html,
body {
    min-height: 100%;
    margin: 0;
    background: #f4f6f8;
    color: #172033;
    font-family: "Yu Gothic UI", "Meiryo", "Helvetica Neue", Arial, sans-serif;
}

body {
    overflow-y: scroll;
}

button,
input {
    font: inherit;
}

h1,
h2,
p {
    margin-top: 0;
}

h1:focus {
    outline: none;
}

.app-shell {
    min-height: 100vh;
}

.diagnostics-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 24px 0 48px;
}

.workspace-title {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 20px;
}

.workspace-title h1 {
    margin-bottom: 8px;
    color: #111827;
    font-size: 2.15rem;
    line-height: 1.15;
    font-weight: 800;
}

.product-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: #111827;
    font-weight: 760;
    font-size: 1.1rem;
    text-decoration: none;
}

.product-brand:hover,
.product-brand:focus-visible {
    color: #2563eb;
}

.brand-mark {
    display: grid;
    width: 36px;
    height: 36px;
    place-items: center;
    border-radius: 8px;
    background: #000;
    overflow: hidden;
}

.brand-mark img {
    display: block;
    width: 30px;
    height: 30px;
    object-fit: contain;
}

.site-footer {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid #d9e0ea;
    color: #64748b;
    font-size: 0.9rem;
}

.lead-copy {
    max-width: 760px;
    margin-bottom: 0;
    color: #475569;
    font-size: 1rem;
}

.privacy-chip {
    flex: 0 0 auto;
}

.upload-zone,
.control-panel,
.result-panel,
.summary-card {
    border: 1px solid #d9e0ea;
    border-radius: 8px;
    background: #fff;
}

.upload-zone {
    display: grid;
    min-height: 210px;
    padding: 22px;
    border-style: dashed;
    background: linear-gradient(135deg, #ffffff 0%, #f7fbff 100%);
    transition: border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.clickable-upload {
    cursor: pointer;
}

.upload-zone:hover,
.upload-zone:focus-within {
    border-color: #2563eb;
    background: #f8fbff;
    box-shadow: 0 10px 34px rgba(37, 99, 235, 0.1);
}

.clickable-upload:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.28);
    outline-offset: 3px;
}

.upload-heading {
    display: flex;
    align-items: center;
    gap: 14px;
}

.upload-heading .mud-typography-body2 {
    color: #64748b;
}

.upload-icon {
    display: grid;
    width: 54px;
    height: 54px;
    flex: 0 0 auto;
    place-items: center;
    border-radius: 8px;
    background: #e7f7ee;
    color: #12613a;
    font-weight: 900;
}

.upload-action-text {
    color: #1d4ed8;
    font-weight: 800;
}

.metadata-empty {
    margin: 0;
    color: #64748b;
}

.file-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-top: 1px solid #e5eaf1;
    padding-top: 12px;
    color: #111827;
    overflow-wrap: anywhere;
}

.file-meta-main {
    display: grid;
    min-width: 0;
    gap: 4px;
}

.file-meta strong {
    overflow: hidden;
    color: #111827;
    font-weight: 800;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-meta span {
    color: #64748b;
    font-size: 0.86rem;
    font-weight: 500;
}

.control-panel,
.result-panel {
    padding: 20px;
}

.control-panel .mud-typography-caption {
    color: #64748b;
}

.progress-area {
    margin-top: 16px;
}

.summary-card {
    min-height: 112px;
    padding: 16px;
}

.clickable-summary {
    cursor: pointer;
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.clickable-summary:hover,
.clickable-summary:focus-visible {
    border-color: #2563eb;
    box-shadow: 0 10px 28px rgba(37, 99, 235, 0.12);
    transform: translateY(-1px);
}

.summary-card .mud-typography-caption {
    display: block;
    margin-top: 8px;
    color: #64748b;
    font-weight: 700;
}

.summary-card .mud-typography-h5 {
    margin-top: 2px;
    color: #111827;
    font-weight: 800;
}

.diff-tabs {
    margin-top: 18px;
    border-bottom: 1px solid #dbe3ee;
}

.diff-grid {
    margin-top: 12px;
}

.empty-result {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-top: 14px;
    border: 1px solid #d9e0ea;
    border-radius: 8px;
    padding: 16px;
    background: #f8fafc;
}

.empty-result strong {
    display: block;
    margin-bottom: 4px;
    color: #111827;
}

.empty-result p {
    margin: 0;
    color: #64748b;
}

.diff-grid .mud-table-cell {
    max-width: 340px;
    overflow-wrap: anywhere;
    vertical-align: top;
}

.value-cell {
    display: grid;
    gap: 4px;
}

.style-preview {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

.style-preview small {
    overflow: hidden;
    color: #64748b;
    font-size: 0.76rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.swatch {
    display: inline-block;
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
    border: 1px solid #94a3b8;
    border-radius: 4px;
}

.swatch-empty {
    background:
        linear-gradient(45deg, transparent 46%, #cbd5e1 47%, #cbd5e1 53%, transparent 54%),
        #fff !important;
}

.diff-detail {
    display: grid;
    gap: 12px;
    border-left: 4px solid #2563eb;
    padding: 14px 16px;
    background: #f8fafc;
}

.diff-detail span {
    display: block;
    margin-bottom: 4px;
    color: #64748b;
    font-size: 0.78rem;
    font-weight: 900;
}

.diff-detail p {
    margin: 0;
    color: #334155;
}

.diff-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.diff-detail-grid > div {
    min-width: 0;
    border: 1px solid #d9e0ea;
    border-radius: 8px;
    padding: 12px;
    background: #fff;
}

.diff-detail-grid strong {
    display: block;
    margin-bottom: 8px;
    color: #111827;
}

.preview-block {
    display: grid;
    gap: 8px;
}

.preview-block pre {
    max-height: 260px;
    margin: 0;
    overflow: auto;
    border-radius: 6px;
    padding: 10px;
    background: #111827;
    color: #e5e7eb;
    font-size: 0.82rem;
    line-height: 1.55;
    white-space: pre-wrap;
}

.macro-preview pre {
    background: #0f172a;
    color: #dbeafe;
    font-family: Consolas, "Cascadia Mono", "Yu Gothic UI", monospace;
    tab-size: 4;
}

.preview-block em {
    color: #94a3b8;
    font-style: normal;
}

.mud-button-filled-primary {
    box-shadow: none;
}

.mud-button-filled-primary:hover,
.mud-button-filled-primary:focus-visible {
    box-shadow: 0 8px 22px rgba(37, 99, 235, 0.18);
}

.mud-table-root {
    background: #fff;
}

#blazor-error-ui {
    color-scheme: light only;
    display: none;
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 1000;
    border: 1px solid #fecaca;
    border-radius: 8px;
    background: #fff1f2;
    box-shadow: 0 12px 40px rgba(15, 23, 42, 0.18);
    color: #991b1b;
    padding: 12px 42px 12px 14px;
}

#blazor-error-ui .dismiss {
    position: absolute;
    top: 8px;
    right: 12px;
    cursor: pointer;
}

.loading-progress {
    position: absolute;
    display: block;
    width: 8rem;
    height: 8rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto;
}

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

.loading-progress circle:last-child {
    stroke: #2563eb;
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
}

.loading-progress-text {
    position: absolute;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
    text-align: center;
    font-weight: 700;
}

.loading-progress-text::after {
    content: var(--blazor-load-percentage-text, "Loading");
}

@media (max-width: 920px) {
    .workspace-title {
        align-items: stretch;
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .diagnostics-shell {
        width: min(100% - 20px, 1180px);
        padding-top: 16px;
    }

    .workspace-title h1 {
        font-size: 1.7rem;
    }

    .diff-detail-grid {
        grid-template-columns: 1fr;
    }
}