/* ============================================================
   ÆTHER — premium web+AI studio
   Design system. Vanilla, no build. Dark obsidian editorial.
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  /* surfaces */
  --bg:#050609;
  --bg-2:#080A10;
  --surface:#0C0F17;
  --surface-2:#10141E;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.05);
  --soft:rgba(255,255,255,.03);

  /* ink */
  --ink:#F5F7FC;
  --ink-2:#C3CBDA;
  --muted:#8B97AD;
  --faint:#8791A3;
  --faint-line:#5A6478;

  /* accent — restrained cold electric + iridescent signature */
  --accent:#5B8CFF;
  --accent-2:#37E6C8;
  --accent-3:#C8A46A;             /* warm bronze — luxe tension, hairline detail only */
  --grad:linear-gradient(115deg,#6E7CFF 0%,#37E6C8 60%,#8FE9FF 100%);
  --grad-warm:linear-gradient(115deg,#C8A46A 0%,#6E7CFF 100%);
  --glow:radial-gradient(60% 60% at 50% 0%,rgba(91,140,255,.22),transparent 70%);

  /* glass */
  --glass:rgba(255,255,255,.028);
  --glass-2:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.10);

  /* geometry */
  --r:14px; --r-lg:22px; --r-xl:30px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-expo:cubic-bezier(.16,1,.3,1);
  --ease-back:cubic-bezier(.34,1.4,.5,1);

  /* type */
  --f-display:'Unbounded','Onest',system-ui,sans-serif;
  --f-body:'Onest',system-ui,-apple-system,sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,monospace;

  /* rhythm */
  --gut:clamp(20px,4.5vw,64px);
  --maxw:1320px;
}

*{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  overflow-x:clip;
  scroll-behavior:smooth;
}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto} }

body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:var(--f-body);
  font-size:clamp(15px,14.3px + 0.19vw,17px);
  line-height:1.62;
  font-feature-settings:"ss01","cv01";
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:clip;
}

::selection{background:rgba(91,140,255,.30);color:#fff}

a{color:inherit;text-decoration:none}
img,svg,canvas{display:block;max-width:100%}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}

/* ---------- Layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}
section{position:relative}
.sec{padding-block:clamp(72px,11vw,160px)}
.divider{border-top:1px solid var(--line)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,80px);align-items:start}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.faq-grid{display:grid;grid-template-columns:0.8fr 1.2fr;gap:clamp(28px,5vw,70px);align-items:start}
.skip{position:fixed;left:16px;top:-60px;z-index:200;background:#fff;color:#05060a;padding:10px 16px;border-radius:10px;font-weight:600;transition:top .25s var(--ease)}
.skip:focus{top:16px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.page-h1{font-size:clamp(24px,5.4vw,74px)}

/* ---------- Background layers ---------- */
#bg-core{position:fixed;inset:0;z-index:0;pointer-events:none}
.grain{
  position:fixed;inset:-50%;z-index:2;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
  animation:grain 6s steps(6) infinite;
}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-4%,3%)}40%{transform:translate(3%,-4%)}60%{transform:translate(-3%,2%)}80%{transform:translate(2%,4%)}100%{transform:translate(0,0)}}
.vignette{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(120% 80% at 50% -10%,rgba(91,140,255,.10),transparent 55%),
             radial-gradient(100% 100% at 50% 120%,rgba(0,0,0,.6),transparent 60%);}
#app{position:relative;z-index:3}

/* scroll progress */
.progress{position:fixed;top:0;left:0;height:2px;width:100%;z-index:60;transform:scaleX(0);transform-origin:0 50%;background:var(--grad)}

/* ---------- Typography ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--f-mono);font-size:11px;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;color:var(--muted);
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--grad);opacity:.9}
.eyebrow.center::after{content:"";width:24px;height:1px;background:var(--grad);opacity:.9}

.display{
  font-family:var(--f-display);font-weight:800;color:var(--ink);
  letter-spacing:-.03em;line-height:.98;text-wrap:balance;
}
h1.display{font-size:clamp(36px,6.0vw,82px);line-height:1.0}
h2.display{font-size:clamp(30px,4.4vw,60px);line-height:1.02}
h3{font-family:var(--f-display);font-weight:700;letter-spacing:-.02em;color:var(--ink);line-height:1.05;margin:0}

.lead{font-size:clamp(17px,1.5vw,21px);line-height:1.55;color:var(--ink-2);max-width:60ch;text-wrap:pretty}
.muted{color:var(--muted)}
.mono{font-family:var(--f-mono)}
.num{font-family:var(--f-display);font-variant-numeric:tabular-nums}

.hl{position:relative;z-index:0;color:#fff;white-space:nowrap}
.hl::after{content:"";position:absolute;left:-2%;right:-2%;bottom:.08em;height:.30em;border-radius:5px;
  background:var(--grad);opacity:.55;z-index:-1;transform:scaleX(0);transform-origin:0 50%;
  animation:hlin 1s .5s var(--ease-expo) forwards}
@keyframes hlin{to{transform:scaleX(1)}}
.grad-ink{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stroke{color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.5)}

/* section header block */
.sec-head{display:flex;flex-direction:column;gap:18px;max-width:70ch}
.sec-head .kicker{color:var(--faint);font-family:var(--f-mono);font-size:12px}
.sec-num{font-family:var(--f-mono);font-size:12px;color:var(--faint);letter-spacing:.1em}

/* ---------- Buttons ---------- */
.btn{
  --bx:50%;--by:50%;
  position:relative;display:inline-flex;align-items:center;gap:10px;
  padding:15px 26px;border-radius:100px;font-weight:600;font-size:15px;
  color:#05060a;background:#fff;overflow:hidden;isolation:isolate;
  transition:transform .35s var(--ease),box-shadow .4s var(--ease);
  will-change:transform;
}
.btn::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--grad);opacity:0;transition:opacity .4s var(--ease)}
.btn::after{content:"";position:absolute;width:180px;height:180px;left:var(--bx);top:var(--by);
  transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(255,255,255,.7),transparent 60%);opacity:0;transition:opacity .4s}
.btn:hover{box-shadow:0 12px 40px -8px rgba(91,140,255,.55)}
.btn:hover::before{opacity:1}
.btn .ico{transition:transform .4s var(--ease-back)}
.btn:hover .ico{transform:translateX(4px)}

.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn.ghost::before{background:var(--glass-2)}
.btn.ghost:hover{border-color:rgba(255,255,255,.28);box-shadow:none}
.btn.ghost:hover::before{opacity:1}

.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ---------- Nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:transform .5s var(--ease),background .4s,border-color .4s;
  border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(6,8,13,.72);backdrop-filter:blur(18px) saturate(1.3);border-color:var(--line)}
.nav.hide{transform:translateY(-104%)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--f-display);font-weight:800;letter-spacing:-.02em;font-size:20px;color:var(--ink)}
.brand .mark{width:26px;height:26px}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:14px;color:var(--ink-2);position:relative;transition:color .3s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;height:1px;width:0;background:var(--grad);transition:width .35s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:14px}
.lang-switch{display:inline-flex;align-items:center;gap:2px;padding:3px;border:1px solid var(--line);border-radius:999px;font-family:var(--f-mono,monospace);font-size:11.5px;letter-spacing:.04em}
.lang-switch a,.lang-switch span{display:inline-flex;align-items:center;justify-content:center;min-width:30px;height:24px;padding:0 8px;border-radius:999px;color:var(--muted);text-decoration:none;transition:color .25s,background .25s}
.lang-switch a:hover{color:var(--ink)}
.lang-switch .on{color:var(--ink);background:var(--glass-2,rgba(255,255,255,.06))}
.mmenu .lang-switch{margin-top:22px;align-self:flex-start}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.burger span{width:18px;height:1.5px;background:var(--ink);transition:.3s var(--ease)}

/* mobile menu */
.mmenu{position:fixed;inset:0;z-index:49;background:rgba(5,6,9,.96);backdrop-filter:blur(20px);
  display:flex;flex-direction:column;justify-content:center;gap:8px;padding:var(--gut);
  transform:translateY(-100%);visibility:hidden;transition:transform .55s var(--ease),visibility 0s .55s;pointer-events:none}
.mmenu.open{transform:translateY(0);visibility:visible;transition:transform .55s var(--ease),visibility 0s 0s;pointer-events:auto}
.mmenu a{font-family:var(--f-display);font-weight:700;font-size:clamp(30px,8vw,52px);color:var(--ink);letter-spacing:-.02em}

/* ---------- Hero ---------- */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding-top:110px;padding-bottom:60px}
.hero-badge{display:inline-flex;align-items:center;gap:10px;padding:8px 14px;border:1px solid var(--line);border-radius:100px;background:var(--glass);font-family:var(--f-mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);width:fit-content}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 12px var(--accent-2);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{margin:26px 0 0}
.hero-sub{margin-top:30px;display:flex;gap:40px;flex-wrap:wrap;align-items:flex-start}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:38px}
.hero-facts{display:flex;gap:clamp(24px,4vw,60px);flex-wrap:wrap;margin-top:64px;padding-top:34px;border-top:1px solid var(--line)}
.fact .k{font-family:var(--f-display);font-weight:800;font-size:clamp(26px,3vw,40px);color:var(--ink);letter-spacing:-.02em}
.fact .l{font-size:13px;color:var(--muted);margin-top:4px;max-width:22ch}

/* ---------- Marquee / logos ---------- */
.marquee{overflow:hidden;-webkit-mask:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee-track{display:flex;gap:60px;width:max-content;animation:scrollx 34s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes scrollx{to{transform:translateX(-50%)}}
.logo-item{font-family:var(--f-display);font-weight:700;font-size:22px;color:var(--faint);letter-spacing:-.01em;white-space:nowrap;transition:color .3s;opacity:.8}
.logo-item:hover{color:var(--ink-2)}

/* ---------- Editorial rows (services) ---------- */
.rows{border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:80px 1.1fr 1.3fr 150px;gap:30px;align-items:center;
  padding:clamp(26px,3.4vw,44px) 0;border-bottom:1px solid var(--line);position:relative;transition:background .5s}
.row::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(91,140,255,.06),transparent 60%);opacity:0;transition:opacity .5s}
.row:hover::before{opacity:1}
.row-num{font-family:var(--f-mono);font-size:13px;color:var(--faint)}
.row h3{font-size:clamp(24px,2.6vw,36px)}
.row .row-desc{color:var(--muted);font-size:15px;max-width:46ch}
.row .row-meta{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);text-align:right}
.row .arrow{position:absolute;right:0;top:50%;transform:translate(10px,-50%);opacity:0;transition:.45s var(--ease);color:var(--ink)}
.row:hover .arrow{opacity:1;transform:translate(0,-50%)}
.row:hover h3{color:#fff}

/* ---------- Bento (AI) ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.cell{grid-column:span 2;background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-lg);
  padding:28px;position:relative;overflow:hidden;transition:transform .5s var(--ease),border-color .5s,background .5s;min-height:210px}
.cell::after{content:"";position:absolute;left:0;top:0;height:2px;width:100%;background:var(--grad);transform:scaleX(0);transform-origin:0;transition:transform .5s var(--ease)}
.cell:hover{transform:translateY(-5px);border-color:rgba(255,255,255,.2);background:var(--glass-2)}
.cell:hover::after{transform:scaleX(1)}
.cell .ci{width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:var(--surface-2);border:1px solid var(--line);color:var(--accent);margin-bottom:20px}
.cell .ci svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.cell h3{font-size:19px;font-family:var(--f-body);font-weight:700;margin-bottom:8px;color:var(--ink)}
.cell p{font-size:14px;color:var(--muted);line-height:1.55}
.cell.wide{grid-column:span 3}
.cell.tall{grid-column:span 3;min-height:300px}
.cell.feature{grid-column:span 6;min-height:auto}

/* ---------- Product mockup window ---------- */
.window{border:1px solid var(--glass-line);border-radius:var(--r-lg);overflow:hidden;background:var(--surface);
  box-shadow:0 40px 120px -40px rgba(0,0,0,.8);transform-style:preserve-3d;position:relative;transition:transform .5s var(--ease-expo)}
.window.tilting{transition:none}
.window .glare{position:absolute;inset:0;z-index:5;pointer-events:none;opacity:0;mix-blend-mode:screen;
  background:radial-gradient(340px circle at var(--gx,50%) var(--gy,0%),rgba(255,255,255,.18),transparent 60%);transition:opacity .4s}
.window:hover .glare{opacity:1}
.win-bar{display:flex;align-items:center;gap:8px;padding:13px 16px;border-bottom:1px solid var(--line);background:var(--bg-2);overflow:hidden}
.win-bar .d{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.14);flex:none}
.win-bar .d.a{background:var(--accent-2);box-shadow:0 0 10px var(--accent-2)}
.win-bar .t{margin-left:12px;font-family:var(--f-mono);font-size:11.5px;color:var(--muted);letter-spacing:.04em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;flex:1}
.win-body{padding:0}
.win-body svg{width:100%;height:auto;display:block}

/* ---------- Cases ---------- */
.case{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,64px);align-items:center;padding-block:clamp(40px,6vw,90px);border-bottom:1px solid var(--line)}
.case:nth-child(even) .case-media{order:2}
.case-tag{font-family:var(--f-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2)}
.case h3{font-size:clamp(26px,3vw,42px);margin:16px 0 14px}
.case p{color:var(--muted);max-width:44ch}
.case-metrics{display:flex;gap:38px;margin-top:30px;flex-wrap:wrap}
.case-metrics .k{font-family:var(--f-display);font-weight:800;font-size:clamp(24px,2.6vw,34px);color:var(--ink)}
.case-metrics .k .grad-ink{font-weight:800}
.case-metrics .l{font-size:12px;color:var(--muted);margin-top:3px}

/* ---------- Process ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line)}
.step{padding:34px 24px 34px 0;border-right:1px solid var(--line);position:relative}
.step:last-child{border-right:0}
.step .sn{font-family:var(--f-mono);font-size:12px;color:var(--accent);margin-bottom:20px}
.step .bar{height:2px;background:var(--line);margin-bottom:20px;overflow:hidden}
.step .bar i{display:block;height:100%;width:0;background:var(--grad);transition:width 1s var(--ease)}
.step.in .bar i{width:100%}
.step h3{font-family:var(--f-body);font-weight:700;font-size:19px;margin-bottom:10px}
.step p{font-size:14px;color:var(--muted)}

/* ---------- Metrics band ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{padding:34px 0;border-top:1px solid var(--line)}
.metric .k{font-family:var(--f-display);font-weight:800;font-size:clamp(40px,5.5vw,76px);letter-spacing:-.03em;line-height:1;color:var(--ink)}
.metric .l{margin-top:14px;color:var(--muted);font-size:14px;max-width:24ch}

/* ---------- Testimonials ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote{background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-lg);padding:30px;display:flex;flex-direction:column;gap:22px;transition:border-color .4s,transform .4s}
.quote:hover{border-color:rgba(255,255,255,.18);transform:translateY(-4px)}
.quote p{color:var(--ink-2);font-size:16px;line-height:1.6;flex:1}
.quote .who{display:flex;align-items:center;gap:12px}
.quote .av{width:40px;height:40px;border-radius:50%;background:var(--grad);flex:none;display:flex;align-items:center;justify-content:center;font-family:var(--f-display);font-weight:700;font-size:13px;color:#05060a;letter-spacing:.02em}
.quote .who .n{font-weight:600;color:var(--ink);font-size:14px}
.quote .who .r{font-size:12px;color:var(--muted)}
.quote .qm{font-family:var(--f-display);font-size:40px;line-height:0;color:var(--accent);opacity:.5;height:20px}

/* ---------- Engagement / pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.plan{border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;background:var(--soft);display:flex;flex-direction:column;gap:18px;transition:border-color .4s,transform .4s,background .4s;position:relative;overflow:hidden}
.plan.feat{border-color:transparent;background:linear-gradient(180deg,rgba(91,140,255,.10),var(--surface))}
.plan.feat::before{content:"";position:absolute;inset:0;padding:1px;border-radius:inherit;background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:.6}
.plan:hover{transform:translateY(-5px)}
.plan .pn{font-family:var(--f-display);font-weight:700;font-size:22px;color:var(--ink)}
.plan .pm{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2)}
.plan .pd{color:var(--muted);font-size:14px}
.plan ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;margin-top:auto}
.plan li{display:flex;gap:10px;font-size:14px;color:var(--ink-2)}
.plan li::before{content:"";width:16px;height:16px;flex:none;margin-top:3px;border-radius:50%;background:var(--surface-2);border:1px solid var(--line);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2337E6C8' stroke-width='2'%3E%3Cpath d='M4 8.5 7 11l5-6'/%3E%3C/svg%3E")}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);max-width:900px}
.qa{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:26px 0;font-family:var(--f-display);font-weight:600;font-size:clamp(17px,2vw,22px);color:var(--ink);letter-spacing:-.01em}
.qa summary::-webkit-details-marker{display:none}
.qa summary .pm{width:34px;height:34px;flex:none;border:1px solid var(--line);border-radius:50%;position:relative;transition:.4s var(--ease)}
.qa summary .pm::before,.qa summary .pm::after{content:"";position:absolute;left:50%;top:50%;width:13px;height:1.5px;background:var(--ink);transform:translate(-50%,-50%);transition:.4s var(--ease)}
.qa summary .pm::after{transform:translate(-50%,-50%) rotate(90deg)}
.qa[open] summary .pm{background:var(--grad);border-color:transparent;transform:rotate(180deg)}
.qa[open] summary .pm::after{opacity:0}
.qa .a{padding:0 0 26px;color:var(--muted);max-width:70ch;font-size:15px}

/* ---------- Final CTA ---------- */
.cta-final{text-align:center;padding-block:clamp(80px,12vw,170px);position:relative;overflow:hidden}
.cta-final .glowbg{position:absolute;left:50%;top:40%;transform:translate(-50%,-50%);width:min(900px,90vw);height:600px;background:var(--glow);pointer-events:none;filter:blur(20px)}
.cta-final h2{margin-bottom:26px}
.cta-final .actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:12px}

/* contact form */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:560px;margin:34px auto 0;text-align:left}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:span 2}
.field label{font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.field input,.field textarea{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;color:var(--ink);font:inherit;font-size:16px;transition:border-color .3s,background .3s}
.field input:focus-visible,.field textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);background:var(--surface-2)}
.field textarea{resize:vertical;min-height:100px}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);padding-block:70px 40px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.foot-brand .brand{margin-bottom:18px}
.foot-brand p{color:var(--muted);font-size:14px;max-width:34ch}
.foot-col h3,.foot-col h4{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin:0 0 18px}
.foot-col a{display:block;color:var(--ink-2);font-size:14px;padding:6px 0;transition:color .3s}
.foot-col a:hover{color:var(--ink)}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:60px;padding-top:26px;border-top:1px solid var(--line);color:var(--faint);font-size:13px;flex-wrap:wrap}

/* ---------- SVG product mockups ---------- */
.mk{display:block;width:100%;height:auto;font-family:var(--f-mono)}
.mk .sans{font-family:var(--f-body)}
.mk text{fill:#8791A3}
.mk .lbl{fill:#5E6878;font-size:11px;letter-spacing:.04em}
.mk .val{fill:#EDF0F6}
.mk .dim{fill:#5A6478}
.mk .acc{fill:#37E6C8}
.mk .accb{fill:#6FA8FF}
.mk .big{font-family:var(--f-body);fill:#F2F4F8;font-weight:500}
.mk .grid{stroke:#171B24;stroke-width:1}
.mk .hair{stroke:#232833;stroke-width:1}
.mk .card{fill:#0F131B;stroke:#1E2430;stroke-width:1}
.mk .node{fill:#0E1320;stroke:#273041;stroke-width:1}
.mk .flow{stroke:#2A3547;stroke-width:1.5;fill:none}
.mk .flow-a{stroke:#37E6C8;stroke-width:1.5;fill:none;stroke-dasharray:4 5;filter:drop-shadow(0 0 4px rgba(55,230,200,.5))}
.mk .pill{fill:rgba(55,230,200,.12);stroke:#37E6C8;stroke-width:1}
.mk .pill-g{fill:none;stroke:#2A3140;stroke-width:1}
.mk .line-a{stroke:#37E6C8;stroke-width:2;fill:none;filter:drop-shadow(0 3px 10px rgba(55,230,200,.35))}
.mk .prompt{fill:#37E6C8}
.mk .glow-dot{fill:#37E6C8;filter:drop-shadow(0 0 6px #37E6C8)}

/* ---------- Chat copilot mockup ---------- */
.chat{display:flex;flex-direction:column;gap:16px;font-size:14px}
.chat .msg{max-width:88%}
.chat .msg.op{align-self:flex-end;text-align:right}
.chat .who{font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;color:var(--muted);display:block;margin-bottom:5px}
.chat .who.acc{color:var(--accent-2)}
.chat .msg p{margin:0;padding:12px 15px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink-2);line-height:1.5;display:inline-block;text-align:left}
.chat .msg.as p{border-color:rgba(55,230,200,.22)}
.chat .sys{font-family:var(--f-mono);font-size:11px;color:var(--faint);padding-left:2px;border-top:1px solid var(--line-2);padding-top:12px}

/* ---------- Terminal mockup ---------- */
.term{font-family:var(--f-mono);font-size:12.5px;line-height:1.85;color:var(--muted);min-height:300px}
.term .tl{white-space:pre-wrap;word-break:break-word}
.term .tl.cmd{color:var(--ink-2)}
.term .tl.cmd::first-letter{color:var(--accent-2)}
.term .tl.ok{color:var(--accent-2)}
.term-metrics{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.term-metrics>div{display:flex;flex-direction:column;gap:3px}
.tm-l{font-family:var(--f-mono);font-size:11px;color:var(--faint);text-transform:lowercase}
.tm-v{font-family:var(--f-mono);font-weight:600;font-size:15px;color:var(--ink)}
.tm-v.acc{color:var(--accent-2)}

/* ---------- Case media thumb ---------- */
.case-body{min-width:0}
.case-thumb{position:relative;border:1px solid var(--glass-line);border-radius:var(--r-lg);background:linear-gradient(180deg,var(--surface-2),var(--surface));padding:28px;overflow:hidden;min-height:280px;display:flex;flex-direction:column;justify-content:flex-end}
.case-thumb::before{content:"";position:absolute;inset:0;background:radial-gradient(120% 80% at 80% 0%,rgba(91,140,255,.14),transparent 60%);pointer-events:none}
.ct-mono{position:absolute;top:22px;left:24px;font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;color:var(--muted)}
.ct-mono::before{content:"● ";color:var(--accent-2)}
.ct-big{font-family:var(--f-display);font-weight:800;font-size:clamp(40px,6vw,68px);letter-spacing:-.03em;line-height:1}
.ct-sub{font-family:var(--f-mono);font-size:12px;color:var(--muted);margin-top:8px}
.ct-bars{display:flex;align-items:flex-end;gap:8px;height:70px;margin-top:22px}
.ct-bars i{flex:1;height:var(--h);background:linear-gradient(180deg,rgba(55,230,200,.7),rgba(91,140,255,.15));border-radius:4px 4px 0 0;transform-origin:bottom;animation:barin .9s var(--ease-expo) backwards}
.ct-bars i:nth-child(2){animation-delay:.06s}.ct-bars i:nth-child(3){animation-delay:.12s}.ct-bars i:nth-child(4){animation-delay:.18s}.ct-bars i:nth-child(5){animation-delay:.24s}.ct-bars i:nth-child(6){animation-delay:.3s}
@keyframes barin{from{transform:scaleY(0)}}

/* ============================================================
   Multi-page: work index, case article, lab, about, contact
   ============================================================ */

.page-top{padding-top:clamp(120px,14vh,170px)}
.crumbs{display:flex;gap:10px;align-items:center;font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:26px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--ink)}
.crumbs span{opacity:.5}

/* category filter nav */
.cat-nav{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 40px;padding-bottom:26px;border-bottom:1px solid var(--line)}
.cat-nav a{padding:9px 16px;border:1px solid var(--line);border-radius:100px;font-size:13px;color:var(--ink-2);transition:.3s var(--ease)}
.cat-nav a:hover{border-color:rgba(255,255,255,.28);color:var(--ink)}
.cat-nav a.on{background:var(--ink);color:#05060a;border-color:transparent;font-weight:600}

/* group heading */
.group-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin:70px 0 26px;flex-wrap:wrap;scroll-margin-top:94px}
.group-head h2{font-family:var(--f-display);font-weight:700;font-size:clamp(22px,2.4vw,30px);letter-spacing:-.02em;color:var(--ink);text-wrap:balance}
.group-head .blurb{color:var(--muted);font-size:14px;max-width:52ch}

/* work grid */
.work-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.work-card{position:relative;display:flex;flex-direction:column;gap:14px;padding:30px;border:1px solid var(--glass-line);border-radius:var(--r-lg);background:var(--glass);overflow:hidden;transition:transform .5s var(--ease),border-color .5s,background .5s}
.work-card::after{content:"";position:absolute;left:0;top:0;height:2px;width:100%;background:var(--grad);transform:scaleX(0);transform-origin:0;transition:transform .5s var(--ease)}
.work-card:hover{transform:translateY(-5px);border-color:rgba(255,255,255,.2);background:var(--glass-2)}
.work-card:hover::after{transform:scaleX(1)}
.work-card .wc-top{display:flex;justify-content:space-between;gap:14px;align-items:center}
.work-card .wc-cat{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2)}
.work-card .wc-year{font-family:var(--f-mono);font-size:11px;color:var(--faint)}
.work-card h3{font-size:clamp(19px,1.8vw,24px);font-family:var(--f-display);font-weight:700;text-wrap:balance}
.work-card p{color:var(--muted);font-size:14.5px;line-height:1.55;flex:1;display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden}
.work-card .wc-mono{font-family:var(--f-mono);font-size:11px;color:var(--faint);letter-spacing:.04em}
.work-card .wc-go{display:flex;align-items:center;gap:8px;color:var(--ink);font-size:13.5px;font-weight:600}
.work-card .wc-go i{font-style:normal;transition:transform .4s var(--ease-back)}
.work-card:hover .wc-go i{transform:translateX(4px)}

/* lab cards */
.lab-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.lab-card{border:1px solid var(--line);border-radius:var(--r);background:var(--soft);padding:24px;display:flex;flex-direction:column;gap:12px;transition:border-color .4s,transform .4s}
.lab-card:hover{border-color:rgba(255,255,255,.18);transform:translateY(-3px)}
.lab-card h3{font-family:var(--f-body);font-weight:700;font-size:17px}
.lab-card p{font-size:13.5px;color:var(--muted);line-height:1.55}
.lab-card .lc-facts{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:6px}
.lab-card .lc-facts span{font-family:var(--f-mono);font-size:11px;color:var(--accent-2);border:1px solid rgba(55,230,200,.25);border-radius:6px;padding:3px 7px}

/* ---------- Case article ---------- */
.art-hero{max-width:900px}
.art-hero .art-tag{font-family:var(--f-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2)}
.art-hero h1{font-family:var(--f-display);font-weight:800;letter-spacing:-.03em;line-height:1.02;font-size:clamp(26px,4.6vw,62px);color:var(--ink);margin:20px 0 0;text-wrap:balance;-webkit-hyphens:auto;hyphens:auto;hyphenate-limit-chars:12 4 4}
.art-hero .art-lead{font-size:clamp(17px,1.5vw,21px);color:var(--ink-2);line-height:1.55;margin-top:24px;max-width:62ch;text-wrap:pretty}

.art-meta{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:52px 0;padding:30px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.art-meta .am-l{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:9px}
.art-meta .am-v{color:var(--ink);font-size:15px;font-weight:600}

/* metrics strip — placeholders are visibly slots */
.metrics-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:0 0 60px}
.ms{border:1px solid var(--line);border-radius:var(--r);padding:24px;background:var(--soft)}
.ms .k{font-family:var(--f-display);font-weight:800;font-size:clamp(26px,3vw,40px);letter-spacing:-.02em;line-height:1;color:var(--ink)}
.ms .k.slot{color:var(--faint);border-bottom:2px dashed rgba(255,255,255,.16);display:inline-block;padding-bottom:2px}
.ms .l{margin-top:12px;color:var(--ink-2);font-size:13.5px;font-weight:600}
.ms .n{margin-top:5px;color:var(--muted);font-size:12.5px;line-height:1.45}

.slot-note{display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border:1px dashed rgba(255,255,255,.16);border-radius:var(--r);background:rgba(255,255,255,.02);color:var(--muted);font-size:13px;margin-bottom:60px}
.slot-note b{color:var(--ink-2);font-weight:600}

/* prose */
.art-body{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:clamp(30px,5vw,80px);align-items:start}
.prose{max-width:70ch;min-width:0}
.prose h2{font-family:var(--f-display);font-weight:700;font-size:clamp(23px,2.5vw,32px);letter-spacing:-.02em;color:var(--ink);margin:56px 0 20px;line-height:1.15;text-wrap:balance}
.prose h2:first-child{margin-top:0}
.prose p{color:var(--ink-2);font-size:16.5px;line-height:1.72;margin:0 0 18px;text-wrap:pretty}
.prose p:last-child{margin-bottom:0}

.build-list{list-style:none;margin:30px 0 0;padding:0;display:flex;flex-direction:column;gap:2px;counter-reset:b}
.build-list li{display:grid;grid-template-columns:52px 1fr;gap:18px;padding:22px 0;border-top:1px solid var(--line)}
.build-list li:last-child{border-bottom:1px solid var(--line)}
.build-list li::before{counter-increment:b;content:"0" counter(b);font-family:var(--f-mono);font-size:12px;color:var(--faint)}
.build-list h4{margin:0 0 6px;font-family:var(--f-body);font-weight:700;font-size:16.5px;color:var(--ink)}
.build-list p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.6}

.chal{border-left:2px solid var(--accent);padding:4px 0 4px 20px;margin:26px 0}
.chal h4{margin:0 0 8px;font-family:var(--f-body);font-weight:700;font-size:16px;color:var(--ink)}
.chal p{margin:0;color:var(--muted);font-size:15px;line-height:1.65}

/* sidebar */
.art-side{position:sticky;top:100px;display:flex;flex-direction:column;gap:26px}
.side-box{border:1px solid var(--line);border-radius:var(--r);padding:22px;background:var(--soft)}
.side-box h3,.side-box h4{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin:0 0 14px}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chips span{font-family:var(--f-mono);font-size:11.5px;color:var(--ink-2);border:1px solid var(--line);border-radius:7px;padding:5px 9px;background:var(--surface)}
.side-box ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.side-box li{font-size:13.5px;color:var(--muted);display:flex;gap:9px;line-height:1.5}
.side-box li::before{content:"→";color:var(--accent-2);flex:none}
.side-status{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-mono);font-size:12px;color:var(--accent-2)}
.side-status::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 10px var(--accent-2)}

/* prev/next */
.art-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:90px;padding-top:36px;border-top:1px solid var(--line)}
.art-nav a{padding:24px;border:1px solid var(--line);border-radius:var(--r);transition:border-color .4s,transform .4s}
.art-nav a:hover{border-color:rgba(255,255,255,.24);transform:translateY(-3px)}
.art-nav .an-l{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.art-nav .an-t{color:var(--ink);font-weight:600;font-size:16px}
.art-nav .next{text-align:right}

@media (max-width:1080px){
  .art-body{grid-template-columns:1fr}
  .art-side{position:static;flex-direction:row;flex-wrap:wrap}
  .art-side .side-box{flex:1;min-width:240px}
  .metrics-strip{grid-template-columns:repeat(2,1fr)}
  .art-meta{grid-template-columns:repeat(2,1fr)}
  .lab-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  .work-grid{grid-template-columns:1fr}
  .lab-grid{grid-template-columns:1fr}
  .art-nav{grid-template-columns:1fr}
  .art-nav .next{text-align:left}
}
@media (max-width:520px){
  .metrics-strip,.art-meta{grid-template-columns:1fr}
  .build-list li{grid-template-columns:36px 1fr;gap:12px}
}

/* ---------- Reveal system ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease-expo),transform .9s var(--ease-expo);transition-delay:calc(var(--i,0)*80ms)}
.rv.in{opacity:1;transform:none}
.line-mask{overflow:hidden;display:block;padding-bottom:.14em;margin-bottom:-.14em}
.line-mask>span{display:block;transform:translateY(115%);transition:transform 1s var(--ease-expo);transition-delay:calc(var(--i,0)*90ms)}
.line-mask.in>span{transform:none}

@media (prefers-reduced-motion:reduce){
  .rv,.line-mask>span{opacity:1!important;transform:none!important;filter:none!important}
  .hl::after{animation:none;transform:scaleX(1)}
  .grain{animation:none}
  *{animation-duration:.001ms!important;transition-duration:.12s!important}
}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .bento{grid-template-columns:repeat(4,1fr)}
  .cell{grid-column:span 2}
  .cell.wide,.cell.tall{grid-column:span 4}
  .cell.feature{grid-column:span 4}
  .steps{grid-template-columns:repeat(1,1fr)}
  .step{border-right:0;border-bottom:1px solid var(--line);padding-right:0}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .quotes{grid-template-columns:1fr}
  .plans{grid-template-columns:1fr}
}
@media (max-width:820px){
  .split,.duo,.faq-grid{grid-template-columns:1fr;gap:32px}
  .qa summary{font-family:var(--f-body);font-weight:600}
  .nav-links,.nav-cta .btn{display:none}
  .burger{display:flex}
  .row{grid-template-columns:44px 1fr;gap:14px 16px}
  .row .row-desc{grid-column:2}
  .row .row-meta{grid-column:2;text-align:left}
  .row .arrow{display:none}
  .case{grid-template-columns:1fr}
  .case:nth-child(even) .case-media{order:0}
  .bento{grid-template-columns:1fr 1fr}
  .cell,.cell.wide,.cell.tall,.cell.feature{grid-column:span 2}
  .contact{grid-template-columns:1fr}
  .field.full{grid-column:span 1}
  .foot-grid{grid-template-columns:1fr 1fr}
  .metrics{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .foot-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr}
  .cell,.cell.wide,.cell.tall,.cell.feature{grid-column:span 1;min-height:auto}
  .term-metrics{grid-template-columns:repeat(2,1fr);gap:12px}
  .tm-v{font-size:14px}
  .hero-facts{gap:20px}
  h1.display{font-size:clamp(23px,7vw,44px);overflow-wrap:break-word}
  .hero{min-height:auto;padding-top:130px}
  .hero-facts{margin-top:44px}
  .foot-col a{padding:9px 0}
  .display br,.hero h1 br{display:none}
}