html, body {
    font-family: 'Segoe UI', Tahoma, Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    height: 100%;
}

a, .btn-link {
    color: var(--accent-fill-rest);
}


.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid var(--success-fill-rest);
}

.invalid {
    outline: 1px solid var(--error-fill-rest);
}

.validation-message {
    color: var(--error-fill-rest);
}

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

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

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

/* Loading Spinner */
.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem auto;
}

.loading-progress circle {
    fill: none;
    stroke: #e0e0e0;
    stroke-width: 0.6rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: var(--accent-fill-rest);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

.loading-progress-text:after {
    content: var(--blazor-load-percentage-text, "Loading");
}
/* Use MudBlazor Theme Variables */
.home-container {
    min-height: 100vh;
    background: var(--mud-palette-background);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--mud-palette-primary) 0%, var(--mud-palette-primary-darken) 100%);
    color: var(--mud-palette-primary-text);
    padding: 4rem 0;
    margin-bottom: 3rem;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-weight: 700;
    margin-bottom: 1rem;
    font-size: 3rem;
    line-height: 1.2;
    color: var(--mud-palette-primary-text);
}

.hero-subtitle {
    font-weight: 400;
    margin-bottom: 2rem;
    opacity: 0.9;
    font-size: 1.25rem;
    color: var(--mud-palette-primary-text);
}

.hero-search {
    max-width: 600px;
    margin: 0 auto;
}

.search-field {
    background: var(--mud-palette-surface);
    border-radius: 12px;
}

    .search-field .mud-input-root {
        border-radius: 12px;
        background: var(--mud-palette-surface);
    }

/* Main Container */
.main-container {
    padding: 0 2rem 4rem;
}

/* Content Sections */
.content-section {
    margin-bottom: 4rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--mud-palette-divider);
}

.section-title {
    font-weight: 700;
    color: var(--mud-palette-text-primary);
    margin: 0;
}

.section-subtitle {
    color: var(--mud-palette-text-secondary);
    margin: 0.5rem 0 0;
}

/* Featured Main Card */
.featured-main-card {
    background: var(--mud-palette-surface);
    border: 1px solid var(--mud-palette-divider);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--mud-elevation-2);
}

    .featured-main-card:hover {
        box-shadow: var(--mud-elevation-4);
        transform: translateY(-2px);
    }

.featured-main-content {
    display: flex;
    align-items: center;
    padding: 2.5rem;
    gap: 2rem;
}

.featured-main-info {
    flex: 1;
}

.featured-main-visual {
    flex: 0 0 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.featured-icon-container {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--mud-palette-primary) 0%, var(--mud-palette-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--mud-elevation-4);
}

.featured-icon {
    color: var(--mud-palette-primary-text);
    font-size: 3rem !important;
}

.category-chip {
    margin-bottom: 1rem;
    background: var(--mud-palette-primary);
    color: var(--mud-palette-primary-text);
    font-weight: 600;
}

.featured-main-title {
    font-weight: 700;
    color: var(--mud-palette-text-primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.featured-main-description {
    color: var(--mud-palette-text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
    font-size: 1.1rem;
}

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

/* Featured Secondary Cards */
.featured-secondary-card {
    background: var(--mud-palette-surface);
    border: 1px solid var(--mud-palette-divider);
    border-radius: 12px;
    height: 100%;
    transition: all 0.3s ease;
    box-shadow: var(--mud-elevation-1);
}

    .featured-secondary-card:hover {
        box-shadow: var(--mud-elevation-3);
        transform: translateY(-2px);
        border-color: var(--mud-palette-primary);
    }

.featured-secondary-content {
    padding: 1.5rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.featured-secondary-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.featured-secondary-title {
    font-weight: 600;
    color: var(--mud-palette-text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
    flex-grow: 1;
}

.featured-secondary-description {
    color: var(--mud-palette-text-secondary);
    line-height: 1.5;
    flex-grow: 1;
    margin-bottom: 1rem;
}

/* Content Cards */
.content-card {
    background: var(--mud-palette-surface);
    border: 1px solid var(--mud-palette-divider);
    border-radius: 12px;
    height: 100%;
    transition: all 0.3s ease;
    box-shadow: var(--mud-elevation-1);
}

    .content-card:hover {
        box-shadow: var(--mud-elevation-3);
        transform: translateY(-2px);
        border-color: var(--mud-palette-primary);
    }

.content-card-content {
    padding: 1.5rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.content-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.content-card-category {
    color: var(--mud-palette-text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.content-card-title {
    font-weight: 600;
    color: var(--mud-palette-text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.content-card-description {
    color: var(--mud-palette-text-secondary);
    line-height: 1.5;
    flex-grow: 1;
    margin-bottom: 1rem;
}

.content-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

/* Sidebar */
.sidebar {
    position: sticky;
    top: 2rem;
}

.sidebar-card {
    background: var(--mud-palette-surface);
    border: 1px solid var(--mud-palette-divider);
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: var(--mud-elevation-1);
}

.sidebar-title {
    font-weight: 700;
    color: var(--mud-palette-text-primary);
    margin-bottom: 0;
}

.sidebar-button {
    justify-content: flex-start;
    text-align: left;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    text-transform: none;
    font-weight: 500;
    color: var(--mud-palette-text-primary);
    transition: all 0.2s ease;
}

    .sidebar-button:hover {
        background: var(--mud-palette-action-hover);
        color: var(--mud-palette-primary);
    }

.category-button {
    justify-content: flex-start;
    text-align: left;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    text-transform: none;
    font-weight: 500;
    color: var(--mud-palette-text-primary);
    transition: all 0.2s ease;
}

    .category-button:hover {
        background: var(--mud-palette-action-hover);
        color: var(--mud-palette-primary);
    }

.category-button-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

/* Quiz Card */
.quiz-card {
    background: linear-gradient(135deg, var(--mud-palette-primary) 0%, var(--mud-palette-secondary) 100%);
    color: var(--mud-palette-primary-text);
    border: none;
}

.quiz-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.quiz-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--mud-palette-primary-text);
}

.quiz-description {
    opacity: 0.9;
    margin-bottom: 0;
    color: var(--mud-palette-primary-text);
}

/* Loading Section */
.loading-section {
    padding: 2rem 0;
}

/* Enhanced hover effects using MudBlazor colors */
.featured-main-card:hover,
.featured-secondary-card:hover,
.content-card:hover {
    border-color: var(--mud-palette-primary);
}

/* Focus states */
.sidebar-button:focus,
.category-button:focus {
    background: var(--mud-palette-action-selected);
    outline: 2px solid var(--mud-palette-primary);
    outline-offset: 2px;
}

/* Dark mode specific adjustments */
@media (prefers-color-scheme: dark) {
    .hero-section {
        background: linear-gradient(135deg, var(--mud-palette-primary-darken) 0%, var(--mud-palette-primary) 100%);
    }

    .search-field {
        background: var(--mud-palette-surface);
    }

    .quiz-icon {
        background: rgba(0, 0, 0, 0.2);
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .main-container {
        padding: 0 1rem 4rem;
    }

    .sidebar {
        position: static;
        margin-top: 2rem;
    }
}

@media (max-width: 960px) {
    .hero-section {
        padding: 3rem 0;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .featured-main-content {
        flex-direction: column;
        text-align: center;
        padding: 2rem;
    }

    .featured-main-visual {
        flex: 0 0 auto;
        margin-bottom: 1rem;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

@media (max-width: 600px) {
    .hero-section {
        padding: 2rem 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .main-container {
        padding: 0 0.5rem 4rem;
    }

    .featured-main-content {
        padding: 1.5rem;
    }

    .featured-main-actions {
        flex-direction: column;
        width: 100%;
    }

        .featured-main-actions .mud-button {
            width: 100%;
        }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-section {
    animation: fadeInUp 0.6s ease-out;
}

/* Custom MudBlazor Overrides - maintaining theme consistency */
.mud-card {
    border-radius: 12px !important;
    background: var(--mud-palette-surface) !important;
}

.mud-button-filled {
    border-radius: 8px !important;
    font-weight: 600 !important;
    text-transform: none !important;
}

.mud-button-text {
    text-transform: none !important;
}

.mud-chip {
    border-radius: 6px !important;
    font-weight: 600 !important;
}

/* Ensure proper contrast in both themes */
.mud-elevation-1 {
    box-shadow: var(--mud-elevation-1) !important;
}

.mud-elevation-2 {
    box-shadow: var(--mud-elevation-2) !important;
}

.mud-elevation-3 {
    box-shadow: var(--mud-elevation-3) !important;
}

.mud-elevation-4 {
    box-shadow: var(--mud-elevation-4) !important;
}