/* Tokens from the app's FlowStyle.swift (current design). */
:root { --bg:#0C171A; --wash:#10252A; --surface:#172C2E; --raised:#203C3B; --accent:#78D3BD; --ink:#EDF5F0; --dim:#A0B6B0; --line:#29403F; --btn-ink:#102D24; }
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif;line-height:1.7;font-size:17px}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
.narrow{max-width:760px;margin:0 auto}
header{display:flex;align-items:center;justify-content:space-between;padding:20px 0;gap:12px}
header a.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;font-size:19px}
header a.brand img{width:36px;height:36px;border-radius:9px}
header nav a{color:var(--dim);text-decoration:none;font-size:14.5px;margin-left:16px}
h1{font-size:clamp(28px,4.6vw,40px);line-height:1.15;margin:18px 0 10px;text-align:center;letter-spacing:-.01em}
.lede{color:var(--dim);text-align:center;max-width:620px;margin:0 auto 22px}
h2{font-size:23px;margin:40px 0 12px}
p,li{color:rgba(237,245,240,.84);margin-bottom:12px}
ul,ol{padding-left:24px;margin-bottom:14px}
a{color:var(--accent)}
button{font:inherit;color:inherit}
svg{display:block}
/* Tool: the app's session screen */
#lb{--lb-color:#3D9A8B;--lb-bg:#000000;margin-bottom:22px}
.lb-stage{position:relative;height:clamp(460px,72vh,620px);border-radius:28px;background:var(--lb-bg);overflow:hidden;border:1px solid var(--line)}
.lb-track{position:absolute;left:16px;right:16px;top:0;bottom:150px}
.lb-ball{position:absolute;left:50%;top:50%;width:60px;height:60px;border-radius:50%;background:var(--lb-color);transform:translate(-50%,-50%)}
.lb-dots{position:absolute;left:50%;top:0;bottom:0;width:min(100%,700px);transform:translateX(-50%);display:none}
.lb-dots span{position:absolute;top:50%;transform:translate(-50%,-50%);border-radius:50%;background:var(--lb-color);opacity:.12}
#lb[data-style="bar"] .lb-ball{opacity:0}
#lb[data-style="bar"] .lb-dots{display:block}
.lb-stage:fullscreen{border-radius:0;border:0}
#lb.is-pseudo-fullscreen .lb-stage{position:fixed;inset:0;height:auto;z-index:50;border-radius:0}
/* Top bar */
.lb-top{position:absolute;left:14px;right:14px;top:14px;display:flex;align-items:center;justify-content:space-between;gap:10px;z-index:3}
.lb-top .group{display:flex;gap:10px}
.sq{width:48px;height:48px;border-radius:14px;background:#15282B;border:0;display:grid;place-items:center;cursor:pointer;color:var(--ink)}
.sq:hover{background:#1B3236}
.sq.play{background:var(--accent);color:var(--btn-ink)}
.sq .i-pause{display:none}
#lb.is-playing .sq.play .i-play{display:none}
#lb.is-playing .sq.play .i-pause{display:block}
.sq .stop{width:16px;height:16px;border-radius:3px;background:#A0B6B0}
.pill{min-width:72px;padding:6px 14px;border-radius:14px;background:#15282B;text-align:center;line-height:1.25;font-variant-numeric:tabular-nums}
.pill small{display:block;font-size:12.5px;color:var(--dim)}
.pill b{font-weight:500;font-size:16px}
#lb.is-done .pill{box-shadow:0 0 0 1.5px var(--accent) inset}
/* Bottom panel */
.lb-panel{position:absolute;left:12px;right:12px;bottom:12px;background:#0E1B1E;border-radius:22px;padding:14px 18px 8px;z-index:3}
.lb-values{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.lb-value{display:block;text-align:left;background:none;border:0;cursor:pointer;padding:0}
.lb-value .label{display:flex;align-items:center;gap:8px;color:var(--dim);font-size:15px}
.lb-value .label svg:last-child{margin-left:auto}
.lb-value .num{display:block;font-size:26px;font-weight:500;line-height:1.3;color:var(--ink);font-variant-numeric:tabular-nums}
.lb-tabs{display:grid;grid-template-columns:repeat(4,1fr);padding-top:8px}
.tab{background:none;border:0;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 0 8px;color:var(--dim);font-size:13.5px;position:relative;text-decoration:none}
.tab svg{color:var(--ink)}
.tab[aria-pressed="true"]::after,.tab[aria-expanded="true"]::after{content:"";position:absolute;bottom:0;width:28px;height:3px;border-radius:2px;background:var(--accent)}
.tab .i-on{display:none}
.tab[aria-pressed="true"] .i-on{display:block}
.tab[aria-pressed="true"] .i-off{display:none}
/* Sheets */
.sheet{position:absolute;left:0;right:0;bottom:0;max-height:100%;overflow:auto;background:linear-gradient(180deg,#132A2E,#0F2124);border-radius:28px 28px 0 0;padding:10px 22px 22px;z-index:5;box-shadow:0 -20px 40px rgba(0,0,0,.45)}
.sheet[hidden]{display:none}
.grab{width:38px;height:5px;border-radius:3px;background:#3A5250;margin:0 auto 10px}
.sheet-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.sheet-head h3{font-size:24px;font-weight:600}
.x{background:none;border:0;cursor:pointer;color:var(--dim);padding:6px}
.row-label{display:flex;justify-content:space-between;font-size:17px;margin:14px 0 8px}
.row-label span:last-child{color:var(--dim)}
input[type=range]{width:100%;accent-color:var(--accent);height:28px}
.choices{display:flex;flex-wrap:wrap;gap:8px}
.choice{background:#15282B;border:1px solid var(--line);border-radius:12px;padding:9px 14px;cursor:pointer;font-size:15px;color:var(--ink);text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.choice[aria-pressed="true"]{border-color:var(--accent);color:var(--accent)}
.choice.locked{color:var(--dim);border-style:dashed}
.choice.locked em{font-style:normal;color:var(--accent);font-size:13px}
.swatches{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.sw{width:44px;height:44px;border-radius:50%;border:0;cursor:pointer;display:grid;place-items:center;position:relative}
.sw.bgsw{border:1px solid #3A5250}
.sw[aria-pressed="true"]{box-shadow:0 0 0 3px #0F2124,0 0 0 5px var(--accent)}
.sw svg{display:none;color:#0C171A}
.sw.bgsw svg{color:var(--ink)}
.sw[aria-pressed="true"] svg{display:block}
.primary{display:block;width:100%;margin-top:22px;background:var(--accent);color:var(--btn-ink);border:0;border-radius:16px;padding:15px;font-size:18px;font-weight:600;cursor:pointer;text-align:center;text-decoration:none}
.sheet p.note{color:var(--dim);font-size:15px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.lb-hint{font-size:13.5px;color:var(--dim);text-align:center;margin:10px 0 0}
/* Page CTAs and content */
.ctas{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:6px 0 10px}
.btn{display:inline-block;background:var(--accent);color:var(--btn-ink);text-decoration:none;font-weight:600;padding:13px 26px;border-radius:16px}
.btn.secondary{background:transparent;border:1px solid var(--line);color:var(--ink)}
.app{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:26px;margin:34px 0}
.app h2{margin-top:0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:14px 0 20px}
.grid div{background:var(--wash);border:1px solid var(--line);border-radius:14px;padding:14px}
.grid strong{display:block;margin-bottom:4px}
.grid p{font-size:15px;margin:0}
details{border-bottom:1px solid var(--line);padding:12px 0}
summary{cursor:pointer;font-weight:600}
details p{margin-top:8px}
.safety{font-size:14.5px;color:var(--dim);border-left:3px solid var(--line);padding-left:12px;margin:26px 0}
footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;padding:30px 0 40px;border-top:1px solid var(--line);color:var(--dim);font-size:14px;margin-top:40px}
footer a{color:var(--dim)}
@media (max-width:560px){header nav a.hide-sm{display:none}.sq{width:44px;height:44px}.lb-value .num{font-size:22px}.tab{font-size:12px}}
/* Left / right cue (butterfly hug) */
.lb-cue{position:absolute;left:0;right:0;top:78px;text-align:center;font-size:clamp(22px,4vw,34px);font-weight:600;color:var(--lb-color);letter-spacing:.02em;z-index:2;pointer-events:none;min-height:1.3em}
/* Closing CTA, embed, related */
.closing{text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:30px 20px;margin:40px 0}
.closing h2{margin:0 0 8px}
.closing p{color:var(--dim);margin-bottom:18px}
.embed-code{display:flex;gap:10px;align-items:stretch;flex-wrap:wrap}
.embed-code code{flex:1 1 320px;display:block;background:#071012;border:1px solid var(--line);border-radius:12px;padding:12px;font-size:13px;color:var(--dim);overflow-x:auto;white-space:nowrap}
.copy{background:var(--raised);color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:0 18px;cursor:pointer;min-height:44px}
.related{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:12px 0}
.related a{display:block;background:var(--wash);border:1px solid var(--line);border-radius:14px;padding:14px;text-decoration:none;color:var(--ink)}
.related a span{display:block;color:var(--dim);font-size:14px}
/* Embed page */
body.embed{background:transparent}
body.embed #lb{margin:0}
body.embed .lb-stage{height:100vh;border-radius:0;border:0}
.powered{position:absolute;right:16px;bottom:-1px;transform:translateY(100%);font-size:12px}
body.embed .lb-panel{bottom:34px}
body.embed .powered{position:fixed;left:0;right:0;bottom:0;transform:none;text-align:center;padding:6px;background:#0C171A;font-size:12.5px;z-index:9}
body.embed .powered a{color:var(--accent);text-decoration:none}
/* Printable worksheets */
.sheet-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:0 0 20px}
.paper{background:#fff;color:#111;border-radius:12px;padding:32px;max-width:820px;margin:0 auto 10px;font-size:14.5px;line-height:1.5}
.paper h2{font-size:20px;margin:0 0 4px;color:#111}
.paper .sub{color:#555;font-size:13px;margin-bottom:16px}
.paper h3{font-size:15px;margin:18px 0 8px;color:#111;border-bottom:1px solid #ddd;padding-bottom:4px}
.paper p,.paper li{color:#222;margin:0}
.field{display:flex;gap:10px;align-items:flex-end;margin:10px 0}
.field b{font-weight:600;white-space:nowrap}
.field span{flex:1;border-bottom:1px solid #999;min-height:1.4em}
.lines span{display:block;border-bottom:1px solid #bbb;height:26px}
.scale{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin:6px 0}
.scale i{font-style:normal;width:28px;height:28px;border:1.5px solid #444;border-radius:50%;display:grid;place-items:center;font-size:12.5px}
.scale small{color:#555;font-size:12px}
.paper table{width:100%;border-collapse:collapse;margin-top:6px}
.paper th,.paper td{border:1px solid #bbb;padding:6px 8px;text-align:left;font-size:13px;height:30px}
.paper th{background:#f2f2f2}
.checks{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:6px}
.checks label::before{content:"";display:inline-block;width:13px;height:13px;border:1.5px solid #444;border-radius:3px;margin-right:8px;vertical-align:-2px}
.paper .foot{margin-top:22px;color:#777;font-size:11.5px;text-align:center}
@media print{
  @page{margin:12mm}
  body{background:#fff}
  body *{visibility:hidden}
  .paper,.paper *{visibility:visible}
  .paper{position:absolute;left:0;top:0;width:100%;max-width:none;padding:0;border-radius:0}
}