.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: rgba(10, 9, 11, 0.49);
}

main {
  display: flex;
  flex-wrap: nowrap;
  height: 100vh;
  overflow-x: auto;
  overflow-y: hidden;
}

.bi {
  vertical-align: -.125em;
  pointer-events: none;
  fill: currentColor;
}

.dropdown-toggle { outline: 0; }

.nav-link {
  border-radius: 0;
}

.navbar-brand {
  justify-content: center;
}

.navbar-logo {
  width: 60px;
  height: 60px;
}

.navbar-brand-name {
    font-family: "Inter", sans-serif;
    font-weight: 800;
    font-size: 1.3rem;
    letter-spacing: 0.05rem;
}

.nav-link {
  color: var(--owhite);
}

.nav-link:hover {
  color: var(--teal-bg-blue);
  transform: scale(1.03);
}

.btn-toggle {
  display: inline-flex;
  align-items: center;
  padding: .25rem .5rem;
  font-weight: 600;
  color: rgba(0, 0, 0, .65);
  background-color: transparent;
  border: 0;
}
.btn-toggle:hover,
.btn-toggle:focus {
  color: rgba(0, 0, 0, .85);
  background-color: #d2f4ea;
}

.btn-toggle::before {
  width: 1.25em;
  line-height: 0;
  content: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='rgba%280,0,0,.5%29' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M5 14l6-6-6-6'/%3e%3c/svg%3e");
  transition: transform .35s ease;
  transform-origin: .5em 50%;
}

.btn-toggle[aria-expanded="true"] {
  color: rgba(0, 0, 0, .85);
}
.btn-toggle[aria-expanded="true"]::before {
  transform: rotate(90deg);
}

.btn-toggle-nav a {
  display: inline-flex;
  padding: .1875rem .5rem;
  margin-top: .125rem;
  margin-left: 1.25rem;
  text-decoration: none;
}
.btn-toggle-nav a:hover,
.btn-toggle-nav a:focus {
  background-color: #d2f4ea;
}

.sign-in-link {
  color: var(--owhite);
}

.sign-in-link:hover {
  color: var(--blue);
}

/* Burger menu button styles */
.sidebar-burger-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1050;
  background-color: rgba(10, 9, 11, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--owhite);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 1.2rem;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.sidebar-burger-btn:hover {
  background-color: var(--teal-bg-blue);
  color: white;
  transform: scale(1.05);
}

.sidebar-burger-btn:focus {
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Hide burger menu when offcanvas is open (JavaScript-controlled) */
.sidebar-burger-btn.hide-burger {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
  pointer-events: none;
}

/* Offcanvas sidebar styles */
.sidebar-offcanvas {
  background: rgba(10, 9, 11, 0.95);
  color: var(--owhite);
  backdrop-filter: blur(10px);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-offcanvas .offcanvas-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.5rem;
}

.sidebar-offcanvas .offcanvas-body {
  padding: 1rem 1.5rem;
}

.sidebar-offcanvas .navbar-brand {
  text-decoration: none;
  color: var(--owhite);
}

.sidebar-offcanvas .navbar-brand:hover {
  color: var(--owhite);
}

.sidebar-offcanvas .btn-close-white {
  filter: brightness(0) saturate(100%) invert(100%) sepia(0%) saturate(7500%) hue-rotate(13deg) brightness(104%) contrast(106%);
}

.sidebar-offcanvas .nav-link {
  color: var(--owhite);
  margin-bottom: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.sidebar-offcanvas .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--teal-bg-blue);
  transform: translateX(5px);
}

.sidebar-offcanvas .nav-link.active {
  background-color: var(--teal-bg-blue);
  color: white;
}

/* Responsive adjustments */
@media (max-width: 991px) {
  .main-container {
    padding-left: 0;
    margin-left: 0;
  }

  main {
    padding-left: 0;
  }
}

@media (min-width: 992px) {
  .sidebar-burger-btn {
    display: none !important;
  }
}