:root {
  --primary-color: #3b82f6;
  --secondary-color: #1e293b;
  --bg-light: #0f172a;
  --bg-card: #1a2332;
  --text-light: #cbd5e1;
  --text-primary: #fff;
  --border-color: #334155;
  --success-color: #10b981;
  --error-color: #ef4444;
}

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

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, var(--bg-light) 0%, #1a2332 100%);
  color: var(--text-light);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}

.header {
  text-align: center;
  margin-bottom: 40px;
  padding: 30px 20px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(59, 130, 246, 0.05) 100%);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.header h1 {
  font-size: 2.5rem;
  color: var(--text-primary);
  margin-bottom: 10px;
  font-weight: 700;
}

.subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-top: 10px;
}

.tool-wrapper {
  display: grid;
  gap: 20px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  backdrop-filter: blur(10px);
}

.card h2 {
  color: var(--text-primary);
  margin-bottom: 20px;
  font-size: 1.5rem;
}

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

.input-group label {
  display: block;
  color: var(--text-primary);
  margin-bottom: 8px;
  font-weight: 500;
}

.input-group textarea,
.input-group input,
.input-group select {
  width: 100%;
  padding: 12px;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-light);
  font-size: 1rem;
  font-family: 'Courier New', monospace;
  transition: all 0.3s ease;
}

.input-group textarea:focus,
.input-group input:focus,
.input-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(59, 130, 246, 0.05);
}

.input-group textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-primary,
.btn-secondary {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-right: 10px;
  margin-top: 10px;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background: #2563eb;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--border-color);
  color: var(--text-light);
}

.btn-secondary:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.btn-copy {
  padding: 8px 16px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
  margin-left: 10px;
}

.btn-copy:hover {
  background: #2563eb;
  transform: translateY(-2px);
}

.results-card {
  display: none;
}

.result-output-group {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.result-output {
  flex: 1;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  color: var(--success-color);
  font-family: 'Courier New', monospace;
  word-break: break-all;
  min-height: 50px;
  display: flex;
  align-items: center;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 15px;
  margin-top: 20px;
}

.result-info {
  background: var(--bg-light);
  padding: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.info-label {
  display: block;
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 5px;
}

.info-value {
  display: block;
  color: var(--primary-color);
  font-size: 1.2rem;
  font-weight: 600;
}

.info-card {
  background: rgba(59, 130, 246, 0.05);
  border-color: var(--border-color);
}

.info-card h3 {
  color: var(--primary-color);
  margin: 15px 0 8px 0;
  font-size: 1rem;
}

.info-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.6;
}

.info-content {
  color: var(--text-light);
}

@media (max-width: 768px) {
  .header h1 {
    font-size: 1.8rem;
  }

  .card {
    padding: 20px;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    margin-right: 0;
    margin-bottom: 10px;
  }

  .result-output-group {
    flex-direction: column;
  }

  .btn-copy {
    width: 100%;
    margin-left: 0;
  }
}