body {
    background-color: #f8f9fa;
    color: #343a40;
    padding: 20px;
    font-size: 0.9rem;
    margin: 0;
    padding-left: 250px; /* Adjust based on sidebar width */
    padding-top: 70px; /* Adjust for header height */
    transition: background-color 0.3s ease, color 0.3s ease;
}

body.dark-mode {
    background-color: #212529;
    color: #f8f9fa;
}

.dark-mode a {
    color: #4da6ff;
}

.dark-mode a:hover {
    color: #8ccbff;
}

.dark-mode h1,
.dark-mode h2,
.dark-mode h3,
.dark-mode h4,
.dark-mode h5,
.dark-mode h6,
.dark-mode p,
.dark-mode li,
.dark-mode ul,
.dark-mode ol,
.dark-mode span,
.dark-mode div {
    color: #f8f9fa;
}

.dark-mode .navbar,
.dark-mode .navbar-nav,
.dark-mode .navbar-collapse {
    background-color: #343a40;
    color: #f8f9fa;
}

.dark-mode .navbar.bg-light {
    background-color: #343a40 !important;
    /* Override bg-light with bg-dark equivalent in dark mode */
}

.container {
    max-width: 1200px;
    padding-bottom: 20px;
}

h1 {
    text-align: center;
    color: #212529;
    margin-bottom: 30px;
    font-size: 1.8rem;
    transition: color 0.3s ease;
}

body.dark-mode h1 {
    color: #f8f9fa;
}

h5 {
    color: #495057;
    border-bottom: 2px solid #dee2e6;
    padding-bottom: 5px;
    margin-bottom: 15px;
    font-size: 1.1rem;
    transition: color 0.3s ease, border-color 0.3s ease;
}

body.dark-mode h5 {
    color: #adb5bd;
    border-bottom: 2px solid #495057;
}

.card {
    border: none;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

body.dark-mode .card {
    background-color: #343a40;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.card-body {
    padding: 15px;
    flex: 1;
    overflow-y: auto;
}

ul, ol {
    padding-left: 20px;
    margin-bottom: 0;
}

li {
    margin-bottom: 5px;
}

strong {
    color: #dc3545;
    transition: color 0.3s ease;
}

body.dark-mode strong {
    color: #ff6b6b;
}

.row {
    margin-bottom: 20px;
}

.col-md-6, .col-md-12, .col-md-4 {
    margin-bottom: 15px;
}

footer {
    text-align: center;
    margin-top: 40px;
    color: #6c757d;
    font-size: 0.8rem;
    padding-left: 250px; /* Adjust for sidebar */
    transition: color 0.3s ease;
}

body.dark-mode footer {
    color: #adb5bd;
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 250px;
    background-color: #e9ecef;
    border-right: 1px solid #dee2e6;
    padding-top: 20px;
    z-index: 1000;
    overflow-y: auto;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

body.dark-mode .sidebar {
    background-color: #343a40;
    border-right: 1px solid #495057;
}

.sidebar .navbar-brand {
    margin-bottom: 20px;
    padding-left: 15px;
    font-weight: bold;
    color: #007bff;
    transition: color 0.3s ease;
}

body.dark-mode .sidebar .navbar-brand {
    color: #4dabf7;
}

.sidebar .navbar-nav {
    width: 100%;
}

.sidebar .nav-item {
    margin-bottom: 5px;
}

.sidebar .nav-link {
    color: #343a40;
    padding: 10px 15px;
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
}

body.dark-mode .sidebar .nav-link {
    color: #f8f9fa;
}

.sidebar .nav-link:hover, .sidebar .nav-link.active {
    background-color: #dee2e6;
    border-left: 3px solid #007bff;
    color: #007bff;
}

body.dark-mode .sidebar .nav-link:hover, body.dark-mode .sidebar .nav-link.active {
    background-color: #495057;
    border-left: 3px solid #4dabf7;
    color: #4dabf7;
}

.sidebar .navbar-toggler {
    margin-left: 15px;
    margin-bottom: 10px;
}

/* Placeholder for Navbar to prevent layout shift */
#navbar-placeholder {
    position: fixed;
    top: 0;
    left: 0;
    width: 250px;
    height: 100vh;
    background-color: #e9ecef;
    z-index: 999;
    transition: background-color 0.3s ease;
}

body.dark-mode #navbar-placeholder {
    background-color: #343a40;
}

/* Header Styles */
.site-header {
    position: fixed;
    top: 0;
    left: 250px; /* Start after sidebar */
    right: 0;
    height: 60px;
    background-color: #ffffff;
    border-bottom: 1px solid #dee2e6;
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 15px;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

body.dark-mode .site-header {
    background-color: #2c3034;
    border-bottom: 1px solid #495057;
}

.site-header .site-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: #007bff;
    transition: color 0.3s ease;
}

body.dark-mode .site-header .site-title {
    color: #4dabf7;
}

.site-header .settings-btn {
    border-color: #6c757d;
    color: #6c757d;
    transition: all 0.3s ease;
}

body.dark-mode .site-header .settings-btn {
    border-color: #adb5bd;
    color: #adb5bd;
}

body.dark-mode .site-header .settings-btn:hover {
    background-color: #495057;
    border-color: #adb5bd;
    color: #ffffff;
}

body.dark-mode .dropdown-menu {
    background-color: #343a40;
    color: #f8f9fa;
    border: 1px solid #495057;
    min-width: 200px; /* Ensure the dropdown scales to fit content */
}

body.dark-mode .dropdown-item {
    color: #f8f9fa;
}

body.dark-mode .dropdown-item:hover {
    background-color: #495057;
    color: #ffffff;
}

body.dark-mode .form-check-label {
    color: #f8f9fa;
}

.dark-mode .form-check {
    display: flex;
    align-items: center;
}

.dark-mode .form-check-label {
    margin-right: 10px; /* Position label to the left of toggle */
}

.dark-mode .form-check-input {
    margin-left: 0; /* Ensure toggle is to the right of label */
}

/* Placeholder for Header to prevent layout shift */
#header-placeholder {
    position: fixed;
    top: 0;
    left: 250px;
    right: 0;
    height: 60px;
    background-color: #ffffff;
    z-index: 999;
    transition: background-color 0.3s ease;
}

body.dark-mode #header-placeholder {
    background-color: #2c3034;
}

/* Responsive adjustments */
@media (max-width: 991px) {
    body, footer {
        padding-left: 0;
    }
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: 250px;
        z-index: 1000;
        overflow-y: auto;
        display: none; /* Hidden by default on mobile */
    }
    .sidebar.show {
        display: block; /* Shown when toggled */
    }
    #navbar-placeholder {
        display: none;
    }
    .container {
        margin-top: 70px; /* Adjust for top spacing on mobile */
    }
    .site-header {
        left: 0; /* No sidebar offset on mobile */
    }
    #header-placeholder {
        left: 0;
    }
    .navbar-toggler {
        border-color: #007bff; /* Match theme color */
    }
    .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 123, 255, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
    body.dark-mode .navbar-toggler {
        border-color: #4dabf7;
    }
    body.dark-mode .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(77, 171, 247, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
}

@media (max-width: 768px) {
    .col-md-6, .col-md-12, .col-md-4 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    .site-header .site-title {
        font-size: 1.2rem;
    }
}