@font-face {
    font-family: 'Kalpurush';
    src: url('https://cdn.mateen.me/font/kalpurush.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

:root {
    --sidebar-width: 280px;
    --sidebar-slim-width: 75px;
    --primary: #3b82f6;
    --sidebar-bg: #1e293b;
    --sidebar-hover: rgba(59, 130, 246, 0.1);
    --sidebar-text: #94a3b8;
    --sidebar-active: #ffffff;
    --content-bg: #f8faff;
}

body {
    font-family: 'Kalpurush', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 0.95rem;
    overflow-x: hidden;
    background-color: var(--content-bg);
    color: #3f4254;
}

#wrapper {
    display: flex;
    width: 100%;
}

/* Sidebar Styling */
#sidebar-wrapper {
    height: 100vh;
    position: sticky;
    top: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    z-index: 1001;
    transition: all .3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
    overflow-y: auto;
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
}

#sidebar-wrapper::-webkit-scrollbar {
    display: none; /* Chrome, Safari and Opera */
}

#sidebar-wrapper .sidebar-heading {
    padding: 1.25rem 1.5rem;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: #0f172a;
    white-space: nowrap;
    overflow: hidden;
}

#sidebar-wrapper .sidebar-brand {
    min-width: 0;
    flex: 1;
    align-items: center;
    gap: 0.625rem;
}

#sidebar-wrapper .sidebar-brand-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

#sidebar-wrapper .sidebar-heading .brand-logo,
#sidebar-wrapper .sidebar-heading img {
    width: 28px !important;
    height: 28px !important;
    max-width: 28px !important;
    max-height: 28px !important;
    object-fit: contain;
    flex-shrink: 0;
}

#sidebar-wrapper .list-group-item {
    background-color: transparent;
    color: var(--sidebar-text);
    border: none;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    white-space: nowrap;
}

#sidebar-wrapper .list-group-item i {
    width: 30px;
    min-width: 30px;
    font-size: 1.1rem;
    margin-right: 12px;
    opacity: 0.8;
    text-align: center;
}

#sidebar-wrapper .list-group-item:hover {
    color: var(--sidebar-active);
    background-color: var(--sidebar-hover);
}

#sidebar-wrapper .list-group-item.active {
    color: var(--sidebar-active);
    background-color: rgba(255,255,255,0.05);
    border-left: 4px solid var(--primary);
}

#sidebar-wrapper .list-group-item.small.text-uppercase {
    padding-top: 1.5rem;
    padding-bottom: 0.5rem;
    font-size: 0.7rem;
    letter-spacing: 1px;
    color: #494b74;
    font-weight: 700;
}

/* Page Content Styling */
#page-content-wrapper {
    flex: 1;
    min-width: 0;
    width: 100%;
    max-width: 100vw;
    background: var(--content-bg);
    transition: all .3s ease-in-out;
    overflow-x: hidden;
}

/* Navbar Utilities */
.bg-primary-soft { background-color: rgba(78, 115, 223, 0.1) !important; color: var(--primary) !important; }
.bg-success-soft { background-color: rgba(28, 200, 138, 0.1) !important; color: #1cc88a !important; }
.bg-warning-soft { background-color: rgba(246, 194, 62, 0.1) !important; color: #f6c23e !important; }
.bg-danger-soft { background-color: rgba(231, 74, 59, 0.1) !important; color: #e74a3b !important; }
.bg-info-soft { background-color: rgba(54, 185, 204, 0.1) !important; color: #36b9cc !important; }

.hover-bg-light:hover { background-color: #f5f8fa; }
.smaller { font-size: 0.75rem; }
.ls-1 { letter-spacing: 0.05rem; }

/* Desktop Responsiveness */
@media (min-width: 992px) {
    #wrapper.toggled #sidebar-wrapper {
        width: var(--sidebar-slim-width);
    }

    #wrapper.toggled #sidebar-wrapper .sidebar-heading span,
    #wrapper.toggled #sidebar-wrapper .sidebar-brand-text,
    #wrapper.toggled #sidebar-wrapper .list-group-item span,
    #wrapper.toggled #sidebar-wrapper .list-group-item.small {
        display: none !important;
    }

    #wrapper.toggled #sidebar-wrapper .sidebar-heading {
        padding: 1.5rem 0;
        text-align: center;
    }

    #wrapper.toggled #sidebar-wrapper .sidebar-brand {
        justify-content: center;
        flex: none;
    }
    
    #wrapper.toggled #sidebar-wrapper .sidebar-heading i { margin-right: 0; }
    #wrapper.toggled #sidebar-wrapper .list-group-item { justify-content: center; padding: 1rem 0; }
    #wrapper.toggled #sidebar-wrapper .list-group-item i { margin-right: 0; }
}

/* Mobile Responsiveness */
@media (max-width: 991.98px) {
    #sidebar-wrapper {
        position: fixed;
        top: 0;
        left: 0;
        height: 100%;
        transform: translateX(-100%);
    }
    
    #wrapper.toggled #sidebar-wrapper {
        transform: translateX(0);
        box-shadow: 10px 0 30px rgba(0,0,0,0.2);
    }

    #sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0,0,0,0.5);
        z-index: 1000;
        display: none;
        backdrop-filter: blur(2px);
    }

    #wrapper.toggled #sidebar-overlay {
        display: block;
    }

    #sidebar-wrapper .sidebar-heading {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    #mobile-close-btn { display: block !important; }
}

#mobile-close-btn { display: none; }

/* Dashboard Cards */
.card { border-radius: 12px; border: none; box-shadow: 0 0.1rem 1rem 0.25rem rgba(0, 0, 0, 0.05); transition: transform 0.2s ease; }
.rounded-4 { border-radius: 1rem !important; }
.hover-elevate:hover { transform: translateY(-5px); box-shadow: 0 0.5rem 1.5rem rgba(0,0,0,0.1) !important; }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #ccc; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #bbb; }