/* Login Screen Styles */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-card .form-control {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.login-card .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.login-card .input-group-text {
    background-color: var(--light-bg);
    border: 2px solid var(--border-color);
    border-right: none;
    color: var(--text-secondary);
}

.login-card .input-group .form-control {
    border-left: none;
}

.login-card .input-group .form-control:focus {
    border-left: none;
}

.login-card .input-group:focus-within .input-group-text {
    border-color: var(--primary-color);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.loading-overlay .spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 64px;
    margin-bottom: 20px;
    color: var(--primary-color);
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

/* Responsive adjustments for mobile */
@media (max-width: 768px) {
    .login-card {
        padding: 30px 20px;
    }
    
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .header, .main-content, .footer {
        margin-left: 0 !important;
        left: 0 !important;
    }
    
    .search-bar {
        display: none;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .header-actions {
        gap: 10px;
    }
    
    .user-profile span {
        display: none;
    }
}

/* Animation for page transitions */
.page-transition {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Custom scrollbar for webkit browsers */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Status indicators */
.status-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 5px;
}

.status-indicator.online {
    background-color: var(--success-color);
}

.status-indicator.offline {
    background-color: var(--danger-color);
}

.status-indicator.away {
    background-color: var(--warning-color);
}

/* Data table improvements */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table th {
    background-color: var(--light-bg);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
    padding: 15px;
    border-bottom: 2px solid var(--border-color);
}

.data-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
}

.data-table tr:hover {
    background-color: rgba(67, 97, 238, 0.05);
}

/* Form improvements */
.form-floating label {
    color: var(--text-secondary);
}

.form-floating .form-control:focus ~ label {
    color: var(--primary-color);
}

.form-control.is-invalid {
    border-color: var(--danger-color);
}

.form-control.is-valid {
    border-color: var(--success-color);
}

/* Card improvements */
.card-hover {
    transition: all 0.3s ease;
    cursor: pointer;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* Badge improvements */
.badge {
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 20px;
}

/* Button improvements */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

/* Alert improvements */
.alert {
    border: none;
    border-radius: 8px;
    padding: 15px 20px;
}

.alert-dismissible .btn-close {
    padding: 15px 20px;
}

/* Modal improvements */
.modal-content {
    border: none;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 25px;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 20px 25px;
}

/* Progress bar improvements */
.progress {
    height: 8px;
    border-radius: 4px;
    background-color: var(--light-bg);
}

.progress-bar {
    border-radius: 4px;
    transition: width 0.6s ease;
}

/* Tooltip improvements */
.tooltip {
    font-size: 12px;
}

.tooltip-inner {
    border-radius: 6px;
    padding: 8px 12px;
}

/* Popover improvements */
.popover {
    border: none;
    border-radius: 8px;
    box-shadow: var(--shadow-hover);
}

.popover-header {
    border-bottom: 1px solid var(--border-color);
    background-color: var(--light-bg);
    border-radius: 8px 8px 0 0;
}

/* Dropdown improvements */
.dropdown-menu {
    border: none;
    border-radius: 8px;
    box-shadow: var(--shadow-hover);
    padding: 8px 0;
}

.dropdown-item {
    padding: 10px 20px;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary-color);
}

/* List group improvements */
.list-group-item {
    border: none;
    padding: 15px 20px;
    transition: all 0.2s ease;
}

.list-group-item:hover {
    background-color: rgba(67, 97, 238, 0.05);
}

/* Accordion improvements */
.accordion-button {
    background-color: var(--white);
    border: none;
    box-shadow: none;
    padding: 15px 20px;
}

.accordion-button:not(.collapsed) {
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary-color);
}

.accordion-button:focus {
    box-shadow: none;
}

/* Carousel improvements */
.carousel-control-prev,
.carousel-control-next {
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
}

.carousel-control-prev {
    left: 20px;
}

.carousel-control-next {
    right: 20px;
}

/* Breadcrumb improvements */
.breadcrumb {
    background-color: transparent;
    padding: 0;
    margin: 0;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-secondary);
}

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

/* Pagination improvements */
.pagination {
    margin-bottom: 0;
}

.page-link {
    border: none;
    color: var(--primary-color);
    padding: 10px 15px;
    margin: 0 2px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.page-link:hover {
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary-color);
}

.page-item.active .page-link {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Navbar improvements */
.navbar {
    box-shadow: var(--shadow);
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-color) !important;
}

.nav-link {
    color: var(--text-secondary) !important;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

.nav-link.active {
    color: var(--primary-color) !important;
    font-weight: 600;
}

/* Card deck improvements */
.card-deck {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

/* Jumbotron improvements */
.jumbotron {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 30px;
}

/* Media improvements */
.media {
    display: flex;
    align-items: flex-start;
    padding: 15px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.media:hover {
    background-color: rgba(67, 97, 238, 0.05);
}

.media-body {
    flex: 1;
}

/* Figure improvements */
.figure {
    margin: 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.figure-img {
    width: 100%;
    height: auto;
}

.figure-caption {
    padding: 15px;
    background-color: var(--white);
}

/* Image improvements */
.img-thumbnail {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 5px;
    transition: all 0.2s ease;
}

.img-thumbnail:hover {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

/* Code improvements */
.code {
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2px 4px;
    font-size: 90%;
}

pre {
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    overflow-x: auto;
}

/* Blockquote improvements */
.blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 20px;
    margin: 20px 0;
    font-style: italic;
}

.blockquote-footer {
    margin-top: 10px;
    font-size: 90%;
    color: var(--text-secondary);
}

/* Utility improvements */
.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.text-break {
    word-wrap: break-word !important;
    word-break: break-word !important;
}

.text-nowarp {
    white-space: nowrap !important;
}

/* Print styles */
@media print {
    .sidebar,
    .header,
    .footer,
    .btn,
    .dropdown,
    .modal,
    .toast {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }
    
    .content-card {
        box-shadow: none !important;
        border: 1px solid var(--border-color) !important;
        page-break-inside: avoid;
    }
}