:root{--bg:#f7f7f5;--surface:#fff;--text:#111;--muted:#6b6b6b;--line:#e7e7e3;--soft:#f1f1ee;--danger:#9b1c1c;--success:#176b3a;--warning:#8a5b00;--radius:14px;--shadow:0 1px 2px rgba(0,0,0,.04),0 8px 28px rgba(0,0,0,.035)}*{box-sizing:border-box}html{font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--bg)}body{margin:0;font-size:15px;line-height:1.5}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}.shell{min-height:100vh;display:grid;grid-template-columns:250px 1fr}.sidebar{background:#0e0e0e;color:#fff;padding:26px 18px;position:sticky;top:0;height:100vh}.brand{font-size:18px;font-weight:750;letter-spacing:-.02em;padding:0 10px 26px}.brand small{display:block;font-size:11px;color:#aaa;font-weight:500;letter-spacing:.08em;text-transform:uppercase;margin-top:2px}.nav{display:grid;gap:4px}.nav a,.nav button{display:flex;width:100%;padding:10px 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