:root{--bg:#f7f7f8;--surface:#ffffff;--border:#e5e5e5;--accent:#2563eb;--accent-light:#eff6ff;--text:#1a1a1a;--text-secondary:#6b7280;--danger:#ef4444;--success:#22c55e;--warning:#f59e0b}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .15s}.btn:hover{opacity:.85}.btn-primary{background:var(--accent);color:white}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-sm{padding:6px 12px;font-size:13px}.input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;outline:none;background:var(--surface)}.input:focus{border-color:var(--accent)}.card{background:var(--surface);border-radius:12px;border:1px solid var(--border);padding:16px;margin-bottom:12px}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase}.badge-memo{background:#eff6ff;color:#2563eb}.badge-email{background:#fef3c7;color:#d97706}.badge-meeting{background:#f0fdf4;color:#16a34a}.badge-call{background:#fce7f3;color:#db2777}.nav-bottom{position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);display:flex;justify-content:space-around;padding:8px 0 max(8px,env(safe-area-inset-bottom));z-index:100}.nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:10px;color:var(--text-secondary);text-decoration:none;padding:4px 12px}.nav-item.active{color:var(--accent)}.nav-icon{font-size:20px}