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

body {
  min-height: 100vh;
  background: radial-gradient(circle at top, #143c65, #06131f 55%, #02070c);
  color: #ffffff;
}

.page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 25px;
}

.card {
  width: 100%;
  max-width: 760px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 26px;
  padding: 30px;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(14px);
}

.logoBox {
  display: flex;
  justify-content: center;
  margin-bottom: 18px;
}

.logo {
  width: 100%;
  max-width: 430px;
  border-radius: 18px;
}

h1 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 8px;
}

.subtitle {
  text-align: center;
  color: #c9e7ff;
  margin-bottom: 28px;
  font-size: 17px;
}

.converter {
  background: rgba(0, 0, 0, 0.25);
  border-radius: 22px;
  padding: 24px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: #e7f5ff;
  font-weight: bold;
}

input, select {
  width: 100%;
  padding: 15px;
  border: none;
  outline: none;
  border-radius: 14px;
  font-size: 16px;
  margin-bottom: 18px;
}

.row {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 14px;
  align-items: end;
}

.swap {
  height: 50px;
  margin-bottom: 18px;
  border: none;
  border-radius: 50%;
  font-size: 25px;
  cursor: pointer;
  color: white;
  background: linear-gradient(135deg, #0066ff, #00c46b);
}

.convertBtn {
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: 16px;
  cursor: pointer;
  font-size: 18px;
  font-weight: bold;
  color: white;
  background: linear-gradient(135deg, #0066ff, #00c46b);
}

.result {
  margin-top: 22px;
  padding: 18px;
  border-radius: 16px;
  text-align: center;
  font-size: 22px;
  font-weight: bold;
  color: #062018;
  background: #dfffee;
}

.info {
  margin-top: 18px;
  padding: 15px;
  color: #d7edff;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  font-size: 14px;
}

.dateInfo{
  margin-top:10px;
  font-size:14px;
  color:#d9f7dd;
  text-align:center;
}