html {
    font-size: 15px;
    font-family: 'Poppins', sans-serif;
    position: relative;
    min-height: 100%;
}

body {
    margin: 0;
    background: #f5f6fa;
    margin-bottom: 60px;
}

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 82px;
    height: 100vh;
    background: #11101d;
    color: #fff;
    z-index: 999;
    display: flex;
    flex-direction: column;
    transition: width 0.4s cubic-bezier(.55,0,.1,1), left 0.4s cubic-bezier(.55,0,.1,1);
    box-shadow: 2px 0 12px rgba(34,36,38,0.25);
    overflow-x: hidden;
}

    .sidebar.open {
        width: 260px;
    }

.logo-details {
    width: 100%;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: #1d1b31;
}

.sidebar.open .logo-details {
    justify-content: space-between;
    padding: 0 18px;
}

.logo_name {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    display: none;
    opacity: 0;
    transition: opacity 0.3s;
}

.sidebar.open .logo_name {
    display: block;
    opacity: 1;
}

#btn {
    position: absolute;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1000;
}

.sidebar:not(.open) #btn {
    left: 50%;
    transform: translateX(-50%);
}

.sidebar.open #btn {
    right: 18px;
    left: auto;
    transform: none;
}

.nav-list {
    list-style: none;
    margin: 0;
    padding: 24px 0;
    flex-grow: 1;
    width: 100%;
    overflow-y: auto;
    overflow-x: hidden;
}

    .nav-list li {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
    }

.sidebar.open .nav-list li {
    justify-content: flex-start;
}

.nav-list li a {
    display: flex;
    align-items: center;
    gap: 18px;
    width: 48px;
    height: 48px;
    padding: 0;
    margin-bottom: 10px;
    border-radius: 8px;
    color: #fff;
    text-decoration: none;
    font-size: 1.05em;
    transition: background 0.28s, transform 0.28s, width 0.4s;
    justify-content: center;
}

.sidebar.open .nav-list li a {
    width: calc(100% - 36px);
    padding: 12px 18px;
    margin: 0 18px 10px 18px;
    justify-content: flex-start;
}

.nav-list li a:hover {
    background: rgba(37, 140, 251, 0.2);
    transform: translateX(5px);
}

.nav-list li a i {
    font-size: 20px;
    min-width: 20px;
}

.links_name {
    display: none;
    opacity: 0;
    transition: opacity 0.3s;
    white-space: nowrap;
}

.sidebar.open .links_name {
    display: inline;
    opacity: 1;
}

.profile {
    width: 100%;
    background: #1d1b31;
    padding: 15px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: background 0.3s;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: auto;
}

.sidebar.open .profile {
    justify-content: space-between;
    padding: 15px 18px;
}

.profile-details {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar:not(.open) .profile-details {
    flex-direction: column;
    gap: 4px;
}

.profile-details img {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid #258cfb;
}

.name_job {
    display: none;
    flex-direction: column;
    gap: 2px;
}

.sidebar.open .name_job {
    display: flex;
}

.name_job .name {
    font-size: 14px;
    font-weight: 500;
}

.name_job .job {
    font-size: 12px;
    color: #bbb;
}

.logout-link {
    display: flex;
    align-items: center;
    justify-content: center;
}

    .logout-link i {
        font-size: 20px;
        cursor: pointer;
        transition: transform 0.3s;
    }

    .logout-link:hover i {
        transform: scale(1.1);
    }

.sidebar:not(.open) .logout-link {
    display: none;
}

.profile:hover {
    background: #258cfb;
}

.home-section {
    padding: 24px 18px;
    margin-left: 82px;
    transition: margin-left 0.4s cubic-bezier(.55,0,.1,1);
    min-height: calc(100vh - 60px);
}

.sidebar.open ~ .home-section {
    margin-left: 260px;
}

.footer {
    position: fixed;
    bottom: 0;
    width: 100%;
}

/* Overlay for mobile when sidebar is open */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s;
}

    .sidebar-overlay.active {
        display: block;
        opacity: 1;
    }

/* Responsive for mobile/tablet */
@media (max-width: 700px) {
    .sidebar {
        left: -260px;
        width: 260px;
    }

        .sidebar.open {
            left: 0;
            width: 260px;
        }

        /* Always show menu text in mobile */
        .sidebar .logo_name {
            display: block;
            opacity: 1;
        }

        .sidebar .links_name {
            display: inline;
            opacity: 1;
        }

        .sidebar .name_job {
            display: flex;
        }

        .sidebar .logout-link {
            display: flex;
        }

        .sidebar .logo-details {
            justify-content: space-between;
            padding: 0 18px;
        }

        .sidebar #btn {
            right: 18px;
            left: auto;
            transform: none;
        }

        .sidebar .nav-list li {
            justify-content: flex-start;
        }

            .sidebar .nav-list li a {
                width: calc(100% - 36px);
                padding: 12px 18px;
                margin: 0 18px 10px 18px;
                justify-content: flex-start;
            }

        .sidebar .profile {
            justify-content: space-between;
            padding: 15px 18px;
        }

        .sidebar .profile-details {
            flex-direction: row;
            gap: 12px;
        }

    .home-section {
        margin-left: 0;
    }

    .sidebar.open ~ .home-section {
        margin-left: 0;
    }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

/* Custom scrollbar for nav-list */
.nav-list::-webkit-scrollbar {
    width: 6px;
}

.nav-list::-webkit-scrollbar-track {
    background: transparent;
}

.nav-list::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
    border-radius: 10px;
}

    .nav-list::-webkit-scrollbar-thumb:hover {
        background: rgba(255,255,255,0.3);
    }
/* ============================
   DROPDOWN IMPROVEMENTS
   ============================ */

/* Base dropdown container */
.nav-list .dropdown {
    width: 100%;
}

/* Dropdown button - matches nav link style */
.nav-list .dropdown-btn {
    width: 48px;
    height: 48px;
    margin-bottom: 10px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 18px;
    color: #fff;
    text-decoration: none;
    transition: background 0.28s, transform 0.28s, width 0.4s;
    cursor: pointer;
    border: none;
    background: transparent;
    padding: 0;
    justify-content: center;
}

    /* Hover effect for dropdown button */
    .nav-list .dropdown-btn:hover {
        background: rgba(37, 140, 251, 0.2);
        transform: translateX(5px);
    }

/* Expanded sidebar spacing */
.sidebar.open .dropdown-btn {
    width: calc(100% - 36px);
    padding: 12px 18px;
    margin: 0 18px 10px 18px;
    justify-content: flex-start;
}

/* Dropdown button icon */
.dropdown-btn i:first-child {
    font-size: 20px;
    min-width: 20px;
}

/* Dropdown menu container */
.nav-list .dropdown .dropdown-menu {
    display: none;
    background: #0e0d18;
    padding: 5px 0;
    margin: 0 0 10px 0;
    border-left: 3px solid #258cfb;
    list-style: none;
}

/* Show dropdown when open */
.nav-list .dropdown.open .dropdown-menu {
    display: block;
}

/* Dropdown menu items */
.dropdown-menu li {
    width: 100%;
    display: flex;
    justify-content: center;
}

.sidebar.open .dropdown-menu li {
    justify-content: flex-start;
}

/* Dropdown item links */
.dropdown-menu li a {
    padding: 10px 18px !important;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.92em;
    width: calc(100% - 36px);
    color: #bbb;
    border-radius: 6px;
    margin: 3px 18px !important;
    transition: all 0.25s;
    text-decoration: none;
}

    /* Hover effect for dropdown items */
    .dropdown-menu li a:hover {
        background: #1d1b31;
        color: #fff;
        transform: translateX(3px);
    }

/* Arrow rotation */
.dropdown-btn .arrow {
    margin-left: auto;
    font-size: 18px;
    transition: transform 0.3s;
}

.dropdown.open .dropdown-btn .arrow {
    transform: rotate(180deg);
}

/* Hide arrow in collapsed sidebar */
.sidebar:not(.open) .dropdown-btn .arrow {
    display: none;
}

/* ==============================
   COLLAPSED SIDEBAR DROPDOWN
   ============================== */

.sidebar:not(.open) .dropdown-btn {
    justify-content: center;
    padding: 0;
    gap: 0;
}

/* In collapsed mode, show only icons */
.sidebar:not(.open) .dropdown-menu {
    margin-left: 0;
    border-left: none;
    padding-left: 0;
}

    .sidebar:not(.open) .dropdown-menu li {
        justify-content: center;
    }

        .sidebar:not(.open) .dropdown-menu li a {
            justify-content: center;
            padding: 10px 0 !important;
            width: 48px;
            margin: 3px auto !important;
        }

    /* Hide text in collapsed mode */
    .sidebar:not(.open) .dropdown-menu .links_name {
        display: none !important;
    }

/* Active state for dropdown items */
.dropdown-menu li a.active {
    background: rgba(37, 140, 251, 0.3);
    color: #fff;
}

/* Smooth transition for dropdown content */
.dropdown-menu {
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

/* ==============================
   MOBILE RESPONSIVE DROPDOWN
   ============================== */

@media (max-width: 700px) {
    .sidebar .dropdown-btn {
        width: calc(100% - 36px);
        padding: 12px 18px;
        margin: 0 18px 10px 18px;
        justify-content: flex-start;
    }

        .sidebar .dropdown-btn .arrow {
            display: block;
        }

    .sidebar .dropdown-menu li a {
        width: calc(100% - 36px);
        padding: 10px 18px !important;
        margin: 3px 18px !important;
        justify-content: flex-start;
    }

    .sidebar .dropdown-menu .links_name {
        display: inline !important;
    }
}