:root{--bg:#ffffff;--card:#ffffff;--muted:#6b7280;--accent:#0052ff;--border:#e5e7eb;--text:#111827}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial}.content{padding-bottom:72px;padding-top:56px}.card{background:var(--card)!important;border:1px solid var(--border)!important;border-radius:16px}.text-muted{color:var(--muted)!important}.btn-primary{background:var(--accent)!important;border-color:var(--accent)!important}.btn-outline-light{border-color:#d1d5db!important;color:#111827!important}.btn-outline-light:hover{background:#f3f4f6!important}.app-header{position:fixed;top:0;left:0;right:0;height:56px;background:var(--card);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 16px;z-index:1000}.app-header .title{display:flex;align-items:center;gap:8px;font-weight:600;color:#111827}.app-header .right{display:flex;align-items:center;gap:10px;color:#6b7280}.mobile-nav{position:fixed;bottom:0;left:0;right:0;background:var(--card);border-top:1px solid var(--border);display:flex;justify-content:space-around;padding:10px 0;z-index:1000}.mobile-nav a{color:var(--muted);text-decoration:none;font-size:12px;display:flex;flex-direction:column;align-items:center}.mobile-nav a.active{color:var(--accent)}.mobile-nav i{font-size:18px;margin-bottom:3px}.chart{height:240px}.theme-dark{--bg:#0a0f16;--card:#111827;--muted:#a1a7b3;--accent:#f3ba2f;--border:#1a2130;--text:#e6e9ef}.theme-dark body{background:var(--bg);color:var(--text)}.card-gradient{background:linear-gradient(135deg,#6d28d9,#9333ea)!important;color:#fff!important;border:0!important}.badge-soft{background:#ffffff26;color:#fff}.plan-item .right,.plan-item .chev{color:#6b7280}.chip{border-radius:20px;padding:6px 12px;background:#1f2937;color:#e5e7eb}.chip.active{background:#6d28d9;color:#fff}