h1:focus {
    outline: none;
}

.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.";
}

/* Theme-aware authentication and form input styling */
.auth-input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--mud-palette-lines-inputs, rgba(128, 128, 128, 0.35));
    border-radius: 8px;
    font-size: 1rem;
    background-color: var(--mud-palette-surface, #ffffff);
    color: var(--mud-palette-text-primary, #000000);
    outline: none;
    box-sizing: border-box;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.auth-input:focus {
    border-color: var(--mud-palette-primary, #2563eb);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.auth-input::placeholder {
    color: var(--mud-palette-text-secondary, rgba(0, 0, 0, 0.4));
}

/* Moodle Rich Content Styles */
.moodle-html-content {
    font-size: 0.925rem;
    line-height: 1.6;
    color: var(--mud-palette-text-primary);
    word-break: break-word;
    overflow-wrap: break-word;
}

.moodle-html-content p {
    margin-top: 0;
    margin-bottom: 0.6rem;
}

.moodle-html-content p:last-child {
    margin-bottom: 0;
}

.moodle-html-content h1,
.moodle-html-content h2,
.moodle-html-content h3,
.moodle-html-content h4,
.moodle-html-content h5,
.moodle-html-content h6 {
    margin-top: 0.85rem;
    margin-bottom: 0.4rem;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
    line-height: 1.3;
}

.moodle-html-content h1 { font-size: 1.35rem; }
.moodle-html-content h2 { font-size: 1.25rem; }
.moodle-html-content h3 { font-size: 1.15rem; }
.moodle-html-content h4 { font-size: 1.05rem; }
.moodle-html-content h5 { font-size: 0.95rem; }
.moodle-html-content h6 { font-size: 0.9rem; }

.moodle-html-content a {
    color: var(--mud-palette-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.15s ease-in-out;
}

.moodle-html-content a:hover {
    color: var(--mud-palette-primary-darken, #1d4ed8);
}

.moodle-html-content ul {
    list-style-type: disc;
    padding-left: 1.5rem;
    margin: 0.5rem 0;
}

.moodle-html-content ol {
    list-style-type: decimal;
    padding-left: 1.5rem;
    margin: 0.5rem 0;
}

.moodle-html-content li {
    margin-bottom: 0.25rem;
}

.moodle-html-content pre {
    white-space: pre-wrap;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    margin: 0.75rem 0 0.25rem 0;
    background: transparent;
    padding: 0;
    border: none;
    color: var(--mud-palette-text-primary);
}

.moodle-html-content code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.875em;
    background: var(--mud-palette-background-grey, rgba(0, 0, 0, 0.05));
    padding: 0.15em 0.35em;
    border-radius: 4px;
}

.moodle-html-content blockquote {
    border-left: 3px solid var(--mud-palette-primary);
    padding-left: 1rem;
    margin: 0.5rem 0;
    color: var(--mud-palette-text-secondary);
}

.moodle-html-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.75rem 0;
    font-size: 0.9rem;
}

.moodle-html-content th,
.moodle-html-content td {
    border: 1px solid var(--mud-palette-lines-default, rgba(0, 0, 0, 0.12));
    padding: 0.5rem 0.75rem;
    text-align: left;
}

.moodle-html-content th {
    background-color: var(--mud-palette-background-grey, rgba(0, 0, 0, 0.04));
    font-weight: 600;
}

.moodle-html-content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 0.5rem 0;
}

.moodle-course-summary {
    max-height: 180px;
    overflow-y: auto;
    padding-right: 4px;
}

.moodle-label-card {
    background-color: var(--mud-palette-background-grey, rgba(0, 0, 0, 0.02));
}

.moodle-page-reader {
    border-top: 1px dashed var(--mud-palette-lines-default, rgba(0, 0, 0, 0.12));
}

/* Master-Detail Course Section Navigation */
.section-sidebar-list {
    max-height: calc(100vh - 220px);
    overflow-y: auto;
    scrollbar-width: thin;
}

.section-sidebar-item {
    transition: all 0.15s ease-in-out;
    border-radius: 8px;
    padding: 10px 12px;
    cursor: pointer;
    border-left: 3px solid transparent;
}

.section-sidebar-item:hover {
    background-color: var(--mud-palette-action-default-hover, rgba(0, 0, 0, 0.04));
}

.section-sidebar-item.active {
    background-color: var(--mud-palette-action-default-hover, rgba(37, 99, 235, 0.09));
    border-left-color: var(--mud-palette-primary, #2563eb);
}



/* Main app bar navigation */
.appbar-nav {
    align-items: center;
    gap: 4px;
    padding: 4px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
}

.appbar-nav .appbar-nav-link {
    text-transform: none;
    font-weight: 500;
    letter-spacing: normal;
    border-radius: 999px;
    padding: 6px 16px;
    min-height: 36px;
    color: rgba(255, 255, 255, 0.78);
    transition: background-color 150ms ease, color 150ms ease;
}

.appbar-nav .appbar-nav-link:hover {
    background-color: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

.appbar-nav .appbar-nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-weight: 600;
}

.appbar-actions {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: 12px;
}

@media (min-width: 960px) {
    .appbar-actions {
        padding-left: 12px;
        border-left: 1px solid rgba(255, 255, 255, 0.2);
    }
}