/* ============================================
   KidCoder – Modern Kid-Friendly CSS
   ============================================ */

:root {
  --purple: #6C5CE7;
  --purple-light: #A29BFE;
  --purple-dark: #5A4BD1;
  --pink: #FD79A8;
  --orange: #FDCB6E;
  --green: #00B894;
  --green-light: #55EFC4;
  --blue: #74B9FF;
  --blue-dark: #0984E3;
  --red: #FF7675;
  --red-dark: #D63031;
  --yellow: #FFEAA7;
  --dark: #2D3436;
  --gray: #636E72;
  --gray-light: #B2BEC3;
  --gray-bg: #DFE6E9;
  --white: #FFFFFF;
  --bg: #F8F9FD;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 20px rgba(108, 92, 231, 0.15);
  --shadow-lg: 0 8px 40px rgba(108, 92, 231, 0.2);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Nunito', sans-serif;
  background: var(--bg);
  color: var(--dark);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
}

/* ---- SCREENS ---- */
.screen {
  display: none;
  width: 100%;
  height: 100vh;
}
.screen.active { display: flex; }

/* ============ LOGIN ============ */
#screen-login {
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #6C5CE7 0%, #A29BFE 50%, #74B9FF 100%);
  position: relative;
  overflow: hidden;
}

.login-card {
  background: var(--white);
  border-radius: 24px;
  padding: 48px 42px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  z-index: 2;
  max-width: 420px;
  width: 90%;
}
.login-card h1 {
  font-size: 1.7rem;
  font-weight: 800;
  margin: 16px 0 6px;
  color: var(--dark);
}
.login-card .subtitle {
  color: var(--gray);
  font-size: 0.95rem;
  margin-bottom: 24px;
}
.logo-area { margin-bottom: 8px; }

.input-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.input-group input {
  padding: 14px 18px;
  border: 2px solid var(--gray-bg);
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  font-family: inherit;
  text-align: center;
  outline: none;
  transition: var(--transition);
}
.input-group input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.15);
}

/* Floating shapes */
.floating-shapes { position: absolute; inset: 0; overflow: hidden; z-index: 1; pointer-events: none; }
.shape {
  position: absolute;
  border-radius: 24px;
  opacity: 0.15;
  animation: float 8s ease-in-out infinite;
}
.shape-1 { width: 120px; height: 120px; background: var(--yellow); top: 10%; left: 5%; animation-delay: 0s; }
.shape-2 { width: 80px; height: 80px; background: var(--pink); top: 60%; right: 10%; animation-delay: 2s; border-radius: 50%; }
.shape-3 { width: 100px; height: 100px; background: var(--green); bottom: 15%; left: 15%; animation-delay: 4s; }
.shape-4 { width: 60px; height: 60px; background: var(--orange); top: 20%; right: 20%; animation-delay: 6s; border-radius: 50%; }

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-25px) rotate(8deg); }
}

/* ============ BUTTONS ============ */
.btn {
  font-family: inherit;
  font-weight: 700;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.btn:active { transform: scale(0.96); }

.btn-primary {
  background: var(--purple);
  color: var(--white);
  padding: 12px 28px;
  font-size: 1rem;
}
.btn-primary:hover { background: var(--purple-dark); box-shadow: var(--shadow); }

.btn-secondary {
  background: var(--gray-bg);
  color: var(--dark);
  padding: 10px 20px;
  font-size: 0.9rem;
}
.btn-secondary:hover { background: var(--gray-light); }

.btn-lg { padding: 14px 32px; font-size: 1.15rem; }
.btn-small { padding: 8px 14px; font-size: 0.82rem; }

/* Back button — large, always visible, high contrast */
.btn-back {
  background: rgba(0, 0, 0, 0.25);
  color: #FFF;
  padding: 10px 20px;
  font-size: 1rem;
  font-weight: 800;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 14px;
  backdrop-filter: blur(4px);
  letter-spacing: 0.3px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}
.btn-back:hover {
  background: rgba(0, 0, 0, 0.45);
  border-color: rgba(255, 255, 255, 0.7);
  transform: scale(1.04);
}

/* Action button (hint, reset) — pill with translucent bg */
.btn-action {
  background: rgba(255, 255, 255, 0.2);
  color: #FFF;
  padding: 10px 18px;
  font-size: 0.92rem;
  font-weight: 700;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-radius: 12px;
  backdrop-filter: blur(4px);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}
.btn-action:hover {
  background: rgba(255, 255, 255, 0.35);
  border-color: rgba(255, 255, 255, 0.6);
  transform: scale(1.04);
}

/* Top badge (timer, score, etc.) */
.top-badge {
  background: rgba(255, 255, 255, 0.2);
  color: #FFF;
  padding: 8px 16px;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 800;
  border: 2px solid rgba(255, 255, 255, 0.25);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.btn-icon {
  background: rgba(0, 0, 0, 0.25);
  color: #FFF;
  padding: 10px 20px;
  font-size: 1rem;
  font-weight: 800;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 14px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}
.btn-icon:hover { background: rgba(0, 0, 0, 0.45); color: var(--white); border-color: rgba(255, 255, 255, 0.7); }
.btn-hint { background: var(--yellow); color: var(--dark); }
.btn-reset { background: var(--gray-bg); color: var(--dark); }
.btn-run { font-size: 1.1rem; padding: 12px 32px; background: linear-gradient(135deg, #00B894, #55EFC4); border-radius: 14px; box-shadow: 0 4px 12px rgba(0, 184, 148, 0.3); }
.btn-run:hover { background: linear-gradient(135deg, #00a884, #4AE6B8); box-shadow: 0 6px 16px rgba(0, 184, 148, 0.4); }
.btn-step { font-size: 0.9rem; }
.btn-clear { font-size: 0.9rem; }

/* ============ TOP BAR ============ */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--white);
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  z-index: 10;
  flex-shrink: 0;
  min-height: 64px;
  gap: 16px;
}
.top-bar-left { display: flex; align-items: center; gap: 10px; }
.top-bar-right { display: flex; align-items: center; gap: 12px; }
.brand { font-size: 1.1rem; font-weight: 800; color: var(--purple); }
.user-badge {
  background: var(--purple-light);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 700;
}
.star-badge {
  background: var(--yellow);
  color: var(--dark);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 700;
}
.level-title-bar { font-weight: 800; font-size: 1.15rem; color: #FFF; text-shadow: 0 1px 3px rgba(0,0,0,0.2); }

/* ---- Themed Top Bars ---- */
.coding-top-bar {
  background: linear-gradient(135deg, #6C5CE7, #A29BFE);
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.35);
}

.typing-top-bar {
  background: linear-gradient(135deg, #0984E3, #00CEC9);
  box-shadow: 0 4px 20px rgba(9, 132, 227, 0.35);
}

.logic-top-bar {
  background: linear-gradient(135deg, #E17055, #FDCB6E);
  box-shadow: 0 4px 20px rgba(225, 112, 85, 0.35);
}

.quiz-top-bar {
  background: linear-gradient(135deg, #6C5CE7, #0984E3);
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.35);
}

.memory-top-bar {
  background: linear-gradient(135deg, #6C5CE7, #FD79A8);
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.35);
}

.thinking-top-bar {
  background: linear-gradient(135deg, #0984E3, #00CEC9);
  box-shadow: 0 4px 20px rgba(9, 132, 227, 0.35);
}

.car-top-bar {
  background: linear-gradient(135deg, #E17055, #FDCB6E);
  box-shadow: 0 4px 20px rgba(225, 112, 85, 0.35);
}

/* ============ LEVEL SELECT ============ */
#screen-levels { flex-direction: column; }
.levels-container {
  flex: 1;
  overflow-y: auto;
  padding: 30px;
}
.section-title {
  font-size: 1.6rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 24px;
  color: var(--dark);
}
.levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
}
.level-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: 3px solid transparent;
}
.level-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--purple-light); }
.level-card.locked { opacity: 0.5; cursor: not-allowed; }
.level-card.locked:hover { transform: none; box-shadow: var(--shadow); border-color: transparent; }
.level-card.completed { border-color: var(--green-light); }

.level-number {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--purple);
  color: var(--white);
  font-size: 1.4rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}
.level-card.completed .level-number { background: var(--green); }
.level-card.locked .level-number { background: var(--gray-light); }

.level-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.level-card p { font-size: 0.8rem; color: var(--gray); line-height: 1.4; }
.level-stars { margin-top: 10px; font-size: 1.2rem; letter-spacing: 2px; }

/* ============ GAME LAYOUT ============ */
#screen-game { flex-direction: column; }
#screen-typing { flex-direction: column; }
.game-layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(0, 2fr);
  gap: 16px;
  padding: 16px;
  overflow: hidden;
  min-height: 0;
  background: linear-gradient(180deg, #F0EDFF 0%, #F8F9FD 40%);
}

.game-col-left {
  display: flex;
  gap: 12px;
  overflow: hidden;
  min-height: 0;
}

.panel {
  display: flex;
  flex-direction: column;
  padding: 16px;
  overflow: hidden;
  border-radius: 16px;
  background: var(--white);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  border: 2px solid #E8E4F8;
}
.panel-title {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--white);
  background: linear-gradient(135deg, #6C5CE7, #A29BFE);
  padding: 10px 16px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(108, 92, 231, 0.2);
}

/* Toolbox */
.panel-toolbox {
  background: var(--white);
}
.level-desc { font-size: 0.78rem; color: var(--gray); margin-bottom: 12px; line-height: 1.4; }
.toolbox { display: flex; flex-direction: column; gap: 8px; overflow-y: auto; flex: 1; }

/* Program Area */
.panel-program {
  background: var(--white);
  min-height: 0;
}
.program-area {
  flex: 1;
  min-height: 120px;
  border: 3px dashed #A29BFE;
  border-radius: 14px;
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: var(--transition);
  position: relative;
  background: #FAFAFF;
}
.program-area.drag-over { border-color: var(--purple); background: #F0EDFF; }
.drop-placeholder {
  color: var(--gray-light);
  text-align: center;
  padding: 30px 10px;
  font-size: 0.9rem;
  font-weight: 600;
}
.program-controls {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

/* Game Panel */
.panel-game {
  background: var(--white);
  min-height: 0;
}
.game-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}
.game-svg {
  width: 100%;
  height: 100%;
  max-width: min(100%, 600px);
  max-height: min(100%, 600px);
  border-radius: 16px;
  background: var(--white);
  box-shadow: 0 8px 32px rgba(108, 92, 231, 0.15);
  border: 3px solid #E8E4F8;
}
.game-message {
  text-align: center;
  font-weight: 700;
  min-height: 28px;
  padding: 4px;
  font-size: 0.85rem;
}
.game-message.error { color: var(--red-dark); }
.game-message.success { color: var(--green); }

/* ============ PUZZLE BLOCKS ============ */
.block {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: grab;
  user-select: none;
  box-shadow: 0 3px 8px rgba(0,0,0,0.12);
  transition: var(--transition);
  position: relative;
  min-height: 42px;
  flex-wrap: wrap;
}
.block:active { cursor: grabbing; }
.block:hover { transform: scale(1.03); }

.block .block-icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.block-forward { background: #74B9FF; color: var(--white); }
.block-turn_right { background: #FDCB6E; color: var(--dark); }
.block-turn_left { background: #FD79A8; color: var(--white); }
.block-repeat_3, .block-repeat_5 { background: #6C5CE7; color: var(--white); border: 2px solid #A29BFE; }
.block-if_wall { background: #E17055; color: var(--white); border: 2px solid #FAB1A0; }
.block-if_path_clear { background: #00B894; color: var(--white); border: 2px solid #55EFC4; }
.block-if_wall_ahead { background: #D63031; color: var(--white); border: 2px solid #FF7675; }
.block-collect { background: #00B894; color: var(--white); }
.block-define_func { background: #0984E3; color: var(--white); border: 2px solid #74B9FF; }
.block-call_func { background: #0984E3; color: var(--white); }

/* Nested drop area inside container blocks */
.block-body {
  width: 100%;
  margin-top: 6px;
  margin-left: 0;
  padding: 10px;
  min-height: 52px;
  border: 2px dashed rgba(255,255,255,0.5);
  border-radius: 10px;
  background: rgba(0,0,0,0.08);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.block-body:empty::before {
  content: "⬇ Przeciągnij tu blok";
  color: rgba(255,255,255,0.6);
  font-size: 0.72rem;
  font-weight: 600;
  text-align: center;
  padding: 6px 0;
}
/* Shrink inner blocks to fit inside containers */
.block-body .block {
  font-size: 0.72rem;
  padding: 6px 10px;
  min-height: 32px;
  gap: 5px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}
.block-body .block .block-icon {
  width: 20px;
  height: 20px;
}

.block.executing {
  outline: 3px solid var(--yellow);
  outline-offset: 2px;
  animation: pulse 0.6s ease-in-out;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.06); }
  100% { transform: scale(1); }
}

.block .btn-remove {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--red);
  color: var(--white);
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  opacity: 0;
  transition: var(--transition);
  line-height: 1;
  padding: 0;
}
.block:hover .btn-remove { opacity: 1; }

/* dragging state */
.block.dragging { opacity: 0.5; }

/* ============ MODALS ============ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
.modal-overlay.visible { display: flex; }

.modal-card {
  background: var(--white);
  border-radius: 24px;
  padding: 40px 36px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  max-width: 400px;
  width: 90%;
  animation: modalIn 0.35s ease;
}
@keyframes modalIn {
  from { transform: scale(0.85); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.modal-card h2 { font-size: 1.5rem; margin-bottom: 8px; }
.modal-card p { color: var(--gray); margin-bottom: 20px; }
.modal-buttons { display: flex; flex-direction: column; gap: 10px; }
.modal-stars { font-size: 2.5rem; letter-spacing: 6px; margin-bottom: 12px; }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .game-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    padding: 10px;
    gap: 10px;
  }
  .game-col-left {
    flex-direction: row;
    gap: 10px;
    min-height: 180px;
    max-height: 40vh;
  }
  .panel-toolbox { max-height: none; min-height: 0; }
  .panel-program { min-height: 0; }
  .panel { border-radius: 12px; }
}

/* ============ TABS ============ */
.tabs-bar {
  display: flex;
  gap: 0;
  background: var(--white);
  border-bottom: 2px solid var(--gray-bg);
  padding: 0 20px;
}
.tab-btn {
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  padding: 12px 28px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--gray);
  cursor: pointer;
  transition: var(--transition);
}
.tab-btn:hover { color: var(--purple); }
.tab-btn.active {
  color: var(--purple);
  border-bottom-color: var(--purple);
}
.tab-content { display: none; flex: 1; overflow-y: auto; }
.tab-content.active { display: block; }

/* ============ TYPING GAME ============ */
.typing-layout {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 20px;
  overflow-y: auto;
  background: linear-gradient(180deg, #E8F4FD 0%, #F8F9FD 40%);
}
.typing-main {
  max-width: 750px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.typing-desc {
  text-align: center;
  color: var(--gray);
  font-size: 0.95rem;
  margin-bottom: 4px;
}
.typing-display {
  background: var(--white);
  border-radius: 20px;
  padding: 28px 32px;
  font-size: 1.5rem;
  font-family: 'Nunito', monospace;
  line-height: 2;
  box-shadow: 0 8px 32px rgba(9, 132, 227, 0.12);
  min-height: 100px;
  max-height: 200px;
  overflow-y: auto;
  letter-spacing: 1px;
  word-wrap: break-word;
  border: 3px solid #B2D8F7;
  position: relative;
}
.typing-display::before {
  content: "⌨️";
  position: absolute;
  top: 6px;
  right: 10px;
  font-size: 1.2rem;
  opacity: 0.15;
}
.typing-done { color: var(--green); }
.typing-current {
  background: var(--yellow);
  border-radius: 4px;
  padding: 2px 1px;
  animation: blink 0.8s ease-in-out infinite;
}
.typing-current.error-char { background: var(--red); color: var(--white); }
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}
.typing-remaining { color: var(--gray-light); }

.typing-input {
  padding: 18px 24px;
  border: 3px solid #E8E4F8;
  border-radius: 16px;
  font-size: 1.2rem;
  font-family: inherit;
  text-align: center;
  outline: none;
  transition: var(--transition);
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.04);
  background: var(--white);
}
.typing-input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.15);
}
.typing-input.input-error {
  border-color: var(--red);
  box-shadow: 0 0 0 4px rgba(255, 118, 117, 0.2);
}
.typing-input.input-correct {
  border-color: var(--green);
}

.typing-stats {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.typing-result-stats {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin: 12px 0;
}
.stat-box {
  background: var(--white);
  border-radius: 16px;
  padding: 14px 20px;
  text-align: center;
  min-width: 90px;
  border: 3px solid var(--gray-bg);
  transition: var(--transition);
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.05);
}
.stat-box:hover { transform: translateY(-2px); }
.stat-accuracy { border-color: #00B894; }
.stat-accuracy .stat-value { color: #00B894; }
.stat-speed { border-color: #0984E3; }
.stat-speed .stat-value { color: #0984E3; }
.stat-correct { border-color: #6C5CE7; }
.stat-correct .stat-value { color: #6C5CE7; }
.stat-errors { border-color: #E17055; }
.stat-errors .stat-value { color: #E17055; }
.stat-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--purple);
}
.stat-label {
  font-size: 0.72rem;
  color: var(--gray);
  font-weight: 600;
  margin-top: 2px;
}
.typing-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  padding-top: 8px;
}
.typing-controls .btn {
  border-radius: 14px;
  padding: 12px 24px;
  font-size: 1rem;
}

/* Keyboard visual */
.keyboard-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  margin-top: 8px;
  background: linear-gradient(145deg, #F0EDFF, #E8F4FD);
  padding: 16px 12px;
  border-radius: 16px;
  border: 2px solid #E8E4F8;
}
.kb-row {
  display: flex;
  gap: 4px;
}
.kb-key {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--white);
  border: 2px solid #E8E4F8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--dark);
  transition: var(--transition);
  text-transform: uppercase;
  box-shadow: 0 2px 4px rgba(0,0,0,0.06);
}
.kb-key.active {
  background: var(--purple);
  color: var(--white);
  border-color: var(--purple);
  transform: scale(1.1);
  box-shadow: 0 2px 8px rgba(108, 92, 231, 0.4);
}
.kb-key.correct {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}
.kb-key.wrong {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}
.kb-key.space {
  width: 220px;
}

/* Logout button */
.btn-logout {
  background: transparent;
  color: var(--dark);
  border: 2px solid var(--gray-bg);
  font-size: 0.78rem;
  padding: 5px 12px;
  cursor: pointer;
}
.btn-logout:hover {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}

/* ============ CAR GAME ============ */
.btn-car-bonus {
  margin-top: 8px;
  background: linear-gradient(135deg, #E17055, #FDCB6E);
  color: #FFF;
  border: none;
  border-radius: 20px;
  padding: 5px 14px;
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-car-bonus:hover {
  transform: scale(1.08);
  box-shadow: 0 3px 12px rgba(225, 112, 85, 0.4);
}
.car-game-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  gap: 12px;
  flex: 1;
  background: linear-gradient(180deg, #FFF3E0 0%, #F8F9FD 40%);
}
.car-svg {
  width: 100%;
  max-width: 500px;
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  background: linear-gradient(180deg, #74B9FF 0%, #DFE6E9 100%);
  border: 4px solid #4A5568;
}

/* ============ LOGIC GAME ============ */
#screen-logic { flex-direction: column; }
#screen-quiz { flex-direction: column; }
#screen-thinking { flex-direction: column; }
#screen-memory { flex-direction: column; }
#screen-adventure { flex-direction: column; }
#screen-crossword { flex-direction: column; }
#screen-sudoku { flex-direction: column; }
.logic-layout {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 24px 20px;
  overflow-y: auto;
}
/* Themed game backgrounds */
.logic-game-bg {
  background: linear-gradient(180deg, #FFF3E0 0%, #FFF8F0 30%, #F8F9FD 70%);
}
.quiz-game-bg {
  background: linear-gradient(180deg, #EDE7F6 0%, #F3F0FA 30%, #F8F9FD 70%);
}
.thinking-game-bg {
  background: linear-gradient(180deg, #E0F7FA 0%, #ECF9FC 30%, #F8F9FD 70%);
}
.memory-game-bg {
  background: linear-gradient(180deg, #F3E5F5 0%, #EDE7F6 30%, #F8F9FD 70%);
}
.adventure-game-bg {
  background: linear-gradient(180deg, #E8F5E9 0%, #EDF7EE 30%, #F8F9FD 70%);
}
.crossword-game-bg {
  background: linear-gradient(180deg, #FFFDE7 0%, #FFFEF2 30%, #F8F9FD 70%);
}
.logic-main {
  max-width: 720px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}
.logic-desc {
  text-align: center;
  color: var(--dark);
  font-size: 1.15rem;
  line-height: 1.7;
  font-weight: 700;
  background: var(--white);
  padding: 20px 28px;
  border-radius: 18px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  width: 100%;
  border-left: 5px solid var(--orange);
}
.quiz-game-bg .logic-desc {
  border-left-color: var(--purple);
}
.logic-puzzle-area {
  background: var(--white);
  border-radius: 24px;
  padding: 32px 36px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  width: 100%;
  text-align: center;
  min-height: 100px;
  border: 3px solid transparent;
  position: relative;
  overflow: hidden;
}
.logic-game-bg .logic-puzzle-area {
  border-color: #FFE0B2;
}
.quiz-game-bg .logic-puzzle-area {
  border-color: #E8E4F8;
}
.thinking-game-bg .logic-puzzle-area {
  border-color: #B2EBF2;
}
.logic-puzzle-area .puzzle-sequence {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  font-size: 1.8rem;
  font-weight: 800;
}
.logic-puzzle-area .puzzle-item {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  background: linear-gradient(135deg, #F8F7FF, #EDE7F6);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid #E8E4F8;
  font-size: 1.6rem;
  box-shadow: 0 3px 8px rgba(108, 92, 231, 0.1);
  transition: transform 0.15s;
}
.logic-puzzle-area .puzzle-item:hover {
  transform: scale(1.08);
}
.logic-puzzle-area .puzzle-item.missing {
  background: linear-gradient(135deg, #FFEAA7, #FDCB6E);
  border-color: #F39C12;
  font-size: 1.5rem;
  color: var(--dark);
  animation: missingPulse 2s ease-in-out infinite;
}
@keyframes missingPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(253, 203, 110, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(253, 203, 110, 0); }
}
.logic-puzzle-area .puzzle-rule {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--purple);
  margin: 12px 0;
  line-height: 1.6;
}
.logic-puzzle-area .puzzle-condition {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--dark);
  margin: 8px 0;
}
.logic-puzzle-area .puzzle-statement {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.6;
}
.logic-options {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}
.logic-option {
  background: var(--white);
  border: 3px solid #E8E4F8;
  border-radius: 18px;
  padding: 20px 32px;
  font-size: 1.3rem;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
  min-width: 120px;
  text-align: center;
  font-family: inherit;
  position: relative;
  overflow: hidden;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.05);
}
.logic-option::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(108,92,231,0.04), rgba(253,121,168,0.04));
  opacity: 0;
  transition: opacity 0.2s;
}
.logic-option:hover::before { opacity: 1; }
.logic-option:nth-child(1) { border-color: #A29BFE; }
.logic-option:nth-child(2) { border-color: #74B9FF; }
.logic-option:nth-child(3) { border-color: #55EFC4; }
.logic-option:nth-child(4) { border-color: #FFEAA7; }
.logic-option:nth-child(5) { border-color: #FAB1A0; }
.logic-option:nth-child(6) { border-color: #FD79A8; }
.logic-option:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 8px 24px rgba(108, 92, 231, 0.15);
}
.logic-option.selected {
  border-color: var(--purple);
  background: var(--purple);
  color: var(--white);
}
.logic-option.correct {
  border-color: var(--green);
  background: linear-gradient(135deg, #00B894, #55EFC4);
  color: var(--white);
  animation: correctBounce 0.5s ease;
}
@keyframes correctBounce {
  0% { transform: scale(1); }
  30% { transform: scale(1.12); }
  60% { transform: scale(0.95); }
  100% { transform: scale(1); }
}
.logic-option.wrong {
  border-color: var(--red);
  background: var(--red);
  color: var(--white);
}
.logic-feedback {
  text-align: center;
  font-weight: 700;
  font-size: 1.1rem;
  min-height: 30px;
  padding: 12px 16px;
  border-radius: 14px;
  transition: all 0.3s ease;
}
.logic-feedback.correct { color: var(--green); background: #E6FFED; border: 2px solid #55EFC4; }
.logic-feedback.wrong { color: var(--red-dark); background: #FFEAEA; border: 2px solid #FAB1A0; }
.logic-explanation {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.5;
  margin: 8px 0;
  text-align: left;
}

/* Logic game types */
.puzzle-grid-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  margin: 12px 0;
  background: #4A5568;
  padding: 6px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.puzzle-grid-row {
  display: flex;
  gap: 3px;
}
.puzzle-grid-cell {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  background: #FFF;
  border: 2px solid #E8E4F8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: transform 0.15s;
}
.puzzle-grid-cell:hover {
  transform: scale(1.05);
}
.puzzle-grid-cell.wall {
  background: #2D3436;
  border-color: #636E72;
}
.puzzle-objects {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  padding: 16px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.puzzle-emoji {
  font-size: 2.2rem;
  transition: transform 0.2s;
}
.puzzle-emoji:hover {
  transform: scale(1.3);
}
.puzzle-mirror-arrow {
  text-align: center;
  font-size: 1.2rem;
  color: var(--purple);
  font-weight: 700;
  margin: 10px 0;
  padding: 8px;
  background: linear-gradient(90deg, rgba(108,92,231,0.1), rgba(162,155,254,0.2), rgba(108,92,231,0.1));
  border-radius: 8px;
}

/* ============ DIPLOMA ============ */
.diploma-container {
  text-align: center;
}
.diploma-preview {
  background: #FFFDF7;
  border: 4px solid #FDCB6E;
  border-radius: 16px;
  padding: 40px 30px;
  max-width: 700px;
  margin: 0 auto 20px;
  box-shadow: 0 8px 30px rgba(253, 203, 110, 0.3);
  position: relative;
  overflow: hidden;
}
.diploma-preview::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border: 2px dashed #F39C12;
  border-radius: 12px;
  margin: 10px;
  pointer-events: none;
}
.diploma-preview h1 {
  font-size: 2rem;
  color: #6C5CE7;
  margin-bottom: 6px;
}
.diploma-preview h2 {
  font-size: 1.5rem;
  color: #2D3436;
  margin: 10px 0;
}
.diploma-preview .diploma-name {
  font-size: 2.2rem;
  color: #E17055;
  font-weight: 800;
  margin: 16px 0;
}
.diploma-preview .diploma-stats {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin: 20px 0;
  flex-wrap: wrap;
}
.diploma-preview .diploma-stat {
  text-align: center;
}
.diploma-preview .diploma-stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: #6C5CE7;
}
.diploma-preview .diploma-stat-label {
  font-size: 0.85rem;
  color: #636E72;
}
.diploma-preview .diploma-date {
  margin-top: 20px;
  color: #636E72;
  font-size: 0.9rem;
}
.diploma-lock-message {
  color: #636E72;
  font-size: 1.1rem;
  margin-top: 40px;
}
.diploma-lock-message strong {
  color: #6C5CE7;
}
.btn-print {
  margin-top: 16px;
}

@media print {
  body > *:not(.diploma-print) { display: none !important; }
  .diploma-print {
    display: block !important;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 99999;
    background: #fff;
  }
  .diploma-print .diploma-preview {
    border: 4px solid #FDCB6E;
    max-width: 100%;
    margin: 30px;
    box-shadow: none;
  }
}

/* ============ QUIZ STYLES ============ */
.quiz-code-block {
  background: linear-gradient(135deg, #2D3436, #1A1A2E);
  color: #DFE6E9;
  padding: 18px 22px;
  border-radius: 14px;
  font-family: "Fira Code", "Courier New", monospace;
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
  margin: 12px 0 20px;
  border-left: 5px solid #6C5CE7;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.logic-option-btn {
  background: var(--white);
  border: 3px solid #E8E4F8;
  border-radius: 18px;
  padding: 18px 28px;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  min-width: 100px;
  text-align: left;
  font-family: inherit;
  display: block;
  width: 100%;
  margin-bottom: 10px;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.04);
}
.logic-option-btn:nth-child(1) { border-color: #A29BFE; }
.logic-option-btn:nth-child(2) { border-color: #74B9FF; }
.logic-option-btn:nth-child(3) { border-color: #55EFC4; }
.logic-option-btn:nth-child(4) { border-color: #FFEAA7; }
.logic-option-btn:hover {
  transform: translateX(6px);
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.15);
}
.logic-option-btn.wrong {
  background: #FFEAEA;
  border-color: #FF7675;
  color: #D63031;
  animation: shake 0.4s ease;
}
.logic-option-btn.correct {
  background: linear-gradient(135deg, #E6FFED, #C6F6D5);
  border-color: #00B894;
  color: #00B894;
  font-weight: 800;
}
.logic-feedback.hint {
  color: #FDCB6E;
  background: #FFF9E6;
  border: 2px solid #FDCB6E;
}
.logic-feedback.incorrect {
  color: #D63031;
  background: #FFEAEA;
  border: 2px solid #FAB1A0;
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  50% { transform: translateX(6px); }
  75% { transform: translateX(-4px); }
}

/* ============ THINKING (COMPUTATIONAL THINKING) ============ */
.thinking-instruction {
  font-size: 1.15rem;
  font-weight: 700;
  color: #2D3436;
  margin-bottom: 16px;
  text-align: center;
  line-height: 1.6;
  background: linear-gradient(135deg, #E0F7FA, #B2EBF2);
  padding: 16px 20px;
  border-radius: 14px;
  border-left: 4px solid #00CEC9;
}
.thinking-scenario {
  font-size: 1.3rem;
  font-weight: 800;
  color: #0984E3;
  text-align: center;
  padding: 16px 20px;
  background: linear-gradient(135deg, #E8F4FD, #EDE7F6);
  border-radius: 14px;
  margin-bottom: 16px;
  border: 2px solid #B2EBF2;
}
.thinking-code-block {
  background: linear-gradient(135deg, #2D3436, #1A1A2E);
  color: #55EFC4;
  padding: 18px 22px;
  border-radius: 14px;
  font-family: 'Courier New', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 16px;
  text-align: left;
  white-space: pre-wrap;
  border: 2px solid #00CEC9;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.thinking-sortable {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}
.thinking-sort-item {
  padding: 14px 18px;
  background: linear-gradient(135deg, #FFF, #F8F9FD);
  border: 3px solid #E8E4F8;
  border-radius: 14px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.2s, box-shadow 0.2s;
  user-select: none;
  position: relative;
}
.thinking-sort-item::before {
  content: "↕";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.3;
  font-size: 1.1rem;
}
.thinking-sort-item:hover {
  border-color: #00CEC9;
  box-shadow: 0 4px 16px rgba(0, 206, 201, 0.2);
  transform: translateX(4px);
}
.thinking-sort-item.thinking-sort-selected {
  border-color: #0984E3;
  background: linear-gradient(135deg, #E8F4FD, #E0F7FA);
  transform: scale(1.03);
  box-shadow: 0 6px 20px rgba(9, 132, 227, 0.25);
}
.thinking-check-btn {
  margin-top: 12px;
  width: 100%;
  max-width: 300px;
}
.thinking-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}
.thinking-step-btn {
  padding: 14px 18px;
  background: linear-gradient(135deg, #FFF, #F8F9FD);
  border: 3px solid #E8E4F8;
  border-radius: 14px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
}
.thinking-step-btn:hover {
  border-color: #FDCB6E;
  background: linear-gradient(135deg, #FFFDF0, #FFF9E6);
  transform: translateX(4px);
}
.thinking-step-btn.correct {
  border-color: #00B894;
  background: linear-gradient(135deg, #E6FFF5, #C6F6D5);
}
.thinking-step-btn.wrong {
  border-color: #D63031;
  background: linear-gradient(135deg, #FFEAEA, #FED7D7);
  animation: shake 0.4s;
}
.thinking-checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: linear-gradient(135deg, #FFF, #F8F9FD);
  border: 3px solid #E8E4F8;
  border-radius: 14px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 6px;
}
.thinking-checkbox-label:hover {
  border-color: #00CEC9;
  transform: translateX(4px);
}
.thinking-checkbox {
  width: 22px;
  height: 22px;
  accent-color: #0984E3;
  cursor: pointer;
}

/* ============ TAB HERO BANNERS ============ */
.tab-hero {
  text-align: center;
  border-radius: 20px;
  padding: 28px 20px 24px;
  margin-bottom: 28px;
  position: relative;
  overflow: hidden;
}
.tab-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.07;
  background: radial-gradient(circle at 20% 80%, #fff 0%, transparent 60%),
              radial-gradient(circle at 80% 20%, #fff 0%, transparent 60%);
  pointer-events: none;
}
.tab-hero-icon {
  font-size: 3rem;
  margin-bottom: 6px;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.15));
}
.tab-hero-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 6px;
}
.tab-hero-desc {
  font-size: 0.95rem;
  font-weight: 600;
  opacity: 0.85;
}

/* Adventure hero */
.adventure-hero {
  background: linear-gradient(135deg, #00B894, #0984E3);
  color: #FFF;
}
/* Memory hero */
.memory-hero {
  background: linear-gradient(135deg, #6C5CE7, #FD79A8);
  color: #FFF;
}
/* Thinking hero */
.thinking-hero {
  background: linear-gradient(135deg, #0984E3, #00CEC9);
  color: #FFF;
}

/* ============ ADVENTURE LEVEL CARDS ============ */
.adventure-levels-grid {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)) !important;
}
.adv-level-card {
  background: var(--white);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 2px solid transparent;
}
.adv-level-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.15);
  border-color: var(--purple-light);
}
.adv-level-card.locked {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(0.4);
}
.adv-level-card.locked:hover {
  transform: none;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  border-color: transparent;
}
.adv-level-card.completed {
  border-color: var(--green-light);
}
.alc-icon-area {
  padding: 20px 16px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  min-height: 90px;
}
.alc-icon {
  font-size: 3rem;
  filter: drop-shadow(0 4px 10px rgba(0,0,0,0.2));
}
.alc-number {
  position: absolute;
  top: 10px;
  right: 12px;
  background: rgba(255,255,255,0.3);
  color: #FFF;
  font-weight: 900;
  font-size: 0.85rem;
  padding: 2px 10px;
  border-radius: 12px;
  backdrop-filter: blur(4px);
}
.alc-body {
  padding: 14px 16px 18px;
}
.alc-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 4px;
}
.alc-desc {
  font-size: 0.82rem;
  color: var(--gray);
  font-weight: 600;
  margin-bottom: 8px;
}
.adv-level-card.completed .alc-desc { color: var(--green); }
.alc-stars {
  font-size: 1.1rem;
  letter-spacing: 2px;
}

/* ============ MEMORY LEVEL CARDS ============ */
.memory-levels-grid {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)) !important;
}
.memory-level-card {
  background: var(--white);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.12);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 2px solid transparent;
  position: relative;
}
.memory-level-card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 12px 36px rgba(108, 92, 231, 0.2);
  border-color: var(--purple-light);
}
.memory-level-card.completed {
  border-color: var(--green-light);
}
.mlc-accent {
  height: 6px;
  width: 100%;
}
.mlc-body {
  padding: 16px 18px 18px;
}
.mlc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.mlc-number {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  color: #FFF;
  font-size: 0.95rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mlc-stars {
  font-size: 1rem;
  letter-spacing: 2px;
}
.mlc-preview {
  font-size: 2rem;
  letter-spacing: 6px;
  text-align: center;
  padding: 10px 0;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border-radius: 12px;
  margin-bottom: 12px;
}
.mlc-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
}
.mlc-info {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mlc-badge {
  background: var(--purple-light);
  color: #FFF;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 10px;
}
.mlc-done {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--green);
}

/* ============ THINKING LEVEL CARDS ============ */
.thinking-levels-grid {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)) !important;
}
.thinking-level-card {
  background: var(--white);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(9, 132, 227, 0.1);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 2px solid transparent;
}
.thinking-level-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 36px rgba(9, 132, 227, 0.18);
  border-color: var(--blue);
}
.thinking-level-card.completed {
  border-color: var(--green-light);
}
.tlc-top {
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #FFF;
}
.tlc-icon {
  font-size: 2rem;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.2));
}
.tlc-number {
  font-size: 0.85rem;
  font-weight: 900;
  background: rgba(255,255,255,0.25);
  padding: 2px 10px;
  border-radius: 10px;
  backdrop-filter: blur(4px);
}
.tlc-body {
  padding: 14px 16px 16px;
}
.tlc-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 4px;
}
.tlc-desc {
  font-size: 0.8rem;
  color: var(--gray);
  line-height: 1.4;
  margin-bottom: 10px;
}
.tlc-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.tlc-badge {
  font-size: 0.7rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 10px;
  text-transform: capitalize;
}
.tlc-stars {
  font-size: 1rem;
  letter-spacing: 2px;
}

/* ============ ADVENTURE STYLES (GAME) ============ */

.adventure-top-bar {
  background: linear-gradient(135deg, #2D3436, #636E72);
  box-shadow: 0 4px 20px rgba(45, 52, 54, 0.35);
}

/* ============ ADVENTURE DUNGEON GAME ============ */
.adventure-game-area {
  gap: 12px;
  position: relative;
  align-items: center;
  overflow: hidden;
}

/* Stats bar */
.adv-stats-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  background: linear-gradient(135deg, #2D3436, #636E72);
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(45, 52, 54, 0.3);
  border: 2px solid #4A5568;
  width: 100%;
}
.adv-stat {
  font-weight: 800;
  font-size: 1rem;
  color: #FFF;
  background: rgba(255,255,255,0.1);
  padding: 4px 12px;
  border-radius: 10px;
}
.adv-hint-stat {
  font-size: 0.85rem;
  font-weight: 600;
  color: #FFEAA7;
  flex-basis: 100%;
  text-align: center;
  background: rgba(253, 203, 110, 0.1);
  padding: 6px 12px;
  border-radius: 8px;
}

/* Flash message */
.adv-flash {
  font-weight: 800;
  font-size: 0.95rem;
  color: #6C5CE7;
  text-align: center;
  min-height: 24px;
  opacity: 0;
  transition: opacity 0.2s;
}
.adv-flash.adv-flash-anim {
  animation: advFlash 1.4s ease forwards;
}
@keyframes advFlash {
  0% { opacity: 0; transform: translateY(6px); }
  15% { opacity: 1; transform: translateY(0); }
  75% { opacity: 1; }
  100% { opacity: 0; }
}

/* Grid */
.adv-grid {
  display: grid;
  gap: 4px;
  width: 100%;
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(45, 52, 54, 0.25);
  border: 4px solid #2D3436;
  background: #2D3436;
  margin: 0 auto;
}
.adv-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  min-width: 0;
  transition: background 0.2s;
}
.adv-cell-wall { background: #2D3436; }
.adv-cell-floor { background: #EDF2F7; border: 1px solid #E2E8F0; }
.adv-cell-gem { background: linear-gradient(135deg, #FEFCBF, #FFF9C4); border: 1px solid #F6E05E; }
.adv-cell-diamond { background: linear-gradient(135deg, #BEE3F8, #E0F7FA); border: 1px solid #90CDF4; }
.adv-cell-key { background: linear-gradient(135deg, #FEFCBF, #FFF3E0); border: 1px solid #F6E05E; }
.adv-cell-locked { background: linear-gradient(135deg, #CBD5E0, #E2E8F0); border: 1px solid #A0AEC0; }
.adv-cell-exit { background: linear-gradient(135deg, #C6F6D5, #B2F5EA); border: 1px solid #68D391; animation: exitGlow 2s ease-in-out infinite; }
@keyframes exitGlow {
  0%, 100% { box-shadow: inset 0 0 8px rgba(104, 211, 145, 0.3); }
  50% { box-shadow: inset 0 0 16px rgba(104, 211, 145, 0.6); }
}
.adv-cell-trap { background: linear-gradient(135deg, #FED7D7, #FFF5F5); border: 1px solid #FC8181; }
.adv-cell-heart { background: linear-gradient(135deg, #FED7E2, #FFF5F7); border: 1px solid #F687B3; }

/* Entities & emojis */
.adv-tile-emoji {
  font-size: clamp(0.7rem, 2.5vw, 1.4rem);
  line-height: 1;
  pointer-events: none;
}
.adv-entity {
  font-size: clamp(0.9rem, 3vw, 1.6rem);
  line-height: 1;
  z-index: 2;
}
.adv-player {
  filter: drop-shadow(0 2px 4px rgba(108, 92, 231, 0.4));
  animation: advPlayerPulse 1.5s ease-in-out infinite;
}
@keyframes advPlayerPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}
.adv-monster {
  filter: drop-shadow(0 2px 4px rgba(214, 48, 49, 0.4));
  animation: advMonsterWobble 0.6s ease-in-out infinite alternate;
}
@keyframes advMonsterWobble {
  0% { transform: translateX(-2px); }
  100% { transform: translateX(2px); }
}

/* Grid + controls side by side */
.adv-grid-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 16px;
  width: 100%;
  justify-content: center;
}

/* Controls / D-pad */
.adv-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
  padding: 0;
}
.adv-dpad {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #F0EDFF, #E8F4FD);
  padding: 14px;
  border-radius: 20px;
  border: 3px solid #E8E4F8;
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.15);
}
.adv-dpad-mid {
  display: flex;
  gap: 6px;
  align-items: center;
}
.adv-dpad-center {
  width: 64px;
  height: 64px;
  background: radial-gradient(circle, #E8E4F8 0%, transparent 70%);
  border-radius: 14px;
}
.adv-dpad-btn {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  border: 3px solid #A29BFE;
  background: linear-gradient(135deg, #FFF, #F0EDFF);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s, background 0.15s, box-shadow 0.15s;
  color: #6C5CE7;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  box-shadow: 0 3px 8px rgba(108, 92, 231, 0.15);
}
.adv-dpad-btn:hover {
  box-shadow: 0 4px 12px rgba(108, 92, 231, 0.3);
}
.adv-dpad-btn:active {
  transform: scale(0.9);
  background: linear-gradient(135deg, #A29BFE, #6C5CE7);
  color: #FFF;
}

/* Win / lose overlay */
.adv-overlay {
  position: absolute;
  inset: 0;
  background: rgba(45, 52, 54, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  border-radius: 12px;
  backdrop-filter: blur(5px);
}
.adv-overlay-card {
  background: #FFF;
  border-radius: 24px;
  padding: 32px 28px;
  text-align: center;
  max-width: 360px;
  width: 90%;
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
  border: 3px solid #E8E4F8;
}
.adv-overlay-emoji {
  font-size: 3rem;
  margin-bottom: 8px;
}
.adv-overlay-card h2 {
  margin: 0 0 8px;
  font-size: 1.5rem;
  color: #2D3436;
}
.adv-overlay-card p {
  font-size: 1.1rem;
  color: #636E72;
  margin: 4px 0;
}
.adv-overlay-detail {
  font-size: 0.85rem !important;
  color: #B2BEC3 !important;
}
.adv-win h2 { color: #00B894; }
.adv-lose h2 { color: #D63031; }
.adv-overlay-btns {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 18px;
  flex-wrap: wrap;
}
.adv-overlay-btn {
  min-width: 120px;
}

/* ============ MEMORY GAME STYLES ============ */
.memory-board {
  display: grid;
  gap: 14px;
  padding: 24px;
  width: 100%;
  margin: 0 auto;
  background: var(--white);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(108, 92, 231, 0.15);
  border: 3px solid #E8E4F8;
}
.memory-card {
  aspect-ratio: 1;
  perspective: 600px;
  cursor: pointer;
  transition: transform 0.15s;
}
.memory-card:hover:not(.matched):not(.flipped) {
  transform: scale(1.05);
}
.memory-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 14px;
}
.memory-card.flipped .memory-card-inner {
  transform: rotateY(180deg);
}
.memory-card-front, .memory-card-back {
  position: absolute;
  inset: 0;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.memory-card-front {
  background: linear-gradient(135deg, #6C5CE7 0%, #A29BFE 50%, #FD79A8 100%);
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.25);
  z-index: 2;
  flex-direction: column;
  gap: 2px;
}
.memory-card-front::after {
  content: "?";
  position: absolute;
  font-size: 1.4rem;
  font-weight: 900;
  color: rgba(255,255,255,0.2);
  bottom: 6px;
  right: 10px;
}
.memory-card-icon {
  font-size: 2rem;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}
.memory-card-back {
  transform: rotateY(180deg);
  z-index: 1;
  padding: 8px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}
.memory-card-back.emoji {
  background: linear-gradient(135deg, #FFEAA7, #FDCB6E);
  border: 3px solid #F0C040;
}
.memory-card-back.name {
  background: linear-gradient(135deg, #DFE6E9, #FFF);
  border: 3px solid #B2BEC3;
}
.memory-card-content {
  font-size: 1.1rem;
  font-weight: 700;
  color: #2D3436;
  word-break: break-word;
}
.memory-card-back.emoji .memory-card-content {
  font-size: 2.2rem;
}
.memory-card.matched .memory-card-inner {
  transform: rotateY(180deg);
}
.memory-card.matched {
  cursor: default;
  animation: memoryMatch 0.5s ease;
}
.memory-card.matched .memory-card-back {
  box-shadow: 0 0 20px rgba(0, 184, 148, 0.4);
  border-color: #00B894;
}
.memory-card-label {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  color: #2D3436;
  margin-top: 2px;
  line-height: 1.2;
}
@keyframes memoryMatch {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); }
  100% { transform: scale(1); }
}
.memory-controls {
  text-align: center;
  margin-top: 20px;
}

/* ============================================================
   RESPONSIVE DESIGN
   ============================================================ */

/* ---------- Tablet (≤ 900px) ---------- */
@media (max-width: 900px) {
  /* Tabs bar: horizontal scroll */
  .tabs-bar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 0 10px;
  }
  .tabs-bar::-webkit-scrollbar { display: none; }
  .tab-btn {
    padding: 10px 18px;
    font-size: 0.9rem;
    white-space: nowrap;
    flex-shrink: 0;
  }

  /* Top bar compact */
  .top-bar { padding: 10px 14px; min-height: 52px; gap: 10px; }
  .top-bar .brand { font-size: 0.9rem; }
  .level-title-bar { font-size: 1rem; }
  .btn-back { padding: 8px 16px; font-size: 0.92rem; }
  .btn-action { padding: 8px 14px; font-size: 0.85rem; }
  .top-badge { padding: 6px 12px; font-size: 0.85rem; }

  /* Level cards grid: smaller minimum */
  .levels-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; }
  .level-card { padding: 18px 14px; }
  .levels-container { padding: 20px; }
  .section-title { font-size: 1.3rem; }

  /* Typing */
  .typing-display { font-size: 1.2rem; padding: 18px 20px; }
  .typing-input { font-size: 1rem; }
  .kb-key { width: 32px; height: 32px; font-size: 0.7rem; }
  .kb-key.space { width: 180px; }

  /* Logic / Thinking */
  .logic-layout { padding: 16px; }
  .logic-puzzle-area { padding: 20px 18px; }
  .logic-option { padding: 14px 18px; font-size: 1.05rem; min-width: 80px; }

  /* Memory */
  .memory-board { gap: 8px; padding: 14px; }
  .memory-levels-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)) !important; }
  .adventure-levels-grid { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)) !important; }
  .thinking-levels-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)) !important; }
  .tab-hero { padding: 20px 16px; margin-bottom: 20px; }
  .tab-hero-icon { font-size: 2.4rem; }
  .tab-hero-title { font-size: 1.3rem; }

  /* Adventure */
  .adv-stats-bar { padding: 8px 12px; gap: 10px; }
  .adv-dpad-btn { width: 56px; height: 56px; font-size: 1.3rem; }
  .adv-dpad-center { width: 56px; height: 56px; }

  /* Diploma */
  .diploma-preview { padding: 28px 20px; }
  .diploma-preview h1 { font-size: 1.6rem; }
  .diploma-preview .diploma-name { font-size: 1.8rem; }
}

/* ---------- Phone (≤ 600px) ---------- */
@media (max-width: 600px) {
  /* Tabs */
  .tab-btn {
    padding: 8px 14px;
    font-size: 0.82rem;
  }

  /* Top bar */
  .top-bar { padding: 6px 10px; min-height: 44px; }
  .top-bar-right { gap: 6px; }
  .btn-small { font-size: 0.7rem; padding: 4px 8px; }
  .star-badge, .user-badge { font-size: 0.78rem; padding: 3px 8px; }
  .btn-icon { font-size: 0.82rem; padding: 6px 10px; }
  .btn-back { padding: 6px 14px; font-size: 0.85rem; }
  .btn-action { padding: 6px 12px; font-size: 0.8rem; }
  .top-badge { padding: 5px 10px; font-size: 0.8rem; }

  /* Level cards */
  .levels-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
  .level-card { padding: 14px 10px; border-radius: 12px; }
  .level-card .level-number { width: 32px; height: 32px; font-size: 0.85rem; }
  .level-card .level-name { font-size: 0.88rem; }
  .levels-container { padding: 14px; }
  .section-title { font-size: 1.1rem; margin-bottom: 12px; }

  /* Coding game layout */
  .game-layout { gap: 8px; }
  .game-col-left { max-height: none; min-height: 0; }
  .panel-toolbox { max-height: 160px; }
  .panel-title { font-size: 0.9rem; }
  .panel { padding: 10px; }

  /* Typing */
  .typing-layout { padding: 12px; }
  .typing-display { font-size: 1rem; padding: 14px 16px; min-height: 70px; max-height: 140px; letter-spacing: 0; }
  .typing-input { font-size: 1rem; padding: 12px 14px; }
  .stat-box { padding: 8px 12px; min-width: 60px; }
  .stat-value { font-size: 1.1rem; }
  .stat-label { font-size: 0.65rem; }
  .kb-key { width: 26px; height: 26px; font-size: 0.6rem; border-radius: 5px; }
  .kb-key.space { width: 140px; }
  .kb-row { gap: 3px; }

  /* Logic / Thinking */
  .logic-layout { padding: 12px; }
  .logic-main { gap: 14px; }
  .logic-desc { font-size: 0.92rem; }
  .logic-puzzle-area { padding: 16px 14px; border-radius: 12px; }
  .logic-puzzle-area .puzzle-sequence { font-size: 1.3rem; gap: 8px; }
  .logic-puzzle-area .puzzle-item { width: 46px; height: 46px; font-size: 1.2rem; border-radius: 10px; }
  .logic-option { padding: 12px 14px; font-size: 1rem; border-radius: 12px; }
  .puzzle-grid-cell { width: 42px; height: 42px; font-size: 1.1rem; }

  .thinking-instruction { font-size: 0.95rem; padding: 12px 14px; }
  .thinking-scenario { font-size: 1.1rem; padding: 12px 14px; }
  .thinking-code-block { font-size: 0.95rem; padding: 12px 14px; }
  .thinking-sort-item { padding: 10px 14px; font-size: 0.9rem; }
  .thinking-step-btn { padding: 10px 14px; font-size: 0.88rem; }
  .thinking-checkbox-label { padding: 8px 12px; font-size: 0.88rem; }
  .quiz-code-block { font-size: 0.85rem; padding: 12px 14px; }
  .logic-option-btn { padding: 10px 14px; font-size: 0.92rem; }
  .logic-desc { font-size: 0.9rem; padding: 12px 14px; }
  .adv-dpad-container { padding: 10px; }
  .stat-box { border-width: 2px; }

  /* Memory */
  .memory-board { gap: 6px; padding: 14px; max-width: 100%; border-radius: 14px; border-width: 2px; }
  .memory-card-inner { border-radius: 10px; }
  .memory-card-front, .memory-card-back { border-radius: 10px; }
  .memory-card-content { font-size: 0.9rem; }
  .memory-card-back.emoji .memory-card-content { font-size: 1.6rem; }
  .memory-card-icon { font-size: 1.4rem; }
  .memory-levels-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)) !important; }
  .adventure-levels-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)) !important; }
  .thinking-levels-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)) !important; }
  .tab-hero { padding: 18px 14px; margin-bottom: 16px; border-radius: 14px; }
  .tab-hero-icon { font-size: 2rem; }
  .tab-hero-title { font-size: 1.1rem; }
  .tab-hero-desc { font-size: 0.82rem; }
  .mlc-preview { font-size: 1.5rem; letter-spacing: 3px; min-height: 44px; padding: 6px 0; }
  .alc-icon-area { min-height: 70px; padding: 14px 12px 10px; }
  .alc-icon { font-size: 2.2rem; }
  .tlc-top { padding: 12px; }
  .tlc-icon { font-size: 1.6rem; }

  /* Adventure */
  .adventure-game-area { gap: 8px; }
  .adv-stats-bar { padding: 6px 10px; gap: 8px; font-size: 0.85rem; border-radius: 10px; }
  .adv-stat { font-size: 0.85rem; }
  .adv-grid { border-radius: 8px; border-width: 2px; }
  .adv-grid-row { gap: 10px; }
  .adv-dpad-btn { width: 52px; height: 52px; font-size: 1.2rem; border-radius: 12px; }
  .adv-dpad-center { width: 52px; height: 52px; }
  .adv-overlay-card { padding: 24px 20px; border-radius: 16px; }
  .adv-overlay-emoji { font-size: 2.2rem; }
  .adv-overlay-card h2 { font-size: 1.2rem; }

  /* Modals */
  .modal-card { padding: 24px 18px; border-radius: 16px; max-width: 92%; }
  .modal-card h2 { font-size: 1.3rem; }
  .modal-buttons { flex-direction: column; gap: 8px; }
  .modal-buttons .btn { width: 100%; }

  /* Diploma */
  .diploma-preview { padding: 20px 14px; border-radius: 12px; }
  .diploma-preview h1 { font-size: 1.3rem; }
  .diploma-preview h2 { font-size: 1.1rem; }
  .diploma-preview .diploma-name { font-size: 1.5rem; }
  .diploma-preview .diploma-stats { gap: 16px; }
  .diploma-preview .diploma-stat-value { font-size: 1.3rem; }

  /* Login card */
  .login-card { padding: 28px 20px; }
  .login-card h1 { font-size: 1.4rem; }
  .login-card .subtitle { font-size: 0.88rem; }

  /* Car game */
  .car-game-layout { padding: 8px; }
}

/* ---------- Small phone (≤ 400px) ---------- */
@media (max-width: 400px) {
  .tab-btn { padding: 6px 10px; font-size: 0.75rem; }
  .levels-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 8px; }
  .level-card { padding: 10px 8px; }
  .level-card .level-number { width: 28px; height: 28px; font-size: 0.75rem; }
  .level-card .level-name { font-size: 0.8rem; }

  .typing-display { font-size: 0.9rem; }
  .keyboard-visual { display: none; }

  .adv-dpad-btn { width: 46px; height: 46px; font-size: 1rem; }
  .adv-dpad-center { width: 46px; height: 46px; }

  .memory-board { gap: 4px; padding: 6px; }
  .memory-card-back.emoji .memory-card-content { font-size: 1.3rem; }
  .memory-card-content { font-size: 0.75rem; }
  .memory-card-icon { font-size: 1.1rem; }
  .memory-levels-grid,
  .adventure-levels-grid,
  .thinking-levels-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)) !important; }
  .tab-hero { padding: 14px 10px; margin-bottom: 12px; }
  .tab-hero-icon { font-size: 1.6rem; }
  .tab-hero-title { font-size: 1rem; }
  .mlc-preview { font-size: 1.2rem; letter-spacing: 2px; min-height: 36px; }

  .logic-option { padding: 10px 12px; font-size: 0.9rem; }
  .logic-option-btn { padding: 8px 10px; font-size: 0.85rem; }
  .puzzle-grid-cell { width: 34px; height: 34px; font-size: 0.9rem; }

  .thinking-sortable { max-width: 100%; }
  .adv-dpad-container { padding: 6px; border-width: 2px; }
  .logic-desc { padding: 10px 12px; font-size: 0.85rem; }
}

/* ============ CROSSWORD ============ */
.crossword-top-bar {
  background: linear-gradient(135deg, #F39C12, #FDCB6E);
  box-shadow: 0 4px 20px rgba(243, 156, 18, 0.35);
}
.crossword-game-bg .logic-puzzle-area {
  border-color: #FFE082;
}

/* Description card */
.crossword-desc {
  text-align: center;
  color: var(--dark);
  font-size: 1.15rem;
  line-height: 1.7;
  font-weight: 700;
  background: var(--white);
  padding: 20px 28px;
  border-radius: 18px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  width: 100%;
  border-left: 5px solid #F39C12;
}

/* Clues inside puzzle area */
.crossword-clues {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
  width: 100%;
}
.crossword-clue {
  font-size: 1rem;
  padding: 12px 16px;
  background: linear-gradient(135deg, #FFFDE7, #FFF9C4);
  border-radius: 12px;
  border-left: 4px solid #F39C12;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  transition: transform 0.15s, box-shadow 0.15s;
}
.crossword-clue:hover {
  transform: translateX(4px);
  box-shadow: 0 3px 10px rgba(243,156,18,0.15);
}
.crossword-clue strong {
  color: #E67E22;
  margin-right: 4px;
}
.crossword-clue small {
  color: #999;
  font-weight: 600;
}

/* Board */
.crossword-board {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 100%;
}
.cw-row {
  display: flex;
  align-items: center;
  gap: 4px;
}
.cw-row-num {
  width: 30px;
  text-align: right;
  font-weight: 800;
  font-size: 0.9rem;
  color: #E67E22;
  flex-shrink: 0;
}
.cw-spacer {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}
.cw-cell {
  width: 44px;
  height: 44px;
  border: 3px solid #E8E4F8;
  border-radius: 10px;
  text-align: center;
  font-size: 1.15rem;
  font-weight: 800;
  font-family: 'Nunito', sans-serif;
  text-transform: uppercase;
  background: var(--white);
  outline: none;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s, transform 0.15s;
  flex-shrink: 0;
  color: var(--dark);
}
.cw-cell:focus {
  border-color: #F39C12;
  box-shadow: 0 0 0 3px rgba(243,156,18,0.2);
  transform: scale(1.08);
}
.cw-cell.cw-secret {
  background: linear-gradient(135deg, #FFFDE7, #FFF9C4);
  border-color: #F39C12;
  box-shadow: 0 2px 8px rgba(243,156,18,0.15);
}
.cw-cell.cw-secret:focus {
  background: linear-gradient(135deg, #FFF9C4, #FFE082);
  border-color: #E67E22;
  box-shadow: 0 0 0 3px rgba(230,126,34,0.25);
}
.cw-cell.correct {
  background: linear-gradient(135deg, #00B894, #55EFC4);
  border-color: var(--green);
  color: var(--white);
  animation: correctBounce 0.5s ease;
}
.cw-cell.wrong {
  background: var(--red);
  border-color: var(--red);
  color: var(--white);
}

/* Secret word display bar */
.cw-secret-display {
  margin-top: 8px;
  padding: 14px 24px;
  background: linear-gradient(135deg, #F39C12, #FDCB6E);
  border-radius: 16px;
  text-align: center;
  color: var(--white);
  font-weight: 800;
  font-size: 1.15rem;
  box-shadow: 0 4px 16px rgba(243,156,18,0.3);
  border: 3px solid rgba(255,255,255,0.3);
}
.cw-secret-label {
  opacity: 0.85;
  margin-right: 8px;
  font-size: 1rem;
}
.cw-secret-letters {
  letter-spacing: 6px;
  font-size: 1.4rem;
  text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

/* Feedback */
.crossword-feedback {
  text-align: center;
  font-weight: 700;
  font-size: 1.1rem;
  min-height: 30px;
  padding: 12px 16px;
  border-radius: 14px;
  transition: all 0.3s ease;
}
.crossword-feedback.success { color: var(--green); background: #E6FFED; border: 2px solid #55EFC4; }
.crossword-feedback.error { color: var(--red-dark); background: #FFEAEA; border: 2px solid #FAB1A0; }

@media (max-width: 500px) {
  .cw-cell, .cw-spacer { width: 36px; height: 36px; }
  .cw-cell { font-size: 1rem; border-radius: 8px; border-width: 2px; }
  .cw-row-num { width: 24px; font-size: 0.8rem; }
  .cw-row { gap: 3px; }
  .cw-secret-display { padding: 10px 16px; font-size: 1rem; border-radius: 12px; }
  .cw-secret-letters { font-size: 1.15rem; letter-spacing: 4px; }
  .crossword-clue { padding: 10px 12px; font-size: 0.9rem; }
  .crossword-desc { padding: 16px 20px; font-size: 1rem; }
}

/* ============ SUDOKU ============ */
#screen-sudoku { flex-direction: column; }
.sudoku-top-bar {
  background: linear-gradient(135deg, #6C5CE7, #A29BFE);
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.35);
}
.sudoku-game-bg {
  background: linear-gradient(135deg, #F8F7FF 0%, #E8E4F8 100%);
}
.sudoku-hero {
  background: linear-gradient(135deg, #6C5CE7 0%, #A29BFE 100%);
}
.sudoku-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 24px;
}
.sudoku-board {
  display: grid;
  gap: 3px;
  justify-content: center;
  padding: 16px;
  background: var(--white);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(108, 92, 231, 0.15);
  border: 3px solid #E8E4F8;
  max-width: 420px;
  width: 100%;
}
.sudoku-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border: 2px solid #E8E4F8;
  border-radius: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  font-family: 'Nunito', sans-serif;
  color: var(--dark);
  background: var(--white);
  transition: all 0.2s ease;
}
.sudoku-cell.sudoku-given {
  background: linear-gradient(135deg, #EDE7F6, #D1C4E9);
  color: #4A148C;
  font-size: 1.6rem;
  border-color: #B39DDB;
}
.sudoku-cell.sudoku-border-top {
  border-top: 3px solid #6C5CE7;
}
.sudoku-cell.sudoku-border-left {
  border-left: 3px solid #6C5CE7;
}
.sudoku-input {
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 800;
  font-family: 'Nunito', sans-serif;
  color: #6C5CE7;
  outline: none;
  caret-color: #6C5CE7;
}
.sudoku-input:focus {
  background: rgba(108, 92, 231, 0.08);
  border-radius: 8px;
}
.sudoku-input.sudoku-error {
  color: var(--red);
  background: rgba(255, 107, 107, 0.12);
}
.sudoku-input.sudoku-correct {
  color: var(--green);
  background: rgba(0, 184, 148, 0.12);
}
.sudoku-feedback {
  text-align: center;
  font-weight: 700;
  font-size: 1.1rem;
  min-height: 30px;
  padding: 12px 20px;
  border-radius: 14px;
  transition: all 0.3s ease;
  max-width: 420px;
  width: 100%;
}
.sudoku-feedback-warn {
  color: #E67E22;
  background: #FFF8E1;
  border: 2px solid #FDCB6E;
}
.sudoku-feedback-error {
  color: var(--red-dark, #D63031);
  background: #FFEAEA;
  border: 2px solid #FAB1A0;
}
.sudoku-feedback-hint {
  color: #6C5CE7;
  background: #F3F0FF;
  border: 2px solid #A29BFE;
}

/* Sudoku size adjustments */
.sudoku-size-4 { max-width: 280px; }
.sudoku-size-4 .sudoku-cell { width: 56px; height: 56px; }
.sudoku-size-6 { max-width: 380px; }
.sudoku-size-6 .sudoku-cell { width: 52px; height: 52px; }
.sudoku-size-6 .sudoku-cell .sudoku-input { font-size: 1.3rem; }
.sudoku-size-6 .sudoku-given { font-size: 1.4rem; }

@media (max-width: 500px) {
  .sudoku-size-4 .sudoku-cell { width: 48px; height: 48px; }
  .sudoku-size-6 .sudoku-cell { width: 42px; height: 42px; }
  .sudoku-size-6 .sudoku-cell .sudoku-input { font-size: 1.1rem; }
  .sudoku-main { padding: 16px; }
  .sudoku-board { padding: 12px; }
}