/* CYSTEMS — faithful replica of the OPTIMIND reel. Light grey, mono-grotesque, gold accent. */
:root{
  --bg:#e6e6e4;            /* light warm grey hero ground */
  --bg2:#efefed;
  --white:#fbfbfa;
  --ink:#141414;
  --ink-soft:#5b5b58;
  --ink-faint:#9a9a96;
  --line:rgba(20,20,20,.14);
  --gold:#c9922f;
  --gold-lit:#e9b45a;
  --sans:"Space Grotesk",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"Space Mono",ui-monospace,Menlo,monospace;
  --wrap:1320px;
  --ease:cubic-bezier(.16,1,.3,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--bg2);color:var(--ink);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.mono{font-family:var(--mono)}
.up{text-transform:uppercase}

/* ---------- NAV ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(230,230,228,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav__in{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-family:var(--sans);font-weight:700;letter-spacing:.12em;font-size:15px}
.nav__mid{display:flex;gap:34px}
.nav__mid a,.nav__end a{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--ink-soft);transition:color .3s}
.nav__mid a:hover,.nav__end a:hover{color:var(--gold)}
.nav__end{display:flex;gap:26px}
.nav__burger{display:none;font-family:var(--mono);font-size:11px;letter-spacing:.14em}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100vh;background:radial-gradient(120% 90% at 70% 20%,var(--bg2) 0%,var(--bg) 55%,#dcdcd9 100%);padding-top:60px;overflow:hidden}
.hero__marker{position:absolute;top:78px;left:32px;font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--ink-faint)}
.hero__dots{position:absolute;top:78px;right:32px;font-size:18px;letter-spacing:.15em;color:var(--ink-soft)}
.hero__top{position:relative;z-index:4;max-width:var(--wrap);margin:0 auto;padding:118px 32px 0;display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:start}
.hero__h1{font-weight:500;font-size:clamp(2.2rem,4.6vw,3.9rem);line-height:1.02;letter-spacing:-.01em}
.hero__h1 .swap{display:block;overflow:hidden}
.hero__lead{font-size:clamp(1rem,1.25vw,1.18rem);color:var(--ink-soft);max-width:42ch}
.hero__cta{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
.btn{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;padding:15px 30px;border-radius:40px;border:1px solid var(--ink);transition:.35s var(--ease);cursor:pointer;white-space:nowrap}
.btn--solid{background:var(--ink);color:var(--white);border-color:var(--ink)}
.btn--solid:hover{background:var(--gold);border-color:var(--gold)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}
.hero__note{position:absolute;left:32px;bottom:118px;z-index:4;font-family:var(--mono);font-size:11px;line-height:1.7;letter-spacing:.04em;color:var(--ink-soft);max-width:30ch}
/* hero media — the particle sphere rising from the bottom, feathered into the ground */
.hero__media{position:absolute;z-index:2;left:50%;bottom:-10%;transform:translateX(-50%);width:min(88vw,1040px);aspect-ratio:16/9;will-change:transform;
  -webkit-mask-image:radial-gradient(ellipse 66% 62% at 50% 52%, #000 46%, rgba(0,0,0,.35) 72%, transparent 88%);
  mask-image:radial-gradient(ellipse 66% 62% at 50% 52%, #000 46%, rgba(0,0,0,.35) 72%, transparent 88%)}
.hero__media video,.hero__media img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.hero__rings{position:absolute;z-index:1;left:50%;bottom:-4%;width:min(56vw,620px);aspect-ratio:1;transform:translateX(-50%);border-radius:50%;border:1px solid var(--line)}
.hero__rings::before,.hero__rings::after{content:"";position:absolute;inset:0;border-radius:50%;border:1px solid var(--line)}
.hero__rings::before{inset:12%}.hero__rings::after{inset:26%}
.hero__scroll{position:absolute;left:50%;bottom:30px;transform:translateX(-50%);z-index:5;width:22px;height:34px;border:1px solid var(--ink-soft);border-radius:12px;display:flex;justify-content:center;padding-top:6px}
.hero__scroll i{width:2px;height:7px;background:var(--ink-soft);border-radius:2px;animation:sd 1.6s var(--ease) infinite}
@keyframes sd{0%{opacity:0;transform:translateY(-3px)}40%{opacity:1}100%{opacity:0;transform:translateY(7px)}}
.hero__share{position:absolute;right:32px;bottom:30px;z-index:5;font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--ink-soft);display:flex;align-items:center;gap:8px}

/* ---------- SERVICES ---------- */
.svc{background:var(--white);padding:110px 0}
.svc__head{display:grid;grid-template-columns:1.1fr 1fr auto;gap:30px;align-items:start;margin-bottom:54px}
.svc__idx{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--ink-faint);grid-column:1/-1;margin-bottom:20px}
.svc__title{font-weight:500;font-size:clamp(1.8rem,3.4vw,2.7rem);line-height:1.04;text-transform:uppercase;letter-spacing:-.01em}
.svc__blurb{font-size:.95rem;color:var(--ink-soft);max-width:34ch;padding-top:6px}
.svc__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.card{background:var(--white);padding:38px 34px 44px;transition:background .4s}
.card:hover{background:#fdfdfc}
.card__ico{width:100%;aspect-ratio:1/.82;display:flex;align-items:center;justify-content:center;margin-bottom:22px}
.card__ico img{width:66%;height:auto;object-fit:contain;filter:drop-shadow(0 6px 18px rgba(201,146,47,.28));transition:transform .6s var(--ease)}
.card:hover .card__ico img{transform:scale(1.07)}
.card h3{font-weight:500;font-size:1.22rem;margin-bottom:12px}
.card p{font-size:.9rem;color:var(--ink-soft);line-height:1.6}

/* ---------- GENERIC SECTIONS ---------- */
.band{padding:110px 0}
.band--ink{background:var(--ink);color:var(--white)}
.band--ink .sec-idx,.band--ink .lead{color:rgba(255,255,255,.6)}
.sec-idx{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--ink-faint);margin-bottom:22px;display:block}
.sec-h{font-weight:500;font-size:clamp(1.7rem,3.2vw,2.6rem);line-height:1.06;text-transform:uppercase;letter-spacing:-.01em;max-width:20ch}
.lead{font-size:1.05rem;color:var(--ink-soft);max-width:60ch;margin-top:18px}
.rows{margin-top:46px;border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:70px 1fr 1.4fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);align-items:baseline}
.band--ink .row{border-color:rgba(255,255,255,.14)}
.row .n{font-family:var(--mono);font-size:11px;color:var(--gold);letter-spacing:.1em}
.row h4{font-weight:500;font-size:1.15rem;text-transform:uppercase;letter-spacing:.01em}
.row p{color:var(--ink-soft);font-size:.95rem}
.band--ink .row p{color:rgba(255,255,255,.55)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.stats{display:flex;gap:60px;margin-top:40px;flex-wrap:wrap}
.stat .n{font-family:var(--sans);font-weight:500;font-size:clamp(2.4rem,5vw,3.4rem);color:var(--ink)}
.band--ink .stat .n{color:#fff}
.stat .l{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint);margin-top:6px}

/* ---------- CTA + FOOTER ---------- */
.final{background:var(--ink);color:var(--white);text-align:center;padding:130px 0}
.final .sec-idx{color:rgba(255,255,255,.4)}
.final h2{font-weight:500;font-size:clamp(2rem,4.4vw,3.4rem);text-transform:uppercase;line-height:1.04;margin-bottom:30px}
.final .btn--solid{background:var(--gold);border-color:var(--gold);color:var(--ink)}
.final .btn--solid:hover{background:var(--gold-lit);border-color:var(--gold-lit)}
.foot{background:var(--ink);color:rgba(255,255,255,.6);border-top:1px solid rgba(255,255,255,.12);padding:40px 0}
.foot__in{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px;font-family:var(--mono);font-size:11px;letter-spacing:.1em}

/* ---------- REVEAL (safe: visible by default, JS only enhances) ---------- */
.js .anim{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js .anim.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js .anim{opacity:1;transform:none;transition:none}.hero__scroll i{animation:none}}

/* ---------- RESPONSIVE ---------- */
@media(max-width:860px){
  .nav__mid{display:none}.nav__end{display:none}.nav__burger{display:block}
  .hero__top{grid-template-columns:1fr;padding-top:96px;gap:22px}
  .hero__media{width:110vw;left:50%;transform:translateX(-50%);bottom:2%}
  .hero__rings{display:none}
  .hero__note{position:static;margin:30px 32px 0;max-width:none}
  .hero__lead{max-width:none}
  .svc__head{grid-template-columns:1fr}.svc__grid{grid-template-columns:1fr}
  .svc__blurb{max-width:none}
  .row{grid-template-columns:40px 1fr;gap:10px}.row p{grid-column:2}
  .two{grid-template-columns:1fr;gap:34px}
  .foot__in{flex-direction:column}
}