/* Admin Layout - Enhanced */
.admin {
  display: grid;
  grid-template-columns: 275px 1fr;
  height: 100vh;
  background: #f8fafc;
}

.admin .sidebar {
  position: relative;
  height: 100vh;
  overflow-y: auto;
  background: #ffffff;
  scrollbar-width: thin;
  scrollbar-color: var(--primary-color) transparent;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
  border-right: 1px solid #e5e7eb;
}

.admin .sidebar::-webkit-scrollbar {
  width: 6px;
}

.admin .sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.admin .sidebar::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 0;
}

.admin .sidebar nav {
  padding: 32px 24px;
}

.admin .sidebar nav h3 {
  color: var(--primary-color);
  margin-bottom: 20px;
  font-size: 1.125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.admin .sidebar-logo {
  max-width: 160px;
  margin-bottom: 32px;
  transition: var(--transition-base);
}

.admin .sidebar-logo:hover {
  transform: scale(1.05);
}

.admin .sidebar nav p {
  color: var(--gray-color);
  font-size: 14px;
  margin-bottom: 16px;
}

.admin .sidebar nav ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.admin .sidebar nav ul a {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  margin-bottom: 4px;
  transition: var(--transition-base);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-left: 3px solid transparent;
  border-radius: 0;
  color: var(--gray-color);
  position: relative;
  overflow: hidden;
}

.admin .sidebar nav ul a::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(33, 49, 88, 0.05),
    transparent
  );
  transition: left 0.5s;
}

.admin .sidebar nav ul a:hover::before {
  left: 100%;
}

.admin .sidebar nav ul a:hover {
  border-left-color: var(--primary-color);
  background-color: var(--primary-lighter-color);
  color: var(--primary-color);
  transform: translateX(4px);
}

.admin .sidebar nav ul a.active {
  border-left-color: var(--primary-color);
  background-color: var(--primary-lighter-color);
  color: var(--primary-color);
  font-weight: 600;
}

.admin .sidebar nav ul a img {
  width: 20px;
  height: 20px;
  margin-right: 12px;
  transition: var(--transition-base);
  opacity: 0.7;
}

.admin .sidebar nav ul a:hover img,
.admin .sidebar nav ul a.active img {
  opacity: 1;
  transform: scale(1.1);
}

.admin .sidebar nav ul a.logout-button {
  background: var(--danger-color);
  color: #ffffff;
  padding: 12px 16px;
  border-radius: var(--border-radius);
  text-decoration: none;
  margin-left: 0;
  margin-top: 20px;
  border: 2px solid var(--danger-color);
  font-weight: 600;
  box-shadow: var(--box-shadow);
}

.admin .sidebar nav ul a.logout-button::before {
  display: none;
}

.admin .sidebar nav ul a.logout-button:hover {
  color: var(--danger-color);
  background: transparent;
  transform: translateX(0);
  box-shadow: var(--box-shadow-hover);
}

.admin .sidebar nav ul a.logout-button img {
  filter: brightness(0) invert(1);
}

.admin .sidebar nav ul a.logout-button:hover img {
  filter: none;
}

.admin .content {
  padding: 32px;
  height: 100vh;
  overflow-y: auto;
  background: #f8fafc;
}

.admin .content .top-header {
  margin-bottom: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px;
  background: #ffffff;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  border: 1px solid #e5e7eb;
}

.admin .content .top-header h1 {
  color: var(--primary-color);
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
}

.admin .content .top-header h1 a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-colors);
}

.admin .content .top-header h1 a:hover {
  color: var(--primary-darker-color);
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
  .admin {
    grid-template-columns: 250px 1fr;
  }
}

@media (max-width: 768px) {
  .admin {
    grid-template-columns: 1fr;
    position: relative;
  }

  .admin .sidebar {
    position: fixed;
    top: 0;
    left: -275px;
    width: 275px;
    z-index: 1000;
    transition: left 0.3s ease;
  }

  .admin.sidebar-open .sidebar {
    left: 0;
  }

  .admin .content {
    padding: 20px;
  }

  .admin .content .top-header {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .admin .sidebar {
    width: 100vw;
    left: -100vw;
  }

  .admin.sidebar-open .sidebar {
    left: 0;
  }

  .admin .content {
    padding: 16px;
  }

  .admin .content .top-header {
    padding: 16px;
  }

  .admin .content .top-header h1 {
    font-size: 1.5rem;
  }
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1001;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  padding: 12px;
  cursor: pointer;
  box-shadow: var(--box-shadow);
  transition: var(--transition-base);
}

.mobile-menu-toggle:hover {
  background: var(--primary-darker-color);
  box-shadow: var(--box-shadow-hover);
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
}

/* Overlay for mobile sidebar */
.admin-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  backdrop-filter: blur(2px);
}

@media (max-width: 768px) {
  .admin.sidebar-open .admin-overlay {
    display: block;
  }
}