:root{--bg: #f4f5f7;--surface: #ffffff;--ink: #111827;--muted: #6b7280;--line: #e5e7eb;--accent: #2563eb;--ok-bg: #ecfdf5;--ok-ink: #065f46;--warn-bg: #fffbeb;--warn-ink: #92400e;--err-bg: #fef2f2;--err-ink: #991b1b;--radius: 8px;--font-body: "Inter", system-ui, sans-serif;--font-mono: "IBM Plex Mono", ui-monospace, monospace}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3{margin:0;font-weight:600}h2{font-size:.95rem}.mono{font-family:var(--font-mono);font-size:.85em}.muted{color:var(--muted)}.blank{min-height:100vh;background:var(--bg)}.shell{min-height:100vh;display:flex;flex-direction:column}.topbar{background:var(--surface);border-bottom:1px solid var(--line)}.topbar-inner{max-width:1100px;margin:0 auto;padding:14px 24px 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var(--line);border-radius:var(--radius);padding:28px 28px 24px;width:min(340px,100%);display:flex;flex-direction:column;gap:14px;box-shadow:0 8px 24px #1118270f}.login-brand{font-size:.95rem;font-weight:600;margin-bottom:4px}.login-card .btn{margin-top:4px;width:100%}