:root{--ink: #1f2328;--muted: #656d76;--line: #d0d7de;--bg: #f6f8fa;--card: #ffffff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.login-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:28px;width:100%;max-width:360px;display:flex;flex-direction:column;gap:14px}.login-brand{display:flex;align-items:center;gap:10px}.login-brand h1{font-size:1.4rem;margin:0}.brand-icon{color:#1a7f37}.login-sub{margin:-8px 0 6px;color:var(--muted);font-size:.9rem}.login-card label{display:flex;flex-direction:column;gap:5px;font-size:.85rem;color:var(--muted)}.login-card input{padding:9px 11px;border:1px solid var(--line);border-radius:7px;font-size:1rem}.login-card button{margin-top:6px;padding:10px;border:0;border-radius:7px;background:#1a7f37;color:#fff;font-weight:600;font-size:1rem;cursor:pointer}.login-card button:disabled{opacity:.6;cursor:default}.login-error{background:#ffebe9;color:#cf222e;padding:8px 11px;border-radius:7px;font-size:.88rem}.app-shell{max-width:600px;margin:0 auto;padding:0 16px 48px}.app-header{display:flex;align-items:center;justify-content:space-between;padding:18px 2px;border-bottom:1px solid var(--line);margin-bottom:20px}.app-title{font-weight:700}.signout,.back-link{display:inline-flex;align-items:center;gap:6px;background:none;border:0;color:var(--muted);font-size:.9rem;cursor:pointer;text-decoration:none}.back-link{margin-bottom:14px}.overview{display:flex;flex-direction:column;gap:16px}.metric-link{text-decoration:none;color:inherit}.chart-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px}.chart-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:6px}.chart-label{font-weight:600}.chart-latest{font-size:1.8rem;font-weight:700}.chart-unit{font-size:.9rem;margin-left:2px}.chart-svg{width:100%;height:auto;display:block}.chart-grid{stroke:var(--line);stroke-width:1}.detail-table{width:100%;border-collapse:collapse;margin-top:16px}.detail-table th,.detail-table td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--line);font-size:.92rem}.detail-table th{color:var(--muted)}.state-msg{color:var(--muted);text-align:center;padding:48px 0}.empty-state{text-align:center;padding:56px 16px;color:var(--muted)}.empty-state h2{color:var(--ink);margin:12px 0 6px}.empty-icon{color:#0969da;opacity:.7}