/* =========================================================
   NeuralThreads — dark premium theme
   Indigo / cyan / violet thread on near-black
   ========================================================= */

:root{
  /* surfaces */
  --bg:         #06070B;
  --bg-2:       #0A0B10;
  --elev:       #0E0F15;
  --elev-2:     #14161D;

  /* glass */
  --glass:      rgba(255,255,255,.04);
  --glass-2:    rgba(255,255,255,.018);
  --glass-dark: rgba(10,11,16,.6);
  --line:       rgba(255,255,255,.08);
  --line-2:     rgba(255,255,255,.14);

  /* ink */
  --ink:        #ECEDF1;
  --ink-2:      #A6ACB8;
  --ink-3:      #6B7280;
  --ink-4:      #454B57;

  /* brand thread */
  --indigo:     #6D5EF6;
  --cyan:       #37D6E5;
  --violet:     #B15CFF;
  --cyan-hi:    #7EE8F2;
  --accent:     linear-gradient(100deg,#6D5EF6 0%,#37D6E5 52%,#B15CFF 100%);
  --accent-txt: linear-gradient(100deg,#8478ff 0%,#5fe0ec 52%,#c07dff 100%);

  /* platform accents */
  --gpt:        #10A37F;
  --claude:     #D8825A;
  --gemini:     #4285F4;
  --plx:        #20B8CD;
  --copilot:    #B15CFF;
  --grok:       #E6EDF2;

  --r-sm:       12px;
  --r:          18px;
  --r-lg:       22px;
  --maxw:       1180px;
  --ease:       cubic-bezier(.22,.61,.36,1);

  --font-sans:    "Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-display: "Space Grotesk","Manrope",sans-serif;
  --font-serif:   "Instrument Serif",Georgia,serif;
  --font-mono:    ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:clamp(15px,.5vw + 14px,17px);
  line-height:1.65;
  letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

/* fixed radial lighting */
body::before{
  content:"";position:fixed;inset:0;z-index:-3;pointer-events:none;
  background:
    radial-gradient(1200px 620px at 50% -10%, rgba(109,94,246,.16), transparent 60%),
    radial-gradient(900px 500px at 85% 8%, rgba(55,214,229,.08), transparent 55%),
    radial-gradient(760px 480px at 12% 18%, rgba(177,92,255,.09), transparent 55%),
    var(--bg);
}

/* faint animated mesh */
.mesh{position:fixed;inset:-25%;z-index:-2;pointer-events:none;opacity:.26;filter:blur(80px)}
.mesh__blob{position:absolute;border-radius:50%;mix-blend-mode:screen}
.mesh__blob--1{width:46vw;height:46vw;left:4%;top:6%;background:radial-gradient(closest-side,rgba(109,94,246,.20),transparent 72%);animation:drift1 26s ease-in-out infinite}
.mesh__blob--2{width:52vw;height:52vw;right:2%;top:22%;background:radial-gradient(closest-side,rgba(177,92,255,.15),transparent 72%);animation:drift2 32s ease-in-out infinite}
.mesh__blob--3{width:40vw;height:40vw;left:30%;bottom:2%;background:radial-gradient(closest-side,rgba(55,214,229,.10),transparent 72%);animation:drift3 38s ease-in-out infinite}
@keyframes drift1{0%,100%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(6vw,4vh,0) scale(1.12)}}
@keyframes drift2{0%,100%{transform:translate3d(0,0,0) scale(1.05)}50%{transform:translate3d(-5vw,6vh,0) scale(.94)}}
@keyframes drift3{0%,100%{transform:translate3d(0,0,0) scale(.96)}50%{transform:translate3d(4vw,-5vh,0) scale(1.1)}}

/* film grain */
.grain{
  position:fixed;inset:0;z-index:9998;pointer-events:none;opacity:.035;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a{color:inherit;text-decoration:none}
img,svg{display:block}
h1,h2,h3,h4{margin:0;letter-spacing:-.035em;line-height:1.04;font-weight:700;font-family:var(--font-display)}
p{margin:0}
::selection{background:rgba(109,94,246,.35);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%}
.wrap--narrow{max-width:820px}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn{
  --pad:12px 18px;
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:var(--pad);border-radius:12px;font-weight:600;font-size:.95rem;
  font-family:var(--font-sans);letter-spacing:-.01em;cursor:pointer;border:1px solid transparent;
  transition:transform .3s var(--ease),background .3s,border-color .3s,box-shadow .4s,color .3s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn--lg{--pad:15px 25px;font-size:1.01rem;border-radius:14px}
.btn--block{width:100%}
.btn__os{opacity:.9}

.btn--primary{
  color:#0b0c10;background:#fff;
  box-shadow:0 1px 0 rgba(255,255,255,.6) inset,0 8px 24px rgba(0,0,0,.35);
}
.btn--primary:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 34px rgba(109,94,246,.34),0 1px 0 rgba(255,255,255,.6) inset;
}

.btn--glass{
  color:var(--ink);background:rgba(255,255,255,.04);
  border-color:var(--line-2);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.btn--glass:hover{background:rgba(255,255,255,.08);transform:translateY(-2px);border-color:rgba(109,94,246,.45)}

.btn--ghost{color:var(--ink-2);background:transparent;padding:10px 12px}
.btn--ghost:hover{color:var(--ink)}

/* =========================================================
   NAV
   ========================================================= */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  transition:background .4s,border-color .4s,backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(8,9,13,.72);
  backdrop-filter:blur(18px) saturate(150%);-webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom-color:var(--line);
}
.nav__inner{max-width:1260px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:26px}

.brand{display:inline-flex;align-items:center;gap:11px;font-weight:700}
.brand__mark{animation:markGlow 3.4s ease-in-out infinite}
@keyframes markGlow{
  0%,100%{filter:drop-shadow(0 3px 10px rgba(109,94,246,.32))}
  50%{filter:drop-shadow(0 3px 18px rgba(109,94,246,.62))}
}
.brand__word{font-size:1.14rem;letter-spacing:-.035em;font-family:var(--font-display);font-weight:700}
.brand__thread{background:var(--accent);-webkit-background-clip:text;background-clip:text;color:transparent}

.nav__links{display:flex;gap:4px;margin-left:10px}
.nav__links a{padding:8px 13px;border-radius:9px;color:var(--ink-2);font-size:.92rem;font-weight:500;transition:color .2s,background .2s}
.nav__links a:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.nav__actions{display:flex;align-items:center;gap:12px;margin-left:auto}

/* live backend status */
.status{
  display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:100px;
  font-size:.78rem;font-weight:600;color:var(--ink-3);letter-spacing:-.005em;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.status__dot{width:7px;height:7px;border-radius:50%;background:var(--ink-4);flex:none;transition:background .3s,box-shadow .3s}
.status[data-state="live"]{color:var(--ink-2)}
.status[data-state="live"] .status__dot{background:var(--cyan);box-shadow:0 0 0 0 rgba(55,214,229,.6);animation:ping 2.4s infinite}
.status[data-state="offline"] .status__dot{background:var(--claude);box-shadow:0 0 10px rgba(216,130,90,.5)}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(55,214,229,.55)}70%{box-shadow:0 0 0 7px rgba(55,214,229,0)}100%{box-shadow:0 0 0 0 rgba(55,214,229,0)}}

.nav__burger{display:none;margin-left:auto;background:none;border:0;cursor:pointer;width:42px;height:42px;border-radius:10px;position:relative}
.nav__burger span{position:absolute;left:11px;right:11px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease),opacity .3s}
.nav__burger span:nth-child(1){top:16px}
.nav__burger span:nth-child(2){top:24px}
.nav__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(4px) rotate(45deg)}
.nav__burger[aria-expanded="true"] span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}

.nav__mobile{
  display:none;flex-direction:column;gap:2px;padding:12px 20px 22px;
  background:rgba(8,9,13,.96);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav__mobile a{padding:14px 8px;color:var(--ink-2);font-weight:500;border-bottom:1px solid var(--line)}
.nav__mobile a.btn{color:#0b0c10;border:0;margin-top:14px;justify-content:center}
.nav__mobile.open{display:flex}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative;min-height:100svh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;
  padding:150px 24px 56px;overflow:hidden;
}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.5}
.hero__glow{
  position:absolute;left:50%;top:38%;transform:translate(-50%,-50%);
  width:min(940px,92vw);height:540px;z-index:0;pointer-events:none;
  background:radial-gradient(closest-side,rgba(109,94,246,.16),transparent 70%);
  filter:blur(34px);
}
.hero__inner{position:relative;z-index:2;max-width:920px;display:flex;flex-direction:column;align-items:center}

.pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:100px;font-size:.83rem;font-weight:500;color:var(--ink-2);
  background:rgba(255,255,255,.04);border:1px solid var(--line-2);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:border-color .3s,color .3s,transform .3s;margin-bottom:30px;
}
.pill:hover{color:var(--ink);border-color:rgba(255,255,255,.24);transform:translateY(-1px)}
.pill__dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 rgba(55,214,229,.6);animation:ping 2.4s infinite;flex:none}

.hero__title{
  font-family:var(--font-serif);font-style:normal;
  font-size:clamp(2.9rem,7.6vw,5.6rem);font-weight:400;letter-spacing:-.015em;line-height:1.06;
  margin-bottom:26px;
}
.he-line2{display:inline-flex;align-items:baseline;flex-wrap:wrap;justify-content:center}
.he-dot{color:var(--cyan-hi)}

.rotator{display:inline-block;position:relative;vertical-align:bottom;padding-bottom:.06em}
.rotator__inner{
  display:inline-block;font-family:var(--font-serif);font-style:italic;font-weight:400;
  color:var(--cyan-hi);text-shadow:0 0 44px rgba(55,214,229,.35);
  padding:0 .04em .04em;border-bottom:3px solid var(--indigo);
  transition:transform .42s var(--ease),opacity .42s var(--ease),border-color .42s;
  will-change:transform,opacity;
}
.rotator__inner.is-out{transform:translateY(-.55em);opacity:0}
.rotator__inner.is-in{transform:translateY(.55em);opacity:0;border-color:transparent}

.hero__sub{color:var(--ink-2);font-size:clamp(1.02rem,1.6vw,1.24rem);line-height:1.55;max-width:670px;margin-bottom:36px}
.hero__sub strong{color:var(--ink);font-weight:700}

.hero__cta{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-bottom:20px}
.hero__fine{color:var(--ink-4);font-size:.82rem;margin-bottom:32px}

.hero__meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center;color:var(--ink-3);font-size:.86rem}
.hero__meta b{color:var(--ink-2);font-weight:700}
.hero__meta i{width:4px;height:4px;border-radius:50%;background:var(--ink-4)}

.worksWith{position:relative;z-index:2;margin-top:56px;display:flex;flex-direction:column;align-items:center;gap:16px}
.worksWith__label{font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:600}
.worksWith__logos{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:100px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);font-size:.9rem;font-weight:600;color:var(--ink-2);
  transition:transform .25s var(--ease),border-color .25s,color .25s;
}
.chip:hover{transform:translateY(-2px);color:var(--ink);border-color:var(--line-2)}
.chip__dot{width:9px;height:9px;border-radius:50%;flex:none}
.chip__dot--gpt{background:var(--gpt);box-shadow:0 0 10px var(--gpt)}
.chip__dot--claude{background:var(--claude);box-shadow:0 0 10px var(--claude)}
.chip__dot--gemini{background:var(--gemini);box-shadow:0 0 10px var(--gemini)}
.chip__dot--plx{background:var(--plx);box-shadow:0 0 10px var(--plx)}

/* =========================================================
   SECTIONS / SHARED
   ========================================================= */
.section{padding:clamp(80px,11vw,150px) 0;position:relative}
.section--tint::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:-1;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.015) 12%,rgba(255,255,255,.015) 88%,transparent);
}

.head{max-width:740px;margin:0 auto clamp(48px,6vw,78px);text-align:center;position:relative}
.head--left{text-align:left;margin-left:0}
.head::before{
  content:"";position:absolute;left:50%;top:-30%;transform:translateX(-50%);
  width:520px;height:220px;pointer-events:none;z-index:-1;
  background:radial-gradient(closest-side,rgba(109,94,246,.13),transparent 72%);filter:blur(30px);
}
.head--left::before{left:0;transform:none}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;
  font-weight:700;margin-bottom:18px;font-family:var(--font-sans);color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);opacity:.5;flex:none}
.h2{
  font-family:var(--font-serif);font-style:normal;font-weight:400;
  font-size:clamp(2.1rem,4.6vw,3.5rem);letter-spacing:-.015em;line-height:1.1;margin-bottom:20px;
}
.h2 .dim{color:var(--ink-3)}
.h2 .grad{font-style:italic;color:var(--cyan-hi)}
.lede{color:var(--ink-2);font-size:clamp(1rem,1.4vw,1.16rem);line-height:1.6;max-width:650px;margin:0 auto}
.head--left .lede{margin-left:0}
.lede strong{color:var(--ink);font-weight:700}
.lede em{color:var(--cyan);font-style:normal;font-weight:600}

/* =========================================================
   CARDS
   ========================================================= */
.grid{display:grid;gap:18px}
.grid--3{grid-template-columns:repeat(3,1fr)}

.card{
  position:relative;padding:30px 28px;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012));
  border:1px solid var(--line);overflow:hidden;
  transition:transform .4s var(--ease),border-color .4s,background .4s;
}
.card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;
  background:var(--accent);opacity:0;transition:opacity .4s;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
}
.card:hover{transform:translateY(-4px);background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02))}
.card:hover::after{opacity:.55}
.card__ix{
  font-family:var(--font-serif);font-style:italic;font-weight:400;
  font-size:1.7rem;line-height:1;margin-bottom:14px;color:var(--cyan-hi);opacity:.6;
}
.card__title{font-size:1.22rem;margin-bottom:11px;font-weight:700;letter-spacing:-.02em}
.card p{color:var(--ink-2);font-size:.96rem;line-height:1.6}
.card em{color:var(--ink);font-style:normal;font-weight:600}

.feat .card--feat{padding:32px 28px}
.feat__ic{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:20px;
  color:var(--ink);background:rgba(255,255,255,.04);border:1px solid var(--line-2);
}
.feat__ic svg{width:22px;height:22px}
.card--feat h3{font-size:1.14rem;margin-bottom:9px;font-weight:700;letter-spacing:-.02em;display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.soon{
  font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;font-weight:800;font-family:var(--font-sans);
  padding:3px 7px;border-radius:100px;color:var(--cyan);background:rgba(55,214,229,.1);border:1px solid rgba(55,214,229,.25);
}

/* =========================================================
   ENGINE DIAGRAM
   ========================================================= */
.engine{
  position:relative;max-width:1180px;margin:0 auto;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.032),rgba(255,255,255,.01));
  border:1px solid var(--line);overflow:hidden;
  box-shadow:0 30px 90px rgba(0,0,0,.42);
}
.engine__scroll{overflow-x:auto;overflow-y:hidden;scrollbar-width:thin}
.engine__svg{width:100%;min-width:760px;height:auto;display:block}
.engine__hint{display:none;text-align:center;color:var(--ink-4);font-size:.78rem;padding:0 0 14px}

.eng-ring{transform-box:view-box;transform-origin:560px 370px}
.eng-ring--slow{animation:spin 64s linear infinite}
.eng-ring--rev{animation:spin 42s linear infinite reverse}
.eng-ring--fast{animation:spin 28s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.eng-node{cursor:default;transition:opacity .35s var(--ease)}
.eng-node__box{transition:fill .35s,stroke .35s,filter .35s}
.eng-node:hover .eng-node__box{fill:rgba(255,255,255,.12);stroke:rgba(109,94,246,.75);filter:drop-shadow(0 0 18px rgba(109,94,246,.5))}
.eng-wire{transition:opacity .35s var(--ease),stroke-opacity .35s}
.eng-pulse{transition:opacity .35s}
.engine.is-focused .eng-node.is-dim{opacity:.22}
.engine.is-focused .eng-wire.is-dim{stroke-opacity:.05}
.engine.is-focused .eng-pulse.is-dim{opacity:0}

.eng-label{font-family:var(--font-sans);font-weight:700;letter-spacing:-.01em}
.eng-sub{font-family:var(--font-sans);font-weight:600;font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.eng-core-name{font-family:var(--font-display);font-weight:700;letter-spacing:-.02em}
.eng-ringtext{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.42em;text-transform:uppercase;fill:rgba(166,172,184,.42)}

.engine__legend{
  display:flex;gap:26px;flex-wrap:wrap;justify-content:center;align-items:center;
  padding:0 24px 26px;color:var(--ink-3);font-size:.84rem;
}
.legend__item{display:inline-flex;align-items:center;gap:9px}
.legend__swatch{width:26px;height:2px;border-radius:2px;flex:none}
.legend__swatch--in{background:linear-gradient(90deg,transparent,var(--cyan))}
.legend__swatch--out{background:linear-gradient(90deg,var(--violet),transparent)}
.legend__swatch--soon{background:repeating-linear-gradient(90deg,var(--ink-4) 0 4px,transparent 4px 8px)}

.platform-note{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:34px;font-size:.86rem}
.platform-note__live{color:var(--ink);font-weight:600}
.platform-note__soon{color:var(--ink-3)}

/* =========================================================
   INSTALL STEPS
   ========================================================= */
.install{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:1080px;margin:0 auto}
.istep{
  position:relative;padding:30px 28px 32px;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012));
  border:1px solid var(--line);overflow:hidden;
  transition:transform .4s var(--ease),border-color .4s;
}
.istep:hover{transform:translateY(-4px);border-color:var(--line-2)}
.istep__num{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;margin-bottom:20px;
  font-family:var(--font-display);font-weight:700;font-size:1.06rem;color:#0b0c10;
  background:var(--accent);box-shadow:0 8px 26px rgba(109,94,246,.3);
}
.istep h3{font-size:1.14rem;font-weight:700;letter-spacing:-.02em;margin-bottom:10px}
.istep p{color:var(--ink-2);font-size:.95rem;line-height:1.65}
.istep b{color:var(--ink);font-weight:700}
.istep__aside{margin-top:16px;font-size:.84rem;color:var(--ink-3);display:flex;gap:8px;align-items:flex-start;line-height:1.5}
.istep__aside svg{flex:none;margin-top:3px;color:var(--cyan);opacity:.8}

.copy{
  display:inline-flex;align-items:center;gap:10px;margin-top:14px;padding:9px 12px;
  border-radius:10px;background:rgba(0,0,0,.4);border:1px solid var(--line-2);
  font-family:var(--font-mono);font-size:.84rem;color:var(--cyan);cursor:pointer;
  transition:border-color .25s,background .25s,transform .25s var(--ease);
}
.copy:hover{border-color:rgba(55,214,229,.6);background:rgba(0,0,0,.6);transform:translateY(-1px)}
.copy__ic{color:var(--ink-3);flex:none;transition:color .25s}
.copy:hover .copy__ic{color:var(--cyan)}
.copy.is-copied{border-color:var(--cyan)}

.toggle-demo{display:inline-flex;align-items:center;gap:10px;margin-top:14px;font-size:.85rem;color:var(--ink-3)}
.toggle-demo__sw{width:38px;height:21px;border-radius:100px;background:var(--indigo);position:relative;flex:none;box-shadow:0 0 18px rgba(109,94,246,.55)}
.toggle-demo__sw::after{content:"";position:absolute;top:3px;right:3px;width:15px;height:15px;border-radius:50%;background:#0b0c10}

/* =========================================================
   USE FLOW
   ========================================================= */
.flow{list-style:none;margin:0 auto;padding:0;display:grid;gap:0;max-width:840px}
.fstep{display:flex;gap:26px;padding:30px 0;border-top:1px solid var(--line);position:relative}
.fstep:first-child{border-top:0}
.fstep__num{flex:none;position:relative}
.fstep__num span{
  display:grid;place-items:center;width:52px;height:52px;border-radius:15px;
  font-weight:700;font-size:1.15rem;color:var(--ink);font-family:var(--font-display);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line-2);position:relative;z-index:1;
}
.fstep:not(:last-child) .fstep__num::after{
  content:"";position:absolute;left:50%;top:52px;bottom:-30px;width:2px;transform:translateX(-50%);
  background:linear-gradient(180deg,var(--line-2),transparent);
}
.fstep__body h3{font-size:1.32rem;font-weight:700;letter-spacing:-.02em;margin-bottom:8px}
.fstep__sub{color:var(--ink-3);font-weight:400;font-size:1.05rem;font-style:italic;font-family:var(--font-serif)}
.fstep__body p{color:var(--ink-2);max-width:570px;margin-bottom:14px}
.tag{
  display:inline-block;font-size:.74rem;letter-spacing:.05em;font-weight:600;color:var(--ink-2);
  padding:5px 11px;border-radius:100px;background:rgba(255,255,255,.04);border:1px solid var(--line);
}

.magic{
  margin:64px auto 0;max-width:790px;display:flex;gap:20px;align-items:flex-start;
  padding:28px 30px;border-radius:var(--r-lg);
  background:
    radial-gradient(120% 140% at 0% 0%,rgba(109,94,246,.12),transparent 60%),
    linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));
  border:1px solid var(--line-2);
}
.magic__glyph{flex:none;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;color:#0b0c10;background:var(--accent);box-shadow:0 8px 24px rgba(109,94,246,.3)}
.magic__quote{color:var(--ink-2);font-size:1.02rem;line-height:1.6}
.magic__quote em{color:var(--ink);font-style:italic;font-family:var(--font-serif);font-size:1.22rem;line-height:1.45}

/* =========================================================
   ROADMAP
   ========================================================= */
.roadmap{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:1090px;margin:0 auto}
.road__rail{display:flex;align-items:center;margin-bottom:18px;position:relative}
.road__rail::before{content:"";height:2px;flex:1;background:linear-gradient(90deg,var(--line-2),transparent)}
.road__dot{width:13px;height:13px;border-radius:50%;flex:none;order:-1;background:var(--elev-2);border:2px solid var(--ink-4)}
.road__dot--live{background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 0 4px rgba(55,214,229,.18),0 0 16px var(--cyan)}
.road__card{
  padding:24px 22px;border-radius:var(--r-lg);height:100%;
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012));
  border:1px solid var(--line);transition:transform .4s var(--ease),border-color .4s;
}
.road:first-child .road__card{border-color:rgba(55,214,229,.28);background:linear-gradient(180deg,rgba(55,214,229,.06),rgba(255,255,255,.012))}
.road__card:hover{transform:translateY(-4px);border-color:var(--line-2)}
.road__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.road__ver{font-size:.95rem;font-weight:800;font-family:var(--font-display);color:var(--violet)}
.road__badge{font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;font-weight:800;color:var(--ink-3);padding:4px 9px;border-radius:100px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.road__badge--live{color:var(--cyan);border-color:rgba(55,214,229,.3);background:rgba(55,214,229,.1)}
.road__card h3{font-size:1.1rem;font-weight:700;letter-spacing:-.02em;margin-bottom:9px}
.road__card p{color:var(--ink-2);font-size:.9rem;line-height:1.55}

/* =========================================================
   DOWNLOAD
   ========================================================= */
.dl{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:1060px;margin:0 auto}
.dl__card{
  display:flex;align-items:center;gap:16px;padding:24px 22px;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.014));
  border:1px solid var(--line-2);position:relative;overflow:hidden;
  transition:transform .35s var(--ease),border-color .35s,background .35s;
}
.dl__card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;opacity:0;
  background:var(--accent);transition:opacity .35s;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;
}
.dl__card:hover{transform:translateY(-4px)}
.dl__card:hover::after{opacity:.7}
.dl__card.is-target{border-color:rgba(255,255,255,.28);background:linear-gradient(180deg,rgba(109,94,246,.1),rgba(255,255,255,.02))}
.dl__badge{
  position:absolute;top:12px;right:14px;font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;
  font-weight:800;color:var(--cyan);opacity:0;transition:opacity .3s;
}
.dl__card.is-target .dl__badge{opacity:1}
.dl__os{flex:none;width:54px;height:54px;border-radius:14px;display:grid;place-items:center;color:var(--ink);background:rgba(255,255,255,.05);border:1px solid var(--line-2)}
.dl__meta{display:flex;flex-direction:column;gap:1px;min-width:0}
.dl__for{font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);font-weight:700}
.dl__name{font-size:1.2rem;font-weight:700;letter-spacing:-.02em;font-family:var(--font-display)}
.dl__note{font-size:.78rem;color:var(--ink-3);margin-top:3px}
.dl__arrow{margin-left:auto;color:var(--ink-2);flex:none;transition:transform .3s var(--ease),color .3s}
.dl__card:hover .dl__arrow{transform:translateY(3px);color:var(--ink)}

.dl__foot{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:28px;text-align:center}
.dl__stat{color:var(--ink-3);font-size:.9rem}
.dl__stat b{color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums}
.dl__store{color:var(--ink-3);font-size:.88rem}
.dl__store a{color:var(--ink);font-weight:600;border-bottom:1px solid var(--line-2);padding-bottom:1px;transition:border-color .2s}
.dl__store a:hover{border-color:var(--cyan)}

/* =========================================================
   FAQ
   ========================================================= */
.faq{display:flex;flex-direction:column;gap:10px}
.faq__item{
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
  background:rgba(255,255,255,.02);transition:border-color .3s,background .3s;
}
.faq__item[open]{border-color:var(--line-2);background:rgba(255,255,255,.03)}
.faq__item summary{
  list-style:none;cursor:pointer;padding:20px 22px;font-weight:700;font-size:1.02rem;
  display:flex;align-items:center;gap:14px;color:var(--ink);
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";margin-left:auto;font-size:1.4rem;font-weight:400;color:var(--ink-3);transition:transform .3s var(--ease),color .3s;line-height:1}
.faq__item[open] summary::after{transform:rotate(45deg);color:var(--cyan)}
.faq__item p{padding:0 22px 22px;color:var(--ink-2);line-height:1.65;max-width:660px}
.faq__item code{font-family:var(--font-mono);font-size:.86em;color:var(--cyan);background:rgba(0,0,0,.4);padding:2px 6px;border-radius:5px}

/* =========================================================
   CTA BAND
   ========================================================= */
.cta{position:relative;padding:clamp(80px,11vw,140px) 0;overflow:hidden;text-align:center}
.cta__bg{
  position:absolute;inset:-40% -20%;z-index:0;pointer-events:none;
  background:
    radial-gradient(700px 360px at 50% 120%,rgba(109,94,246,.28),transparent 65%),
    radial-gradient(600px 320px at 20% -10%,rgba(55,214,229,.14),transparent 60%),
    radial-gradient(600px 320px at 80% -10%,rgba(177,92,255,.16),transparent 60%);
}
.cta__inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center}
.cta__title{
  font-family:var(--font-serif);font-style:normal;font-weight:400;
  font-size:clamp(2.6rem,6vw,4.6rem);letter-spacing:-.015em;margin-bottom:18px;color:var(--ink);
}
.cta__sub{color:var(--ink-2);font-size:clamp(1.02rem,1.5vw,1.2rem);max-width:570px;margin-bottom:34px}

/* =========================================================
   FOOTER
   ========================================================= */
.footer{border-top:1px solid var(--line);padding:64px 0 40px;background:var(--bg-2)}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid var(--line)}
.footer__brand .brand__word{font-size:1.12rem}
.footer__tag{color:var(--ink-3);font-size:.92rem;margin-top:16px;max-width:250px}
.footer__col h4{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:16px;font-weight:700;font-family:var(--font-sans)}
.footer__col a{display:block;color:var(--ink-2);font-size:.94rem;padding:6px 0;transition:color .2s}
.footer__col a:hover{color:var(--ink)}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;padding-top:28px;color:var(--ink-3);font-size:.86rem;flex-wrap:wrap;gap:10px}

/* =========================================================
   REVEAL
   ========================================================= */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}

@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important}
  html{scroll-behavior:auto}
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:1000px){
  .nav__links,.nav__actions{display:none}
  .nav__burger{display:block}
  .grid--3{grid-template-columns:1fr 1fr}
  .install{grid-template-columns:1fr 1fr}
  .roadmap{grid-template-columns:1fr 1fr}
  .dl{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .engine__hint{display:block}
}
@media (max-width:660px){
  .grid--3{grid-template-columns:1fr}
  .install{grid-template-columns:1fr}
  .roadmap{grid-template-columns:1fr}
  .fstep{gap:16px}
  .fstep__num span{width:44px;height:44px;font-size:1rem}
  .magic{flex-direction:column;gap:14px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer__brand{grid-column:1/-1}
  .hero__meta{gap:9px}
  .engine__legend{gap:14px;font-size:.78rem}
}