/* DESIGN.md preview tool */
.page--design-preview .site-main {
    background: var(--bg);
}

.design-hero {
    padding-bottom: clamp(42px, 6vw, 78px);
}

.design-hero__inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 420px;
    gap: clamp(28px, 5vw, 64px);
    align-items: center;
}

.design-hero__copy {
    max-width: 720px;
}

.design-file-card,
.design-panel,
.design-preview {
    background: rgba(255, 252, 246, .82);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
}

.design-file-card {
    border-radius: var(--radius-lg);
    padding: 16px;
}

.design-dropzone {
    display: grid;
    place-items: center;
    min-height: 250px;
    padding: 28px;
    text-align: center;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius);
    background:
        linear-gradient(135deg, rgba(210, 85, 42, .08), rgba(91, 58, 76, .08)),
        var(--bg-card);
    color: var(--text);
    transition: border-color .2s var(--ease), transform .2s var(--ease), background .2s var(--ease);
}

.design-dropzone:hover,
.design-dropzone.is-dragover {
    border-color: var(--accent);
    transform: translateY(-2px);
    background:
        linear-gradient(135deg, rgba(210, 85, 42, .13), rgba(69, 86, 61, .10)),
        var(--bg-card);
}

.design-dropzone input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.design-dropzone__icon {
    display: inline-grid;
    place-items: center;
    width: 72px;
    height: 72px;
    margin-bottom: 20px;
    border-radius: 22px;
    background: var(--text);
    color: var(--bg);
    box-shadow: 0 18px 42px -22px rgba(20, 16, 10, .65);
}

.design-dropzone__title,
.design-dropzone__meta {
    display: block;
}

.design-dropzone__title {
    font-family: var(--font-serif);
    font-size: 1.45rem;
    line-height: 1.1;
}

.design-dropzone__meta,
.design-file-card__status,
.design-panel__kicker,
.design-token__meta,
.design-section__label,
.design-warning {
    color: var(--text-muted);
    font-size: 13px;
}

.design-file-card__status {
    margin-top: 12px;
    padding: 0 4px;
}

.design-workbench {
    padding-top: clamp(34px, 5vw, 72px);
}

.design-workbench__grid {
    display: grid;
    grid-template-columns: minmax(320px, 410px) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

.design-panel,
.design-preview {
    border-radius: var(--radius-lg);
}

.design-panel {
    position: sticky;
    top: 92px;
    overflow: hidden;
}

.design-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 18px 14px;
    border-bottom: 1px solid var(--line);
}

.design-panel__head strong {
    min-width: 0;
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.design-panel__kicker {
    text-transform: uppercase;
    letter-spacing: .14em;
}

#designSource {
    display: block;
    width: 100%;
    min-height: 520px;
    resize: vertical;
    border: 0;
    padding: 18px;
    background: #181715;
    color: #F4EFE5;
    outline: 0;
    font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    tab-size: 2;
}

.design-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 14px 18px 18px;
    border-top: 1px solid var(--line);
}

.design-actions .btn {
    min-height: 38px;
}

.design-preview {
    min-height: 680px;
    padding: clamp(18px, 3vw, 30px);
    overflow: hidden;
}

.design-empty {
    display: grid;
    place-items: center;
    min-height: 620px;
    text-align: center;
}

.design-empty__mark {
    display: inline-grid;
    place-items: center;
    width: 82px;
    height: 82px;
    margin-bottom: 22px;
    border-radius: 24px;
    background: var(--accent);
    color: #fff;
    font-family: var(--font-serif);
    font-size: 2.2rem;
    box-shadow: 0 18px 44px -22px rgba(210, 85, 42, .85);
}

.design-empty h2,
.design-empty p {
    max-width: 440px;
}

.design-system {
    --d-bg: #F7F5F2;
    --d-surface: #FFFFFF;
    --d-text: #1A1C1E;
    --d-muted: #6C7278;
    --d-primary: #B8422E;
    --d-line: rgba(26, 28, 30, .14);
    color: var(--d-text);
}

.design-system__hero {
    position: relative;
    overflow: hidden;
    padding: clamp(24px, 4vw, 44px);
    border: 1px solid var(--d-line);
    border-radius: var(--d-radius-lg, 22px);
    background: var(--d-bg);
}

.design-system__hero::after {
    content: "";
    position: absolute;
    width: 260px;
    height: 260px;
    right: -96px;
    top: -96px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--d-primary) 26%, transparent);
    pointer-events: none;
}

.design-system__meta {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.design-pill {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 7px 12px;
    border: 1px solid var(--d-line);
    border-radius: 999px;
    background: color-mix(in srgb, var(--d-surface) 72%, transparent);
    color: var(--d-muted);
    font-size: 12px;
    line-height: 1;
}

.design-system__hero h2 {
    position: relative;
    z-index: 1;
    max-width: 780px;
    margin-bottom: 14px;
    color: var(--d-text);
    font-family: var(--d-heading-font, var(--font-serif));
    font-size: clamp(2rem, 5vw, 4.2rem);
    font-weight: var(--d-heading-weight, 500);
    line-height: var(--d-heading-line, 1.02);
    letter-spacing: var(--d-heading-track, 0);
}

.design-system__hero p {
    position: relative;
    z-index: 1;
    max-width: 680px;
    color: var(--d-muted);
    font-family: var(--d-body-font, var(--font-sans));
    font-size: var(--d-body-size, 16px);
    line-height: var(--d-body-line, 1.6);
}

.design-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 18px;
    margin-top: 20px;
}

.design-card {
    grid-column: span 12;
    padding: clamp(18px, 3vw, 26px);
    border: 1px solid var(--d-line);
    border-radius: var(--d-radius-md, 16px);
    background: var(--d-surface);
    box-shadow: 0 18px 52px -36px color-mix(in srgb, var(--d-text) 42%, transparent);
}

.design-card--half { grid-column: span 6; }
.design-card--third { grid-column: span 4; }

.design-card h3 {
    margin-bottom: 16px;
    color: var(--d-text);
    font-family: var(--d-heading-font, var(--font-serif));
}

.design-token-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
    gap: 12px;
}

.design-color {
    overflow: hidden;
    min-height: 138px;
    border: 1px solid var(--d-line);
    border-radius: var(--d-radius-sm, 12px);
    background: var(--d-bg);
}

.design-color__swatch {
    height: 82px;
    border-bottom: 1px solid var(--d-line);
}

.design-token__body {
    padding: 12px;
}

.design-token__name {
    display: block;
    margin-bottom: 4px;
    color: var(--d-text);
    font-weight: 650;
    font-size: 13px;
    overflow-wrap: anywhere;
}

.design-token__meta {
    color: var(--d-muted);
    overflow-wrap: anywhere;
}

.design-type-list,
.design-space-list,
.design-section-list,
.design-warnings {
    display: grid;
    gap: 12px;
}

.design-type-row,
.design-space-row,
.design-section-row,
.design-warning {
    padding: 14px;
    border: 1px solid var(--d-line);
    border-radius: var(--d-radius-sm, 12px);
    background: color-mix(in srgb, var(--d-bg) 60%, var(--d-surface));
}

.design-type-row__sample {
    margin-bottom: 8px;
    color: var(--d-text);
    overflow-wrap: anywhere;
}

.design-space-row {
    display: grid;
    grid-template-columns: minmax(96px, 150px) 1fr auto;
    align-items: center;
    gap: 12px;
}

.design-space-row__bar {
    min-width: 2px;
    height: 14px;
    border-radius: 999px;
    background: var(--d-primary);
}

.design-component-stage {
    display: grid;
    gap: 18px;
    padding: 20px;
    border: 1px solid var(--d-line);
    border-radius: var(--d-radius-lg, 22px);
    background: var(--d-bg);
}

.design-component-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.design-demo-button,
.design-demo-button-secondary,
.design-demo-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 11px 16px;
    border-radius: var(--d-radius-full, 999px);
    font-family: var(--d-body-font, var(--font-sans));
    font-weight: 650;
    font-size: 14px;
    line-height: 1;
}

.design-demo-button {
    border: 1px solid var(--d-primary);
    background: var(--d-primary);
    color: var(--d-on-primary, #fff);
}

.design-demo-button-secondary,
.design-demo-chip {
    border: 1px solid var(--d-line);
    background: var(--d-surface);
    color: var(--d-text);
}

.design-demo-chip {
    min-height: 34px;
    padding: 9px 13px;
    color: var(--d-muted);
}

.design-demo-card {
    padding: 18px;
    border: 1px solid var(--d-line);
    border-radius: var(--d-radius-md, 16px);
    background: var(--d-surface);
}

.design-demo-card strong,
.design-demo-card span {
    display: block;
}

.design-demo-card strong {
    margin-bottom: 6px;
    color: var(--d-text);
}

.design-demo-card span {
    color: var(--d-muted);
    font-size: 14px;
}

.design-section-row h4 {
    margin: 4px 0 8px;
    color: var(--d-text);
    font-family: var(--d-heading-font, var(--font-serif));
    font-size: 1.1rem;
}

.design-section-row p,
.design-section-row li {
    color: var(--d-muted);
    font-size: 14px;
}

.design-section-row ul {
    display: grid;
    gap: 7px;
    margin: 0;
    padding-left: 18px;
    list-style: disc;
}

.design-warning {
    border-color: color-mix(in srgb, var(--accent) 36%, var(--d-line));
    color: var(--accent-deep);
    background: color-mix(in srgb, var(--accent-soft) 40%, var(--d-surface));
}

@media (max-width: 1100px) {
    .design-hero__inner,
    .design-workbench__grid {
        grid-template-columns: 1fr;
    }

    .design-panel {
        position: static;
    }

    #designSource {
        min-height: 360px;
    }
}

@media (max-width: 768px) {
    .design-file-card,
    .design-panel,
    .design-preview {
        border-radius: var(--radius);
    }

    .design-dropzone {
        min-height: 210px;
        padding: 22px;
    }

    .design-card--half,
    .design-card--third {
        grid-column: span 12;
    }

    .design-space-row {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .design-space-row__bar {
        max-width: 100%;
    }
}

.design-workbench__grid--single {
    grid-template-columns: minmax(0, 1fr);
}

.design-source-hidden,
.design-hidden-control {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    min-height: 0 !important;
    margin: -1px !important;
    padding: 0 !important;
    overflow: hidden !important;
    clip: rect(0 0 0 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
    opacity: 0 !important;
    pointer-events: none !important;
}

.design-workbench__grid--single .design-preview {
    width: 100%;
}