/* ===========================================================
   Sutertai — shared design system (dark, "Nebula": blue → indigo)
   Refined for high contrast + fail-safe text visibility.
   =========================================================== */

/* Smooth cross-fade between full page navigations (no SPA needed) — Chromium/Edge honor this,
   other browsers just ignore it and keep normal instant navigation. */
@view-transition{navigation:auto}

:root{
  /* dark — "Nebula": near-black ground with a blue→indigo/violet identity */
  --paper:#08080f;
  --paper-2:#0e0e1c;
  --surface:#14142a;
  --surface-2:#1b1b38;
  --ink:#f2f0ff;           /* soft near-white, faint violet cast */
  --muted:#a6a3c8;         /* violet-grey secondary */
  --faint:#6b6790;
  --line:rgba(120,110,255,.22);
  --line-soft:rgba(120,110,255,.11);
  --accent:#3b5bff;        /* nebula blue */
  --accent-ink:#9c8bff;    /* light indigo for text on dark */
  --accent-2:#6d5efc;      /* indigo secondary */
  --grad:linear-gradient(135deg,#3b5bff,#6d5efc);
  --on-accent:#ffffff;     /* white text on the accent/gradient */
  --good:#3ecf8e;
  --maxw:1320px;
  --r:4px;
}
:root[data-theme="dark"]{
  --paper:#08080f; --paper-2:#0e0e1c; --surface:#14142a; --surface-2:#1b1b38;
  --ink:#f2f0ff; --muted:#a6a3c8; --faint:#6b6790;
  --line:rgba(120,110,255,.22); --line-soft:rgba(120,110,255,.11);
  --accent:#3b5bff; --accent-ink:#9c8bff; --accent-2:#6d5efc;
  --grad:linear-gradient(135deg,#3b5bff,#6d5efc); --on-accent:#ffffff; --good:#3ecf8e;
}
:root[data-theme="light"]{
  --paper:#f4f4fb; --paper-2:#fafaff; --surface:#ffffff; --surface-2:#f0f0fb;
  --ink:#12122a; --muted:#54517a; --faint:#8b88ad;
  --line:rgba(90,80,220,.16); --line-soft:rgba(90,80,220,.08);
  --accent:#3b3bef; --accent-ink:#4a3bd0; --accent-2:#6d5efc;
  --grad:linear-gradient(135deg,#3b5bff,#6d5efc); --on-accent:#ffffff; --good:#1f9d63;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--paper);color:var(--ink);
  font-family:'Inter',system-ui,sans-serif;line-height:1.62;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px}
@media(max-width:560px){.wrap{padding:0 22px}}
.serif{font-family:'Fraunces',Georgia,serif;font-weight:400}
.ital{font-style:italic}
.accent{color:var(--accent-ink)}
.label{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-ink);font-weight:500}
.muted{color:var(--muted)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

/* ---------- AMBIENT GRAIN (ties the page to the diffusion/denoise motif) ---------- */
body{position:relative}
body::before{
  content:"";position:fixed;inset:0;z-index:9999;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='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- NAV ---------- */
/* Floating glass pill — the bar detaches from the page edge and content blurs behind it.
   The <header> itself is a transparent sticky shell, so pointer-events are handed back
   only to the pill and the dropdown; the empty gutters beside them stay click-through. */
header{position:sticky;top:0;z-index:60;padding:14px 0;background:transparent;pointer-events:none}
header .wrap{position:relative}
.nav{pointer-events:auto;display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px;padding:0 12px 0 24px;
  border:1px solid var(--line);border-radius:999px;
  background:color-mix(in srgb,var(--surface) 66%,transparent);
  -webkit-backdrop-filter:blur(20px) saturate(1.6);backdrop-filter:blur(20px) saturate(1.6);
  box-shadow:0 20px 46px -26px rgba(0,0,0,.9),inset 0 1px 0 color-mix(in srgb,#fff 7%,transparent)}
.nav .btn{border-radius:999px}
.brand{display:flex;align-items:center;gap:12px;font-family:'Fraunces',serif;font-weight:500;font-size:23px;letter-spacing:-.01em;color:var(--ink)}
.brand .ai{color:var(--accent-ink)}
.mark{width:22px;height:30px;background:url("assets/mark-s.png") center/contain no-repeat;filter:drop-shadow(0 0 6px color-mix(in srgb,var(--accent) 55%,transparent))}
.mark:after{content:none}
.nav-links{display:flex;gap:36px;font-size:14px}
.nav-links a{color:var(--muted);transition:color .18s}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-cta{display:flex;align-items:center;gap:20px}
.btn{font-size:14px;font-weight:500;padding:11px 22px;border-radius:var(--r);border:1px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap;display:inline-block;text-align:center}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent);color:var(--on-accent)}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-accent{background:var(--grad);color:var(--on-accent)}
.btn-accent:hover{filter:brightness(1.08);color:var(--on-accent)}
.btn-lg{padding:15px 32px;font-size:15px}
.btn-block{display:block;width:100%}
.hamburger{display:none;flex-direction:column;gap:4px;width:40px;height:38px;align-items:center;justify-content:center;background:transparent;border:none;border-radius:11px;cursor:pointer;padding:0;flex:0 0 auto;transition:background .18s}
.hamburger:hover{background:color-mix(in srgb,var(--ink) 8%,transparent)}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s,opacity .25s}
.hamburger.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
/* Dropdown panel — a second glass card floating under the pill, same width as it. */
.mobile-menu{display:none;position:absolute;top:calc(100% + 10px);left:0;right:0;z-index:5;pointer-events:auto;
  flex-direction:column;padding:10px;
  border:1px solid var(--line);border-radius:22px;
  background:color-mix(in srgb,var(--surface) 74%,transparent);
  -webkit-backdrop-filter:blur(24px) saturate(1.5);backdrop-filter:blur(24px) saturate(1.5);
  box-shadow:0 30px 64px -30px rgba(0,0,0,.92),inset 0 1px 0 color-mix(in srgb,#fff 7%,transparent)}
.mobile-menu.open{display:flex;animation:menuIn .22s cubic-bezier(.2,.7,.2,1)}
@keyframes menuIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.mobile-menu.open{animation:none}}
.mobile-menu a{padding:14px 16px;border-radius:13px;color:var(--muted);font-size:15.5px;transition:background .18s,color .18s}
.mobile-menu a:hover{background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--ink)}
.mobile-menu a:last-child{color:var(--ink);font-weight:600}
/* 960px, not 860: with six nav links the bar needs 938px of room, so it has to
   collapse to the hamburger before the pill starts overflowing. */
@media(max-width:960px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .nav-cta .btn-ghost{display:none}
  .nav-cta{gap:12px}
  .nav-cta .btn-primary{padding:10px 15px;font-size:13.5px}
  .brand{font-size:20px}
}
@media(max-width:560px){.mobile-menu{padding:8px 22px 18px}}

/* ---------- SECTION HELPERS ---------- */
section.pad{padding:104px 0}
@media(max-width:640px){section.pad{padding:56px 0}}
.eyebrow{display:inline-flex;align-items:center;gap:10px;margin-bottom:22px}
.eyebrow .rule{width:34px;height:1px;background:var(--line)}
.sec-title{font-size:clamp(32px,4.6vw,58px);line-height:1.04;letter-spacing:-.02em;max-width:18ch;margin-top:16px;text-wrap:balance;color:var(--ink)}
.lead{color:var(--muted);font-size:17px;max-width:56ch;margin-top:20px;text-wrap:balance}

/* ---------- INTERIOR PAGE HERO ---------- */
.page-hero{padding:54px 0 40px;position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(620px 340px at 30% -20%,color-mix(in srgb,var(--accent) 26%,transparent),transparent 60%),
            radial-gradient(520px 360px at 90% 0%,color-mix(in srgb,var(--accent-2) 18%,transparent),transparent 60%)}
.page-title{font-size:clamp(40px,6vw,76px);line-height:1;letter-spacing:-.025em;max-width:16ch;text-wrap:balance;color:var(--ink)}
.page-title .ital{color:var(--accent-ink)}

/* ---------- CTA (final banner before footer, all pages) ---------- */
.cta-wrap{padding:0 0 104px}
.cta-card{
  text-align:center;position:relative;overflow:hidden;isolation:isolate;
  padding:96px 40px;border-radius:28px;background:var(--grad);
  transform:translateY(84px);opacity:0;
  transition:transform 1s cubic-bezier(.16,1,.3,1),opacity 1s ease;
}
.cta-card.in-view{transform:translateY(0);opacity:1}
.cta-card::after{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(120% 140% at 50% 120%,rgba(255,255,255,.18),transparent 60%)}
.cta-card h2{font-size:clamp(34px,5.6vw,64px);line-height:1.05;letter-spacing:-.02em;max-width:19ch;margin:0 auto 40px;text-wrap:balance;color:#fff;min-height:1.05em}
.cta-card h2.typing::after{content:"";display:inline-block;width:.05em;height:.85em;margin-left:.05em;background:#fff;vertical-align:-.08em;animation:ctaCaret .85s step-end infinite}
@keyframes ctaCaret{50%{opacity:0}}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.cta-actions .btn-white{background:#fff;color:var(--accent-2);border-radius:999px;font-weight:600}
.cta-actions .btn-white:hover{filter:brightness(.96)}
.cta-actions .btn-outline-cta{border:1px solid rgba(255,255,255,.4);background:color-mix(in srgb,#fff 12%,transparent);color:#fff;border-radius:999px}
.cta-actions .btn-outline-cta:hover{background:color-mix(in srgb,#fff 20%,transparent)}
@media(max-width:560px){.cta-card{padding:64px 26px;border-radius:20px}}
@media(prefers-reduced-motion:reduce){.cta-card{transform:none;opacity:1;transition:none}}

/* ---------- FOOTER ---------- */
footer{border-top:1px solid var(--line);padding:64px 0 30px;font-size:14px;overflow:hidden}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;align-items:start}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr;gap:34px}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr;gap:28px}}
.foot-brand{max-width:38ch}
.foot-brand p{color:var(--muted);font-size:14.5px;margin-top:16px;line-height:1.7;max-width:34ch}
.foot-col h4{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:18px}
.foot-col a{display:block;color:var(--muted);margin-bottom:12px;transition:color .18s;font-size:15px}
.foot-col a:hover{color:var(--ink)}
.foot-reach a{color:var(--ink);font-weight:500}
.foot-reach a:hover{color:var(--accent-ink)}
.foot-reach address{font-style:normal;color:var(--muted);font-size:14px;line-height:1.7;margin-top:6px}
.foot-bottom{margin-top:48px;padding:22px 0 6px;border-top:1px solid var(--line-soft);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--faint);font-size:13px}
.foot-bottom-links{display:flex;gap:24px}
.foot-bottom-links a{color:var(--faint);transition:color .18s}
.foot-bottom-links a:hover{color:var(--ink)}
.foot-social{color:var(--faint);display:flex;gap:9px;flex-wrap:wrap;align-items:center}
.foot-social a{color:var(--faint);transition:color .18s}
.foot-social a:hover{color:var(--ink)}
.foot-word{font-weight:600;text-transform:uppercase;letter-spacing:-.045em;font-size:clamp(58px,18.5vw,240px);line-height:.82;color:var(--ink);white-space:nowrap;text-align:center;margin-top:20px;user-select:none;pointer-events:none}
.foot-word span{color:var(--accent-ink)}

/* ---------- MARQUEE ---------- */
.marquee{position:relative;width:100%;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent);mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent)}
.track{display:flex;gap:22px;width:max-content;animation:scroll 124s linear infinite}
.marquee:hover .track{animation-play-state:paused}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.plate{position:relative;flex:0 0 auto;width:clamp(240px,30vw,470px);aspect-ratio:2/3;border-radius:3px;overflow:hidden;background:var(--surface);border:1px solid var(--line-soft)}
.plate img{width:100%;height:100%;object-fit:cover}
.plate figcaption{position:absolute;left:0;right:0;bottom:0;padding:28px 18px 15px;font-size:12px;color:#fff;background:linear-gradient(to top,rgba(0,0,0,.66),transparent);font-style:italic;font-family:'Fraunces',serif}
@media (prefers-reduced-motion:reduce){.track{animation:none}.marquee{overflow-x:auto}}

/* ---------- CARD ---------- */
.card{background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--r);transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--line)}

/* ---------- HERO ENTRANCE (fail-safe: text is visible by default) ---------- */
@media (prefers-reduced-motion:no-preference){
  .hero > .wrap > *,
  .page-hero > .wrap > *{
    animation:heroRise .8s cubic-bezier(.2,.7,.2,1) both;
  }
  .hero > .wrap > *:nth-child(1),.page-hero > .wrap > *:nth-child(1){animation-delay:.05s}
  .hero > .wrap > *:nth-child(2),.page-hero > .wrap > *:nth-child(2){animation-delay:.16s}
  .hero > .wrap > *:nth-child(3),.page-hero > .wrap > *:nth-child(3){animation-delay:.28s}
  .hero > .wrap > *:nth-child(4),.page-hero > .wrap > *:nth-child(4){animation-delay:.40s}
  .hero > .wrap > *:nth-child(5),.page-hero > .wrap > *:nth-child(5){animation-delay:.52s}
  .hero:before{animation:glowIn 1.4s ease both}
}
/* transform-only: text is always fully opaque, just eases up on load */
@keyframes heroRise{from{transform:translateY(16px)}to{transform:translateY(0)}}

/* ---------- SMOOTH REVEAL (scroll-in for content sections) ----------
   Gated behind html.js (set in nav.js the moment JS runs) so a JS failure
   never leaves content stuck invisible — without .js, .reveal is inert
   and elements render at their normal, fully-visible layout. */
html.js .reveal{
  opacity:0;
  transform:translateY(26px);
  transition:opacity .7s ease,transform .8s cubic-bezier(.2,.7,.2,1);
}
html.js .reveal.in{opacity:1;transform:translateY(0)}
@media(prefers-reduced-motion:reduce){
  html.js .reveal{opacity:1;transform:none;transition:none}
}
@keyframes glowIn{from{opacity:0}to{opacity:1}}