/* Yersolid Tech landing — static CSS.
   Palette is one accent (amber) on a deep ink ground; everything else is
   neutral. Keeping it to a single accent is what stops a landing page from
   looking like a template with five brands stitched together. */

:root{
  --ink:#0b1220;
  --ink-2:#111a2e;
  --ink-3:#18233c;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.06);
  --txt:#eef2f9;
  --mut:#9aa7bd;
  --acc:#ffb020;
  --acc-2:#ff8a00;
  --ok:#3ddc97;
  --r:16px;
  --r-lg:24px;
  --wrap:1180px;
  --sp:clamp(64px,9vw,120px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  background:var(--ink);
  color:var(--txt);
  font:400 16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}

/* Horizontal overflow is contained by `main` + the decorative `.orb` elements
   being inside an `overflow:hidden` hero, so the document never needs a global
   overflow rule. Both alternatives were tried and rejected on evidence:
     - body{overflow-x:hidden} makes body a scroll container; scrollTo(2000)
       landed at 189 and IntersectionObserver fired erratically
     - html{overflow-x:clip}  stops the viewport scrolling entirely;
       scrollTo(2000) landed at 0 and scrollTop=3000 landed at 110
   Leave the document as the single scroller. */
html{overflow-x:visible}
body{overflow-x:visible}

h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0}
h1{font-size:clamp(34px,5.6vw,64px);font-weight:800}
h2{font-size:clamp(26px,3.4vw,44px);font-weight:800}
h3{font-size:clamp(17px,1.5vw,20px);font-weight:700}
p{margin:0}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%;display:block}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:20px}
.wrap.narrow{max-width:860px}
.center{text-align:center}

.skip{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--acc);color:#1a1200;padding:12px 18px;border-radius:0 0 10px 0;font-weight:700;
}
.skip:focus{left:0}
:focus-visible{outline:3px solid var(--acc);outline-offset:3px;border-radius:6px}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(11,18,32,.72);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.nav.stuck{border-bottom-color:var(--line);background:rgba(11,18,32,.92)}
.nav-in{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em}
.brand-mark{color:var(--acc);display:grid;place-items:center}
.brand-txt{font-size:18px}
.brand-txt b{color:var(--acc)}
.nav-links{display:flex;gap:26px;margin-left:auto;font-size:15px;color:var(--mut)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--txt)}
.nav-cta{margin-left:6px}

.burger{
  display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:10px;width:42px;height:42px;cursor:pointer;
  flex-direction:column;gap:5px;align-items:center;justify-content:center;
}
.burger span{width:18px;height:2px;background:var(--txt);border-radius:2px;transition:transform .25s var(--ease),opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mob{
  display:none;flex-direction:column;gap:4px;padding:8px 20px 20px;
  border-top:1px solid var(--line);
}
.mob a{padding:13px 4px;border-bottom:1px solid var(--line-2);color:var(--mut);font-weight:600}
.mob a:hover{color:var(--txt)}
.mob .btn{color:#1a1200;margin-top:12px;border-bottom:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 24px;border-radius:999px;font-weight:700;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .25s var(--ease),background .2s,border-color .2s;
  will-change:transform;
}
.btn-sm{padding:11px 19px;font-size:14px}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(180deg,var(--acc),var(--acc-2));
  color:#1a1200;box-shadow:0 8px 24px -8px rgba(255,176,32,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px -10px rgba(255,176,32,.7)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--line);color:var(--txt);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.07);transform:translateY(-2px)}

/* ---------- hero ---------- */
.hero{position:relative;padding-top:clamp(48px,7vw,84px);overflow:hidden}
.hero-bg{position:absolute;inset:0;pointer-events:none;z-index:0}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5}
.orb-1{width:520px;height:520px;background:radial-gradient(circle,rgba(255,176,32,.42),transparent 68%);top:-180px;right:-120px;animation:drift 22s ease-in-out infinite}
.orb-2{width:420px;height:420px;background:radial-gradient(circle,rgba(90,140,255,.30),transparent 68%);bottom:-150px;left:-140px;animation:drift 26s ease-in-out infinite reverse}
@keyframes drift{0%,100%{transform:translate3d(0,0,0)}50%{transform:translate3d(-34px,26px,0)}}
.grid-lines{
  position:absolute;inset:0;
  background-image:linear-gradient(var(--line-2) 1px,transparent 1px),linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 20%,transparent 75%);
}

.hero-in{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.04fr .96fr;gap:clamp(28px,4vw,60px);
  align-items:center;padding-bottom:clamp(40px,5vw,60px);
}
.eyebrow{
  color:var(--acc);font-weight:700;font-size:13px;letter-spacing:.14em;
  text-transform:uppercase;margin-bottom:18px;
}
.grad{
  background:linear-gradient(100deg,var(--acc),#ffd98a 60%,var(--acc-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{color:var(--mut);font-size:clamp(16px,1.6vw,18.5px);margin-top:22px;max-width:56ch}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.cta-row.center{justify-content:center}
.hero-note{color:var(--mut);font-size:14px;margin-top:20px}
.hero-note b{color:var(--txt)}

/* ---------- product mock ---------- */
.hero-mock{
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(180deg,var(--ink-2),var(--ink-3));
  box-shadow:0 40px 80px -30px rgba(0,0,0,.75),inset 0 1px 0 rgba(255,255,255,.05);
  overflow:hidden;
}
.mock-chrome{
  display:flex;align-items:center;gap:7px;padding:12px 16px;
  border-bottom:1px solid var(--line);background:rgba(0,0,0,.22);
}
.dot{width:10px;height:10px;border-radius:50%}
.dot.r{background:#ff5f57}.dot.y{background:#febc2e}.dot.g{background:#28c840}
.mock-url{margin-left:10px;font-size:12px;color:var(--mut);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.mock-body{display:grid;grid-template-columns:52px 1fr;min-height:340px}
.mock-side{border-right:1px solid var(--line);padding:16px 0;display:flex;flex-direction:column;gap:12px;align-items:center}
.ms{width:22px;height:4px;border-radius:4px;background:rgba(255,255,255,.13)}
.ms.on{background:var(--acc);width:26px;height:6px}
.mock-main{padding:18px}
.mock-head{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--mut);font-weight:600}
.pill{
  display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;
  padding:4px 10px;border-radius:999px;background:rgba(61,220,151,.14);color:var(--ok);
}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--ok);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.78)}}

.mock-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.stat{background:rgba(255,255,255,.04);border:1px solid var(--line-2);border-radius:14px;padding:13px 14px}
.stat-lbl{font-size:11px;color:var(--mut);text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.stat-val{display:block;font-size:clamp(18px,2vw,23px);font-weight:800;margin-top:7px;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-sub{font-size:11.5px;color:var(--ok);font-weight:600}

.chart{margin-top:16px}
.bars{display:flex;align-items:flex-end;gap:7px;height:104px}
.bars i{
  flex:1;border-radius:6px 6px 3px 3px;
  background:linear-gradient(180deg,rgba(255,176,32,.95),rgba(255,138,0,.42));
  height:0;
  transition:height .9s var(--ease);
}
.bars.in i{height:var(--h)}
.bars i.peak{background:linear-gradient(180deg,#fff0c9,var(--acc))}
.chart-x{display:flex;gap:7px;margin-top:8px}
.chart-x span{flex:1;text-align:center;font-size:10.5px;color:var(--mut)}

.kds{margin-top:16px;display:flex;flex-direction:column;gap:8px;min-height:40px}
.kds-row{
  display:flex;align-items:center;gap:10px;
  background:rgba(61,220,151,.10);border:1px solid rgba(61,220,151,.30);
  border-radius:12px;padding:10px 13px;font-size:13px;
  animation:slideIn .45s var(--ease);
}
.kds-row .t{color:var(--mut);font-variant-numeric:tabular-nums;font-size:12px}
.kds-row .n{font-weight:700}
.kds-row .s{margin-left:auto;color:var(--ok);font-weight:700;font-size:11.5px;letter-spacing:.04em}
@keyframes slideIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

/* ---------- trust ---------- */
.trust{position:relative;z-index:1;padding-bottom:clamp(40px,5vw,70px)}
.trust-lbl{font-size:12.5px;color:var(--mut);text-transform:uppercase;letter-spacing:.14em;font-weight:700;margin-bottom:14px}
.trust-row{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  border:1px solid var(--line);border-radius:999px;padding:9px 17px;
  font-size:13.5px;color:var(--mut);background:rgba(255,255,255,.03);
  transition:color .2s,border-color .2s,transform .2s var(--ease);
}
.chip:hover{color:var(--txt);border-color:rgba(255,255,255,.25);transform:translateY(-2px)}

/* ---------- bands ---------- */
.band{padding-block:var(--sp);border-top:1px solid var(--line-2);position:relative}
.band.alt{background:linear-gradient(180deg,rgba(255,255,255,.022),transparent)}
.sub{color:var(--mut);margin-top:16px;font-size:clamp(15px,1.5vw,17.5px);max-width:62ch}
.band h2+.sub{margin-bottom:clamp(34px,4vw,52px)}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{
  border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  position:relative;overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s;
}
.card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(520px 180px at var(--mx,50%) var(--my,0%),rgba(255,176,32,.14),transparent 60%);
  opacity:0;transition:opacity .3s;
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,176,32,.4)}
.card:hover::after{opacity:1}
.card-num{font-size:12px;font-weight:800;color:var(--acc);letter-spacing:.16em}
.card h3{margin:14px 0 10px}
.card p{color:var(--mut);font-size:15px}

/* ---------- features ---------- */
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feat{
  border:1px solid var(--line);border-radius:var(--r);padding:26px 22px;
  background:rgba(255,255,255,.028);
  transition:transform .28s var(--ease),border-color .28s,background .28s;
}
.feat:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.055)}
.feat-ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(180deg,rgba(255,176,32,.20),rgba(255,176,32,.07));
  border:1px solid rgba(255,176,32,.30);color:var(--acc);margin-bottom:16px;
}
.feat-ico svg{width:23px;height:23px}
.feat h3{margin-bottom:9px}
.feat p{color:var(--mut);font-size:14.5px}

/* ---------- steps ---------- */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{position:relative;padding-top:14px}
.step::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--line);border-radius:2px}
.step::after{content:"";position:absolute;top:0;left:0;width:0;height:2px;background:var(--acc);border-radius:2px;transition:width .8s var(--ease)}
.step.in::after{width:100%}
.step-n{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:rgba(255,176,32,.14);border:1px solid rgba(255,176,32,.35);
  color:var(--acc);font-weight:800;font-size:14px;margin:20px 0 14px;
}
.step h3{margin-bottom:8px}
.step p{color:var(--mut);font-size:14.5px}

/* ---------- pricing ---------- */
.price-toggle{display:inline-flex;gap:4px;padding:5px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.03);margin-bottom:30px}
.tg{
  border:0;background:none;color:var(--mut);font:700 14px/1 inherit;
  padding:11px 20px;border-radius:999px;cursor:pointer;transition:background .2s,color .2s;
}
.tg.on{background:var(--acc);color:#1a1200}
.tg .save{font-size:11.5px;opacity:.85;font-weight:800}

.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}
.plan{
  border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 26px;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  display:flex;flex-direction:column;gap:16px;position:relative;
  transition:transform .3s var(--ease),border-color .3s;
}
.plan:hover{transform:translateY(-4px)}
.plan.pop{border-color:rgba(255,176,32,.55);box-shadow:0 30px 70px -30px rgba(255,176,32,.35)}
.pop-tag{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:linear-gradient(180deg,var(--acc),var(--acc-2));color:#1a1200;
  font-size:11.5px;font-weight:800;padding:6px 15px;border-radius:999px;white-space:nowrap;
  letter-spacing:.03em;
}
.plan h3{font-size:20px}
.plan-for{color:var(--mut);font-size:14px;min-height:42px}
.plan-price{display:flex;align-items:baseline;gap:7px;font-variant-numeric:tabular-nums}
.plan-price .cur{font-size:17px;font-weight:700;color:var(--mut)}
.plan-price .amt{font-size:clamp(30px,3.4vw,40px);font-weight:800;letter-spacing:-.03em}
.plan-price .per{font-size:14px;color:var(--mut)}
.plan-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;flex:1}
.plan-list li{position:relative;padding-left:27px;color:var(--mut);font-size:14.5px}
.plan-list li::before{
  content:"";position:absolute;left:0;top:6px;width:16px;height:16px;border-radius:50%;
  background:rgba(61,220,151,.16);
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.4l2.6 2.6L12 5.4' fill='none' stroke='%233ddc97' stroke-width='2.1' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size:16px;
}
.plan-list b{color:var(--txt)}
.price-note{color:var(--mut);font-size:13.5px;margin-top:24px}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px}
.faq details{
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  background:rgba(255,255,255,.028);transition:border-color .25s,background .25s;
}
.faq details[open]{border-color:rgba(255,176,32,.4);background:rgba(255,255,255,.05)}
.faq summary{
  cursor:pointer;padding:19px 22px;font-weight:700;font-size:15.5px;
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";width:11px;height:11px;flex:none;
  border-right:2.2px solid var(--acc);border-bottom:2.2px solid var(--acc);
  transform:rotate(45deg) translateY(-2px);transition:transform .3s var(--ease);
}
.faq details[open] summary::after{transform:rotate(-135deg) translateY(-2px)}
.faq p{padding:0 22px 20px;color:var(--mut);font-size:14.5px}

/* ---------- closing ---------- */
.closing{padding-block:var(--sp);border-top:1px solid var(--line-2);position:relative;overflow:hidden}
.closing::before{
  content:"";position:absolute;left:50%;top:-40%;transform:translateX(-50%);
  width:760px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,176,32,.16),transparent 66%);filter:blur(70px);
}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);background:rgba(0,0,0,.28)}
.foot-in{display:flex;gap:26px;justify-content:space-between;align-items:flex-start;padding-block:36px;flex-wrap:wrap}
.foot-brand p{color:var(--mut);font-size:14px;margin-top:10px;max-width:42ch}
.foot-nav{display:flex;gap:22px;color:var(--mut);font-size:14.5px}
.foot-nav a:hover{color:var(--txt)}
.foot-bot{border-top:1px solid var(--line-2);padding-block:18px;color:var(--mut);font-size:13px}

/* ---------- reveal ---------- */
/* Gated on .js so that with JavaScript disabled or blocked the content renders
   normally instead of staying at opacity 0 -- a landing page that depends on JS
   to become visible is a landing page that shows a blank screen to a crawler,
   a reader-mode browser, or anyone whose bundle failed to load. */
.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  .orb{animation:none}
  .bars i{transition:none}
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .hero-in{grid-template-columns:1fr}
  .hero-mock{order:2}
  .features,.feats{grid-template-columns:repeat(2,1fr)}
  .cards,.plans{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .plan.pop{order:-1}
}
@media (max-width:760px){
  .nav-links,.nav-cta{display:none}
  .burger{display:flex}
  .mob[hidden]{display:none}
  .mob{display:flex}
  .feats,.steps{grid-template-columns:1fr}
  .mock-body{grid-template-columns:1fr}
  .mock-side{display:none}
  .foot-in{flex-direction:column;gap:18px}
  .cta-row .btn{flex:1 1 100%}
}