/* ==========================================================================
   Singoo Cloud — marketing site design system
   Playful-premium craft · warm cream base · bespoke 3D objects · ink buttons
   Palette matches the 3D object set: coral / marigold / teal / cobalt / lilac
   ========================================================================== */
:root{
  /* ink & warm surfaces */
  --ink:#1A1512; --ink-2:#3A322C; --muted:#6E655C; --faint:#9A9086;
  --bg:#FAF7F1; --bg-soft:#F3EDE1; --bg-soft2:#EEE6D6; --bg-ink:#181310;
  --line:#EAE1D2; --line-2:#DDD3C0;
  /* pop palette (matches the bespoke 3D object set) */
  --coral:#FF6B4A; --coral-2:#F1502C; --marigold:#FFB020; --marigold-2:#E0900A;
  --teal:#12B5A5; --teal-2:#0E9C8E; --cobalt:#2F5BFF; --cobalt-2:#2246E0; --lilac:#8B7CF0; --lilac-2:#6F5CE6;
  --green:#12B76A; --green-2:#0E9F5C;
  /* soft section tints */
  --tint-peach:#FBEBE3; --tint-mint:#E6F5F0; --tint-sky:#EAF0FF; --tint-lilac:#F0ECFC; --tint-sun:#FCF1D9; --tint-cream:#F3EDE1;
  /* legacy aliases so existing markup keeps working */
  --blue:#2F5BFF; --blue-2:#2246E0; --violet:#8B7CF0; --violet-2:#6F5CE6; --cyan:#12B5A5; --amber:#FFB020; --pink:#FF6B4A;
  --grad:linear-gradient(120deg,var(--coral),var(--marigold) 60%,var(--teal));
  --grad-bright:linear-gradient(110deg,var(--coral),var(--marigold) 55%,var(--teal));
  --glow:radial-gradient(60% 55% at 50% 0%,rgba(255,176,32,.16),transparent 72%);
  /* type */
  --display:"Bricolage Grotesque","Hanken Grotesk",-apple-system,system-ui,sans-serif;
  --sans:"Hanken Grotesk","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"SF Mono",ui-monospace,Menlo,monospace;
  /* radii & shadow — rounder, warmer, softer */
  --r-xl:34px; --r-lg:24px; --r:16px; --r-sm:11px; --pill:999px;
  --sh-sm:0 1px 2px rgba(60,42,20,.05);
  --sh:0 10px 26px -12px rgba(66,48,26,.16), 0 30px 56px -34px rgba(66,48,26,.18);
  --sh-lg:0 40px 90px -34px rgba(56,40,22,.32);
  --sh-pop:0 16px 34px -14px rgba(255,107,74,.42);
  --sh-ink:0 14px 30px -12px rgba(26,21,18,.4);
  --maxw:1360px; --maxw-wide:1480px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth; -webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--ink-2);
  font-family:var(--sans); font-size:17.5px; line-height:1.65;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility; overflow-x:hidden;
}
img{max-width:100%; display:block}
a{color:inherit; text-decoration:none}
::selection{background:rgba(255,107,74,.22)}
.i{fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; width:20px; height:20px; display:inline-block; vertical-align:middle; flex-shrink:0}
.i-fill{fill:currentColor; stroke:none; width:20px; height:20px; display:inline-block; vertical-align:middle; flex-shrink:0}
svg[hidden]{display:none}
h1,h2,h3,h4{font-family:var(--display); color:var(--ink); font-weight:800; letter-spacing:-.025em; line-height:1.05; margin:0}
p{margin:0}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 40px}
.wrap-wide{max-width:var(--maxw-wide); margin:0 auto; padding:0 40px}
.eyebrow{display:inline-flex; align-items:center; gap:9px; font-weight:800; font-size:13px; letter-spacing:.14em; text-transform:uppercase; color:var(--coral-2)}
.eyebrow::before{content:""; width:9px; height:9px; border-radius:50%; background:var(--coral); box-shadow:0 0 0 4px rgba(255,107,74,.16)}
.grad-txt{color:var(--coral); position:relative; white-space:nowrap}
.muted{color:var(--muted)}
.center{text-align:center}
.lead{font-size:19.5px; color:var(--muted); line-height:1.58}

/* ---------- buttons ---------- */
.btn{display:inline-flex; align-items:center; justify-content:center; gap:9px; font-family:var(--sans); font-weight:800; font-size:15.5px; padding:14px 24px; border-radius:var(--pill); border:1.5px solid transparent; cursor:pointer; transition:transform .18s cubic-bezier(.2,.7,.2,1), box-shadow .2s, background .2s, color .2s, border-color .2s; white-space:nowrap}
.btn svg{width:18px; height:18px}
.btn-primary{background:var(--ink); color:#fff; box-shadow:var(--sh-ink)}
.btn-primary:hover{transform:translateY(-2px); box-shadow:0 22px 44px -16px rgba(26,21,18,.55)}
.btn-ghost{background:#fff; color:var(--ink); border-color:var(--line-2); box-shadow:var(--sh-sm)}
.btn-ghost:hover{transform:translateY(-2px); border-color:var(--ink); }
.btn-wa{background:#25D366; color:#062e13}
.btn-wa:hover{transform:translateY(-2px); box-shadow:0 20px 44px -18px rgba(37,211,102,.6)}
.btn-lg{padding:17px 30px; font-size:16.5px}
.btn-sm{padding:9px 17px; font-size:14px}
.btn-white{background:#fff; color:var(--ink)}
.btn-white:hover{transform:translateY(-2px); box-shadow:var(--sh-lg)}
.btn-coral{background:var(--coral); color:#fff; box-shadow:var(--sh-pop)}
.btn-coral:hover{transform:translateY(-2px); box-shadow:0 24px 50px -16px rgba(255,107,74,.6)}

/* ---------- header ---------- */
.hdr{position:sticky; top:0; z-index:100; background:rgba(250,247,241,.82); backdrop-filter:saturate(1.4) blur(14px); border-bottom:1px solid var(--line)}
.hdr-in{display:flex; align-items:center; gap:22px; height:72px}
.brand{display:flex; align-items:center; gap:12px; font-family:var(--display); font-weight:800; font-size:19px; color:var(--ink); letter-spacing:-.02em}
.brand img{height:26px; width:auto; display:block}
.brand .b-en{display:inline-flex; align-items:center; gap:12px; color:var(--muted); font-weight:700; font-size:13.5px; letter-spacing:.01em; line-height:1}
.brand .b-en::before{content:""; width:1.5px; height:19px; background:var(--line-2); border-radius:2px}
.nav{display:flex; align-items:center; gap:2px; margin-left:10px}
.nav a{padding:9px 15px; border-radius:var(--pill); font-weight:700; font-size:15px; color:var(--ink-2); transition:background .18s,color .18s}
.nav a:hover,.nav a.active{background:#fff; color:var(--ink); box-shadow:var(--sh-sm)}
.hdr-cta{margin-left:auto; display:flex; align-items:center; gap:12px}
.lang{display:inline-flex; align-items:center; border:1.5px solid var(--line-2); border-radius:var(--pill); overflow:hidden; background:#fff}
.lang a,.lang button{border:0; background:none; font-family:var(--sans); font-weight:800; font-size:13px; padding:7px 13px; cursor:pointer; color:var(--muted); text-decoration:none; display:inline-flex; align-items:center}
.lang a.on,.lang button.on{background:var(--ink); color:#fff}
.burger{display:none; margin-left:auto; width:46px;height:46px;border:1.5px solid var(--line-2);border-radius:14px;background:#fff;cursor:pointer; align-items:center;justify-content:center}
.burger svg{width:22px;height:22px}
.nav-cta{display:none!important}
@media(max-width:900px){.nav.open .nav-cta{display:inline-flex!important}}

/* ---------- hero ---------- */
.hero{position:relative; padding:70px 0 46px; overflow:hidden}
.hero::before{content:""; position:absolute; inset:-8% -10% auto -10%; height:620px; background:var(--glow); z-index:0}
.hero-blob{position:absolute; border-radius:50%; filter:blur(46px); opacity:.5; z-index:0; pointer-events:none}
.hero-blob.a{width:340px;height:340px; background:rgba(255,107,74,.32); top:-60px; right:6%}
.hero-blob.b{width:300px;height:300px; background:rgba(47,91,255,.20); bottom:-40px; left:-40px}
.hero-blob.c{width:220px;height:220px; background:rgba(18,181,165,.24); top:120px; right:38%}
.hero-in{position:relative; z-index:1; display:grid; grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr); gap:48px; align-items:center}
.hero h1{font-size:clamp(40px,5.4vw,68px); font-weight:800; letter-spacing:-.035em; margin:20px 0 0}
.hero .lead{margin:24px 0 0; max-width:552px; font-size:20px}
.hero-cta{display:flex; gap:14px; flex-wrap:wrap; margin:32px 0 0}
.hero-note{display:flex; align-items:center; gap:18px; margin:24px 0 0; color:var(--faint); font-size:13.5px; flex-wrap:wrap}
.hero-note .dot{display:inline-flex;align-items:center;gap:7px; font-weight:600; color:var(--muted)}
.hero-note .dot::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--teal)}
.hero-note .dot:nth-child(2)::before{background:var(--coral)}
.hero-note .dot:nth-child(3)::before{background:var(--cobalt)}

/* hero visual: chat demo + floating 3D objects */
.hero-stage{position:relative; padding:8px 8px 10px}
.hero-stage .chat{margin:0 0 0 auto}
.float-obj{position:absolute; z-index:3; width:118px; filter:drop-shadow(0 18px 24px rgba(60,45,25,.24)); animation:bob 5s ease-in-out infinite}
.float-obj.o1{top:-26px; left:-18px; width:132px}
.float-obj.o2{bottom:-18px; left:-30px; width:118px; animation-delay:.8s}
.float-obj.o3{top:44%; right:-30px; width:104px; animation-delay:1.6s}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* chat mockup */
.chat{position:relative; width:100%; max-width:392px; border-radius:28px; background:#fff; box-shadow:var(--sh-lg); border:1px solid var(--line); overflow:hidden; transform:rotate(.5deg)}
.chat-glow{display:none}
.chat-top{display:flex; align-items:center; gap:11px; padding:14px 16px; background:linear-gradient(120deg,#0E7A6E,#12B5A5); color:#fff}
.chat-top .av{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.22);display:grid;place-items:center;font-weight:800; font-family:var(--display)}
.chat-top .nm{font-weight:800; font-size:14.5px; line-height:1.2}
.chat-top .st{font-size:11.5px; opacity:.9; display:flex;align-items:center;gap:5px}
.chat-top .st::before{content:"";width:6px;height:6px;border-radius:50%;background:#7CF29B}
.chat-top .badge{margin-left:auto; font-size:10.5px; font-weight:800; background:rgba(255,255,255,.18); padding:4px 9px; border-radius:var(--pill); flex-shrink:0}
.chat-top > div:nth-child(2){flex:1; min-width:0}
.chat-top .st{white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
.chat-body{padding:16px; display:flex; flex-direction:column; gap:9px; background:#ECE5DB; min-height:334px}
.msg{max-width:82%; padding:9px 13px; border-radius:14px; font-size:14px; line-height:1.5; color:#0B141A; box-shadow:0 1px 1px rgba(0,0,0,.06); position:relative; opacity:0; transform:translateY(8px); overflow-wrap:anywhere}
.msg.show{opacity:1; transform:none; transition:opacity .4s, transform .4s}
.msg.in{background:#fff; align-self:flex-start; border-top-left-radius:5px}
.msg.out{background:#D9FDD3; align-self:flex-end; border-top-right-radius:5px}
.msg .t{display:block; font-size:10px; color:#667781; text-align:right; margin-top:2px}
.msg .lang-tag{display:inline-block; font-size:10px; font-weight:800; color:var(--cobalt); background:rgba(47,91,255,.1); padding:1px 6px; border-radius:6px; margin-bottom:4px}
.msg.sys{align-self:center; background:#FFF0CF; color:#7A5B00; font-size:12px; font-weight:700; max-width:92%; text-align:center; border-radius:10px; box-shadow:none}
.typing{align-self:flex-start; background:#fff; padding:11px 14px; border-radius:14px; border-top-left-radius:5px; display:inline-flex; gap:4px; box-shadow:0 1px 1px rgba(0,0,0,.06)}
.typing span{width:7px;height:7px;border-radius:50%;background:#9aa3ac; animation:blink 1.2s infinite}
.typing span:nth-child(2){animation-delay:.2s} .typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.3} 30%{opacity:1}}
.chat-in{display:flex; align-items:center; gap:9px; padding:10px 12px; background:#F3EDE3}
.chat-in .box{flex:1; height:34px; border-radius:var(--pill); background:#fff; border:1px solid #e6ded1}
.chat-in .snd{width:34px;height:34px;border-radius:50%;background:#12B5A5;display:grid;place-items:center;color:#fff}
.chat-in .snd svg{width:16px;height:16px}

/* ---------- sections ---------- */
.sec{padding:88px 0; position:relative}
.sec.soft{background:var(--bg-soft)}
.sec.peach{background:var(--tint-peach)} .sec.mint{background:var(--tint-mint)} .sec.sky{background:var(--tint-sky)} .sec.lilac{background:var(--tint-lilac)} .sec.sun{background:var(--tint-sun)}
.sec.ink{background:var(--bg-ink); color:#D9CEC0}
.sec.ink h2,.sec.ink h3{color:#fff}
.sec.ink .eyebrow{color:var(--marigold)}
.sec.ink .eyebrow::before{background:var(--marigold); box-shadow:0 0 0 4px rgba(255,176,32,.18)}
.sec-head{max-width:760px; margin:0 auto 52px}
.sec-head.left{margin-left:0; margin-right:0}
.sec-head h2{font-size:clamp(32px,4vw,50px); font-weight:800; margin:16px 0 0}
.sec-head .lead{margin-top:18px}

/* logos / trust bar */
.trust{padding:28px 0; border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:rgba(255,255,255,.5)}
.trust-in{display:flex; align-items:center; gap:32px; flex-wrap:wrap; justify-content:center}
.trust .lbl{font-size:13px; font-weight:800; color:var(--faint); letter-spacing:.06em; text-transform:uppercase}
.trust .item{display:flex; align-items:center; gap:9px; font-weight:800; color:var(--ink-2); font-size:15px}
.trust .item svg{width:20px;height:20px;color:var(--coral)}
.trust .item:nth-child(3) svg{color:var(--teal)} .trust .item:nth-child(4) svg{color:var(--cobalt)} .trust .item:nth-child(5) svg{color:var(--lilac)}

/* stat row */
.stats{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:20px}
@media(max-width:820px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat{background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); padding:26px; box-shadow:var(--sh-sm); position:relative; overflow:hidden}
.stat::before{content:""; position:absolute; left:0; top:0; bottom:0; width:5px; background:var(--coral)}
.stats .stat:nth-child(2)::before{background:var(--marigold)} .stats .stat:nth-child(3)::before{background:var(--teal)} .stats .stat:nth-child(4)::before{background:var(--cobalt)}
.stat .v{font-family:var(--display); font-weight:800; font-size:42px; letter-spacing:-.03em; color:var(--ink); line-height:1}
.stat .l{font-size:14px; color:var(--muted); margin-top:8px; line-height:1.45}
.stat .tag{font-size:11px; color:var(--faint); margin-top:8px; font-style:italic}

/* cards / grid */
.grid{display:grid; gap:22px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))} .g3{grid-template-columns:repeat(3,minmax(0,1fr))} .g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:960px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{position:relative; background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); padding:28px; box-shadow:var(--sh-sm); transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-5px); box-shadow:var(--sh); border-color:var(--line-2)}
.card .ico{width:54px;height:54px;border-radius:16px;display:grid;place-items:center; margin-bottom:18px; background:var(--tint-sky); color:var(--cobalt)}
.card .ico svg{width:26px;height:26px; stroke-width:2}
.card h3{font-size:21px; margin-bottom:9px; letter-spacing:-.02em}
.card p{color:var(--muted); font-size:15.5px}
.card.soft{background:var(--bg-soft); box-shadow:none; border-color:transparent}
a.card{color:inherit; text-decoration:none}
.ico.c-blue{background:var(--tint-sky); color:var(--cobalt)} .ico.c-cyan{background:var(--tint-mint); color:var(--teal)} .ico.c-green{background:#E4F6EC; color:var(--green-2)} .ico.c-amber{background:var(--tint-sun); color:var(--marigold-2)} .ico.c-violet{background:var(--tint-lilac); color:var(--lilac-2)} .ico.c-pink{background:var(--tint-peach); color:var(--coral-2)}

/* object card — bespoke 3D object in a soft well above the copy (bento-ready) */
.ocard{position:relative; background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sh-sm); transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s}
.ocard:hover{transform:translateY(-5px); box-shadow:var(--sh)}
.ocard .well{display:grid; place-items:center; aspect-ratio:16/10; overflow:hidden; background:var(--tint-sky)}
.ocard .well img{max-width:78%; max-height:84%; width:auto; height:auto; filter:drop-shadow(0 13px 18px rgba(60,45,25,.2)); transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.ocard:hover .well img{transform:translateY(-6px) scale(1.04)}
.ocard .well.ph img{width:100%; height:100%; max-width:none; max-height:none; object-fit:cover; filter:none}
.ocard:hover .well.ph img{transform:scale(1.05)}
.ocard .body{padding:22px 24px 26px}
.ocard .k{display:block; font-size:12px; font-weight:800; letter-spacing:.08em; text-transform:uppercase; color:var(--coral-2); margin-bottom:6px}
.ocard h3{font-size:20px; margin-bottom:8px; letter-spacing:-.02em}
.ocard p{color:var(--muted); font-size:15px}
/* colour rotation across a grid of object cards */
.grid > .ocard:nth-child(6n+1) .well{background:var(--tint-peach)} .grid > .ocard:nth-child(6n+2) .well{background:var(--tint-sun)}
.grid > .ocard:nth-child(6n+3) .well{background:var(--tint-mint)} .grid > .ocard:nth-child(6n+4) .well{background:var(--tint-sky)}
.grid > .ocard:nth-child(6n+5) .well{background:var(--tint-lilac)} .grid > .ocard:nth-child(6n+6) .well{background:var(--tint-peach)}

/* bento grid (varied tile sizes) */
.bento{display:grid; grid-template-columns:repeat(6,minmax(0,1fr)); gap:20px}
.bento > *{grid-column:span 2}
.bento .b3{grid-column:span 3} .bento .b4{grid-column:span 4} .bento .b6{grid-column:span 6}
@media(max-width:960px){.bento{grid-template-columns:repeat(2,1fr)} .bento > *,.bento .b3,.bento .b4,.bento .b6{grid-column:span 1}}
@media(max-width:560px){.bento{grid-template-columns:1fr}}

/* feature spotlight (big object + copy, alternating) */
.spot{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:52px; align-items:center}
.spot.rev .spot-obj{order:2}
@media(max-width:820px){.spot{grid-template-columns:1fr; gap:28px} .spot.rev .spot-obj{order:0}}
.spot-obj{position:relative; border-radius:var(--r-xl); background:var(--tint-mint); display:grid; place-items:center; padding:34px; aspect-ratio:5/4; overflow:hidden}
.spot-obj.tint-sky{background:var(--tint-sky)} .spot-obj.tint-peach{background:var(--tint-peach)} .spot-obj.tint-lilac{background:var(--tint-lilac)} .spot-obj.tint-sun{background:var(--tint-sun)}
.spot-obj img{max-width:72%; max-height:78%; width:auto; height:auto; filter:drop-shadow(0 24px 32px rgba(60,45,25,.26))}

/* step flow (delivery) */
.steps{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:20px; counter-reset:s}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}
.step{position:relative; background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); padding:28px 24px; box-shadow:var(--sh-sm)}
.step::before{counter-increment:s; content:counter(s,decimal-leading-zero); font-family:var(--display); font-weight:800; font-size:15px; color:#fff; background:var(--ink); width:40px;height:40px; border-radius:12px; display:grid; place-items:center; margin-bottom:16px}
.steps .step:nth-child(1)::before{background:var(--coral)} .steps .step:nth-child(2)::before{background:var(--marigold)} .steps .step:nth-child(3)::before{background:var(--teal)} .steps .step:nth-child(4)::before{background:var(--cobalt)}
.step h3{font-size:18.5px; margin-bottom:8px}
.step p{color:var(--muted); font-size:14.5px}

/* reasoning loop (product) */
.rloop{display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:14px}
@media(max-width:860px){.rloop{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.rloop{grid-template-columns:1fr}}
.rnode{background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:22px 18px; box-shadow:var(--sh-sm)}
.rnode .n{width:34px; height:34px; border-radius:10px; display:grid; place-items:center; font-family:var(--display); font-weight:800; font-size:14px; color:#fff; margin-bottom:13px; background:var(--ink)}
.rloop .rnode:nth-child(1) .n{background:var(--coral)} .rloop .rnode:nth-child(2) .n{background:var(--marigold)} .rloop .rnode:nth-child(3) .n{background:var(--teal)} .rloop .rnode:nth-child(4) .n{background:var(--cobalt)} .rloop .rnode:nth-child(5) .n{background:var(--lilac)}
.rnode h4{font-size:16px; margin-bottom:6px; font-family:var(--display); font-weight:800; color:var(--ink)}
.rnode p{font-size:13.5px; color:var(--muted); line-height:1.5}
.branch{display:flex; gap:16px; flex-wrap:wrap; margin-top:16px}
.branch .b{flex:1; min-width:250px; display:flex; gap:12px; align-items:flex-start; background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:18px 20px; box-shadow:var(--sh-sm)}
.branch .b svg{width:22px; height:22px; flex-shrink:0; margin-top:1px}
.branch .b.ans svg{color:var(--teal)} .branch .b.hand svg{color:var(--cobalt)}
.branch .b b{color:var(--ink); font-weight:800}
.branch .b p{color:var(--muted); font-size:14px; margin-top:3px}
.loopback{display:flex; align-items:center; justify-content:center; gap:10px; margin-top:22px; font-weight:800; color:var(--coral-2); font-size:15px}
.loopback svg{width:19px; height:19px}

/* ---------- interactive agent simulator ---------- */
.agent-sim{background:var(--bg-soft); border:1px solid var(--line); border-radius:var(--r-xl); padding:22px; box-shadow:var(--sh-sm)}
.sim-tabs{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:18px}
.sim-tab{font-family:var(--sans); font-weight:800; font-size:14px; padding:9px 16px; border-radius:var(--pill); border:1.5px solid var(--line-2); background:#fff; color:var(--muted); cursor:pointer; transition:background .18s,color .18s,border-color .18s}
.sim-tab:hover{color:var(--ink); border-color:var(--ink)}
.sim-tab.active{background:var(--ink); color:#fff; border-color:var(--ink)}
.sim-grid{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:20px; align-items:start}
@media(max-width:900px){.sim-grid{grid-template-columns:1fr}}
/* left: chat */
.sim-chat{background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sh-sm); display:flex; flex-direction:column}
.sim-body{padding:16px; display:flex; flex-direction:column; gap:9px; background:#ECE5DB; min-height:262px; max-height:352px; overflow-y:auto}
.sim-foot{padding:14px 16px; background:#F3EDE3; border-top:1px solid #e6ded1}
.sim-ask{font-size:11.5px; font-weight:800; letter-spacing:.05em; text-transform:uppercase; color:var(--faint); margin-bottom:10px}
.sim-chips{display:flex; flex-wrap:wrap; gap:8px}
.sim-chip{font-family:var(--sans); font-weight:700; font-size:13.5px; padding:8px 14px; border-radius:var(--pill); border:1.5px solid var(--line-2); background:#fff; color:var(--ink-2); cursor:pointer; line-height:1.3; text-align:left; transition:background .16s,color .16s,border-color .16s,transform .16s}
.sim-chip:hover{border-color:var(--coral); color:var(--coral-2); transform:translateY(-1px)}
.sim-chip:disabled{opacity:.55; cursor:default; transform:none}
.sim-chip.used{background:var(--bg-soft); color:var(--faint); border-color:transparent}
.sim-chip.used::before{content:"\2713  "; color:var(--teal); font-weight:800}
.sim-reset{margin-top:12px}
/* right: reasoning panel */
.sim-side{background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); padding:20px 20px 22px; box-shadow:var(--sh-sm)}
.sim-side-h{font-size:12px; font-weight:800; letter-spacing:.06em; text-transform:uppercase; color:var(--coral-2); margin-bottom:14px}
.sim-loop{display:flex; flex-direction:column; gap:8px}
.sim-stage{display:flex; align-items:center; gap:12px; padding:11px 13px; border-radius:var(--r); border:1px solid var(--line); background:var(--bg); opacity:.5; transition:opacity .3s,background .3s,border-color .3s}
.sim-stage .n{width:28px; height:28px; flex-shrink:0; border-radius:9px; display:grid; place-items:center; font-family:var(--display); font-weight:800; font-size:13px; color:#fff; background:var(--faint); transition:background .3s}
.sim-stage .sx{flex:1; min-width:0}
.sim-stage .sx b{font-family:var(--display); font-size:14.5px; color:var(--ink); display:block; line-height:1.2}
.sim-stage .sx p{font-size:12.5px; color:var(--muted); margin-top:1px; line-height:1.35}
.sim-stage .tick{width:20px; flex-shrink:0; color:var(--teal); opacity:0; transition:opacity .3s}
.sim-stage .tick svg{width:20px;height:20px}
.sim-stage.active,.sim-stage.done{opacity:1}
.sim-stage.active{background:var(--tint-sun); border-color:var(--marigold)}
.sim-stage.active .n{background:var(--marigold-2)}
.sim-stage.done{background:#fff}
.sim-stage.done .n{background:var(--teal)}
.sim-stage.done .tick{opacity:1}
.sim-look{display:flex; gap:9px; align-items:baseline; margin-top:14px; padding:11px 14px; border-radius:var(--r); background:var(--tint-mint); font-size:13.5px}
.sim-look .k{font-weight:800; color:var(--teal-2); flex-shrink:0; font-size:11px; text-transform:uppercase; letter-spacing:.05em}
.sim-look .v{color:var(--ink-2)}
.sim-branch{display:flex; gap:12px; align-items:flex-start; margin-top:12px; padding:14px 16px; border-radius:var(--r); border:1px solid var(--line)}
.sim-branch .bi{display:none; flex-shrink:0}
.sim-branch .bi svg{width:24px;height:24px}
.sim-branch.answer .bi.ans{display:inline-flex; color:var(--teal)}
.sim-branch.handoff .bi.han{display:inline-flex; color:var(--cobalt)}
.sim-branch.defer .bi.def{display:inline-flex; color:var(--marigold-2)}
.sim-branch.answer{background:var(--tint-mint); border-color:transparent}
.sim-branch.handoff{background:var(--tint-sky); border-color:transparent}
.sim-branch.defer{background:var(--tint-sun); border-color:transparent}
.sim-branch .bl{font-family:var(--display); font-size:15px; color:var(--ink); display:block}
.sim-branch .bs{font-size:13px; color:var(--muted); margin-top:2px}
.sim-why{display:flex; flex-direction:column; gap:4px; margin-top:12px; padding:13px 16px; border-radius:var(--r); background:var(--ink)}
.sim-why .wl{font-size:11px; font-weight:800; letter-spacing:.08em; text-transform:uppercase; color:var(--marigold)}
.sim-why .wv{font-size:14.5px; line-height:1.5; color:#F1E9DC}
/* "solved by [stage]" tag on the demo why-cards */
.sim-solve{display:inline-flex; align-items:center; gap:7px; margin-top:14px; font-size:13px; font-weight:800; color:var(--coral-2)}
.sim-solve svg{width:16px;height:16px}

/* ---------- reception engine (autonomous decision loop) ---------- */
.eng{background:var(--bg-soft); border:1px solid var(--line); border-radius:var(--r-xl); padding:22px}
.eng-bar{display:flex; flex-wrap:wrap; gap:14px; align-items:center; justify-content:space-between; margin-bottom:18px}
.eng-sample{display:flex; align-items:center; gap:10px; font-size:14px; background:#fff; border:1px solid var(--line); border-radius:var(--pill); padding:8px 16px; box-shadow:var(--sh-sm); min-width:0}
.eng-sample .k{font-size:11px; font-weight:800; text-transform:uppercase; letter-spacing:.05em; color:var(--coral-2); flex-shrink:0}
.eng-sample .q{color:var(--ink-2); font-style:italic; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.eng-actions{display:flex; gap:10px; align-items:center; flex-wrap:wrap; flex-shrink:0}
/* diagram grid */
.eng-diagram{display:grid; grid-template-columns:minmax(0,.86fr) minmax(0,1.28fr) minmax(0,.92fr); gap:16px; align-items:stretch}
@media(max-width:980px){.eng-diagram{grid-template-columns:1fr}}
.eng-col{display:flex; flex-direction:column; gap:14px; min-width:0}
.eng-block{background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:15px 17px; box-shadow:var(--sh-sm)}
.eng-k{display:flex; align-items:center; gap:9px; font-weight:800; font-size:14px; color:var(--ink); margin-bottom:6px}
.eng-k svg{width:18px; height:18px; color:var(--coral); flex-shrink:0}
.eng-block p{font-size:12.5px; color:var(--muted); line-height:1.5}
/* engine core loop */
.eng-loop{background:linear-gradient(180deg,#fff,#FBF6EC); border:1.5px solid var(--line-2); border-radius:var(--r-lg); padding:16px; box-shadow:var(--sh-sm)}
.eng-corek{display:block; font-size:11px; font-weight:800; text-transform:uppercase; letter-spacing:.06em; color:var(--coral-2); margin-bottom:12px; text-align:center}
.eng-phase{display:flex; align-items:center; gap:11px; padding:11px 13px; border-radius:var(--r); border:1px solid var(--line); background:#fff; opacity:.6; transition:opacity .25s,border-color .25s,box-shadow .25s}
.eng-phase .pi{width:30px; height:30px; flex-shrink:0; border-radius:9px; display:grid; place-items:center; background:var(--bg-soft); color:var(--muted); transition:background .25s,color .25s}
.eng-phase .pi svg{width:17px; height:17px}
.eng-phase b{font-family:var(--display); font-size:14.5px; color:var(--ink)}
.eng-phase.on{opacity:1; border-color:var(--coral); box-shadow:var(--sh-pop)}
.eng-phase.on .pi{background:var(--coral); color:#fff}
.eng-arrow{text-align:center; color:var(--faint); font-size:14px; line-height:1; margin:4px 0}
.eng-gate{margin-top:11px; padding:10px 14px; border-radius:var(--r); background:var(--tint-sun); border:1px dashed var(--marigold); font-weight:800; font-size:13px; color:var(--marigold-2); display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap; transition:background .25s,border-color .25s,color .25s}
.eng-gate.on{background:var(--tint-mint); border-style:solid; border-color:var(--teal); color:var(--teal-2)}
.eng-loopback{display:inline-flex; align-items:center; gap:6px; font-size:11.5px}
.eng-loopback svg{width:15px; height:15px}
.eng-trace{background:var(--bg-ink); color:#D9CEC0; border-radius:var(--r); padding:14px 16px; font-size:12.5px; line-height:1.5; min-height:132px; max-height:214px; overflow-y:auto}
.eng-trace .ln{opacity:0; transform:translateY(6px); transition:opacity .3s,transform .3s; margin-bottom:7px; display:flex; gap:8px}
.eng-trace .ln:last-child{margin-bottom:0}
.eng-trace .ln.show{opacity:1; transform:none}
.eng-trace .ln .mk{color:var(--marigold); flex-shrink:0; font-weight:800}
.eng-trace .ln.g .mk{color:var(--teal)}
.eng-trace .ln.o .mk{color:var(--coral)}
.eng-hint{color:#948877; font-style:italic; font-size:12.5px; line-height:1.55; display:block}
/* tool matrix */
.eng-tools .eng-k{margin-bottom:2px}
.eng-tgroup{background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:11px 13px; box-shadow:var(--sh-sm)}
.eng-tgroup .tg{display:block; font-size:10.5px; font-weight:800; text-transform:uppercase; letter-spacing:.05em; color:var(--coral-2); margin-bottom:8px}
.eng-tool{display:inline-block; font-size:12px; font-weight:700; padding:5px 10px; border-radius:var(--pill); background:var(--bg-soft); color:var(--ink-2); margin:0 6px 6px 0; border:1px solid transparent; transition:background .25s,color .25s,transform .25s,box-shadow .25s}
.eng-tool.used{border-color:var(--line-2)}
.eng-tool.fire{background:var(--coral); color:#fff; box-shadow:var(--sh-pop); transform:translateY(-1px)}
/* guardrail band */
.eng-guard{display:flex; flex-wrap:wrap; align-items:center; gap:10px; margin-top:16px; padding:14px 18px; border-radius:var(--r-lg); background:var(--ink); color:#EDE4D6}
.eng-gk{display:inline-flex; align-items:center; gap:9px; font-weight:800; font-size:14px; color:#fff; margin-right:4px}
.eng-gk svg{width:18px; height:18px; color:var(--marigold); flex-shrink:0}
.eng-gitem{font-size:12.5px; font-weight:700; padding:6px 12px; border-radius:var(--pill); background:rgba(255,255,255,.09); color:#E4D9CB; transition:background .25s,color .25s,box-shadow .25s}
.eng-gitem.fire{background:var(--marigold); color:#3A2A06; box-shadow:0 0 0 4px rgba(255,176,32,.22)}
/* output row */
.eng-out{display:flex; flex-wrap:wrap; align-items:center; gap:10px; margin-top:14px}
.eng-ostep{display:inline-flex; align-items:center; gap:9px; font-weight:800; font-size:14px; padding:11px 16px; border-radius:var(--r); background:#fff; border:1px solid var(--line); color:var(--muted); box-shadow:var(--sh-sm); transition:color .25s,border-color .25s}
.eng-ostep svg{width:18px; height:18px}
.eng-ostep.on{color:var(--ink); border-color:var(--teal)}
.eng-ostep.on svg{color:var(--teal)}
.eng-oarrow{color:var(--faint); font-weight:800}

/* ---------- blog ---------- */
.blog-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:26px}
@media(max-width:960px){.blog-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.blog-grid{grid-template-columns:1fr}}
.blog-card{display:flex; flex-direction:column; background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sh-sm); transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s; color:inherit}
.blog-card:hover{transform:translateY(-5px); box-shadow:var(--sh)}
.bc-img{aspect-ratio:16/9; overflow:hidden; background:var(--bg-soft)}
.bc-img img{width:100%; height:100%; object-fit:cover; display:block; transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.blog-card:hover .bc-img img{transform:scale(1.04)}
.ph-grad{width:100%; height:100%; background:linear-gradient(120deg,var(--tint-peach),var(--tint-sun) 55%,var(--tint-mint))}
.bc-body{padding:20px 22px 22px; display:flex; flex-direction:column; gap:8px; flex:1}
.bc-tag{font-size:11px; font-weight:800; letter-spacing:.06em; text-transform:uppercase; color:var(--coral-2)}
.blog-card h3{font-size:18.5px; line-height:1.3; letter-spacing:-.01em; color:var(--ink)}
.bc-body p{color:var(--muted); font-size:14.5px; line-height:1.55; flex:1}
.bc-date{color:var(--faint); font-size:12.5px; margin-top:4px}
/* article */
.post-wrap{max-width:760px}
.post-top{display:flex; flex-wrap:wrap; align-items:center; gap:12px; font-size:13px; margin-bottom:18px}
.post-back{color:var(--coral-2); font-weight:800}
.post-tag{font-weight:800; letter-spacing:.06em; text-transform:uppercase; color:var(--coral-2); font-size:11.5px}
.post-date{color:var(--faint)}
.post-h1{font-size:clamp(30px,4.2vw,44px); line-height:1.12; letter-spacing:-.03em; margin:0 0 18px}
.post-byline{display:flex; align-items:center; gap:10px; color:var(--muted); font-size:14px; margin-bottom:26px}
.post-av{flex:0 0 auto; width:30px; height:30px; border-radius:8px; display:grid; place-items:center; color:#fff; font-size:15px; font-weight:800; line-height:1; letter-spacing:0; background:linear-gradient(135deg,var(--blue),var(--blue-2))}
.post-hero{margin:0 0 32px; border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--line); aspect-ratio:16/9; box-shadow:var(--sh)}
.post-hero img,.post-hero .ph-grad{width:100%; height:100%; object-fit:cover; display:block}
.post-body{font-size:17.5px; line-height:1.75; color:var(--ink-2)}
.post-body h2{font-size:clamp(22px,2.6vw,28px); margin:38px 0 12px; letter-spacing:-.02em; color:var(--ink)}
.post-body h3{font-size:20px; margin:26px 0 10px; color:var(--ink)}
.post-body p{margin:0 0 18px}
.post-body ul,.post-body ol{margin:0 0 18px; padding-left:24px; display:flex; flex-direction:column; gap:9px}
.post-body li{line-height:1.62}
.post-body a{color:var(--coral-2); text-decoration:underline; text-underline-offset:2px; font-weight:600}
.post-body b,.post-body strong{color:var(--ink); font-weight:800}
.post-body .cmp-table{margin:6px 0 24px; font-size:15px}
.post-faq{margin-top:46px}
.post-faq h2{font-size:24px; margin-bottom:16px}
.post-rel{margin-top:48px; border-top:1px solid var(--line); padding-top:26px}
.post-rel h3{font-size:13px; text-transform:uppercase; letter-spacing:.07em; color:var(--faint); margin-bottom:16px}
.rel-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
@media(max-width:640px){.rel-grid{grid-template-columns:1fr}}
.rel-card{border:1px solid var(--line); border-radius:var(--r); padding:16px 18px; background:#fff; box-shadow:var(--sh-sm); transition:transform .2s,box-shadow .2s; color:inherit}
.rel-card:hover{transform:translateY(-3px); box-shadow:var(--sh)}
.rel-card h4{font-size:15.5px; line-height:1.35; margin-top:6px; color:var(--ink)}

/* answer-first lead block (AEO) */
.answer{max-width:820px; margin:0 auto 8px; background:#fff; border:1px solid var(--line); border-left:4px solid var(--coral); border-radius:var(--r); padding:22px 26px; box-shadow:var(--sh-sm)}
.answer p{font-size:17px; line-height:1.6; color:var(--ink-2)}
.answer p b{color:var(--ink)}

/* comparison table (X vs Y vs Z) */
.cmp-table{width:100%; border-collapse:separate; border-spacing:0; font-size:15px; background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sh-sm)}
.cmp-table th,.cmp-table td{padding:15px 18px; text-align:left; border-bottom:1px solid var(--line); vertical-align:top}
.cmp-table thead th{font-family:var(--display); font-weight:800; font-size:15.5px; color:var(--ink); background:var(--bg-soft)}
.cmp-table thead th.win{background:var(--ink); color:#fff}
.cmp-table tbody th{font-weight:700; color:var(--ink-2); width:24%}
.cmp-table td.win{background:rgba(255,107,74,.05); color:var(--ink); font-weight:600}
.cmp-table td.no{color:var(--faint)}
.cmp-table tr:last-child th,.cmp-table tr:last-child td{border-bottom:0}
.cmp-table .yes{color:var(--teal); font-weight:800}
@media(max-width:720px){.cmp-table{font-size:13.5px} .cmp-table th,.cmp-table td{padding:11px 12px}}

/* compact conversation examples (solutions) */
.convo{background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); padding:24px; box-shadow:var(--sh-sm); display:flex; flex-direction:column; height:100%; transition:transform .25s,box-shadow .25s}
.convo:hover{transform:translateY(-4px); box-shadow:var(--sh)}
.convo .clbl{display:flex; align-items:center; gap:9px; font-size:12px; font-weight:800; letter-spacing:.06em; text-transform:uppercase; color:var(--coral-2); margin-bottom:16px}
.convo .clbl svg{width:17px; height:17px; color:var(--coral)}
.convo .thread{display:flex; flex-direction:column; gap:9px; flex:1}
.cb{max-width:90%; padding:9px 13px; border-radius:14px; font-size:13.5px; line-height:1.5}
.cb.in{background:var(--bg-soft); align-self:flex-start; border-top-left-radius:5px; color:var(--ink)}
.cb.out{background:#DCF3E4; align-self:flex-end; border-top-right-radius:5px; color:#0B3D24}
.cb .tag{display:inline-block; font-size:9.5px; font-weight:800; color:var(--cobalt); background:rgba(47,91,255,.1); padding:1px 6px; border-radius:5px; margin-right:5px; vertical-align:middle}
.convo .take{margin-top:16px; padding-top:14px; border-top:1px solid var(--line); font-size:13.5px; color:var(--muted); display:flex; gap:9px; align-items:flex-start}
.convo .take svg{width:17px; height:17px; color:var(--teal); flex-shrink:0; margin-top:2px}

/* pills / chips */
.chips{display:flex; flex-wrap:wrap; gap:10px}
.chip{display:inline-flex; align-items:center; gap:8px; padding:10px 16px; border-radius:var(--pill); background:#fff; border:1.5px solid var(--line-2); font-weight:700; font-size:14px; box-shadow:var(--sh-sm)}
.chip svg{width:17px;height:17px;color:var(--coral)}
.chip:nth-child(2) svg{color:var(--teal)} .chip:nth-child(3) svg{color:var(--cobalt)} .chip:nth-child(4) svg{color:var(--lilac)} .chip:nth-child(5) svg{color:var(--marigold-2)}
.badge{display:inline-flex; align-items:center; gap:6px; padding:6px 13px; border-radius:var(--pill); background:rgba(255,107,74,.12); color:var(--coral-2); font-weight:800; font-size:12.5px}
.badge.green{background:rgba(18,183,106,.13); color:var(--green-2)}
.badge.amber{background:rgba(255,176,32,.16); color:var(--marigold-2)}

/* checklist (trust / guardrails) */
.checklist{list-style:none; padding:0; margin:20px 0 0; display:flex; flex-direction:column; gap:15px}
.checklist li{display:flex; gap:13px; font-size:16px; line-height:1.5; color:var(--muted)}
.checklist li svg{width:23px; height:23px; color:var(--teal); flex-shrink:0; margin-top:1px}
.checklist li b{color:var(--ink); font-weight:800}

/* result / outcome card */
.rcard{background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); padding:28px; box-shadow:var(--sh-sm); position:relative; overflow:hidden; transition:transform .25s,box-shadow .25s}
.rcard:hover{transform:translateY(-4px); box-shadow:var(--sh)}
.rcard .k{display:block; font-size:12px; font-weight:800; letter-spacing:.07em; text-transform:uppercase; color:var(--coral-2); margin-bottom:14px}
.rcard .v{font-family:var(--display); font-weight:800; font-size:44px; letter-spacing:-.03em; color:var(--ink); line-height:1}
.rcard .vl{font-weight:800; color:var(--ink-2); margin:6px 0 12px; font-size:15px}
.rcard p{color:var(--muted); font-size:15px; line-height:1.55}
.rcard .tag{font-size:11px; color:var(--faint); font-style:italic; margin-top:12px; display:block}

/* compare (DIY vs done-for-you) */
.compare{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:22px}
@media(max-width:760px){.compare{grid-template-columns:1fr}}
.cmp{border-radius:var(--r-lg); padding:34px; border:1px solid var(--line)}
.cmp.diy{background:var(--bg-soft); border-color:transparent}
.cmp.dfy{background:var(--ink); color:#E8DDCF; border-color:transparent; box-shadow:var(--sh-lg)}
.cmp h3{font-size:23px; margin-bottom:20px}
.cmp.dfy h3{color:#fff}
.cmp ul{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:14px}
.cmp li{display:flex; gap:12px; font-size:15.5px; line-height:1.5}
.cmp li svg{width:20px;height:20px; flex-shrink:0; margin-top:2px}
.cmp.diy li svg{color:var(--faint)}
.cmp.dfy li svg{color:var(--teal)}
.cmp .tag{display:inline-block; font-size:12px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; margin-bottom:8px}
.cmp.diy .tag{color:var(--faint)} .cmp.dfy .tag{color:var(--marigold)}

/* use-case list */
.uc{display:flex; gap:16px; padding:24px; border-radius:var(--r-lg); background:#fff; border:1px solid var(--line); box-shadow:var(--sh-sm); transition:transform .22s,box-shadow .22s}
.uc:hover{transform:translateY(-3px); box-shadow:var(--sh)}
.uc .ico{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;flex-shrink:0; background:var(--tint-peach); color:var(--coral-2)}
.uc .ico svg{width:23px;height:23px}
.uc h3{font-size:17.5px; margin-bottom:5px}
.uc p{color:var(--muted); font-size:14px}
.uc .k{font-size:12px; font-weight:800; color:var(--coral-2); text-transform:uppercase; letter-spacing:.07em; margin-bottom:3px; display:block}

/* image figure */
.figimg{border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--line); box-shadow:var(--sh); background:var(--bg-soft)}
.figimg img{width:100%; aspect-ratio:3/2; object-fit:cover; display:block}

/* faq */
.faq{max-width:840px; margin:0 auto; display:flex; flex-direction:column; gap:12px}
.qa{background:#fff; border:1px solid var(--line); border-radius:var(--r); overflow:hidden; transition:border-color .2s}
.qa[open]{border-color:var(--line-2)}
.qa summary{list-style:none; cursor:pointer; padding:22px 26px; font-family:var(--display); font-weight:800; font-size:17.5px; color:var(--ink); display:flex; align-items:center; gap:14px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+"; margin-left:auto; font-size:26px; color:var(--coral); font-weight:400; transition:transform .2s; line-height:1}
.qa[open] summary::after{transform:rotate(45deg)}
.qa .a{padding:0 26px 22px; color:var(--muted); font-size:15.5px; line-height:1.62}

/* glossary (definitional page) */
.gloss{max-width:860px; margin:0 auto}
.gitem{padding:22px 2px; border-bottom:1px solid var(--line)}
.gitem:last-child{border-bottom:0}
.gitem h3{font-size:19px; margin:0 0 6px; letter-spacing:-.01em; scroll-margin-top:96px}
.gitem p{margin:0; color:var(--muted); font-size:15.5px; line-height:1.6}

/* grouped FAQ page (100 Q&A) */
.faq-nav{display:flex; flex-wrap:wrap; gap:9px; justify-content:center; max-width:900px; margin:0 auto 44px}
.faq-nav .chip{cursor:pointer}
.faq-group{max-width:860px; margin:0 auto 40px}
.faq-group > h2{font-size:clamp(21px,2.3vw,28px); margin:0 0 16px; scroll-margin-top:96px; display:flex; align-items:center; gap:11px}
.faq-group > h2 .n{font-size:13px; font-weight:800; color:var(--coral-2); background:var(--tint-peach); border-radius:var(--pill); padding:3px 11px; font-family:var(--sans)}

/* cta band */
.ctaband{position:relative; border-radius:var(--r-xl); padding:60px; background:var(--ink); color:#fff; overflow:hidden; text-align:center; box-shadow:var(--sh-lg)}
.ctaband::before{content:""; position:absolute; inset:-50% -10% auto -10%; height:440px; background:radial-gradient(50% 62% at 50% 0,rgba(255,176,32,.34),transparent 70%)}
.ctaband::after{content:""; position:absolute; width:260px;height:260px;border-radius:50%; background:rgba(255,107,74,.28); filter:blur(50px); right:-40px; bottom:-80px}
.ctaband > *{position:relative}
.ctaband h2{color:#fff; font-size:clamp(30px,3.8vw,46px); margin-bottom:16px}
.ctaband p{color:#E4D9CB; max-width:580px; margin:0 auto 28px; font-size:18.5px}
.ctaband .btns{display:flex; gap:14px; justify-content:center; flex-wrap:wrap}

/* form */
.form{background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); padding:32px; box-shadow:var(--sh)}
.form .row{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:16px}
@media(max-width:560px){.form .row{grid-template-columns:1fr}}
.field{margin-bottom:16px}
.field label{display:block; font-weight:800; font-size:14px; color:var(--ink); margin-bottom:7px}
.field input,.field textarea,.field select{width:100%; font-family:var(--sans); font-size:15.5px; padding:14px 16px; border:1.5px solid var(--line-2); border-radius:var(--r); background:var(--bg); color:var(--ink); transition:border-color .18s,background .18s,box-shadow .18s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none; border-color:var(--cobalt); background:#fff; box-shadow:0 0 0 4px rgba(47,91,255,.12)}
.field textarea{min-height:112px; resize:vertical}

/* footer */
.ft{background:var(--bg-ink); color:#A99C8C; padding:66px 0 30px}
.ft-top{display:grid; grid-template-columns:minmax(0,1.5fr) repeat(4,minmax(0,1fr)); gap:30px}
@media(max-width:820px){.ft-top{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.ft-top{grid-template-columns:1fr}}
.ft .brand{color:#fff}
.ft .brand img{filter:brightness(0) invert(1)}
.ft .brand .b-en{color:#A99C8C}
.ft .brand .b-en::before{background:rgba(255,255,255,.24)}
.ft .bio{color:#9A8D7D; font-size:14.5px; margin-top:14px; max-width:300px}
.ft h4{color:#fff; font-size:13px; letter-spacing:.08em; text-transform:uppercase; margin-bottom:16px; font-family:var(--sans); font-weight:800}
.ft ul{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:11px}
.ft a{color:#A99C8C; font-size:15px; transition:color .18s}
.ft a:hover{color:#fff}
.ft-bot{margin-top:46px; padding-top:24px; border-top:1px solid rgba(255,255,255,.1); display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; font-size:13.5px; color:#7C7061}

/* ---------- real-scene imagery ---------- */
.hero-visual{position:relative; padding:6px 0 40px 34px}
.hero-photo{border-radius:24px; overflow:hidden; box-shadow:var(--sh-lg); border:1px solid var(--line); aspect-ratio:4/3}
.hero-photo img{width:100%; height:100%; object-fit:cover}
.hero-visual .chat{position:absolute; left:-30px; bottom:0; width:270px; max-width:74%; margin:0; transform:none; box-shadow:0 30px 60px -22px rgba(16,24,40,.4)}
.hero-visual .chat .chat-body{min-height:0; max-height:250px; overflow:hidden}
.hero-visual .float-badge{position:absolute; right:-14px; top:24px; background:#fff; border:1px solid var(--line); border-radius:16px; padding:12px 15px; box-shadow:var(--sh); display:flex; align-items:center; gap:11px}
.hero-visual .float-badge .d{width:38px;height:38px;border-radius:11px;background:var(--coral);display:grid;place-items:center;color:#fff}
.hero-visual .float-badge .d svg{width:20px;height:20px}
.hero-visual .float-badge b{display:block; font-family:var(--display); font-size:15px; color:var(--ink)}
.hero-visual .float-badge span{font-size:12px; color:var(--muted)}

/* photo band (industries) */
.photoband{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px}
@media(max-width:760px){.photoband{grid-template-columns:1fr}}
.pcard{position:relative; display:block; border-radius:var(--r-lg); overflow:hidden; aspect-ratio:5/4; box-shadow:var(--sh); border:1px solid var(--line); color:inherit; text-decoration:none}
a.pcard{transition:transform .25s cubic-bezier(.2,.7,.2,1), box-shadow .25s}
a.pcard:hover{transform:translateY(-4px); box-shadow:var(--sh-lg)}
.ind-link{color:#fff; font-weight:800; text-decoration:underline; text-underline-offset:3px; white-space:nowrap}
.ind-link:hover{color:var(--marigold)}
.pcard img{width:100%; height:100%; object-fit:cover; transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.pcard:hover img{transform:scale(1.05)}
.pcard::after{content:""; position:absolute; inset:0; background:linear-gradient(to top,rgba(24,14,6,.8),transparent 55%)}
.pcard .cap{position:absolute; left:20px; bottom:18px; right:20px; z-index:1; color:#fff}
.pcard .cap b{font-family:var(--display); font-size:19px; display:block; letter-spacing:-.01em}
.pcard .cap span{font-size:13px; opacity:.85}

/* split image + content */
.split{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:48px; align-items:center}
@media(max-width:820px){.split{grid-template-columns:1fr; gap:30px} .split.rev .split-img{order:-1}}
.split-img{border-radius:var(--r-xl); overflow:hidden; box-shadow:var(--sh-lg); border:1px solid var(--line); aspect-ratio:4/3}
.split-img img{width:100%; height:100%; object-fit:cover}

/* floating whatsapp */
.wa-fab{position:fixed; right:22px; bottom:22px; z-index:90; width:60px; height:60px; border-radius:50%; background:#25D366; display:grid; place-items:center; box-shadow:0 14px 34px -10px rgba(37,211,102,.6); transition:transform .2s}
.wa-fab:hover{transform:scale(1.08)}
.wa-fab svg{width:30px;height:30px;color:#fff}

/* reveal */
.reveal{opacity:0; transform:translateY(24px); transition:opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1; transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

/* (bilingual is now one physical file per language; no inline lang toggling) */

/* mobile */
@media(max-width:900px){
  .nav,.hdr-cta .btn-ghost{display:none}
  .burger{display:flex}
  .hero-in{grid-template-columns:minmax(0,1fr); gap:34px}
  .hero .chat{transform:none; margin:0 auto; max-width:392px}
  .hero-stage{padding:8px 0}
  .float-obj{width:80px} .float-obj.o1{display:none} .float-obj.o2{left:-6px; bottom:-8px; width:76px} .float-obj.o3{right:-8px; top:auto; bottom:118px; width:86px}
  .hero-visual{padding:0}
  .hero-visual .chat{display:none}
  .hero-photo{aspect-ratio:5/4}
  .hero-visual .float-badge{right:8px; top:10px; padding:9px 12px}
  .nav.open{display:flex; position:absolute; top:72px; left:0; right:0; flex-direction:column; background:#fff; border-bottom:1px solid var(--line); padding:12px 20px 18px; gap:2px; box-shadow:var(--sh)}
  .nav.open a{padding:13px 12px; font-size:16px}
  .nav.open .btn{margin-top:8px}
  .grid.g2,.compare,.hero-in{gap:26px}
}
@media(max-width:640px){
  body{font-size:16.5px}
  .brand .b-en{display:none}
  .hdr-cta .btn-primary{display:none}
  .hdr-in{gap:12px; height:64px}
  .hero{padding:44px 0 28px}
  .hero h1{font-size:35px}
  .hero .lead{font-size:17.5px; margin-top:18px}
  .hero-cta{gap:10px} .hero-cta .btn{flex:1; justify-content:center}
  .sec{padding:60px 0}
  .sec-head{margin-bottom:36px}
  .sec-head h2,.ctaband h2{font-size:29px}
  .wrap{padding:0 18px}
  .ctaband{padding:40px 24px}
  .ctaband .btns .btn{width:100%}
  .card,.step,.cmp,.form,.uc{padding:22px}
  .stat .v{font-size:36px}
  .spot{gap:24px}
  .spot-obj{padding:26px; aspect-ratio:4/3}
  .wa-fab{width:54px;height:54px;right:16px;bottom:16px}
  .grid.g2{grid-template-columns:1fr!important}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important} .reveal{opacity:1;transform:none} .float-obj{animation:none}}