/* ============================================================
   EdgeAIIndia.com — Design System
   Palette: deep charcoal · cyan/teal · cool electric blue · white
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  --bg-0:#07090d;
  --bg-1:#0b0f14;
  --bg-2:#0e141b;
  --card:#10161d;
  --card-2:#141b24;
  --line:rgba(56,189,248,.13);
  --line-2:rgba(56,189,248,.28);
  --cyan:#22d3ee;
  --teal:#2dd4bf;
  --blue:#4d9fff;
  --cyan-soft:rgba(34,211,238,.14);
  --blue-soft:rgba(77,159,255,.12);
  --text:#f2f6fa;
  --muted:#9aa8b6;
  --dim:#64748b;
  --glow:0 0 0 1px rgba(34,211,238,.25), 0 12px 40px -12px rgba(34,211,238,.35);
  --radius:16px;
  --radius-sm:10px;
  --font-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-display:"Archivo",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,"Cascadia Mono",Consolas,monospace;
  --container:1180px;
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html:focus-within{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.18;margin:0 0 .6em;letter-spacing:-.015em}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
svg{font-family:var(--font-body)}
::selection{background:rgba(34,211,238,.32);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

.skip-link{
  position:absolute;left:16px;top:-48px;z-index:200;
  background:var(--cyan);color:#03151a;font-weight:600;
  padding:10px 18px;border-radius:8px;transition:top .2s;
}
.skip-link:focus{top:16px}

/* ---------- Layout ---------- */
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{position:relative;padding:104px 0}
.section--alt{background:linear-gradient(180deg,var(--bg-1),var(--bg-0))}
.section--line{border-top:1px solid var(--line)}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-5{grid-template-columns:repeat(5,1fr)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}

/* Section headers */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--cyan);margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,var(--cyan))}
.eyebrow--center::after{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.section-title{font-size:clamp(1.85rem,3.2vw,2.65rem);font-weight:700;max-width:760px}
.section-title--center{margin-left:auto;margin-right:auto;text-align:center}
.lead{color:var(--muted);font-size:1.06rem;max-width:680px}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.section-head{margin-bottom:56px}
.mt-24{margin-top:24px}.mt-40{margin-top:40px}.mt-56{margin-top:56px}

/* Decorative backgrounds */
.gridlines{position:relative}
.gridlines::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 0%,#000 30%,transparent 75%);
          mask-image:radial-gradient(ellipse 70% 60% at 50% 0%,#000 30%,transparent 75%);
}
.orb{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0}
.orb--cyan{background:rgba(34,211,238,.13)}
.orb--blue{background:rgba(77,159,255,.12)}
.section > .container{position:relative;z-index:1}

/* ---------- Typography helpers ---------- */
.mono{font-family:var(--font-mono)}
.cyan{color:var(--cyan)}
.grad-text{
  background:linear-gradient(92deg,var(--cyan) 0%,var(--blue) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;border-radius:12px;font-weight:600;font-size:.95rem;
  border:1px solid transparent;transition:.22s ease;white-space:nowrap;
}
.btn--sm{padding:10px 18px;font-size:.88rem;border-radius:10px}
.btn--primary{
  background:linear-gradient(92deg,var(--cyan),var(--blue));color:#041018;
  box-shadow:0 8px 28px -10px rgba(34,211,238,.55);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px -10px rgba(34,211,238,.7)}
.btn--ghost{border-color:var(--line-2);color:var(--text);background:rgba(34,211,238,.04)}
.btn--ghost:hover{border-color:var(--cyan);background:rgba(34,211,238,.1);transform:translateY(-2px)}
.btn--outline-warm{border-color:rgba(242,246,250,.25);color:var(--text)}
.btn--outline-warm:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-row{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;color:var(--cyan);
  font-weight:600;font-size:.92rem;
}
.link-arrow::after{content:"→";transition:transform .2s}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- Chips / badges ---------- */
.chip{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line-2);border-radius:999px;
  padding:8px 16px;font-size:.85rem;color:var(--muted);
  background:rgba(16,22,29,.7);transition:.2s;
}
.chip:hover{color:var(--text);border-color:var(--cyan)}
.chip-row{display:flex;flex-wrap:wrap;gap:12px}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--cyan);
  border:1px solid var(--line-2);border-radius:999px;padding:7px 14px;
  background:linear-gradient(180deg,rgba(34,211,238,.08),rgba(34,211,238,.02));
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- Cards ---------- */
.card{
  position:relative;background:linear-gradient(180deg,var(--card-2),var(--card));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;transition:.25s ease;overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.5),transparent);
  opacity:0;transition:.25s;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 20px 44px -20px rgba(0,0,0,.6)}
.card:hover::before{opacity:1}
.card h3{font-size:1.14rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.94rem;margin:0}
.card .icon{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(160deg,var(--cyan-soft),var(--blue-soft));
  border:1px solid var(--line-2);margin-bottom:18px;color:var(--cyan);
}
.card .icon svg{width:22px;height:22px}
.card__link{position:absolute;inset:0;z-index:1}
.card--hoverable:hover h3{color:var(--cyan)}

/* Product / platform cards */
.product-card{display:flex;flex-direction:column;padding:0}
.product-card .photo{border-radius:var(--radius) var(--radius) 0 0}
.product-card .product-body{padding:26px;display:flex;flex-direction:column;flex:1;gap:14px}
.product-card h3{margin:0}
.product-specs{
  display:grid;gap:0;margin:4px 0 8px;border:1px solid var(--line);
  border-radius:var(--radius-sm);overflow:hidden;
}
.product-specs div{
  display:flex;justify-content:space-between;gap:14px;
  padding:9px 14px;font-size:.83rem;border-top:1px solid var(--line);
}
.product-specs div:first-child{border-top:0}
.product-specs dt{color:var(--dim);font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;padding-top:3px}
.product-specs dd{margin:0;color:var(--text);text-align:right}
.product-card .btn{margin-top:auto;align-self:flex-start}

/* Photo treatment — unifies all photography into brand palette */
.photo{position:relative;overflow:hidden;background:#0a1016;border-radius:var(--radius)}
.photo img{width:100%;height:100%;object-fit:cover;filter:grayscale(.3) saturate(.92) brightness(.9) contrast(1.03)}
.photo::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(165deg,rgba(34,211,238,.14) 0%,rgba(77,159,255,.08) 45%,rgba(7,9,13,.55) 100%);
}
.photo--duo img{filter:grayscale(.88) brightness(.82) contrast(1.06)}
.photo--duo::after{background:linear-gradient(165deg,rgba(34,211,238,.22) 0%,rgba(77,159,255,.16) 50%,rgba(7,9,13,.6) 100%)}
.photo--banner{height:340px}
.photo--banner img{height:100%}
.photo--flush{border-radius:var(--radius) var(--radius) 0 0}
.photo__tag{
  position:absolute;left:14px;bottom:14px;z-index:2;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(7,9,13,.78);border:1px solid var(--line-2);
  padding:6px 12px;border-radius:999px;backdrop-filter:blur(6px);
}

/* ---------- Navbar ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(7,9,13,.55);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:.25s;
}
.nav.is-scrolled{background:rgba(7,9,13,.88);border-bottom-color:var(--line)}
.nav__inner{display:flex;align-items:center;gap:28px;height:74px}
.brand{display:inline-flex;align-items:center;gap:11px;font-family:var(--font-display);font-weight:700;font-size:1.12rem;letter-spacing:-.01em}
.brand b{color:var(--cyan);font-weight:700}
.brand svg{width:30px;height:30px;flex:none}
.nav__links{display:flex;gap:4px;margin-left:auto}
.nav__links a{
  padding:9px 12px;border-radius:9px;font-size:.9rem;color:var(--muted);
  transition:.18s;position:relative;white-space:nowrap;
}
.nav__links a:hover{color:var(--text);background:rgba(34,211,238,.07)}
.nav__links a[aria-current="page"]{color:var(--cyan);background:rgba(34,211,238,.09)}
.nav__cta{flex:none}
.nav__toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--line-2);
  border-radius:10px;width:44px;height:40px;position:relative;z-index:2;
}
.nav__toggle span,.nav__toggle span::before,.nav__toggle span::after{
  content:"";position:absolute;left:11px;right:11px;height:2px;background:var(--text);border-radius:2px;transition:.25s;
}
.nav__toggle span{top:19px}
.nav__toggle span::before{left:0;right:0;top:-7px}
.nav__toggle span::after{left:0;right:0;top:7px}
.nav__toggle[aria-expanded="true"] span{background:transparent}
.nav__toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav__toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
.nav__mobile{display:none}
.nav__mobile.is-open{display:block;border-top:1px solid var(--line);background:rgba(7,9,13,.97);padding:18px 24px 26px}
.nav__mobile a{
  display:block;padding:13px 6px;border-bottom:1px solid rgba(56,189,248,.08);
  color:var(--muted);font-size:1rem;
}
.nav__mobile a[aria-current="page"]{color:var(--cyan)}
.nav__mobile .btn{margin-top:18px;width:100%}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:172px 0 96px;
  background:
    radial-gradient(ellipse 60% 45% at 78% 30%,rgba(34,211,238,.09),transparent 65%),
    radial-gradient(ellipse 50% 40% at 12% 70%,rgba(77,159,255,.07),transparent 60%),
    linear-gradient(180deg,#0a0e13 0%,var(--bg-0) 100%);
}
.hero .container{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.3rem,4.2vw,3.5rem);font-weight:700;margin:22px 0 20px}
.hero__sub{color:var(--muted);font-size:1.13rem;max-width:540px;margin-bottom:30px}
.hero__tagline{
  display:inline-flex;flex-wrap:wrap;gap:10px 22px;align-items:center;
  margin-top:34px;padding:14px 20px;border:1px solid var(--line);border-radius:14px;
  background:rgba(16,22,29,.55);backdrop-filter:blur(6px);
  font-family:var(--font-mono);font-size:.8rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);
}
.hero__tagline strong{color:var(--cyan);font-weight:600}
.hero__visual{position:relative}
.hero__visual svg{width:100%;height:auto;display:block}
.flowline{stroke-dasharray:5 9;animation:dashmove 2.8s linear infinite}
@keyframes dashmove{to{stroke-dashoffset:-56}}
.hero__proofbar{
  display:flex;flex-wrap:wrap;gap:0;margin-top:74px;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
  background:rgba(11,15,20,.6);backdrop-filter:blur(8px);
}
.hero__proofbar div{
  flex:1 1 200px;padding:16px 22px;border-left:1px solid var(--line);
  font-size:.82rem;color:var(--muted);display:flex;align-items:center;gap:10px;
}
.hero__proofbar div:first-child{border-left:0}
.hero__proofbar .mono{color:var(--cyan);font-size:.68rem;letter-spacing:.14em}

/* ---------- Flow diagrams ---------- */
.flow{display:flex;align-items:stretch;gap:0;flex-wrap:wrap;justify-content:center}
.flow-step{
  flex:1 1 170px;max-width:250px;
  background:linear-gradient(180deg,var(--card-2),var(--card));
  border:1px solid var(--line);border-radius:14px;padding:18px 18px;
  text-align:center;position:relative;
}
.flow-step .fs-icon{
  width:40px;height:40px;margin:0 auto 10px;border-radius:10px;
  display:grid;place-items:center;color:var(--cyan);
  background:rgba(34,211,238,.08);border:1px solid var(--line-2);
}
.flow-step .fs-icon svg{width:20px;height:20px}
.flow-step h4{font-size:.95rem;margin:0 0 4px}
.flow-step p{font-size:.8rem;color:var(--dim);margin:0}
.flow-step--final{border-color:rgba(34,211,238,.4);box-shadow:0 0 24px -6px rgba(34,211,238,.28)}
.flow-arrow{
  align-self:center;flex:none;width:46px;text-align:center;color:var(--cyan);
  font-size:1.15rem;position:relative;top:-2px;opacity:.85;
}
.flow-step--optional{border-style:dashed;border-color:rgba(154,168,182,.3);background:transparent}
.flow-step--optional h4{color:var(--muted)}
.flow-note{
  margin-top:18px;text-align:center;font-size:.82rem;color:var(--dim);
}
.flow-note .chip{font-size:.72rem;padding:5px 12px}

/* ---------- Architecture stack / layers ---------- */
.arch{display:flex;flex-direction:column;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.arch__layer{
  display:grid;grid-template-columns:190px 1fr;gap:18px;align-items:center;
  padding:20px 24px;border-top:1px solid var(--line);background:var(--card);
}
.arch__layer:first-child{border-top:0}
.arch__layer:nth-child(odd){background:var(--card-2)}
.arch__layer h4{
  margin:0;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--cyan);
}
.arch__layer ul{display:flex;flex-wrap:wrap;gap:8px}
.arch__layer li{
  font-size:.84rem;color:var(--muted);border:1px solid var(--line);
  border-radius:8px;padding:5px 12px;background:rgba(7,9,13,.5);
}
.arch__layer--hw{background:linear-gradient(90deg,rgba(34,211,238,.07),rgba(77,159,255,.05))}

/* Vertical architecture (Employees → … ) */
.vflow{display:flex;flex-direction:column;align-items:center;gap:0}
.vflow__node{
  width:min(420px,100%);text-align:center;
  border:1px solid var(--line-2);border-radius:12px;padding:13px 18px;
  background:linear-gradient(180deg,var(--card-2),var(--card));
}
.vflow__node h4{margin:0;font-size:.98rem}
.vflow__node p{margin:2px 0 0;font-size:.8rem;color:var(--dim)}
.vflow__node--accent{border-color:rgba(34,211,238,.45);box-shadow:0 0 26px -8px rgba(34,211,238,.3)}
.vflow__arrow{color:var(--cyan);font-size:1.05rem;padding:6px 0;opacity:.8;line-height:1}
.vflow__split{
  width:min(420px,100%);display:grid;grid-template-columns:1fr 1fr;gap:12px;
}
.vflow__split .vflow__node{width:100%}
.vflow__node--dashed{border-style:dashed;border-color:rgba(154,168,182,.35);background:rgba(16,22,29,.4)}
.vflow__node--dashed h4{color:var(--muted)}

/* ---------- Steps (How it works) ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step}
.step{
  position:relative;background:linear-gradient(180deg,var(--card-2),var(--card));
  border:1px solid var(--line);border-radius:14px;padding:22px 18px;
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;color:var(--cyan);
  display:block;margin-bottom:14px;
}
.step::after{
  content:"";position:absolute;top:26px;right:-14px;width:12px;height:1px;
  background:linear-gradient(90deg,rgba(34,211,238,.6),transparent);
}
.step:last-child::after{display:none}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{font-size:.85rem;color:var(--muted);margin:0}

/* ---------- Comparison table ---------- */
.compare-wrap{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card)}
table.compare{width:100%;border-collapse:collapse;font-size:.92rem}
.compare th,.compare td{padding:15px 22px;text-align:left;border-top:1px solid var(--line);vertical-align:top}
.compare thead th{
  border-top:0;background:var(--card-2);
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
}
.compare thead th.col-edge{color:var(--cyan)}
.compare tbody th{font-weight:600;color:var(--text);width:26%}
.compare td{color:var(--muted);width:37%}
.compare td.col-edge{
  color:var(--text);background:linear-gradient(90deg,rgba(34,211,238,.06),rgba(34,211,238,.02));
}
.compare tbody tr:hover td.col-edge{background:rgba(34,211,238,.1)}
.table-note{margin-top:16px;font-size:.84rem;color:var(--dim)}
.table-scroll{overflow-x:auto}

/* ---------- Industry / article cards ---------- */
.industry-card{
  display:flex;flex-direction:column;gap:12px;
  background:linear-gradient(180deg,var(--card-2),var(--card));
  border:1px solid var(--line);border-radius:14px;padding:22px;transition:.22s;
}
.industry-card:hover{border-color:var(--line-2);transform:translateY(-3px)}
.industry-card h3{font-size:1rem;margin:0}
.industry-card p{font-size:.83rem;color:var(--dim);margin:0}
.industry-card .icon{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:rgba(34,211,238,.08);border:1px solid var(--line-2);color:var(--cyan);
}
.industry-card .icon svg{width:18px;height:18px}

.article-list{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.article-row{
  display:flex;align-items:center;gap:18px;padding:18px 24px;
  border-top:1px solid var(--line);background:var(--card);transition:.18s;
}
.article-row:first-child{border-top:0}
.article-row:hover{background:var(--card-2)}
.article-row .a-tag{
  flex:none;width:118px;font-family:var(--font-mono);font-size:.66rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);
}
.article-row h3{flex:1;font-size:.98rem;margin:0;font-weight:600}
.article-row .a-arrow{color:var(--dim);transition:.18s}
.article-row:hover .a-arrow{color:var(--cyan);transform:translateX(4px)}

/* ---------- CTA panel ---------- */
.cta-panel{
  position:relative;overflow:hidden;text-align:center;
  border:1px solid var(--line-2);border-radius:22px;
  padding:76px 40px;
  background:
    radial-gradient(ellipse 60% 70% at 50% 0%,rgba(34,211,238,.12),transparent 65%),
    linear-gradient(180deg,var(--card-2),var(--card));
}
.cta-panel h2{font-size:clamp(1.7rem,3vw,2.4rem);max-width:720px;margin:0 auto 18px}
.cta-panel p{color:var(--muted);max-width:640px;margin:0 auto 34px}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);background:#05070a;padding:70px 0 36px;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.6fr repeat(5,1fr);gap:36px}
.footer__brand p{color:var(--dim);font-size:.88rem;max-width:280px;margin-top:16px}
.footer h4{
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--cyan);margin-bottom:16px;
}
.footer ul li{margin-bottom:10px}
.footer ul a{color:var(--muted);font-size:.88rem;transition:.15s}
.footer ul a:hover{color:var(--cyan)}
.footer__bottom{
  margin-top:54px;padding-top:24px;border-top:1px solid rgba(56,189,248,.09);
  display:flex;flex-wrap:wrap;gap:14px 28px;align-items:center;justify-content:space-between;
  font-size:.8rem;color:var(--dim);
}
.footer__bottom ul{display:flex;gap:22px}
.footer__bottom a:hover{color:var(--cyan)}

/* ---------- Forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-grid .field--full{grid-column:1/-1}
.field label{
  display:block;font-family:var(--font-mono);font-size:.7rem;
  letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:9px;
}
.field input,.field select,.field textarea{
  width:100%;background:rgba(11,15,20,.8);border:1px solid var(--line-2);
  border-radius:11px;color:var(--text);padding:13px 16px;font:inherit;font-size:.95rem;
  transition:.18s;
}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.14);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--cyan) 50%),linear-gradient(135deg,var(--cyan) 50%,transparent 50%);background-position:calc(100% - 21px) 50%,calc(100% - 15px) 50%;background-size:6px 6px;background-repeat:no-repeat}
.form-success{
  display:none;border:1px solid rgba(45,212,191,.4);border-radius:14px;
  background:rgba(45,212,191,.06);padding:26px;text-align:center;
}
.form-success.is-visible{display:block}
.form-success h3{color:var(--teal);margin-bottom:8px}
.form-note{font-size:.8rem;color:var(--dim);margin-top:14px}
.form-status{font-size:.85rem;color:var(--dim);margin:12px 0 0;min-height:1.2em}
.form-status.is-error{color:#f87171}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ---------- Sub-page hero + breadcrumb ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:158px 0 72px;
  background:
    radial-gradient(ellipse 55% 55% at 80% 0%,rgba(34,211,238,.08),transparent 60%),
    linear-gradient(180deg,#0a0e13,var(--bg-0));
}
.page-hero h1{font-size:clamp(2.1rem,4vw,3.2rem);margin:20px 0 18px;max-width:820px}
.page-hero .lead{font-size:1.08rem}
.breadcrumb{
  display:flex;gap:10px;align-items:center;font-family:var(--font-mono);
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:var(--cyan)}

/* ---------- Feature list (checkmark list) ---------- */
.ticks li{
  position:relative;padding-left:30px;margin-bottom:13px;color:var(--muted);font-size:.95rem;
}
.ticks li::before{
  content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:50%;
  background:rgba(34,211,238,.12);border:1px solid var(--line-2);
}
.ticks li::after{
  content:"";position:absolute;left:4.5px;top:11px;width:7px;height:4px;
  border-left:2px solid var(--cyan);border-bottom:2px solid var(--cyan);
  transform:rotate(-45deg);
}

/* ---------- Reveal animation ---------- */
/* Hidden only when JS runs (html.js), so content never stays invisible without it */
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.is-visible{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}.reveal-d2{transition-delay:.16s}
.reveal-d3{transition-delay:.24s}.reveal-d4{transition-delay:.32s}

/* ---------- Anchors under the fixed nav ---------- */
[id]{scroll-margin-top:96px}

/* ---------- Hero learn link + updated line ---------- */
.hero__learn{margin:18px 0 0;color:var(--muted);font-size:.92rem;display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center}
.updated{margin:40px 0 0;font-size:.84rem;color:var(--dim)}

/* ---------- Guide lists (article rows with date) ---------- */
.article-row .a-main{flex:1;min-width:0}
.article-row .a-main h3{font-size:.98rem;margin:0;font-weight:600}
.article-row .a-meta{display:block;margin-top:4px;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.05em;color:var(--dim)}

/* 4-column comparison table (hardware categories) */
.compare--4{min-width:820px}
.compare--4 tbody th{width:19%}
.compare--4 td{width:27%}

/* ---------- Learn: quick answers ---------- */
.qa-list{display:grid;gap:20px;max-width:900px}
.card.qa{padding:30px 32px}
.card.qa h3{font-size:1.3rem;margin-bottom:14px}
.card.qa p{margin:0 0 1em;font-size:.97rem}
.card.qa .link-arrow{margin-top:4px}
.card.qa:hover{transform:none}

/* ---------- Article (Learn guides) ---------- */
.page-hero--article{padding:140px 0 40px}
.page-hero--article h1{max-width:none}
/* Articles: one centred reading column; header and body share the same edges (820px text + 24px gutters) */
.container.post__head,.container.post__wrap{max-width:868px}
.post__topic{margin-top:26px}
.post__topic:hover{color:var(--text)}
.post__meta{display:flex;flex-wrap:wrap;gap:6px 20px;margin:4px 0 0;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;color:var(--dim)}
.post__meta a{color:var(--cyan)}
.post__wrap{padding-bottom:80px}
.post__wrap > *{max-width:820px}
.post__summary{
  margin:0 0 36px;padding:24px 28px;border:1px solid var(--line-2);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(34,211,238,.07),rgba(34,211,238,.02));
}
.post__summary h2{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);margin:0 0 12px}
.post__summary ul{list-style:disc;padding-left:1.2em}
.post__summary li{margin-bottom:.5em;color:var(--text);font-size:.98rem}
.post__summary li::marker{color:var(--cyan)}
.post__figure{margin:0 0 44px}
.post__figure .photo{aspect-ratio:1600/1008}
.post__figure .photo img{height:100%}
.post__figure figcaption{margin-top:10px;font-size:.82rem;color:var(--dim)}
.post__author{margin-top:52px;padding:24px 28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card)}
.post__author h2{font-size:1.05rem;margin-bottom:8px}
.post__author p{margin:0;color:var(--muted);font-size:.94rem}
.post__author a{color:var(--cyan)}
.post__next{margin-top:40px}
.post__next h2{font-size:1.05rem;margin-bottom:14px}
.post__next .article-list{margin-top:22px}

/* ---------- Long-form prose (articles, editorial and legal pages) ---------- */
.prose{font-size:1.04rem;color:#c9d3dd}
.container.prose--page{padding-top:8px}
.prose--page > *{max-width:820px}
.hero h1 .hero__h1-line{display:block}
.prose h2{font-size:1.6rem;margin:2em 0 .65em;color:var(--text)}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.14rem;margin:1.6em 0 .5em;color:var(--text)}
.prose p{margin:0 0 1.1em}
.prose ul,.prose ol{margin:0 0 1.3em;padding-left:1.3em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.55em}
.prose li::marker{color:var(--cyan)}
.prose a{color:var(--cyan);text-decoration:underline;text-decoration-color:rgba(34,211,238,.4);text-underline-offset:3px}
.prose a:hover{text-decoration-color:var(--cyan)}
.prose strong{color:var(--text)}
.prose .table-scroll{margin:0 0 1.4em;border:1px solid var(--line);border-radius:var(--radius)}
.prose table.compare{min-width:560px;font-size:.9rem}
.prose .compare th,.prose .compare td{padding:12px 16px}
.callout{margin:0 0 1.4em;padding:18px 22px;border-left:3px solid var(--cyan);border-radius:0 12px 12px 0;background:var(--card)}
.callout p{margin:0}
.sources li{font-size:.92rem}
.page-hero--404{min-height:62vh}

/* ---------- Responsive ---------- */
@media (max-width:1330px){
  .nav__inner{gap:18px}
  .nav__links{gap:2px}
  .nav__links a{font-size:.84rem;padding:9px 9px}
  .nav__links a[href="/"]{display:none}
}
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-5{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .step:nth-child(3)~.step::after{display:none}
  .footer__grid{grid-template-columns:1fr 1fr 1fr}
  .footer__brand{grid-column:1/-1}
  .nav__links a{padding:9px 9px;font-size:.86rem}
}
@media (max-width:900px){
  .section{padding:80px 0}
  .split{grid-template-columns:1fr;gap:40px}
  .hero .container{grid-template-columns:1fr;gap:56px}
  .hero{padding:148px 0 80px}
  .hero__visual{max-width:640px;margin:0 auto}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .nav__links,.nav__cta{display:none}
  .nav__toggle{display:block}
  .arch__layer{grid-template-columns:1fr;gap:10px;padding:18px 20px}
}
@media (max-width:640px){
  .grid-2,.grid-3,.grid-4,.grid-5{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step::after{display:none}
  .footer__grid{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr}
  .flow{flex-direction:column;align-items:stretch}
  .flow-arrow{transform:rotate(90deg);width:auto;padding:8px 0}
  .flow-step{max-width:none}
  .hero__proofbar div{flex:1 1 100%;border-left:0;border-top:1px solid var(--line)}
  .hero__proofbar div:first-child{border-top:0}
  .cta-panel{padding:56px 22px}
  .compare th,.compare td{padding:12px 14px;font-size:.85rem}
  .article-row{flex-wrap:wrap;gap:8px 14px;padding:16px 18px}
  .page-hero--article{padding:118px 0 30px}
  .post__summary,.post__author{padding:20px}
  .card.qa{padding:24px 20px}
  .prose{font-size:1rem}
  .prose h2{font-size:1.38rem}
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
}