:root{--bg:#0f1115;--panel:#181b22;--border:#2a2f3a;--text:#e8eaf0;--muted:#9aa3b2;--accent:#6ea8fe;--danger:#ff6b6b;--safe-bottom:env(safe-area-inset-bottom,0px)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 -apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,sans-serif}main{max-width:640px;margin:0 auto;padding:16px 16px calc(84px + var(--safe-bottom))}h1{font-size:22px;margin:8px 0 16px}h2{font-size:17px;margin:20px 0 8px}a{color:var(--accent);text-decoration:none}.card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:14px;margin-bottom:12px}.muted{font-size:14px}.badge,.muted{color:var(--muted)}.badge{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;border:1px solid var(--border)}.badge.documented{color:#7ee0a3;border-color:#2f5c41}.badge.reported{color:#ffd166;border-color:#6b5a2a}.badge.speculation,.badge.unverified{color:var(--danger);border-color:#6b2f2f}button,input,select,textarea{font:inherit;color:var(--text);background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:12px 14px;width:100%}button{background:var(--accent);color:#0b1020;font-weight:600;border:none;min-height:48px;cursor:pointer}button.secondary{background:var(--panel);color:var(--text);border:1px solid var(--border)}button:disabled{opacity:.5}form>*+*{margin-top:10px}.tabbar{position:fixed;bottom:0;left:0;right:0;z-index:10;display:flex;justify-content:space-around;background:rgba(15,17,21,.92);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border);padding:8px 0 calc(8px + var(--safe-bottom))}.tabbar a,.tabbar button{display:flex;flex-direction:column;align-items:center;gap:1px;color:var(--muted);font-size:9.5px;min-width:42px;min-height:44px;justify-content:center;padding:0 2px;background:none;border:none;font-weight:400;width:auto;cursor:pointer}.tabbar a.active,.tabbar button.active{color:var(--accent)}.tabbar .icon{font-size:19px;line-height:1}.msg-user{background:#1f3a5f;border-radius:16px 16px 4px 16px;padding:10px 14px;margin:8px 0 8px 15%}.msg-ai{background:var(--panel);border:1px solid var(--border);border-radius:16px 16px 16px 4px;padding:10px 14px;margin:8px 15% 8px 0;white-space:pre-wrap}.list-item{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:14px 4px;border-bottom:1px solid var(--border);min-height:44px}.map-canvas{position:relative;z-index:0;height:60dvh;border:1px solid var(--border);border-radius:14px;background:var(--panel);overflow:hidden;margin-bottom:12px}@keyframes skeleton-pulse{0%,to{opacity:1}50%{opacity:.45}}.skeleton{animation:skeleton-pulse 1.4s ease-in-out infinite}.skeleton-card{min-height:64px}.skeleton-line{height:12px;border-radius:6px;background:var(--border)}.skeleton-line.medium{width:70%;margin-bottom:8px}.skeleton-line.short{width:40%}.sheet-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:20}.sheet{position:fixed;left:0;right:0;bottom:0;z-index:21;max-height:70dvh;overflow-y:auto;background:var(--panel);border-top:1px solid var(--border);border-radius:16px 16px 0 0;padding:16px 16px calc(16px + var(--safe-bottom))}.assistant-fab{position:fixed;right:16px;bottom:calc(84px + var(--safe-bottom));z-index:15;width:52px;height:52px;min-height:52px;border-radius:50%;padding:0;display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:0 4px 14px rgba(0,0,0,.4)}