html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

body.content-editor-body {
    overflow: hidden;
}

body.content-editor-body .content {
    height: calc(100vh - 1.1rem);
    overflow: hidden;
}

a, .btn-link {
    color: #006bb7;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

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

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.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;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

.slide-list {
    display: grid;
    gap: 0.75rem;
}

.slide-row {
    display: grid;
    grid-template-columns: 2rem 3rem minmax(160px, 240px) minmax(12rem, 1fr) auto auto;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid #dee2e6;
}

.slide-number {
    font-weight: 700;
    color: #495057;
}

.slide-thumb {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
}

.slide-meta {
    min-width: 0;
    overflow-wrap: anywhere;
}

.slide-text-details {
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.slide-text-details summary {
    cursor: pointer;
    color: #0d6efd;
}

.slide-text-full {
    margin-top: 0.5rem;
    color: #212529;
    white-space: pre-wrap;
    line-height: 1.45;
}

.lecture-progress-stack {
    display: grid;
    gap: 0.35rem;
    min-width: 12rem;
}

.lecture-progress-item {
    display: grid;
    gap: 0.25rem;
}

.lecture-progress-bar {
    height: 0.35rem;
}

.transcript-modal-body {
    max-height: 70vh;
    overflow-y: auto;
}

.transcript-text {
    margin: 0;
    white-space: pre-wrap;
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.95rem;
    line-height: 1.5;
}

.lecture-settings-grid {
    display: grid;
    grid-template-columns: minmax(18rem, 1.2fr) minmax(18rem, 0.8fr);
    gap: 1rem;
    align-items: start;
}

.lecture-settings-video-wrap {
    position: relative;
}

.lecture-settings-video {
    display: block;
    width: 100%;
    max-height: 62vh;
    background: #000;
    border: 1px solid #dee2e6;
    border-radius: 6px;
}

.lecture-settings-crop-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    touch-action: none;
    cursor: crosshair;
}

.lecture-settings-form {
    display: grid;
    gap: 1rem;
}

.content-editor-page {
    position: relative;
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr);
    gap: 1rem;
    height: calc(100vh - 3.3rem);
    min-height: 0;
    overflow: hidden;
}

.content-editor-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.content-editor-title {
    min-width: 0;
}

.content-editor-pane {
    display: grid;
    min-width: 0;
    min-height: 0;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    background: #fff;
    overflow: hidden;
}

.content-editor-pane-full {
    display: block;
    min-height: 0;
    overflow: hidden;
}

.content-editor-pane-header {
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid #dee2e6;
    background: #f8f9fa;
    font-weight: 600;
}

.content-editor-textarea {
    min-height: 100%;
    border: 0;
    border-radius: 0;
    resize: none;
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.95rem;
    line-height: 1.5;
}

.content-editor-textarea:focus {
    box-shadow: none;
}

.content-editor-busy {
    position: absolute;
    inset: 0;
    z-index: 20;
    display: grid;
    place-items: center;
    padding: 1rem;
    background: rgba(248, 249, 250, 0.82);
    backdrop-filter: blur(2px);
}

.content-editor-busy-panel {
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: min(28rem, 100%);
    padding: 1rem 1.2rem;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 0.75rem 2rem rgba(33, 37, 41, 0.16);
}

.content-preview {
    overflow: auto;
    padding: 1rem;
}

.content-editor-page .EasyMDEContainer .CodeMirror {
    height: calc(100vh - 14rem);
    min-height: 0;
    border: 0;
}

.content-editor-page .EasyMDEContainer .editor-toolbar {
    border: 0;
    border-bottom: 1px solid #dee2e6;
}

.content-editor-page .EasyMDEContainer .editor-toolbar button.table,
.content-editor-page .EasyMDEContainer .editor-toolbar button.preview,
.content-editor-page .EasyMDEContainer .editor-toolbar button.side-by-side,
.content-editor-page .EasyMDEContainer .editor-toolbar button.fullscreen {
    display: inline-block;
    width: 30px;
    height: 30px;
    margin: 0;
    padding: 0;
    border: 0;
    vertical-align: top;
}

.content-editor-page .EasyMDEContainer .editor-toolbar button.table {
    color: inherit;
    background-color: transparent;
}

.content-editor-page .EasyMDEContainer .editor-preview,
.content-editor-page .EasyMDEContainer .editor-preview-side {
    background: #fff;
    padding: 1rem;
    height: calc(100vh - 14rem);
    overflow: auto;
}

.content-editor-page .EasyMDEContainer img {
    max-width: 100%;
    height: auto;
}

.markdown-body {
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    margin-top: 1.2rem;
    margin-bottom: 0.65rem;
}

.markdown-body h1:first-child,
.markdown-body h2:first-child,
.markdown-body h3:first-child {
    margin-top: 0;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol {
    margin-bottom: 0.85rem;
}

@media (max-width: 900px) {
    .slide-row {
        grid-template-columns: 2rem 3rem minmax(120px, 1fr);
    }

    .slide-meta,
    .slide-row .form-check:last-of-type,
    .slide-row .btn {
        grid-column: 3;
    }

    .content-editor-toolbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .lecture-settings-grid {
        grid-template-columns: 1fr;
    }

    .content-editor-page {
        height: auto;
        overflow: visible;
    }

    .content-editor-page .EasyMDEContainer .CodeMirror,
    .content-editor-page .EasyMDEContainer .editor-preview,
    .content-editor-page .EasyMDEContainer .editor-preview-side {
        height: 60vh;
    }
}