:root{--bg:#fbf8f4;--surface:#fff;--surface-2:#f4efe8;--text:#1f1a16;--muted:#5f554d;--line:#e7ded3;--accent:#b93d0b;--on-accent:#fff;
--accent-soft:#ffedd5;--ok:#166534;--ok-soft:#dcfce7;--soon:#854d0e;--soon-soft:#fef3c7;--shadow:0 1px 2px #0000000d,0 10px 30px #2b1a0b14;
--font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#14110f;--surface:#1d1916;--surface-2:#27211d;--text:#f3ece4;--muted:#b9ada1;--line:#362d27;
--accent:#fb923c;--on-accent:#1f1a16;--accent-soft:#3b2416;--ok:#4ade80;--ok-soft:#163222;--soon:#facc15;--soon-soft:#3a2f10;--shadow:0 1px 2px #0006,0 10px 30px #0006;color-scheme:dark}}
:root[data-theme=dark]{--bg:#14110f;--surface:#1d1916;--surface-2:#27211d;--text:#f3ece4;--muted:#b9ada1;--line:#362d27;
--accent:#fb923c;--on-accent:#1f1a16;--accent-soft:#3b2416;--ok:#4ade80;--ok-soft:#163222;--soon:#facc15;--soon-soft:#3a2f10;--shadow:0 1px 2px #0006,0 10px 30px #0006;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased}
a{color:var(--accent)}a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:8px}
img{max-width:100%;height:auto;display:block}
.ic{width:1.15em;height:1.15em;vertical-align:-.2em;flex:none}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface);padding:8px 12px;z-index:10}.skip:focus{left:8px}
.muted{color:var(--muted)}.small{font-size:.9rem}
.top{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:20px;height:60px}
.brand{display:flex;gap:8px;align-items:center;font-weight:700;color:var(--text);text-decoration:none;font-size:1.05rem}.brand .ic{color:var(--accent)}
nav{display:flex;gap:4px;margin-left:auto}nav a{color:var(--text);text-decoration:none;padding:6px 10px;border-radius:8px;font-weight:500}nav a:hover{background:var(--surface-2)}
.tools{display:flex;gap:8px}
.lang,.theme{display:inline-flex;align-items:center;gap:6px;min-width:44px;height:40px;padding:0 10px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--text);text-decoration:none;font:600 .85rem var(--font);cursor:pointer;justify-content:center}
.i-sun{display:none}:root[data-theme=dark] .i-sun{display:inline}:root[data-theme=dark] .i-moon{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .i-sun{display:inline}:root:not([data-theme=light]) .i-moon{display:none}}
.hero{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center;padding-top:56px;padding-bottom:40px}
.kicker{display:inline-block;margin:0 0 12px;padding:2px 10px;border-radius:999px;background:var(--accent-soft);color:var(--text);font-size:.8rem;font-weight:600}
h1{font-size:clamp(2rem,4.2vw,3.1rem);line-height:1.1;margin:0 0 16px;letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.2;margin:0 0 6px;letter-spacing:-.01em}
h3{font-size:1.05rem;margin:10px 0 4px}
.lead{font-size:1.1rem;color:var(--muted);margin:0 0 24px}
.ctas{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 10px}
.btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text);font-weight:600;text-decoration:none}
.btn:hover{border-color:var(--accent)}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.shots{position:relative;padding-bottom:30px}
.frame{border-radius:14px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);background:var(--surface)}
.phone{position:absolute;right:-8px;bottom:0;width:30%;border-radius:22px;border:6px solid var(--text)}
.sec{padding-top:56px;padding-bottom:24px;scroll-margin-top:70px}
.grid{list-style:none;padding:0;margin:24px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:var(--shadow)}
.card p{margin:0 0 30px;color:var(--muted);font-size:.95rem}
.fi{width:36px;height:36px;padding:7px;border-radius:10px;background:var(--accent-soft);color:var(--accent)}
.card.soon{border-style:dashed}.card.soon .fi{background:var(--soon-soft);color:var(--soon)}
.badge{position:absolute;left:20px;bottom:14px;font-size:.75rem;font-weight:700;padding:2px 9px;border-radius:999px}
.b-ok{background:var(--ok-soft);color:var(--ok)}.b-soon{background:var(--soon-soft);color:var(--soon)}.b-part{background:var(--accent-soft);color:var(--text)}
figcaption{font-size:.9rem;color:var(--muted);margin-top:8px}
.band{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;background:var(--surface-2);border-radius:18px;padding:32px;margin-top:56px}
.band p{margin:6px 0 0;max-width:60ch}
.stack{list-style:none;padding:0;margin:24px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.stack li{border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:var(--surface)}.stack strong{display:block}.stack span{color:var(--muted);font-size:.9rem}
.repo{margin-top:20px}
.app{display:flex;gap:18px;align-items:flex-start;padding-bottom:20px}.app p{margin:4px 0 0}.app .badge{position:static;margin-left:auto;white-space:nowrap}
.foot{margin-top:64px;border-top:1px solid var(--line);padding:24px 0 40px}.foot p{margin:4px 0}
.tbl{overflow-x:auto}table{border-collapse:collapse;width:100%;margin:20px 0;font-size:.92rem}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}
@media (max-width:900px){.hero{grid-template-columns:1fr;gap:28px;padding-top:32px}nav{display:none}.tools{margin-left:auto}}
@media (max-width:560px){.band{padding:22px}.app{flex-wrap:wrap}.app .badge{margin-left:0}}
.foot-cols{display:flex;flex-wrap:wrap;gap:32px;margin-bottom:20px}.foot .h3{font-size:1rem;margin:0 0 10px}.links{display:flex;flex-wrap:wrap;gap:10px}.btn.dis{opacity:.7;cursor:default;border-style:dashed}.btn.dis .badge{position:static;margin:0}
/* ---- hero simulators: the real app (landing/demo) inside the browser and phone frames ---- */
.mock{font-size:.82rem;line-height:1.4}
.desk.mock{display:flex;flex-direction:column;height:440px}
.mbar{display:flex;align-items:center;gap:6px;padding:8px 12px;border-bottom:1px solid var(--line);background:var(--surface-2)}.mbar i{width:9px;height:9px;border-radius:50%;background:var(--line)}.mbar span{margin-left:10px;color:var(--muted);font-size:.75rem}
.mphone{height:auto;display:flex;flex-direction:column;width:clamp(190px,17vw,230px);bottom:-20px}.mphone .mscreen{flex:none;aspect-ratio:390/844}
.mhint{margin-top:34px;max-width:62%}
.mock :focus-visible{outline:2px solid var(--accent);outline-offset:1px;border-radius:6px}
@media (max-width:900px){.desk.mock{height:400px}.mphone{position:relative;right:auto;bottom:auto;width:min(230px,66%);height:auto;margin:16px auto 0}.mhint{max-width:none;margin-top:12px}}
/* ---- features, gallery, calculator ---- */
.card .more{display:block;background:none;border:0;padding:4px 0;margin:-22px 0 30px;color:var(--accent);font-weight:600;font-size:.88rem;min-height:32px}
.fmore{margin:-24px 0 30px!important;color:var(--text)!important;display:flex;gap:10px;align-items:flex-start}.fmore[hidden]{display:none}
.pulse{flex:none;width:10px;height:10px;margin-top:6px;border-radius:50%;background:var(--accent)}
.card{transition:transform .2s,border-color .2s}.card:hover,.card.open{border-color:var(--accent)}
.more,.zoom,.car-btn,.car-dot,.tourbtn{font:inherit;color:inherit;cursor:pointer}
.zoom{display:block;width:100%;padding:0;border:0;background:none;cursor:zoom-in;border-radius:12px}.zoom img{transition:transform .2s}.zoom:hover img{transform:scale(1.015)}
.lb{max-width:min(1100px,94vw);width:100%;padding:16px;border:1px solid var(--line);border-radius:16px;background:var(--surface);color:var(--text)}.lb::backdrop{background:#000a}
.lb figure{margin:0}.lb img{width:100%;height:auto;border-radius:10px}.lbnav{display:flex;justify-content:space-between;gap:8px;margin-top:12px;flex-wrap:wrap}
.calc{display:flex;flex-wrap:wrap;gap:20px 32px;align-items:center;justify-content:space-between}.calc h2{margin-top:0}.calc p{margin:0}
.calcf{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end}.calcf label{display:flex;flex-direction:column;gap:4px;font-weight:600;font-size:.9rem}
.calcf select,.calcf input{font:inherit;min-height:44px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text)}.calcf input{width:90px}
.calcf output{display:flex;gap:16px;padding:8px 14px;border-radius:12px;background:var(--surface-2)}.calcf output span{display:flex;flex-direction:column;font-size:.82rem;color:var(--muted)}.calcf output b{font-size:1.15rem;color:var(--text)}
@media (prefers-reduced-motion:no-preference){
.js .rv-on{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}.js .rv-on.in{opacity:1;transform:none}
.card.open .pulse{animation:pulse 1.4s ease-in-out infinite}@keyframes pulse{50%{transform:scale(1.6);opacity:.5}}
.card:hover{transform:translateY(-2px)}}
@media (min-width:901px){.desk.mock{margin-right:17%}.mphone{right:-12px}.mhint{max-width:calc(100% - clamp(190px,17vw,230px) - 4px)}}
.mscreen{position:relative;flex:1;min-height:0;overflow:hidden;background:var(--bg)}
.mscreen iframe{position:absolute;top:0;left:0;border:0;width:1280px;height:100%;transform-origin:0 0;transform:scale(var(--k,.5));background:var(--bg);color-scheme:normal}
.mphone .mscreen iframe{width:390px}
.mtap{position:absolute;z-index:2;width:28px;height:28px;margin:-14px 0 0 -14px;border-radius:50%;background:color-mix(in srgb,var(--accent) 35%,transparent);border:2px solid var(--accent);pointer-events:none;opacity:0}
.mtap.on{animation:tap .7s ease-out}@keyframes tap{0%{opacity:0;transform:scale(.4)}25%{opacity:1}100%{opacity:0;transform:scale(1.5)}}
.tourbtn{display:inline-flex;align-items:center;gap:6px;margin-left:6px;padding:2px 10px;min-height:32px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-weight:600;font-size:.85rem;vertical-align:middle}
.tourbtn .ic,.car-btn .ic{width:15px;height:15px}
.tourbtn:hover,.car-btn:hover{border-color:var(--accent)}
.i-play{display:none}.off .i-play{display:inline}.off .i-pause{display:none}
/* ---- screenshot carousel ---- */
.car{margin-top:24px;position:relative}
.car-track{list-style:none;margin:0;padding:0;display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;overscroll-behavior-x:contain;border-radius:14px;touch-action:pan-x pan-y}
.car-track::-webkit-scrollbar{display:none}
.car-track:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.car-s{flex:0 0 100%;min-width:0;scroll-snap-align:center;scroll-snap-stop:always;position:relative;display:flex;justify-content:center;padding:4px 2px}
.car-s>figure{margin:0;width:min(100%,900px)}
.car-s img{display:block;width:100%;height:auto;aspect-ratio:8/5;border-radius:12px;border:1px solid var(--line);box-shadow:var(--shadow);background:var(--surface-2)}
.car-s figcaption{text-align:center}
.car-mob>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(8px,3vw,28px);width:min(100%,640px);margin:0 auto}
.car-mob>div figure{margin:0}.car-mob>div img{aspect-ratio:300/650;object-fit:cover;object-position:top}
.car-ctl{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:14px;flex-wrap:wrap}
.car-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--surface)}
.car-dots{display:flex;gap:2px;flex-wrap:wrap;justify-content:center}
.car-dot{width:28px;height:44px;padding:0;border:0;background:none;position:relative}
.car-dot::before{content:"";position:absolute;left:50%;top:50%;width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;background:var(--line);transition:background .2s,transform .2s}
.car-dot[aria-current=true]::before{background:var(--accent);transform:scale(1.3)}
.car-dot:focus-visible,.car-btn:focus-visible,.tourbtn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.car-m{display:none}
@media (max-width:720px){.car-d{display:none}.car-m{display:block}
.car-m .car-track{gap:12px;padding:4px 17%;scroll-padding:0 17%}
.car-m .car-s{flex:0 0 100%;align-items:center;padding:4px 0}
.car-m .car-s>figure{width:100%}
.car-m .car-s img{aspect-ratio:450/974;border-radius:18px;max-height:70vh;width:auto;max-width:100%;margin:0 auto}
.car-m .car-wide{flex-basis:calc(100% + 34vw - 24px)}
.car-m .car-wide:first-child{margin-left:calc(12px - 17vw)}
.car-m .car-wide img{aspect-ratio:8/5;border-radius:12px;width:100%;max-height:none}
.car-m figcaption{font-size:.85rem}
.car-m .car-ctl{gap:6px;flex-wrap:nowrap}.car-m .car-dots{gap:0;flex-wrap:nowrap}.car-m .car-dot{width:22px}.car-m .car-btn{width:36px;height:36px;flex:none}}
@media (prefers-reduced-motion:reduce){.car-track{scroll-behavior:auto}.mtap.on{animation:none}}