/* ===== GLOBAL ===== */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #050505;
  color: #00f2ff;
  font-family: 'Segoe UI', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

/* ===== CONTAINER ===== */
.container {
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

/* ===== HEADER ===== */
h1 {
  text-align: center;
  margin-bottom: 20px;
  font-size: 22px;
  letter-spacing: 2px;
  color: #00f2ff;
}

/* ===== CARD ===== */
.card {
  background: #0d0d0d;
  border: 1px solid #00f2ff;
  padding: 20px;
  border-radius: 14px;
  box-shadow: 0 0 25px rgba(0,242,255,0.3);
}

/* ===== INPUTS ===== */
input, select {
  width: 100%;
  padding: 14px;
  margin-bottom: 14px;
  background: #111;
  border: 1px solid #00f2ff;
  color: #00f2ff;
  border-radius: 8px;
  font-size: 14px;
}

input:focus, select:focus {
  outline: none;
  box-shadow: 0 0 10px #00f2ff;
}

/* ===== BUTTON ===== */
button {
  width: 100%;
  padding: 14px;
  background: #00f2ff;
  color: black;
  border: none;
  border-radius: 8px;
  font-weight: bold;
  font-size: 15px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #00d0dd;
  box-shadow: 0 0 15px #00f2ff;
}

/* ===== QR CARD ===== */
.qr-card {
  margin-top: 20px;
  padding: 15px;
  background: #111;
  border-radius: 12px;
  border: 1px solid #00f2ff;
  text-align: center;
}

.qr-card img {
  width: 100%;
  max-width: 260px;
  margin-top: 10px;
}

/* ===== MOBILE OPTIMIZATION ===== */
@media (max-width: 480px) {
  body {
    align-items: flex-start;
    padding-top: 30px;
  }

  .container {
    padding: 15px;
  }

  h1 {
    font-size: 18px;
  }
}