body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #0f7c82, #0a5f63);
  color: white;
}

/* CENTER MAIN APP */
.center-wrap {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* APP BOX */
.app {
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.logo {
  width: 90px;
  margin-bottom: 10px;
}

.sub {
  margin-top: -10px;
  margin-bottom: 15px;
  font-size: 14px;
  opacity: 0.8;
}

/* INPUT CARD */
.card {
  background: white;
  color: black;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

input, textarea {
  width: 90%;
  padding: 12px;
  margin: 8px 0;
  border-radius: 10px;
  border: 1px solid #ccc;
}

textarea {
  height: 80px;
}

button {
  width: 100%;
  padding: 12px;
  background: #0f7c82;
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  cursor: pointer;
  margin-top: 5px;
}

button:hover {
  background: #0a5f63;
}

/* FOOTER */
footer {
  margin-top: 15px;
  font-size: 12px;
  opacity: 0.8;
}

/* RESULT OVERLAY */
.result-page {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
  justify-content: center;
  align-items: center;
  background: rgba(0,0,0,0.7);
}

/* RESULT BOX */
.result-box {
  background: white;
  color: black;
  padding: 20px;
  border-radius: 12px;
  width: 300px;
  text-align: center;
}