none;
  flex: 1;
  flex-direction: column;
  min-height: 0;
  padding: clamp(14px, 2.4vh, 22px);
  overflow-y: auto;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  position: relative;
}

.screen.active {
  display: flex;
  animation: softScreenFade 0.25s var(--ease-soft);
}

@keyframes softScreenFade {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.995);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ==========================================================================
   SCREEN 1: START SCREEN STYLES
   ========================================================================== */
.brand-hero {
  text-align: center;
  margin-bottom: clamp(10px, 1.8vh, 16px);
  flex-shrink: 0;
}

.brand-logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2px;
  animation: pulseLogo 3s infinite ease-in-out;
}

@keyframes pulseLogo {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.brand-logo-main {
  width: clamp(52px, 7.5vh, 64px);
  height: clamp(52px, 7.5vh, 64px);
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 4px 10px rgba(25, 113, 194, 0.2));
  transition: transform 0.2s var(--ease-soft);
}

.brand-logo-mini {
  width: 22px;
  height: 22px;
  object-fit: contain;
  display: inline-block;
  vertical-align: middle;
}

.brand-logo-small {
  width: 20px;
  height: 20px;
  object-fit: contain;
  display: inline-block;
  vertical-align: middle;
}

[data-theme="dark"] .brand-logo-main,
[data-theme="dark"] .brand-logo-mini,
[data-theme="dark"] .brand-logo-small {
  filter: invert(1) drop-shadow(0 2px 8px rgba(255, 255, 255, 0.25));
}

.app-title {
  font-size: clamp(22px, 3.4vh, 28px);
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: -0.5px;
  margin-top: 2px;
}

.app-tagline {
  font-size: clamp(12px, 1.8vh, 14px);
  color: var(--text-muted);
  margin-top: 2px;
}

.free-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success-border);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 700;
  margin-top: 6px;
}

.free-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--oc-green-6);
  animation: blinkDot 1.8s infinite;
}

@keyframes blinkDot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.setting-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: clamp(12px, 2vh, 18px);
  margin-bottom: clamp(10px, 1.6vh, 14px);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: clamp(8px, 1.4vh, 12px);
  transition: transform 0.2s var(--ease-soft), box-shadow 0.2s var(--ease-soft);
}

.card-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.card-heading {
  font-size: clamp(13px, 1.9vh, 15px);
  font-weight: 800;
  color: var(--text-main);
}

.heading-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.text-action-btn {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  padding: 3px 6px;
  border-radius: 6px;
}

.text-action-btn:hover {
  text-decoration: underline;
}

.mode-chip-group {
  display: flex;
  gap: 4px;
  background: var(--panel-bg);
  padding: 3px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
}

.mode-chip {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  color: var(--text-muted);
  transition: all 0.15s var(--ease-soft);
}

.mode-chip.selected {
  background: var(--primary);
  color: #ffffff;
}

/* Grids for choices */
.choice-grid {
  display: grid;
  gap: 8px;
}

.op-grid {
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.choice-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: clamp(9px, 1.5vh, 12px) 12px;
  background: var(--panel-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: clamp(13px, 1.9vh, 14.5px);
  font-weight: 700;
  transition: all 0.15s var(--ease-soft);
}

.choice-pill.op-pill {
  padding: clamp(10px, 1.8vh, 14px) 6px;
}

.choice-pill:hover {
  border-color: var(--primary-border);
  transform: translateY(-1px);
}

.choice-pill:active {
  transform: scale(0.97);
}

.choice-pill.selected {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary);
}

.op-glyph {
  font-size: clamp(18px, 2.8vh, 24px);
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.numbers-grid {
  grid-template-columns: repeat(4, 1fr);
  gap: 7px;
}

.number-btn {
  background: var(--panel-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: clamp(7px, 1.4vh, 10px) 4px;
  font-size: clamp(15px, 2.3vh, 17px);
  font-weight: 800;
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
  transition: all 0.14s var(--ease-soft);
  text-align: center;
}

.number-btn:hover {
  border-color: var(--primary-border);
  transform: translateY(-1px);
}

.number-btn:active {
  transform: scale(0.95);
}

.number-btn.selected {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
  font-weight: 900;
}

.number-btn.challenge-num.hidden {
  display: none;
}

/* Durasi Section */
.duration-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.duration-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sub-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
}

.duration-auto-badge {
  font-size: 11px;
  color: var(--text-dim);
}

.duration-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.duration-pill {
  padding: 8px 4px;
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-sm);
  background: var(--panel-bg);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-muted);
  text-align: center;
  opacity: 0.55;
  pointer-events: none;
  transition: all 0.15s var(--ease-soft);
}

.duration-pill.selected {
  opacity: 1;
  border-color: var(--oc-orange-5);
  background: var(--warning-bg);
  color: var(--oc-orange-7);
  box-shadow: 0 0 0 1px var(--oc-orange-5);
}

.duration-info-text {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.4;
  text-align: center;
  background: var(--panel-bg);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--card-border);
}

/* Action Buttons */
.primary-action-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--oc-green-7) 0%, var(--oc-green-8) 100%);
  color: #ffffff;
  border-radius: var(--radius-md);
  padding: clamp(12px, 2vh, 16px);
  font-size: clamp(15px, 2.3vh, 18px);
  font-weight: 800;
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 5px 0 var(--oc-green-9), 0 8px 18px rgba(43, 138, 62, 0.28);
  transition: transform 0.1s var(--ease-soft), box-shadow 0.1s var(--ease-soft), filter 0.15s var(--ease-soft);
}

.primary-action-btn:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
  box-shadow: 0 6px 0 var(--oc-green-9), 0 10px 22px rgba(43, 138, 62, 0.32);
}

.primary-action-btn:active {
  transform: translateY(3px);
  box-shadow: 0 2px 0 var(--oc-green-9);
}

.btn-arrow {
  font-size: 18px;
  transition: transform 0.15s var(--ease-soft);
}

.primary-action-btn:hover .btn-arrow {
  transform: translateX(3px);
}

.secondary-outline-btn {
  width: 100%;
  border: 2px solid var(--primary-border);
  color: var(--primary);
  border-radius: var(--radius-md);
  padding: 10px;
  font-size: 13.5px;
  font-weight: 700;
  text-align: center;
  transition: all 0.14s var(--ease-soft);
}

.secondary-outline-btn:hover {
  background: var(--primary-light);
}

.mobile-only-btn {
  display: none; /* Hide on desktop by default */
}

.danger-outline-btn {
  width: 100%;
  border: 2px solid var(--danger-border);
  color: var(--danger);
  border-radius: var(--radius-md);
  padding: 11px;
  font-size: 13.5px;
  font-weight: 700;
  text-align: center;
  transition: all 0.14s var(--ease-soft);
}

.danger-outline-btn:hover {
  background: var(--danger-bg);
}

.best-record-banner {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  min-height: 18px;
  margin-top: auto;
  padding-top: 6px;
}

/* ==========================================================================
   SCREEN 2: GAME SCREEN STYLES
   ========================================================================== */
#screen-game {
  padding: clamp(10px, 1.8vh, 16px);
  overflow: hidden;
  justify-content: space-between;
}

.game-hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: clamp(6px, 1.2vh, 10px);
  flex-shrink: 0;
}

.timer-pill {
  background: var(--primary-light);
  color: var(--primary);
  border: 2px solid var(--primary-border);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: clamp(14px, 2.2vh, 18px);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s var(--ease-soft);
}

.timer-pill.warn {
  background: var(--warning-bg);
  border-color: var(--warning-border);
  color: var(--oc-orange-8);
  animation: timerWarningPulse 0.8s infinite ease-in-out;
}

@keyframes timerWarningPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(253, 126, 20, 0.4); }
  50% { transform: scale(1.05); box-shadow: 0 0 0 8px rgba(253, 126, 20, 0); }
}

.hud-meta {
  display: flex;
  gap: 8px;
}

.progress-pill, .streak-pill {
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
}

.streak-pill {
  color: var(--oc-orange-7);
  background: var(--warning-bg);
  border-color: var(--warning-border);
}

/* Question Card */
.question-card {
  background: linear-gradient(145deg, var(--oc-blue-0), var(--oc-blue-1));
  border: 2px solid var(--oc-blue-3);
  border-radius: var(--radius-xl);
  padding: clamp(12px, 3vh, 24px) 16px;
  text-align: center;
  box-shadow: var(--shadow-md);
  position: relative;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: background 0.18s var(--ease-soft), border-color 0.18s var(--ease-soft), transform 0.12s var(--ease-soft);
}

[data-theme="dark"] .question-card {
  background: linear-gradient(145deg, #182e4b, #102138);
  border-color: var(--oc-blue-6);
}

.question-card.flash-correct {
  background: linear-gradient(145deg, var(--oc-green-1), var(--oc-green-2));
  border-color: var(--oc-green-5);
  transform: scale(1.02);
}

[data-theme="dark"] .question-card.flash-correct {
  background: linear-gradient(145deg, #164023, #0f2c18);
  border-color: var(--oc-green-5);
}

.question-card.flash-wrong {
  background: linear-gradient(145deg, var(--oc-red-1), var(--oc-red-2));
  border-color: var(--oc-red-6);
  animation: shakeCard 0.25s ease-in-out;
}

[data-theme="dark"] .question-card.flash-wrong {
  background: linear-gradient(145deg, #441717, #2f0f0f);
  border-color: var(--oc-red-6);
}

@keyframes shakeCard {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.expr-display {
  font-size: clamp(34px, 7.5vh, 52px);
  font-weight: 900;
  color: var(--oc-blue-9);
  line-height: 1.1;
  letter-spacing: 2px;
  font-variant-numeric: tabular-nums;
}

[data-theme="dark"] .expr-display {
  color: #ffffff;
}

.op-symbol {
  margin: 0 clamp(8px, 2vw, 14px);
  color: var(--oc-orange-6);
}

.answer-box {
  margin: clamp(8px, 1.8vh, 16px) auto 0;
  width: clamp(140px, 45%, 220px);
  min-height: clamp(38px, 6vh, 54px);
  background: var(--panel-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(22px, 4.5vh, 32px);
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-variant-numeric: tabular-nums;
}

.placeholder-dot {
  color: var(--text-dim);
  opacity: 0.5;
}

/* Keypad Layout */
.keypad-container {
  margin-top: clamp(8px, 1.4vh, 12px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(4, 1fr);
  gap: clamp(6px, 1.2vh, 10px);
  flex: 1;
  min-height: 0;
}

.key {
  background: var(--key-bg);
  border: 2px solid var(--key-border);
  border-radius: var(--radius-md);
  color: var(--key-text);
  font-size: clamp(18px, 3.8vh, 26px);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 0 var(--key-shadow);
  transition: transform 0.08s var(--ease-soft), box-shadow 0.08s var(--ease-soft), filter 0.12s var(--ease-soft);
  user-select: none;
}

.key:hover {
  filter: brightness(1.03);
}

.key:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 var(--key-shadow);
}

.key.key-back {
  background: var(--warning-bg);
  border-color: var(--warning-border);
  color: var(--oc-orange-8);
  box-shadow: 0 4px 0 var(--oc-orange-4);
  font-size: clamp(16px, 3.2vh, 22px);
}

.key.key-back:active {
  box-shadow: 0 1px 0 var(--oc-orange-4);
}

.key.key-stop {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger);
  box-shadow: 0 4px 0 var(--oc-red-2);
  font-size: clamp(13px, 2.2vh, 16px);
  font-weight: 800;
}

.key.key-stop:active {
  box-shadow: 0 1px 0 var(--oc-red-2);
}

/* ==========================================================================
   SCREEN 3 & 4: RESULT & HISTORY SCREENS
   ========================================================================== */
.scrollable-screen-content {
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: clamp(10px, 1.8vh, 14px);
  padding-right: 2px;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.result-hero {
  text-align: center;
  flex-shrink: 0;
}

.result-badge-icon {
  font-size: clamp(32px, 5vh, 42px);
  line-height: 1;
}

.result-title {
  font-size: clamp(22px, 3.2vh, 26px);
  font-weight: 900;
  color: var(--text-main);
  margin-top: 4px;
}

.result-score-summary {
  font-size: clamp(12.5px, 1.8vh, 14px);
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.4;
}

/* Dual Fluency Cards */
.fluency-cards-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.fluency-score-card {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: clamp(12px, 2vh, 16px);
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform 0.2s var(--ease-soft);
}

.card-f1 {
  border-color: var(--primary-border);
  background: linear-gradient(160deg, var(--card-bg), var(--primary-light));
}

.card-f2 {
  border-color: var(--warning-border);
  background: linear-gradient(160deg, var(--card-bg), var(--warning-bg));
}

.card-badge {
  font-size: 10.5px;
  font-weight: 800;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--panel-bg);
  display: inline-block;
  margin-bottom: 4px;
  color: var(--text-muted);
}

.fluency-score-card .card-title {
  font-size: 13px;
  font-weight: 800;
  color: var(--text-main);
}

.big-score {
  font-size: clamp(30px, 5vh, 42px);
  font-weight: 900;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  margin: 4px 0;
  line-height: 1;
}

.card-f2 .big-score {
  color: var(--oc-orange-7);
}

.score-sub {
  font-size: 11px;
  color: var(--text-dim);
}

/* Category Breakdown */
.breakdown-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.breakdown-title {
  font-size: 13.5px;
  font-weight: 800;
  color: var(--text-main);
}

.category-block {
  border-radius: var(--radius-md);
  padding: 10px 14px;
  border: 1.5px solid transparent;
  transition: transform 0.15s var(--ease-soft);
}

.cat-head {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 4px;
}

.cat-count-badge {
  margin-left: auto;
  font-size: 11px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.06);
}

.cat-body {
  font-size: 12.5px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.cat-item {
  color: var(--text-main);
  padding: 2px 0;
}

.cat-empty {
  color: var(--text-dim);
  font-style: italic;
  font-size: 12px;
}

.cat-lancar {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--oc-green-9);
}

.cat-normal {
  background: var(--primary-light);
  border-color: var(--primary-border);
  color: var(--oc-blue-9);
}

.cat-cukup-lambat {
  background: #f3f0ff;
  border-color: #d0bfff;
  color: #5f3dc4;
}

[data-theme="dark"] .cat-cukup-lambat {
  background: #231d3b;
  border-color: #493375;
  color: #d0bfff;
}

.cat-lambat {
  background: var(--warning-bg);
  border-color: var(--warning-border);
  color: var(--oc-orange-9);
}

.cat-salah {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger);
}

.result-actions, .history-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
  margin-bottom: 8px;
}

/* History Screen Details */
.history-filter-grid {
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
}

.filter-pill {
  padding: 7px 2px;
  font-size: 11px;
  font-weight: 700;
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  color: var(--text-muted);
  text-align: center;
  transition: all 0.12s var(--ease-soft);
}

.filter-pill.selected {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.chart-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 12px;
  box-shadow: var(--shadow-sm);
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.chart-title, .section-title {
  font-size: 13px;
  font-weight: 800;
  color: var(--text-main);
}

.chart-legend {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

.dot-f1 { background: var(--primary); }
.dot-f2 { background: var(--oc-orange-5); }

.chart-canvas-wrapper {
  width: 100%;
}

.chart-canvas-wrapper svg {
  width: 100%;
  height: auto;
  display: block;
}

.chart-empty {
  text-align: center;
  color: var(--text-dim);
  font-size: 12.5px;
  padding: 24px 8px;
}

.avg-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  text-align: center;
}

.avg-title {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-muted);
}

.avg-values {
  display: flex;
  justify-content: space-around;
  align-items: center;
  margin-top: 4px;
}

.avg-score {
  font-size: 22px;
  font-weight: 900;
  color: var(--text-main);
  display: block;
  font-variant-numeric: tabular-nums;
}

.avg-name {
  font-size: 10.5px;
  color: var(--text-dim);
}

.avg-divider {
  width: 1px;
  height: 28px;
  background: var(--card-border);
}

.history-list-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-row-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s var(--ease-soft);
}

.history-row-item:hover {
  transform: translateY(-1px);
}

.history-row-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.history-op-badge {
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--primary-light);
  color: var(--primary);
}

.history-scores-row {
  display: flex;
  gap: 16px;
}

.history-score-cell {
  font-size: 14px;
  font-weight: 800;
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
}

.history-score-cell small {
  display: block;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-dim);
}

/* ==========================================================================
   DIV 2: BAGIAN LIVE DASHBOARD (.dashboard-container)
   ========================================================================== */
.dashboard-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  background: var(--canvas-bg);
  overflow: hidden;
  container-type: inline-size;
  container-name: dashboard;
  transition: background 0.3s var(--ease-soft);
}

.companion-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--panel-border);
  background: var(--panel-bg);
  transition: background 0.3s var(--ease-soft);
}

.companion-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bolt-small {
  font-size: 18px;
}

.companion-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--text-main);
}

.companion-controls, .mobile-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--text-main);
  transition: transform 0.15s var(--ease-soft), background 0.15s var(--ease-soft);
}

.icon-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary-border);
  transform: scale(1.06);
}

.companion-scroll-area {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.companion-section {
  background: var(--panel-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s var(--ease-soft), box-shadow 0.2s var(--ease-soft);
}

/* Best Records Tiles */
.best-records-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-top: 8px;
}

.record-tile {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 10px;
  text-align: center;
  transition: all 0.18s var(--ease-soft);
}

.record-tile:hover {
  border-color: var(--primary-border);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.tile-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
}

.tile-glyph {
  font-size: 13px;
  color: var(--primary);
}

.tile-val {
  font-size: 20px;
  font-weight: 900;
  color: var(--text-main);
  margin: 2px 0;
  font-variant-numeric: tabular-nums;
}

.tile-sub {
  font-size: 10px;
  color: var(--text-dim);
}

/* Info card */
.info-card {
  background: linear-gradient(145deg, var(--panel-bg), var(--primary-light));
  border-color: var(--primary-border);
}

.info-title {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.info-desc {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.45;
}

.info-pills {
  display: flex;
  gap: 6px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.speed-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 3px 7px;
  border-radius: 999px;
}

.speed-badge.fast {
  background: var(--success-bg);
  color: var(--success);
}

.speed-badge.medium {
  background: var(--primary-light);
  color: var(--primary);
}

.speed-badge.slow {
  background: var(--warning-bg);
  color: var(--warning);
}

/* ==========================================================================
   MOBILE RESPONSIVENESS (< 768px)
   ========================================================================== */
@media (max-width: 768px) {
  body {
    background: var(--panel-bg);
  }

  .desktop-wrapper {
    padding: 0;
    width: 100%;
    height: 100dvh;
    display: block;
  }

  .desktop-canvas {
    width: 100%;
    height: 100dvh;
    max-width: 480px;
    max-height: 100dvh;
    aspect-ratio: auto;
    border-radius: 0;
    border: none;
    box-shadow: none;
    grid-template-columns: 1fr;
    margin: 0 auto;
  }

  .quiz-container {
    border-right: none;
    height: 100dvh;
  }

  .dashboard-container {
    display: none; /* Pada mobile, statistik diakses melalui tombol riwayat */
  }

  .mobile-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    background: var(--panel-bg);
    border-bottom: 1px solid var(--panel-border);
    flex-shrink: 0;
  }

  .brand-mini {
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .brand-name {
    font-size: 15px;
    font-weight: 800;
    color: var(--text-main);
  }

  .mobile-only-btn {
    display: block;
  }

  #screen-game {
    padding: 12px 14px 14px;
  }
}