/* =========================================================
   AJ — Restaurant & retail systems section
   ========================================================= */
.rs{position:relative;isolation:isolate;overflow:hidden;background:var(--ink);padding:clamp(100px,12vw,180px) 0 clamp(90px,11vw,170px)}
.rs__bg{position:absolute;inset:0 0 auto;height:min(1100px,120vh);z-index:-1;overflow:hidden}
.rs__bg img{width:100%;height:100%;object-fit:cover;opacity:.34;filter:saturate(1.15) contrast(1.05)}
.rs__bg::after{content:"";position:absolute;inset:0;background:
  radial-gradient(60% 50% at 75% 30%,rgba(255,107,44,.22),transparent 70%),
  linear-gradient(180deg,rgba(13,13,15,.55) 0%,rgba(13,13,15,.6) 45%,var(--ink) 100%)}
.rs__head .h2{max-width:14ch}
.rs__lede{max-width:52ch}

/* ---------- stage ---------- */
.rs__stage{padding:0 var(--gut)}
.rs__hint{display:flex;align-items:center;gap:10px;color:var(--dim);margin-bottom:18px}
.rs__hint-dot{width:7px;height:7px;border-radius:50%;background:#4be38b;animation:pulse 2.4s infinite}
.rs__note{color:rgba(239,234,225,.4);margin-top:16px}
.rs__rig{display:grid;grid-template-columns:minmax(0,1fr) clamp(240px,22vw,300px);gap:clamp(12px,1.4vw,20px);perspective:1400px}

/* POS tablet */
.pos{position:relative;border-radius:26px;padding:12px;background:linear-gradient(160deg,#2a2a30,#121215);box-shadow:0 40px 90px -30px rgba(0,0,0,.8),0 0 0 1px rgba(255,255,255,.06),inset 0 1px 0 rgba(255,255,255,.08);transform-style:preserve-3d;will-change:transform}
.pos::before{content:"";position:absolute;top:50%;left:5px;width:3px;height:40px;margin-top:-20px;border-radius:3px;background:rgba(255,255,255,.12)}
.pos__bar{display:flex;align-items:center;gap:14px;padding:10px 16px;border-radius:16px 16px 0 0;background:#18181c;color:var(--dim);font-size:10.5px}
.pos__brand{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pos__brand b{color:var(--bone);font-weight:500}
.pos__net{display:inline-flex;align-items:center;gap:7px;padding:5px 10px;border-radius:999px;background:rgba(75,227,139,.12);color:#7cf0ad;font:inherit;letter-spacing:inherit;text-transform:inherit;transition:background .4s,color .4s}
.pos__net i{width:6px;height:6px;border-radius:50%;background:currentColor}
.pos__net.is-off{background:rgba(255,195,90,.14);color:#ffc35a}
.pos__net.is-sync{background:rgba(61,214,198,.16);color:var(--teal)}
.pos__clock{color:var(--bone)}
.pos__body{display:grid;grid-template-columns:minmax(150px,.8fr) minmax(0,1.5fr) minmax(200px,1fr);min-height:440px;border-radius:0 0 16px 16px;background:#0f0f12;overflow:hidden}
.pos__lbl{color:var(--dim);font-size:10px;margin-bottom:12px}
.pos__lbl b{color:var(--ember);font-weight:500}

.pos__floor{padding:16px;border-right:1px solid var(--hair);background:
  radial-gradient(circle at 1px 1px,rgba(239,234,225,.07) 1px,transparent 0) 0 0/14px 14px}
.pos__tables{display:grid;grid-template-columns:1fr 1fr;grid-auto-rows:66px;gap:10px}
.tbl{position:relative;display:grid;place-items:center;align-content:center;gap:2px;border-radius:14px;background:#1b1b20;box-shadow:inset 0 0 0 1px var(--hair);transition:background .35s,box-shadow .35s,transform .35s var(--ease)}
.tbl--s{border-radius:50%;width:66px;justify-self:center}
.tbl--l{grid-column:span 2}
.tbl b{font-size:18px;font-weight:500;line-height:1}
.tbl small{font-family:var(--f-mono);font-size:9.5px;color:var(--dim);letter-spacing:.03em}
.tbl:hover{transform:translateY(-2px)}
.tbl.is-open{box-shadow:inset 0 0 0 1.5px var(--ember)}
.tbl.is-sent{background:rgba(255,107,44,.14);box-shadow:inset 0 0 0 1.5px rgba(255,107,44,.6)}
.tbl.is-sent::after{content:"";position:absolute;top:8px;right:8px;width:6px;height:6px;border-radius:50%;background:var(--ember);animation:pulse 2s infinite}
.tbl.is-sel{background:var(--ember);color:var(--ink);box-shadow:0 10px 30px -10px rgba(255,107,44,.8)}
.tbl.is-sel small{color:rgba(13,13,15,.7)}

.pos__menu{display:flex;flex-direction:column;padding:16px;gap:14px;min-width:0}
.pos__cats{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none}
.pos__cats::-webkit-scrollbar{display:none}
.cat{padding:9px 14px;border-radius:999px;font-size:13px;white-space:nowrap;color:var(--dim);box-shadow:inset 0 0 0 1px var(--hair);transition:.3s}
.cat.is-on{background:var(--bone);color:var(--ink);box-shadow:none}
.pos__items{display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:10px;align-content:start}
.itm{--c:var(--teal);position:relative;display:flex;flex-direction:column;justify-content:space-between;gap:16px;min-height:92px;padding:13px 14px;border-radius:14px;text-align:left;background:linear-gradient(160deg,#1e1e24,#16161a);box-shadow:inset 0 0 0 1px var(--hair);overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s}
.itm::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c)}
.itm::after{content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;border-radius:50%;background:var(--c);opacity:.12;filter:blur(18px)}
.itm span{font-size:14px;line-height:1.25}
.itm b{font-family:var(--f-mono);font-size:12px;font-weight:500;color:var(--dim)}
.itm:hover{transform:translateY(-3px);box-shadow:inset 0 0 0 1px rgba(239,234,225,.22)}
.itm--m{--c:var(--ember)} .itm--d{--c:#ffc35a} .itm--p{--c:#ff7eb6}
.is-tap{animation:tap .55s var(--ease)}
@keyframes tap{0%{transform:scale(1)}35%{transform:scale(.93);box-shadow:inset 0 0 0 2px var(--ember)}100%{transform:scale(1)}}

.pos__ticket{display:flex;flex-direction:column;padding:16px;background:#141418;border-left:1px solid var(--hair);min-width:0}
.pos__lines{flex:1;display:grid;align-content:start;gap:4px;overflow:auto;max-height:260px}
.pos__lines li{display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:baseline;padding:7px 8px;border-radius:8px;font-size:13px}
.pos__lines .q{font-family:var(--f-mono);color:var(--ember);font-size:11.5px}
.pos__lines b{font-family:var(--f-mono);font-weight:500;font-size:11.5px;color:var(--dim)}
.pos__lines li.is-sent .nm{color:var(--dim)}
.pos__lines li.is-sent .nm::after{content:" ✓";color:#4be38b}
.pos__empty{flex:1;color:rgba(239,234,225,.38);font-size:13px}
.pos__empty[hidden]{display:none}
.pos__sum{display:flex;justify-content:space-between;align-items:baseline;padding:14px 0;margin-top:10px;border-top:1px dashed var(--faint)}
.pos__sum span{color:var(--dim);font-size:13px}
.pos__total{font-size:24px;font-weight:500;letter-spacing:-.03em}
.pos__acts{display:grid;gap:8px}
.pos__acts button{height:46px;border-radius:12px;font-weight:500;font-size:14px;transition:background .3s,color .3s,opacity .3s,transform .3s var(--ease)}
.pos__send{background:var(--ember);color:var(--ink)}
.pos__pay{background:rgba(239,234,225,.08);box-shadow:inset 0 0 0 1px var(--faint)}
.pos__acts button:disabled{opacity:.32;cursor:not-allowed}
.pos__acts button.is-done{transform:scale(.96)}
.pos__pay.is-done{background:#4be38b;color:var(--ink)}

/* Kitchen display */
.kds{display:flex;flex-direction:column;border-radius:22px;padding:16px;background:linear-gradient(180deg,#17171b,#101013);box-shadow:0 30px 80px -30px rgba(0,0,0,.8),0 0 0 1px rgba(255,255,255,.06);min-height:300px;max-height:540px;overflow:hidden}
.kds__head{display:flex;justify-content:space-between;align-items:center;color:var(--dim);margin-bottom:14px}
.kds__n{display:grid;place-items:center;min-width:24px;height:24px;padding:0 6px;border-radius:999px;background:var(--ember);color:var(--ink);font-weight:500}
.kds__list{display:grid;gap:10px;align-content:start;overflow:hidden}
.kds__idle{margin:auto;color:rgba(239,234,225,.35);text-align:center}
.kds__idle[hidden]{display:none}
.tk{--c:var(--teal);padding:12px 14px;border-radius:14px;background:#1c1c21;box-shadow:inset 3px 0 0 var(--c),inset 0 0 0 1px var(--hair);overflow:hidden;transition:box-shadow .5s}
.tk.is-warm{--c:#ffc35a} .tk.is-late{--c:#ff5c5c} .tk.is-ready{--c:#4be38b;background:rgba(75,227,139,.08)}
.tk__h{display:flex;justify-content:space-between;color:var(--bone);margin-bottom:8px;font-size:11px}
.tk__time{color:var(--c)}
.tk ul{display:grid;gap:4px;font-size:13.5px}
.tk li span{font-family:var(--f-mono);color:var(--c);margin-right:6px;font-size:12px}
.tk__st{margin-top:8px;color:var(--c);font-size:10px}

/* Live stats */
.rs__stats{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(10px,1.2vw,16px)}
.stat{padding:18px 20px;border-radius:18px;background:rgba(239,234,225,.04);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:inset 0 0 0 1px var(--hair)}
.stat small{display:block;color:var(--dim);font-size:10.5px;margin-bottom:8px}
.stat__v{display:block;font-size:clamp(1.5rem,2.4vw,2.2rem);font-weight:500;letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.stat__v--txt{font-family:var(--f-serif);font-style:italic;font-weight:400;letter-spacing:-.01em}

/* ---------- modules ---------- */
.rs__mods{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin:clamp(70px,9vw,130px) var(--gut) 0;border-radius:24px;overflow:hidden;background:var(--hair);box-shadow:0 0 0 1px var(--hair)}
.mod{position:relative;padding:clamp(22px,2.4vw,34px);background:var(--ink);min-height:230px;display:flex;flex-direction:column;gap:12px;overflow:hidden;transition:background .5s}
.mod::before{content:"";position:absolute;width:220px;height:220px;right:-90px;top:-90px;border-radius:50%;background:radial-gradient(circle,rgba(255,107,44,.35),transparent 65%);opacity:0;transition:opacity .6s}
.mod:hover{background:#141417}
.mod:hover::before{opacity:1}
.mod svg{width:30px;height:30px;fill:none;stroke:var(--ember);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .6s var(--ease)}
.mod:hover svg{transform:translateY(-4px) rotate(-6deg)}
.mod h3{font-size:clamp(1.1rem,1.4vw,1.35rem);font-weight:500;letter-spacing:-.025em;line-height:1.15;margin-top:36px}
.mod p{color:var(--dim);font-size:14px;line-height:1.5}

/* ---------- who it's for ---------- */
.rs__for{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(10px,1.2vw,16px);margin:clamp(14px,1.4vw,20px) var(--gut) 0}
.fcard{position:relative;aspect-ratio:3/4;border-radius:18px;overflow:hidden;background:var(--ink-2)}
.fcard img{width:100%;height:100%;object-fit:cover;transition:transform 1.4s var(--ease)}
.fcard::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(13,13,15,.9))}
.fcard:hover img{transform:scale(1.07)}
.fcard figcaption{position:absolute;left:18px;right:18px;bottom:18px;z-index:1;display:grid;gap:4px}
.fcard b{font-size:clamp(1.05rem,1.4vw,1.35rem);font-weight:500;letter-spacing:-.02em;line-height:1.15}
.fcard span{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim)}

/* ---------- why + CTA ---------- */
.rs__why{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:clamp(30px,5vw,80px);align-items:end;margin:clamp(70px,9vw,130px) var(--gut) 0}
.why{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,3vw,44px) clamp(20px,3vw,48px);padding:0;margin:0;list-style:none}
.why li{display:grid;gap:8px;padding-top:18px;border-top:1px solid var(--faint)}
.why span{color:var(--ember)}
.why b{font-size:clamp(1.2rem,1.7vw,1.6rem);font-weight:500;letter-spacing:-.03em}
.why p{color:var(--dim);font-size:14.5px;max-width:36ch}
.rs__cta{display:grid;gap:16px;justify-items:start}
.rs__also{color:var(--dim);max-width:34ch;line-height:1.6}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .pos__body{grid-template-columns:minmax(130px,.7fr) minmax(0,1.4fr) minmax(190px,1fr)}
  .rs__mods{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:980px){
  .rs__rig{grid-template-columns:minmax(0,1fr)}
  .kds{max-height:none;min-height:0}
  .kds__list{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
  .rs__stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rs__for{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rs__why{grid-template-columns:1fr;align-items:start}
}
@media (max-width:720px){
  .pos{padding:8px;border-radius:20px}
  .pos::before{display:none}
  .pos__bar{padding:9px 12px;gap:10px}
  .pos__clock{display:none}
  .pos__body{grid-template-columns:minmax(0,1fr);min-height:0}
  .pos__floor,.pos__menu,.pos__ticket{min-width:0}
  .pos__floor{border-right:0;border-bottom:1px solid var(--hair);padding:12px}
  .pos__tables{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
  .pos__tables::-webkit-scrollbar{display:none}
  .tbl,.tbl--s,.tbl--l{flex:0 0 64px;width:auto;height:64px;grid-column:auto}
  .tbl--s{width:64px}
  .tbl--l{flex-basis:96px}
  .pos__menu{padding:12px}
  .pos__items{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
  .itm{min-height:72px;padding:9px 10px;gap:8px;border-radius:12px}
  .itm span{font-size:12.5px}
  .itm b{font-size:11px}
  .pos__ticket{border-left:0;border-top:1px solid var(--hair);padding:12px}
  .pos__lines{max-height:160px}
  .pos__acts{grid-template-columns:1fr 1fr}
  .rs__mods{grid-template-columns:1fr}
  .mod{min-height:0}
  .why{grid-template-columns:1fr}
  .rs__cta .btn{white-space:normal;height:auto;min-height:52px;padding:14px 22px}
}
@media (max-width:460px){
  .rs__stats{grid-template-columns:1fr 1fr}
  .stat{padding:14px}
  .rs__for{grid-template-columns:1fr 1fr}
  .fcard{aspect-ratio:4/5}
  .fcard figcaption{left:12px;right:12px;bottom:12px}
}
@media (prefers-reduced-motion:reduce){
  .is-tap{animation:none}
  .fcard img,.mod svg{transition:none}
}