.benchmark-page { letter-spacing: 0; }
.benchmark-page [hidden] { display: none !important; }
.benchmark-header { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 28px; padding: 18px max(20px, calc((100% - 1240px) / 2)); background: var(--bg-surface); border-bottom: 1px solid var(--border-color); }
.benchmark-brand { display: flex; align-items: center; gap: 9px; font-size: 18px; font-weight: 750; }
.benchmark-header nav { display: flex; flex-wrap: wrap; gap: 12px 20px; font-size: 14px; }
.benchmark-header nav a { text-decoration: underline; text-underline-offset: 4px; }
.benchmark-language { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.benchmark-page select { background: var(--bg-surface); border: 1px solid var(--input-border); border-radius: 6px; padding: 9px; min-height: 42px; }
.benchmark-main { max-width: 1280px; margin: auto; padding: 20px; min-width: 0; }
.benchmark-page .tool-page-header { margin-bottom: 0; }
.benchmark-page .tool-page-header h1 { margin: 10px 0; }
.benchmark-page .tool-page-header p { max-width: 80ch; }
.benchmark-page .tool-share-bar { margin: 16px 0; }
.benchmark-ad { text-align: center; overflow: hidden; margin: 12px 0 20px; }
.benchmark-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.benchmark-editor { min-width: 0; }
.benchmark-editor h2, .benchmark-result h2, .benchmark-help h2 { font-size: 18px; margin: 0 0 10px; }
.benchmark-input { width: 100%; height: 260px; display: block; resize: vertical; padding: 16px; border: 1px solid var(--input-border); border-radius: 6px; background: var(--bg-surface); font: 15px/1.7 ui-monospace, SFMono-Regular, Consolas, monospace; tab-size: 4; }
.benchmark-markdown-input, .benchmark-preview { height: 460px; }
.benchmark-preview { display: block; width: 100%; background: white; border: 1px solid var(--input-border); border-radius: 6px; }
.benchmark-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 14px 0; }
.benchmark-toolbar label { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.benchmark-check { font-size: 14px; }
.benchmark-page input[type=checkbox] { width: 18px; height: 18px; flex-shrink: 0; }
.benchmark-file { position: relative; margin-top: 10px; overflow: hidden; cursor: pointer; }
.benchmark-toolbar .benchmark-file { margin-top: 0; }
.benchmark-file input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.benchmark-file:focus-within { outline: 3px solid #2879dc; outline-offset: 3px; }
.benchmark-page .btn { gap: 8px; max-width: 100%; white-space: normal; overflow-wrap: anywhere; }
.benchmark-page .btn:disabled { opacity: .5; cursor: not-allowed; }
.benchmark-status { min-height: 28px; padding: 4px 0; font-size: 14px; overflow-wrap: anywhere; }
.benchmark-status[data-error=true] { color: #a3212b; font-weight: 600; }
.benchmark-result { margin-top: 14px; border-top: 1px solid var(--border-color); padding-top: 16px; }
.benchmark-result-heading { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; }
.benchmark-legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; margin-bottom: 10px; }
.benchmark-legend > span { padding: 3px 6px; }
.benchmark-diff { white-space: pre-wrap; overflow-wrap: anywhere; font: 15px/1.8 ui-monospace, SFMono-Regular, Consolas, monospace; min-height: 120px; max-height: 600px; overflow: auto; padding: 16px; background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 6px; tab-size: 4; }
.benchmark-added { color: #125330; background: #ddf6e7; text-decoration: none; }
.benchmark-removed { color: #8b1825; background: #ffe2e6; text-decoration: line-through; }
.benchmark-line { display: block; }
.benchmark-marker { user-select: none; font-weight: 700; text-decoration: none; }
.benchmark-privacy { margin: 22px 0; color: var(--text-muted); font-size: 13px; line-height: 1.7; }
.benchmark-help { padding: 24px 0; border-top: 1px solid var(--border-color); }
.benchmark-help p { margin: 12px 0; line-height: 1.8; max-width: 100ch; font-size: 14px; }
.benchmark-page .tool-share-dialog { max-height: calc(100dvh - 32px); overflow: auto; }
.benchmark-page .tool-share-dialog p { overflow-wrap: anywhere; }
.benchmark-skip { position: absolute; top: -100px; background: white; padding: 12px; z-index: 1000; }
.benchmark-skip:focus { top: 0; }
@media (max-width: 700px) {
    .benchmark-header { padding: 16px; gap: 14px; }
    .benchmark-header nav { order: 3; width: 100%; font-size: 13px; }
    .benchmark-language { font-size: 13px; flex-wrap: wrap; }
    .benchmark-brand { font-size: 16px; }
    .benchmark-main { padding: 16px; }
    .benchmark-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
    .benchmark-input { height: 210px; }
    .benchmark-markdown-input { height: 280px; }
    .benchmark-preview { height: 360px; }
}