/* =========================================================
   ASTERIAL STUDIO — DESIGN SYSTEM
   Dark · glassmorphism · aurora accents · editorial type
   ========================================================= */

:root{
  /* palette */
  --ink:#06070d;            /* near-black base */
  --ink-2:#0c0e18;          /* raised surfaces */
  --ink-3:#13162400;        /* transparent helper */
  --paper:#f4f4fb;          /* primary text */
  --muted:#9aa0b8;          /* secondary text */
  --line:rgba(255,255,255,.09);
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.07);

  /* aurora accents */
  --a1:#7c5cff;             /* violet */
  --a2:#22d3ee;             /* cyan */
  --a3:#ff5c8a;             /* pink */
  --grad:linear-gradient(120deg,var(--a1),var(--a2) 55%,var(--a3));

  /* type */
  --display:"Clash Display","Space Grotesk",system-ui,sans-serif;
  --body:"Inter",system-ui,-apple-system,sans-serif;

  /* metrics */
  --r:18px;
  --r-lg:28px;
  --wrap:1200px;
  --pad:clamp(20px,5vw,64px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* ambient aurora background */
body::before{
  content:"";
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(60vw 50vh at 12% -5%, rgba(124,92,255,.22), transparent 60%),
    radial-gradient(55vw 50vh at 95% 8%, rgba(34,211,238,.16), transparent 60%),
    radial-gradient(70vw 60vh at 50% 110%, rgba(255,92,138,.14), transparent 60%);
  pointer-events:none;
}
body::after{ /* subtle grain */
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%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");
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--pad)}
section{padding-block:clamp(64px,9vw,120px)}

/* ---------- typography ---------- */
h1,h2,h3,h4{font-family:var(--display);font-weight:600;line-height:1.04;letter-spacing:-.02em}
.h-xl{font-size:clamp(2.6rem,7vw,5.4rem)}
.h-lg{font-size:clamp(2rem,4.5vw,3.4rem)}
.h-md{font-size:clamp(1.5rem,3vw,2.2rem)}
.eyebrow{
  font-family:var(--body);font-weight:600;font-size:.78rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--a2);display:inline-flex;align-items:center;gap:.6em;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--grad)}
.lede{color:var(--muted);font-size:clamp(1rem,1.6vw,1.18rem);max-width:60ch}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- buttons ---------- */
.btn{
  --bg:var(--glass-2);
  display:inline-flex;align-items:center;gap:.6em;
  padding:.9em 1.5em;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1px solid var(--line);background:var(--bg);
  transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s,background .25s;
  will-change:transform;cursor:pointer;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{
  background:var(--grad);color:#0a0a12;border:none;
  box-shadow:0 8px 30px -8px rgba(124,92,255,.6);
}
.btn-primary:hover{box-shadow:0 14px 40px -8px rgba(124,92,255,.8)}
.btn-ghost:hover{background:var(--glass-2);border-color:rgba(255,255,255,.2)}
.btn .arr{transition:transform .25s}
.btn:hover .arr{transform:translateX(3px)}

/* ---------- glass cards ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  position:relative;overflow:hidden;
}
.glass::after{ /* top hairline sheen */
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.08),transparent 30%);
}

/* ---------- header ---------- */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:50;
  transition:background .3s,border-color .3s,backdrop-filter .3s;
  border-bottom:1px solid transparent;
}
.site-head.scrolled{
  background:rgba(6,7,13,.7);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:1.5rem}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--display);font-weight:600;font-size:1.15rem}
.brand .mark{width:30px;height:30px;flex:none}
.nav-links{display:flex;align-items:center;gap:.3rem;list-style:none}
.nav-links a{padding:.5em .85em;border-radius:999px;font-size:.92rem;color:var(--muted);transition:color .2s,background .2s}
.nav-links a:hover,.nav-links a.active{color:var(--paper);background:var(--glass)}
.has-sub{position:relative}
.submenu{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(8px);
  width:min(620px,90vw);padding:14px;display:grid;grid-template-columns:1fr 1fr;gap:4px;
  opacity:0;visibility:hidden;transition:.25s;
}
.has-sub:hover .submenu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.submenu a{display:flex;flex-direction:column;gap:2px;padding:.6em .8em;border-radius:14px;color:var(--paper)}
.submenu a small{color:var(--muted);font-size:.78rem;font-weight:400}
.submenu a:hover{background:var(--glass-2)}
.nav-cta{margin-left:.3rem}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--glass);align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}
.burger span{width:18px;height:2px;background:var(--paper);transition:.3s}

/* mobile nav */
.mnav{position:fixed;inset:0;z-index:49;background:rgba(6,7,13,.96);backdrop-filter:blur(20px);padding:90px var(--pad) 40px;transform:translateY(-100%);transition:transform .4s cubic-bezier(.2,.8,.2,1);overflow-y:auto}
.mnav.open{transform:translateY(0)}
.mnav a{display:block;padding:.7em 0;font-family:var(--display);font-size:1.6rem;border-bottom:1px solid var(--line)}
.mnav .sub-label{color:var(--a2);font-size:.8rem;letter-spacing:.2em;text-transform:uppercase;margin-top:1.4rem;font-family:var(--body)}
.mnav .sub-grid a{font-size:1rem;border:none;padding:.45em 0;color:var(--muted)}

/* ---------- hero ---------- */
.hero{padding-top:160px;position:relative}
.hero-grid{display:grid;gap:48px}
.hero h1{margin:.4em 0 .5em}
.hero .lede{margin-bottom:2rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center}
.float-mark{position:absolute;right:var(--pad);top:120px;width:clamp(120px,18vw,240px);opacity:.9;animation:spin 36s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- stat counters ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:60px}
.stat{padding:24px}
.stat .num{font-family:var(--display);font-size:clamp(2rem,4vw,3rem);font-weight:600}
.stat .lbl{color:var(--muted);font-size:.9rem;margin-top:.3em}

/* ---------- service grid ---------- */
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.svc-card{padding:26px;display:flex;flex-direction:column;gap:14px;transition:transform .3s,border-color .3s}
.svc-card:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.4)}
.svc-ic{width:52px;height:52px;border-radius:14px;background:var(--glass-2);display:grid;place-items:center;border:1px solid var(--line)}
.svc-ic svg{width:26px;height:26px;stroke:url(#agrad);stroke-width:1.6;fill:none}
.svc-card h3{font-size:1.25rem}
.svc-card p{color:var(--muted);font-size:.95rem;flex:1}
.svc-card .more{font-size:.88rem;color:var(--a2);display:inline-flex;gap:.4em;align-items:center;font-weight:600}

/* ---------- section heads ---------- */
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head h2{margin:.5rem 0}
.center{margin-inline:auto;text-align:center}
.center .eyebrow{justify-content:center}

/* ---------- process ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:s}
.step{padding:24px;position:relative}
.step .n{font-family:var(--display);font-size:2.2rem;font-weight:600;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.step h4{margin:.3em 0;font-size:1.1rem}
.step p{color:var(--muted);font-size:.9rem}

/* ---------- why ---------- */
.why-card{padding:28px}
.why-card h3{font-size:1.2rem;margin-bottom:.4em}
.why-card p{color:var(--muted);font-size:.95rem}
.why-card .dot{width:10px;height:10px;border-radius:50%;background:var(--grad);margin-bottom:18px}

/* ---------- tools marquee ---------- */
.marquee{overflow:hidden;mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee-track{display:flex;gap:18px;width:max-content;animation:slide 28s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes slide{to{transform:translateX(-50%)}}
.tool-chip{display:flex;align-items:center;gap:.6em;padding:.8em 1.4em;border-radius:999px;background:var(--glass);border:1px solid var(--line);font-weight:600;white-space:nowrap;color:var(--paper)}
.tool-chip .d{width:8px;height:8px;border-radius:50%;background:var(--grad)}

/* ---------- portfolio ---------- */
.tabs{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:28px}
.tab{padding:.6em 1.2em;border-radius:999px;border:1px solid var(--line);background:var(--glass);color:var(--muted);cursor:pointer;font-weight:600;font-size:.9rem;transition:.25s}
.tab.active{background:var(--grad);color:#0a0a12;border:none}
.work-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.work{aspect-ratio:4/5;border-radius:var(--r);overflow:hidden;position:relative;border:1px solid var(--line)}
.work .ph{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--display);color:var(--muted);font-size:.8rem;text-align:center;padding:10px}
.work::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:.10;mix-blend-mode:screen}

/* ---------- CTA band ---------- */
.cta-band{padding:clamp(40px,6vw,72px);text-align:center}
.cta-band h2{margin-bottom:.4em}
.cta-band .lede{margin:0 auto 2rem}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--line);padding-block:64px 28px;margin-top:40px;position:relative}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.foot-grid h4{font-family:var(--body);font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-bottom:1.2em}
.foot-grid ul{list-style:none;display:flex;flex-direction:column;gap:.6em}
.foot-grid a{color:var(--muted);font-size:.95rem;transition:color .2s}
.foot-grid a:hover{color:var(--paper)}
.foot-brand .brand{margin-bottom:1rem}
.foot-brand p{color:var(--muted);max-width:34ch}
.socials{display:flex;gap:.6rem;margin-top:1.4rem}
.socials a{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--glass);display:grid;place-items:center;transition:.25s}
.socials a:hover{background:var(--glass-2);transform:translateY(-2px)}
.foot-bottom{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-top:48px;padding-top:24px;border-top:1px solid var(--line);color:var(--muted);font-size:.85rem}

/* ---------- forms ---------- */
.form{display:grid;gap:16px}
.field{display:flex;flex-direction:column;gap:.5em}
.field label{font-size:.85rem;color:var(--muted);font-weight:600}
.field input,.field textarea,.field select{
  padding:.9em 1.1em;border-radius:14px;border:1px solid var(--line);
  background:var(--glass);color:var(--paper);font-family:inherit;font-size:1rem;transition:border-color .2s,background .2s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--a1);background:var(--glass-2)}
.field textarea{resize:vertical;min-height:130px}
.notice{padding:1em 1.2em;border-radius:14px;border:1px solid var(--line);font-size:.95rem}
.notice.ok{border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.08)}
.notice.err{border-color:rgba(255,92,138,.4);background:rgba(255,92,138,.08)}

/* ---------- prose (legal/blog) ---------- */
.prose{max-width:760px}
.prose h2{margin:1.6em 0 .5em;font-size:1.6rem}
.prose h3{margin:1.3em 0 .4em;font-size:1.2rem}
.prose p,.prose li{color:var(--muted);margin-bottom:1em}
.prose ul,.prose ol{padding-left:1.3em;margin-bottom:1em}
.prose a{color:var(--a2);text-decoration:underline;text-underline-offset:3px}

/* ---------- blog cards ---------- */
.post{padding:24px;display:flex;flex-direction:column;gap:12px;transition:transform .3s}
.post:hover{transform:translateY(-4px)}
.post .tag{font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--a2);font-weight:600}
.post h3{font-size:1.3rem}
.post p{color:var(--muted);font-size:.95rem;flex:1}
.post .meta{color:var(--muted);font-size:.82rem}

/* ---------- page hero (inner) ---------- */
.page-hero{padding-top:150px;padding-bottom:20px}
.crumbs{display:flex;gap:.5em;color:var(--muted);font-size:.85rem;margin-bottom:1.4rem}
.crumbs a:hover{color:var(--paper)}

/* ---------- reveal animation ---------- */
[data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .work-grid{grid-template-columns:repeat(3,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:820px){
  .nav-links,.nav-cta{display:none}
  .burger{display:flex}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .work-grid{grid-template-columns:repeat(2,1fr)}
  .float-mark{display:none}
}
@media(max-width:560px){
  .grid-4{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  .work-grid{grid-template-columns:1fr 1fr}
  .foot-bottom{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1;transform:none}
}