/* Color Palette */
:root {
    --primary-dark: #1e3a5f;
    --primary-medium: #5b7c99;
    --primary-light: #a8c5d1;
    --accent-beige: #e8dcc4;
    
    /* Light theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-sidebar: var(--primary-dark);
    --bg-navbar: var(--primary-dark);
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-navbar: #ffffff;
    --border-color: #dee2e6;
    --shadow: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-sidebar: #0f1419;
    --bg-navbar: #0f1419;
    --text-primary: #e4e4e4;
    --text-secondary: #a0a0a0;
    --text-navbar: #ffffff;
    --border-color: #404040;
    --shadow: rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Navbar */
.navbar-custom {
    background-color: var(--bg-navbar);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    height: 60px;
}

.navbar-custom .navbar-brand {
    color: var(--text-navbar);
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-logo {
    height: 35px;
    width: auto;
    object-fit: contain;
}

.navbar-brand-text {
    font-weight: 600;
    letter-spacing: 0.5px;
}

.navbar-custom .nav-link {
    color: var(--text-navbar);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s ease;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
}

.navbar-custom .nav-link:hover {
    background-color: var(--primary-medium);
    color: var(--text-navbar);
}

.navbar-custom .dropdown-menu {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px var(--shadow);
}

.navbar-custom .dropdown-item {
    color: var(--text-primary);
    padding: 0.5rem 1rem;
}

.navbar-custom .dropdown-item:hover {
    background-color: var(--primary-light);
    color: var(--primary-dark);
}

/* Notification Badge */
.notification-badge {
    position: relative;
}

.notification-badge .badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: #dc3545;
    border-radius: 50%;
    padding: 0.25rem 0.4rem;
    font-size: 0.65rem;
}

/* User Info */
.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-navbar);
}

.user-avatar-img {
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    min-height: 36px !important;
    max-width: 36px !important;
    max-height: 36px !important;
    border-radius: 50% !important;
    object-fit: cover;
    border: 2px solid var(--border-color);
    display: block;
}

.user-avatar-placeholder {
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    min-height: 36px !important;
    max-width: 36px !important;
    max-height: 36px !important;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-medium), var(--primary-light));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    border: 2px solid var(--border-color);
    flex-shrink: 0;
}

.user-role-badge {
    background-color: var(--accent-beige);
    color: var(--primary-dark);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.fw-semibold {
    font-weight: 600;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    height: calc(100vh - 60px);
    width: 250px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    overflow-y: auto;
    transition: transform 0.3s ease;
    z-index: 1000;
}

.sidebar-nav {
    list-style: none;
    padding: 1rem 0;
}

.sidebar-nav .nav-item {
    margin: 0.25rem 0;
}

.sidebar-nav .nav-link {
    color: var(--text-navbar);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: background-color 0.2s ease;
    border-left: 3px solid transparent;
}

.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link.active {
    background-color: var(--primary-medium);
    border-left-color: var(--accent-beige);
}

.sidebar-nav .nav-link i {
    width: 20px;
    text-align: center;
}

/* Sidebar Submenu */
.sidebar-submenu {
    list-style: none;
    padding: 0;
    margin: 0;
    background-color: rgba(0, 0, 0, 0.2);
}

.sidebar-submenu .nav-link {
    padding: 0.625rem 1.5rem 0.625rem 3rem;
    font-size: 0.9rem;
    border-left: 3px solid transparent;
}

.sidebar-submenu .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--accent-beige);
}

.rotate-180 {
    transform: rotate(180deg);
}

/* Main Content */
.main-content {
    margin-left: 250px;
    margin-top: 60px;
    padding: 2rem;
    min-height: calc(100vh - 60px);
    transition: margin-left 0.3s ease;
}

/* Cards */
.card-custom {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    transition: box-shadow 0.2s ease;
}

.card-custom:hover {
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.card-header-custom {
    background-color: var(--primary-light);
    color: var(--primary-dark);
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 6px 6px 0 0;
}

.card-header-custom[style*="cursor: pointer"]:hover {
    background-color: var(--primary-medium);
    color: white;
    transition: all 0.2s ease;
}

.card-header-custom i.bi-chevron-up,
.card-header-custom i.bi-chevron-down {
    transition: transform 0.2s ease;
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--text-navbar);
    color: var(--text-navbar);
    padding: 0.375rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    background-color: var(--primary-medium);
    border-color: var(--primary-medium);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .sidebar-toggle {
        display: block !important;
    }
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-navbar);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Utility Classes */
.text-primary-custom {
    color: var(--primary-dark);
}

.bg-primary-custom {
    background-color: var(--primary-dark);
}

.bg-medium-custom {
    background-color: var(--primary-medium);
}

.bg-light-custom {
    background-color: var(--primary-light);
}

.bg-accent-custom {
    background-color: var(--accent-beige);
}

/* Smooth transitions */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

button, a, .nav-link {
    transition: all 0.2s ease;
}

/* Notification Styles */
.notification-unread {
    background-color: var(--primary-light) !important;
    opacity: 0.9;
}

[data-theme="dark"] .notification-unread {
    background-color: rgba(91, 124, 153, 0.2) !important;
}

.dropdown-item {
    color: var(--text-primary);
}

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

.dropdown-menu {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px var(--shadow);
}