:root {
  --bg-1: #040611; /* fond spatial profond */
  --bg-2: #0a0f22;
  --accent-1: #00c6ff; /* cyan lumineux */
  --accent-2: #0072ff; /* bleu spatial */
  --accent-glow: rgba(0,198,255,0.7);
  --text: #e8f1ff;
  --muted: #99aac8;
  --surface: rgba(255,255,255,0.03);
  --radius: 14px;
  --font-sans: "Inter", "Segoe UI", Roboto, sans-serif;
  --font-display: "Orbitron", "Rajdhani", "Audiowide", sans-serif;
  --shadow-soft: 0 0 14px rgba(0,198,255,0.25);
  --shadow-strong: 0 0 28px rgba(0,198,255,0.45);
  --background: radial-gradient(circle at 20% 20%, rgba(0,198,255,0.06), transparent 40%),
              radial-gradient(circle at 80% 80%, rgba(123,97,255,0.04), transparent 45%),
              linear-gradient(180deg, var(--bg-1), var(--bg-2));
}

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

/* ==== MODIFICATION : CENTRAGE DU LIEN ==== */
html, body {
  height: 100%;
  background: radial-gradient(circle at 20% 20%, rgba(0,198,255,0.06), transparent 40%),
              radial-gradient(circle at 80% 80%, rgba(123,97,255,0.04), transparent 45%),
              linear-gradient(180deg, var(--bg-1), var(--bg-2));
  color: var(--text);
  font-family: var(--font-sans);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;

  /* ==== CENTRAGE DU CONTENU PRINCIPAL ==== */
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

/* étoiles */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: url("https://www.transparenttextures.com/patterns/stardust.png");
  opacity: 1;
  pointer-events: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text);
  margin: 30px;
}

h1 {
  font-size: clamp(6rem, 12vw, 9rem);
  color: var(--accent-1);
  text-align: center;
  text-shadow:
    0 0 5px var(--accent-1),
    0 0 10px var(--accent-1),
    0 0 20px var(--accent-1),
    0 0 40px rgba(0,198,255,0.6);
  animation: neonPulse 1s ease-in-out infinite alternate;
}

h2 {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  color: var(--accent-2);
  text-shadow: var(--shadow-soft);
  margin-bottom: 0.4em;
  text-align: center;
}

h3 {
  font-size: 1.3rem;
  color: var(--text);
  margin-bottom: 0.4em;
}

h4 {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 0.4em;
}

p {
  font-size: 1.25rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 0.5rem;
  margin: 25px;
  text-align: center;
}

/* ==== STYLE DU LIEN CENTRÉ ==== */
a {
  text-decoration: none;
  font-size: 1.2rem;
  color: var(--accent-1);
  padding: 12px 24px;
  border-radius: var(--radius);
  background: rgba(0,198,255,0.1);
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
}

a:hover {
  filter: brightness(0.85);
  box-shadow: var(--shadow-strong);
}

@keyframes neonPulse {
  0% {
    text-shadow:
      0 0 5px var(--accent-1),
      0 0 10px var(--accent-1),
      0 0 20px var(--accent-1),
      0 0 40px rgba(0,198,255,0.6);
    opacity: 0.8;
  }
  100% {
    text-shadow:
      0 0 2px var(--accent-1),
      0 0 6px var(--accent-1),
      0 0 12px rgba(0,198,255,0.4),
      0 0 30px rgba(0,198,255,0.3);
    opacity: 0.7;
  }
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,15,34,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,198,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 8%;
  box-shadow: 0 0 25px rgba(0,198,255,0.15);
}

header h1 {
  font-size: 1.6rem;
  color: var(--accent-1);
}

nav a {
  color: black;
  text-decoration: none;
}

nav a:hover {
  color: red;
  text-decoration: underline;
}

section {
  padding: 5rem 10%;
  position: relative;
}

.hero {
  text-align: center;
  background: radial-gradient(circle at center, rgba(0,198,255,0.08), transparent 70%);
  padding: 8rem 10%;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 1rem auto 2rem;
}

.panel {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.panel:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-strong);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  color: #000;
  font-weight: 700;
  letter-spacing: 1px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-soft);
}

.btn:hover {
  transform: translateY(-3px);
  filter: brightness(1.1);
  box-shadow: var(--shadow-strong);
}

.btn.secondary {
  background: transparent;
  color: var(--accent-1);
  border: 1px solid var(--accent-1);
}

.btn.secondary:hover {
  background: rgba(0,198,255,0.08);
}

img {
  max-width: 100%;
  border-radius: var(--radius);
  transition: transform 0.4s ease, filter 0.4s ease;
}

img:hover {
  transform: scale(1.03);
  filter: brightness(1.05);
}

footer {
  background: rgba(10,15,34,0.85);
  text-align: center;
  padding: 3rem 10%;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid rgba(255,255,255,0.05);
}

@keyframes glowPulse {
  0%, 100% { box-shadow: var(--shadow-soft); }
  50% { box-shadow: var(--shadow-strong); }
}
.pulse {
  animation: glowPulse 2.5s infinite ease-in-out;
}

@media (max-width: 768px) {
  header { flex-direction: column; gap: 1rem; }
  section { padding: 3rem 6%; }
  .grid { gap: 1.2rem; }
}

/* ===== TABLEAU DES CHEFS D'ÉQUIPE ===== */
.team {
  text-align: center;
  padding: 4rem 5%;
}

.team h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--accent-1);
  text-shadow: var(--shadow-soft);
  margin-bottom: 3rem;
}

.team-table {
  display: grid;
  gap: 1rem;
}

.team-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.team-row .cell {
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius);
  padding: 0.5rem;
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-row .cell img {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s ease, filter 0.3s ease;
}

.team-row .cell:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-strong);
}

.team-row .cell img:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
}

/* ===== CARTES DES ENTREPRENEURS ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2rem;
  justify-items: center;
  align-items: center;
}

.card {
  perspective: 1000px;
  width: 180px;
  height: 260px;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s;
  transform-style: preserve-3d;
  cursor: pointer;
}

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

.card-front, .card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  background: rgba(255,255,255,0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.card-front img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-soft);
}

.card-back {
  transform: rotateY(180deg);
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.4;
  padding: 1rem;
}

.card-back p {
  font-size: 0.8rem !important;
  line-height: 1.4;
  color: var(--muted);
  text-align: center;
  padding: 0.5rem;
}

/* ==== SCROLLBAR SPATIALE ==== */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--bg-2);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-1), var(--accent-2));
  border-radius: 10px;
  box-shadow: 0 0 10px var(--accent-glow);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent-2), var(--accent-1));
  box-shadow: 0 0 20px var(--accent-glow);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--accent-1) var(--bg-2);
}

.game-info .card-inner {
  transform: none;
  cursor: default;
}



/* ==== GRILLE DES EXPLICATIONS DU JEU ==== */
.game-info {
  text-align: center;
  padding: 4rem 2%;
}

.game-info h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--accent-1);
  text-shadow: var(--shadow-soft);
  margin-bottom: 2rem;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(4, 300px); /* 4 colonnes fixes */
  gap: 5rem;
  justify-items: center;
  align-items: start;
  max-width: 900px;
  margin: 0 auto;
  margin-right: 50px;
  margin-left: 0;
}

.game-grid .card {
  width: 100%;
  max-width: 1000px;
  height: 600px; /* carré */
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.game-grid .card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-strong);
}

.game-grid .card h3 {
  color: var(--accent-1);
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.game-grid .card p {
  font-size: 1rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.5;
}

/* --- Responsive : 1 colonne sur petit écran --- */
@media (max-width: 768px) {
  .game-grid {
    grid-template-columns: 1fr;
  }
}

/* ==== CENTRAGE GLOBAL DE LA GRILLE .game-grid ==== */
.game-info {
  padding: 4rem 0;          /* retire le padding latéral qui décale */
  width: 100%;
  box-sizing: border-box;
}

.game-grid {
  max-width: 1400px;        /* largeur totale de la grille */
  width: calc(100% - 2rem); /* évite de coller aux bords */
  margin: 0 auto;           /* centre horizontalement */
  display: grid;
  grid-template-columns: repeat(4, 1fr); /* 4 colonnes sur une ligne */
  gap: 2.5rem;              /* espace entre les colonnes */
  justify-items: center;
  align-items: start;
}