:root{
  --bg:#f4f8f8;--card:#fff;--ink:#14282b;--mute:#566b6e;--line:#d6e2e3;
  --brand:#00a3ad;--strong:#007c85;--on-strong:#fff;--soft:#e2f3f4;
  --warn:#b36b00;--ok:#0a7d33;
  --deep:#06363a;--deep-ink:#e8f6f7;--deep-mute:#a9cfd2;--deep-line:#1c5a60;
  --head:"Bricolage Grotesque",system-ui,sans-serif;
  --body:"Figtree",system-ui,sans-serif;
  box-sizing:border-box;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0e1a1c;--card:#16272a;--ink:#e8f1f2;--mute:#9bb2b5;--line:#264045;
    --brand:#2bc4cf;--strong:#2bc4cf;--on-strong:#04282b;--soft:#143236;
    --warn:#f0b04a;--ok:#4cd07f;
    --deep:#0a2b2e;--deep-ink:#e8f6f7;--deep-mute:#9bc3c6;--deep-line:#1f4f54;
  }
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-behavior:smooth;scroll-padding-top:5rem}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.55 var(--body);-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--head);font-weight:700;line-height:1.1;margin:0;letter-spacing:-.015em}
p{margin:0}
a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 1.25rem}
.narrow{max-width:760px}
.skip{position:absolute;left:-999px;top:0;background:var(--strong);color:var(--on-strong);padding:.6rem 1rem;z-index:50;border-radius:0 0 8px 0}
.skip:focus{left:0}
:focus-visible{outline:3px solid var(--brand);outline-offset:3px;border-radius:6px}

/* ---------- Buttons ---------- */
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;font:600 1rem/1 var(--body);text-decoration:none;border-radius:999px;padding:.8rem 1.25rem;border:1.5px solid transparent;cursor:pointer;transition:background .15s,border-color .15s}
.btn.solid{background:var(--strong);color:var(--on-strong)}
.btn.solid:hover{filter:brightness(1.08)}
.btn.ghost{border-color:var(--line);background:transparent;color:var(--ink)}
.btn.ghost:hover{border-color:var(--strong)}
.btn.big{padding:1rem 1.6rem;font-size:1.05rem}
.btn[disabled]{opacity:.6;cursor:wait}

/* ---------- Header ---------- */
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
.nav{display:flex;align-items:center;gap:1.5rem;min-height:4rem}
.brand{display:inline-flex;align-items:center;gap:.55rem;text-decoration:none;font:700 1.35rem/1 var(--head)}
.mark{width:1.9rem;height:1.9rem;flex:none}
.mark rect{fill:var(--strong)}
.mark path{fill:none;stroke:var(--on-strong);stroke-width:2.4;stroke-linecap:round}
.links{display:flex;gap:1.4rem;margin-left:1rem}
.links a{text-decoration:none;color:var(--mute);font-weight:500}
.links a:hover{color:var(--ink)}
.actions{display:flex;gap:.6rem;margin-left:auto}
.actions .btn{padding:.6rem 1.05rem}

/* ---------- Hero ---------- */
.hero{display:grid;grid-template-columns:1fr;gap:2.5rem;padding-top:3rem;padding-bottom:3.5rem;align-items:center}
.hero h1{font-size:clamp(2.3rem,6vw,3.7rem);max-width:16ch}
.lede{margin-top:1.4rem;font-size:1.2rem;color:var(--mute);max-width:34rem}
.cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.note{margin-top:1.2rem;color:var(--mute);font-size:.95rem;max-width:32rem}
@media (min-width:960px){
  .hero{grid-template-columns:1.05fr 1fr;gap:3rem;padding-top:4.5rem;padding-bottom:5rem}
}

/* The one memorable thing: a table paying itself */
.stage-wrap{margin:0}
.stage-wrap figcaption{margin-top:.9rem;color:var(--mute);font-size:.9rem;text-align:center}
.stage{position:relative;display:grid;grid-template-columns:1fr;gap:1rem;max-width:560px;margin:0 auto;padding:1rem;background:var(--soft);border-radius:28px}
.board{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:1rem}
.board-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.8rem}
.board-head span{color:var(--mute);font-size:.85rem}
.tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:.55rem}
.tile{display:flex;flex-direction:column;gap:.1rem;border:1.5px solid var(--line);border-radius:12px;padding:.55rem .65rem;font-size:.8rem;background:var(--bg);min-height:4.4rem;transition:background .35s,border-color .35s}
.tile b{font:700 1.15rem/1 var(--head)}
.tile span{color:var(--mute)}
.tile i{font-style:normal;font-weight:600}
.tile.open{border-color:var(--brand)}
.tile.paid{background:color-mix(in srgb,var(--ok) 16%,var(--card));border-color:var(--ok)}
.tile.paid span{color:var(--ok);font-weight:600}
.tile.ask{border-color:var(--brand);background:color-mix(in srgb,var(--brand) 22%,var(--card))}
.tile.help{border-color:var(--warn)}
.tile.help span{color:var(--warn);font-weight:600}
.tile.empty{border-style:dashed}

.phone-mock{position:relative;background:var(--card);border:2px solid var(--line);border-radius:26px;padding:1.1rem 1.1rem 1.2rem;overflow:hidden}
.ph-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.7rem}
.ph-top span:first-child{font:700 1.1rem/1 var(--head)}
.ph-brand{color:var(--strong);font-weight:600;font-size:.9rem}
.ph-lines p{display:flex;justify-content:space-between;gap:1rem;font-size:.92rem;padding:.2rem 0}
.ph-lines p.sm{color:var(--mute);font-size:.85rem}
.ph-total{display:flex;justify-content:space-between;align-items:baseline;border-top:1px solid var(--line);margin-top:.5rem;padding-top:.6rem}
.ph-total b{font:700 1.6rem/1 var(--head)}
.ph-pay{display:grid;gap:.5rem;margin-top:.9rem}
.ph-btn{text-align:center;font-weight:600;font-size:.95rem;border-radius:12px;padding:.75rem;background:var(--strong);color:var(--on-strong);transition:transform .2s,filter .2s}
.ph-btn.alt{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.ph-done{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.35rem;background:var(--card);opacity:0;pointer-events:none;transition:opacity .35s}
.ph-done svg{width:3.2rem;height:3.2rem;padding:.7rem;border-radius:50%;background:var(--ok);fill:none;stroke:#fff;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.ph-done b{font:700 1.25rem/1.1 var(--head);margin-top:.4rem;text-align:center}
.ph-done span{color:var(--mute);font-size:.9rem}

.stage[data-state="paying"] .ph-btn:first-of-type{transform:scale(.96);filter:brightness(.9)}
.stage[data-state="paid"] .ph-done{opacity:1}
.stage[data-state="paid"] #t5{background:color-mix(in srgb,var(--ok) 16%,var(--card));border-color:var(--ok)}
.stage[data-state="paid"] #t5 span{color:var(--ok);font-weight:600}
@media (min-width:560px){
  .stage{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;padding:1.4rem}
  .phone-mock{margin:0}
}
@media (min-width:960px){
  .stage{max-width:none}
}

/* ---------- Steps ---------- */
.how{background:var(--card);border-block:1px solid var(--line);padding:4.5rem 0}
h2{font-size:clamp(1.9rem,4.2vw,2.7rem)}
.steps{list-style:none;counter-reset:s;margin:2.6rem 0 0;padding:0;display:grid;gap:0;border-top:2px solid var(--ink)}
.steps li{counter-increment:s;padding:1.6rem 0 1.8rem;border-bottom:1px solid var(--line);display:grid;gap:.5rem}
.steps li::before{content:counter(s);font:700 2.6rem/1 var(--head);color:var(--strong)}
.steps h3{font-size:1.4rem}
.steps p{color:var(--mute);max-width:32rem}
@media (min-width:860px){
  .steps{grid-template-columns:repeat(3,1fr);column-gap:2.4rem;border-bottom:0}
  .steps li{border-bottom:0;padding-top:1.4rem}
}

/* ---------- Features ---------- */
.feat{padding:5rem 0}
.flist{margin-top:2.4rem;display:grid;grid-template-columns:1fr;border-top:1px solid var(--line)}
.flist>div{padding:1.4rem 0;border-bottom:1px solid var(--line)}
.flist h3{font-size:1.2rem;margin-bottom:.4rem}
.flist p{color:var(--mute);max-width:34rem}
@media (min-width:860px){
  .flist{grid-template-columns:1fr 1fr;column-gap:4rem}
}

/* ---------- Money ---------- */
.money{background:var(--deep);color:var(--deep-ink);padding:4.5rem 0}
.money-grid{display:grid;gap:2.4rem}
.money h2{max-width:14ch}
.money p{margin-top:1.1rem;color:var(--deep-mute);max-width:30rem;font-size:1.1rem}
.money ul{list-style:none;margin:0;padding:0;display:grid;gap:0}
.money li{padding:1.1rem 0;border-top:1px solid var(--deep-line);display:grid;gap:.25rem}
.money li:last-child{border-bottom:1px solid var(--deep-line)}
.money li b{font:700 1.15rem/1.2 var(--head)}
.money li span{color:var(--deep-mute)}
@media (min-width:860px){.money-grid{grid-template-columns:1fr 1fr;gap:4rem;align-items:center}}

/* ---------- Demo form ---------- */
.demo{display:grid;gap:2.2rem;padding-top:5rem;padding-bottom:5rem}
.demo-text p{margin-top:1rem;color:var(--mute);max-width:30rem}
.demo-form{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:1.5rem;display:grid;gap:1rem}
.demo-form label{display:grid;gap:.35rem;font-weight:600;font-size:.95rem}
.opt{font-weight:400;color:var(--mute)}
.demo-form input,.demo-form textarea{font:400 1rem/1.4 var(--body);color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:10px;padding:.7rem .8rem;width:100%;min-width:0}
.demo-form textarea{resize:vertical;min-height:7rem}
.demo-form input:focus,.demo-form textarea:focus{outline:none;border-color:var(--strong);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 30%,transparent)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.demo-form .btn{width:100%}
.form-msg{min-height:1.4rem;font-weight:600}
.form-msg.err{color:var(--warn)}
.form-msg.ok{color:var(--ok)}
.fine{color:var(--mute);font-size:.85rem}
.demo-form.sent>*:not(.form-msg):not(.fine){display:none}
@media (min-width:900px){.demo{grid-template-columns:1fr 1.1fr;gap:4rem;align-items:start}}

/* ---------- FAQ ---------- */
.faq{padding:0 0 5rem}
.faq .narrow{max-width:1120px}
.faq h2{margin-bottom:1.6rem}
.faq details{border-top:1px solid var(--line);max-width:760px}
.faq details:last-of-type{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:1.1rem 2rem 1.1rem 0;font-weight:600;font-size:1.08rem;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:.2rem;top:.85rem;font-size:1.5rem;font-weight:400;color:var(--strong);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--mute);padding:0 2rem 1.2rem 0;max-width:40rem}

/* ---------- Footer ---------- */
.foot{border-top:1px solid var(--line);background:var(--card);padding:2.4rem 0 calc(2rem + env(safe-area-inset-bottom,0px))}
.foot-row{display:flex;flex-wrap:wrap;gap:1.6rem;justify-content:space-between;align-items:flex-start}
.foot p{margin-top:.7rem;color:var(--mute);max-width:22rem}
.foot-links{display:flex;gap:1.4rem;flex-wrap:wrap}
.foot-links a{text-decoration:none;color:var(--mute);font-weight:500}
.foot-links a:hover{color:var(--ink)}
.foot .fine{margin-top:1.6rem}

/* ---------- Small screens ---------- */
@media (max-width:759px){
  .links{display:none}
  .nav{gap:.5rem}
  .brand{font-size:1.2rem}
  .mark{width:1.65rem;height:1.65rem}
  .actions{gap:.4rem}
  .actions .btn{padding:.55rem .8rem;font-size:.92rem}
}
@media (max-width:360px){
  .actions .btn.ghost{display:none}
}