* {
  margin: 0;
  padding: 0;
}

body {
  background-color: #f1f2f3;
}

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

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

header {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-bottom: 25px;
  width: 100%;
}

header h1 {
  font-size: 2.2rem;
  margin-bottom: 10px;
  position: relative;
  display: inline-block;
}

header p{
  opacity: 0.9;
  font-size: 1.1rem;
}

.tool-container {
  background: white;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  padding: 20px;
  margin-bottom: 25px;
}
.tool-container .tool-box{
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
}


.input-section,
.output-section {
  flex: 1;
}

.section-title {
  font-size: 20px;
  color: #2c3e50;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
}

.section-title span {
  margin-right: 10px;
  font-size: 24px;
}

.options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
  margin-top: 25px;
}

.option-group {
  display: flex;
  flex-direction: column;
}

label {
  font-weight: 500;
  margin-bottom: 8px;
  color: #34495e;
}

select,
input {
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 16px;
  background: white;
  transition: all 0.3s;
}

select:focus,
input:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

textarea {
  width: 100%;
  height: 240px;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 16px;
  line-height: 1.5;
  resize: vertical;
  transition: all 0.3s;
}

textarea:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.output-section textarea{
  height: 345px;
}
.buttons {
  display: flex;
  gap: 15px;
  margin-top: 25px;
  flex-wrap: wrap;
}

.btn {
  padding: 14px 53px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

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

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

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

.btn-light {
  background: #ecf0f1;
  color: #34495e;
}

.btn-light:hover {
  background: #d5dbdb;
}

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

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

.info-section {
  background: white;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  padding: 20px;
  margin-bottom: 25px;
}

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

.info-card {
  background: #f8f9fa;
  border-radius: 10px;
  padding: 15px;
  transition: transform 0.3s;
  border: 1px solid #eee;
}

.info-card h3 {
  font-size: 20px;
  margin-bottom: 15px;
  color: #2c3e50;
  display: flex;
  align-items: center;
  gap: 10px;
}

.info-card p {
  color: #555;
  line-height: 1.6;
}

.info-card ul {
  padding-left: 20px;
  margin-top: 10px;
}

.info-card li {
  margin-top: 8px;
  line-height: 1.5;
}

.faq-section {
  background: white;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  padding: 20px;
  margin-bottom: 25px;
}

.faq-item {
  margin-bottom: 15px;
  border-bottom: 1px solid #eee;
  padding-bottom: 15px;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item h3 {
  font-size: 18px;
  color: #2c3e50;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq-item p {
  color: #555;
  line-height: 1.7;
  margin-left: 35px;
}

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

.notice {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(44, 62, 80, 0.95);
  color: white;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 16px;
  z-index: 1000;
  display: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.notice.show {
  display: block;
  animation: fadeInOut 3s forwards;
}

@keyframes fadeInOut {
  0% {
    opacity: 0;
    bottom: 0;
  }

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

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

  100% {
    opacity: 0;
    bottom: 0;
  }
}