@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap');

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
}

body, html {
  height: 100%;
  background: #000;
  color: #fff;
}

.background {
  position: fixed;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #141414 0%, #1f1f1f 100%);
  z-index: -1;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

.card {
  background: rgba(30,30,30,0.95);
  padding: 50px 40px;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.7);
  max-width: 400px;
  width: 100%;
  text-align: center;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
}

h1 {
  font-size: 2rem;
  color: #ffcc00;
  margin-bottom: 20px;
}

p {
  font-size: 1rem;
  color: #ccc;
  margin-bottom: 25px;
}

/* Champ Nom / Prénom stylé */
.input-group {
  position: relative;
  margin-bottom: 25px;
}

.input-group input {
  width: 100%;
  padding: 15px;
  border-radius: 10px;
  border: none;
  font-size: 1rem;
  outline: none;
  background: #222;
  color: #fff;
}

.input-group label {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: #aaa;
  pointer-events: none;
  transition: 0.3s ease all;
}

.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
  top: -10px;
  left: 10px;
  font-size: 0.8rem;
  color: #ffcc00;
  background: #1e1e1e;
  padding: 0 5px;
  border-radius: 5px;
}

.btn {
  width: 100%;
  padding: 15px;
  border-radius: 10px;
  border: none;
  font-weight: 600;
  font-size: 1rem;
  background: linear-gradient(90deg, #ffcc00, #ffaa00);
  color: #000;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn:hover {
  background: linear-gradient(90deg, #ffaa00, #ffcc00);
  transform: scale(1.05);
}