:root{--primary:#4caf50;--primary-dark:#388e3c;--bg:#fff;--bg-alt:#f6f8f6;--border:#e5e7eb;--text:#1a1a1a;--text-sub:#6b7280;--danger:#e53935;color:var(--text);background:var(--bg);font-family:Pretendard,-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,system-ui,sans-serif;font-size:18px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{background:var(--bg)}a{color:var(--primary-dark);text-decoration:none}button{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:12px;min-height:56px;padding:0 20px;font-family:inherit;font-size:18px;font-weight:600}button:hover{background:var(--primary-dark)}button.ghost{color:var(--text);border:1px solid var(--border);background:#fff}button.ghost:hover{background:var(--bg-alt)}.layout{min-height:100vh;display:flex}.sidebar{background:var(--bg-alt);border-right:1px solid var(--border);flex-shrink:0;width:240px;padding:20px}.sidebar .brand{color:var(--primary-dark);margin-bottom:24px;font-size:24px;font-weight:800}.sidebar nav a{color:var(--text);border-radius:10px;margin-bottom:4px;padding:14px 16px;font-weight:500;display:block}.sidebar nav a.active,.sidebar nav a:hover{color:var(--primary-dark);background:#fff}.main{flex:1;max-width:100%;padding:24px;overflow-x:hidden}.main h1{margin:0 0 16px;font-size:28px}.main h2{margin:32px 0 12px;font-size:22px}.card{border:1px solid var(--border);background:#fff;border-radius:16px;margin-bottom:20px;padding:20px}.tabs{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.tab{background:var(--bg-alt);border:1px solid var(--border);cursor:pointer;min-height:48px;color:var(--text);border-radius:999px;padding:12px 18px;font-size:16px;font-weight:600}.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.muted{color:var(--text-sub);font-size:16px}.center{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:100vh;padding:24px;display:flex}.brand-lg{color:var(--primary-dark);font-size:36px;font-weight:800}@media (width<=768px){.layout{flex-direction:column}.sidebar{border-right:none;border-bottom:1px solid var(--border);width:100%;padding:12px 16px}.sidebar nav{gap:8px;display:flex;overflow-x:auto}.sidebar nav a{white-space:nowrap;padding:10px 14px}.sidebar .brand{margin-bottom:8px}.main{padding:16px}}.chart-wrap{width:100%;height:320px}.chart-scroll{overflow-x:auto}.chart-scroll-inner{min-width:800px}.export-btn-fixed{z-index:50;position:fixed;top:16px;right:16px}