* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Nunito', sans-serif;
  background: radial-gradient(farthest-side at center, #e0f2fe, #38bdf8, #0284c7) 
              center / 141% 141% no-repeat fixed;
  transform-style: flat; 
  background-size: 141% 141%; 
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  background: white;
  padding: 2rem;
  border-radius: 16px;
  width: 440px;
  border: 1px solid #e0e0e0;
}

h1 {
  font-size: 20px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 4px;
}

.subtitle {
  font-size: 13px;
  color: #888;
  margin-bottom: 1.5rem;
}

label {
  font-size: 13px;
  font-weight: 600;
  color: #444;
  display: block;
  margin-bottom: 6px;
}

input[type="date"] {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid #ddd;
  border-radius: 8px;
  font-size: 15px;
  margin-bottom: 1rem;
  font-family: 'Nunito', sans-serif;
}

input[type="date"]:focus {
  border-color: #4f46e5;
  outline: none;
}

button {
  width: 100%;
  padding: 12px;
  background: #4f46e5;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Nunito', sans-serif;
}

button:hover {
  background: #3730a3;
}

.result-box {
  margin-top: 1.5rem;
  background: #f8f9ff;
  border: 1.5px solid #e0e7ff;
  border-radius: 12px;
  padding: 1.2rem;
}

hr {
  border: none;
  border-top: 1px solid #e8e8f0;
  margin: 12px 0;
}

.small {
  font-size: 12px;
  color: #888;
  margin-bottom: 2px;
}

.bold {
  font-size: 16px;
  font-weight: 700;
  color: #1a1a1a;
}

.big {
  font-size: 22px;
  font-weight: 800;
  color: #4f46e5;
  margin: 4px 0 6px;
}

.note {
  font-size: 11px;
  color: #aaa;
  margin-top: 4px;
}

.tag {
  display: inline-block;
  color: #1e1b4b;       
  font-size: 13px;
  font-weight: 700;
  margin-top: 8px;     
}



footer {
  position: fixed;
  bottom: 12px;
  right: 16px;
  font-size: 8px;
  letter-spacing: 0.3px;
  color: white;
  z-index: 10;
}

footer:hover {
  color: rgba(255, 255, 255, 0.5); 
}


@media (max-width: 480px) {
  .container {
    width: 90%;
    padding: 1.5rem;
  }

  h1 {
    font-size: 17px;
  }

  .big {
    font-size: 18px;
  }

  .quote blockquote {
    font-size: 8px;
  }
}