/* ==========================================================================
   STEPWISE — Design System
   Farben: Terracotta #B4531C · Navy #12202E · Creme #F6F2EA
   ========================================================================== */

:root{
  --bg:#F6F2EA;
  --bg-alt:#EFE8DA;
  --surface:#FFFFFF;
  --surface-2:#FBF8F2;
  --line:#DFD8C9;
  --line-soft:#EAE4D7;
  --ink:#12202E;
  --ink-2:#4A5865;
  --ink-3:#7C8894;
  --accent:#B4531C;
  --accent-2:#93400F;
  --accent-tint:#F2E0CE;
  --accent-ink:#FBF6EE;
  --ok:#2F6B4F;
  --shadow-sm:0 1px 2px rgba(18,32,46,.05);
  --shadow:0 2px 4px rgba(18,32,46,.04), 0 12px 32px -16px rgba(18,32,46,.18);
  --shadow-lg:0 4px 8px rgba(18,32,46,.05), 0 24px 56px -24px rgba(18,32,46,.26);
  --radius:14px;
  --radius-sm:9px;
  --maxw:1140px;
  --pad:6vw;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0C141C;
    --bg-alt:#101A24;
    --surface:#15212C;
    --surface-2:#1A2733;
    --line:#26333F;
    --line-soft:#1F2C38;
    --ink:#ECE6D9;
    --ink-2:#A5AEB7;
    --ink-3:#717C87;
    --accent:#E28A4E;
    --accent-2:#F0A473;
    --accent-tint:#2E2119;
    --accent-ink:#12202E;
    --ok:#6FBF95;
    --shadow-sm:0 1px 2px rgba(0,0,0,.35);
    --shadow:0 2px 4px rgba(0,0,0,.3), 0 16px 36px -18px rgba(0,0,0,.7);
    --shadow-lg:0 4px 10px rgba(0,0,0,.35), 0 28px 60px -26px rgba(0,0,0,.8);
  }
}
:root[data-theme="dark"]{
  --bg:#0C141C;
  --bg-alt:#101A24;
  --surface:#15212C;
  --surface-2:#1A2733;
  --line:#26333F;
  --line-soft:#1F2C38;
  --ink:#ECE6D9;
  --ink-2:#A5AEB7;
  --ink-3:#717C87;
  --accent:#E28A4E;
  --accent-2:#F0A473;
  --accent-tint:#2E2119;
  --accent-ink:#12202E;
  --ok:#6FBF95;
  --shadow-sm:0 1px 2px rgba(0,0,0,.35);
  --shadow:0 2px 4px rgba(0,0,0,.3), 0 16px 36px -18px rgba(0,0,0,.7);
  --shadow-lg:0 4px 10px rgba(0,0,0,.35), 0 28px 60px -26px rgba(0,0,0,.8);
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Source Serif 4",Georgia,"Times New Roman",serif;
  font-size:17px;line-height:1.62;-webkit-font-smoothing:antialiased;
  display:flex;flex-direction:column;min-height:100vh;
}
h1,h2,h3,h4,.ui{font-family:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif}
h1,h2,h3,h4{margin:0;color:var(--ink);text-wrap:balance;letter-spacing:-.012em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
strong{font-weight:600;color:var(--ink)}
main{flex:1}

a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;z-index:300;background:var(--surface);padding:.7em 1.1em;border-radius:8px;box-shadow:var(--shadow)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad);width:100%}
.wrap-narrow{max-width:760px;margin:0 auto;padding-left:var(--pad);padding-right:var(--pad);width:100%}
section{padding:clamp(3.4rem,2rem + 4vw,5.6rem) 0}
.sec-head{max-width:620px;margin-bottom:clamp(2rem,1rem + 2.5vw,3.2rem)}
.sec-head h2{font-size:clamp(1.55rem,1.15rem + 1.7vw,2.25rem);font-weight:700}
.sec-head p{margin-top:.9rem;color:var(--ink-2);font-size:1.04rem}

.eyebrow{
  display:block;font-family:"Bricolage Grotesque",sans-serif;
  font-size:.75rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;
  color:var(--accent);margin-bottom:.75em;
}
.rule{width:44px;height:3px;background:var(--accent);border-radius:2px;margin:1.4rem 0}

/* ---------- Logo ---------- */
.logo{display:inline-flex;align-items:center;gap:.62em;white-space:nowrap}
.logo svg{width:1.5em;height:1.5em;flex-shrink:0}
.logo .stair{fill:var(--ink)}
.logo .mark{
  font-family:"Bricolage Grotesque",sans-serif;font-weight:800;
  letter-spacing:.17em;font-size:.95rem;color:var(--accent);
}

/* ---------- Header ---------- */
.hdr{
  position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--bg) 90%,transparent);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line-soft);
}
.hdr-in{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);height:66px;display:flex;align-items:center;gap:1.6rem}
.nav{display:flex;gap:1.5rem;flex:1;margin-left:.6rem}
.nav a{font-family:"Bricolage Grotesque",sans-serif;font-size:.92rem;font-weight:500;color:var(--ink-2)}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--accent);font-weight:600}
.hdr-actions{display:flex;align-items:center;gap:.7rem;margin-left:auto}
.tglt{
  width:44px;height:44px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-2);font-size:.95rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;line-height:1;
  transition:color .15s,border-color .15s;
}
.tglt:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- Mobile menu ---------- */
.mbtn{display:none;position:relative;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);background:var(--surface);cursor:pointer;flex-shrink:0;padding:0}
.mbtn:hover{border-color:var(--accent)}
.mbtn span{position:absolute;left:12px;right:12px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s ease,opacity .15s ease}
.mbtn span:nth-child(1){top:15px}
.mbtn span:nth-child(2){top:21px}
.mbtn span:nth-child(3){top:27px}
.mbtn[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.mbtn[aria-expanded="true"] span:nth-child(2){opacity:0}
.mbtn[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media (max-width:820px){
  .mbtn{display:block}
  .nav{
    position:absolute;top:66px;left:0;right:0;z-index:99;
    background:var(--bg);border-bottom:1px solid var(--line-soft);
    flex-direction:column;gap:0;margin:0;padding:0 var(--pad);
    max-height:0;overflow:hidden;opacity:0;
    transition:max-height .25s ease,opacity .2s ease;
    box-shadow:var(--shadow);
  }
  .nav.open{max-height:320px;opacity:1;padding:.4rem var(--pad) 1.1rem}
  .nav a{padding:.9em .1em;border-bottom:1px solid var(--line-soft);font-size:1rem}
  .nav a:last-child{border-bottom:none}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-family:"Bricolage Grotesque",sans-serif;font-weight:600;font-size:.93rem;
  padding:.8em 1.4em;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;
  transition:background .15s,border-color .15s,color .15s,transform .1s;
}
.btn:active{transform:translateY(1px)}
.btn-pri{background:var(--accent);color:var(--accent-ink)}
.btn-pri:hover{background:var(--accent-2)}
.btn-pri::after{content:"→";display:inline-block;transition:transform .18s ease}
.btn-pri:hover::after{transform:translateX(3px)}
.btn-sec{background:transparent;color:var(--accent);border-color:currentColor}
.btn-sec:hover{background:var(--accent-tint)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-sm{font-size:.85rem;padding:.62em 1.05em}
.btn-block{width:100%}

/* ---------- Breadcrumb ---------- */
.crumb{
  font-family:"IBM Plex Mono",monospace;font-size:.76rem;color:var(--ink-3);
  padding-top:1.8rem;display:flex;gap:.5em;flex-wrap:wrap;align-items:center;
}
.crumb a:hover{color:var(--accent)}
.crumb span{color:var(--ink-3)}

/* ---------- Hero ---------- */
.hero{padding-top:clamp(2.6rem,1.4rem + 3vw,4.4rem);padding-bottom:clamp(2rem,1rem + 2vw,3rem);position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-16%;right:-10%;width:640px;height:640px;
  background:radial-gradient(circle,var(--accent-tint) 0%,transparent 68%);
  opacity:.75;pointer-events:none;z-index:0;
}
.hero > .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:3rem;align-items:center}
.hero h1{font-size:clamp(1.95rem,1.3rem + 2.7vw,3.05rem);font-weight:800;line-height:1.1}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{margin-top:1.25rem;font-size:clamp(1.02rem,.96rem + .3vw,1.16rem);color:var(--ink-2);max-width:47ch}
.hero-cta{display:flex;gap:.85rem;margin-top:2rem;flex-wrap:wrap}
.hero-meta{
  margin-top:2.4rem;display:flex;gap:2rem;flex-wrap:wrap;
  font-family:"IBM Plex Mono",monospace;font-size:.78rem;color:var(--ink-3);
}
.hero-meta b{display:block;font-family:"Bricolage Grotesque",sans-serif;font-size:1.45rem;color:var(--ink);font-weight:700;margin-bottom:.15em}

.stairs{display:flex;align-items:flex-end;gap:9px;height:150px}
.stairs i{
  display:block;width:30px;border-radius:5px 5px 0 0;background:var(--accent-tint);
  animation:st 3s ease-in-out infinite;
}
.stairs i:nth-child(1){height:42px;animation-delay:0s}
.stairs i:nth-child(2){height:76px;animation-delay:.2s}
.stairs i:nth-child(3){height:110px;animation-delay:.4s}
.stairs i:nth-child(4){height:150px;animation-delay:.6s;background:var(--accent)}
@keyframes st{0%,100%{transform:scaleY(1)}45%{transform:scaleY(1.07)}}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}.stairs{display:none}}
@media (max-width:560px){.hero h1 br{display:none}}

/* ---------- Cards grid ---------- */
.grid{display:grid;gap:1.25rem}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media (max-width:980px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}}

.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.7rem 1.55rem;display:flex;flex-direction:column;gap:.75rem;
  box-shadow:var(--shadow-sm);transition:box-shadow .18s,border-color .18s,transform .18s;
}
a.card:hover{box-shadow:var(--shadow);border-color:var(--accent);transform:translateY(-2px)}
.card h3{font-size:1.08rem;font-weight:700;line-height:1.28}
.card p{font-size:.9rem;color:var(--ink-2);line-height:1.55}
.card-num{
  font-family:"IBM Plex Mono",monospace;font-size:.74rem;color:var(--accent);
  letter-spacing:.08em;font-weight:500;
}
.card-foot{margin-top:auto;padding-top:.9rem;display:flex;align-items:baseline;justify-content:space-between;gap:.6rem}
.price{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:1.28rem;color:var(--ink);font-variant-numeric:tabular-nums}
.price small{font-size:.78rem;font-weight:500;color:var(--ink-3)}
.price-free{color:var(--ok)}
.pages{font-family:"IBM Plex Mono",monospace;font-size:.74rem;color:var(--ink-3)}

/* ---------- Bundle cards ---------- */
.bundle-card{position:relative;overflow:hidden}
.bundle-card .incl{font-size:.87rem;color:var(--ink-2);line-height:1.6;flex:1}
.bundle-card .save{
  display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:.7rem;
  background:var(--accent-tint);color:var(--accent);padding:.3em .6em;border-radius:5px;
  letter-spacing:.03em;align-self:flex-start;
}
.card-dark{background:var(--ink);border-color:var(--ink);position:relative}
.card-dark h3,.card-dark .price{color:var(--bg)}
.card-dark .incl,.card-dark p{color:color-mix(in srgb,var(--bg) 72%,transparent)}
.card-dark .card-num{color:var(--accent-2)}
.card-dark .save{background:color-mix(in srgb,var(--bg) 16%,transparent);color:var(--bg)}
.card-dark .btn-sec{color:var(--bg);border-color:color-mix(in srgb,var(--bg) 45%,transparent)}
.card-dark .btn-sec:hover{background:color-mix(in srgb,var(--bg) 12%,transparent)}

.badge-pop{
  position:absolute;top:1.15rem;right:1.15rem;
  font-family:"IBM Plex Mono",monospace;font-size:.65rem;font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;
  background:var(--accent);color:var(--accent-ink);
  padding:.32em .62em;border-radius:5px;
}

/* ---------- Scroll reveal (JS-gated, safe with JS off) ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s cubic-bezier(.16,.8,.3,1),transform .65s cubic-bezier(.16,.8,.3,1)}
.reveal.in{opacity:1;transform:translateY(0)}
.grid.reveal.in > *{animation:card-rise .55s cubic-bezier(.16,.8,.3,1) both}
.grid.reveal.in > *:nth-child(1){animation-delay:0ms}
.grid.reveal.in > *:nth-child(2){animation-delay:70ms}
.grid.reveal.in > *:nth-child(3){animation-delay:140ms}
.grid.reveal.in > *:nth-child(4){animation-delay:210ms}
.grid.reveal.in > *:nth-child(5){animation-delay:280ms}
@keyframes card-rise{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}
@media (prefers-reduced-motion:reduce){.grid.reveal.in > *{animation:none}}

/* ---------- Card hover polish ---------- */
a.card:hover .price{color:var(--accent);transition:color .18s}
a.card .price{transition:color .18s}
a.card:hover .card-num{transform:translateX(2px);transition:transform .18s ease}
.card-num{display:inline-block;transition:transform .18s ease}
.free-badge{transition:transform .25s cubic-bezier(.16,.8,.3,1)}
.free-band:hover .free-badge{transform:translateY(-3px) rotate(-1.5deg)}

/* ---------- "Rising" purchase-confirmation toast ---------- */
.buy-toast{
  position:fixed;left:50%;bottom:2rem;transform:translate(-50%,12px);
  display:flex;align-items:center;gap:.6em;
  background:var(--ink);color:var(--bg);
  font-family:"Bricolage Grotesque",sans-serif;font-size:.88rem;font-weight:600;
  padding:.85em 1.3em;border-radius:999px;box-shadow:var(--shadow-lg);
  opacity:0;pointer-events:none;z-index:400;
  transition:opacity .35s ease,transform .55s cubic-bezier(.16,.8,.3,1);
  white-space:nowrap;
}
.buy-toast svg{width:1.1em;height:1.1em;flex-shrink:0;stroke:var(--accent-2);stroke-width:2.5;fill:none}
.buy-toast.show{opacity:1;transform:translate(-50%,-10px)}
.buy-toast.leave{opacity:0;transform:translate(-50%,-34px);transition:opacity .4s ease,transform .4s cubic-bezier(.4,0,1,1)}
@media (prefers-reduced-motion:reduce){
  .buy-toast{transition:opacity .2s ease}
  .buy-toast.show{transform:translate(-50%,-10px)}
  .buy-toast.leave{transform:translate(-50%,-10px)}
}

/* ---------- Free banner ---------- */
.free-band{background:var(--bg-alt);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.free-in{display:flex;gap:2.4rem;align-items:center;flex-wrap:wrap}
.free-txt{flex:1;min-width:260px}
.free-txt h2{font-size:clamp(1.4rem,1.1rem + 1.2vw,1.95rem);font-weight:700}
.free-txt p{margin-top:.85rem;color:var(--ink-2);max-width:52ch}
.free-badge{
  flex-shrink:0;width:130px;height:130px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.2rem;
  box-shadow:var(--shadow-sm);
}
.free-badge b{font-family:"Bricolage Grotesque",sans-serif;font-size:2.6rem;font-weight:800;color:var(--accent);line-height:1}
.free-badge span{font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--ink-3);letter-spacing:.06em}

/* ---------- Detail page ---------- */
.detail{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:3.4rem;align-items:start;padding-top:2.2rem}
@media (max-width:940px){.detail{grid-template-columns:1fr;gap:2.2rem}}
.detail h1{font-size:clamp(1.7rem,1.2rem + 2.2vw,2.6rem);font-weight:800;line-height:1.12}
.detail-lead{margin-top:1.1rem;font-size:1.1rem;color:var(--ink-2);max-width:54ch}
.detail-body{margin-top:2.4rem;display:flex;flex-direction:column;gap:2.2rem}
.detail-body h2{font-size:1.22rem;font-weight:700;margin-bottom:.9rem}
.detail-body p{color:var(--ink-2);max-width:62ch}
.detail-body p + p{margin-top:.8rem}

.toc{display:flex;flex-direction:column;gap:.1rem;border-top:1px solid var(--line-soft)}
.toc li{
  display:flex;gap:1rem;padding:.72rem .2rem;border-bottom:1px solid var(--line-soft);
  font-size:.95rem;align-items:baseline;
}
.toc li i{font-family:"IBM Plex Mono",monospace;font-size:.75rem;color:var(--ink-3);font-style:normal;flex-shrink:0;width:1.6em}
.toc li span{color:var(--ink)}

.forwho{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem}
@media (max-width:620px){.forwho{grid-template-columns:1fr}}
.forwho div h3{font-size:.8rem;letter-spacing:.09em;text-transform:uppercase;font-weight:700;margin-bottom:.8rem}
.forwho .yes h3{color:var(--ok)}
.forwho .no h3{color:var(--ink-3)}
.forwho ul{display:flex;flex-direction:column;gap:.5rem}
.forwho li{font-size:.93rem;color:var(--ink-2);padding-left:1.3em;position:relative}
.forwho .yes li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:700}
.forwho .no li::before{content:"–";position:absolute;left:0;color:var(--ink-3)}

.excerpt{
  background:var(--surface-2);border:1px solid var(--line-soft);border-left:3px solid var(--accent);
  border-radius:var(--radius-sm);padding:1.4rem 1.5rem;
  font-family:"IBM Plex Mono",monospace;font-size:.82rem;line-height:1.65;color:var(--ink-2);
  white-space:pre-wrap;overflow-x:auto;
}

/* ---------- Buy box ---------- */
.buybox{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.7rem;box-shadow:var(--shadow);position:sticky;top:88px;
  display:flex;flex-direction:column;gap:1rem;
}
.buybox .bb-price{font-family:"Bricolage Grotesque",sans-serif;font-size:2.3rem;font-weight:800;line-height:1;font-variant-numeric:tabular-nums}
.buybox .bb-price small{font-size:.85rem;font-weight:500;color:var(--ink-3);margin-left:.3em}
.bb-facts{display:flex;flex-direction:column;gap:.55rem;font-size:.87rem;color:var(--ink-2);border-top:1px solid var(--line-soft);padding-top:1rem}
.bb-facts div{display:flex;justify-content:space-between;gap:1rem}
.bb-facts b{font-weight:600;color:var(--ink);font-family:"IBM Plex Mono",monospace;font-size:.8rem}
.bb-note{font-size:.78rem;color:var(--ink-3);line-height:1.5}
@media (max-width:940px){.buybox{position:static}}

/* ---------- Legal pages ---------- */
.legal{padding-top:2.4rem;padding-bottom:4rem}
.legal h1{font-size:clamp(1.6rem,1.2rem + 1.8vw,2.3rem);font-weight:800;margin-bottom:1.6rem}
.legal h2{font-size:1.12rem;font-weight:700;margin:2.2rem 0 .7rem}
.legal h3{font-size:.97rem;font-weight:700;margin:1.4rem 0 .5rem}
.legal p{color:var(--ink-2);margin-bottom:.8rem}
.legal ul{list-style:disc;padding-left:1.3rem;margin-bottom:1rem;color:var(--ink-2)}
.legal li{margin-bottom:.4rem}
.legal address{font-style:normal;color:var(--ink-2);line-height:1.75}
.todo{
  background:var(--accent-tint);border-left:3px solid var(--accent);border-radius:var(--radius-sm);
  padding:1.1rem 1.3rem;margin:1.4rem 0;font-size:.9rem;color:var(--ink);
}
.todo b{display:block;font-family:"Bricolage Grotesque",sans-serif;margin-bottom:.35rem;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}

/* ---------- Footer ---------- */
.ftr{border-top:1px solid var(--line-soft);background:var(--bg-alt);padding:2.8rem 0 2.2rem;margin-top:2rem}
.ftr-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.4rem}
@media (max-width:760px){.ftr-in{grid-template-columns:1fr;gap:1.8rem}}
.ftr-col h4{font-family:"Bricolage Grotesque",sans-serif;font-size:.76rem;letter-spacing:.11em;text-transform:uppercase;color:var(--ink-3);margin-bottom:.9rem;font-weight:600}
.ftr-col ul{display:flex;flex-direction:column;gap:.55rem}
.ftr-col a{font-size:.9rem;color:var(--ink-2)}
.ftr-col a:hover{color:var(--accent)}
.ftr-about{font-size:.88rem;color:var(--ink-2);margin-top:1rem;max-width:34ch;line-height:1.6}
.ftr-btm{
  margin-top:2.4rem;padding-top:1.4rem;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-family:"IBM Plex Mono",monospace;font-size:.76rem;color:var(--ink-3);
}

/* ---------- Misc ---------- */
.center{text-align:center}
.mt-lg{margin-top:2.4rem}
.notfound{text-align:center;padding:6rem 0}
.notfound b{font-family:"Bricolage Grotesque",sans-serif;font-size:5rem;font-weight:800;color:var(--accent);display:block;line-height:1}

/* ==========================================================================
   v2 — catalog filters, FAQ, free cards, library, scroll progress
   ========================================================================== */

/* ---------- Scroll progress ---------- */
.progress{
  position:fixed;top:0;left:0;height:3px;width:100%;transform-origin:0 50%;
  transform:scaleX(0);background:linear-gradient(90deg,var(--accent),var(--accent-2));
  z-index:200;pointer-events:none;
}

/* ---------- Free guide cards ---------- */
.free-card{position:relative;overflow:hidden}
.free-num{
  position:absolute;top:-.18em;right:.12em;
  font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:5.4rem;
  line-height:1;color:var(--accent);opacity:.13;pointer-events:none;
  transition:opacity .25s ease,transform .35s cubic-bezier(.16,.8,.3,1);
}
a.free-card:hover .free-num{opacity:.22;transform:translateY(3px) scale(1.04)}

/* ---------- Library category cards ---------- */
.lib-card{gap:.55rem}
.lib-list{display:flex;flex-direction:column;gap:.5rem;margin-top:.4rem}
.lib-list li{font-size:.9rem;line-height:1.45}
.lib-list a{color:var(--ink-2);transition:color .15s}
.lib-list a:hover{color:var(--accent)}
.lib-free{
  font-family:"IBM Plex Mono",monospace;font-size:.62rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ok);border:1px solid currentColor;
  padding:.1em .38em;border-radius:4px;margin-left:.35em;vertical-align:.08em;
}

/* ---------- Catalog filter chips ---------- */
.filters{
  display:flex;flex-wrap:wrap;gap:.5rem;
  margin:0 0 1rem;padding:0;
}
.chip{
  display:inline-flex;align-items:center;gap:.45em;
  font-family:"Bricolage Grotesque",sans-serif;font-size:.84rem;font-weight:500;
  color:var(--ink-2);background:var(--surface);
  border:1px solid var(--line);border-radius:999px;
  padding:.6em .95em;min-height:44px;cursor:pointer;
  transition:color .15s,border-color .15s,background .15s;
}
.chip:hover{color:var(--accent);border-color:var(--accent)}
.chip .chip-n{
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--ink-3);
  background:var(--bg-alt);border-radius:999px;padding:.15em .45em;min-width:1.7em;
  text-align:center;transition:color .15s,background .15s;
}
.chip[aria-pressed="true"]{
  background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600;
}
.chip[aria-pressed="true"] .chip-n{
  background:color-mix(in srgb,var(--accent-ink) 22%,transparent);color:var(--accent-ink);
}
.chip-free[aria-pressed="true"]{background:var(--ok);border-color:var(--ok);color:#fff}
.filter-status{
  font-family:"IBM Plex Mono",monospace;font-size:.76rem;color:var(--ink-3);
  margin:0 0 1.6rem;min-height:1.2em;
}
.card[hidden]{display:none}
.card.filtering{animation:card-rise .38s cubic-bezier(.16,.8,.3,1) both}

/* ---------- FAQ accordion ---------- */
.faq{display:flex;flex-direction:column;border-top:1px solid var(--line-soft)}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:1rem;
  padding:1.1rem .2rem;font-family:"Bricolage Grotesque",sans-serif;
  font-weight:600;font-size:1rem;color:var(--ink);
  transition:color .15s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent)}
.faq-item summary span{flex:1}
.faq-item summary i{
  flex-shrink:0;width:14px;height:14px;margin-top:.3em;position:relative;
  transition:transform .28s cubic-bezier(.16,.8,.3,1);
}
.faq-item summary i::before,.faq-item summary i::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
}
.faq-item summary i::before{top:6px;left:0;width:14px;height:2px}
.faq-item summary i::after{left:6px;top:0;width:2px;height:14px;transition:opacity .2s ease}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-item[open] summary i::after{opacity:0}
.faq-a{padding:0 .2rem 1.3rem;max-width:64ch}
.faq-a p{color:var(--ink-2);font-size:.97rem}
.faq-a a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.faq-item[open] .faq-a{animation:faq-open .3s cubic-bezier(.16,.8,.3,1) both}
@keyframes faq-open{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}

/* ---------- Buybox disclaimer ---------- */
.bb-warn{
  border-top:1px solid var(--line-soft);padding-top:.85rem;margin-top:.15rem;
  color:var(--ink-3);font-size:.75rem;line-height:1.55;
}

/* ---------- Extra polish ---------- */
.nav a{position:relative}
@media (min-width:821px){
  .nav a::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
    background:var(--accent);border-radius:2px;
    transform:scaleX(0);transform-origin:0 50%;transition:transform .22s cubic-bezier(.16,.8,.3,1);
  }
  .nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
}
a.card{position:relative}
a.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:var(--accent);border-radius:var(--radius) var(--radius) 0 0;
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .3s cubic-bezier(.16,.8,.3,1);
}
a.card:hover::before{transform:scaleX(1)}
.grid.reveal.in > *:nth-child(6){animation-delay:350ms}
.grid.reveal.in > *:nth-child(7){animation-delay:420ms}
.grid.reveal.in > *:nth-child(8){animation-delay:490ms}
@media (prefers-reduced-motion:reduce){
  .progress{display:none}
  .card.filtering{animation:none}
  .faq-item[open] .faq-a{animation:none}
  .free-num{transition:none}
}

/* ==========================================================================
   v3 — DESKTOP-PRIMARY LAYER
   The site is now tuned for large screens first: wider canvas, larger type,
   denser grids, richer pointer interactions. Small screens keep working via
   the earlier mobile rules, which stay untouched below 1024px.
   ========================================================================== */

:root{ --maxw:1280px; }

@media (min-width:1024px){
  html{ font-size:17px; }
  :root{ --pad:3.25rem; }
  body{ font-size:18px; line-height:1.6; }
}
@media (min-width:1440px){
  :root{ --maxw:1360px; --pad:4rem; }
}
@media (min-width:1700px){
  html{ font-size:17.5px; }
  :root{ --maxw:1440px; }
}

/* ---------- Header gets more presence ---------- */
@media (min-width:1024px){
  .hdr-in{ height:76px; gap:2.2rem; }
  .nav{ gap:2.1rem; margin-left:1.2rem; }
  .nav a{ font-size:.95rem; }
  .buybox{ top:98px; }
}

/* ---------- Hero ---------- */
@media (min-width:1024px){
  .hero{
    padding-top:clamp(3.6rem,2rem + 4vw,6.2rem);
    padding-bottom:clamp(3rem,2rem + 3vw,4.6rem);
  }
  .hero-grid{ gap:4.5rem; }
  .hero h1{ font-size:clamp(2.9rem,1.9rem + 2.7vw,4.15rem); line-height:1.06; }
  .hero-sub{ font-size:1.2rem; max-width:50ch; margin-top:1.6rem; }
  .hero-cta{ margin-top:2.4rem; gap:1rem; }
  .hero-meta{ margin-top:3rem; gap:2.8rem; }
  .hero-meta b{ font-size:1.9rem; }
  .hero-meta span{ font-size:.8rem; }
  .hero::before{ width:820px; height:820px; top:-20%; right:-8%; }

  .stairs{ height:230px; gap:13px; }
  .stairs i{ width:44px; border-radius:7px 7px 0 0; }
  .stairs i:nth-child(1){ height:64px; }
  .stairs i:nth-child(2){ height:117px; }
  .stairs i:nth-child(3){ height:170px; }
  .stairs i:nth-child(4){ height:230px; }
}
@media (min-width:1440px){
  .stairs{ height:280px; gap:15px; }
  .stairs i{ width:52px; }
  .stairs i:nth-child(1){ height:78px; }
  .stairs i:nth-child(2){ height:142px; }
  .stairs i:nth-child(3){ height:207px; }
  .stairs i:nth-child(4){ height:280px; }
}

/* ---------- Section rhythm ---------- */
@media (min-width:1024px){
  section{ padding:clamp(4.2rem,2.4rem + 4vw,6.6rem) 0; }
  .sec-head{ max-width:700px; margin-bottom:clamp(2.4rem,1.2rem + 2.5vw,3.6rem); }
  .sec-head h2{ font-size:clamp(1.95rem,1.35rem + 1.9vw,2.75rem); }
  .sec-head p{ font-size:1.1rem; margin-top:1rem; }
  .wrap-narrow{ max-width:840px; }
}

/* ---------- Denser grids on wide screens ---------- */
@media (min-width:1024px){
  .grid{ gap:1.5rem; }
  .card{ padding:1.9rem 1.75rem; }
  .card h3{ font-size:1.14rem; }
  .card p{ font-size:.92rem; }
}
@media (min-width:1240px){
  /* the full catalog earns a fourth column */
  #catalog{ grid-template-columns:repeat(4,1fr); }
  /* the six bundle cards sit as two clean rows of three */
  .grid-3{ grid-template-columns:repeat(3,1fr); }
}
@media (min-width:1600px){
  #catalog{ grid-template-columns:repeat(5,1fr); }
}

/* ---------- Detail pages: wider body, roomier sidebar ---------- */
@media (min-width:1024px){
  .detail{ grid-template-columns:minmax(0,1fr) 360px; gap:4rem; padding-top:2.8rem; }
  .detail h1{ font-size:clamp(2.15rem,1.5rem + 2.2vw,3.05rem); }
  .detail-lead{ font-size:1.16rem; max-width:58ch; margin-top:1.3rem; }
  .detail-body{ margin-top:2.9rem; gap:2.8rem; }
  .detail-body h2{ font-size:1.32rem; margin-bottom:1.05rem; }
  .detail-body p{ max-width:66ch; }
  .toc li{ padding:.85rem .25rem; font-size:1rem; }
  .excerpt{ padding:1.7rem 1.8rem; font-size:.87rem; }
  .buybox{ padding:1.95rem; }
  .buybox .bb-price{ font-size:2.6rem; }
}
@media (min-width:1440px){
  .detail{ grid-template-columns:minmax(0,1fr) 390px; gap:4.8rem; }
}

/* ---------- Catalog filters read as a toolbar on desktop ---------- */
@media (min-width:1024px){
  .filters{ gap:.6rem; margin-bottom:1.15rem; }
  .chip{ font-size:.87rem; }
  .filter-status{ font-size:.78rem; margin-bottom:2rem; }
}

/* ---------- FAQ ---------- */
@media (min-width:1024px){
  .faq-item summary{ padding:1.25rem .25rem; font-size:1.06rem; }
  .faq-a{ padding:0 .25rem 1.5rem; }
  .faq-a p{ font-size:1rem; }
}

/* ---------- Footer ---------- */
@media (min-width:1024px){
  .ftr{ padding:3.4rem 0 2.6rem; }
  .ftr-in{ grid-template-columns:1.6fr 1fr 1fr; gap:3.2rem; }
}

/* ---------- Pointer-only refinements (never fire on touch) ---------- */
@media (hover:hover) and (pointer:fine){
  a.card{ transition:box-shadow .22s,border-color .22s,transform .22s cubic-bezier(.16,.8,.3,1); }
  a.card:hover{ transform:translateY(-5px); box-shadow:var(--shadow-lg); }
  a.card:hover h3{ color:var(--accent); }
  .card h3{ transition:color .18s; }
  .bundle-card:hover .save{ background:var(--accent); color:var(--accent-ink); transition:background .2s,color .2s; }
  .card-dark:hover .save{ background:var(--accent-2); color:var(--ink); }
  .buybox:hover{ box-shadow:var(--shadow-lg); }
  .buybox{ transition:box-shadow .25s; }
  .logo:hover .stair{ fill:var(--accent); transition:fill .2s; }
  .logo .stair{ transition:fill .2s; }
}

/* Touch devices keep the flat, non-hover treatment */
@media (hover:none){
  a.card:hover{ transform:none; }
}

/* Compact chips only for precise pointers; touch always keeps the 44px target */
@media (min-width:1024px) and (hover:hover) and (pointer:fine){
  .chip{ padding:.55em 1.05em; min-height:42px; }
}