/* ==========================================================================
   Abdullah Chattha — personal site
   Design tokens
   ========================================================================== */

:root{
  --ink-950:#0a0d10;
  --ink-900:#10151a;
  --ink-850:#151b22;
  --ink-800:#1b232c;
  --ink-700:#28323d;
  --fog-100:#e9edf0;
  --fog-300:#a7b2ba;
  --fog-500:#71808a;
  --gold-300:#e4c989;
  --gold-500:#c9a15a;
  --gold-700:#8a6c37;
  --teal-500:#4f8a86;

  --display:'Space Grotesk',system-ui,sans-serif;
  --body:'IBM Plex Sans',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;

  --max:1180px;
  --pad:clamp(20px,5vw,64px);
  --radius:2px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-950);
  color:var(--fog-100);
  font-family:var(--body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--display);font-weight:600;line-height:1.08;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important}
}

:focus-visible{outline:2px solid var(--gold-500);outline-offset:3px}

.skip-link{
  position:absolute;left:12px;top:-48px;z-index:100;
  background:var(--gold-500);color:var(--ink-950);font-family:var(--mono);font-size:13px;
  padding:10px 16px;transition:top .2s ease;
}
.skip-link:focus{top:12px}

.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}

.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gold-500);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--gold-500)}

.hr{height:1px;background:linear-gradient(90deg,var(--ink-700),transparent 85%);border:0;margin:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:40;
  background:rgba(10,13,16,.82);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--ink-800);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding-top:18px;padding-bottom:18px}
.logo{font-family:var(--mono);font-size:14px;letter-spacing:.06em;color:var(--fog-100)}
.logo b{color:var(--gold-500);font-weight:600}
.nav-links{display:flex;gap:2px;align-items:center}
.nav-links a{
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.03em;
  color:var(--fog-300);
  padding:8px 14px;
  border-radius:var(--radius);
  transition:color .2s ease;
  position:relative;
}
.nav-links a:hover{color:var(--fog-100)}
.nav-links a.active{color:var(--gold-300)}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:1px;background:var(--gold-500);
}
.nav-toggle{display:none;background:none;border:1px solid var(--ink-700);color:var(--fog-100);width:40px;height:40px;align-items:center;justify-content:center}

@media (max-width:860px){
  .nav-links{
    position:fixed;inset:64px 0 0 0;background:var(--ink-950);
    flex-direction:column;align-items:flex-start;gap:0;padding:8px var(--pad) 24px;
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:all .25s ease;
    border-top:1px solid var(--ink-800);
  }
  .nav-links.open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-links a{width:100%;padding:14px 4px;border-bottom:1px solid var(--ink-800);font-size:15px}
  .nav-toggle{display:flex}
}

/* ---------- hero / identity graph ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--ink-800)}
#identity-graph{position:absolute;inset:0;width:100%;height:100%;opacity:.55}
.hero-inner{position:relative;z-index:2;padding-top:clamp(64px,12vh,140px);padding-bottom:clamp(64px,10vh,120px)}
.hero-kicker{margin-bottom:22px}
.hero h1{
  font-size:clamp(42px,7.4vw,92px);
  letter-spacing:-.01em;
  max-width:14ch;
}
.hero h1 .accent{color:var(--gold-500)}
.hero-role{
  font-family:var(--mono);color:var(--fog-300);font-size:clamp(14px,1.7vw,18px);
  margin-top:20px;letter-spacing:.02em;
}
.hero-role span{color:var(--fog-100)}
.hero-desc{max-width:52ch;color:var(--fog-300);font-size:17px;margin-top:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

.btn{
  font-family:var(--mono);font-size:13px;letter-spacing:.03em;
  padding:13px 22px;border:1px solid var(--ink-700);color:var(--fog-100);
  display:inline-flex;align-items:center;gap:8px;transition:border-color .2s ease, transform .2s ease, background .2s ease;
}
.btn:hover{border-color:var(--gold-500);transform:translateY(-1px)}
.btn.primary{background:var(--gold-500);color:var(--ink-950);border-color:var(--gold-500);font-weight:600}
.btn.primary:hover{background:var(--gold-300);border-color:var(--gold-300)}

/* ---------- sections ---------- */
section{padding-top:clamp(56px,9vh,110px);padding-bottom:clamp(56px,9vh,110px)}
.section-head{max-width:60ch;margin-bottom:44px}
.section-head h2{font-size:clamp(28px,4vw,42px)}
.section-head p{color:var(--fog-300);margin-top:14px;font-size:16px;max-width:56ch}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media (max-width:860px){.grid-2{grid-template-columns:1fr;gap:36px}.grid-3{grid-template-columns:1fr}}

.card{
  border:1px solid var(--ink-800);background:var(--ink-900);padding:30px 26px;
  transition:border-color .2s ease, transform .2s ease;
}
.card:hover{border-color:var(--gold-700);transform:translateY(-3px)}
.card .num{font-family:var(--mono);color:var(--gold-500);font-size:13px}
.card h3{font-size:19px;margin-top:14px}
.card p{color:var(--fog-300);margin-top:10px;font-size:14.5px}

.tag{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;
  color:var(--teal-500);border:1px solid var(--ink-700);padding:4px 9px;display:inline-block;
}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease, transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ---------- about / portrait ---------- */
.portrait-frame{
  border:1px solid var(--ink-800);aspect-ratio:4/5;background:var(--ink-900);
  display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;
}
.portrait-frame img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.portrait-frame:hover img{transform:scale(1.03)}
.portrait-placeholder{color:var(--fog-500);font-family:var(--mono);font-size:12.5px;text-align:center;padding:24px;letter-spacing:.03em}
.portrait-frame::after{content:"";position:absolute;inset:0;border:1px solid var(--gold-700);margin:10px;pointer-events:none;opacity:.4}

/* ---------- interests / list rows ---------- */
.row-list{border-top:1px solid var(--ink-800)}
.row-item{
  display:flex;justify-content:space-between;align-items:baseline;gap:24px;
  padding:22px 0;border-bottom:1px solid var(--ink-800);
}
.row-item .rk{font-family:var(--mono);color:var(--fog-500);font-size:13px;width:64px;flex:none}
.row-item h4{font-size:19px;flex:1}
.row-item p{color:var(--fog-300);font-size:14px;max-width:34ch;text-align:right}
@media (max-width:700px){.row-item{flex-direction:column;gap:8px}.row-item p{text-align:left}}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--ink-800);padding-top:48px;padding-bottom:48px}
.foot-grid{display:flex;flex-wrap:wrap;justify-content:space-between;gap:32px}
.foot-col h5{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--fog-500);margin-bottom:14px}
.foot-col a{display:block;color:var(--fog-300);font-size:14.5px;padding:5px 0;transition:color .2s ease}
.foot-col a:hover{color:var(--gold-300)}
.foot-bottom{margin-top:40px;padding-top:24px;border-top:1px solid var(--ink-800);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--fog-500);font-size:13px;font-family:var(--mono)}

/* ---------- misc ---------- */
.pill-list{display:flex;flex-wrap:wrap;gap:10px}
.empty-state{border:1px dashed var(--ink-700);padding:48px 30px;text-align:center;color:var(--fog-300)}
.empty-state .eyebrow{justify-content:center}
.empty-state h3{margin-top:16px;font-size:22px;color:var(--fog-100)}
.empty-state p{margin-top:10px;max-width:46ch;margin-left:auto;margin-right:auto}

.breadcrumb{font-family:var(--mono);font-size:12.5px;color:var(--fog-500);padding-top:22px}
.breadcrumb a{color:var(--fog-500)}
.breadcrumb a:hover{color:var(--gold-300)}

.form-field{display:flex;flex-direction:column;gap:8px;margin-bottom:22px}
.form-field label{font-family:var(--mono);font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--fog-500)}
.form-field input,.form-field textarea{
  background:var(--ink-900);border:1px solid var(--ink-700);color:var(--fog-100);
  padding:13px 14px;font-family:var(--body);font-size:15px;resize:vertical;
}
.form-field input:focus,.form-field textarea:focus{border-color:var(--gold-500);outline:none}

.blog-list-item{display:grid;grid-template-columns:120px 1fr;gap:22px;padding:26px 0;border-bottom:1px solid var(--ink-800)}
.blog-list-item time{font-family:var(--mono);color:var(--fog-500);font-size:13px}
.blog-list-item h3{font-size:20px}
.blog-list-item p{color:var(--fog-300);margin-top:8px;font-size:14.5px}
@media (max-width:700px){.blog-list-item{grid-template-columns:1fr;gap:8px}}

article.prose{max-width:70ch}
article.prose h2{margin-top:46px;margin-bottom:14px;font-size:26px}
article.prose p{color:var(--fog-300);margin-top:16px;font-size:16.5px}
article.prose ul{margin-top:16px}
article.prose li{color:var(--fog-300);padding-left:18px;position:relative;margin-top:8px}
article.prose li::before{content:"—";position:absolute;left:0;color:var(--gold-500)}