:root{
  --bg:#fafafa; --card:#fff; --surface-tint:#f0f0f5; --text:#1a1a1a; --text2:#8e8e93;
  --text3:#c7c7cc; --blue:#007AFF; --blue-tint:#F0F5FF; --green:#34C759; --pink:#E75FA8;
  --border:#e5e5ea; --border-soft:#f0f0f2; --r-sm:8px; --r-md:10px; --r-lg:14px; --r-pill:999px;
  --shadow-sm:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.05);
  --font:'DM Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
.app{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
header.top{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;
  padding:13px 22px;border-bottom:1px solid var(--border);background:#fff}
.brand{display:flex;align-items:center;gap:13px}
.mark{width:34px;height:34px;border-radius:var(--r-sm);background:var(--text);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.wordmark{font-size:16px;letter-spacing:4px;font-weight:700;line-height:.95}
.subh{font-size:12px;color:var(--text2);font-weight:500;margin-top:2px}
.top .right{display:flex;align-items:center;gap:12px}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--surface-tint);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;cursor:pointer}
aside{background:#fff;border-right:1px solid var(--border);padding:16px 12px;display:flex;flex-direction:column}
.sb-item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 11px;
  border-radius:var(--r-md);color:var(--text);font-size:14px;font-weight:500;cursor:pointer}
.sb-item:hover{background:var(--surface-tint)}
.sb-item.on{background:var(--blue-tint);color:var(--blue);font-weight:600}
.sb-item .l{display:flex;align-items:center;gap:9px;min-width:0}
.ico{width:17px;display:inline-block;opacity:.85;text-align:center}
.sb-group{font-size:11px;font-weight:700;letter-spacing:1px;color:var(--text2);
  text-transform:uppercase;margin:18px 0 7px 11px}
.chip{width:24px;height:18px;border-radius:5px;background:var(--surface-tint);color:var(--text2);
  font-size:9.5px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.pchip{width:20px;height:20px;border-radius:6px;display:inline-flex;align-items:center;
  justify-content:center;font-size:11px;color:#fff;flex-shrink:0}
.cnt{font-size:12.5px;color:var(--text2);font-weight:600}
.spacer{flex:1}
.sb-sep{border-top:1px solid var(--border-soft);margin:10px 4px 8px}
main{padding:30px 38px 60px;overflow:auto}
.eyebrow{font-size:11px;font-weight:700;letter-spacing:1.2px;color:var(--text2);text-transform:uppercase}
h1{font-size:25px;font-weight:700;margin:8px 0 4px}
.lede{font-size:14.5px;color:var(--text2)}
.phase0-note{margin-top:28px;padding:18px 20px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);box-shadow:var(--shadow-sm);font-size:14px;color:var(--text2);max-width:560px}
.signin{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px}
.signin .mark{width:54px;height:54px;font-size:24px;border-radius:12px}
.signin h1{font-size:22px}
.signin .sub{color:var(--text2);font-size:14px;margin-top:-6px}