/* ==========================================================================
   SAMIDOKU - Design System & Modern Stylesheet
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;600;700&display=swap');

:root {
  /* Palette de couleurs Nuit Profonde */
  --bg-main: #090d16;
  --bg-card: rgba(18, 24, 38, 0.85);
  --bg-card-hover: rgba(26, 34, 52, 0.95);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);

  /* Accents */
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.35);
  --accent-purple: #8b5cf6;
  --accent-cyan: #38bdf8;
  --danger: #ef4444;
  --success: #10b981;

  /* Typographie */
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --font-ui: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Couleurs de la grille Sudoku */
  --grid-bg: #0f172a;
  --cell-bg: #141e33;
  --cell-hover: #1e2942;
  --cell-border: rgba(255, 255, 255, 0.06);
  --block-border: rgba(99, 102, 241, 0.4);

  /* Surbrillances interactives */
  --highlight-selected: rgba(99, 102, 241, 0.35);
  --highlight-related: rgba(99, 102, 241, 0.09);
  --highlight-same-num: rgba(139, 92, 246, 0.28);
  --highlight-conflict: rgba(239, 68, 68, 0.25);

  /* Chiffres */
  --given-color: #ffffff;
  --user-color: #38bdf8;
  --pencil-color: #5f666f;
  --conflict-color: #f87171;

  /* Dimensions */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-subtle);
  --shadow-glow: 0 0 25px var(--primary-glow);
}

/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-ui);
  background: var(--bg-main);
  background-image:
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(139, 92, 246, 0.10) 0%, transparent 40%);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 16px;
  overflow-x: hidden;
  user-select: none;
}

/* Conteneur principal */
.app-container {
  width: 100%;
  max-width: 540px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 0 auto;
}

/* Gestion des Écrans (SPA) */
.screen {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  animation: fadeIn 0.3s ease;
}

.screen.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Page d'Accueil - Hero */
.home-hero {
  text-align: center;
  padding: 24px 16px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.home-logo {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  margin-bottom: 8px;
}

.home-logo-img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-md);
  object-fit: cover;
  box-shadow: 0 8px 25px var(--primary-glow);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.home-logo-img:hover {
  transform: scale(1.06) rotate(2deg);
}

.home-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.home-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 320px;
}

/* Carte de reprise de partie en cours */
.resume-card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.1));
  border: 1px solid var(--border-focus);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  box-shadow: var(--shadow-card), 0 0 20px rgba(99, 102, 241, 0.2);
  transition: all 0.2s ease;
}

.resume-card:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(139, 92, 246, 0.18));
  transform: translateY(-2px);
}

.resume-info-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.resume-info-meta {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.resume-btn {
  background: var(--primary);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 4px 12px var(--primary-glow);
}

/* Grille des Difficultés (Cartes) */
.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 8px 0 4px 4px;
}

.difficulty-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.diff-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.diff-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--card-accent, var(--primary));
  opacity: 0.8;
  transition: width 0.2s ease;
}

.diff-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--card-accent, var(--primary));
  transform: translateY(-3px);
  box-shadow: var(--shadow-card), 0 8px 25px rgba(0, 0, 0, 0.4);
}

.diff-card:hover::before {
  width: 8px;
}

.diff-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.diff-card-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
}

.diff-card-badge {
  font-size: 1.25rem;
}

.diff-card-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.4;
  min-height: 34px;
}

.diff-card-record {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 8px;
}

/* Couleurs spécifiques par difficulté */
.diff-card.diff-simple {
  --card-accent: #10b981;
}

.diff-card.diff-easy {
  --card-accent: #38bdf8;
}

.diff-card.diff-intermediate {
  --card-accent: #f59e0b;
}

.diff-card.diff-hard {
  --card-accent: #f97316;
}

.diff-card.diff-expert {
  --card-accent: #f43f5e;
}

.difficulty-badge.simple .difficulty-dot {
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
}

.difficulty-badge.easy .difficulty-dot {
  background: #38bdf8;
  box-shadow: 0 0 10px #38bdf8;
}

.difficulty-badge.intermediate .difficulty-dot {
  background: #f59e0b;
  box-shadow: 0 0 10px #f59e0b;
}

.difficulty-badge.hard .difficulty-dot {
  background: #f97316;
  box-shadow: 0 0 10px #f97316;
}

.difficulty-badge.expert .difficulty-dot {
  background: #f43f5e;
  box-shadow: 0 0 10px #f43f5e;
}

/* En-tête / Header de la partie */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
}

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

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.btn-icon {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.btn-icon:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--border-focus);
}

/* Barre de statut (Difficulté, Timer, etc.) */
.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  box-shadow: var(--shadow-card);
}

.difficulty-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.difficulty-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.difficulty-badge.expert .difficulty-dot {
  background: #f43f5e;
  box-shadow: 0 0 10px #f43f5e;
}

.timer-box {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
}

.btn-pause {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  display: grid;
  place-items: center;
  padding: 4px;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.btn-pause:hover {
  color: var(--text-main);
}

/* La Grille Sudoku */
.sudoku-board-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 100%;
  /* Ratio 1:1 parfait */
  background: var(--grid-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), 0 0 30px rgba(0, 0, 0, 0.4);
  border: 2px solid var(--block-border);
  overflow: hidden;
}

.sudoku-board {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  grid-template-rows: repeat(9, 1fr);
}

/* Cellule */
.cell {
  position: relative;
  display: grid;
  place-items: center;
  background: var(--cell-bg);
  border-right: 1px solid var(--cell-border);
  border-bottom: 1px solid var(--cell-border);
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.1s ease;
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 4.5vw, 1.9rem);
  font-weight: 600;
}

/* Bordures renforcées pour les blocs 3x3 */
.cell:nth-child(3n) {
  border-right: 2px solid var(--block-border);
}

.cell:nth-child(9n) {
  border-right: none;
}

.cell:nth-child(n+19):nth-child(-n+27),
.cell:nth-child(n+46):nth-child(-n+54) {
  border-bottom: 2px solid var(--block-border);
}

.cell:nth-child(n+73):nth-child(-n+81) {
  border-bottom: none;
}

/* États des cellules */
.cell.given {
  color: var(--given-color);
  font-weight: 700;
}

.cell.user-value {
  color: var(--user-color);
  font-weight: 600;
}

.cell.highlight-related {
  background-color: var(--highlight-related);
}

.cell.highlight-same-num {
  background-color: var(--highlight-same-num);
}

.cell.selected {
  background-color: var(--highlight-selected) !important;
  box-shadow: inset 0 0 0 2px var(--primary);
  z-index: 2;
}

.cell.conflict {
  background-color: var(--highlight-conflict) !important;
  color: var(--conflict-color) !important;
  animation: shake 0.3s ease;
}

/* Mode Crayon (Grille 3x3 de notes dans la cellule) */
.pencil-grid {
  position: absolute;
  top: 2px;
  left: 2px;
  right: 2px;
  bottom: 2px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  pointer-events: none;
}

.pencil-num {
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: clamp(0.55rem, 1.8vw, 0.75rem);
  font-weight: 600;
  color: var(--pencil-color);
  line-height: 1;
}

.pencil-num.highlight-candidate {
  color: #b5bbc2;
  font-weight: 800;
  text-shadow: 0 0 6px var(--primary);
}

/* Barre d'outils d'actions */
.action-toolbar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.tool-btn {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-card);
}

.tool-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--border-focus);
}

.tool-btn:active {
  transform: scale(0.96);
}

.tool-btn .tool-icon {
  font-size: 1.25rem;
}

.tool-btn .tool-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tool-btn.compact {
  padding: 10px 0;
  height: 44px;
}

.tool-btn.compact .tool-icon {
  font-size: 1.35rem;
}

/* État actif pour le mode Crayon */
.tool-btn.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(139, 92, 246, 0.25));
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 0 15px var(--primary-glow);
}

.tool-btn.active .tool-icon {
  color: var(--accent-cyan);
}

/* État actif pour le mode Chiffre d'abord (pinceau) */
.tool-btn.paint-mode-active {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.25), rgba(99, 102, 241, 0.25));
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.35);
}

/* Pavé numérique */
.keypad {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 10px 8px;
  box-shadow: var(--shadow-card);
}

.key-btn {
  position: relative;
  aspect-ratio: 1 / 1.35;
  background: var(--cell-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.key-btn:hover {
  background: var(--cell-hover);
  border-color: var(--border-focus);
  transform: translateY(-2px);
}

.key-btn:active {
  transform: scale(0.92);
}

.key-num {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 3.8vw, 1.55rem);
  font-weight: 700;
}

.key-count {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-dim);
}

/* Quand un chiffre a été placé 9 fois (terminé) */
.key-btn.completed {
  opacity: 0.25;
  pointer-events: none;
  background: transparent;
  border-color: transparent;
}

/* Modale de victoire & Dialogue */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(4, 7, 14, 0.85);
  backdrop-filter: blur(10px);
  display: grid;
  place-items: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), var(--shadow-glow);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.modal-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.modal-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.stat-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.stat-val {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 14px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

/* Écran de pause */
.pause-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.96);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.pause-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* Animation douce d'erreur */
@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  25% {
    transform: translateX(-4px);
  }

  75% {
    transform: translateX(4px);
  }
}

/* ==========================================================================
   Styles des Paramètres & Toggles
   ========================================================================== */
.settings-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 10px;
}

.setting-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.setting-item:last-child {
  border-bottom: none;
}

.setting-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.setting-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-main);
}

.setting-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.35;
}

/* Interrupteur iOS / Dark modern toggle */
.toggle-switch {
  appearance: none;
  -webkit-appearance: none;
  width: 44px;
  height: 24px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  position: relative;
  outline: none;
  cursor: pointer;
  flex-shrink: 0;
  transition: background-color 0.25s ease;
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.toggle-switch:checked {
  background: var(--primary);
}

.toggle-switch:checked::after {
  transform: translateX(20px);
}

/* Mode "Chiffre d'abord" (Pinceau actif sur le pavé numérique) */
.key-btn.active-paint {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.4), rgba(56, 189, 248, 0.4)) !important;
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.5);
  transform: translateY(-3px);
}

.key-btn.active-paint .key-num {
  color: var(--accent-cyan);
}

/* Surbrillance de la case d'indice */
.cell.hint-highlight {
  background-color: rgba(16, 185, 129, 0.35) !important;
  box-shadow: inset 0 0 0 2px var(--success), 0 0 15px rgba(16, 185, 129, 0.5) !important;
  animation: pulseHint 1.5s infinite alternate;
}

@keyframes pulseHint {
  from {
    transform: scale(1);
  }

  to {
    transform: scale(0.97);
  }
}

/* =============================================================================
   MODULE D'AUTHENTIFICATION & PROFILS
============================================================================= */
.auth-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  max-width: 420px;
  margin: 40px auto 20px;
  text-align: center;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.4s ease;
}

.auth-tabs {
  display: flex;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 4px;
  margin: 20px 0;
  gap: 4px;
}

.auth-tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 10px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.auth-tab-btn.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 10px var(--primary-glow);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-group input {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: var(--text-main);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.auth-error-msg {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
}

.auth-submit-btn {
  margin-top: 8px;
  width: 100%;
  padding: 14px;
  font-size: 1rem;
}

/* =============================================================================
   BARRE UTILISATEUR (HUB D'ACCUEIL)
============================================================================= */
.user-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: #fff;
  font-size: 0.95rem;
}

.user-badge .user-icon {
  font-size: 1.1rem;
}

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

.user-action-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  color: var(--text-main);
  padding: 6px 12px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.user-action-btn:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.15);
}

.user-action-btn.btn-logout {
  color: var(--text-muted);
  padding: 6px 10px;
}

.user-action-btn.btn-logout:hover {
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.4);
}

/* =============================================================================
   ÉCRAN STATISTIQUES & HISTORIQUE
============================================================================= */
.stats-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.back-btn {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.back-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
  color: #fff;
  transform: translateX(-3px);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.stats-hero-card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.15));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  margin-bottom: 24px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.stats-big-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stats-big-num {
  font-size: 3rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(to right, #ffffff, #a5b4fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stats-big-label {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stats-diff-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
}

.diff-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 10px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.diff-stat-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: capitalize;
}

.diff-stat-record {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
}

.diff-stat-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.recent-games-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.recent-game-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.recent-game-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.recent-game-diff {
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: capitalize;
}

.recent-game-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.recent-game-time {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent-cyan);
}