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

body {
  background-color: #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 {
  text-align: center;
  margin-bottom: 25px;
}

header h1 {
  font-size: 2.2rem;
  margin-bottom: 5px;
}

header  p{
  font-size: 1rem;
  opacity: 0.9;
  max-width: 95%;
  margin: 0 auto;
}

.converter {
  background: white;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  padding: 20px;
  margin-bottom: 25px;
}

.input-area h2,
.output-area h2 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

textarea {
  width: 100%;
  min-height: 200px;
  padding: 20px;
  border: 1px solid #e1e5e9;
  border-radius: 12px;
  font-size: 1.1rem;
  resize: vertical;
  transition: border-color 0.3s;
}

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

.btn-group {
  display: flex;
  gap: 15px;
  margin-bottom: 25px;
  flex-wrap: wrap;
}

.btn {
  padding: 14px 28px;
  border: none;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

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

.btn-primary:hover {
  background: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(52, 152, 219, 0.25);
}

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

.btn-secondary:hover {
  background: #27ae60;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(46, 204, 113, 0.25);
}

.btn-utility {
  background: #9b59b6;
  color: white;
}

.btn-utility:hover {
  background: #8e44ad;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(155, 89, 182, 0.25);
}

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

.btn-warning:hover {
  background: #c0392b;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(231, 76, 60, 0.25);
}

.btn-icon {
  font-size: 1.3rem;
}

.output-area textarea {
  background: #f0f7ff;
  min-height: 200px;
}

.info-section {
  background: white;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  padding: 20px;
  margin-bottom: 25px;
}

.info-section h2 {
  margin-bottom: 20px;
  font-size: 1.4rem;
  color: #2c3e50;
}

.info-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.info-box {
  background: #f9fafb;
  border-radius: 12px;
  padding: 20px;
  border-left: 4px solid #3498db;
}

.info-box h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: #3498db;
  display: flex;
  align-items: center;
  gap: 10px;
}

.info-box ul {
  padding-left: 30px;
}

.info-box li {
  margin-top: 10px;
  line-height: 1.6;
  font-size: 1rem;
}

.info-box li::marker {
  color: #3498db;
  font-weight: bold;
}

.notification {
  position: fixed;
  top: 60px;
  right: 30px;
  padding: 15px 25px;
  background: #2ecc71;
  color: white;
  border-radius: 10px;
  font-weight: 600;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
  transform: translateX(200%);
  transition: transform 0.4s ease;
  z-index: 1000;
}

.notification.show {
  transform: translateX(0);
}

footer {
  text-align: center;
  color: #7f8c8d;
  font-size: 1rem;
}

.stats {
  display: flex;
  justify-content: space-between;
  margin: 25px 0;
  margin-top: 10px;
  color: #7f8c8d;
}

.stat-box {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}