* {
  margin: 0;
  padding: 0;
}

body {
  background-color: #f1f2f3;
}

.container {
  box-sizing: border-box;
  width: 100%;
  max-width: 1560px;
  min-width: 1240px;
  margin: 20px auto;
  color: #333;
}

.container * {
  box-sizing: border-box;
}

header {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 25px;
}

header h1 {
  font-size: 2.2rem;
  margin-bottom: 10px;
}

header p {
  font-size: 1rem;
  opacity: 0.9;
}

.tool-description {
  background-color: #fff;
  padding: 15px;
  border-radius: 5px;
  margin-bottom: 25px;
  border-left: 4px solid #3498db;
  line-height: 1.75;
}

.controls {
  display: flex;
  gap: 20px;
  margin-bottom: 25px;
}

button {
  padding: 12px 36px;
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #2980b9;
}

button.secondary {
  background-color: #95a5a6;
}

button.secondary:hover {
  background-color: #7f8c8d;
}

.results {
  margin-bottom: 25px;
}

.summary {
  font-weight: bold;
  font-size: 18px;
  color: #27ae60;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
}

th,
td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

th {
  font-weight: bold;
}

.status-available {
  color: #27ae60;
}

.footer {
  text-align: center;
  color: #7f8c8d;
  font-size: 14px;
}

.notice {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #2c3e50;
  color: white;
  padding: 15px 25px;
  border-radius: 5px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 1000;
}

.notice.show {
  opacity: 1;
}

.feature-section {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 25px;
}

.feature-card {
  flex: 1;
  min-width: 250px;
  background-color: #fff;
  border-radius: 5px;
  padding: 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  border-top: 3px solid #3498db;
}

.feature-card p{
  margin-top: 15px;
  opacity: 0.8;
}

.feature-card h3 {
  font-size: 18px;
  margin-top: 0;
  color: #2c3e50;
}