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

body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f4f4f4;
}

.container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar Styles */
.sidebar {
  width: 250px;
  background-color: #2c3e50;
  color: white;
  padding: 20px;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
}

.logo h1 {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.logo p {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-bottom: 30px;
}

nav ul {
  list-style: none;
}

nav ul li {
  margin-bottom: 15px;
}

nav ul li a {
  color: white;
  text-decoration: none;
  display: block;
  padding: 10px;
  border-radius: 5px;
  transition: background-color 0.3s;
}

nav ul li a:hover {
  background-color: #34495e;
}

nav ul li a.active {
  background-color: #3498db;
}

/* Main Content Styles */
.main-content {
  margin-left: 250px;
  padding: 20px;
  flex: 1;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  padding: 20px;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.search-bar {
  display: flex;
  gap: 10px;
}

.search-bar input {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
  width: 300px;
}

.search-bar button {
  padding: 10px 20px;
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

.current-date {
  font-size: 0.9rem;
  color: #666;
}

/* Feature Grid Styles */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}

.feature-card {
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-card h3 {
  margin-bottom: 10px;
  color: #2c3e50;
}

.feature-card p {
  margin-bottom: 15px;
  color: #666;
}

.btn {
  display: inline-block;
  background-color: #3498db;
  color: white;
  padding: 10px 15px;
  border-radius: 5px;
  text-decoration: none;
  transition: background-color 0.3s;
}

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

/* Tool Page Styles */
.tool-container {
  background-color: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  max-width: 800px;
  margin: 0 auto;
}

.timezone-controls {
  display: flex;
  gap: 15px;
  margin-bottom: 30px;
  flex-wrap: wrap;
  align-items: center;
}

.timezone-clock {
  background-color: #f8f9fa;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 15px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timezone-clock:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.timezone-clock h3 {
  margin-bottom: 10px;
  color: #2c3e50;
  font-size: 1.2rem;
}

.time-display {
  font-size: 2rem;
  font-weight: bold;
  color: #3498db;
  margin-bottom: 5px;
  font-family: 'Courier New', monospace;
}

.date-display {
  font-size: 0.9rem;
  color: #666;
}

.delete-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: #e74c3c;
  color: white;
  border: none;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  font-size: 16px;
  line-height: 28px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  opacity: 0.7;
}

.delete-btn:hover {
  background-color: #c0392b;
  opacity: 1;
  transform: scale(1.1);
}

.delete-btn:active {
  transform: scale(0.95);
}

#addTimezone {
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 5px;
  padding: 12px 24px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(52, 152, 219, 0.2);
}

#addTimezone:hover {
  background-color: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(52, 152, 219, 0.3);
}

#addTimezone:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(52, 152, 219, 0.2);
}

#timezoneSelect {
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 5px;
  background-color: white;
  font-size: 1rem;
  width: 250px;
  transition: all 0.3s ease;
  appearance: none;
  background-image: url('data:image/svg+xml;charset=US-ASCII,<svg xmlns="http://www.w3.org/2000/svg" width="292.4" height="292.4"><path fill="%23007CB2" d="M287 69.4a17.6 17.6 0 0 0-13-5.4H18.4c-5 0-9.3 1.8-12.9 5.4A17.6 17.6 0 0 0 0 82.2c0 5 1.8 9.3 5.4 12.9l128 127.9c3.6 3.6 7.8 5.4 12.8 5.4s9.2-1.8 12.8-5.4L287 95c3.5-3.5 5.4-7.8 5.4-12.8 0-5-1.9-9.2-5.5-12.8z"/></svg>');
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 12px;
}

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

.tool-container h2 {
  margin-bottom: 20px;
  color: #2c3e50;
}

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

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}

.output-group {
  margin-top: 20px;
  padding: 15px;
  background-color: #f8f9fa;
  border-radius: 5px;
}

.output-group p {
  font-size: 1.2rem;
  color: #2c3e50;
}

.action-buttons {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.action-buttons button {
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s;
}

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

.action-buttons .btn-secondary {
  background-color: #e74c3c;
  color: white;
}

.action-buttons .btn-tertiary {
  background-color: #95a5a6;
  color: white;
}

/* Stopwatch Styles */
.stopwatch-display {
  font-size: 3rem;
  text-align: center;
  margin: 30px 0;
  font-family: 'Courier New', monospace;
}

/* Footer Styles */
.footer {
  margin-top: 50px;
  text-align: center;
  padding: 20px;
  color: #666;
}

/* Mobile Navigation Styles */
.mobile-menu-btn {
  display: none;
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1001;
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 5px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.menu-icon {
  display: inline-block;
  width: 24px;
  height: 2px;
  background-color: white;
  position: relative;
}

.menu-icon::before,
.menu-icon::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: white;
  left: 0;
}

.menu-icon::before {
  top: -6px;
}

.menu-icon::after {
  top: 6px;
}

.mobile-nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.mobile-nav-content {
  background-color: #2c3e50;
  color: white;
  width: 80%;
  max-width: 300px;
  border-radius: 8px;
  padding: 20px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.close-menu-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

.header .logo {
  display: none;
}

/* Responsive Styles */
@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }

  .sidebar {
    display: none;
  }
  .header .logo {
    display: block;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .main-content {
    margin-left: 0;
  }

  .header {
    flex-direction: column;
    gap: 15px;
  }

  .search-bar input {
    width: 200px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }
  .timezone-controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  #timezoneSelect {
    width: 100%;
  }
}