* {
  margin: 0;
  padding: 0;
}

body {
  background: #f1f2f3;
}

.container {
  box-sizing: border-box;
  width: 100%;
  max-width: 1560px;
  min-width: 1240px;
  margin: 25px auto;
  color: #333;
}

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

header {
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
}

header h1 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 10px;
}

header p {
  font-size: 16px;
  color: #7f8c8d;
  max-width: 95%;
  margin: 0 auto;
}


.tool-container {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 20px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  padding: 20px;
  margin-bottom: 25px;
}

.options-panel {
  border-right: 1px solid #eee;
  padding-right: 20px;
}

.section-title {
  font-size: 1.2rem;
  margin-bottom: 15px;
  color: #2c3e50;
  display: flex;
  align-items: center;
  gap: 10px;
}

.options-group {
  margin-bottom: 20px;
}

.option-item {
  margin: 15px 0;
  display: flex;
  align-items: center;
}

.option-item input {
  margin-right: 12px;
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.option-item label {
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}

.input-area textarea {
  width: 100%;
  height: 360px;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
  color: #555;
  resize: vertical;
}

.input-area textarea:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.button-group {
  display: flex;
  flex-direction: column;
  gap: 15px;
  flex-wrap: wrap;
}

.btn {
  flex: 1;
  padding: 14px;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: #e1e2e3;
}

.btn-primary {
  background: #3498db;
  color: white;
}

.btn-primary:hover {
  background: #2980b9;
}

.btn-secondary {
  background: #2ecc71;
  color: white;
}

.btn-secondary:hover {
  background: #27ae60;
}

.btn-warning {
  background: #e74c3c;
  color: white;
}

.btn-warning:hover {
  background: #c0392b;
}

.result-area {
  margin-top: 20px;
}

.result-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 15px;
}
.result-title h2{
  font-size: 1.2rem;
}
.result-box {
  background: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 15px;
  font-size: 15px;
  min-height: 300px;
  max-height: 600px;
  overflow-y: auto;
  font-family: monospace;
  white-space: pre-wrap;
}

.result-item {
  padding: 8px 10px;
  margin-bottom: 8px;
  background: #eef7ff;
  border-radius: 4px;
  border-left: 4px solid #3498db;
  display: flex;
  align-items: center;
  gap: 10px;
}

.result-item img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.notice {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 15px 30px;
  border-radius: 50px;
  font-size: 1.1rem;
  z-index: 1000;
  display: none;
  animation: fadeInOut 3s ease;
}

@keyframes fadeInOut {

  0%,
  100% {
    opacity: 0;
    bottom: 10px;
  }

  10%,
  90% {
    opacity: 1;
    bottom: 30px;
  }
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-bottom: 25px;
}

.feature-card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

.feature-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
  color: #2c3e50;
}

.feature-card p {
  color: #7f8c8d;
  line-height: 1.7;
}

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

#base-url {
  flex: 1;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 15px;
  height: 40px;
  margin-right: 0;
}

#base-url:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}