html, body {
    height: 100%;
}
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
main {
    flex: 1 0 auto;
}
footer {
    flex-shrink: 0;
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    z-index: 1030;
}

/* ==== SIDEBAR STYLES ==== */
.sidebar {
    width: 250px;
    height: 100vh;
    background-color: #2c2f33;
    padding-top: 30px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1040;
    transition: all 0.3s ease;
    color: #fff;
}

.sidebar.collapsed {
    width: 80px;
}
.mb-4.d-flex.align-items-center.justify-content-between {
    padding-right: 38px !important;
}

/* Hide text when collapsed */
.sidebar .link-text {
    transition: opacity 0.3s ease, width 0.3s ease;
    white-space: nowrap;
}
.sidebar.collapsed .link-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
    display: inline-block;
}

/* Nav links */
.sidebar .nav-link {
    color: #ffc107;
    padding: 10px 8px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}
.sidebar .nav-link:hover {
    background-color: #444c56;
    color: #fff;
}
.sidebar .nav-link.active {
    background-color: #ffc107;
    color: #2c2f33;
}
.sidebar .nav-link i {
    min-width: 20px;
    text-align: center;
}

/* Dropdown custom arrow */
.dropdown-toggle::after {
    display: none !important;
}
.dropdown-arrow {
    transition: transform 0.3s ease;
}
.nav-link[aria-expanded="true"] .dropdown-arrow {
    transform: rotate(180deg);
}

/* Hide arrow when collapsed */
.sidebar.collapsed .dropdown-arrow {
    display: none !important;
}

/* Dropdown menu styles */
.sidebar .collapse {
    padding-left: 10px;
}
.sidebar .nav .nav-link {
    font-size: 14px;
    padding-left: 6px;
}
.sidebar .nav .nav-link:hover {
    background-color: #495057;
    color: #ffc107;
}

/* Ensure dropdowns only open on click */
.nav-item.dropdown:hover .dropdown-menu,
.sidebar .nav-item.dropdown:hover .dropdown-menu {
    display: none !important;
}

/* Hamburger Button */
.hamburger-btn {
    background-color: transparent;
    border: none;
    font-size: 22px;
    color: #ffc107;
    cursor: pointer;
}
.hamburger-btn::before {
    content: "\2630"; /* ☰ */
}

/* Main content shift */
.main-content {
    margin-left: 250px;
    padding: 30px 20px 80px 20px;
    transition: margin-left 0.3s ease;
}
.sidebar.collapsed + .main-content {
    margin-left: 80px;
}

/* Dropdown visual polish */
.dropdown-menu {
    background: #343a40;
    border: none;
    margin-top: -8px;
    border-radius: 0 0 10px 10px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.1);
}
.dropdown-item {
    color: #fff;
}
.dropdown-item:hover, .dropdown-item.active {
    background: #495057;
    color: #ffc107;
}