/* Trip Kitty styles
   Layout: desktop = trip sidebar + two columns (totals & expenses | settle & people);
   phone = trip switcher header + one tab at a time (Expenses / Settle / People) + bottom tab bar. */
:root{
  --teal:#52c4b4; --teal-ink:#08201c; --teal-sub:#1d4d46; --teal-edge:#2d8f82;
  --amber:#f4b73a; --amber-hover:#f8c75c; --amber-ink:#1b1406;
  --sans:"Figtree",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  /* dark (default) */
  --bg:#0b1514; --panel:#0f1a19; --raised:#111e1c; --line:#22332f; --line2:#1d2c29;
  --text:#e8efed; --muted:#8a9c99; --soft:#13221f; --pos:#5ad69a; --neg:#f07a5f;
  --settle-bg:#22241a; --settle-line:#3a3a24; --settle-muted:#c4c69f;
  --input:#0b1514; --scrim:rgba(3,8,7,.72); --tab-bg:#0d1817;
  color-scheme:dark;
}
:root[data-theme="light"]{
  --bg:#f3f0e8; --panel:#ffffff; --raised:#ffffff; --line:#e2ddd1; --line2:#ece8de;
  --text:#14201e; --muted:#5f6b68; --soft:#f6f3ec; --pos:#1d8758; --neg:#b8432a;
  --settle-bg:#fbf4de; --settle-line:#eadba8; --settle-muted:#6f5d2b;
  --input:#faf8f3; --scrim:rgba(20,24,22,.45); --tab-bg:#ffffff;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:15px;line-height:1.4;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
button:disabled{cursor:default}
input{outline:none}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
input:focus-visible,select:focus-visible{outline:none} /* inputs show focus with a teal border/underline instead */
.field-in:focus,select.field-in:focus{border-color:var(--teal)}
.cap{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.pos{color:var(--pos)} .neg{color:var(--neg)}
.av{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;font-size:12px;font-weight:700;flex-shrink:0}
.field-in{height:48px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:var(--input);color:var(--text);font-weight:500;font-size:16px;width:100%;min-width:0}
.field-in:focus{border-color:var(--teal)}
.field-in:disabled{opacity:.75}
/* dropdowns: same look as text fields, with a chevron */
select.field-in{-webkit-appearance:none;appearance:none;padding-right:40px;cursor:pointer}
.selwrap{position:relative;display:block}
.selwrap::after{content:"";position:absolute;right:16px;top:50%;width:8px;height:8px;margin-top:-6px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);pointer-events:none}
.btn-line{height:44px;padding:0 16px;border:1px solid var(--line);border-radius:10px;background:transparent;color:var(--text);font-weight:600;font-size:15px;white-space:nowrap}
.btn-line:hover{border-color:var(--muted)}
.btn-amber{height:46px;padding:0 18px;border:0;border-radius:10px;background:var(--amber);color:var(--amber-ink);font-weight:700;font-size:15px;white-space:nowrap}
.btn-amber:hover{background:var(--amber-hover)}
.btn-text{background:none;border:0;color:var(--muted);font-weight:500;font-size:13px;padding:6px}
.btn-text:hover{color:var(--text)}

/* ---------- shell ---------- */
#app{display:flex;height:100%;min-height:0}
.side{width:248px;flex-shrink:0;border-right:1px solid var(--line);padding:26px 18px 20px;display:flex;flex-direction:column;gap:10px;overflow:auto;scrollbar-width:none}
.side::-webkit-scrollbar{display:none}
.side .brand{font-size:22px;font-weight:800;letter-spacing:-.01em;margin:0 4px 16px}
.side .cap{margin:0 4px}
.tripcard{display:flex;flex-direction:column;align-items:flex-start;gap:3px;padding:12px;border:1px solid transparent;border-radius:10px;background:transparent;color:var(--text);text-align:left;width:100%}
.tripcard:hover{background:var(--soft)}
.tripcard[aria-current="true"]{background:var(--soft);border-color:var(--line)}
.tripcard b{font-weight:600;font-size:15px;overflow-wrap:anywhere}
.tripcard small{font-size:12px;color:var(--muted)}
.newtrip-inline{display:flex;gap:6px}
.newtrip-inline input{flex:1;min-width:0;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--input);color:var(--text);font-weight:500;font-size:14px}
.newtrip-inline input:focus{border-color:var(--teal)}
.newtrip-inline button{padding:0 12px;border:1px solid var(--line);border-radius:10px;background:transparent;font-weight:600;font-size:16px}
.acctrow{display:flex;align-items:center;gap:10px;padding-top:14px;border-top:1px solid var(--line)}
.acctrow .who{flex:1;min-width:0}
.acctrow .who b{display:block;font-weight:600;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.acctrow .who span{font-size:12px;color:var(--muted)}

.main{flex:1;min-width:0;min-height:0;display:flex;flex-direction:column;overflow-x:hidden}
.dhead{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:26px 32px 18px;max-width:1600px;width:100%;margin-inline:auto}
.dhead h1{margin:0;font-size:30px;font-weight:800;letter-spacing:-.01em;text-wrap:balance}
.dhead .meta{background:none;border:0;padding:0;margin-bottom:4px;color:var(--muted);text-align:left}
.dhead .meta:hover:not(:disabled){color:var(--text)}
.dhead .acts{display:flex;gap:10px;align-items:center}
.mhead{display:flex;align-items:center;gap:10px;padding:max(14px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) 10px max(16px,env(safe-area-inset-left,0px))}
.switcher{flex:1;min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:2px;background:none;border:0;padding:4px 0;color:var(--text);text-align:left}
.switcher .nm{display:flex;align-items:center;gap:6px;max-width:100%;font-size:20px;font-weight:800;letter-spacing:-.01em}
.switcher .nm span:first-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.switcher .nm span:last-child{font-size:12px;color:var(--muted)}
.themebtn{height:44px;padding:0 14px;border:1px solid var(--line);border-radius:22px;background:transparent;font-weight:600;font-size:13px;flex-shrink:0}
.dhead .themebtn{border-radius:10px;font-size:14px;height:46px}

.scroll{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden}
.cols{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start;padding:4px 32px 40px;max-width:1320px;margin-inline:auto}
.colA{flex:999 1 420px;min-width:0;display:flex;flex-direction:column;gap:22px}
.colB{flex:1 1 320px;min-width:0;display:flex;flex-direction:column;gap:22px}
.full{flex:1 1 100%;min-width:0}
.notice{border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:10px;padding:12px 14px;background:var(--panel);font-size:14px}
.tip{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:12px;padding:12px 12px 12px 14px;background:var(--panel);font-size:14px}
.tip p{margin:0;flex:1}
.tip .x{border:0;background:none;color:var(--muted);font-size:16px;width:32px;height:32px}

/* ---------- total card ---------- */
.sum{border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.sum-top{background:var(--teal);color:var(--teal-ink);padding:22px 22px 20px;border-bottom:2px dashed var(--teal-edge)}
.sum-top .cap{color:var(--teal-sub);font-weight:700}
.sum-top .total{font-family:var(--mono);font-weight:600;font-size:46px;letter-spacing:-.02em;margin:4px 0 8px;line-height:1.1;overflow-wrap:anywhere}
.sum-top .sub{font-size:14px;color:var(--teal-sub)}
.sum-grid{background:var(--panel);display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.sum-grid > *{padding:14px 16px;border:0;border-right:1px solid var(--line2);background:none;text-align:left;color:inherit;min-width:0}
.sum-grid > *:last-child{border-right:0}
.sum-grid .cap{font-size:11px;letter-spacing:.08em}
.sum-grid .v{font-family:var(--mono);font-size:15px;font-weight:600;margin-top:4px;overflow-wrap:anywhere}

/* ---------- sections & lists ---------- */
.sec{display:flex;flex-direction:column;gap:12px;min-width:0}
.sec-head{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.sec-head h2{margin:0;font-size:18px;font-weight:700}
.sec-head span{font-size:13px;color:var(--muted)}
.card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--panel)}
.dashed{padding:24px 20px;border:1px dashed var(--line);border-radius:12px;text-align:center;color:var(--muted);font-size:15px}
.grp{display:flex;flex-direction:column;gap:8px}
.grp-head{display:flex;justify-content:space-between;padding:0 4px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--muted)}
.grp-head .mono{letter-spacing:0}
.exp{width:100%;display:flex;align-items:flex-start;gap:14px;padding:14px 16px;border:0;border-top:1px solid var(--line2);background:transparent;color:inherit;text-align:left}
.exp:first-child{border-top-color:transparent}
.exp:hover{background:var(--soft)}
.exp .d{width:36px;flex-shrink:0;padding-top:1px;text-align:center}
.exp .d b{display:block;font-size:18px;font-weight:700;line-height:1}
.exp .d small{display:block;font-size:11px;color:var(--muted);letter-spacing:.04em;margin-top:3px}
.exp .t{flex:1;min-width:0}
.exp .t b{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;word-break:break-word;font-weight:600;font-size:15px;line-height:1.3}
.exp .t small{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.exp .r{text-align:right;flex-shrink:0}
.exp .r .mono{font-size:15px;font-weight:600}
.exp .r small{display:block;font-size:12px;margin-top:4px}
.row{display:flex;align-items:center;gap:12px;padding:12px 12px 12px 14px;border-top:1px solid var(--line2);min-width:0}
.row:first-child{border-top-color:transparent}
.row .grow{flex:1;min-width:0}
.row .grow b{font-weight:600;font-size:15px;overflow-wrap:anywhere}
.row .grow small{display:block;font-size:13px;color:var(--muted);margin-top:2px}
.row .bal{text-align:right;flex-shrink:0}
.row .bal .mono{font-size:15px;font-weight:600}
.row .bal small{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.tag{font-size:11px;font-weight:600;padding:2px 7px;border-radius:20px;border:1px solid var(--line);color:var(--muted);white-space:nowrap}
.namewrap{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.rm{width:32px;height:32px;border:0;border-radius:8px;background:none;color:var(--muted);font-size:14px;flex-shrink:0}
.rm:hover{color:var(--neg)}
.settle{border:1px solid var(--settle-line);border-radius:12px;overflow:hidden;background:var(--settle-bg)}
.settle .row{border-top-color:var(--settle-line)}
.settle .row:first-child{border-top-color:transparent}
.settle .av{border-color:var(--settle-line)}
.settle .amt{font-family:var(--mono);font-size:14px;margin-top:2px;color:var(--settle-muted)}
.markpaid{height:40px;padding:0 14px;border:1px solid var(--settle-line);border-radius:10px;background:var(--panel);color:var(--text);font-weight:600;font-size:14px;flex-shrink:0}
.markpaid:hover:not(:disabled){border-color:var(--settle-muted)}
.balcard{padding:20px;border-radius:16px;background:var(--teal);color:var(--teal-ink)}
.balcard .cap{color:var(--teal-sub);font-weight:700}
.balcard .v{font-family:var(--mono);font-weight:600;font-size:36px;letter-spacing:-.02em;margin-top:4px}
.balcard .s{font-size:14px;color:var(--teal-sub);margin-top:6px}
.addp{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line2)}
.addp input{flex:1;min-width:0;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--input);color:var(--text);font-weight:500;font-size:15px}
.addp input:focus{border-color:var(--teal)}
.known{padding:0 12px 12px;display:flex;flex-direction:column;gap:8px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:20px;background:transparent;color:var(--text);font-weight:600;font-size:14px}
.chip[aria-pressed="true"]{background:var(--teal);border-color:var(--teal);color:var(--teal-ink)}
.chip:disabled{opacity:.6}
.chip[aria-pressed="true"]:disabled{opacity:.85}
.msg{font-size:13px;color:var(--muted)}
.msg.err{color:var(--neg)}
.copybtn{height:48px;border:1px solid var(--line);border-radius:12px;background:transparent;font-weight:600;font-size:15px;width:100%}

/* ---------- phone: tabs, FAB ---------- */
.tabs{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);background:var(--tab-bg);padding:0 max(6px,env(safe-area-inset-right,0px)) max(10px,env(safe-area-inset-bottom,0px)) max(6px,env(safe-area-inset-left,0px))}
.tabs button{position:relative;height:60px;display:flex;align-items:center;justify-content:center;gap:6px;background:none;border:0;color:var(--muted);font-weight:600;font-size:14px}
.tabs button[aria-current="true"]{color:var(--text)}
.tabs button[aria-current="true"]::before{content:"";position:absolute;top:0;left:22%;right:22%;height:3px;border-radius:0 0 3px 3px;background:var(--teal)}
.badge{min-width:20px;height:20px;padding:0 6px;border-radius:10px;background:var(--amber);color:var(--amber-ink);font-size:11px;font-weight:700;display:grid;place-items:center}
.fab{position:fixed;z-index:15;right:max(16px,env(safe-area-inset-right,0px));bottom:calc(86px + env(safe-area-inset-bottom,0px));height:54px;padding:0 22px;border:0;border-radius:27px;background:var(--amber);color:var(--amber-ink);font-weight:700;font-size:16px;box-shadow:0 8px 24px rgba(0,0,0,.28)}
.fab:hover{background:var(--amber-hover)}
.spacer{height:84px;width:100%}

/* ---------- overlays ---------- */
.scrim{position:fixed;inset:0;z-index:30;background:var(--scrim);display:flex}
.scrim.bottom{align-items:flex-end}
.scrim.right{justify-content:flex-end}
.bsheet{width:100%;max-height:88dvh;overflow:auto;background:var(--raised);border-radius:20px 20px 0 0;padding:10px max(16px,env(safe-area-inset-right,0px)) max(22px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));display:flex;flex-direction:column;gap:10px}
.grab{width:40px;height:4px;border-radius:2px;background:var(--line);align-self:center;margin-bottom:8px;flex-shrink:0}
.bsheet .tripcard{padding:14px;border-radius:12px}
.bsheet .tripcard b{font-size:16px}
.bsheet .tripcard small{font-size:13px}
.bsheet .newtrip-inline{gap:8px}
.bsheet .newtrip-inline input{height:48px;padding:0 14px;border-radius:12px;font-size:15px}
.bsheet .newtrip-inline button{height:48px;padding:0 18px;border-radius:12px;font-size:15px}
.drawer{width:460px;max-width:100%;height:100%;background:var(--raised);display:flex;flex-direction:column;border-left:1px solid var(--line)}
.dr-head{display:flex;align-items:center;gap:8px;padding:max(10px,env(safe-area-inset-top,0px)) 10px 10px 8px;border-bottom:1px solid var(--line)}
.dr-head .close{width:44px;height:44px;border:0;border-radius:10px;background:none;font-size:18px}
.dr-head h2{flex:1;margin:0;font-weight:700;font-size:17px}
.dr-head .del{height:40px;padding:0 12px;border:0;border-radius:10px;background:none;color:var(--neg);font-weight:600;font-size:14px}
.dr-body{flex:1;min-height:0;overflow:auto;padding:20px 18px;display:flex;flex-direction:column;gap:22px}
.dr-foot{padding:12px 16px max(16px,env(safe-area-inset-bottom,0px));border-top:1px solid var(--line)}
.fld{display:flex;flex-direction:column;gap:6px;min-width:0}
.amtline{display:flex;align-items:baseline;gap:6px;border-bottom:2px solid var(--line);padding-bottom:6px}
.amtline:focus-within{border-bottom-color:var(--teal)}
.amtline span{font-family:var(--mono);font-size:30px;color:var(--muted)}
.amtline input{flex:1;min-width:0;border:0;background:transparent;color:var(--text);font:600 40px var(--mono);letter-spacing:-.02em;padding:0}
.seg{display:flex;padding:3px;border:1px solid var(--line);border-radius:10px;gap:2px}
.seg button{height:34px;padding:0 14px;border:0;border-radius:7px;background:transparent;color:var(--muted);font-weight:600;font-size:13px}
.seg button[aria-pressed="true"]{background:var(--teal);color:var(--teal-ink)}
.splitbox{border:1px solid var(--line);border-radius:12px;overflow:hidden}
.allrow{width:100%;display:flex;align-items:center;gap:12px;height:52px;padding:0 12px;border:0;border-bottom:1px solid var(--line);background:var(--soft);color:var(--text);text-align:left}
.allrow b{flex:1;font-weight:600;font-size:14px}
.allrow small{font-size:13px;color:var(--muted)}
.box{width:22px;height:22px;border-radius:6px;border:1.5px solid var(--muted);display:grid;place-items:center;font-size:13px;font-weight:800;color:var(--teal-ink);flex-shrink:0}
.box.on{background:var(--teal);border-color:var(--teal)}
.srow{display:flex;align-items:center;gap:12px;min-height:56px;padding:6px 12px;border-top:1px solid var(--line2)}
.srow:first-child{border-top-color:transparent}
.srow > button{flex:1;display:flex;align-items:center;gap:12px;height:44px;background:none;border:0;padding:0;color:var(--text);text-align:left;min-width:0}
.srow .nm{flex:1;font-weight:600;font-size:15px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.srow .sh{font-family:var(--mono);font-size:14px}
.exactin{display:flex;align-items:center;gap:4px;width:130px;height:40px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:var(--input);flex-shrink:0}
.exactin:focus-within{border-color:var(--teal)}
.exactin span{font-family:var(--mono);font-size:14px;color:var(--muted)}
.exactin input{flex:1;min-width:0;border:0;background:transparent;color:var(--text);font:500 15px var(--mono);text-align:right;padding:0}
.save{width:100%;height:52px;border:0;border-radius:12px;background:var(--amber);color:var(--amber-ink);font-weight:700;font-size:16px}
.save:hover:not(:disabled){background:var(--amber-hover)}
.save:disabled{background:var(--soft);color:var(--muted)}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px}
.two > *{min-width:0}
input[type=date]{min-width:0;max-width:100%;-webkit-appearance:none;appearance:none;text-align:left}
input[type=date]::-webkit-date-and-time-value{text-align:left}
.newp{display:grid;grid-template-columns:1fr 1fr auto;gap:8px}
@media (max-width:420px){.newp{grid-template-columns:1fr 1fr}.newp .btn-line{grid-column:1/-1}}

/* ---------- sign in / heroes ---------- */
.center{min-height:100%;display:grid;place-items:center;padding:max(24px,env(safe-area-inset-top,0px)) 16px 24px}
.authcard{width:100%;max-width:400px;display:flex;flex-direction:column;gap:14px}
.authcard .brand{font-size:30px;font-weight:800;letter-spacing:-.01em}
.authcard p{margin:0;color:var(--muted)}
.authtabs{display:grid;grid-template-columns:1fr 1fr;padding:3px;border:1px solid var(--line);border-radius:12px;gap:2px}
.authtabs button{height:40px;border:0;border-radius:9px;background:none;color:var(--muted);font-weight:600}
.authtabs button[aria-pressed="true"]{background:var(--teal);color:var(--teal-ink)}
.hero{border:1px dashed var(--line);border-radius:16px;padding:28px 22px;display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.hero h2{margin:0;font-size:22px;font-weight:800}
.hero p{margin:0;color:var(--muted);max-width:60ch}

/* ---------- responsive ---------- */
@media (min-width:768px){
  .m-only{display:none!important}
  /* desktop: content fills the space beside the sidebar (up to 1600px); columns stack until there's room */
  .cols{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;max-width:1600px;width:100%;margin-inline:auto}
  .cols > .full{grid-column:1/-1}
}
@media (min-width:1200px){
  .cols{grid-template-columns:minmax(0,1.7fr) minmax(360px,1fr)}
}
@media (max-width:767px){
  .d-only{display:none!important}
  input,select,textarea{font-size:16px!important}
  .amtline input{font-size:40px!important}   /* already large: keep the design's size */
  .cols{padding:6px max(16px,env(safe-area-inset-right,0px)) 16px max(16px,env(safe-area-inset-left,0px))}
  .sum-top .total{font-size:38px}
  .drawer{width:100%;border-left:0}
  .main[data-tab="expenses"] .colB{display:none}
  .main[data-tab="settle"] .colA,.main[data-tab="settle"] .sec-people{display:none}
  .main[data-tab="people"] .colA,.main[data-tab="people"] .sec-settle{display:none}
  .main:not([data-tab="expenses"]) .fab{display:none}
}
@media (prefers-reduced-motion:no-preference){
  .scrim{animation:fade .15s ease-out}
  .bsheet{animation:up .2s ease-out}
  .drawer{animation:slide .2s ease-out}
  @keyframes fade{from{opacity:0}}
  @keyframes up{from{transform:translateY(30px)}}
  @keyframes slide{from{transform:translateX(30px)}}
}