/* Zaid Mahboob — homepage. Light editorial layout: paper, ink and one signal yellow. */
:root {
  --bg: #e3e5e3;           /* paper */
  --bg-2: #d6d9d7;
  --bg-3: #cbcfcc;
  --ink: #15181c;
  --ink-2: #15181cb3;
  --muted: #15181c80;
  --line: #15181c29;
  --accent: #ffc20e;       /* signal */
  --accent-ink: #15181c;
  --gold: var(--accent);
  --cold: #d0e0e6;
  --cold-ink: #0f2b38;
  --cold-muted: #0f2b38b8;
  --cold-line: #0f2b382e;
  --dark: #15181c;
  --dark-2: #15181c;
  --dark-ink: #e3e5e3;     /* on-ink */
  --dark-muted: #e3e5e3b8;
  --dark-line: #e3e5e32e;
  --display: 'Anton', 'Arial Narrow', Impact, sans-serif;
  --sans: 'Instrument Sans', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --gutter: clamp(16px, 3.4vw, 48px);
  --max: 1400px;
}

*, *::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(--ink);
  font: 400 17px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4, p { margin: 0; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 50; background: var(--ink); color: #fff; padding: 8px 12px; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.cta :focus-visible, .case--dark :focus-visible, .project:focus-visible { outline-color: var(--accent); }

.display {
  font: 400 clamp(48px, 7.4vw, 112px)/.92 var(--display);
  text-transform: uppercase; letter-spacing: .005em;
}
.eyebrow { font: 500 13px/1.2 var(--mono); text-transform: uppercase; letter-spacing: .08em; }

/* NAV ----------------------------------------------------------------- */
.nav {
  position: absolute; inset: 0 0 auto; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 26px var(--gutter);
  font-weight: 600; font-size: 15px;
}
.nav a { text-decoration: none; }
.nav__links { display: flex; gap: clamp(16px, 2.6vw, 36px); }
.nav__links a { position: relative; }
.nav__links a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px;
  background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .25s;
}
.nav__links a:hover::after { transform: scaleX(1); }

/* HERO ---------------------------------------------------------------- */
.hero {
  position: relative; min-height: 100svh;
  display: grid; grid-template-rows: auto 1fr auto auto;
  background: radial-gradient(ellipse 50% 45% at 50% 58%, #f3f3f1 0%, rgba(243, 243, 241, 0) 70%), var(--bg);
  overflow: hidden;
}
.hero__name {
  grid-row: 1; grid-column: 1; padding: 92px var(--gutter) 0;
  display: flex; justify-content: center; gap: 1.3em;   /* the G1 stands in this gap */
  font: 400 clamp(64px, 13.2vw, 212px)/.82 var(--display);
  text-transform: uppercase; letter-spacing: .01em; color: var(--ink);
  user-select: none;
}
.hero__stage { grid-row: 1 / 3; grid-column: 1; position: relative; z-index: 2; min-height: 420px; }
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: pointer; touch-action: pan-y; }
.hero__hint {
  position: absolute; left: var(--robot-x, 50%); bottom: 18px; transform: translateX(clamp(110px, 10vw, 170px));
  display: flex; flex-direction: column; gap: 2px; font-size: 13px; color: var(--ink-2);
  pointer-events: none; opacity: 0; transition: opacity .6s;
}
.hero__hint b { font: 500 11px/1.2 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--ink); }
.hero.is-ready .hero__hint { opacity: 1; }
.hint-touch { display: none; }
@media (hover: none) { .hint-desk { display: none; } .hint-touch { display: inline; } }
.hero__floor { grid-row: 3; grid-column: 1; height: 7px; background: var(--accent); position: relative; z-index: 1; }
.hero__info {
  grid-row: 4; grid-column: 1; display: grid; grid-template-columns: 1fr 2fr 1fr; gap: 32px;
  padding: 34px var(--gutter) 44px; max-width: var(--max); width: 100%; margin: 0 auto;
}
.hero__role strong { display: block; font-size: 18px; }
.hero__role span, .hero__loc { color: var(--muted); }
.hero__loc { text-align: right; }
.hero__pitch p:first-child { font-size: clamp(20px, 1.9vw, 27px); line-height: 1.3; max-width: 30ch; }
.hero__open { margin-top: 16px; color: var(--muted); font-size: 16px; }
.hero__open i { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); margin-right: 10px; vertical-align: 1px; }
.hero__open a { color: var(--ink); font-weight: 600; text-underline-offset: 3px; }

/* WHAT I WORK ON ------------------------------------------------------ */
.intro { padding-top: clamp(90px, 12vw, 170px); padding-bottom: clamp(60px, 8vw, 110px); }
.intro__title { margin-top: 18px; max-width: 12ch; font: 400 clamp(56px, 8.6vw, 140px)/.9 var(--display); text-transform: uppercase; }
.intro__grid { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(32px, 6vw, 96px); margin-top: clamp(36px, 4.5vw, 64px); align-items: start; }
.intro__lead { font-size: clamp(24px, 2.4vw, 34px); line-height: 1.22; letter-spacing: -.01em; max-width: 24ch; }
.intro__body { display: grid; gap: 16px; color: var(--ink-2); font-size: clamp(17px, 1.35vw, 19px); }
.intro__body p:first-child { color: var(--ink); font-weight: 600; }

/* two columns: focus (left) and robotics suite (right) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 4vw, 64px); margin-top: clamp(64px, 8vw, 120px); padding-top: clamp(28px, 3vw, 40px); border-top: 3px solid var(--ink); align-items: start; }
.split__title { margin-top: 12px; font: 400 clamp(36px, 3.6vw, 58px)/.95 var(--display); text-transform: uppercase; max-width: 14ch; }
.split__lead { margin: 14px 0 24px; color: var(--ink-2); font-size: 17px; max-width: 34em; }

.project {
  display: flex; flex-direction: column;
  background: var(--dark); color: var(--dark-ink); text-decoration: none; border-radius: 4px; overflow: hidden;
  transition: transform .25s;
}
.project:hover { transform: translateY(-3px); }
.project__text { padding: clamp(24px, 2.6vw, 36px); display: flex; flex-direction: column; gap: 12px; flex: 1; }
.project .eyebrow { color: var(--gold); }
.project__title { font: 400 clamp(36px, 3.4vw, 56px)/.92 var(--display); text-transform: uppercase; }
.project__desc { font-size: clamp(18px, 1.5vw, 21px); color: var(--dark-ink); max-width: 30ch; }
.project__tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.project__tags li { font: 500 12px/1 var(--mono); letter-spacing: .04em; padding: 8px 11px; border: 1px solid var(--dark-line); border-radius: 999px; color: var(--dark-ink); }
.project__stats { margin: 10px 0 0; display: flex; gap: clamp(20px, 3vw, 44px); flex-wrap: wrap; }
.project__stats dt { font: 400 clamp(28px, 2.6vw, 40px)/1 var(--display); }
.project__stats dd { margin: 4px 0 0; font-size: 13px; color: var(--dark-muted); }
.project__go { margin-top: auto; padding-top: 14px; font-weight: 600; color: var(--dark-ink); }
.project:hover .project__go { text-decoration: underline; text-underline-offset: 4px; }
.project__media { position: relative; background: #000; aspect-ratio: 16 / 9; }
.project__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .9; }
.project__play {
  position: absolute; left: 50%; top: 50%; width: 76px; height: 76px; margin: -38px 0 0 -38px;
  border-radius: 50%; background: var(--accent); box-shadow: 0 8px 30px rgba(0, 0, 0, .35); transition: transform .25s;
}
.project__play::after { content: ''; position: absolute; left: 31px; top: 24px; border-left: 20px solid var(--ink); border-top: 14px solid transparent; border-bottom: 14px solid transparent; }
.project:hover .project__play { transform: scale(1.08); }

/* SECTION HEAD -------------------------------------------------------- */
.sec-head { display: flex; justify-content: space-between; align-items: end; gap: 32px; margin-bottom: clamp(32px, 4vw, 56px); }
.sec-head p { max-width: 28em; color: var(--muted); font-size: 16px; text-align: right; }
.sec-head--dark p { color: var(--dark-muted); }


/* STAT LIST (shared with project pages) ------------------------------ */
.stats { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.stats li { display: grid; grid-template-columns: minmax(150px, 3fr) 7fr; gap: 24px; align-items: center; padding: 22px 0; border-bottom: 1px solid var(--line); }
.stats b { font: 400 clamp(48px, 6vw, 88px)/1 var(--display); font-variant-numeric: tabular-nums; }
.stats strong { display: block; font-size: 19px; }
.stats span { color: var(--muted); font-size: 16px; }

/* ROBOTICS SUITE ------------------------------------------------------ */
.suite__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(8px, 1vw, 12px); }
.kit { position: relative; background: var(--ink); border-radius: 4px; overflow: hidden; }
.kit__view {
  position: relative; aspect-ratio: 1 / 1;
  background: radial-gradient(ellipse 70% 60% at 50% 55%, #e3e5e31f 0%, #e3e5e300 75%);
}
.kit__view canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; touch-action: pan-y; }
.kit__view canvas:active { cursor: grabbing; }
.kit__view::after {
  content: 'Loading'; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  font: 500 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--dark-muted);
  transition: opacity .4s; pointer-events: none;
}
.kit.is-ready .kit__view::after { opacity: 0; }
.kit__name { position: absolute; left: 12px; bottom: 11px; font: 500 11px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--gold); pointer-events: none; }
.kit__name small { display: block; font: 400 12px/1.3 var(--sans); letter-spacing: 0; text-transform: none; color: var(--dark-muted); }

/* EXPERIENCE: case studies ------------------------------------------ */
.work { padding-top: clamp(80px, 10vw, 140px); padding-bottom: clamp(40px, 5vw, 80px); }
.case { padding: clamp(56px, 7vw, 100px) 0; }
.case--dark { background: var(--dark); color: var(--dark-ink); }
.case--cold { background: var(--cold); color: var(--cold-ink); }
.case__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.case__name { font: 400 clamp(52px, 6.6vw, 108px)/.9 var(--display); text-transform: uppercase; }
.case__name span { display: block; color: var(--accent); }
.case__stats { margin: clamp(28px, 3.4vw, 48px) 0 0; display: grid; gap: 18px; }
.case__stats div { display: grid; grid-template-columns: minmax(130px, auto) 1fr; gap: 18px; align-items: baseline; }
.case__stats dt { font: 400 clamp(34px, 3.4vw, 52px)/1 var(--display); }
.case__stats dd { margin: 0; font-size: 15px; color: var(--muted); }
.case--dark .case__stats dd { color: var(--dark-muted); }
.case__body { display: grid; gap: 14px; font-size: clamp(16px, 1.3vw, 18px); color: var(--ink-2); }
.case--dark .case__body { color: var(--dark-muted); }
.case__meta { font: 500 12px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--ink); }
.case--dark .case__meta { color: var(--accent); }
.case--cold .case__meta, .case--cold .case__body h4, .case--cold .case__name { color: var(--cold-ink); }
.case--cold .case__body, .case--cold .case__stats dd { color: var(--cold-muted); }
.case__meta--top { margin-top: 22px; }
.case__list { margin: 0; padding: 0; list-style: none; display: grid; gap: 0; border-top: 1px solid var(--line); }
.case__list li { padding: 13px 0 13px 22px; border-bottom: 1px solid var(--line); position: relative; }
.case__list li::before { content: ''; position: absolute; left: 0; top: 21px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.case--dark .case__list, .case--dark .case__list li { border-color: var(--dark-line); }
.case--cold .case__list, .case--cold .case__list li { border-color: var(--cold-line); }
.case--cold .case__list li::before { background: var(--cold-ink); }
.case__body h4 { font-size: clamp(24px, 2.2vw, 32px); line-height: 1.2; font-weight: 600; color: var(--ink); letter-spacing: -.01em; }
.case--dark .case__body h4 { color: var(--dark-ink); }
.edu { margin: clamp(36px, 4vw, 56px) 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; border-top: 1px solid var(--line); padding-top: 22px; }
.edu dt { font: 500 12px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.edu dd { margin: 6px 0 0; color: var(--ink-2); font-size: 15px; }

/* PUBLICATIONS -------------------------------------------------------- */
.pubs { padding-top: clamp(60px, 8vw, 110px); }
.pubs .sec-head a { color: var(--ink); font-weight: 600; text-underline-offset: 3px; }
.publist { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.publist li { display: grid; grid-template-columns: 90px 1fr auto; gap: 24px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--line); }
.publist span { font: 500 14px var(--mono); color: var(--muted); }
.publist a { font-weight: 600; font-size: 18px; text-decoration: none; }
.publist a:hover { text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 3px; text-underline-offset: 4px; }
.publist em { font-style: normal; color: var(--muted); font-size: 15px; text-align: right; }

/* OUTREACH ------------------------------------------------------------ */
.outreach { padding-top: clamp(80px, 10vw, 140px); padding-bottom: clamp(80px, 10vw, 140px); }
.posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.post {
  display: flex; flex-direction: column; gap: 8px; text-decoration: none;
  padding: 22px; background: var(--bg-2); border-radius: 4px; transition: transform .2s, background .2s;
}
.post:hover { transform: translateY(-3px); background: var(--bg-3); }
.post__tag { font: 500 11px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.post h3 { font-size: 20px; line-height: 1.25; font-weight: 700; }
.post p { color: var(--ink-2); font-size: 15px; }
.post--feat { background: var(--ink); color: var(--dark-ink); min-height: 190px; }
.post--feat:hover { background: var(--ink); }
.post--feat p, .post--feat .post__tag { color: var(--dark-muted); }
.post--feat .post__tag { color: var(--gold); }
.post--kids { background: var(--accent); color: var(--ink); }
.post--kids:hover { background: var(--accent); }
.post--kids p, .post--kids .post__tag { color: var(--ink-2); }


/* CTA ----------------------------------------------------------------- */
.cta { background: var(--dark); color: var(--dark-ink); padding-top: clamp(80px, 10vw, 140px); }
.cta__grid { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: end; }
.cta__title { font: 400 clamp(64px, 10vw, 168px)/.88 var(--display); text-transform: uppercase; max-width: 9ch; }
.cta__body { margin-top: 26px; max-width: 32em; color: var(--dark-muted); font-size: 18px; }
.cta__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn {
  font: 600 15px/1 var(--sans); padding: 15px 22px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--dark-line); background: transparent; color: var(--dark-ink); text-decoration: none;
  overflow-wrap: anywhere;
}
.btn:hover { border-color: var(--dark-ink); }
.btn--accent { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn--accent:hover { background: var(--dark-ink); border-color: var(--dark-ink); }
.cta__links { display: flex; gap: 24px; margin-top: 28px; font-weight: 600; flex-wrap: wrap; }
.cta__links a { text-underline-offset: 4px; }
.cta__photo { width: clamp(180px, 22vw, 300px); height: auto; aspect-ratio: 3 / 4; object-fit: cover; object-position: 50% 20%; border-radius: 4px; }
.foot { display: flex; justify-content: space-between; gap: 24px; padding-top: 56px; padding-bottom: 32px; margin-top: 72px; border-top: 1px solid var(--dark-line); font-size: 12px; color: var(--dark-muted); }
.foot span:last-child { text-align: right; max-width: 60em; }

/* REVEAL -------------------------------------------------------------- */
.js .rv { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js .rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .rv { opacity: 1; transform: none; transition: none; } }

/* RESPONSIVE ---------------------------------------------------------- */
@media (max-width: 1000px) {
  .posts { grid-template-columns: repeat(2, 1fr); }
  .intro__grid, .split, .case__grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav__links a:not(:last-child) { display: none; }
  .hero__name { flex-direction: column; gap: 0; padding-top: 80px; line-height: .86; font-size: clamp(72px, 25vw, 140px); }
  .hero__name span:last-child { align-self: flex-end; }
  .hero__stage { grid-row: 2; min-height: 400px; }
  .hero__hint { transform: none; left: var(--gutter); }
  .hero__info { grid-template-columns: 1fr; gap: 14px; padding-top: 24px; }
  .hero__loc { text-align: left; order: -1; font-size: 14px; }
  .sec-head { flex-direction: column; align-items: start; gap: 12px; }
  .sec-head p { text-align: left; }
  .posts, .edu { grid-template-columns: 1fr; }
  .case__stats div { grid-template-columns: 1fr; gap: 4px; }
  .stats li { grid-template-columns: 1fr; gap: 6px; }
  .publist li { grid-template-columns: 1fr; gap: 4px; }
  .publist em { text-align: left; }
  .cta__grid { grid-template-columns: 1fr; }
  .cta__photo { width: 160px; }
  .foot { flex-direction: column; }
  .foot span:last-child { text-align: left; }
}