/* ---------- self-hosted faces ----------
   Served from our own origin: no third-party DNS, no render-blocking
   request to fonts.googleapis.com. swap keeps text visible while loading. */
@font-face{font-family:"Bricolage Grotesque";src:url("/assets/fonts/bricolage-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap;}
@font-face{font-family:"Bricolage Grotesque";src:url("/assets/fonts/bricolage-700.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap;}
@font-face{font-family:"Bricolage Grotesque";src:url("/assets/fonts/bricolage-800.woff2") format("woff2");font-weight:800;font-style:normal;font-display:swap;}
@font-face{font-family:"JetBrains Mono";src:url("/assets/fonts/mono-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap;}
@font-face{font-family:"JetBrains Mono";src:url("/assets/fonts/mono-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap;}
@font-face{font-family:"Public Sans";src:url("/assets/fonts/publicsans-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap;}
@font-face{font-family:"Public Sans";src:url("/assets/fonts/publicsans-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap;}

/* ============================================================
   Sajid Khalil — portfolio
   Direction: "precision instrument". Cool blueprint paper,
   ink type, one electric-blue signal colour, mono for anything
   that is measured. Boldness is spent on the 3D wave field
   and the headline; everything else stays quiet.
   ============================================================ */

:root{
  --paper:      #E9EBEE;
  --paper-lift: #F5F6F8;
  --ink:        #101418;
  --graphite:   #626C77;
  --rule:       #CBD1D8;
  --signal:     #1436C8;
  --signal-soft:#E3E8FA;

  --display: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --body:    "Public Sans", ui-sans-serif, system-ui, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, "SF Mono", monospace;

  --gut: clamp(1.25rem, 4vw, 4.5rem);
  --max: 1240px;
  --r: 4px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:clamp(1rem,.96rem + .2vw,1.0625rem);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* faint blueprint grid behind everything */
body::before{
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(16,20,24,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(16,20,24,.045) 1px, transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(ellipse 100% 70% at 50% 0%, #000 25%, transparent 78%);
}

img{ max-width:100%; display:block; }
a{ color:inherit; }

.skip{
  position:absolute; left:-9999px; top:0; z-index:100;
  background:var(--ink); color:var(--paper); padding:.75rem 1.25rem;
}
.skip:focus{ left:0; }

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

/* ---------- shared type ---------- */
.label{
  font-family:var(--mono); font-size:.6875rem; letter-spacing:.16em;
  text-transform:uppercase; color:var(--signal); margin:0 0 .9rem;
  display:flex; align-items:center; gap:.7rem;
}
.label::after{
  content:""; height:1px; flex:1; background:var(--rule); max-width:120px;
}

.h2{
  font-family:var(--display);
  font-size:clamp(1.85rem,1.2rem + 2.6vw,3.1rem);
  font-weight:700; line-height:1.06; letter-spacing:-.028em;
  margin:0; max-width:16ch;
}

/* ---------- nav ---------- */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  gap:1rem; padding:1rem var(--gut);
  transition:background .35s ease, border-color .35s ease, backdrop-filter .35s;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:rgba(233,235,238,.82);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--rule);
}
.nav__mark{
  display:flex; align-items:center; gap:.6rem;
  font-family:var(--mono); font-size:.8125rem; font-weight:500;
  letter-spacing:.02em; text-decoration:none;
}
.nav__glyph{
  width:22px; height:22px; flex:none;
  color:var(--ink);              /* drives the rect fill via currentColor */
  transition:transform .3s cubic-bezier(.22,.61,.36,1);
}
.nav__mark:hover .nav__glyph{ transform:translateY(-2px) rotate(-4deg); }
.nav__links{ display:flex; align-items:center; gap:clamp(.9rem,2vw,2rem); }
.nav__links a{
  font-family:var(--mono); font-size:.75rem; letter-spacing:.04em;
  text-decoration:none; color:var(--graphite); transition:color .2s;
}
.nav__links a:hover{ color:var(--ink); }
.nav__cta{
  color:var(--ink) !important; border:1px solid var(--ink);
  padding:.45rem .85rem; border-radius:var(--r);
  transition:background .2s, color .2s !important;
}
.nav__cta:hover{ background:var(--ink); color:var(--paper) !important; }

/* ---------- hero ---------- */
.hero{
  position:relative; min-height:100svh;
  display:flex; align-items:center;
  padding:7rem var(--gut) 4rem;
  overflow:hidden;
}
.hero__canvas{
  position:absolute; inset:0; width:100%; height:100%;
  z-index:0; pointer-events:none; opacity:.6;
  mask-image:
    linear-gradient(to bottom, transparent 0%, #000 28%, #000 74%, transparent 100%),
    linear-gradient(to right, transparent 0%, transparent 26%, #000 62%);
  -webkit-mask-composite:source-in;
  mask-composite:intersect;
}

/* scrim: keeps the type legible over the field without hiding it */
.hero::after{
  content:""; position:absolute; inset:0; z-index:1; pointer-events:none;
  background:linear-gradient(100deg,
    var(--paper) 0%, var(--paper) 22%,
    rgba(233,235,238,.82) 42%,
    rgba(233,235,238,.35) 62%,
    transparent 82%);
}
.hero__inner{
  position:relative; z-index:2;
  width:100%; max-width:var(--max); margin:0 auto;
}

.eyebrow{
  font-family:var(--mono); font-size:.6875rem; letter-spacing:.14em;
  text-transform:uppercase; color:var(--graphite);
  display:inline-flex; align-items:center; gap:.6rem;
  margin:0 0 1.6rem;
  border:1px solid var(--rule); border-radius:100px;
  padding:.3rem .95rem .3rem .3rem; background:rgba(245,246,248,.85);
}
.eyebrow__face{
  width:28px; height:28px; border-radius:50%;
  object-fit:cover; object-position:50% 22%;
  border:1px solid var(--rule); flex:none;
}
.dot{
  width:6px; height:6px; border-radius:50%; background:var(--signal);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{ 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.35;transform:scale(.8)} }

.hero__name{
  font-family:var(--display);
  font-size:clamp(3.2rem,1.4rem + 9.5vw,9rem);
  font-weight:800; line-height:.86; letter-spacing:-.05em;
  margin:0 0 1.4rem; text-wrap:balance;
}
.hero__name .ch{ display:inline-block; will-change:transform,opacity; }

.hero__line{
  font-family:var(--display);
  font-size:clamp(1.35rem,.95rem + 1.7vw,2.35rem);
  font-weight:500; line-height:1.14; letter-spacing:-.025em;
  margin:0 0 1.5rem; max-width:22ch;
}
.hero__lead{
  max-width:52ch; color:#3D454D; margin:0 0 2.2rem;
}
.hero__lead strong{ color:var(--ink); font-weight:500; }

.hero__actions{ display:flex; flex-wrap:wrap; gap:.75rem; margin-bottom:2.75rem; }

.btn{
  display:inline-block; text-decoration:none;
  font-family:var(--mono); font-size:.8125rem; letter-spacing:.03em;
  padding:.85rem 1.5rem; border-radius:var(--r);
  background:var(--ink); color:var(--paper);
  border:1px solid var(--ink);
  transition:transform .18s ease, background .2s, color .2s;
}
.btn:hover{ transform:translateY(-2px); background:var(--signal); border-color:var(--signal); }
.btn--ghost{ background:transparent; color:var(--ink); border-color:var(--rule); }
.btn--ghost:hover{ background:transparent; color:var(--signal); border-color:var(--signal); }
.btn--big{ font-size:clamp(.95rem,.85rem + .5vw,1.3rem); padding:1.15rem 2rem; }

.hero__stats{
  display:flex; flex-wrap:wrap; gap:3.25rem; margin:0;
  padding-top:1.75rem; border-top:1px solid var(--rule);
  max-width:640px;
}
.hero__stats div{ display:flex; flex-direction:column-reverse; gap:.15rem; }
.hero__stats dt{
  font-family:var(--mono); font-size:.6875rem; letter-spacing:.12em;
  text-transform:uppercase; color:var(--graphite);
}
.hero__stats dd{
  margin:0; font-family:var(--display); font-weight:700;
  font-size:clamp(1.8rem,1.4rem + 1.4vw,2.6rem);
  line-height:1; letter-spacing:-.03em;
}
.hero__stats dd span{ color:var(--signal); }

.hero__scroll{
  position:absolute; bottom:1.75rem; left:50%; transform:translateX(-50%);
  z-index:2; font-family:var(--mono); font-size:.625rem;
  letter-spacing:.22em; text-transform:uppercase; color:var(--graphite);
  display:flex; flex-direction:column; align-items:center; gap:.55rem;
}
.hero__scroll span{
  width:1px; height:34px; background:var(--rule); position:relative; overflow:hidden;
}
.hero__scroll span::after{
  content:""; position:absolute; inset:0; background:var(--signal);
  animation:trickle 2.2s ease-in-out infinite;
}
@keyframes trickle{ 0%{transform:translateY(-100%)} 60%,100%{transform:translateY(100%)} }

/* ---------- capability strip ---------- */
.strip{
  position:relative; z-index:2;
  border-block:1px solid var(--rule);
  background:var(--paper-lift);
  overflow:hidden; padding:.9rem 0;
}
.strip__track{
  display:flex; align-items:center; gap:2.25rem; width:max-content;
  animation:slide 42s linear infinite;
  font-family:var(--mono); font-size:.75rem; letter-spacing:.1em;
  text-transform:uppercase; color:var(--graphite); white-space:nowrap;
}
.strip__track i{ width:4px; height:4px; border-radius:50%; background:var(--signal); flex:none; }
@keyframes slide{ from{transform:translateX(0)} to{transform:translateX(-50%)} }

/* ---------- sections ---------- */
.section{
  position:relative; z-index:2;
  max-width:var(--max); margin:0 auto;
  padding:clamp(3.25rem,5.5vw,5.5rem) var(--gut);
}
.section__head{ margin-bottom:clamp(1.75rem,2.8vw,2.5rem); }

/* ---------- service cards ---------- */
.cards{
  display:grid; gap:1px; background:var(--rule);
  border:1px solid var(--rule); border-radius:var(--r); overflow:hidden;
  grid-template-columns:1fr;
}
@media (min-width:640px){ .cards{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:1000px){ .cards{ grid-template-columns:repeat(3,1fr); } }
.card{
  background:var(--paper-lift); padding:clamp(1.5rem,2.2vw,2rem);
  display:flex; flex-direction:column;
  transition:background .3s ease;
}
.card:hover{ background:#fff; }
.card h3{
  font-family:var(--display); font-size:1.25rem; font-weight:700;
  letter-spacing:-.02em; margin:0 0 .7rem;
}
.card p{ margin:0 0 1.35rem; color:var(--graphite); font-size:.9375rem; }
.card p:last-of-type{ flex:1; }
.card__tags{ list-style:none; margin:auto 0 0; padding:0; display:flex; flex-wrap:wrap; gap:.35rem; }
.card__tags li{
  font-family:var(--mono); font-size:.6875rem; letter-spacing:.04em;
  color:var(--signal); background:var(--signal-soft);
  padding:.2rem .5rem; border-radius:2px; white-space:nowrap;
}

/* ---------- work ---------- */
.work{ list-style:none; margin:0; padding:0; border-top:1px solid var(--rule); }
.work__row{
  display:grid; gap:1rem 2rem; align-items:start;
  grid-template-columns:150px 1fr;
  padding:clamp(1.6rem,3vw,2.5rem) 0;
  border-bottom:1px solid var(--rule);
  transition:padding-left .35s ease;
}
.work__row:hover{ padding-left:.9rem; }
.work__meta{ display:flex; flex-direction:column; gap:.35rem; }
.work__year, .work__type{
  font-family:var(--mono); font-size:.6875rem; letter-spacing:.1em; text-transform:uppercase;
}
.work__year{ color:var(--ink); }
.work__type{ color:var(--graphite); }
.work__body h3{
  font-family:var(--display); font-size:clamp(1.3rem,1.05rem + 1vw,1.9rem);
  font-weight:700; letter-spacing:-.028em; margin:0 0 .5rem; line-height:1.1;
}
.work__body p{ margin:0; color:var(--graphite); font-size:.9375rem; max-width:68ch; }
.work__result{ text-align:right; }
.work__result span{
  display:block; font-family:var(--display); font-weight:700;
  font-size:clamp(1.6rem,1.3rem + 1.2vw,2.3rem);
  line-height:1; letter-spacing:-.03em; color:var(--signal);
}
.work__result small{
  font-family:var(--mono); font-size:.625rem; letter-spacing:.12em;
  text-transform:uppercase; color:var(--graphite);
}

/* ---------- about ---------- */
.about{ display:grid; gap:clamp(2rem,4vw,4.5rem); grid-template-columns:1fr; }
.about__head{ display:flex; flex-direction:column; gap:clamp(1.75rem,3vw,2.5rem); }

/* Portrait, treated as a mounted plate: hairline frame, corner ticks,
   caption set in mono below a measure rule. */
.portrait{ margin:0; max-width:340px; }
.portrait__frame{
  position:relative;
  padding:10px;
  background:var(--paper-lift);
  border:1px solid var(--rule);
  border-radius:var(--r);
}
.portrait__frame::before,
.portrait__frame::after{
  content:""; position:absolute; width:9px; height:9px; pointer-events:none;
  border-color:var(--signal); border-style:solid; border-width:0;
}
.portrait__frame::before{
  top:-1px; left:-1px; border-top-width:2px; border-left-width:2px;
}
.portrait__frame::after{
  bottom:-1px; right:-1px; border-bottom-width:2px; border-right-width:2px;
}
.portrait img{
  width:100%; height:auto; aspect-ratio:4/5; object-fit:cover;
  border-radius:2px; background:var(--rule);
  filter:grayscale(1) contrast(1.04);
  transition:filter .5s ease;
}
.portrait:hover img{ filter:grayscale(0) contrast(1); }
.portrait figcaption{
  margin-top:.9rem; padding-top:.75rem;
  border-top:1px solid var(--rule);
  display:flex; flex-direction:column; gap:.15rem;
}
.portrait__name{
  font-family:var(--mono); font-size:.75rem; letter-spacing:.06em; color:var(--ink);
}
.portrait__role{
  font-family:var(--mono); font-size:.6875rem; letter-spacing:.1em;
  text-transform:uppercase; color:var(--graphite);
}
.about__body p{ max-width:62ch; margin:0 0 1.15rem; }
.about__body strong{ font-weight:500; }
.facts{
  list-style:none; margin:2rem 0 0; padding:1.75rem 0 0;
  border-top:1px solid var(--rule);
  display:grid; gap:1.1rem 2rem;
  grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
}
.facts li{ font-size:.9375rem; }
.facts span{
  display:block; font-family:var(--mono); font-size:.625rem;
  letter-spacing:.14em; text-transform:uppercase; color:var(--graphite);
  margin-bottom:.2rem;
}

/* ---------- contact ---------- */
.section--contact{ padding-bottom:clamp(4rem,6vw,6.5rem); }
.contact{
  border:1px solid var(--rule); border-radius:var(--r);
  background:var(--paper-lift);
  padding:clamp(2rem,5vw,4.5rem);
}
.contact .label{ justify-content:flex-start; }
.contact .label::after{ max-width:60px; }
.contact__h{
  font-family:var(--display);
  font-size:clamp(1.9rem,1.15rem + 3.2vw,3.6rem);
  font-weight:700; line-height:1.03; letter-spacing:-.035em; margin:0 0 1.2rem;
}
.contact__lead{ color:var(--graphite); max-width:46ch; margin:0 0 2rem; }
.contact__links{
  list-style:none; display:flex; flex-wrap:wrap; gap:1.5rem;
  margin:2.5rem 0 0; padding:1.5rem 0 0; border-top:1px solid var(--rule);
}
.contact__links a{
  font-family:var(--mono); font-size:.75rem; letter-spacing:.05em;
  color:var(--graphite); text-decoration:none;
  border-bottom:1px solid var(--rule); padding-bottom:2px; transition:.2s;
}
.contact__links a:hover{ color:var(--signal); border-color:var(--signal); }

/* ---------- footer ---------- */
.foot{
  position:relative; z-index:2;
  border-top:1px solid var(--rule);
  padding:1.75rem var(--gut);
  display:flex; flex-wrap:wrap; gap:1rem 2rem;
  align-items:center; justify-content:space-between;
  font-family:var(--mono); font-size:.6875rem; letter-spacing:.06em;
  color:var(--graphite);
}
.foot p{ margin:0; }

/* company mark: desaturated at rest so the orange doesn't fight the
   signal blue, full colour on hover — same treatment as the portrait */
.foot__org{
  display:inline-flex; align-items:center; gap:.7rem;
  text-decoration:none; order:0;
}
.foot__org-label{
  font-family:var(--mono); font-size:.6875rem; letter-spacing:.06em;
  color:var(--graphite); white-space:nowrap;
}
.foot__org img{
  height:26px; width:auto;
  filter:grayscale(1) opacity(.6);
  transition:filter .35s ease;
}
.foot__org:hover img{ filter:none; }

/* ---------- reveal ---------- */
[data-reveal]{
  opacity:0; transform:translateY(22px);
  transition:opacity .75s cubic-bezier(.22,.61,.36,1), transform .75s cubic-bezier(.22,.61,.36,1);
}
[data-reveal].is-in{ opacity:1; transform:none; }

/* ---------- responsive ---------- */
@media (min-width:900px){
  .about{ grid-template-columns:.85fr 1.35fr; align-items:start; }
  .about__head{ position:sticky; top:6rem; }
}
@media (max-width:760px){
  .work__row{ grid-template-columns:1fr; gap:.75rem; }
  .work__meta{ flex-direction:row; gap:.9rem; }
  .work__row:hover{ padding-left:0; }
  .nav__links a:not(.nav__cta){ display:none; }
  .hero__stats{ gap:1.5rem 2rem; }
  .hero__scroll{ display:none; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important; animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{ opacity:1; transform:none; }
}