:root{--bg: #12141a;--panel: #1a1d26;--panel-raised: #222634;--line: #2e3342;--text: #e8eaf0;--muted: #949bb0;--side-c: #4da3ff;--side-c-dim: #17334f;--side-g: #ffb340;--side-g-dim: #4a3512;--accent: #6ee7a8;--warn: #ff6b6b;--radius: 10px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 system-ui,-apple-system,Segoe UI,sans-serif}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.masthead{display:flex;align-items:baseline;gap:16px;padding:18px 24px;border-bottom:1px solid var(--line);background:var(--panel)}.masthead h1{font-size:19px;margin:0;letter-spacing:-.01em}.subtitle{margin:0;color:var(--muted);font-size:13px}.masthead button{margin-left:auto}main{max-width:1240px;margin:0 auto;padding:24px}button{font:inherit;padding:8px 14px;border-radius:8px;border:1px solid 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