/* ============================================================
   obalaban — editorial / dev-tool dark prototype
   Typography-led. No imagery. Indigo is accent-only.
   ============================================================ */

:root{
  --ink:#0B0B0F;
  --surface:#15151C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#EAEAE2;
  --muted:#8A8A99;
  --accent:#7C5CFF;
  --accent-strong:#6D4DE6; /* filled-button surface only — white text clears WCAG AA (5.45:1) */
  --accent-weak:rgba(124,92,255,.14);
  --accent-hover:#FFC857;          /* warm gold — hover / focus only */
  --accent-hover-weak:rgba(255,200,87,.13);

  --max:1240px;
  --pad:clamp(20px,5vw,64px);
  --ease:cubic-bezier(.2,.8,.2,1);

  --font-display:"Clash Display","Satoshi",system-ui,-apple-system,sans-serif;
  --font-body:"Satoshi",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html.no-scroll{overflow:hidden}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}

body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

::selection{background:var(--accent);color:#fff}

a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;color:var(--text);-webkit-text-fill-color:var(--text);font-weight:600;font-family:var(--font-display);letter-spacing:-.02em}
p{margin:0}
ol,ul{margin:0;padding:0;list-style:none}

:focus-visible{outline:2px solid var(--accent-hover);outline-offset:3px;border-radius:4px}

/* Skip link */
.skip{
  position:fixed;left:16px;top:-60px;z-index:200;
  background:var(--accent);color:#fff;padding:10px 16px;border-radius:8px;
  font-family:var(--font-mono);font-size:13px;transition:top .2s var(--ease);
}
.skip:focus{top:16px}
.skip:hover{color:#fff}

/* Mono utility */
.mono{font-family:var(--font-mono);font-feature-settings:"tnum" 1}

/* ---------- Reveal animation (progressive enhancement) ---------- */
.js .reveal{opacity:0;transform:translateY(20px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  transition-delay:var(--d,0s);will-change:opacity,transform}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1!important;transform:none!important;transition:none!important}
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--ink) 70%,transparent);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:border-color .3s,background .3s;
}
.site-header.scrolled{border-bottom-color:var(--line);background:color-mix(in srgb,var(--ink) 86%,transparent)}
.nav{
  max-width:var(--max);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px var(--pad);
}
.wordmark{
  font-family:var(--font-display);font-weight:600;font-size:clamp(35px,4vw,40px);letter-spacing:-.01em;
  color:var(--text);display:inline-flex;align-items:center;
}
.wordmark .c{color:var(--accent);margin:0 -.02em}
.wordmark:hover,.wordmark:focus-visible{color:var(--accent-hover)}
.wordmark:hover .c,.wordmark:focus-visible .c{color:var(--accent-hover)}
.nav-links{display:flex;align-items:center;gap:clamp(20px,2.2vw,30px)}
.nav-links a{
  font-family:var(--font-mono);font-size:17px;letter-spacing:-.02em;color:var(--muted);
  position:relative;padding:6px 0;transition:color .22s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;
  background:var(--accent-hover);transition:right .28s var(--ease);
}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--accent-hover)}
.nav-links a:hover::after{right:0}

.menu-btn{
  display:none;align-items:center;gap:9px;background:none;border:0;cursor:pointer;
  color:var(--text);font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  text-transform:uppercase;padding:8px;
}
.menu-btn .bars{display:inline-flex;flex-direction:column;gap:4px;width:20px}
.menu-btn .bars i{height:1.5px;background:var(--text);display:block;transition:.25s var(--ease)}
.menu-btn .bars i:nth-child(1){width:20px}
.menu-btn .bars i:nth-child(2){width:13px}

/* ---------- Mobile menu (designed, full-screen) ---------- */
.mobile-menu{
  position:fixed;inset:0;z-index:120;background:var(--ink);
  display:flex;flex-direction:column;
  padding:22px var(--pad) calc(28px + env(safe-area-inset-bottom));
  opacity:0;visibility:hidden;transform:translateY(-12px);
  transition:opacity .35s var(--ease),transform .45s var(--ease),visibility .35s;
}
.mobile-menu.open{opacity:1;visibility:visible;transform:none}
.mobile-menu__top{display:flex;align-items:center;justify-content:space-between}
.menu-close{
  background:none;border:0;color:var(--text);cursor:pointer;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  display:inline-flex;align-items:center;gap:8px;padding:8px;
}
.mobile-menu nav{margin-top:clamp(48px,10vh,96px)}
.mobile-menu ol{display:flex;flex-direction:column;gap:6px}
.mobile-menu a{
  display:flex;align-items:baseline;gap:13px;padding:9px 0;
  font-family:var(--font-display);font-weight:500;font-size:24px;
  letter-spacing:-.02em;color:var(--text);
}
.mobile-menu a .idx{font-family:var(--font-mono);font-size:11px;color:var(--muted);font-weight:400;min-width:24px}
.mobile-menu a:active{color:var(--accent)}
.mobile-menu a:hover,.mobile-menu a:focus-visible{color:var(--accent-hover)}
.mobile-menu__foot{
  display:flex;justify-content:space-between;align-items:center;
  font-family:var(--font-mono);font-size:12px;color:var(--muted);
  border-top:1px solid var(--line);padding-top:18px;margin-top:auto;
}
.mobile-menu__foot .accent{color:var(--accent)}

/* ============================================================
   FRAME (editorial column with hairline side rules)
   ============================================================ */
main{
  max-width:var(--max);margin:0 auto;
  border-left:1px solid var(--line);border-right:1px solid var(--line);
}
.section{padding:clamp(64px,9vw,120px) var(--pad);border-bottom:1px solid var(--line)}

.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);
}
.kicker b{color:var(--accent);font-weight:500}
.h2{font-size:clamp(28px,4.6vw,50px);line-height:1.05;margin-top:18px;max-width:20ch}
.lead{color:var(--muted);max-width:60ch;margin-top:18px;font-size:clamp(15px,1.6vw,18px)}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  padding:clamp(44px,8vh,92px) var(--pad) clamp(60px,10vh,116px)}
.hero__bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero__grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(to right,var(--line) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line) 1px,transparent 1px);
  background-size:clamp(48px,7vw,76px) clamp(48px,7vw,76px);
  opacity:.55;
  -webkit-mask-image:radial-gradient(125% 85% at 50% -5%,#000 28%,transparent 72%);
  mask-image:radial-gradient(125% 85% at 50% -5%,#000 28%,transparent 72%);
}
.hero__glow{
  position:absolute;top:-26%;right:-12%;
  width:64vw;height:64vw;max-width:880px;max-height:880px;
  background:radial-gradient(circle at center,rgba(124,92,255,.18),transparent 60%);
  filter:blur(8px);
}
.hero__inner{position:relative;z-index:1;max-width:var(--max);margin:0 auto}
.eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  font-family:var(--font-mono);font-size:clamp(11px,1.3vw,13px);letter-spacing:.22em;
  text-transform:uppercase;color:var(--muted);
}
.eyebrow::before{content:"";width:7px;height:7px;background:var(--accent);
  box-shadow:0 0 14px var(--accent);flex:none}
.hero h1{
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(2.55rem,6.6vw,5.3rem);line-height:1.02;letter-spacing:-.025em;
  margin-top:26px;max-width:17ch;
}
.hero h1 .u{
  background-image:linear-gradient(var(--accent),var(--accent));
  background-size:100% 2px;background-position:0 100%;background-repeat:no-repeat;
  padding-bottom:.04em;
}
.hero__sub{color:var(--muted);font-size:clamp(16px,1.9vw,20px);line-height:1.55;
  max-width:54ch;margin-top:28px}
.hero__sub b{color:var(--text);font-weight:500}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-body);font-size:15px;font-weight:500;
  padding:14px 24px;border-radius:11px;border:1px solid transparent;cursor:pointer;
  transition:transform .16s var(--ease),background .22s,border-color .22s,box-shadow .25s;
}
.btn .ar{transition:transform .25s var(--ease)}
.btn:hover .ar{transform:translateX(4px)}
.btn--primary{background:var(--accent-strong);color:#fff}
.btn--primary:hover,.btn--primary:focus-visible{color:#fff;transform:translateY(-2px);box-shadow:0 12px 34px rgba(124,92,255,.34)}
.btn--ghost{border-color:var(--line-strong);color:var(--text)}
.btn--ghost:hover,.btn--ghost:focus-visible{color:var(--text);border-color:var(--accent-hover);background:rgba(255,255,255,.04)}

/* Hero meta footnote */
.hero__meta{display:flex;flex-wrap:wrap;gap:8px 26px;margin-top:46px;
  font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em}
.hero__meta span{display:inline-flex;align-items:center;gap:8px}
.hero__meta i{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}

/* ============================================================
   WHAT WE BUILD — editorial numbered ledger
   ============================================================ */
.build{margin-top:clamp(40px,5vw,64px)}
.build-row{
  position:relative;isolation:isolate;
  display:grid;grid-template-columns:auto 1fr;gap:clamp(16px,3vw,44px);
  align-items:start;padding:clamp(22px,3vw,34px) clamp(8px,1.5vw,20px);
  border-top:1px solid var(--line);
}
.build-row:last-child{border-bottom:1px solid var(--line)}
.build-row::before{
  content:"";position:absolute;inset:0;z-index:-1;border-radius:6px;opacity:0;
  background:radial-gradient(280px circle at var(--mx,50%) var(--my,50%),var(--accent-hover-weak),transparent 72%);
  transition:opacity .35s var(--ease);
}
.build-row:hover::before,.build-row:focus-within::before{opacity:1}
.build-row .num{font-family:var(--font-mono);font-size:14px;color:var(--muted);
  padding-top:.45em;transition:color .3s var(--ease)}
.build-row:hover .num{color:var(--accent-hover)}
.build-row__body{
  display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:clamp(10px,2.4vw,40px);align-items:baseline;
}
.build-row h3{font-size:clamp(20px,2.4vw,29px);line-height:1.1;
  transition:transform .3s var(--ease)}
.build-row:hover h3{transform:translateX(6px)}
.build-row p{color:var(--muted);font-size:clamp(14px,1.45vw,16px);max-width:46ch}
.build-row .ar{
  position:absolute;top:clamp(22px,3vw,34px);right:clamp(8px,1.5vw,20px);
  color:var(--accent-hover);opacity:0;transform:translateX(-10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease);font-family:var(--font-mono);
}
.build-row:hover .ar{opacity:1;transform:none}

/* ============================================================
   HOW WE WORK — 3 principles
   ============================================================ */
.principles{display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:clamp(40px,5vw,60px);border-top:1px solid var(--line)}
.principle{padding:clamp(28px,3vw,40px) clamp(20px,2.5vw,34px);border-left:1px solid var(--line)}
.principle:first-child{border-left:0;padding-left:clamp(8px,1.5vw,16px)}
.principle .pidx{font-family:var(--font-mono);font-size:13px;color:var(--accent)}
.principle h3{font-size:clamp(19px,2vw,24px);margin-top:16px}
.principle p{color:var(--muted);margin-top:12px;font-size:15px}

/* ============================================================
   POSITIONING STRIP
   ============================================================ */
.positioning{background:var(--surface);border-bottom:1px solid var(--line);
  padding:clamp(56px,8vw,104px) var(--pad)}
.positioning__inner{max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:minmax(0,.34fr) minmax(0,.66fr);gap:clamp(24px,4vw,56px)}
.positioning blockquote{margin:0;font-family:var(--font-display);font-weight:400;
  font-size:clamp(22px,2.9vw,36px);line-height:1.32;letter-spacing:-.015em;color:var(--text)}
.positioning blockquote .hold{color:var(--text);font-weight:600;
  border-bottom:2px solid var(--accent)}
.positioning blockquote .dim{color:var(--muted)}
.positioning__sig{font-family:var(--font-mono);font-size:12px;color:var(--muted);
  letter-spacing:.06em;margin-top:30px;display:flex;align-items:center;gap:10px}
.positioning__sig b{color:var(--accent);font-weight:500}

/* ============================================================
   STATS — mono, count-up
   ============================================================ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:clamp(40px,5vw,60px);border-top:1px solid var(--line)}
.stat{padding:clamp(28px,3.4vw,44px) clamp(16px,2vw,28px);border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:clamp(8px,1.5vw,16px)}
.stat__num{display:flex;align-items:baseline;font-family:var(--font-mono);font-weight:500;
  font-size:clamp(38px,5.6vw,66px);line-height:1;letter-spacing:-.03em;color:var(--text)}
.stat__num .plus{color:var(--accent);font-size:.62em;margin-left:.04em}
.stat__lbl{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);margin-top:16px}

/* ============================================================
   FINAL CTA
   ============================================================ */
.cta-final{position:relative;overflow:hidden;text-align:center;
  padding:clamp(72px,11vw,150px) var(--pad)}
.cta-final__glow{position:absolute;left:50%;top:40%;transform:translate(-50%,-50%);
  width:70vw;height:40vw;max-width:760px;max-height:440px;pointer-events:none;
  background:radial-gradient(ellipse at center,rgba(124,92,255,.16),transparent 65%);filter:blur(10px)}
.cta-final__inner{position:relative;z-index:1;max-width:var(--max);margin:0 auto;
  display:flex;flex-direction:column;align-items:center}
.cta-final h2{font-size:clamp(32px,6vw,64px);line-height:1.03;margin-top:20px;max-width:16ch}
.cta-final p{color:var(--muted);margin-top:20px;max-width:46ch;font-size:clamp(15px,1.7vw,18px)}
.cta-final .btn{margin-top:38px}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{max-width:var(--max);margin:0 auto;padding:34px var(--pad) 46px;
  display:flex;flex-wrap:wrap;gap:18px 30px;align-items:center;justify-content:space-between}
.site-footer .copy{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);letter-spacing:.02em}
.site-footer .copy .c{color:var(--accent)}
.site-footer .tag{font-family:var(--font-mono);font-size:12px;color:var(--muted);
  display:inline-flex;align-items:center;gap:9px}
.site-footer .tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 10px var(--accent)}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:900px){
  .nav-links{display:none}
  .menu-btn{display:inline-flex}
  main{border-left:0;border-right:0}
  .positioning__inner{grid-template-columns:1fr}
  .principles{grid-template-columns:1fr}
  .principle{border-left:0;border-top:1px solid var(--line);padding-left:clamp(8px,1.5vw,16px)}
  .principle:first-child{border-top:0}
  .stats{grid-template-columns:1fr 1fr}
  .stat{border-left:0;border-top:1px solid var(--line)}
  .stat:first-child,.stat:nth-child(2){border-top:0}
  .stat:nth-child(odd){padding-left:clamp(8px,1.5vw,16px)}
}
@media (max-width:620px){
  .build-row{grid-template-columns:1fr;gap:6px}
  .build-row .num{padding-top:0}
  .build-row__body{grid-template-columns:1fr;gap:10px}
  .build-row .ar{display:none}
  .build-row:hover h3{transform:none}
  .hero h1{max-width:18ch}
  .stats{grid-template-columns:1fr 1fr}
}