/* ── Variables de couleurs ── */
:root {
  /* Arrière-plans */
  --color-bg-page: oklch(0.208 0.04 265.755);
  --color-bg-panel: oklch(0.279 0.037 260.031);
  --color-bg-input: oklch(0.551 0.023 264.364);
  --color-bg-card-front: oklch(0.372 0.039 257.287);
  --color-bg-card-back: oklch(1 0 89.876);

  /* Bordures */
  --color-border-input: oklch(0.551 0.023 264.364);
  --color-border-input-focus: oklch(0.872 0.009 258.338);
  --color-border-card: oklch(0.446 0.037 257.281);

  /* Textes */
  --color-text-title: oklch(0.696 0.149 162.48);
  --color-text-heading: oklch(0.929 0.013 255.508);
  --color-text-label: oklch(0.869 0.02 252.894);
  --color-text-input: oklch(0.869 0.02 252.894);
  --color-text-white: oklch(1 0 89.876);
  --color-text-gray: oklch(0.5 0.01 260);

  /* Bouton principal (démarrer) */
  --color-btn-primary: oklch(0.508 0.105 165.612);
  --color-btn-primary-hover: oklch(0.596 0.127 163.225);

  /* Bouton danger (abandonner) */
  --color-btn-danger: oklch(0.577 0.215 27.325);
  --color-btn-danger-hover: oklch(0.505 0.19 27.518);

  /* Chronomètre */
  --color-timer: oklch(0.773 0.153 163.223);
}

/* ── Reset & base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 100vh;
  background-color: var(--color-bg-page);
  padding: 1rem;
  font-family: sans-serif;
}

/* ── Header ── */
header h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-text-title);
  text-align: center;
}

/* ── Setup form panel ── */
.setup-form {
  margin-top: 1.5rem;
  padding: 2rem;
  background-color: var(--color-bg-panel);
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  width: 100%;
  max-width: 56rem;
}

.setup-form h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-text-heading);
}

/* ── Form ── */
.game-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.game-form label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-label);
  margin-bottom: 0.25rem;
}

.game-form input,
.game-form select {
  display: block;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border-input);
  border-radius: 0.375rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  color: var(--color-text-input);
  background-color: var(--color-bg-input);
  font-size: 0.875rem;
  outline: none;
}

.game-form input:focus,
.game-form select:focus {
  border-color: var(--color-border-input-focus);
  box-shadow: 0 0 0 2px var(--color-border-input);
}

.game-form button[type="submit"] {
  width: 100%;
  display: flex;
  justify-content: center;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.375rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-white);
  background-color: var(--color-btn-primary);
  cursor: pointer;
  outline: none;
}

.game-form .checkbox-container {
  display: flex;
  width: auto;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
}

.game-form input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 1.25rem;
  height: 1.25rem;
  padding: 0;
  margin: 0;
  border: 2px solid var(--color-border-input);
  border-radius: 0.375rem;
  background-color: var(--color-bg-input);
  cursor: pointer;
  outline: none;
  transition: all 0.2s ease;
  flex-shrink: 0;
  vertical-align: middle;
}

.game-form input[type="checkbox"]:hover {
  border-color: var(--color-border-input-focus);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.1);
}

.game-form input[type="checkbox"]:checked {
  background-color: var(--color-btn-primary-hover);
  border-color: var(--color-btn-primary-hover);
}

.game-form input[type="checkbox"]:checked::after {
  content: 'X';
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-white);
  font-weight: bold;
  font-size: 0.875rem;
}

.game-form input[type="checkbox"]:focus {
  border-color: var(--color-border-input-focus);
  box-shadow: 0 0 0 2px var(--color-border-input);
}

.game-form button[type="submit"]:hover {
  background-color: var(--color-btn-primary-hover);
}

/* ── Game area ── */
.game-area {
  width: 100%;
  max-width: 56rem;
  margin-top: 2rem;
}

.game-area-header {
  display: flex;
  align-items: center;
  justify-content: space-around;
  margin-bottom: 1rem;
}

.game-area-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-heading);
}

#abandon {
  padding: 0.5rem 1rem;
  background-color: var(--color-btn-danger);
  color: var(--color-text-white);
  font-weight: 500;
  border: none;
  border-radius: 0.375rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  outline: none;
}

#abandon:hover {
  background-color: var(--color-btn-danger-hover);
}

.game-timer {
  font-size: 1.125rem;
  font-family: monospace;
  color: var(--color-timer);
}

/* ── Game board (CSS Grid) ── */
.game-board {
  display: grid;
  gap: 1rem;
  justify-items: center;
  grid-template-columns: repeat(4, 1fr);

}

.game-board.cols-5 {
  grid-template-columns: repeat(5, 1fr);
}

/* ── Hidden utility ── */
.hidden {
  display: none !important;
}

/* ── Cards ── */
.card {
  perspective: 1000px;
  width: 8rem;
  height: 8rem;
  cursor: pointer;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

@media (min-width: 768px) {
  .card {
    width: 10rem;
    height: 10rem;
  }
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

/* Acclération des animations de retournement pour le mode speedrun*/
.card-inner.speedrun {
  transition: transform 0.12s;
}

.card.flip .card-inner {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 0.5rem;
  overflow: hidden;
}

.card-front {
  background-color: var(--color-bg-card-front);
  border: 2px solid var(--color-border-card);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-back {
  transform: rotateY(180deg);
  background-color: var(--color-bg-card-back);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-front img,
.card-back img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0.5rem;
}

/* ── Win popup ── */
.win-popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.win-content {
  background-color: var(--color-bg-panel);
  color: var(--color-text-label);
  padding: 2rem;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  text-align: center;
  max-width: 30rem;
}

.win-content h2 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 1.5rem;
}

.win-content button {
  width: 100%;
  padding: 0.75rem 1rem;
  margin-top: 1.5rem;
  background-color: var(--color-btn-primary);
  color: var(--color-text-white);
  border: none;
  border-radius: 0.375rem;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.win-content button:hover {
  background-color: var(--color-btn-primary-hover);
}

/* ── Speedrun stats table ── */
.speedrun-stats {
  width: 100%;
  max-width: 56rem;
  margin-top: 1.5rem;
  padding: 1.5rem 2rem;
  background-color: var(--color-bg-panel);
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.speedrun-stats h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 1rem;
}

.speedrun-stats table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.speedrun-stats th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  color: var(--color-text-label);
  border-bottom: 1px solid var(--color-border-input);
  font-weight: 500;
}

.speedrun-stats td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-family: monospace;
  color: var(--color-text-label);
}

.speedrun-stats tr.victory td  {
  color: oklch(0.75 0.15 145);
}
.speedrun-stats tr.defeat td {
  color: oklch(0.7 0.18 25);
}

.speedrun-stats tr:last-child td {
  border-bottom: none;
}

/* ── Footer ── */ /** <-- c'est des ALT+196 allez pas me dire que c'est de l'IA */
footer {
  margin-top: auto;
  padding: 1rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-gray);
}