:root{
  --snow:#F2F5F8; --card:#FFFFFF; --ink:#152230; --muted:#5A6878; --line:#DCE3EA;
  --frost:#1E66A6; --frost-soft:#E3EEF8; --lantern:#B8432C; --lantern-soft:#FBEAE5;
  --ok:#2E7D4F; --ok-soft:#E3F2E8;
  --display:"Young Serif", Georgia, "Times New Roman", serif;
  --body:"Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --snow:#0E141B; --card:#16202B; --ink:#E5ECF3; --muted:#9AA9B8; --line:#25313F;
  --frost:#7DB6EA; --frost-soft:#16324B; --lantern:#F08C72; --lantern-soft:#3A1F19;
  --ok:#74C795; --ok-soft:#173326; color-scheme:dark}}
:root[data-theme="dark"]{
  --snow:#0E141B; --card:#16202B; --ink:#E5ECF3; --muted:#9AA9B8; --line:#25313F;
  --frost:#7DB6EA; --frost-soft:#16324B; --lantern:#F08C72; --lantern-soft:#3A1F19;
  --ok:#74C795; --ok-soft:#173326; color-scheme:dark}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{background:var(--snow);color:var(--ink);font:400 15px/1.5 var(--body);-webkit-text-size-adjust:100%}
.wrap{max-width:720px;margin:0 auto;padding-inline:16px;padding-block:0 96px}
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--snow);padding:12px 0 8px;display:flex;align-items:baseline;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line)}
header.top h1{font:400 21px/1.2 var(--display);margin:0}
.sync{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px;white-space:nowrap}
.dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}
.dot.on{background:var(--ok)}
h2{font:400 19px/1.25 var(--display);margin:0;text-wrap:balance}
h3{font:600 13px/1.3 var(--body);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0}
section.view{display:flex;flex-direction:column;gap:18px;padding-top:16px}
.hero{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:10px}
.hero .when{font-size:13px;color:var(--muted)}
.hero .big{font:400 22px/1.25 var(--display);margin:0}
.hero .nextline{display:flex;gap:12px;align-items:flex-start;border-top:1px solid var(--line);padding-top:10px}
.hero .lab{font-size:12px;font-weight:600;color:var(--frost);text-transform:uppercase;letter-spacing:.06em;min-width:56px;padding-top:2px}
.hero .nextline>div{min-width:0}
.strip{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin;margin-inline:-16px;padding-inline:16px}
.strip button{flex:0 0 auto;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:10px;padding:6px 10px;font:inherit;font-size:13px;line-height:1.2;text-align:left;cursor:pointer}
.strip button small{display:block;font-size:11px;color:var(--muted)}
.strip button.sel{background:var(--frost);border-color:var(--frost);color:var(--card)}
.strip button.sel small{color:var(--card)}
.strip button.today{box-shadow:inset 0 -3px 0 var(--lantern)}
.dayhead{display:flex;flex-direction:column;gap:2px}
.dayhead .city{font-size:13px;color:var(--muted)}
.tl{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.stop{display:grid;grid-template-columns:62px minmax(0,1fr);gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}
.stop:last-child{border-bottom:0}
.stop .tm{font-size:13px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--frost);padding-top:2px;word-break:break-word}
.stop.past .tm,.stop.past .ttl{color:var(--muted)}
.stop.now{background:var(--frost-soft);margin-inline:-10px;padding-inline:10px;border-radius:10px;border-bottom-color:transparent}
.stop.opt .ttl::before{content:"Option";font:600 10px/1 var(--body);letter-spacing:.06em;text-transform:uppercase;color:var(--lantern);background:var(--lantern-soft);border-radius:4px;padding:3px 5px;margin-right:6px;vertical-align:2px}
.ttl{font-weight:600;font-size:15px;line-height:1.35}
.det{font-size:14px;color:var(--ink);white-space:pre-line;margin-top:3px}
.tr{font-size:13px;color:var(--muted);white-space:pre-line;margin-top:6px;padding-left:10px;border-left:2px solid var(--line)}
details.notes{margin-top:6px;font-size:13px}
details.notes summary{cursor:pointer;color:var(--frost);font-weight:500;list-style:none}
details.notes summary::-webkit-details-marker{display:none}
details.notes summary::before{content:"+ ";}
details.notes[open] summary::before{content:"– ";}
details.notes div{white-space:pre-line;color:var(--ink);margin-top:4px}
.links{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.links a,.links button{font:inherit;font-size:12px;font-weight:500;color:var(--frost);background:transparent;border:1px solid var(--line);border-radius:8px;padding:4px 8px;text-decoration:none;cursor:pointer}
.pick{margin-top:10px;background:var(--lantern-soft);border-radius:10px;padding:8px 10px;display:flex;flex-direction:column;gap:6px}
.pick .pl{font-size:12px;font-weight:600;color:var(--lantern);display:flex;justify-content:space-between;gap:8px}
.pick .chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font:inherit;font-size:13px;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:4px 10px;cursor:pointer}
.chip.on{background:var(--lantern);border-color:var(--lantern);color:var(--card)}
.who{display:inline-flex;align-items:center;gap:4px;font-weight:500;color:var(--muted)}
.who img{width:16px;height:16px;border-radius:50%}
.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:4px 14px}
.row{display:grid;grid-template-columns:28px minmax(0,1fr);gap:10px;padding:11px 0;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.tick{width:24px;height:24px;border-radius:7px;border:1.5px solid var(--muted);background:transparent;display:grid;place-items:center;cursor:pointer;padding:0;color:var(--card)}
.tick.on{background:var(--ok);border-color:var(--ok)}
.tick svg{width:14px;height:14px}
.row .nm{font-weight:600}
.row .nm .zh{font-weight:400;color:var(--muted);margin-left:6px}
.row .meta{font-size:13px;color:var(--muted)}
.row.done .nm{text-decoration:line-through;text-decoration-color:var(--muted)}
.fits{display:inline-block;font-size:11px;font-weight:600;color:var(--frost);background:var(--frost-soft);border-radius:4px;padding:2px 6px;margin-top:4px}
.bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between}
.prog{font-size:13px;color:var(--muted)}
.toggle{font:inherit;font-size:13px;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:5px 12px;cursor:pointer}
.toggle.on{background:var(--ink);color:var(--card);border-color:var(--ink)}
.kv{display:grid;grid-template-columns:minmax(0,1fr);gap:2px;padding:10px 0;border-bottom:1px solid var(--line)}
.kv:last-child{border-bottom:0}
.kv b{font-weight:600}
.kv span{white-space:pre-line;font-size:14px}
nav.tabs{position:fixed;left:0;right:0;bottom:0;z-index:6;background:var(--card);border-top:1px solid var(--line);padding:6px 8px calc(6px + env(safe-area-inset-bottom,0px));display:flex;justify-content:center}
nav.tabs .in{display:flex;width:100%;max-width:720px}
nav.tabs button{flex:1;font:inherit;font-size:12px;font-weight:500;color:var(--muted);background:none;border:0;padding:6px 4px;display:flex;flex-direction:column;align-items:center;gap:2px;cursor:pointer;border-radius:8px}
nav.tabs button svg{width:22px;height:22px}
nav.tabs button.sel{color:var(--frost)}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--frost);outline-offset:2px}
.note{font-size:13px;color:var(--muted)}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(76px + env(safe-area-inset-bottom,0px));background:var(--ink);color:var(--card);font-size:13px;padding:8px 14px;border-radius:999px;z-index:9}
.secjump{display:flex;gap:6px;overflow-x:auto;margin-inline:-16px;padding-inline:16px;padding-bottom:2px}
.secjump a{flex:0 0 auto;font-size:12px;color:var(--ink);border:1px solid var(--line);background:var(--card);border-radius:999px;padding:4px 10px;text-decoration:none}
@media (prefers-reduced-motion: reduce){*{scroll-behavior:auto!important}}

/* ---- app additions ---- */
html,body{margin:0}
header.top .tbtn{all:unset;cursor:pointer;display:flex;flex-direction:column;min-width:0}
header.top .tbtn small{font-size:12px;color:var(--muted)}
header.top h1{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:62vw}
.sync button{font:inherit;font-size:12px;color:var(--frost);background:none;border:0;padding:0;cursor:pointer}
.btn{font:inherit;font-size:14px;font-weight:500;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:10px;padding:9px 14px;cursor:pointer}
.btn.primary{background:var(--frost);border-color:var(--frost);color:var(--card)}
.btn.danger{color:var(--lantern);border-color:var(--lantern)}
.btn.small{font-size:12px;padding:4px 8px;border-radius:8px;color:var(--frost)}
.btns{display:flex;flex-wrap:wrap;gap:8px}
.field{display:flex;flex-direction:column;gap:4px}
.field label{font-size:13px;font-weight:600;color:var(--muted)}
.field input,.field textarea,.field select{font:inherit;font-size:16px;color:var(--ink);background:var(--snow);border:1px solid var(--line);border-radius:10px;padding:9px 11px;width:100%}
.field textarea{min-height:76px;resize:vertical}
.field .hint{font-size:12px;color:var(--muted)}
.err{font-size:13px;color:var(--lantern);white-space:pre-line}
.overlay{position:fixed;inset:0;z-index:20;background:rgba(10,16,24,.45);display:flex;align-items:flex-end;justify-content:center}
.sheet{background:var(--card);width:100%;max-width:720px;max-height:92vh;overflow:auto;border-radius:16px 16px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:14px}
@media (min-width:760px){.overlay{align-items:center}.sheet{border-radius:16px}}
.tripcard{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}
.tripcard:last-child{border-bottom:0}
.tripcard .nm{font-weight:600}
.tripcard.cur .nm::after{content:" · open";color:var(--frost);font-weight:500}
.empty{text-align:center;padding:40px 8px;display:flex;flex-direction:column;gap:12px;align-items:center}
.ro{font-size:12px;font-weight:600;color:var(--lantern);background:var(--lantern-soft);border-radius:6px;padding:4px 8px;align-self:flex-start}
.whotext{font-size:12px;color:var(--muted);font-weight:500}