/* Import common tools styles */
@import "../common.css";

/* Card Styles */
.card {
  background: white;
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  margin-bottom: 40px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

/* Tabs */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  background-color: #f8fafc;
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  padding: 18px;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  color: #64748b;
  position: relative;
  overflow: hidden;
}

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

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

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50%;
  height: 3px;
  background-color: var(--primary-color);
  border-radius: 3px 3px 0 0;
}

/* Tab Content */
.tab-content {
  display: none;
  padding: 25px;
}

.tab-content.active {
  display: block;
}

/* Form Elements */
.input-group,
.result-group {
  margin-bottom: 24px;
}

.input-group label,
.result-group label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  color: #4a5568;
  font-size: 1rem;
}

.input-group textarea,
.result-group textarea {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  min-height: 120px;
  max-height: 300px;
  transition: all 0.2s ease;
  box-sizing: border-box;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
}

.input-group textarea:focus,
.result-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(84, 104, 255, 0.15);
}

.result-group textarea[readonly] {
  background-color: var(--secondary-color);
  cursor: default;
  border-color: #e2e8f0;
}

/* Controls */
.controls {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 22px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.2px;
}

.btn.primary {
  background-color: var(--primary-color);
  color: white;
  box-shadow: 0 2px 5px rgba(84, 104, 255, 0.3);
}

.btn.primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(84, 104, 255, 0.4);
}

.btn.secondary {
  background-color: var(--secondary-color);
  color: var(--primary-color);
  border: 1px solid rgba(84, 104, 255, 0.2);
}

.btn.secondary:hover {
  background-color: #e6eaff;
  transform: translateY(-2px);
}

/* Info Card */
.info-card {
  padding: 30px;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
}

.info-card h2 {
  margin-top: 0;
  color: #2d3748;
  font-size: 1.6rem;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 10px;
  margin-bottom: 20px;
}

code {
  background-color: var(--secondary-color);
  padding: 3px 8px;
  border-radius: 6px;
  font-family: 'Courier New', monospace;
  font-size: 0.95rem;
  color: var(--primary-color);
  border: 1px solid rgba(84, 104, 255, 0.2);
}

.encoding-examples {
  margin-top: 30px;
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.encoding-examples h3 {
  font-size: 1.2rem;
  margin-bottom: 15px;
  color: #2d3748;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
  text-align: left;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  overflow: hidden;
}

table th, table td {
  padding: 12px 18px;
  border-bottom: 1px solid #e2e8f0;
}

table th {
  background-color: var(--secondary-color);
  font-weight: 600;
  color: #4a5568;
}

table tr:last-child td {
  border-bottom: none;
}

table tr:hover td {
  background-color: #f8fafc;
}

/* Footer Styles */
.site-footer {
  background-color: var(--dark-bg);
  color: #e2e8f0;
  padding: 30px 0;
  text-align: center;
  margin-top: auto;
}

.site-footer p {
  margin: 5px 0;
  font-size: 0.9rem;
}

.footer-links {
  margin-top: 15px;
}

.footer-links a {
  color: #a0aec0;
  text-decoration: none;
  transition: color 0.2s ease;
  margin: 0 5px;
}

.footer-links a:hover {
  color: #cbd5e0;
  text-decoration: underline;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--success-color);
  color: white;
  padding: 14px 24px;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  font-weight: 500;
  z-index: 1000;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Responsive Styles */
@media (max-width: 768px) {
  .site-header h1 {
    font-size: 2.2rem;
  }

  .tagline {
    font-size: 1rem;
  }

  .back-link {
    margin-top: 15px;
  }

  .controls {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .tab-btn {
    padding: 14px;
    font-size: 0.95rem;
  }

  .tab-content {
    padding: 20px;
  }

  .info-card {
    padding: 20px;
  }

  .encoding-examples {
    padding: 15px;
  }

  table th, table td {
    padding: 10px 15px;
  }
}

@media (max-width: 480px) {
  .site-header h1 {
    font-size: 1.8rem;
  }

  .info-card h2 {
    font-size: 1.4rem;
  }

  .encoding-examples h3 {
    font-size: 1.1rem;
  }
}