/* SwapSeat — mobile-first minimal.
   Base = phone (~400px). Single column, 44px targets, one accent, hairlines.
   Class hooks unchanged — JS renderers depend on them. */
:root{
  --blue:#0000ff; --volt:#00d37c; --hivis:#fffc52;
  --ink:#111; --mut:#555; --dim:#777;
  --paper:#fff; --wash:#f6f6f4; --line:#e3e3e0; --hair:#111;
  --ok:#0a8a4d; --warn:#8a6d00; --bad:#d92d20;
  --txt:var(--ink); --bg:var(--paper); --bg2:var(--wash); --card:var(--paper);
  --cyan:var(--blue); --violet:var(--blue); --green:var(--volt); --amber:var(--warn); --rose:var(--bad);
  --r:14px; --max:560px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent} html{scroll-behavior:smooth}
button,input,select,summary,a{touch-action:manipulation}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text",Inter,"Segoe UI",Roboto,sans-serif;font-size:16px;line-height:1.45;-webkit-font-smoothing:antialiased}
h1,h2,h3{letter-spacing:-.02em;margin:0 0 8px;line-height:1.12}
h1{font-size:32px} h2{font-size:22px} h3{font-size:17px}
a{color:var(--blue)} .muted{color:var(--mut)} .fine{font-size:12.5px;color:var(--dim)}
code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.85em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 14px}
section{padding:20px 0}
/* header */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;gap:10px;height:54px}
.brand{font-weight:800;font-size:19px;color:var(--ink);text-decoration:none}
.brand small{display:block;font-size:9px;letter-spacing:.18em;color:var(--dim);font-weight:600}
nav.main{display:none}
.spacer{flex:1}
/* buttons — 44px targets */
.btn{border:1px solid var(--hair);background:#fff;color:var(--ink);border-radius:12px;padding:0 18px;min-height:44px;font-weight:600;font-size:15px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.ghost{background:transparent}
.btn.small{min-height:40px;padding:0 14px;font-size:13.5px}
.btn:disabled{opacity:.4;cursor:not-allowed}
/* hero */
.hero{padding:22px 0 6px}
.hero h1{margin:8px 0}
.grad{color:var(--blue)}
.hero p{margin:0 0 4px}
.pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:999px;padding:5px 11px;font-size:12px;color:var(--mut);background:#fff}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px}
.mode-tabs{display:flex;gap:10px;margin:14px 0}
.mode-tabs button{flex:1;border:1px solid var(--line);background:#fff;color:var(--ink);min-height:84px;border-radius:16px;font-weight:700;font-size:15px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;font-size:26px}
.mode-tabs button span{font-size:13px;font-weight:700}
.mode-tabs button.on{background:var(--ink);border-color:var(--ink);color:#fff}
/* forms */
.journey{display:grid;grid-template-columns:1fr;gap:10px;margin-top:8px}
.field label{display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);font-weight:600;margin-bottom:5px}
.field input,.field select{width:100%;background:#fff;border:1px solid var(--hair);color:var(--ink);border-radius:12px;min-height:44px;padding:0 14px;font-size:16px;font-family:inherit}
.field input::placeholder{color:#999}
/* chips + pills */
.coach-pills,.goal-chips,.filters{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.coach-pills button,.goal-chips button,.filters button{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;min-height:40px;padding:0 14px;font-size:13px;font-weight:600;cursor:pointer}
.coach-pills button.on,.goal-chips button.on,.filters button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.sec-head{margin-bottom:10px} .sec-head h2{margin:2px 0}
.eyebrow{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);font-weight:700}
/* legend */
.legend{display:flex;flex-wrap:wrap;gap:6px;font-size:12px;color:var(--mut);margin:10px 0}
.legend i{width:11px;height:11px;border-radius:3px;display:inline-block;margin-right:5px;vertical-align:-1px;border:1px solid var(--hair)}
.lg{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--line);border-radius:999px;padding:4px 10px;font-size:11.5px;background:#fff}
.lg-sw{font-weight:800} .lg-unknown{border-style:dashed;color:var(--dim)} .lg-note,.lg-hint{border:0;padding-inline:0;color:var(--dim);font-size:11px} .lg-hint{width:100%}
/* coach map */
.coach-shell{padding:10px;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.coach-row{display:flex;gap:8px;align-items:stretch;overflow-x:auto;margin-top:8px;padding-bottom:4px}
.coach-end{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:48px;border:1px dashed var(--line);border-radius:10px;color:var(--dim);font-size:10px}
.bays{display:flex;gap:8px}
.bay{min-width:168px;background:var(--wash);border:1px solid var(--line);border-radius:12px;padding:8px}
.bay.has-mine{border-color:var(--blue);outline:2px solid var(--blue)}
.bay.zoom{outline:2px solid var(--blue)}
.bay-label{font-size:10px;letter-spacing:.12em;color:var(--dim);font-weight:700;text-align:center}
.bay-range{text-align:center;font-size:11px;color:var(--dim);margin-top:6px}
.sleeper-grid{display:grid;grid-template-columns:1fr 8px 1fr;gap:6px;margin-top:8px}
.main-block,.side-block{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.aisle{display:flex;justify-content:center}.aisle span{width:3px;background:repeating-linear-gradient(#ccc 0 5px,transparent 5px 9px);border-radius:2px}
.chair-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:8px}
.seat{border:1px solid var(--hair);background:#fff;color:var(--ink);border-radius:10px;padding:6px 4px;display:flex;flex-direction:column;align-items:center;gap:1px;cursor:pointer;min-height:56px;min-width:0;font-size:13px}
.seat .n{font-weight:700;font-size:13px}.seat .t{font-size:10px;color:var(--dim);font-weight:700}
.seat.mine{background:var(--blue);border-color:var(--blue);color:#fff}.seat.mine .t{color:#fff}
.seat.want{border-color:var(--blue);outline:2px solid var(--blue)}
.seat.peer{border-color:var(--volt);outline:2px solid var(--volt)}
.t-LB{border-left:3px solid var(--blue)} .t-UB{border-left:3px solid var(--ink)} .t-MB{border-left:3px solid #bbb}
.t-SL{border-left:3px solid var(--volt)} .t-SU{border-left:3px dashed var(--ink)} .t-SM{border-left:3px dashed #bbb}
.t-W{border-left:3px solid var(--blue)} .t-A{border-left:3px solid var(--volt)} .t-M{border-left:3px solid #bbb}
/* zoom + elevation */
.zoombox{margin-top:10px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:12px}
.zoom-head b{font-size:15px} .zoom-head span{color:var(--dim);font-size:12px}
.coach-cross{font-size:11.5px;color:var(--dim);margin:6px 0}
.level{display:grid;grid-template-columns:64px 1fr;gap:8px;align-items:center;margin:8px 0}
.level-tag{font-size:10.5px;font-weight:700;color:var(--mut);letter-spacing:.06em}
.level-seats{display:flex;gap:6px;flex-wrap:wrap}
.level-seat{border:1px solid var(--hair);background:#fff;border-radius:10px;padding:8px 10px;min-width:88px;min-height:56px;text-align:center}
.level-seat b{font-size:14px}.level-seat i{display:block;font-style:normal;font-size:11px;font-weight:700;color:var(--blue)}
.level-seat small{color:var(--dim);font-size:10px}
.level-seat.mine{background:var(--blue);border-color:var(--blue);color:#fff}
.level-seat.mine i{color:#fff}
.level-seat.want{border-color:var(--blue);outline:2px solid var(--blue)}
.zoom-tip{font-size:12.5px;color:var(--mut);margin-top:6px}.zoom-empty{color:var(--mut)}
.elev{margin:10px 0 2px;padding:10px;border:1px solid var(--line);border-radius:12px;background:var(--wash)}
.elev figcaption{font-size:13px;color:var(--mut)} .elev figcaption b{color:var(--ink)}
.elev-note{display:block;font-size:11px;color:var(--dim);margin-top:2px}
.elev-grid{display:grid;grid-template-columns:52px repeat(3,minmax(0,1fr));gap:6px;margin-top:10px}
.elev-h{text-align:center;font-size:10px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--blue)}
.elev-h span{display:block;font-weight:500;font-size:10px;color:var(--dim)}
.elev-lv{display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--mut);border-right:1px dashed var(--line)}
.elev-col{display:flex;flex-direction:column;justify-content:flex-end;gap:6px}
.elev-col-S{border-left:1px dashed var(--line);padding-left:6px}
.elev-empty{display:grid;place-items:center;min-height:52px;border:1px dashed var(--line);border-radius:10px;color:var(--dim);font-size:11px}
.elev-floor{height:6px;margin:8px 0 0 60px;border-radius:3px;background:repeating-linear-gradient(90deg,#d8d8d4 0 10px,#eee 10px 20px)}
.elev-floor span{display:none}
.elev-keys{display:flex;flex-wrap:wrap;gap:4px 10px;margin-top:10px;font-size:11px;color:var(--mut)}
.elev-keys i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:4px}
.k-floor{background:var(--blue)} .k-mid{background:var(--warn)} .k-top{background:var(--ink)} .k-side{background:var(--volt)}
.elev-mount{margin-bottom:10px}
.cell{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;border:1px solid var(--hair);background:#fff;border-radius:10px;padding:6px 4px;cursor:pointer;min-height:52px;font:inherit;text-align:center;color:var(--ink)}
.cell .cell-n{font-weight:700;font-size:13px} .cell .cell-t{font-size:10px;color:var(--dim)} .cell .cell-s{font-size:11px;font-weight:800}
.cell.mine{background:var(--blue);border-color:var(--blue);color:#fff} .cell.mine .cell-t{color:#fff}
.cell.want{border-color:var(--blue);outline:2px solid var(--blue)} .cell.peer{border-color:var(--volt)}
.cell.t-LB,.cell.t-W{border-left:3px solid var(--blue)} .cell.t-UB{border-left:3px solid var(--ink)} .cell.t-MB{border-left:3px solid #bbb}
.cell.t-SL,.cell.t-A{border-left:3px solid var(--volt)} .cell.t-SU{border-left:3px dashed var(--ink)} .cell.t-SM{border-left:3px dashed #bbb}
/* flight */
.fuselage{max-width:480px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:48px;padding:14px 10px}
.nose,.tail{text-align:center;color:var(--dim);font-size:10px;letter-spacing:.14em;font-weight:700;padding:4px}
.frow{display:flex;align-items:center;justify-content:center;gap:5px;padding:2px 0}
.frow.wing .fseat{background:var(--wash)}
.rno{font-size:10px;color:var(--dim);width:18px;text-align:center}
.faisle{width:14px}
.fseat{width:40px;height:40px;border-radius:10px 10px 5px 5px;border:1px solid var(--hair);background:#fff;color:var(--ink);font-size:13px;font-weight:700;cursor:pointer}
.fseat.mine{background:var(--blue);border-color:var(--blue);color:#fff}
.fseat.wanttype{outline:2px solid var(--blue)} .fseat.peer{border-color:var(--volt);outline:2px solid var(--volt)} .fseat.exit{border-color:var(--blue)}
.fvoid{width:40px;height:40px}
.exit-row,.galley-row{text-align:center;font-size:11px;color:var(--ink);background:var(--hivis);border:1px solid var(--hair);border-radius:10px;padding:5px;margin:4px 8px}
.conf{text-align:center;font-size:11px;font-weight:600;border-radius:10px;padding:6px;margin:4px 8px}
.conf-ok{background:#e6f6ec;border:1px solid var(--ok);color:var(--ok)}
.conf-warn{background:#fff8d6;border:1px solid var(--hair);color:var(--ink)}
.conf-dim{background:var(--wash);color:var(--mut);border:1px dashed var(--line)}
.confbadge{display:flex;gap:8px;align-items:flex-start;border:1px solid var(--line);border-radius:10px;padding:8px 10px;margin:8px 0;background:var(--wash)}
.conf-ico{flex:none;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;border:1px solid currentColor;font-size:11px;font-weight:800}
.conf-txt{font-size:12.5px;color:var(--mut)} .conf-txt b{color:var(--ink)}
.conf-blurb{display:block;font-size:11.5px} .conf-meta{display:block;font-size:11px;font-family:ui-monospace,Menlo,monospace}
.cabin-sec{text-align:center;font-size:10.5px;letter-spacing:.1em;font-weight:700;color:var(--dim);margin:10px 0 2px;text-transform:uppercase}
/* cards */
.swaps{display:grid;grid-template-columns:1fr;gap:10px}
.swap{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:12px}
.swap .top{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.swap .top b{font-size:14.5px}
.badge{font-size:10.5px;font-weight:700;border-radius:999px;padding:3px 9px;border:1px solid var(--line);color:var(--mut)}
.badge.ok{background:#e6f6ec;border-color:var(--ok);color:var(--ok)} .badge.plus{background:var(--ink);border-color:var(--ink);color:#fff}
.badge.v0{color:var(--dim)} .badge.v1{background:#fff3d6;border-color:var(--warn);color:var(--warn)} .badge.v2{background:#e6f6ec;border-color:var(--ok);color:var(--ok)}
.badge.st-requested{color:var(--blue);border-color:var(--blue)} .badge.st-accepted,.badge.st-crew{background:var(--ink);border-color:var(--ink);color:#fff}
.badge.st-completed{background:#e6f6ec;border-color:var(--ok);color:var(--ok)} .badge.st-expired,.badge.st-cancelled,.badge.st-declined{color:var(--dim)}
.mini{font-size:13px;color:var(--mut);margin:6px 0}.mini b{color:var(--ink)}
.scorebar{height:6px;background:var(--wash);border-radius:99px;overflow:hidden;margin:8px 0}.scorebar i{display:block;height:100%;background:var(--blue)}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
/* plans */
.plans{display:grid;grid-template-columns:1fr;gap:8px;margin:10px 0}
.plan{border:1px solid var(--line);border-radius:12px;padding:12px;display:flex;align-items:center;gap:10px;text-align:left}
.plan b{font-size:14px} .plan span{font-size:12.5px;color:var(--mut);flex:1} .plan .btn{flex:none}
.plan.hot{border:1.5px solid var(--ink)}
.affils{display:grid;grid-template-columns:1fr;gap:8px}
.affil{border:1px solid var(--line);border-radius:12px;padding:10px 12px;font-size:13px;color:var(--mut)}
.affil b{color:var(--ink)}
/* checkout */
.gwlist{display:flex;flex-direction:column;gap:8px;margin:10px 0}
.gw{display:flex;align-items:center;gap:10px;width:100%;min-height:56px;text-align:left;border:1px solid var(--hair);background:#fff;color:var(--ink);border-radius:12px;padding:10px 12px;cursor:pointer;font-size:14px}
.gw-ic{font-size:20px} .gw b{display:block;font-size:14px} .gw small{color:var(--mut);font-size:12px} .gw-go{margin-left:auto;color:var(--blue);font-weight:700}
.pw-badge{display:inline-block;font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;border:1px solid var(--hair);border-radius:999px;padding:4px 10px;margin-bottom:6px;background:var(--hivis)}
.upi-box{background:var(--wash);border:1px solid var(--line);border-radius:10px;padding:10px;margin:8px 0}
.qr-fake{font-size:24px;letter-spacing:4px;background:var(--ink);color:#fff;border-radius:8px;padding:8px;text-align:center;margin:8px 0}
/* preview gains */
.gains{list-style:none;margin:8px 0;padding:0;display:flex;flex-direction:column;gap:6px}
.gains li{background:var(--wash);border:1px solid var(--line);border-radius:10px;padding:8px 10px;font-size:13.5px}
.pv-cols{display:grid;grid-template-columns:1fr;gap:8px;margin:8px 0}
/* text list */
.maplist{background:var(--wash);border:1px solid var(--line);border-radius:12px;padding:10px 12px;font-size:13px;color:var(--mut)}
.maplist summary{cursor:pointer;font-weight:700;color:var(--ink);min-height:44px;display:flex;align-items:center}
.maplist-body p{margin:6px 0}
/* modal / toast / bars */
#modal{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:flex-end;justify-content:center;z-index:99}
#modal[hidden]{display:none}
.sheet{background:#fff;border-radius:16px 16px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom));width:100%;max-width:560px;max-height:92dvh;overflow:auto}
#toast{position:fixed;bottom:84px;left:12px;right:12px;margin:0 auto;max-width:480px;background:var(--ink);color:#fff;padding:11px 14px;border-radius:12px;z-index:120;font-size:13.5px;font-weight:600;text-align:center}
#toast[hidden]{display:none}
.installbar{position:fixed;bottom:76px;left:12px;right:12px;max-width:480px;margin:0 auto;background:#fff;border:1px solid var(--hair);border-radius:14px;padding:10px 12px;display:flex;gap:10px;align-items:center;z-index:90;font-size:13px}
#installBar[hidden]{display:none}
#offlineBar{position:sticky;top:54px;z-index:60;background:#fff3d6;border-bottom:1px solid var(--hair);text-align:center;font-size:12.5px;font-weight:600;padding:8px}
#offlineBar[hidden]{display:none}
.tabbar{position:fixed;bottom:0;left:0;right:0;z-index:80;display:flex;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding:6px 2px calc(6px + env(safe-area-inset-bottom))}
.tabbar a{flex:1;text-align:center;color:var(--mut);text-decoration:none;font-size:10.5px;font-weight:600;min-height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px}
@media (max-width:560px){#walletPill{display:none}.topbar .wrap{gap:8px}.btn.small{min-height:40px;padding:0 12px}}
footer{border-top:1px solid var(--line);padding:20px 0 110px;color:var(--dim);font-size:12px;text-align:center}
.steps{display:grid;grid-template-columns:1fr;gap:8px}
.step .num{font-size:22px;font-weight:800;color:var(--blue)}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;margin:8px 0}
.faq summary{font-weight:600;cursor:pointer;min-height:44px;display:flex;align-items:center}
.adslot{display:none}
button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
/* desktop: same column, slightly roomier */
@media (min-width:700px){
  h1{font-size:40px} .pv-cols{grid-template-columns:1fr 1fr} .plans{grid-template-columns:1fr 1fr}
  .journey{grid-template-columns:1fr 1fr} .journey .field:first-child{grid-column:1/-1}
  .seg-row{grid-template-columns:1fr 1fr} .seg-row .field:first-child{grid-column:auto}
  #modal{align-items:center;padding:20px} .sheet{border-radius:16px;padding:22px}
  nav.main{display:none} /* tabbar is the single nav, all widths */
}

/* ===========================================================================
   SwapSeat · mobile-first flow (the product designs)
   One accent, hairlines, 44px targets. Screens render into #flowScreen.
   =========================================================================== */
html.flow #classicShell{display:none!important}
html:not(.flow) #flow{display:none!important}
.fs-root{min-height:100dvh;display:flex;flex-direction:column;background:var(--paper);padding-bottom:calc(64px + env(safe-area-inset-bottom))}
.fs-top{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:10px;height:54px;padding:0 14px;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.fs-top b{font-size:16.5px;flex:1;text-align:center}
.fs-back{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:18px;cursor:pointer}
.fs-screen{flex:1;padding:0 0 8px}
.fs-body{padding:14px 14px 0}
.fs-head{padding:16px 14px 6px}
.fs-head h1{margin:0 0 2px;font-size:30px}
.fs-head h2{margin:2px 0 4px;font-size:21px}
.fs-head--home{background:linear-gradient(180deg,#f4f8ff,#fff);border-bottom:1px solid var(--line)}
.brand-row{display:flex;gap:10px;align-items:center}
.brand-mark{width:44px;height:44px;border-radius:12px;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px}
.tagline{font-size:13px;color:var(--mut);margin:8px 0 10px}
.fmuted{color:var(--mut);font-size:13.5px;margin:6px 0}
.fine{font-size:12px;color:var(--dim)}
.ferr{color:var(--bad);font-size:12.5px;margin:8px 0}
.safe-note{font-size:11.5px;color:var(--dim);margin:12px 0;padding:8px 10px;background:var(--wash);border:1px solid var(--line);border-radius:10px}
.fcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;margin:10px 0}
.fcard--booking{border-left:4px solid var(--blue)}
.fcard--ok{border:1px solid var(--ok)}
.fcard--ghost{background:var(--wash)}
.fcard--search{text-align:center;border-color:var(--blue)}
.frow{display:flex;align-items:center;gap:10px}
.frow--line{justify-content:space-between;border-bottom:1px solid var(--line);padding:8px 0;font-size:13.5px}
.fsub{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);font-weight:700;margin-bottom:6px}
.flabel{display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);font-weight:700;margin-bottom:5px}
.finput{width:100%;background:#fff;border:1px solid var(--hair);border-radius:12px;min-height:44px;padding:0 14px;font-size:16px;font-family:inherit}
.fgroup{margin:12px 0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;min-height:36px;padding:0 12px;font-size:12.5px;font-weight:600;cursor:pointer}
.chip.on{background:var(--blue);border-color:var(--blue);color:#fff}
.fpill{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;padding:4px 10px;font-size:11.5px;color:var(--mut);background:#fff}
.fbtn{border:1px solid var(--hair);background:var(--blue);border-color:var(--blue);color:#fff;border-radius:12px;min-height:46px;padding:0 18px;font-weight:700;font-size:15px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;flex:1}
.fbtn.ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.fbtn.block{width:100%;margin:6px 0}
.fbtn:disabled{opacity:.4;cursor:not-allowed}
.fs-actions{padding:8px 0 16px}
/* home */
.mode-tabs--flow{display:flex;gap:8px}
.mode-tabs--flow button{flex:1;border:1px solid var(--line);background:#fff;border-radius:12px;min-height:48px;font-weight:600;font-size:13px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px}
.mode-tabs--flow button span{font-size:11px}
.mode-tabs--flow button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.trust-row{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
.trust-row span{font-size:11.5px;color:var(--mut);background:var(--wash);border:1px solid var(--line);border-radius:999px;padding:5px 9px}
.fcard--notif{border-left:4px solid var(--warn)}
/* booking card */
.route{display:flex;align-items:center;gap:10px;font-size:19px;margin:10px 0 2px}
.rline{flex:1;height:2px;background:var(--line);border-radius:2px}
.times{display:flex;justify-content:space-between;font-size:12.5px;color:var(--dim);margin-bottom:10px}
.rarrow{color:var(--dim)}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--wash);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-weight:700;flex:none}
.cls-tabs{display:flex;gap:8px;margin:4px 0 10px}
.cls-tabs button{flex:1;border:1px solid var(--line);background:#fff;border-radius:999px;min-height:38px;font-size:12.5px;font-weight:700;cursor:pointer}
.cls-tabs button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.ftabs{display:flex;gap:8px;margin:10px 0}
.ftabs button{flex:1;border:1px solid var(--line);background:#fff;border-radius:999px;min-height:40px;font-size:13px;font-weight:700;cursor:pointer}
.ftabs button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
/* seat grid */
.seatgrid{background:var(--wash);border:1px solid var(--line);border-radius:14px;padding:10px;margin:8px 0}
.sgr{display:flex;gap:6px;align-items:center;justify-content:center;margin:4px 0}
.sgr--bay{justify-content:flex-start;flex-wrap:wrap}
.sgh{width:34px;text-align:center;font-size:10.5px;font-weight:700;color:var(--dim)}
.rno{width:30px;font-size:10.5px;color:var(--dim);font-weight:700;flex:none}
.seat{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:11.5px;font-weight:700;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;padding:0}
.seat i{font-style:normal;font-size:8px;color:var(--dim);font-weight:600}
.seat.mine{background:var(--blue);border-color:var(--blue);color:#fff}
.seat.mine i{color:#cfe0ff}
.seat.sel{outline:2px solid var(--volt);outline-offset:-1px;background:#e8fff4;border-color:var(--volt)}
.seat.sel i{color:#0a7a4d}
.legendrow{display:flex;flex-wrap:wrap;gap:10px;font-size:11.5px;color:var(--mut);margin:10px 0}
.lk{width:12px;height:12px;border-radius:4px;display:inline-block;margin-right:5px;vertical-align:-1px;border:1px solid var(--line)}
.lk-mine{background:var(--blue);border-color:var(--blue)}
.lk-sel{background:#e8fff4;border-color:var(--volt)}
.lk-other{background:#fff}
/* search/pay */
.big-amount{font-size:40px;font-weight:800;color:var(--ink)}
.big-amount .fine{display:block;font-size:12px;font-weight:600}
.checklist{margin:12px 0;text-align:left}
.ck{display:flex;gap:8px;align-items:flex-start;font-size:13.5px;color:var(--ink);padding:5px 0}
.cki{flex:none;width:20px;height:20px;border-radius:50%;background:#e8fff4;border:1px solid var(--volt);color:#0a7a4d;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;font-style:normal}
.search-orb{width:88px;height:88px;border-radius:50%;background:var(--wash);border:2px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:38px;margin:18px auto}
/* match cards */
.matchcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;margin:10px 0}
.mrow{display:flex;align-items:center;gap:10px}
.mrow+.mrow{margin-top:6px}
.mwho{flex:1;display:flex;flex-direction:column;gap:2px}
.mscore{font-size:15px;font-weight:800;color:var(--blue);background:#eef2ff;border-radius:999px;padding:4px 10px}
.mseat{font-weight:700;font-size:13.5px}
/* confirmed */
.big-ok{font-size:44px;text-align:center}
.seatpair{display:flex;gap:8px;align-items:stretch;margin:12px 0}
.sp{flex:1;background:var(--wash);border:1px solid var(--line);border-radius:12px;padding:10px;text-align:center}
.sp b{display:block;font-size:19px}
.sp--swap{flex:none;width:44px;background:var(--blue);color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center;border:0}
/* tabs in flow screens */
.steps-bar{display:flex;gap:4px;justify-content:center;margin:4px 0}
.steps-bar span{width:22px;height:4px;border-radius:2px;background:var(--line);font-size:0;overflow:hidden}
.steps-bar span.on{background:var(--blue)}
/* legacy shell hidden by default in flow mode */
.classic-shell[hidden]{display:none}
html:not(.flow) .classic-shell[hidden]{display:block}
@media (max-width:560px){
  .fs-body{padding:10px 12px 0}
  .fs-head{padding:14px 12px 4px}
  .big-amount{font-size:34px}
}
@media (prefers-reduced-motion:reduce){.search-orb{animation:none}}


/* M3 exchange screens */
.xp-fit { height: 8px; border-radius: 999px; background: #e8e2d5; overflow: hidden; margin: 8px 0 4px; }
.xp-fitbar { height: 100%; background: #1f7a4d; border-radius: 999px; }
.xp-why { background: none; border: none; color: #1f7a4d; font: inherit; text-decoration: underline; cursor: pointer; padding: 0 2px; }
.xp-whylist { border-top: 1px dashed #d8d2c5; margin-top: 6px; padding-top: 6px; }
.xp-w { color: #6b6557; font-size: 0.85em; }
.xp-sandbox { background: #b3541e; color: #fff; border-radius: 6px; padding: 2px 8px; font-size: 0.72rem; letter-spacing: 0.06em; }
.xp-searching { color: #1f7a4d; font-size: 0.85rem; }
.fgrid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }