:root{--blue:#1a73e8;--bg:#fff;--fg:#202124;--mut:#5f6368;--line:#e3e5e8;--card:#fff;--sh:0 2px 10px rgba(0,0,0,.18)}
@media (prefers-color-scheme:dark){:root{--bg:#202124;--fg:#e8eaed;--mut:#9aa0a6;--line:#3c4043;--card:#2b2c2f}}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;height:100%;overflow:hidden;font:15px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--fg);background:var(--bg)}
#map{position:fixed;inset:0;z-index:0;background:#e5e3df}
button{font:inherit;color:inherit;cursor:pointer}
a{color:var(--blue)}
.ib{border:0;background:transparent;padding:.35rem .55rem;border-radius:50%;font-size:1.05rem;line-height:1}
.ib:hover{background:rgba(127,127,127,.12)}

#top{position:fixed;top:calc(10px + env(safe-area-inset-top));left:10px;right:10px;z-index:1050;max-width:400px}
.sbox{display:flex;align-items:center;background:var(--card);border-radius:24px;box-shadow:var(--sh);padding:2px 6px}
.sbox .home{text-decoration:none;color:var(--mut);font-size:1.2rem;padding:.45rem .6rem}
.sbox input{flex:1;border:0;outline:0;background:transparent;color:var(--fg);font-size:16px;padding:.7rem .2rem;min-width:0}
.sugg{margin-top:6px;background:var(--card);border-radius:14px;box-shadow:var(--sh);max-height:60vh;overflow:auto}
.sugg .it{display:flex;gap:.7rem;padding:.6rem .9rem;border-bottom:1px solid var(--line);cursor:pointer;align-items:flex-start}
.sugg .it:last-child{border-bottom:0}.sugg .it:hover,.sugg .it.on{background:rgba(26,115,232,.08)}
.sugg .ic{font-size:1.1rem;width:1.4rem;text-align:center;flex:none}
.sugg .nm{font-weight:600}.sugg .ad,.mut{color:var(--mut);font-size:.86rem}
.sugg .empty{padding:.8rem 1rem;color:var(--mut)}

#fabs{position:fixed;right:12px;bottom:calc(24px + env(safe-area-inset-bottom));z-index:900;display:flex;flex-direction:column;gap:10px;transition:bottom .2s}
.fab{width:48px;height:48px;border-radius:50%;border:0;background:var(--card);box-shadow:var(--sh);font-size:1.25rem;display:grid;place-items:center;position:relative;color:var(--mut)}
.fab.on{color:var(--blue)}
#shareDot{position:absolute;top:6px;right:6px;width:11px;height:11px;border-radius:50%;background:#e53935;border:2px solid var(--card);animation:pulse 1.6s infinite}
@keyframes pulse{50%{transform:scale(1.35)}}

#sheet{position:fixed;left:0;right:0;bottom:0;z-index:1001;background:var(--card);border-radius:18px 18px 0 0;box-shadow:0 -2px 14px rgba(0,0,0,.2);
  max-height:58vh;overflow:auto;padding:4px 16px calc(10px + env(safe-area-inset-bottom))}
#sheet .grab{width:38px;height:4px;border-radius:2px;background:var(--line);margin:4px auto 8px}
#sheet .credit{font-size:.7rem;color:var(--mut);margin-top:10px}
#sheet .credit a{color:var(--mut)}
@media (min-width:760px){
  #top{max-width:400px}
  #sheet{left:10px;right:auto;width:400px;top:72px;bottom:auto;max-height:calc(100vh - 92px);border-radius:14px}
  #sheet .grab{display:none}
}
.h{font-size:1.25rem;font-weight:600;margin:.1rem 0 .15rem;padding-right:2rem;word-break:break-word}
.x{position:absolute;right:10px;top:8px}
.row{display:flex;gap:.5rem;flex-wrap:wrap;margin:.75rem 0 .2rem}
.btn{border:1px solid var(--line);background:transparent;border-radius:20px;padding:.45rem .9rem;font-weight:500;display:inline-flex;gap:.35rem;align-items:center;text-decoration:none;color:var(--fg)}
.btn.pri{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.red{background:#d93025;border-color:#d93025;color:#fff}
.btn:disabled{opacity:.5}
.modes{display:flex;gap:.4rem;margin:.5rem 0}
.modes button{flex:1;border:1px solid var(--line);background:transparent;border-radius:18px;padding:.4rem .3rem;font-size:.92rem;white-space:nowrap}
@media (max-width:420px){.modes button{font-size:.8rem;padding:.4rem .15rem}}
.modes button.on{background:#e8f0fe;border-color:#c6dafc;color:#1967d2;font-weight:600}
@media (prefers-color-scheme:dark){.modes button.on{background:#28344a;border-color:#3b5584;color:#8ab4f8}}
.ft{display:grid;grid-template-columns:auto 1fr auto;gap:.3rem .5rem;align-items:center;margin:.3rem 2rem .3rem 0}
.ft .dot{width:12px;height:12px;border-radius:50%;margin:0 6px}
.ft .fld{border:1px solid var(--line);border-radius:10px;padding:.5rem .7rem;font-size:.95rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rt{border:1px solid var(--line);border-radius:12px;padding:.55rem .8rem;margin:.4rem 0;cursor:pointer}
.rt.on{border-color:var(--blue);box-shadow:0 0 0 1px var(--blue)}
.rt .tt{font-size:1.15rem;font-weight:600}.rt .tt small{font-weight:400;color:var(--mut);font-size:.9rem;margin-left:.4rem}
.steps{list-style:none;margin:.5rem 0;padding:0}
.steps li{display:flex;gap:.7rem;padding:.5rem 0;border-bottom:1px solid var(--line);align-items:center}
.steps li .sa{width:30px;height:30px;flex:none;color:var(--mut)}
.steps li .sd{margin-left:auto;color:var(--mut);font-size:.85rem;white-space:nowrap}
.chips{display:flex;flex-wrap:wrap;gap:.4rem;margin:.4rem 0}
.chips button{border:1px solid var(--line);background:transparent;border-radius:16px;padding:.35rem .75rem}
.chips button.on{background:var(--blue);border-color:var(--blue);color:#fff}
.inp{width:100%;border:1px solid var(--line);border-radius:10px;padding:.55rem .7rem;font-size:16px;background:transparent;color:var(--fg)}
.link{display:flex;gap:.4rem;align-items:center;border:1px dashed var(--blue);border-radius:10px;padding:.45rem .6rem;margin:.5rem 0;font-size:.9rem;word-break:break-all}
.qr{display:flex;justify-content:center;margin:.6rem 0}.qr img,.qr canvas{background:#fff;padding:8px;border-radius:8px;width:170px;height:170px}
.live{display:inline-flex;align-items:center;gap:.35rem;font-weight:600;color:#d93025}
.live::before{content:"";width:9px;height:9px;border-radius:50%;background:#d93025;animation:pulse 1.6s infinite}
.note{font-size:.82rem;color:var(--mut);background:rgba(127,127,127,.08);border-radius:10px;padding:.5rem .7rem;margin:.6rem 0}
.kv{display:flex;justify-content:space-between;padding:.2rem 0;font-size:.93rem}

/* dẫn đường */
#navTop{position:fixed;top:calc(8px + env(safe-area-inset-top));left:8px;right:8px;z-index:1100;background:#0b8043;color:#fff;border-radius:14px;
  display:flex;gap:.8rem;align-items:center;padding:.7rem .9rem;box-shadow:var(--sh);max-width:520px}
#navTop .ar{width:54px;height:54px;flex:none}
#navTop .dd{font-size:1.7rem;font-weight:700;line-height:1.1}
#navTop .ins{font-size:1.08rem;font-weight:500}
#navThen{position:fixed;top:calc(96px + env(safe-area-inset-top));left:8px;z-index:1100;background:#0a6b38;color:#fff;border-radius:0 0 12px 12px;padding:.35rem .8rem;font-size:.9rem}
#navBot{position:fixed;left:0;right:0;bottom:0;z-index:1100;background:var(--card);display:flex;align-items:center;gap:.4rem;
  padding:.6rem .8rem calc(.6rem + env(safe-area-inset-bottom));box-shadow:0 -2px 12px rgba(0,0,0,.2)}
#navBot .mid{flex:1;text-align:center}
#navBot .eta{font-size:1.25rem;font-weight:700;color:#0b8043}
#navBot .rem{color:var(--mut);font-size:.9rem}
.ib.big{font-size:1.3rem;width:46px;height:46px;border:1px solid var(--line)}
.pill{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(90px + env(safe-area-inset-bottom));z-index:1100;border:0;border-radius:20px;
  background:var(--card);box-shadow:var(--sh);padding:.55rem 1rem;font-weight:600;color:var(--blue)}
body.nav #top,body.nav #fabs{display:none}
body.nav #sheet{display:none}
body.nav.steps #sheet{display:block;z-index:1200}

#toast{position:fixed;left:50%;top:84px;transform:translateX(-50%);z-index:2000;background:#323232;color:#fff;border-radius:8px;padding:.6rem 1rem;
  font-size:.92rem;opacity:0;pointer-events:none;transition:opacity .2s;max-width:90vw;text-align:center}
#toast.on{opacity:1}

/* điểm trên bản đồ */
.me{width:22px;height:22px;position:relative}
.me i{position:absolute;inset:3px;border-radius:50%;background:var(--blue);border:3px solid #fff;box-shadow:0 0 4px rgba(0,0,0,.4)}
.me b{position:absolute;left:50%;top:50%;width:0;height:0;margin-left:-9px;margin-top:-25px;border:9px solid transparent;border-bottom:16px solid rgba(26,115,232,.55);transform-origin:9px 25px;display:none}
.me.hd b{display:block}
.me.nav i{inset:0;border-width:4px}
.pin{width:30px;height:42px}
.who{display:flex;flex-direction:column;align-items:center;transform:translateY(-6px)}
.who .av{width:38px;height:38px;border-radius:50%;background:#d93025;color:#fff;font-weight:700;display:grid;place-items:center;border:3px solid #fff;box-shadow:0 1px 6px rgba(0,0,0,.4);font-size:1.05rem}
.who .av.off{background:#80868b}
.who .nm{margin-top:2px;background:#fff;color:#202124;border-radius:8px;padding:0 .4rem;font-size:.78rem;font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,.3);white-space:nowrap}
.leaflet-container{font:inherit}
.leaflet-control-attribution{font-size:10px}