* {
  box-sizing: border-box;
  font-family: Cairo, sans-serif;
}

body {
  direction: rtl;
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  width: 100%;
  max-width: 900px;
  padding: 20px;
}

.card {
  background: #fff;
  border-radius: 24px;
  padding: 30px;
  box-shadow: 0 20px 40px rgba(0,0,0,.1);
}

/* ---------- Header ---------- */
.header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 25px;
}

.header img {
  width: 70px;
  height: 70px;
  object-fit: contain;
}

.header h1 {
  margin: 0;
  font-size: 26px;
}

/* ---------- Form ---------- */
form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

form input {
  padding: 14px;
  border-radius: 12px;
  border: 1px solid #ddd;
  font-size: 16px;
}

form button {
  grid-column: span 2;
  padding: 15px;
  font-size: 18px;
  background: #4f46e5;
  color: white;
  border: none;
  border-radius: 14px;
  cursor: pointer;
}

form button:hover {
  background: #4338ca;
}

/* ---------- Result Ticket ---------- */
.ticket {
  margin-top: 25px;
  padding: 20px;
  border-radius: 20px;
  border: 2px dashed #4f46e5;
  text-align: center;
}

.id-box {
  font-size: 26px;
  font-weight: bold;
  color: #4f46e5;
  margin: 10px 0;
}

.hidden {
  display: none;
}

/* ---------- Scan Page ---------- */
.scan-btn {
  width: 100%;
  padding: 16px;
  font-size: 18px;
  border-radius: 14px;
  background: #16a34a;
  color: white;
  border: none;
  cursor: pointer;
}

.scan-btn:hover {
  background: #15803d;
}

/* ===============================
   📱 Mobile Fixes
================================ */

@media (max-width: 768px) {

  body {
    align-items: flex-start;
    padding: 20px 0;
  }

  .container {
    padding: 12px;
  }

  .card {
    padding: 20px;
    border-radius: 18px;
  }

  /* ---------- Header ---------- */
  .header {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }

  .header img {
    width: 60px;
    height: 60px;
  }

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

  /* ---------- Form ---------- */
  form {
    grid-template-columns: 1fr; /* عمود واحد */
  }

  form input {
    font-size: 15px;
    padding: 13px;
  }

  form button {
    grid-column: span 1;
    font-size: 16px;
    padding: 14px;
  }

  /* ---------- Ticket ---------- */
  .ticket {
    padding: 16px;
  }

  .id-box {
    font-size: 22px;
  }

  canvas {
    max-width: 100%;
    height: auto;
  }

  /* ---------- Scan Page ---------- */
  .scan-btn {
    font-size: 16px;
    padding: 14px;
  }

  #reader {
    width: 100%;
    border-radius: 14px;
    overflow: hidden;
  }
}

/* 📱 موبايلات صغيرة جدًا */
@media (max-width: 480px) {

  .card {
    padding: 16px;
  }

  .header h1 {
    font-size: 20px;
  }

  .id-box {
    font-size: 20px;
  }
}
.center-alert {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.center-alert.hidden {
  display: none;
}

.alert-box {
  background: #fff;
  padding: 25px;
  border-radius: 12px;
  text-align: center;
  width: 90%;
  max-width: 350px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.alert-box p {
  font-size: 18px;
  margin-bottom: 20px;
}

.alert-box button {
  background: #111;
  color: #fff;
  border: none;
  padding: 10px 25px;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
}