:root{--bg: #0d1017;--panel: #141926;--panel-2: #1a2030;--border: #262e42;--text: #e6e9ef;--muted: #8b97ad;--accent: #4cc9f0;--accent-dim: #2b6f88;--danger: #f72585;--good: #06d6a0;--warn: #ffd166;--radius: 8px;--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font:13px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow:hidden}button,input,select,textarea{font:inherit;color:inherit}.app{display:grid;grid-template-rows:auto 1fr auto;height:100%;height:100dvh}.toolbar{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--panel);border-bottom:1px solid var(--border);flex-wrap:wrap}.brand{display:flex;align-items:baseline;gap:8px;font-weight:650;letter-spacing:.2px;margin-right:6px}.brand small{color:var(--muted);font-weight:400}.tool-group{display:flex;gap:4px;padding:3px;background:var(--panel-2);border:1px solid 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