* {
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family: "Inter", Arial;
}

body {
  background:#f5f7fb; /* 💡 fond clair */
  color:#1c1f2a;
}

/* HEADER */
.header {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:15px 25px;
  background:white;
  box-shadow:0 4px 20px rgba(0,0,0,0.05);
  position:sticky;
  top:0;
  z-index:10;
}

.brand {
  display:flex;
  align-items:center;
  gap:12px;
}

.logo {
  width:65px;
  height:65px;
  object-fit:contain;
  animation: float 3s ease-in-out infinite;
}

.brand h1 {
  font-size:22px;
}

.brand span {
  color:#3b82f6;
}

.admin-btn {
  background:#3b82f6;
  color:white;
  border:none;
  padding:10px 15px;
  border-radius:10px;
  cursor:pointer;
  transition:0.3s;
}

.admin-btn:hover {
  transform:scale(1.05);
}

/* HERO */
.hero {
  text-align:center;
  margin-top:10%;
  animation: fadeIn 1s ease;
}

.hero h2 {
  font-size:42px;
}

.hero p {
  opacity:0.6;
  margin-top:10px;
}

.cta {
  margin-top:20px;
  padding:15px 25px;
  border:none;
  border-radius:12px;
  background:#3b82f6;
  color:white;
  font-size:18px;
  cursor:pointer;
  transition:0.3s;
}

.cta:hover {
  transform:scale(1.05);
}

/* SHOP */
#shop {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:20px;
  padding:30px;
}

.card {
  background:white;
  border-radius:18px;
  padding:15px;
  box-shadow:0 10px 30px rgba(0,0,0,0.05);
  transition:0.4s;
  animation: fadeUp 0.6s ease;
}

.card:hover {
  transform:translateY(-10px);
  box-shadow:0 15px 40px rgba(0,0,0,0.1);
}

.card img {
  width:100%;
  border-radius:12px;
}

.buy {
  width:100%;
  margin-top:10px;
  padding:10px;
  border:none;
  border-radius:10px;
  background:#22c55e;
  color:white;
  cursor:pointer;
  transition:0.3s;
}

.buy:hover {
  transform:scale(1.05);
}

/* PANEL CHAT + ADMIN (PRO UI UNIFORME) */
.panel {
  max-width:600px;
  margin:40px auto;
  background:white;
  padding:20px;
  border-radius:18px;
  box-shadow:0 10px 30px rgba(0,0,0,0.08);
  animation: fadeIn 0.5s ease;
}

/* CHAT */
#messages {
  height:300px;
  overflow:auto;
  padding:10px;
  border-radius:12px;
  background:#f1f5ff;
}

.message {
  background:white;
  padding:10px;
  margin:8px 0;
  border-radius:10px;
  box-shadow:0 2px 8px rgba(0,0,0,0.05);
}

.input-box {
  display:flex;
  gap:10px;
  margin-top:10px;
}

input {
  flex:1;
  padding:10px;
  border-radius:10px;
  border:1px solid #e5e7eb;
  outline:none;
}

button {
  border:none;
  padding:10px 15px;
  border-radius:10px;
  cursor:pointer;
}

/* ANIMATIONS */
.hidden { display:none; }

@keyframes fadeIn {
  from {opacity:0;}
  to {opacity:1;}
}

@keyframes fadeUp {
  from {opacity:0; transform:translateY(20px);}
  to {opacity:1; transform:translateY(0);}
}

@keyframes float {
  0%,100% {transform:translateY(0);}
  50% {transform:translateY(-5px);}
}