/* JF Go lab. Jamie Fitness design language (loose): Inter, soft white tiles on #F5F7FB, one colour per meaning. */
:root {
  --ink: #222326; --ink2: rgba(31,32,37,.60); --ink3: rgba(31,32,37,.38); --cap: #8A8F99;
  --canvas: #F5F7FB; --card: #EBF0F8; --tile: #FFFFFF; --dark: #1F2025; --track: #E7EBF2; --hair: #ECEEF2;
  --ok: #3f9a12; --okbg: rgba(139,212,42,.16); --warn: #b86b00; --warnbg: rgba(245,165,36,.16); --bad: #d8431f; --badbg: rgba(255,94,58,.12); --info: #2f7fd6; --infobg: rgba(77,163,255,.13);
  --ease: cubic-bezier(.2,.7,.2,1);
  --float: 0 16px 40px -18px rgba(30,40,70,.35);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: 500 15px/1.45 Inter, -apple-system, system-ui, sans-serif; font-feature-settings: "cv11", "ss01"; }
@supports (font-variation-settings: normal) { body { font-family: InterVariable, Inter, -apple-system, system-ui, sans-serif; } }
h1, h2, h3 { margin: 0; letter-spacing: -.025em; line-height: 1.05; }
h1 { font-size: 40px; font-weight: 700; }
h3 { font-size: 18px; font-weight: 650; margin-bottom: 8px; }
p { margin: 0 0 10px; }
ul { margin: 0; padding-left: 18px; } li { margin: 4px 0; }
b { font-weight: 650; }
.muted { color: var(--ink2); font-size: 14px; }

/* top bar */
.top { position: sticky; top: 0; z-index: 20; background: rgba(245,247,251,.72); -webkit-backdrop-filter: blur(24px) saturate(1.6); backdrop-filter: blur(24px) saturate(1.6); }
.top-in { max-width: 1380px; margin: 0 auto; padding: 10px 24px; display: flex; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -.02em; font-size: 17px; white-space: nowrap; }
.mark { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: #141742; color: #caeafb; font-size: 12px; font-weight: 800; letter-spacing: 0; }
.top-note { color: var(--ink2); font-size: 13px; flex: 1; }

/* layout */
.wrap { max-width: 1380px; margin: 0 auto; padding: 20px 24px 60px; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 40px; align-items: start; }
.stage { position: sticky; top: 70px; display: grid; justify-items: center; gap: 12px; }
.phone { width: 390px; height: min(844px, calc(100vh - 200px)); min-height: 520px; border-radius: 48px; padding: 10px; background: #111216; box-shadow: var(--float), inset 0 0 0 2px #2a2b31; }
.phone iframe { width: 100%; height: 100%; border: 0; border-radius: 39px; background: #fff; display: block; }
.strip { width: 390px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 5px; }
.strip-cell { background: var(--tile); border-radius: 14px; padding: 8px 12px; box-shadow: 0 1px 0 rgba(0,0,0,.03); min-width: 0; }
.strip-cell .k { display: block; font-size: 11px; color: var(--cap); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.strip-cell .v { display: block; font-size: 13px; font-weight: 650; letter-spacing: -.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.walkbar { width: 390px; display: flex; align-items: center; justify-content: space-between; gap: 10px; background: var(--dark); color: #EBF0F8; border-radius: 14px; padding: 8px 8px 8px 14px; font-weight: 600; }
.walkbar .btn { background: #EBF0F8; color: var(--dark); }
.grow { display: none; }

.side { min-width: 0; }
.hero { padding: 6px 0 18px; }
.hero p { color: var(--ink2); font-size: 17px; max-width: 640px; margin-top: 10px; }

/* segmented control */
.seg { display: grid; grid-template-columns: repeat(4, 1fr); background: #E9EDF3; border-radius: 14px; padding: 3px; gap: 2px; position: sticky; top: 56px; z-index: 10; margin-bottom: 14px; box-shadow: 0 -12px 0 6px var(--canvas), 0 8px 14px -6px rgba(245,247,251,.95); }
.seg button { border: 0; background: transparent; border-radius: 11px; padding: 9px 4px; font: 600 14px Inter, -apple-system, sans-serif; color: var(--ink2); cursor: pointer; transition: background .25s var(--ease), color .25s var(--ease); }
.seg button[aria-selected="true"] { background: var(--dark); color: #fff; }

.panel { animation: rise .5s var(--ease); }
@keyframes rise { from { opacity: 0; transform: translateY(10px); filter: blur(4px); } }
.card { background: var(--tile); border-radius: 22px; padding: 18px 18px 16px; box-shadow: 0 1px 0 rgba(0,0,0,.03); margin-bottom: 10px; }
.how .card p:last-child, .how .card ul:last-child { margin-bottom: 0; }
.how .big { font-size: 30px; font-weight: 700; letter-spacing: -.03em; line-height: 1; margin: 2px 0 10px; }
.tbl { width: 100%; border-collapse: collapse; font-size: 14px; margin: 4px 0 10px; }
.tbl th, .tbl td { text-align: left; padding: 8px 8px 8px 0; border-bottom: 1px solid var(--hair); vertical-align: top; }
.tbl th { font-size: 12px; color: var(--cap); font-weight: 600; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 10px; }

/* buttons */
.btn { border: 0; border-radius: 12px; background: var(--dark); color: #EBF0F8; font: 600 14px Inter, -apple-system, sans-serif; padding: 10px 14px; cursor: pointer; transition: transform .2s var(--ease), opacity .2s; white-space: nowrap; }
.btn:hover { transform: scale(1.03); } .btn:active { transform: scale(.98); }
.btn.ghost { background: #EEF1F6; color: var(--ink); }
.btn.small { padding: 7px 11px; font-size: 13px; border-radius: 10px; }
.btn[disabled] { opacity: .45; cursor: default; transform: none; }
.btns { display: flex; flex-wrap: wrap; gap: 6px; }

/* scenario cards */
.sc-group { font-size: 13px; font-weight: 650; color: var(--cap); margin: 18px 4px 8px; }
.sc-group:first-child { margin-top: 0; }
.sc { display: grid; grid-template-columns: 36px minmax(0,1fr); gap: 12px; }
.sc-icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; font-size: 18px; }
.sc h3 { font-size: 17px; margin-bottom: 4px; }
.sc .what { color: var(--ink2); font-size: 14px; margin-bottom: 10px; }
.sc .look { font-size: 14px; background: var(--canvas); border-radius: 12px; padding: 9px 11px; margin: 10px 0 0; }
.sc .look b { font-weight: 650; }
.sc .result { margin-top: 8px; font-size: 14px; border-radius: 12px; padding: 9px 11px; display: none; }
.sc .result.on { display: block; animation: rise .4s var(--ease); }
.result.ok { background: var(--okbg); } .result.warn { background: var(--warnbg); } .result.bad { background: var(--badbg); } .result.info { background: var(--infobg); }
.result .lbl { font-weight: 700; }

/* controls */
.ctl h3 { margin-bottom: 4px; }
.ctl .hint { color: var(--ink2); font-size: 13px; margin-bottom: 10px; }
.ctl .line { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 0; border-top: 1px solid var(--hair); }
.ctl .line:first-of-type { border-top: 0; }
.ctl .line .t { font-weight: 600; } .ctl .line .s { color: var(--ink2); font-size: 13px; }
.mini-seg { display: inline-grid; grid-auto-flow: column; background: #E9EDF3; border-radius: 10px; padding: 2px; gap: 2px; }
.mini-seg button { white-space: nowrap; border: 0; background: transparent; border-radius: 8px; padding: 6px 10px; font: 600 13px Inter, -apple-system, sans-serif; color: var(--ink2); cursor: pointer; }
.mini-seg button[aria-pressed="true"] { background: var(--dark); color: #fff; }
select.sel { font: 600 14px Inter, -apple-system, sans-serif; color: var(--ink); background: #EEF1F6; border: 0; border-radius: 10px; padding: 8px 10px; max-width: 100%; }
input[type=range] { width: 100%; accent-color: var(--dark); }
.sw { position: relative; width: 51px; height: 31px; flex: none; border-radius: 16px; background: #E1E5EC; border: 0; cursor: pointer; transition: background .25s var(--ease); }
.sw::after { content: ""; position: absolute; top: 2px; left: 2px; width: 27px; height: 27px; border-radius: 50%; background: #fff; box-shadow: 0 2px 6px rgba(0,0,0,.18); transition: transform .25s var(--ease); }
.sw[aria-checked="true"] { background: #34c759; } .sw[aria-checked="true"]::after { transform: translateX(20px); }
.drops-tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.drops-tbl td { padding: 8px 6px 8px 0; border-top: 1px solid var(--hair); vertical-align: middle; }
.drops-tbl tr:first-child td { border-top: 0; }
.drops-tbl .pl { font-weight: 600; } .drops-tbl .sub { color: var(--ink2); font-size: 12px; }
.drops-tbl .act { text-align: right; white-space: nowrap; }
.drops-tbl .act .btn { margin-left: 4px; }
.pad { display: grid; grid-template-columns: repeat(3, 44px); gap: 4px; }
.pad .btn { padding: 8px 0; }

/* server log */
.log { list-style: none; margin: 8px 0 0; padding: 0; font-size: 13px; }
.log li { display: grid; grid-template-columns: 62px 104px minmax(0, 1fr); gap: 8px; padding: 8px 0; border-top: 1px solid var(--hair); }
.log .tm { color: var(--cap); font-variant-numeric: tabular-nums; }
.log .rt { font-weight: 650; }
.log .ok { color: var(--ok); } .log .warn { color: var(--warn); } .log .bad { color: var(--bad); }
.log .msg { color: var(--ink2); }

.toast { position: fixed; left: 50%; bottom: 22px; transform: translate(-50%, 20px); opacity: 0; background: var(--dark); color: #fff; border-radius: 14px; padding: 11px 16px; font-weight: 600; font-size: 14px; box-shadow: var(--float); transition: all .35s var(--ease); pointer-events: none; z-index: 50; max-width: calc(100vw - 32px); }
.toast.on { opacity: 1; transform: translate(-50%, 0); }
.foot { color: var(--cap); font-size: 12px; margin-top: 24px; }

/* phones and narrow windows: the app stays on screen at the top, everything else scrolls under it */
@media (max-width: 980px) {
  .top-note { display: none; }
  .top-in { padding: 0 14px; height: 48px; }
  .wrap { grid-template-columns: 1fr; padding: 0 10px 40px; gap: 14px; }
  .stage { position: sticky; top: 48px; z-index: 15; background: var(--canvas); padding: 6px 0 8px; gap: 6px; }
  .phone { width: 100%; height: 46svh; min-height: 0; border-radius: 26px; padding: 4px; }
  .phone.tall { height: 80svh; }
  .phone iframe { border-radius: 22px; }
  .strip { width: 100%; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 4px; }
  .strip-cell { padding: 5px 8px; border-radius: 10px; }
  .strip-cell .k { font-size: 10px; } .strip-cell .v { font-size: 12.5px; }
  .walkbar { width: 100%; }
  .hero { display: none; }
  .seg { top: var(--seg-top, 48px); }
  .top { background: var(--canvas); }
  .grow { display: block; position: static; padding: 6px 10px; font-size: 13px; margin-left: auto; }
  h1 { font-size: 32px; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }
[hidden] { display: none !important; }
.card.found { box-shadow: inset 0 0 0 2px rgba(245,165,36,.45); }

/* the tour */
b.blue { color: #2f7fd6; }
#tour { scroll-margin-top: 120px; }
.t-loop { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 6px; margin-bottom: 10px; }
.t-tile { border: 0; text-align: left; background: var(--tile); border-radius: 16px; padding: 10px 11px; cursor: pointer; display: grid; gap: 2px; font: inherit; color: var(--ink); box-shadow: 0 1px 0 rgba(0,0,0,.03); transition: background .25s var(--ease), color .25s var(--ease), transform .2s var(--ease); }
.t-tile:hover { transform: translateY(-1px); }
.t-tile-n { font-size: 12px; font-weight: 700; color: var(--cap); }
.t-tile-t { font-size: 14px; font-weight: 650; letter-spacing: -.01em; line-height: 1.15; }
.t-tile-s { font-size: 12px; color: var(--ink2); line-height: 1.2; }
.t-tile.on { background: var(--dark); color: #fff; }
.t-tile.on .t-tile-n, .t-tile.on .t-tile-s { color: rgba(235,240,248,.7); }
.t-step { padding: 22px 22px 18px; }
.t-kick { font-size: 13px; font-weight: 650; color: var(--cap); margin-bottom: 6px; }
.t-step h2 { font-size: 30px; font-weight: 700; margin-bottom: 14px; }
.t-body { font-size: 16px; max-width: 680px; }
.t-body p, .t-body ul { margin: 0 0 10px; }
.t-body .big { font-size: 32px; font-weight: 700; letter-spacing: -.03em; line-height: 1; margin: 4px 0 12px; }
.t-live { margin: 6px 0 4px; }
.t-drops td:nth-child(2), .t-drops td:nth-child(3) { white-space: nowrap; }
.t-doing { margin-top: 16px; border-top: 1px solid var(--hair); padding-top: 14px; }
.t-doing-h { font-size: 13px; font-weight: 650; color: var(--cap); margin-bottom: 8px; }
.t-do { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 10px; padding: 8px 0; }
.t-n { width: 26px; height: 26px; border-radius: 50%; background: var(--canvas); display: grid; place-items: center; font-size: 13px; font-weight: 700; color: var(--ink2); }
.t-do-t { font-weight: 650; margin: 3px 0 6px; }
.t-do .muted { margin: -2px 0 8px; font-size: 13px; }
.t-now { display: none; margin-top: 12px; border-radius: 14px; padding: 11px 13px; font-size: 15px; }
.t-now.on { display: block; animation: rise .35s var(--ease); }
.t-now.ok, .res.ok { background: var(--okbg); } .t-now.warn, .res.warn { background: var(--warnbg); } .t-now.bad, .res.bad { background: var(--badbg); } .t-now.info { background: var(--infobg); }
.t-compare td { vertical-align: middle; font-size: 14px; }
.t-compare td.res { border-radius: 0; font-size: 13px; min-width: 200px; }
.t-compare td.res.ok, .t-compare td.res.warn, .t-compare td.res.bad { padding-left: 10px; }
.t-cheats { display: grid; gap: 8px; }
.t-cheat { background: var(--canvas); border-radius: 14px; padding: 11px 12px; }
.t-cheat.found { box-shadow: inset 0 0 0 2px rgba(245,165,36,.45); }
.t-cheat-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.t-cheat-top .muted { font-size: 13px; }
.t-cheat .res { font-size: 14px; border-radius: 10px; margin-top: 8px; }
.t-cheat .res:empty { display: none; }
.t-cheat .res.ok, .t-cheat .res.warn, .t-cheat .res.bad { padding: 8px 10px; }
.t-cheat .note { color: var(--ink2); margin-top: 4px; font-size: 13px; }
.t-pic { margin: 6px 0 4px; display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 14px; align-items: center; }
.t-pic svg { width: 100%; height: auto; }
.t-key { display: grid; gap: 8px; font-size: 14px; }
.t-key span { display: flex; align-items: center; gap: 8px; }
.t-key i { width: 18px; height: 16px; border-radius: 4px; flex: none; }
.t-crates { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 8px 0 4px; }
.t-crate { border-radius: 16px; padding: 12px; display: grid; gap: 2px; }
.t-crate.small { background: var(--infobg); } .t-crate.big { background: var(--okbg); } .t-crate.gold { background: var(--warnbg); }
.t-crate .big { font-size: 24px; font-weight: 700; letter-spacing: -.02em; }
.t-crate small { color: var(--ink2); font-size: 12px; }
.t-turn { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.t-deg { font-weight: 650; min-width: 40px; text-align: right; font-variant-numeric: tabular-nums; }
.t-nav { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 8px; align-items: center; margin: 4px 0 10px; }
.t-nav .sel { width: 100%; }
.t-step .how .card { background: var(--canvas); }
@media (max-width: 980px) {
  #tour { scroll-margin-top: calc(var(--seg-top, 48px) + 56px); }
  .t-loop { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .t-step { padding: 18px 16px 14px; }
  .t-step h2 { font-size: 24px; }
  .t-body { font-size: 15px; }
  .t-pic { grid-template-columns: 1fr; }
  .t-compare tr:first-child { display: none; }
  .t-compare tr { display: grid; grid-template-columns: minmax(0, 1fr) auto; border-bottom: 1px solid var(--hair); padding: 6px 0; }
  .t-compare td { border-bottom: 0; }
  .t-compare td.res { grid-column: 1 / -1; min-width: 0; border-radius: 10px; padding: 8px 10px; }
  .t-compare td.res:has(.muted) { display: none; }
  .t-loop { gap: 4px; }
  .t-tile { padding: 7px 9px; border-radius: 12px; }
  .t-tile-s { display: none; }
  .t-tile-t { font-size: 13px; }
  .seg button { white-space: nowrap; font-size: 13px; }
  .t-crates .big { font-size: 20px; }
}