:root {
    --bg-color: #f0f6fc;
    --navbar-bg: #062b4f;
    --subnavbar-bg: #0a3d66;
    --text-color: #000000;
    --card-bg: #ffffff;
    --table-header-bg: #e6f0ff;
    --footer-bg: #ffffff;
    --border-color: #ddd;
    --hover-bg: #f8f9fa;
    --dropdown-bg: #003b5c;
    --button-bg: #0d6efd;
    --button-hover-bg: #0b5ed7;
    --auth-button-border: #ffffff;
    --auth-button-hover-bg: #ffffff;
    --auth-button-hover-text: #062b4f;
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --navbar-bg: #1c2526;
    --subnavbar-bg: #2c3e50;
    --text-color: #ffffff;
    --card-bg: #2c2c2c;
    --table-header-bg: #3a3a3a;
    --footer-bg: #2c2c2c;
    --border-color: #444;
    --hover-bg: #3a3a3a;
    --dropdown-bg: #1c2526;
    --button-bg: #1e88e5;
    --button-hover-bg: #1565c0;
    --auth-button-border: #cccccc;
    --auth-button-hover-bg: #cccccc;
    --auth-button-hover-text: #1c2526;
}

body {
    margin: 0;
    background-color: var(--bg-color);
    font-family: 'Segoe UI', sans-serif;
    color: var(--text-color);
}

.top-navbar {
    background-color: var(--navbar-bg);
    color: white;
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-navbar .brand {
    font-size: 1.5rem;
    font-weight: bold;
}

.top-navbar .profile {
    display: flex;
    align-items: center;
    gap: 10px;
}

.top-navbar .btn-link {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
}

.auth-buttons a.auth-btn {
    background-color: transparent;
    border: 2px solid var(--auth-button-border);
    color: white;
    font-weight: 600;
    padding: 0.3rem 1rem;
    font-size: 0.95rem;
    border-radius: 6px;
    margin-left: 12px;
    transition: all 0.3s ease-in-out;
    text-decoration: none;
}

.auth-buttons a.auth-btn:hover {
    background-color: var(--auth-button-hover-bg);
    color: var(--auth-button-hover-text);
}

.circle-icon {
    border: 1px solid #ffffff33;
    background-color: transparent;
    color: white;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: background-color 0.2s;
}

.circle-icon:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

#theme-toggle.circle-icon {
    margin-left: 12px;
}

.sub-navbar {
    background-color: var(--subnavbar-bg);
    padding: 0.5rem 1.5rem;
    color: white;
}

.sub-navbar a {
    color: white;
    font-weight: 500;
    margin-right: 1.5rem;
    text-decoration: none;
}

.summary-box {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    border-left: 4px solid var(--button-bg);
}

.summary-box h5 {
    font-size: 20px;
    margin-bottom: 4px;
}

.table-header {
    background-color: var(--card-bg);
    padding: 1rem;
    border-radius: 8px 8px 0 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.03);
}

.table-header .left-controls,
.table-header .right-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.table-container {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1rem;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
    overflow-x: auto;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    scrollbar-width: thin;
}

.table thead th {
    background-color: var(--table-header-bg);
    white-space: nowrap;
    font-weight: 600;
    font-size: 14px;
    padding: 10px;
}

.table tbody {
    background-color: var(--card-bg);
}

[data-theme="dark"] .table tbody {
    background-color: #2c2c2c; /* Explicit dark mode background */
}

.table tbody td {
    white-space: nowrap;
    font-size: 14px;
    padding: 8px;
    color: var(--text-color);
}

.table th,
.table td {
    vertical-align: middle;
    text-align: center;
}

.text-muted {
    font-size: 14px;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(255, 255, 255, 0.2); /* Increased contrast */
}

.table-hover tbody tr:hover {
    background-color: var(--hover-bg);
}

[data-theme="dark"] .table-hover tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.25); /* Increased contrast */
}

.modal {
    display: none;
}

.modal:target {
    display: block;
}

.modal-dialog {
    max-width: 500px;
    margin: 1.75rem auto;
}

.modal-content {
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    padding: 1rem;
}

[data-theme="dark"] .modal-content {
    background-color: #333333; /* Darker modal background for contrast */
    color: var(--text-color);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.modal-body {
    padding: 1rem;
}

.modal-body .form-control {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .modal-body .form-control {
    background-color: #3c3c3c; /* Dark input background */
    border-color: #555;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 0.5rem;
    margin-top: 1rem;
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

footer {
    background-color: var(--footer-bg);
    padding: 0.75rem 1.5rem;
    font-size: 13px;
    color: #555;
    border-top: 1px solid var(--border-color);
}

.btn-blue {
    background-color: var(--button-bg);
    color: white;
}

.btn-blue:hover {
    background-color: var(--button-hover-bg);
}

.user-initial {
    border-radius: 50%;
    background-color: var(--button-bg);
    color: white;
    font-weight: bold;
    text-align: center;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    margin-right: 8px;
}

.user-dropdown {
    position: relative;
    cursor: pointer;
}

.user-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    width: 220px;
    background-color: var(--dropdown-bg);
    border-radius: 4px;
    overflow: hidden;
    z-index: 999;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    font-family: "Segoe UI", sans-serif;
}

.user-dropdown:hover .user-dropdown-menu {
    display: block;
}

.user-dropdown-menu .dropdown-header {
    background-color: var(--dropdown-bg);
    color: white;
    padding: 12px 16px;
    border-bottom: 1px solid #005180;
}

.user-dropdown-menu .dropdown-header .name {
    font-weight: 600;
    font-size: 14px;
}

.user-dropdown-menu .dropdown-header .role {
    font-size: 12px;
    opacity: 0.8;
    margin-top: 2px;
}

.user-dropdown-menu form {
    margin: 0;
}

.user-dropdown-menu .dropdown-item {
    background-color: var(--card-bg);
    color: var(--dropdown-bg);
    border: none;
    width: 100%;
    padding: 10px 16px;
    text-align: left;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
}

.user-dropdown-menu .dropdown-item:hover {
    background-color: var(--hover-bg);
}

.sub-navbar .nav-link {
    padding: 8px 16px;
    color: white;
    border-radius: 6px;
    font-weight: 500;
    transition: background-color 0.2s;
    text-decoration: none;
}

.sub-navbar .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.sub-navbar .nav-link.active {
    background-color: #0b2e4e;
    color: white;
}

/* Common Dropdown Wrapper */
.admin-dropdown,
.master-dropdown {
    position: relative;
}

.admin-dropdown-menu,
.master-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background-color: var(--dropdown-bg);
    border-radius: 6px;
    padding: 0; /* remove internal padding to avoid gaps */
    z-index: 1000;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.admin-dropdown:hover .admin-dropdown-menu,
.master-dropdown:hover .master-dropdown-menu {
    display: block;
}

.admin-dropdown-menu a,
.master-dropdown-menu a {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 12px 20px;
    color: white;
    font-weight: 500;
    text-decoration: none;
    transition: background-color 0.2s;
    box-sizing: border-box;
    background-color: transparent; /* ensures full block hoverable */
}

.admin-dropdown-menu a:hover,
.master-dropdown-menu a:hover {
    background-color: rgba(255, 255, 255, 0.1); /* full width & height hover effect */
}

.admin-dropdown-menu i,
.master-dropdown-menu i {
    margin-right: 10px;
}

.header-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 0;
    padding: 0;
}

.pagination-container {
    margin-top: 1rem;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -2px 6px var(--shadow-color);
    padding: 0.5rem 0;
}

.pagination .page-link {
    color: var(--text-color);
}

.pagination .page-link:hover {
    background-color: var(--input-bg);
}

.pagination .page-item.active .page-link {
    background-color: var(--button-bg);
    border-color: var(--button-bg);
    color: var(--text-color);
}

.admin-dropdown.open .admin-dropdown-menu,
.master-dropdown.open .master-dropdown-menu {
    display: block;
}

.admin-dropdown-menu {
    min-width: auto;
    width: max-content;
    padding: 0;
}

.admin-dropdown-menu a {
    padding: 10px 14px;
}

.master-dropdown-menu {
    min-width: auto;
    width: max-content;
    padding: 0;
}

.master-dropdown-menu a {
    padding: 10px 14px;
    white-space: nowrap;
}