:root{
  --bg:#FAFAF8;--surface:#FFFFFF;--surface-alt:#F1EEE6;
  --ink:#17181A;--ink-soft:#6B6B66;--ink-faint:#9C9A92;
  --copper:#C97C3D;--copper-dark:#A8632B;--copper-light:#E8B98A;
  --graphite:#2B2E33;--line:#E4E1D8;--line-strong:#D2CDBF;
  --stock:#4C7A5E;--radius:2px;
  --font-display:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-body:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,'Liberation Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);line-height:1.6;overflow-x:hidden;
  background-image:radial-gradient(circle,var(--line) 1px,transparent 1px);background-size:28px 28px;background-position:-14px -14px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
a{color:inherit;text-decoration:none}ul{list-style:none}img{max-width:100%;display:block}section{position:relative}
::selection{background:var(--copper);color:#fff}
a:focus-visible,button:focus-visible{outline:2px solid var(--copper);outline-offset:3px}

.wrap{max-width:1200px;margin:0 auto;padding:0 48px}
@media(max-width:768px){.wrap{padding:0 24px}}

.library-list{display:flex;flex-direction:column;gap:9px}
.library-list li{display:grid;grid-template-columns:minmax(120px,auto) 24px 1fr;align-items:center;gap:8px}
.library-list code{font-family:var(--font-mono);font-size:12px}
.library-arrow{color:var(--copper-dark);font-weight:700;text-align:center}
@media(max-width:560px){.library-list li{grid-template-columns:1fr;gap:2px}.library-arrow{display:none}}

/* ── Page system ── */
.page{display:none;opacity:0;transform:translateY(16px);transition:opacity .45s cubic-bezier(.23,1,.32,1),transform .45s cubic-bezier(.23,1,.32,1)}
.page.active{display:block}
.page.visible{opacity:1;transform:translateY(0)}
.page-trace{height:4px;overflow:hidden;margin-top:72px}
.page-trace-line{stroke:var(--copper);stroke-width:1.5;stroke-dasharray:1200;stroke-dashoffset:1200}
.page.active .page-trace-line{animation:drawPageTrace .9s ease .25s forwards}
@keyframes drawPageTrace{to{stroke-dashoffset:0}}
.page-via-left,.page-via-right{position:absolute;top:72px;width:8px;height:8px;border-radius:50%;border:1.5px solid var(--copper);background:var(--bg);opacity:0;z-index:2}
.page.active .page-via-left,.page.active .page-via-right{animation:viaPop .4s ease 1s forwards}
.page-via-left{left:calc(50% - 400px)}
.page-via-right{left:calc(50% + 392px)}
@media(max-width:860px){.page-via-left,.page-via-right{display:none}}

/* ── Scroll rail ── */
.trace-rail{position:fixed;right:28px;top:50%;transform:translateY(-50%);width:2px;height:min(52vh,440px);z-index:60}
.trace-rail .rail-track{position:relative;width:2px;height:100%;background:var(--line-strong)}
.trace-rail .rail-fill{position:absolute;top:0;left:0;width:100%;height:0;background:linear-gradient(var(--copper-dark),var(--copper));transition:height .12s linear}
.mobile-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--copper);z-index:70;transition:width .1s linear;display:none}
@media(max-width:1024px){.trace-rail{display:none}.mobile-progress{display:block}}

/* ── Nav ── */
header.nav{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(250,250,248,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 48px;height:72px;display:flex;align-items:center;justify-content:space-between}
@media(max-width:768px){.nav-inner{padding:0 24px}}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:18px;letter-spacing:-.01em;cursor:pointer}
.logo .chip{width:26px;height:26px;border:1.6px solid var(--ink);border-radius:4px;position:relative;flex-shrink:0}
.logo .chip::before,.logo .chip::after{content:'';position:absolute;background:var(--ink)}
.logo .chip::before{width:8px;height:1.6px;top:6px;left:-6px}
.logo .chip::after{width:8px;height:1.6px;bottom:6px;right:-6px}
.logo small{font-family:var(--font-mono);font-weight:400;font-size:11px;color:var(--copper-dark);margin-left:2px}
nav.links{display:flex;gap:36px;align-items:center}
nav.links a{font-family:var(--font-mono);font-size:13px;color:var(--ink-soft);position:relative;padding:4px 0;transition:color .2s ease;cursor:pointer}
nav.links a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:1.5px;background:var(--copper);transition:width .25s ease}
nav.links a:hover{color:var(--ink)}nav.links a:hover::after{width:100%}
nav.links a.active{color:var(--ink)}nav.links a.active::after{width:100%}
.nav-cta{font-family:var(--font-mono);font-size:12.5px;padding:9px 16px;border:1px solid var(--ink);border-radius:2px;transition:all .2s ease;cursor:pointer;background:none;color:var(--ink)}
.nav-cta:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.nav-cta .cart-count{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;border-radius:20px;background:var(--copper);color:#fff;font-size:10px;font-weight:600;margin-left:6px;padding:0 5px;opacity:0;transform:scale(0);transition:all .25s ease}
.nav-cta .cart-count.visible{opacity:1;transform:scale(1)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.burger span{width:22px;height:2px;background:var(--ink);display:block;transition:all .25s ease}
.burger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
@media(max-width:860px){nav.links,.nav-cta{display:none}.burger{display:flex}}
.mobile-menu{position:fixed;inset:72px 0 0 0;background:var(--bg);z-index:49;display:none;flex-direction:column;padding:48px 48px;gap:32px;border-top:1px solid var(--line)}
.mobile-menu.open{display:flex}
.mobile-menu a{font-family:var(--font-display);font-size:28px;font-weight:600;transition:color .2s ease}
.mobile-menu a:hover{color:var(--copper)}
@media(max-width:768px){.mobile-menu{padding:32px 24px}}

/* ── Hero ── */
.hero{min-height:110svh;display:flex;align-items:center;padding-top:72px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:64px;align-items:center;width:100%}
@media(max-width:960px){.hero-grid{grid-template-columns:1fr;gap:48px}}
.kanji-watermark{position:absolute;font-family:var(--font-display);font-size:clamp(240px,36vw,520px);font-weight:700;color:var(--ink);opacity:.03;top:50%;left:58%;transform:translate(-50%,-50%);z-index:0;pointer-events:none;user-select:none;line-height:1}
.eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--copper-dark);display:flex;align-items:center;gap:10px;margin-bottom:28px;opacity:0;transform:translateY(10px);animation:riseIn .7s ease .1s forwards}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--copper);animation:pulse 2.2s ease-in-out infinite}
h1.hero-title{font-family:var(--font-display);font-weight:700;font-size:clamp(48px,6.8vw,88px);line-height:1;letter-spacing:-.025em;position:relative;z-index:1;opacity:0;transform:translateY(16px);animation:riseIn .8s ease .22s forwards}
h1.hero-title .accent{color:var(--copper)}
.hero-sub{margin-top:32px;max-width:480px;font-size:16.5px;color:var(--ink-soft);line-height:1.7;position:relative;z-index:1;opacity:0;transform:translateY(14px);animation:riseIn .8s ease .38s forwards}
.hero-actions{margin-top:44px;display:flex;gap:18px;flex-wrap:wrap;opacity:0;transform:translateY(14px);animation:riseIn .8s ease .5s forwards}
.btn{font-family:var(--font-mono);font-size:13.5px;padding:16px 28px;border-radius:2px;display:inline-flex;align-items:center;gap:10px;transition:all .2s ease;cursor:pointer;border:none}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px -10px rgba(23,24,26,.45)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
@keyframes riseIn{to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(1.4)}}

/* ── Hero Image ── */
.hero-image-wrap{position:relative;z-index:1;border-radius:4px;overflow:hidden;width:120%;max-width:700px;margin-left:auto;opacity:0;transform:translateY(30px) scale(.97);animation:imgReveal 1.2s cubic-bezier(.23,1,.32,1) .4s forwards;
  box-shadow:0 0 0 1px var(--line-strong),0 32px 80px -24px rgba(43,46,51,.35),0 0 120px -24px rgba(201,124,61,.12)}
@keyframes imgReveal{to{opacity:1;transform:translateY(0) scale(1)}}
.hero-image-wrap img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;filter:contrast(1.06) saturate(.82) brightness(.9);transition:filter .6s ease}
.hero-image-wrap:hover img{filter:contrast(1.1) saturate(.95) brightness(.95)}
.hero-image-wrap .scan-line{position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent 0%,var(--copper) 20%,var(--copper-light) 50%,var(--copper) 80%,transparent 100%);box-shadow:0 0 24px 4px rgba(201,124,61,.35),0 0 60px 8px rgba(201,124,61,.12);opacity:0;animation:scanDown 3.8s ease-in-out 1.6s infinite;pointer-events:none;z-index:3}
@keyframes scanDown{0%{top:-2px;opacity:0}5%{opacity:.85}90%{opacity:.85}100%{top:100%;opacity:0}}
.hero-image-wrap .grid-overlay{position:absolute;inset:0;background-image:linear-gradient(rgba(201,124,61,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(201,124,61,.05) 1px,transparent 1px);background-size:24px 24px;pointer-events:none;z-index:2;opacity:0;animation:gridFadeIn 1s ease 1.4s forwards}
@keyframes gridFadeIn{to{opacity:1}}
.hero-image-wrap .trace-overlay{position:absolute;inset:0;pointer-events:none;z-index:2;overflow:hidden}
.hero-image-wrap .trace-overlay svg{position:absolute;inset:0;width:100%;height:100%}
.hero-image-wrap .trace-anim{fill:none;stroke:var(--copper);stroke-width:1.2;stroke-linecap:round;opacity:.3;stroke-dasharray:300;stroke-dashoffset:300;animation:drawImgTrace 2.5s ease 2s forwards}
.hero-image-wrap .trace-anim.t2{stroke:var(--copper-light);opacity:.2;animation-delay:2.4s;stroke-dasharray:200;stroke-dashoffset:200}
.hero-image-wrap .trace-anim.t3{stroke:var(--graphite);opacity:.18;animation-delay:2.8s;stroke-dasharray:250;stroke-dashoffset:250}
@keyframes drawImgTrace{to{stroke-dashoffset:0}}
.hero-image-wrap .img-via{position:absolute;width:8px;height:8px;border-radius:50%;border:1.5px solid var(--copper);background:rgba(250,250,248,.7);z-index:3;opacity:0;animation:viaPop .4s ease forwards;pointer-events:none}
.hero-image-wrap .img-via.copper-fill{background:var(--copper)}
@keyframes viaPop{0%{opacity:0;transform:scale(0)}70%{transform:scale(1.3)}100%{opacity:1;transform:scale(1)}}
.hero-image-wrap .corner{position:absolute;width:20px;height:20px;z-index:4;pointer-events:none;opacity:0;animation:cornerIn .5s ease 3s forwards}
.hero-image-wrap .corner::before,.hero-image-wrap .corner::after{content:'';position:absolute;background:var(--copper)}
.hero-image-wrap .corner.tl{top:12px;left:12px}.hero-image-wrap .corner.tl::before{top:0;left:0;width:20px;height:1.5px}.hero-image-wrap .corner.tl::after{top:0;left:0;width:1.5px;height:20px}
.hero-image-wrap .corner.tr{top:12px;right:12px}.hero-image-wrap .corner.tr::before{top:0;right:0;width:20px;height:1.5px}.hero-image-wrap .corner.tr::after{top:0;right:0;width:1.5px;height:20px}
.hero-image-wrap .corner.bl{bottom:12px;left:12px}.hero-image-wrap .corner.bl::before{bottom:0;left:0;width:20px;height:1.5px}.hero-image-wrap .corner.bl::after{bottom:0;left:0;width:1.5px;height:20px}
.hero-image-wrap .corner.br{bottom:12px;right:12px}.hero-image-wrap .corner.br::before{bottom:0;right:0;width:20px;height:1.5px}.hero-image-wrap .corner.br::after{bottom:0;right:0;width:1.5px;height:20px}
@keyframes cornerIn{to{opacity:.6}}
.hero-image-wrap .img-label{position:absolute;bottom:14px;left:14px;font-family:var(--font-mono);font-size:10px;color:var(--copper-light);background:rgba(23,24,26,.6);backdrop-filter:blur(6px);padding:5px 12px;border-radius:2px;z-index:4;pointer-events:none;opacity:0;animation:labelIn .5s ease 3.2s forwards;letter-spacing:.04em}
@keyframes labelIn{to{opacity:1}}
.hero-image-wrap .coord-readout{position:absolute;top:14px;right:14px;font-family:var(--font-mono);font-size:9px;color:rgba(201,124,61,.5);z-index:4;pointer-events:none;text-align:right;line-height:1.6;opacity:0;animation:labelIn .5s ease 3.4s forwards}
.hero-image-wrap .particle-canvas{position:absolute;inset:0;z-index:2;pointer-events:none}
.hero-image-wrap .hover-glow{position:absolute;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(201,124,61,.16) 0%,transparent 70%);pointer-events:none;z-index:2;opacity:0;transition:opacity .3s ease;transform:translate(-50%,-50%)}
.hero-image-wrap:hover .hover-glow{opacity:1}

/* ── Section transitions ── */
.section-transition{height:80px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.section-transition svg{width:100%;height:100%;overflow:visible}
.section-transition .st-trace{fill:none;stroke:var(--line-strong);stroke-width:1;stroke-dasharray:1200;stroke-dashoffset:1200}
.section-transition.is-visible .st-trace{animation:drawSectionTrace 2s ease forwards}
.section-transition .st-via{fill:var(--surface);stroke:var(--line-strong);stroke-width:1.5;opacity:0;transition:opacity .4s ease .8s}
.section-transition.is-visible .st-via{opacity:1}
@keyframes drawSectionTrace{to{stroke-dashoffset:0}}

/* ── Marquee ── */
.marquee-section{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);padding:22px 0;overflow:hidden}
.marquee-track{display:flex;width:max-content;animation:marquee 30s linear infinite}
.marquee-section:hover .marquee-track{animation-play-state:paused}
.marquee-item{font-family:var(--font-mono);font-size:13px;color:var(--ink-faint);padding:0 32px;display:flex;align-items:center;gap:14px;white-space:nowrap}
.marquee-item .sep{color:var(--copper);opacity:.5}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ── Section heads ── */
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap;margin-bottom:64px}
.section-eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--copper-dark);margin-bottom:20px;display:block}
.section-title{font-family:var(--font-display);font-weight:700;font-size:clamp(34px,4.4vw,52px);letter-spacing:-.02em;line-height:1.1}
.section-desc{max-width:420px;color:var(--ink-soft);font-size:15px;line-height:1.75}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-visible{opacity:1;transform:translateY(0)}
.reveal-stagger>*{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal-stagger.is-visible>*{opacity:1;transform:translateY(0)}
.reveal-stagger.is-visible>*:nth-child(1){transition-delay:.04s}
.reveal-stagger.is-visible>*:nth-child(2){transition-delay:.12s}
.reveal-stagger.is-visible>*:nth-child(3){transition-delay:.20s}
.reveal-stagger.is-visible>*:nth-child(4){transition-delay:.28s}
.reveal-stagger.is-visible>*:nth-child(5){transition-delay:.36s}
.reveal-stagger.is-visible>*:nth-child(6){transition-delay:.44s}
.reveal-stagger.is-visible>*:nth-child(7){transition-delay:.52s}
.reveal-stagger.is-visible>*:nth-child(8){transition-delay:.60s}
section.block{padding:160px 0}
@media(max-width:768px){section.block{padding:100px 0}.section-head{margin-bottom:48px}}

/* ── View all link ── */
.view-all{display:flex;justify-content:center;margin-top:64px}
.view-all a{font-family:var(--font-mono);font-size:13px;color:var(--ink-soft);display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border:1px solid var(--line-strong);border-radius:2px;transition:all .2s ease}
.view-all a:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px)}

/* ── Why section ── */
.why-section{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
@media(max-width:960px){.why-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.why-grid{grid-template-columns:1fr}}
.why-card{padding:40px 32px;border:1px solid var(--line);border-radius:3px;transition:all .3s ease;position:relative;overflow:hidden}
.why-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:2px;background:var(--copper);transform:scaleX(0);transform-origin:left;transition:transform .4s ease}
.why-card:hover::before{transform:scaleX(1)}
.why-card:hover{transform:translateY(-4px);box-shadow:0 24px 56px -20px rgba(23,24,26,.18)}
.why-icon{width:44px;height:44px;border:1.5px solid var(--line-strong);border-radius:3px;display:flex;align-items:center;justify-content:center;margin-bottom:28px;transition:border-color .3s ease}
.why-card:hover .why-icon{border-color:var(--copper)}
.why-icon svg{width:20px;height:20px;stroke:var(--copper);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.why-card h3{font-family:var(--font-display);font-size:19px;font-weight:600;margin-bottom:14px;letter-spacing:-.01em}
.why-card p{font-size:14px;color:var(--ink-soft);line-height:1.75}

/* ── Projects ── */
.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media(max-width:960px){.project-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.project-grid{grid-template-columns:1fr}}
.project-card{background:var(--surface);border:1px solid var(--line);border-radius:3px;overflow:hidden;display:flex;flex-direction:column;transition:all .3s ease;cursor:pointer}
.project-card:hover{transform:translateY(-6px);box-shadow:0 28px 56px -20px rgba(23,24,26,.22);border-color:var(--line-strong)}
.project-card[data-hidden="true"]{display:none}
.project-img{aspect-ratio:4/3;background:transparent;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.project-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease,filter .5s ease;filter:saturate(.8) brightness(.88)}
.project-img svg{width:44%;height:44%;transition:transform .5s ease}
.project-card:hover .project-img img{transform:scale(1.04);filter:saturate(.9) brightness(.92)}
.project-card:hover .project-img svg{transform:scale(1.06)}
.project-img .designator{position:absolute;top:14px;left:14px;font-family:var(--font-mono);font-size:11px;color:var(--copper-light);background:rgba(23,24,26,.65);backdrop-filter:blur(4px);padding:4px 10px;border-radius:2px}
.project-body{padding:32px 28px 28px;display:flex;flex-direction:column;flex-grow:1}
.project-body h3{font-family:var(--font-display);font-size:21px;font-weight:600;margin-bottom:12px;letter-spacing:-.01em}
.project-body p{font-size:14px;color:var(--ink-soft);line-height:1.7;flex-grow:1;margin-bottom:20px}
.tag-row{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:20px}
.tag{font-family:var(--font-mono);font-size:10.5px;padding:3px 10px;border:1px solid var(--line-strong);border-radius:20px;color:var(--ink-soft)}
.project-link{font-family:var(--font-mono);font-size:12.5px;color:var(--ink);display:inline-flex;align-items:center;gap:6px;width:fit-content;border-bottom:1px solid transparent;padding-bottom:2px;transition:all .2s ease;cursor:pointer}
.project-link:hover{gap:10px;color:var(--copper-dark);border-bottom-color:var(--copper-dark)}

/* ── Search & Filters ── */
.search-filter-row{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-bottom:48px}
.search-bar{position:relative;flex:0 0 320px}
@media(max-width:600px){.search-bar{flex:1 1 100%}}
.search-bar input{width:100%;padding:14px 20px 14px 48px;border:1px solid var(--line);border-radius:2px;font-family:var(--font-mono);font-size:13px;background:var(--surface);color:var(--ink);transition:border-color .2s ease}
.search-bar input:focus{border-color:var(--copper);outline:none}
.search-bar input::placeholder{color:var(--ink-faint)}
.search-bar svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--ink-faint);pointer-events:none}
.filter-row{display:flex;gap:10px;flex-wrap:wrap;flex:1}
.filter-btn{font-family:var(--font-mono);font-size:12px;padding:10px 20px;border:1px solid var(--line-strong);border-radius:20px;color:var(--ink-soft);background:transparent;cursor:pointer;transition:all .2s ease}
.filter-btn:hover{border-color:var(--ink);color:var(--ink)}
.filter-btn.active{background:var(--ink);border-color:var(--ink);color:#fff}

/* ── Shop PCB ── */
.shop-section{background:var(--surface-alt)}
.shop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media(max-width:960px){.shop-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.shop-grid{grid-template-columns:1fr}}
.shop-card{background:var(--surface);border:1px solid var(--line);border-radius:3px;overflow:hidden;display:flex;flex-direction:column;transition:all .3s ease;cursor:pointer}
.shop-card:hover{transform:translateY(-5px);box-shadow:0 28px 56px -20px rgba(23,24,26,.22)}
.shop-thumb{aspect-ratio:4/3;background:transparent;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.shop-thumb svg{width:48%;height:48%}
.shop-thumb img{width:100%;height:100%;object-fit:contain;padding:0;box-sizing:border-box}
.stock-badge{position:absolute;top:12px;left:12px;font-family:var(--font-mono);font-size:10px;padding:4px 10px;border-radius:20px;background:rgba(255,255,255,.92);color:var(--stock);display:flex;align-items:center;gap:5px}
.stock-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--stock)}
.stock-badge.low{color:var(--copper-dark)}.stock-badge.low::before{background:var(--copper-dark)}
.shop-body{padding:28px;display:flex;flex-direction:column;flex-grow:1}
.shop-body h3{font-family:var(--font-display);font-size:18px;font-weight:600;margin-bottom:12px;letter-spacing:-.01em}
.shop-specs{font-family:var(--font-mono);font-size:11px;color:var(--ink-faint);margin-bottom:6px;line-height:1.9}
.shop-specs span{display:block}
.shop-footer{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:20px;border-top:1px solid var(--line)}
.price{font-family:var(--font-mono);font-weight:600;font-size:18px}
.add-btn{font-family:var(--font-mono);font-size:11.5px;padding:10px 18px;background:var(--ink);color:#fff;border-radius:2px;border:none;cursor:pointer;transition:all .2s ease}
.add-btn:hover{background:var(--copper-dark);transform:translateY(-1px)}
.add-btn:active{transform:translateY(0);background:var(--graphite)}
.add-btn.added{background:var(--stock);pointer-events:none}
.qty-stepper{display:inline-flex;align-items:center;border:1px solid var(--line-strong);border-radius:2px;overflow:hidden}
.qty-btn{font-family:var(--font-mono);font-size:14px;width:26px;height:32px;background:var(--surface);border:none;cursor:pointer;color:var(--ink);transition:background .2s ease}
.qty-btn:hover{background:var(--line)}
.qty-input{width:32px;height:32px;border:none;border-left:1px solid var(--line-strong);border-right:1px solid var(--line-strong);text-align:center;font-family:var(--font-mono);font-size:12.5px;background:var(--surface);color:var(--ink);-moz-appearance:textfield}
.qty-input::-webkit-outer-spin-button,.qty-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.shop-order{display:flex;align-items:center;gap:10px}

/* ── Kits extras ── */
.kit-level{font-family:var(--font-mono);font-size:10px;letter-spacing:.05em;padding:5px 12px;border-radius:20px;width:fit-content;margin-bottom:16px;text-transform:uppercase}
.kit-level.beginner{background:#E4EFE7;color:var(--stock)}
.kit-level.intermediate{background:#F3E7D6;color:var(--copper-dark)}
.kit-level.advanced{background:#F0E1E1;color:#9A3E3E}
.kit-meta{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;margin-bottom:18px}
.kit-meta-item{font-family:var(--font-mono);font-size:11px;color:var(--ink-faint);display:flex;align-items:center;gap:7px}
.kit-meta-item svg{width:14px;height:14px;stroke:var(--copper);fill:none;stroke-width:1.5;flex-shrink:0}
.kit-desc{font-size:13.5px;color:var(--ink-soft);line-height:1.75;margin-bottom:20px;flex-grow:1}
.kit-skills{margin-bottom:18px}
.kit-skills span{font-family:var(--font-mono);font-size:10px;padding:3px 10px;background:var(--surface-alt);border-radius:20px;color:var(--ink-soft);display:inline-block;margin:0 4px 6px 0}
.kit-card{position:relative}
.kit-card .learn-badge{position:absolute;top:14px;right:14px;font-family:var(--font-mono);font-size:9px;letter-spacing:.04em;color:var(--copper-dark);background:rgba(250,250,248,.92);border:1px solid var(--line);padding:4px 10px;border-radius:2px;z-index:2}

/* ── Page intro ── */
.page-intro{max-width:680px;margin-bottom:64px;font-size:16px;color:var(--ink-soft);line-height:1.8}
.page-intro strong{color:var(--ink);font-weight:600}

/* ── About page ── */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
@media(max-width:860px){.about-grid{grid-template-columns:1fr;gap:56px}}
.about-text h1,.about-text h2{font-family:var(--font-display);font-weight:700;font-size:clamp(28px,3.6vw,42px);letter-spacing:-.02em;line-height:1.15;margin-bottom:28px}
.about-text p{font-size:15.5px;color:var(--ink-soft);line-height:1.8;margin-bottom:28px}
.about-text p:last-child{margin-bottom:0}
.about-text .accent-text{color:var(--copper-dark);font-weight:500}
.about-aside{position:sticky;top:120px}
.about-image{border-radius:4px;overflow:hidden;box-shadow:0 0 0 1px var(--line-strong),0 24px 56px -20px rgba(43,46,51,.25)}
.about-image img{width:100%;aspect-ratio:4/3;object-fit:cover;filter:saturate(.82) brightness(.9)}
.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}
.about-stat{padding:24px;border:1px solid var(--line);border-radius:3px;background:var(--surface)}
.about-stat .stat-num{font-family:var(--font-display);font-size:28px;font-weight:700;color:var(--copper-dark);margin-bottom:4px}
.about-stat .stat-label{font-family:var(--font-mono);font-size:11px;color:var(--ink-faint);letter-spacing:.03em}
.about-philosophy{margin-top:48px;padding:36px;border:1px solid var(--line);border-radius:3px;background:var(--surface);position:relative}
.about-philosophy::before{content:'';position:absolute;top:0;left:0;width:100%;height:2px;background:var(--copper)}
.about-philosophy blockquote{font-family:var(--font-display);font-size:18px;font-weight:500;line-height:1.6;color:var(--ink);font-style:italic}
.about-philosophy cite{display:block;margin-top:16px;font-family:var(--font-mono);font-size:12px;color:var(--ink-faint);font-style:normal}

/* ── Contact page ── */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr;gap:56px}}
.contact-form{display:flex;flex-direction:column;gap:24px}
.form-group label{display:block;font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--ink-soft);margin-bottom:8px;text-transform:uppercase}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:14px 18px;border:1px solid var(--line);border-radius:2px;font-family:var(--font-body);font-size:14px;color:var(--ink);background:var(--surface);transition:border-color .2s ease}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--copper);outline:none}
.form-group textarea{min-height:160px;resize:vertical}
.form-group select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%239C9A92' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}
.contact-info h3{font-family:var(--font-display);font-size:20px;font-weight:600;margin-bottom:20px;letter-spacing:-.01em}
.contact-info p{font-size:14.5px;color:var(--ink-soft);line-height:1.75;margin-bottom:24px}
.contact-detail{display:flex;align-items:center;gap:14px;margin-bottom:20px;padding:16px;border:1px solid var(--line);border-radius:3px;background:var(--surface);transition:border-color .2s ease}
.contact-detail:hover{border-color:var(--line-strong)}
.contact-detail svg{width:20px;height:20px;stroke:var(--copper);fill:none;stroke-width:1.5;flex-shrink:0}
.contact-detail span{font-family:var(--font-mono);font-size:13px;color:var(--ink-soft)}

/* ── Toast ── */
.toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%,20px);background:var(--ink);color:#fff;font-family:var(--font-mono);font-size:13px;padding:14px 24px;border-radius:3px;opacity:0;pointer-events:none;transition:all .3s ease;z-index:100;display:flex;align-items:center;gap:10px;box-shadow:0 24px 48px -16px rgba(0,0,0,.45)}
.toast.show{opacity:1;transform:translate(-50%,0);pointer-events:auto}
.toast .toast-dot{width:7px;height:7px;border-radius:50%;background:var(--copper);flex-shrink:0}

/* ── Modal ── */
.modal-overlay{position:fixed;inset:0;background:rgba(23,24,26,.5);backdrop-filter:blur(4px);z-index:90;display:none;align-items:center;justify-content:center;padding:32px;opacity:0;transition:opacity .3s ease}
.modal-overlay.open{display:flex;opacity:1}
.modal{background:var(--surface);border:1px solid var(--line);border-radius:4px;max-width:520px;width:100%;max-height:80vh;overflow-y:auto;padding:40px;position:relative;transform:translateY(20px);transition:transform .35s cubic-bezier(.23,1,.32,1)}
.modal-overlay.open .modal{transform:translateY(0)}
.modal-close{position:absolute;top:16px;right:16px;background:none;border:none;cursor:pointer;font-size:24px;color:var(--ink-soft);padding:4px 8px;transition:color .2s ease;line-height:1}
.modal-close:hover{color:var(--ink)}
.modal h2{font-family:var(--font-display);font-size:24px;font-weight:700;margin-bottom:8px}
.modal .modal-sub{font-size:14px;color:var(--ink-soft);margin-bottom:28px}
.modal-item{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line);gap:12px}
.modal-item:last-child{border-bottom:none}
.modal-item-info{flex:1}
.modal-item-name{font-family:var(--font-display);font-size:14px;font-weight:600}
.modal-item-price{font-family:var(--font-mono);font-size:12px;color:var(--ink-soft);margin-top:2px}
.modal-item-remove{background:none;border:1px solid var(--line-strong);border-radius:2px;font-family:var(--font-mono);font-size:11px;padding:6px 12px;cursor:pointer;color:var(--ink-soft);transition:all .2s ease}
.modal-item-remove:hover{border-color:var(--ink);color:var(--ink)}
.modal-total{display:flex;justify-content:space-between;align-items:center;padding-top:20px;margin-top:8px;border-top:2px solid var(--ink);font-family:var(--font-mono);font-size:16px;font-weight:600}
.modal-empty{text-align:center;padding:48px 0;color:var(--ink-faint);font-size:14px}
.modal-checkout-btn{display:block;width:100%;margin-top:24px;font-family:var(--font-mono);font-size:13px;padding:16px;background:var(--ink);color:#fff;border:none;border-radius:2px;cursor:pointer;transition:all .2s ease;text-align:center}
.modal-checkout-btn:hover{background:var(--copper-dark);transform:translateY(-1px)}

/* ── Product Modal ── */
.product-modal .modal{max-width:800px}
.product-modal-hero{width:calc(100% + 80px);margin:-40px -40px 28px;aspect-ratio:16/8;overflow:hidden;position:relative}
.product-modal-hero img{width:100%;height:100%;object-fit:cover;filter:contrast(1.06) saturate(.85) brightness(.92)}
.product-modal-hero-icon{background:linear-gradient(135deg,var(--graphite) 0%,#1c1e21 100%);display:flex;align-items:center;justify-content:center}
.product-modal-hero-icon svg{width:26%;height:26%}
.product-modal-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.product-modal-meta-item{display:flex;align-items:center;gap:7px;font-family:var(--font-mono);font-size:11.5px;color:var(--ink-soft);background:var(--surface-alt);border:1px solid var(--line);border-radius:20px;padding:6px 14px}
.product-modal-meta-item svg{width:14px;height:14px;flex-shrink:0;stroke:var(--copper-dark)}
.product-modal-meta-item strong{color:var(--ink);font-weight:600}
.product-modal-header{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:24px}
.product-modal-header h2{margin-bottom:4px}
.product-modal-stock{font-family:var(--font-mono);font-size:11px;padding:4px 12px;border-radius:20px;white-space:nowrap}
.product-modal-stock.in-stock{background:#E4EFE7;color:var(--stock)}
.product-modal-stock.low-stock{background:#F3E7D6;color:var(--copper-dark)}
.product-modal-desc{font-size:14.5px;color:var(--ink-soft);line-height:1.8;margin-bottom:28px}
.product-modal-section{margin-bottom:24px}
.product-modal-section h4{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--copper-dark);text-transform:uppercase;margin-bottom:12px}
.product-modal-specs{display:grid;grid-template-columns:1fr 1fr;gap:8px 24px}
.product-modal-spec{font-family:var(--font-mono);font-size:12px;color:var(--ink-soft);display:flex;gap:8px}
.product-modal-spec strong{color:var(--ink);font-weight:600}
.product-modal-components{list-style:none;padding:0}
.product-modal-components li{font-family:var(--font-mono);font-size:12.5px;color:var(--ink-soft);padding:8px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}
.product-modal-components li:last-child{border-bottom:none}
.product-modal-components li::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--copper);flex-shrink:0}
.product-modal-tags{display:flex;gap:8px;flex-wrap:wrap}
.product-modal-tags .tag{font-size:11px;padding:4px 12px}
.product-modal-footer{margin-top:32px;padding-top:24px;border-top:2px solid var(--ink);display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.product-modal-physical-note{margin-top:28px;font-size:12.5px;color:var(--ink-soft);font-style:italic}
.product-modal-price{font-family:var(--font-display);font-size:28px;font-weight:700}
.product-modal-add-btn{font-family:var(--font-mono);font-size:13px;padding:14px 28px;background:var(--ink);color:#fff;border-radius:2px;border:none;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;gap:8px}
.product-modal-add-btn:hover{background:var(--copper-dark);transform:translateY(-1px)}
.product-modal-add-btn:active{transform:translateY(0);background:var(--graphite)}
.product-modal-github-btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:13px;padding:14px 28px;background:var(--ink);color:#fff;border-radius:2px;border:none;cursor:pointer;transition:all .2s ease;text-decoration:none}
.product-modal-github-btn:hover{background:var(--copper-dark);transform:translateY(-1px)}
.product-modal-steps{display:flex;flex-direction:column;gap:16px}
.product-modal-step{display:flex;gap:14px;align-items:flex-start}
.product-modal-step-num{flex-shrink:0;width:24px;height:24px;border-radius:50%;border:1.5px solid var(--copper);color:var(--copper-dark);font-family:var(--font-mono);font-size:11px;font-weight:600;display:flex;align-items:center;justify-content:center}
.product-modal-step strong{font-family:var(--font-display);font-size:14px;font-weight:600;color:var(--ink)}
.product-modal-step p{font-size:13.5px;color:var(--ink-soft);line-height:1.7;margin-top:4px}
.product-modal-gpio{display:grid;grid-template-columns:1fr 1fr;gap:8px 24px}
.product-modal-gpio-item{font-family:var(--font-mono);font-size:12px;color:var(--ink-soft);display:flex;gap:8px}
.product-modal-gpio-item strong{color:var(--ink);font-weight:600}
.product-modal-firmware details{background:var(--surface-alt);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.product-modal-firmware summary{font-family:var(--font-mono);font-size:12px;padding:14px 18px;cursor:pointer;color:var(--ink);display:flex;align-items:center;gap:8px;transition:background .2s ease;list-style:none}
.product-modal-firmware summary::-webkit-details-marker{display:none}
.product-modal-firmware summary::before{content:'';width:8px;height:8px;border-right:1.5px solid var(--copper);border-bottom:1.5px solid var(--copper);transform:rotate(-45deg);transition:transform .25s ease;flex-shrink:0}
.product-modal-firmware details[open] summary::before{transform:rotate(45deg)}
.product-modal-firmware summary:hover{background:rgba(0,0,0,.03)}
.product-modal-firmware .code-container{max-height:400px;overflow-y:auto;background:var(--graphite);margin:0}
.product-modal-firmware pre{margin:0;padding:20px;overflow-x:auto}
.product-modal-firmware code{font-family:var(--font-mono);font-size:11.5px;line-height:1.7;color:#d4d4d4;display:block;white-space:pre}
.product-modal-firmware .download-btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;padding:10px 18px;margin:12px 0 0;background:var(--surface);color:var(--ink);border:1px solid var(--line-strong);border-radius:var(--radius);cursor:pointer;transition:all .2s ease}
.product-modal-firmware .download-btn:hover{border-color:var(--copper-dark);color:var(--copper-dark);transform:translateY(-1px)}
.product-modal-firmware .download-btn svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.product-modal-footer-project{justify-content:flex-end}
.product-modal-github-link{font-family:var(--font-mono);font-size:12.5px;color:var(--ink-soft);text-decoration:none;display:inline-flex;align-items:center;gap:6px;transition:color .2s ease}
.product-modal-github-link:hover{color:var(--copper-dark)}

/* ── Shipping info in cart ── */
.shipping-info{margin-top:20px;padding:16px;background:var(--surface-alt);border-radius:3px;border:1px solid var(--line)}
.shipping-info p{font-family:var(--font-mono);font-size:11.5px;color:var(--ink-soft);line-height:1.7;margin-bottom:6px}
.shipping-info p:last-child{margin-bottom:0}
.shipping-info .shipping-free{color:var(--stock);font-weight:600}
.shipping-info .shipping-fee{color:var(--copper-dark);font-weight:600}

/* ── Footer ── */
footer{background:var(--ink);color:#EDEBE4;padding:0}
.footer-top{border-bottom:1px solid rgba(255,255,255,.1);padding:88px 0 64px}
.footer-top .wrap{display:grid;grid-template-columns:1.6fr .9fr 1fr 1fr 1fr 1fr;gap:32px}
@media(max-width:1100px){.footer-top .wrap{grid-template-columns:1fr 1fr 1fr;gap:32px}}
@media(max-width:900px){.footer-top .wrap{grid-template-columns:1fr 1fr;gap:36px}}
@media(max-width:560px){.footer-top .wrap{grid-template-columns:1fr}}
.footer-brand .foot-title{font-family:var(--font-display);font-size:26px;font-weight:700;margin-bottom:16px}
.footer-brand .foot-desc{color:#8A8780;font-size:14px;line-height:1.75;max-width:300px;margin-bottom:24px}
.footer-brand .foot-philosophy{font-family:var(--font-mono);font-size:11px;color:var(--copper-light);letter-spacing:.02em;line-height:1.7;font-style:italic;padding-left:16px;border-left:2px solid rgba(201,124,61,.3)}
footer h4{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--copper-light);margin-bottom:20px;text-transform:uppercase}
footer ul li{margin-bottom:14px}
footer ul a{color:#A7A59C;font-size:14px;transition:color .2s ease;cursor:pointer}
footer ul a:hover{color:var(--copper-light)}
.footer-bottom{padding:28px 0}
.footer-bottom .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;font-family:var(--font-mono);font-size:11px;color:#6B6860}
.footer-bottom a{color:#8A8780;transition:color .2s ease;cursor:pointer}
.footer-bottom a:hover{color:var(--copper-light)}

.nav-disabled{opacity:.45;cursor:not-allowed!important;pointer-events:auto}
.preparation-card{max-width:760px;margin:0 auto;padding:64px 48px;border:1px solid var(--line-strong);background:var(--surface);text-align:center;position:relative;overflow:hidden}
.preparation-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--copper)}
.preparation-icon{width:64px;height:64px;margin:0 auto 24px;border:1px solid var(--line-strong);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--copper-dark);font-size:26px}
.preparation-card h3{font-family:var(--font-display);font-size:28px;margin-bottom:14px}
.preparation-card p{color:var(--ink-soft);max-width:560px;margin:0 auto;line-height:1.8}
.preparation-status{display:inline-block;margin-top:24px;padding:7px 14px;border:1px solid var(--copper-light);color:var(--copper-dark);font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.05em}
.stock-badge{display:none!important}
.product-modal-stock{display:none!important}
@media(max-width:600px){.preparation-card{padding:48px 24px}}


/* =============================================================
   PERFORMANCE + RESPONSIVE OPTIMISATION
   Requested scope: cards, JS load, transitions, scroll, external
   CSS/JS, image dimensions, filenames, fonts, responsive breakpoints.
   ============================================================= */

/* Keep images stable before they load. */
img { max-width:100%; height:auto; }
.project-img, .shop-thumb { overflow:hidden; }
.project-img img, .shop-thumb img { width:100%; height:100%; object-fit:cover; display:block; }

/* Less vertical waste in decorative transitions. */
@media (max-width: 1024px) {
  .section-transition { height:48px; }
}
@media (max-width: 767px) {
  .section-transition { height:28px; }
  .section-transition .st-trace { stroke-dasharray:600; stroke-dashoffset:600; }
  .section-transition.is-visible .st-trace { animation-duration:1s; }
}

/* Compact cards: preserve 2-column mobile layout without huge cards. */
@media (max-width: 767px) {
  section.block { padding:64px 0; }
  .section-head { margin-bottom:28px; }
  .section-title { font-size:clamp(28px,8vw,38px); }
  .section-desc, .page-intro { font-size:14px; line-height:1.6; }

  .project-grid, .shop-grid {
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:12px;
  }
  .project-img, .shop-thumb { aspect-ratio:4 / 3; }
  .project-body, .shop-body { padding:12px; }
  .project-body h3, .shop-body h3 { font-size:15px; line-height:1.2; margin-bottom:7px; }
  .project-body p { font-size:11.5px; line-height:1.45; margin-bottom:10px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
  .shop-specs { font-size:9.5px; line-height:1.45; }
  .tag-row { gap:4px; }
  .tag { font-size:8.5px; padding:2px 6px; }
  .project-link { font-size:10px; }
  .stock-badge { top:7px; left:7px; font-size:8px; padding:3px 7px; }
  .project-img .designator { top:7px; left:7px; font-size:8px; padding:3px 6px; }
  .shop-footer { gap:7px; }
  .price { font-size:14px; }
  .add-btn { font-size:9px; padding:7px 9px; }
  .qty-stepper { transform:scale(.88); transform-origin:right center; }

  .why-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
  .why-card { padding:14px; }
  .why-card h3 { font-size:14px; margin-bottom:7px; }
  .why-card p { font-size:11px; line-height:1.5; }

  .search-filter-row { gap:10px; }
  .search-bar input { padding:11px 14px 11px 40px; font-size:11px; }
  .filter-row { overflow-x:auto; flex-wrap:nowrap; padding-bottom:3px; scrollbar-width:none; }
  .filter-row::-webkit-scrollbar { display:none; }
  .filter-btn { flex:0 0 auto; font-size:9.5px; padding:7px 11px; }
}

/* Very small phones: keep the two-column layout usable. */
@media (max-width: 374px) {
  .wrap { padding:0 14px; }
  section.block { padding:52px 0; }
  .project-grid, .shop-grid { gap:9px; }
  .project-body, .shop-body { padding:9px; }
  .project-body h3, .shop-body h3 { font-size:13px; }
  .project-body p { font-size:10px; }
  .tag { font-size:7.5px; padding:2px 5px; }
  .why-card { padding:11px; }
  .why-card h3 { font-size:12px; }
  .why-card p { font-size:10px; }
}

/* Tablet / small laptop: avoid jumping directly from 3 to 1 column. */
@media (min-width: 768px) and (max-width: 1023px) {
  .wrap { padding:0 28px; }
  .project-grid, .shop-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:20px; }
  .project-img, .shop-thumb { aspect-ratio:4 / 3; }
}

/* Desktop stays spacious and unchanged in principle. */
@media (min-width: 1024px) {
  .project-img, .shop-thumb { aspect-ratio:3 / 2; }
}

/* Reduce motion on touch devices; keep content fully usable. */
@media (max-width: 767px) {
  .hero-image-wrap .hover-glow,
  .hero-image-wrap .particle-canvas { display:none !important; }
  .marquee-track { animation-duration:45s; }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation:none !important; }
  .section-transition.is-visible .st-trace { animation:none !important; stroke-dashoffset:0; }
}

/* Content pages / project status */
.page-intro{max-width:820px;color:var(--ink-soft);line-height:1.8;margin:0 auto 48px;font-size:16px}
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.faq-list details{border:1px solid var(--line);background:var(--surface);border-radius:3px;overflow:hidden}
.faq-list summary{cursor:pointer;padding:18px 22px;font-family:var(--font-display);font-size:16px;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:'+';font-family:var(--font-mono);color:var(--copper);font-size:20px;flex-shrink:0}
.faq-list details[open] summary::after{content:'−'}
.faq-list details p{padding:0 22px 20px;color:var(--ink-soft);line-height:1.8;margin:0}
.product-status{display:inline-flex;align-items:center;gap:8px;margin:14px 0;padding:8px 12px;border:1px solid var(--line);font-family:var(--font-mono);font-size:11px;background:var(--surface-alt)}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--stock);display:inline-block}
.status-development .status-dot{background:var(--copper)}
.status-experimental .status-dot{background:#9a6b00}
.safety-notice{margin:16px 0;padding:16px;border-left:3px solid var(--copper);background:var(--surface-alt);color:var(--ink-soft);line-height:1.7;font-size:13px}
.project-resource-note{font-family:var(--font-mono);font-size:12px;color:var(--ink-soft)}
.checkout-note{font-family:var(--font-mono);font-size:11.5px;line-height:1.7;color:var(--ink-soft);margin-top:12px}


/* Brochage GPIO — présentation en tableaux */
.gpio-note {
  margin: 12px 0 16px;
  padding: 13px 15px;
  border: 1px solid rgba(201,124,61,.35);
  border-radius: 10px;
  background: rgba(201,124,61,.08);
  line-height: 1.55;
}
.gpio-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 14px;
}
.gpio-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 12px;
  min-width: 420px;
}
.gpio-table th,
.gpio-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.gpio-table th {
  font-size: 11px;
  font-weight: 700;
  color: var(--ink);
  background: var(--surface-alt);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.gpio-table td {
  color: var(--ink-soft);
}
.gpio-table tbody tr:last-child td {
  border-bottom: 0;
}
.gpio-table td:nth-child(n+2) {
  white-space: nowrap;
}
.gpio-table .gpio-required td {
  font-weight: 600;
}
.gpio-subtitle {
  margin: 18px 0 8px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}
@media (max-width: 520px) {
  .gpio-table {
    min-width: 360px;
  }
  .gpio-table th,
  .gpio-table td {
    padding: 9px 10px;
  }
}


/* GPIO MODERN DESIGN v2 */
.gpio-table-wrap {
  width: 100%;
  margin: 1rem 0 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--border-color, rgba(127,127,127,.22));
  border-radius: 14px;
  background: var(--card-bg, rgba(127,127,127,.06));
}
.gpio-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 420px;
  font-size: .95rem;
}
.gpio-table thead th {
  text-align: left;
  font-weight: 700;
  padding: .8rem 1rem;
  background: rgba(127,127,127,.10);
  border-bottom: 1px solid var(--border-color, rgba(127,127,127,.22));
  white-space: nowrap;
}
.gpio-table tbody td {
  padding: .72rem 1rem;
  border-bottom: 1px solid var(--border-color, rgba(127,127,127,.14));
  vertical-align: middle;
}
.gpio-table tbody tr:last-child td {
  border-bottom: 0;
}
.gpio-table tbody tr:hover {
  background: rgba(127,127,127,.06);
}
.gpio-table td:last-child {
  font-weight: 650;
}
.gpio-table code,
.gpio-pin {
  display: inline-flex;
  align-items: center;
  padding: .22rem .55rem;
  border-radius: 7px;
  background: rgba(127,127,127,.12);
  border: 1px solid rgba(127,127,127,.16);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: .86em;
  font-weight: 700;
}
.gpio-status {
  display: inline-flex;
  align-items: center;
  padding: .25rem .6rem;
  border-radius: 999px;
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .02em;
  white-space: nowrap;
}
.gpio-status.required {
  background: rgba(34,197,94,.14);
  border: 1px solid rgba(34,197,94,.28);
}
.gpio-status.optional {
  background: rgba(127,127,127,.10);
  border: 1px solid rgba(127,127,127,.20);
}
.gpio-section-title {
  margin: 1.35rem 0 .55rem;
  font-size: 1rem;
  font-weight: 800;
}
.gpio-section-note {
  margin: -.15rem 0 .7rem;
  opacity: .78;
  font-size: .9rem;
}
.gpio-table .module-name {
  font-weight: 750;
}
@media (max-width: 600px) {
  .gpio-table {
    min-width: 360px;
    font-size: .9rem;
  }
  .gpio-table thead th,
  .gpio-table tbody td {
    padding: .65rem .7rem;
  }
}

/* GPIO PER DEVICE BLOCKS v1 */
.gpio-device-block {
  margin: 0 0 1.15rem;
}
.gpio-device-block:last-child {
  margin-bottom: 0;
}
.gpio-section-title {
  margin: 0 0 .55rem;
  font-size: 1rem;
  font-weight: 800;
}
.gpio-note {
  margin: 0 0 1.1rem;
}

/* DOCUMENTATION + NEWSLETTER V5 */
.project-documentation { margin-top: 1rem; }
.project-doc-grid {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1rem;
}
.project-doc-card {
  padding:1rem;
  border:1px solid var(--border-color,rgba(127,127,127,.18));
  border-radius:14px;
  background:var(--card-bg,rgba(127,127,127,.045));
}
.project-doc-card h5 { margin:0 0 .55rem; font-size:1rem; }
.project-doc-card p { margin:.45rem 0; line-height:1.55; }
.project-doc-card ul,.project-doc-card ol { margin:.5rem 0 0; padding-left:1.25rem; }
.project-doc-card li { margin:.35rem 0; line-height:1.45; }
.project-doc-wide { grid-column:1/-1; }
.doc-intro { opacity:.75; font-size:.9rem; }
.doc-callout {
  margin-top:.8rem; padding:.7rem .8rem; border-radius:10px;
  background:rgba(127,127,127,.08); font-size:.88rem;
}
.troubleshooting-table { display:grid; gap:1px; overflow:hidden; border-radius:10px; border:1px solid var(--border-color,rgba(127,127,127,.18)); }
.tr-head,.tr-row { display:grid; grid-template-columns:1fr 1.2fr 1.4fr; gap:1rem; padding:.75rem; }
.tr-head { font-weight:800; background:rgba(127,127,127,.1); }
.tr-row { background:rgba(127,127,127,.035); border-top:1px solid var(--border-color,rgba(127,127,127,.12)); }
.newsletter-section { background:var(--bg); }
.newsletter-box {
  display:grid; grid-template-columns:1.1fr .9fr; gap:2rem; align-items:center;
  padding:2rem; border:1px solid var(--border-color,rgba(127,127,127,.2));
  border-radius:18px; background:var(--card-bg,rgba(127,127,127,.05));
}
.newsletter-copy h2 { margin:.35rem 0 .7rem; }
.newsletter-copy p { max-width:650px; line-height:1.6; }
.newsletter-copy small { opacity:.7; }
.newsletter-form label { display:block; margin-bottom:.45rem; font-weight:700; }
.newsletter-input-row { display:flex; gap:.6rem; }
.newsletter-input-row input {
  flex:1; min-width:0; padding:.8rem .9rem; border-radius:10px;
  border:1px solid var(--border-color,rgba(127,127,127,.25));
  background:var(--bg,#fff); color:inherit;
}
.newsletter-status { min-height:1.3em; margin:.6rem 0 0; font-size:.9rem; opacity:.8; }
@media (max-width:700px) {
  .project-doc-grid,.newsletter-box { grid-template-columns:1fr; }
  .tr-head { display:none; }
  .tr-row { grid-template-columns:1fr; gap:.25rem; }
  .newsletter-input-row { flex-direction:column; }
}

/* ── Release notifications ── */
.section-head { gap: 20px; }
.section-notify-btn {
  flex: 0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:11px 15px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:var(--surface);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.01em;
  cursor:pointer;
  transition:transform .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.section-notify-btn:hover {
  transform:translateY(-2px);
  border-color:var(--copper);
  box-shadow:0 10px 26px -16px rgba(201,124,61,.6);
  background:rgba(201,124,61,.05);
}
.notify-icon { color:var(--copper); font-size:9px; animation:pulse 2.2s ease-in-out infinite; }
.notify-modal { max-width:560px; }
.notify-modal .section-eyebrow { display:block; margin-bottom:12px; }
.notify-lead { color:var(--ink-soft); line-height:1.65; margin:0 0 24px; }
.notify-form { display:grid; gap:10px; }
.notify-form label { font-family:var(--font-mono); font-size:11px; color:var(--ink-soft); }
.notify-form input {
  width:100%; box-sizing:border-box; padding:13px 14px;
  border:1px solid var(--line-strong); border-radius:8px;
  background:var(--bg); color:var(--ink); font:inherit;
  outline:none; transition:border-color .2s ease,box-shadow .2s ease;
}
.notify-form input:focus { border-color:var(--copper); box-shadow:0 0 0 3px rgba(201,124,61,.10); }
.notify-form .btn { justify-content:center; margin-top:5px; }
.notify-form .btn:disabled { opacity:.6; cursor:wait; }

/* Guide pratique: denser, clearer, more visual */
.project-documentation {
  margin-top:1.35rem;
  padding-top:1.35rem;
  border-top:1px solid var(--line);
}
.project-documentation > h4 {
  display:flex; align-items:center; gap:10px;
  margin:0 0 14px;
  font-size:1.15rem;
}
.project-documentation > h4::before {
  content:'01';
  display:inline-grid; place-items:center;
  width:30px; height:30px; border-radius:8px;
  background:var(--ink); color:#fff;
  font:700 10px var(--font-mono);
}
.project-doc-grid { gap:12px; }
.project-doc-card {
  position:relative; padding:1.15rem 1.2rem;
  border:1px solid var(--line);
  border-radius:14px;
  background:linear-gradient(145deg,var(--surface),rgba(201,124,61,.025));
  box-shadow:0 8px 28px -24px rgba(23,24,26,.45);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.project-doc-card:hover {
  transform:translateY(-2px);
  border-color:var(--copper-light);
  box-shadow:0 16px 34px -24px rgba(201,124,61,.35);
}
.project-doc-card h5 {
  display:flex; align-items:center; gap:8px;
  margin:0 0 .55rem; font-size:1rem;
}
.project-doc-card h5::before { content:'↳'; color:var(--copper); font-family:var(--font-mono); }
.project-doc-card ul,.project-doc-card ol { margin:.65rem 0 0; }
.project-doc-card li::marker { color:var(--copper); font-weight:700; }
.doc-callout {
  border-left:3px solid var(--copper);
  border-radius:0 10px 10px 0;
  background:rgba(201,124,61,.07);
}
.troubleshooting-table { box-shadow:inset 0 0 0 1px rgba(255,255,255,.02); }
.tr-head { font-family:var(--font-mono); font-size:.72rem; letter-spacing:.04em; text-transform:uppercase; }
@media (max-width:700px) {
  .section-head { align-items:flex-start; }
  .section-notify-btn { width:100%; justify-content:center; }
  .project-documentation > h4::before { width:28px;height:28px; }
}


/* GPIO : les blocs sont disposés côte à côte quand l'espace le permet. */
.product-modal-section > .gpio-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  align-items: start;
}
.product-modal-section > .gpio-grid .gpio-device-block {
  margin: 0;
  min-width: 0;
}
.product-modal-section > .gpio-grid .gpio-device-block.gpio-wide {
  grid-column: 1 / -1;
}
@media (max-width: 760px) {
  .product-modal-section > .gpio-grid { grid-template-columns: 1fr; }
  .product-modal-section > .gpio-grid .gpio-device-block.gpio-wide { grid-column: auto; }
}

.product-modal-section > .gpio-grid > .gpio-note { grid-column: 1 / -1; }