:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #0ea5e9;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(2, 6, 23, 0.06);
  --gap: 16px;
  --container: 1200px;
}

body {
    margin: 0;
    font-family: var(--font-primary);
    color: var(--text);
    background: var(--bg);
    max-width: 100%;
    overflow-x: hidden;
  }

.sidebar {
  height: 100vh;
  width: 280px;
  position: fixed;
  top: 0;
  left: -280px;
  overflow-x: hidden;
  overflow-y: auto;
  transition: left 0.3s ease;
  z-index: 1000;
  background-color: var(--white);
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.sidebar a {
  padding: 1rem 1.5rem;
  display: block;
  text-decoration: none;
  color: var(--text);
  border-bottom: 1px solid var(--gray);
  transition: all 0.2s ease;
  font-size: var(--font-size-md);
}
.sidebar a:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
}
.sidebar.open {
  left: 0;
  
}

.close-btn {
  position: absolute;
  right: 1rem;
  top: 1rem;
  background-color: var(--light-gray);
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-dark);
  transition: all 0.2s ease;
}

.profile-div {
  display: flex;
  align-items: center;
  padding: 1.5rem;
  background-color: var(--primary-color);
  color: white;
  min-height: 80px;
  border-bottom: 1px solid var(--primary-hover);
}

.dropdown-btn {
    display: block;
    border: none;
    background: none;
    width: 100%;
    cursor: pointer;
    outline: none;
    font-size: var(--font-size-md);
    padding: 1rem 1.5rem;
    text-align: left;
    color: var(--text);
    border-bottom: 1px solid var(--gray);
    transition: all 0.2s ease;
  }

  .dropdown-btn:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
  }

.dropdown-container a {
    background-color: var(--secondary-light);
    color: var(--text);
    text-decoration: none;
    padding-left: 2.5rem;
    font-size: var(--font-size-sm);
  }

  .dropdown-container {
    max-height: 0;
    overflow: hidden;
    background-color:inherit;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease-in-out;
    justify-content: flex-start;
  }
  .dropdown-container.show {
    max-height: 300px; /* adjust if you have more items */
    opacity:1;
}

.sidebar.open::-webkit-scrollbar {
  width: 10px;
  border: 10px;

}

.sidebar.open::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 10px;
}

.sidebar.open::-webkit-scrollbar-thumb:hover {
  background: #555;
}

.sidebar.open::-webkit-scrollbar-track {
background: #f0f0f0;
border-radius: 6px;
}

.helpnsettings {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray);
}

.helpnsettings a {
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

/* ===== RESPONSIVE DESIGN FOR SIDEBAR ===== */

/* Large screens - full sidebar width */
@media (min-width: 1200px) {
  .sidebar {
    width: 320px;
    left: -320px;
  }
  
  .sidebar.open {
    left: 0;
  }
}

/* Medium screens - standard sidebar */
@media (max-width: 1199px) and (min-width: 768px) {
  .sidebar {
    width: 280px;
    left: -280px;
  }
  
  .sidebar.open {
    left: 0;
  }
}

/* Mobile screens - full width sidebar with adjustments */
@media (max-width: 767px) {
  .sidebar {
    width: 100%;
    max-width: 320px;
    left: -100%;
    z-index: 1001;
  }
  
  .sidebar.open {
    left: 0;
  }
  
  .profile-div {
    padding: 1rem;
    min-height: 70px;
  }
  
  .close-btn {
    width: 44px;
    height: 44px;
    top: 1rem;
    right: 1rem;
  }
  
  .sidebar a {
    padding: 1rem;
    font-size: var(--font-size-md);
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  
  .dropdown-btn {
    padding: 1rem;
    min-height: 44px;
    font-size: var(--font-size-md);
  }
  
  .dropdown-container a {
    padding: 0.75rem 1rem 0.75rem 2rem;
    min-height: 40px;
  }
  
  .helpnsettings {
    margin-top: 1rem;
    padding-top: 1rem;
  }
  
  .helpnsettings a {
    padding: 0.75rem 1rem;
    min-height: 40px;
  }
}

/* Extra small screens - minimal sidebar */
@media (max-width: 480px) {
  .sidebar {
    width: 100vw;
    left: -100vw;
  }
  
  .profile-div {
    padding: 0.75rem 1rem;
    min-height: 60px;
    font-size: var(--font-size-sm);
  }
  
  .close-btn {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .sidebar a {
    padding: 0.75rem 1rem;
    font-size: var(--font-size-sm);
  }
  
  .dropdown-btn {
    padding: 0.75rem 1rem;
    font-size: var(--font-size-sm);
  }
  
  .dropdown-container a {
    padding: 0.5rem 1rem 0.5rem 1.75rem;
    font-size: var(--font-size-xs);
  }
  
  .helpnsettings a {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
  }
}

/* Touch improvements for mobile devices */
@media (max-width: 768px) {
  .sidebar a,
  .dropdown-btn,
  .close-btn {
    -webkit-tap-highlight-color: transparent;
  }
  
  .sidebar a:active,
  .dropdown-btn:active {
    background-color: var(--primary-light);
    transform: scale(0.98);
  }
  
  .close-btn:active {
    transform: scale(0.95);
    background-color: var(--gray);
  }
}

/* Hover effects only on non-touch devices */
@media (hover: hover) {
  .close-btn:hover {
    background-color: var(--gray);
    transform: scale(1.05);
  }
  
  .dropdown-container a:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
    padding-left: 3rem;
  }
}

/* Animation improvements for smooth interactions */
@media (prefers-reduced-motion: no-preference) {
  .sidebar {
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  .dropdown-container {
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                opacity 0.2s ease;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .sidebar {
    border-right: 2px solid currentColor;
  }
  
  .sidebar a,
  .dropdown-btn {
    border-bottom: 1px solid currentColor;
  }
}