:root,:host{--color-ground:#fff;--color-recess:#f4f3f1;--color-canvas:#efeeeb;--color-ink:#171514;--color-muted:#6b6459;--color-rule:#e6e3df;--color-rule-strong:#cfcac3;--color-mark:#1d1a17;--font-body:"Inter Variable", Inter, ui-sans-serif, system-ui, sans-serif}:root{color:var(--color-ink);background:var(--color-canvas);font-family:var(--font-body)}*{box-sizing:border-box}body{background:var(--color-canvas);min-width:0;margin:0}button,select{color:inherit;font:inherit}.harness{width:min(1120px,100% - 48px);margin:0 auto;padding:32px 0 48px}.harness__header{justify-content:space-between;align-items:end;gap:32px;margin-bottom:24px;display:flex}.harness__eyebrow,.target-page__domain{color:var(--color-muted);letter-spacing:.08em;text-transform:uppercase;margin:0 0 6px;font-size:11px}.harness h1,.target-page h2{margin:0;font-weight:560}.harness h1{font-size:25px}.fixture-picker{color:var(--color-muted);grid-template-columns:1fr auto;align-items:end;gap:6px;font-size:11px;display:grid}.fixture-picker label{gap:6px;display:grid}.fixture-picker select{border:1px solid var(--color-rule-strong);background:var(--color-ground);border-radius:4px;min-width:250px;padding:8px 30px 8px 10px;font-size:13px}.fixture-picker button{border:1px solid var(--color-ink);background:var(--color-ink);color:var(--color-ground);border-radius:4px;padding:8px 12px;font-size:13px}.harness__bench{grid-template-columns:minmax(0,1fr) 400px;align-items:start;gap:28px;display:grid}.target-page{border:1px solid var(--color-rule-strong);background:var(--color-recess);border-radius:8px;min-height:520px;padding:48px}.target-page h2{max-width:15ch;font-size:clamp(28px,4vw,48px);line-height:1.06}.target-page__note{max-width:42ch;color:var(--color-muted);margin:20px 0 40px;font-size:14px;line-height:1.5}.target-page dl{gap:12px;max-width:380px;margin:0 0 40px;display:grid}.target-page dl div{border-bottom:1px solid var(--color-rule);grid-template-columns:90px 1fr;gap:16px;padding-bottom:12px;display:grid}.target-page dt{color:var(--color-muted);font-size:12px}.target-page dd{margin:0;font-size:13px}.target-page a{color:var(--color-mark);font-size:13px}.rail-viewport{width:400px;height:700px;box-shadow:0 10px 30px #17151424}.rail-frame{background:var(--color-ground);border:0;width:400px;height:700px;display:block}.rail-loading{color:var(--color-muted);margin:0;padding:18px;font-size:12px}@media (max-width:860px){.harness{width:min(100% - 24px,560px)}.harness__header{display:grid}.fixture-picker select{width:min(100%,400px);min-width:0}.harness__bench{grid-template-columns:1fr}.target-page{min-height:0;padding:32px}}