/* Global font stack with wide Unicode coverage */
body {
    font-family: "Noto Sans",system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", "Noto Sans CJK", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Arial Unicode MS", sans-serif;
    background-color: #f5f5f5;
}

/* Skip Navigation Links - hidden until focused for accessibility */
.skip-navigation {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 3000; /* above header */
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    white-space: nowrap;
}

.skip-link:focus,
.skip-link:active {
    position: absolute;
    left: 0;
    top: 0;
    width: auto;
    height: auto;
    padding: 0.5rem 1rem;
    background: #0d6efd;
    color: #fff !important;
    text-decoration: none;
    border-radius: 0 0 4px 0;
    outline: 2px solid #fff;
    outline-offset: 0;
}

/* Existing styles */
.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    background: white;
    border: 1px solid #dc3545;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: none;
    left: 50%;
    padding: 2rem;
    position: fixed;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 500px;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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 IGZpbGwtcnVsZT0iZXZlbm9kZCIvPjwvZz48L3N2Zz4=) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred.";
    }

.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #f5f5f5;
    color: #495057;
}

.loading-icon {
    width: 96px;
    height: 96px;
    margin-bottom: 2rem;
    filter: brightness(0) saturate(100%) invert(27%) sepia(94%) saturate(7471%) hue-rotate(358deg) brightness(95%) contrast(118%);
}

.loading-spinner {
    margin-bottom: 2rem;
}

.loading-text {
    font-size: 1.2rem;
    font-weight: 500;
}

code {
    color: #c02d76;
}

/* Layout Styles */
.page-layout {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.top-header {
    background: #fff;
    border-bottom: 1px solid #e9ecef;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    color: #495057 !important;
    text-decoration: none;
    font-size: 1.5rem;
}

.navbar-brand:hover {
    color: #667eea !important;
}

.main-content {
    flex: 1;
    display: flex;
}

.sidebar {
    width: 250px;
    background: #f8f9fa;
    border-right: 1px solid #e9ecef;
    min-height: calc(100vh - 70px);
}

.sidebar-content {
    padding: 1rem;
}

.sidebar .nav-link {
    color: #495057;
    border-radius: 8px;
    margin-bottom: 0.25rem;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    text-decoration: none;
}

.sidebar .nav-link:hover {
    background-color: #e9ecef;
    color: #495057;
}

.sidebar .nav-link.active {
    background-color: #667eea;
    color: white;
}

.sidebar .nav-link i {
    margin-right: 0.75rem;
    width: 1rem;
}

.content-area {
    flex: 1;
    padding: 1rem;
    overflow-x: hidden;
    background-color: #f5f5f5;
}

.unauthenticated-content {
    width: 100%;
    min-height: calc(100vh - 70px);
    background-color: #f5f5f5;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Mobile Navigation */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.25rem;
    padding: 0.5rem;
    cursor: pointer;
    color: #495057;
    position: relative;
    z-index: 2001; /* Above sidebar */
}

.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1999;
}

.mobile-nav-overlay.show {
    display: block;
}

/* Content Area Improvements */
.content-area {
    flex: 1;
    padding: 1rem;
    overflow-x: hidden;
    background-color: #f5f5f5;
}

@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
    }
    
    .sidebar {
        position: fixed;
        top: 0;
        left: -250px;
        width: 250px;
        height: 100vh;
        z-index: 2000;
        transition: left 0.3s ease;
        background: #f8f9fa;
        border-right: 1px solid #e9ecef;
        padding-top: 70px; /* Account for header height */
    }
    
    .sidebar.show {
        left: 0;
    }
    
    .content-area {
        width: 100%;
        padding: 0.75rem;
    }
    
    /* Ensure header content stacks properly on mobile */
    .top-header .d-flex {
        flex-wrap: wrap;
    }
    
    .header-actions {
        gap: 0.5rem;
    }
    
    /* Responsive Tables */
    .table-responsive-stack {
        display: block;
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .table-responsive-stack .table {
        margin-bottom: 0;
    }
    
    /* Card-based mobile layout for complex tables */
    .mobile-card-view {
        display: none;
    }
    
    .mobile-card-view .card {
        margin-bottom: 1rem;
        border: 1px solid #dee2e6;
    }
    
    .mobile-card-view .card-body {
        padding: 0.75rem;
    }
    
    /* Show card view and hide table on small screens */
    .table-responsive-mobile {
        display: block;
    }
    
    .mobile-card-view {
        display: block;
    }
    
    .table-responsive-mobile {
        display: none;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .header-actions {
        flex-direction: column;
        align-items: flex-end;
        gap: 0.25rem;
    }
    
    .top-header .py-2 {
        padding-top: 0.5rem !important;
        padding-bottom: 0.5rem !important;
    }
    
    .content-area {
        padding: 0.5rem;
    }
    
    /* Stack buttons vertically on very small screens */
    .btn-group-mobile {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }
    
    .btn-group-mobile .btn {
        width: 100%;
        margin: 0;
    }
}