body {
  font-family: 'Segoe UI', sans-serif;
  background: #f5f5f5;
  margin: 0;
}

/* HEADER */
.header {
  background: #ee4d2d;
  color: white;
  padding: 15px;
  text-align: center;
  font-weight: bold;
}

/* CARD */
.container {
  background: white;
  margin: 20px;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
  text-align: center;
}

/* TEXT */
h1 {
  font-size: 20px;
}

p {
  color: #666;
  font-size: 14px;
}

/* BUTTON */
button {
  background: #ee4d2d;
  color: white;
  border: none;
  padding: 15px;
  width: 100%;
  border-radius: 8px;
  font-size: 16px;
  margin-top: 12px;
  cursor: pointer;
  transition: 0.2s;
}

button:hover {
  transform: scale(1.03);
}

button:disabled {
  background: grey;
}

/* PROGRESS */
.progress {
  width: 100%;
  height: 8px;
  background: #eee;
  border-radius: 10px;
  margin: 20px 0;
}

#bar {
  height: 8px;
  width: 0%;
  background: #ee4d2d;
  border-radius: 10px;
}

/* TIMER */
#timer {
  color: red;
  font-weight: bold;
}

/* POPUP */
.popup {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: black;
  color: white;
  padding: 10px 15px;
  border-radius: 10px;
  font-size: 13px;
  z-index: 9999;
}

/* STICKY ADS */
.sticky-ad {
  position: fixed;
  bottom: 0;
  width: 100%;
  background: white;
}