/* AB Consulting Solutions LLC - editorial ledger. Single dark theme (locked). */
@import url('fonts/fonts.css');

:root{
  --bg:#14110E; --surface:#1C1815; --surface-2:#241F1A;
  --text:#F2EDE4; --muted:#A79E90; --faint:#8C8478;
  --accent:#E0A458; --accent-deep:#B9843F;
  --line:rgba(242,237,228,.10);
  --maxw:1240px;
  --sans:'Plex Sans',ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --disp:'Space Grotesk',var(--sans);
  --mono:'Plex Mono',ui-monospace,"SF Mono",Menlo,monospace;
  --ease:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:1.0625rem;line-height:1.65;
  font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:clip;
}
section[id]{scroll-margin-top:76px;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}

/* grain - fixed, pointer-events none, does not touch scrolling containers */
body::after{
  content:"";position:fixed;inset:0;z-index:60;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='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(1.25rem,5vw,3rem);}
.eyebrow{font-family:var(--mono);font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;color:var(--accent);font-weight:500;}
.lead{color:var(--muted);max-width:60ch;}

/* ---------- NAV ---------- */
.nav{position:sticky;top:0;z-index:50;height:68px;display:flex;align-items:center;
  background:rgba(20,17,14,.9);background:color-mix(in srgb,var(--bg) 82%,transparent);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;width:100%;}
.brand{display:flex;align-items:baseline;gap:.6rem;font-family:var(--disp);font-weight:700;letter-spacing:-.01em;}
.brand .mono{font-family:var(--mono);font-weight:500;color:var(--accent);font-size:.95rem;letter-spacing:.05em;}
.brand small{font-family:var(--sans);font-weight:400;color:var(--muted);font-size:.78rem;letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:2rem;}
.nav-links a{font-size:.9rem;color:var(--muted);transition:color .25s var(--ease);}
.nav-links a:hover{color:var(--text);}
.nav-cta{font-family:var(--sans);font-weight:600;font-size:.86rem;color:var(--bg)!important;background:var(--accent);
  padding:.55rem 1.05rem;border-radius:2px;transition:transform .2s var(--ease),background .2s var(--ease);}
.nav-cta:hover{background:var(--accent-deep);}
.nav-cta:active{transform:translateY(1px);}
.nav-toggle{display:none;flex-direction:column;gap:5px;width:40px;height:40px;align-items:center;justify-content:center;
  background:none;border:1px solid var(--line);border-radius:2px;cursor:pointer;padding:0;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);transition:transform .25s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg);}
@media (max-width:820px){
  .nav-toggle{display:flex;}
  .nav-links{position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--surface);border-bottom:1px solid var(--line);padding:.5rem 0;
    max-height:0;overflow:hidden;opacity:0;pointer-events:none;transition:max-height .3s var(--ease),opacity .2s var(--ease);}
  .nav-links.open{max-height:80vh;opacity:1;pointer-events:auto;}
  .nav-links a{padding:.9rem clamp(1.25rem,5vw,3rem);font-size:1rem;color:var(--text);}
  .nav-links .nav-cta{margin:.5rem clamp(1.25rem,5vw,3rem);text-align:center;color:var(--bg)!important;}
}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:calc(100vh - 68px);min-height:calc(100dvh - 68px);display:grid;
  grid-template-columns:1.6fr 1fr;align-items:center;gap:clamp(2rem,4vw,3.5rem);
  padding-top:clamp(1rem,3vh,2.5rem);padding-bottom:2.5rem;}
.hero-copy{max-width:none;}
.hero h1{font-family:var(--disp);font-weight:500;letter-spacing:-.03em;line-height:1.05;
  font-size:clamp(2.2rem,4.1vw,3.35rem);margin:1.1rem 0 0;max-width:15ch;}
.hero h1 b{font-weight:700;color:var(--accent);}
.hero .sub{margin-top:1.3rem;font-size:clamp(1rem,1.4vw,1.1rem);color:var(--muted);max-width:40ch;line-height:1.5;}
.hero-actions{display:flex;gap:1rem;align-items:center;margin-top:2.2rem;flex-wrap:wrap;}
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;font-size:.95rem;
  padding:.85rem 1.5rem;border-radius:2px;transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);}
.btn-primary{background:var(--accent);color:var(--bg);}
.btn-primary:hover{background:var(--accent-deep);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{color:var(--text);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.hero-figure{position:relative;height:min(78vh,640px);}
.hero-figure img{width:100%;height:100%;object-fit:cover;object-position:center;filter:contrast(1.03);}
.hero-figure::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(20,17,14,.55) 100%),linear-gradient(90deg,var(--bg),transparent 22%);}
.hero-meta{position:absolute;left:0;bottom:1.5rem;z-index:2;font-family:var(--mono);font-size:.72rem;
  color:var(--faint);letter-spacing:.06em;line-height:1.9;}
.hero-meta span{color:var(--accent);}
@media (max-width:900px){
  .hero{grid-template-columns:1fr;min-height:auto;gap:1.5rem;}
  .hero-figure{height:34vh;order:-1;}
  .hero-copy{max-width:none;}
  .hero h1{max-width:none;font-size:clamp(2.1rem,8vw,3rem);}
  .hero .sub{max-width:46ch;}
}

/* ---------- reveal ----------
   Content is visible by DEFAULT. Only hide (to animate) when JS has confirmed
   it can drive the reveal - .js flag set inline in <head>. This guarantees the
   page is fully readable even if JS is blocked or fails. */
.reveal{opacity:1;transform:none;}
@keyframes rise{from{opacity:0;transform:translateY(26px);}to{opacity:1;transform:none;}}
/* Native scroll-driven path (Chrome/Edge; recent FF/Safari) is fully self-restoring,
   so it is the ONLY place we hide-then-reveal via CSS alone. */
@supports (animation-timeline:view()){
  @media (prefers-reduced-motion:no-preference){
    /* range keyed to entry only (not cover), so tall sections and the last
       section fully resolve to opacity 1 and stay there. */
    .js .reveal{opacity:0;transform:translateY(26px);animation:rise linear both;animation-timeline:view();animation-range:entry 5% entry 45%;}
    /* JS safety net: any element the timeline could not complete (e.g. last section
       with no scroll runway) gets force-revealed once it is in view. */
    .js .reveal.seen{opacity:1;transform:none;animation:none;transition:opacity .6s var(--ease),transform .6s var(--ease);}
  }
}
/* IntersectionObserver fallback: main.js sets .io ONLY after it has a working
   observer, so content is never hidden without a guaranteed restore path. */
@media (prefers-reduced-motion:no-preference){
  .io .reveal{opacity:0;transform:translateY(26px);}
  .io .reveal.in{opacity:1;transform:none;transition:opacity .8s var(--ease),transform .8s var(--ease);}
}

/* stagger for hero on load */
.load-up{opacity:0;transform:translateY(18px);}
@media (prefers-reduced-motion:no-preference){
  .load-up{animation:rise .9s var(--ease) forwards;}
  .d1{animation-delay:.05s;}.d2{animation-delay:.18s;}.d3{animation-delay:.32s;}.d4{animation-delay:.46s;}
}
@media (prefers-reduced-motion:reduce){.load-up{opacity:1;transform:none;animation:none;}}

/* ---------- section scaffolding ---------- */
section{padding-block:clamp(4rem,10vh,8rem);}
.band{background:var(--surface);border-block:1px solid var(--line);}
.sec-head{max-width:52ch;}
.sec-head h2{font-family:var(--disp);font-weight:500;letter-spacing:-.02em;line-height:1.06;
  font-size:clamp(2rem,4.2vw,3.1rem);margin:.9rem 0 0;}
.sec-head .lead{margin-top:1.2rem;}

/* ---------- POSITIONING band (full-width statement) ---------- */
.stmt{display:grid;grid-template-columns:1fr .85fr;gap:clamp(2rem,6vw,5rem);align-items:center;}
.stmt p.big{font-family:var(--disp);font-weight:500;font-size:clamp(1.6rem,3vw,2.35rem);
  line-height:1.22;letter-spacing:-.015em;color:var(--text);margin:0;}
.stmt p.big em{font-style:italic;color:var(--accent);font-weight:500;}
.stmt-figure{aspect-ratio:1/1;overflow:hidden;border:1px solid var(--line);}
.stmt-figure img{width:100%;height:100%;object-fit:cover;}
@media (max-width:820px){.stmt{grid-template-columns:1fr;}.stmt-figure{aspect-ratio:16/10;}}

/* ---------- ABOUT ---------- */
.about{display:grid;grid-template-columns:.95fr 1.15fr;gap:clamp(2rem,6vw,5rem);align-items:start;}
.about-figure{position:sticky;top:100px;overflow:hidden;border:1px solid var(--line);aspect-ratio:4/5;}
.about-figure img{width:100%;height:100%;object-fit:cover;}
.about-body h2{font-family:var(--disp);font-weight:500;letter-spacing:-.02em;font-size:clamp(1.9rem,3.6vw,2.7rem);margin:.8rem 0 1.4rem;line-height:1.08;}
.about-body p{color:var(--muted);margin:0 0 1.15rem;max-width:60ch;}
.about-body p strong{color:var(--text);font-weight:600;}
.factline{display:flex;gap:1rem;flex-wrap:wrap;margin-top:2rem;padding-top:1.75rem;border-top:1px solid var(--line);}
.fact{flex:1 1 42%;min-width:180px;}
.fact .n{font-family:var(--mono);color:var(--accent);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;}
.fact .v{margin-top:.35rem;font-size:.98rem;color:var(--text);line-height:1.4;}
@media (max-width:820px){.about{grid-template-columns:1fr;}.about-figure{position:static;aspect-ratio:16/11;max-height:420px;}}

/* ---------- SERVICES: the signature index ledger ---------- */
.ledger{margin-top:3rem;border-top:1px solid var(--line);}
.svc{display:grid;grid-template-columns:auto 1fr;gap:clamp(1.5rem,5vw,4rem);
  align-items:baseline;padding:clamp(2rem,4vw,3rem) 0;border-bottom:1px solid var(--line);position:relative;}
.svc .idx{font-family:var(--mono);font-weight:500;color:var(--text);font-size:clamp(2.4rem,6vw,4.6rem);
  line-height:.9;letter-spacing:-.02em;position:relative;}
/* underline visible by default; only retract-to-draw when JS + support confirmed */
.svc .idx::after{content:"";position:absolute;left:0;right:14%;bottom:-.18em;height:3px;background:var(--accent);
  transform:scaleX(1);transform-origin:left;}
@keyframes draw{from{transform:scaleX(0);}to{transform:scaleX(1);}}
@supports (animation-timeline:view()){
  @media (prefers-reduced-motion:no-preference){
    .js .svc .idx{color:var(--faint);}
    .js .svc .idx::after{transform:scaleX(0);animation:draw linear both;animation-timeline:view();animation-range:entry 10% entry 55%;}
  }
}
@media (prefers-reduced-motion:no-preference){
  .io .svc .idx{color:var(--faint);transition:color .5s var(--ease);}
  .io .svc .idx::after{transform:scaleX(0);}
  .io .svc.in .idx{color:var(--text);}
  .io .svc.in .idx::after{transform:scaleX(1);transition:transform .7s var(--ease);}
}
.svc-main h3{font-family:var(--disp);font-weight:500;font-size:clamp(1.35rem,2.6vw,1.9rem);letter-spacing:-.01em;margin:0 0 .7rem;line-height:1.15;}
.svc-main p{color:var(--muted);margin:0;max-width:56ch;}
.svc-tags{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:1.1rem;}
.svc-tags span{font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--faint);border:1px solid var(--line);padding:.25rem .55rem;}
@media (max-width:640px){.svc{grid-template-columns:1fr;gap:.75rem;}.svc .idx{font-size:2.6rem;}}

/* ---------- APPROACH ---------- */
.approach-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.5rem,3vw,2.5rem);margin-top:3rem;}
.step{border-top:2px solid var(--accent);padding-top:1.4rem;}
.step .k{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);}
.step h3{font-family:var(--disp);font-weight:500;font-size:1.4rem;letter-spacing:-.01em;margin:.7rem 0 .6rem;}
.step p{color:var(--muted);margin:0;font-size:.98rem;}
@media (max-width:820px){.approach-grid{grid-template-columns:1fr;}}

/* ---------- CREDENTIALS ---------- */
.creds{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(2rem,6vw,5rem);align-items:start;}
.cred-list{display:flex;flex-direction:column;}
.cred{display:grid;grid-template-columns:auto 1fr;gap:1.25rem;padding:1.4rem 0;border-bottom:1px solid var(--line);}
.cred:first-child{border-top:1px solid var(--line);}
.cred .yr{font-family:var(--mono);font-size:.8rem;color:var(--accent);white-space:nowrap;padding-top:.2rem;}
.cred .t{font-weight:600;color:var(--text);}
.cred .d{color:var(--muted);font-size:.95rem;margin-top:.2rem;}
@media (max-width:820px){.creds{grid-template-columns:1fr;}}

/* ---------- CONTACT ---------- */
.contact{text-align:left;}
.contact h2{font-family:var(--disp);font-weight:500;letter-spacing:-.025em;line-height:1.04;
  font-size:clamp(2.2rem,5.5vw,4rem);margin:1rem 0 1.6rem;max-width:16ch;}
.contact h2 b{color:var(--accent);font-weight:700;}
.contact .lead{font-size:1.1rem;margin-bottom:2.4rem;}
.contact-row{display:flex;gap:1rem;align-items:center;flex-wrap:wrap;}
.contact-meta{display:flex;gap:2.5rem;flex-wrap:wrap;margin-top:3rem;padding-top:2rem;border-top:1px solid var(--line);}
.contact-meta .item .n{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);}
.contact-meta .item .v{margin-top:.4rem;color:var(--text);}
.contact-meta .item a:hover{color:var(--accent);}

/* ---------- FOOTER ---------- */
.foot{border-top:1px solid var(--line);padding-block:2.5rem;}
.foot .wrap{display:flex;justify-content:space-between;align-items:center;gap:1.5rem;flex-wrap:wrap;}
.foot .fbrand{font-family:var(--mono);color:var(--accent);letter-spacing:.05em;}
.foot small{color:var(--faint);font-size:.82rem;}
.foot .fnav{display:flex;gap:1.5rem;}
.foot .fnav a{color:var(--muted);font-size:.85rem;}
.foot .fnav a:hover{color:var(--text);}

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