/* ─────────────────────────────────────────────────────────────────────
   Gishnu Madhu — portfolio
   Palette and rhythm carried over from the Claude Design source.
   ───────────────────────────────────────────────────────────────────── */

:root{
  --bg:#f6f3ec;
  --ink:#16150f;
  --dark:#0b0d07;
  --dark-panel:#101208;
  --lime:oklch(0.85 0.19 125);
  --rust:oklch(0.62 0.17 40);
  --muted:oklch(0.36 0.01 90);
  --muted-2:oklch(0.55 0.02 90);
  --line:rgba(22,21,15,.16);
  --on-dark:#f6f3ec;
  --on-dark-2:#e8e4d8;
  --on-dark-3:#8d887a;
  --moss:#6f7d68;
  --hair-dark:#3b4235;
  --hair-darker:#24291f;
  --sans:'Bricolage Grotesque',system-ui,-apple-system,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--rust)}
img{max-width:100%}
h1,h2,h3{text-wrap:balance}
.mono{font-family:var(--mono)}
.accent{color:var(--rust)}
::selection{background:var(--lime)}
input{font-family:inherit}
input:focus{outline:none}
button{font:inherit;border:none;background:none;color:inherit;cursor:pointer}

@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes drift{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-9px) rotate(2deg)}}
@keyframes pulse{0%,100%{opacity:.32;transform:scale(1)}50%{opacity:.04;transform:scale(1.5)}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* custom cursor — pointer devices only */
.cursor{
  position:fixed;top:0;left:0;width:16px;height:16px;border-radius:50%;
  background:var(--ink);pointer-events:none;z-index:999;mix-blend-mode:difference;
  transform:translate3d(-100px,-100px,0);margin:-8px 0 0 -8px;display:none;
  transition:width .22s cubic-bezier(.22,1,.36,1),height .22s cubic-bezier(.22,1,.36,1);
}
@media (hover:hover) and (pointer:fine){
  body{cursor:none}
  a,input,button,[data-hit]{cursor:none}
  .cursor{display:block}
}

.progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:200}
.progress__bar{height:100%;width:0;background:var(--lime)}

.secmark{
  position:fixed;left:20px;bottom:20px;z-index:180;font-size:10.5px;letter-spacing:.14em;
  color:var(--on-dark-3);opacity:0;transform:translateY(8px);
  transition:opacity .4s ease,transform .4s ease;pointer-events:none;
}
.secmark.is-on{opacity:1;transform:none}

/* ── layout ─────────────────────────────────────────────────────────── */
.wrap{max-width:1180px;margin:0 auto}
.sec{padding:80px 28px;scroll-margin-top:40px}
.sec--about{padding:96px 28px 80px}
.sec--work{padding:20px 28px 60px}
.sec--contact{padding:96px 28px 60px}
.sec--dark{background:var(--ink);color:var(--on-dark)}
.sec--darkest{background:var(--dark);color:var(--on-dark)}

.sec__head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;border-bottom:2px solid var(--ink);padding-bottom:14px}
.sec__head h2{margin:0;font-size:clamp(34px,5vw,64px);font-weight:800;letter-spacing:-.03em}
.sec__head--onDark{border-bottom-color:var(--on-dark)}
.sec__meta{font-size:11px;letter-spacing:.1em;color:var(--muted-2);white-space:nowrap}
.sec--dark .sec__meta,.sec--darkest .sec__meta{color:var(--on-dark-3)}
.sec--darkest .sec__meta{color:var(--moss)}
.sec__link{font-size:11px;letter-spacing:.1em;border-bottom:1.5px solid var(--ink);padding-bottom:3px;white-space:nowrap}

/* ── hero ───────────────────────────────────────────────────────────── */
.hero{position:relative;height:100vh;min-height:640px;overflow:hidden;background:var(--dark)}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero__scrim{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(100deg,rgba(11,13,7,.94) 0%,rgba(11,13,7,.86) 34%,rgba(11,13,7,.25) 62%,rgba(11,13,7,0) 82%)}
.hero__inner{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:22px 28px 34px;pointer-events:none}
.hero__top{display:flex;align-items:center;justify-content:space-between;gap:16px;letter-spacing:.12em;color:var(--on-dark-2)}
.hero__wordmark{font-size:20px;font-weight:700;letter-spacing:.06em}
.hero__hint{color:var(--moss);font-size:11px}
.hero__h1{
  margin:0;font-size:clamp(40px,7.4vw,116px);line-height:.92;font-weight:800;letter-spacing:-.04em;
  color:var(--on-dark);max-width:15ch;min-height:2.76em;text-shadow:0 2px 30px rgba(11,13,7,.95);
}
.caret{display:inline-block;width:.07em;height:.74em;background:var(--on-dark);margin-left:.05em;vertical-align:baseline;animation:blink 1.05s steps(1) infinite}
.hero__row{display:flex;flex-wrap:wrap;gap:36px;align-items:flex-end;justify-content:space-between;margin-top:30px}
.hero__facts{max-width:520px;min-height:132px}
.fact{transition:opacity .34s ease,transform .5s cubic-bezier(.22,1,.36,1)}
.fact.is-out{opacity:0;transform:translateY(14px)}
.fact__line{display:flex;align-items:baseline;gap:12px}
.fact__k{font-size:clamp(34px,4.4vw,58px);font-weight:800;letter-spacing:-.035em;color:var(--lime);line-height:1}
.fact__tag{font-size:10.5px;letter-spacing:.14em;color:var(--moss)}
.fact__v{margin-top:10px;font-size:17px;line-height:1.45;color:#cfcbbe;text-wrap:pretty}
.fact__ticks{display:flex;gap:5px;margin-top:18px}
.fact__ticks i{width:22px;height:2px;background:#33382c;transition:background .3s;display:block}
.fact__ticks i.is-on{background:var(--lime)}
.hero__cta{display:flex;gap:11px;font-size:11.5px;letter-spacing:.08em;pointer-events:auto}
/* keep the hero buttons clear of the fixed assistant dock */
@media (min-width:641px){.hero__cta{margin-right:96px}}
.btn{padding:13px 20px;display:inline-block}
.btn--lime{background:var(--lime);color:var(--dark-panel)}
.btn--lime:hover{background:var(--on-dark);color:var(--dark-panel)}
.btn--ghost{border:1.5px solid var(--moss);color:var(--on-dark-2)}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime)}

.ticker{overflow:hidden;background:var(--ink);color:var(--on-dark);padding:12px 0;white-space:nowrap}
.ticker__run{display:inline-block;font-size:12px;letter-spacing:.26em;animation:slide 30s linear infinite}

/* ── about ──────────────────────────────────────────────────────────── */
.about__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start;margin-top:48px}
.lede{margin:0;font-size:clamp(24px,2.6vw,34px);line-height:1.28;font-weight:600;letter-spacing:-.02em;text-wrap:pretty}
.body{margin:22px 0 0;max-width:600px;font-size:17.5px;line-height:1.6;color:var(--muted);text-wrap:pretty}
.notes{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);margin-top:34px;border:1px solid var(--line)}
.note{background:var(--bg);padding:20px;transition:background .25s,color .25s}
.note:hover{background:var(--ink);color:var(--on-dark)}
.note__head{display:flex;align-items:center;gap:8px}
.note__label{font-size:10px;letter-spacing:.14em;opacity:.6}
.note__body{margin-top:10px;font-size:17px;line-height:1.5}
.about__photos{display:flex;flex-direction:column;gap:18px}
.about__pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.about__wide{display:grid;grid-template-columns:1.4fr .6fr;gap:18px;margin-top:18px}
.ph{margin:0;position:relative;overflow:hidden;background:#e6e2d8}
.ph img{display:block;width:100%;object-fit:cover;transition:transform .9s cubic-bezier(.22,1,.36,1)}
.ph:hover img{transform:scale(1.045)}
.ph--tall img{height:420px;object-position:32% 42%;filter:saturate(.94)}
.ph--sq img{height:260px;object-position:50% 42%}
.ph--wide img{height:380px;object-position:40% 45%}
.ph figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:12px 14px;
  background:linear-gradient(transparent,rgba(11,13,7,.82));color:var(--on-dark);
  font-size:10px;letter-spacing:.12em;
}

/* ── social ─────────────────────────────────────────────────────────── */
.posts{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px;margin-top:36px}
.posts iframe{width:100%;height:560px;border:1px solid rgba(22,21,15,.18);background:#fff}
.posts__note{margin-top:20px;font-size:10.5px;letter-spacing:.06em;color:oklch(0.58 0.02 90)}
.social-empty{display:grid;grid-template-columns:1.25fr .75fr;margin-top:36px;border:1px solid rgba(22,21,15,.18)}
.social-empty__l{padding:34px 32px}
.social-empty__h{font-size:clamp(21px,2.2vw,28px);font-weight:600;letter-spacing:-.02em;line-height:1.25;text-wrap:pretty}
.social-empty__p{margin:16px 0 0;max-width:520px;font-size:16.5px;line-height:1.55;color:var(--muted);text-wrap:pretty}
.social-empty__cta{display:flex;flex-wrap:wrap;gap:11px;margin-top:26px;font-size:11.5px;letter-spacing:.08em}
.social-empty__cta a:first-child{padding:12px 20px;background:var(--ink);color:var(--on-dark)}
.social-empty__cta a:first-child:hover{background:var(--rust)}
.social-empty__cta a:last-child{padding:12px 20px;border:1.5px solid var(--ink)}
.social-empty__cta a:last-child:hover{background:var(--lime)}
.social-empty__r{padding:34px 32px;border-left:1px solid rgba(22,21,15,.18);background:rgba(22,21,15,.025);display:flex;flex-direction:column;justify-content:space-between;gap:20px}
.social-empty__hint{font-size:11.5px;line-height:1.85;color:oklch(0.42 0.01 90)}

/* ── selected work ──────────────────────────────────────────────────── */
.proj{border-bottom:1px solid var(--line);transition:background .25s}
.proj:hover{background:rgba(22,21,15,.045)}
.proj.is-open{background:var(--lime)}
.proj__row{display:grid;grid-template-columns:74px 1fr auto;gap:24px;align-items:center;padding:30px 0}
.proj__num{font-size:13px;color:var(--muted-2)}
.proj__title{margin:0;font-size:clamp(24px,3.2vw,40px);font-weight:600;letter-spacing:-.02em;line-height:1.05;transition:transform .45s cubic-bezier(.22,1,.36,1)}
.proj:hover .proj__title,.proj.is-open .proj__title{transform:translateX(16px)}
.proj__plus{font-family:var(--mono);font-size:20px;color:oklch(0.45 0.02 90);transition:transform .4s cubic-bezier(.22,1,.36,1)}
.proj.is-open .proj__plus{transform:rotate(135deg)}
.proj__panel{overflow:hidden;max-height:0;transition:max-height .55s cubic-bezier(.22,1,.36,1)}
.proj__grid{display:grid;grid-template-columns:74px 1fr 280px;gap:24px;padding:0 0 34px}
.proj__body{margin:0;max-width:660px;font-size:17.5px;line-height:1.55;color:oklch(0.34 0.01 90);text-wrap:pretty}
.proj__points{list-style:disc outside;padding-left:20px;margin:18px 0 0;max-width:660px}
.proj__point{font-size:15.5px;line-height:1.5;color:oklch(0.40 0.01 90);margin-top:8px}
.proj__point:first-child{margin-top:0}
.proj__point::marker{color:var(--rust)}
.proj__links{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px}
.proj__link{font-size:11px;letter-spacing:.1em;border-bottom:1.5px solid var(--ink);padding-bottom:3px;white-space:nowrap}
.proj__tags{display:flex;flex-wrap:wrap;gap:7px;align-content:flex-start}
.proj__tags span{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;border:1px solid rgba(22,21,15,.32);border-radius:20px;padding:5px 11px}

/* ── experience ─────────────────────────────────────────────────────── */
.job{display:grid;grid-template-columns:180px 1fr;gap:28px;padding:36px 0;border-bottom:1px solid var(--line)}
.job--last{border-bottom:none}
.job__when{font-size:12px;color:var(--muted-2);letter-spacing:.06em}
.job__when div{margin-top:6px}
.job__title{margin:0;font-size:28px;font-weight:600;letter-spacing:-.02em}
.job__sub{margin-top:8px;font-size:16.5px;color:oklch(0.38 0.01 90)}
.job__list{margin:14px 0 0;padding-left:18px;max-width:760px;font-size:16.5px;line-height:1.6;color:oklch(0.38 0.01 90);display:flex;flex-direction:column;gap:9px}

/* ── research ───────────────────────────────────────────────────────── */
.papers{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:26px;margin-top:36px}
.paper{border:1px solid #34322b;border-radius:4px;padding:26px;transition:border-color .25s,background .25s}
.paper:hover{border-color:var(--lime);background:#1c1b15}
.paper__meta{display:flex;justify-content:space-between;gap:12px;font-size:10.5px;letter-spacing:.1em;color:var(--lime)}
.paper__title{margin:14px 0 0;font-size:24px;font-weight:600;line-height:1.25;letter-spacing:-.01em}
.paper__authors{margin-top:14px;font-size:15px;color:#a8a397;line-height:1.5}
.paper__where{margin-top:16px;font-size:11px;color:var(--on-dark-3);letter-spacing:.06em}

/* ── strengths ──────────────────────────────────────────────────────── */
.claims{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;margin-top:12px}
.claim{border-bottom:1px solid var(--line);padding:28px 0}
.claim__head{display:flex;align-items:baseline;gap:12px}
.claim__n{font-size:11px;color:oklch(0.58 0.02 90)}
.claim__t{font-size:27px;font-weight:600;letter-spacing:-.02em;line-height:1.1}
.claim__b{margin-top:10px;font-size:16.5px;line-height:1.5;color:var(--muted);text-wrap:pretty}
.claim__tags{margin-top:14px;font-size:10.5px;letter-spacing:.08em;color:oklch(0.52 0.02 90)}

/* ── ask / assistant ────────────────────────────────────────────────── */
.ask{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;margin-top:44px;align-items:start}
.ask__lede{margin:24px 0 0;font-size:clamp(19px,2vw,24px);line-height:1.4;font-weight:500;color:var(--on-dark-2);text-wrap:pretty}
.ask__index{margin-top:24px;font-size:11px;line-height:1.9;color:var(--moss);letter-spacing:.04em}
.ask__sources{margin-top:10px;font-size:10.5px;line-height:1.8;color:var(--hair-dark);letter-spacing:.04em}
.ask__panel{border:1px solid var(--hair-dark);display:flex;flex-direction:column}

.bot-mark{
  display:block;width:26px;height:26px;flex:none;
  background:currentColor;color:var(--lime);
  -webkit-mask:var(--bot-mask) center/contain no-repeat;mask:var(--bot-mask) center/contain no-repeat;
}
.bot-mark--dark{color:var(--dark-panel);width:34px;height:34px}
.bot-mark--xl{width:76px;height:76px}
:root{
  --bot-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'%3E%3Cg fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='30' cy='30' r='11'/%3E%3Ccircle cx='9' cy='14' r='3.6'/%3E%3Ccircle cx='52' cy='16' r='3.6'/%3E%3Ccircle cx='11' cy='47' r='3.6'/%3E%3Ccircle cx='50' cy='45' r='3.6'/%3E%3Cpath d='M21 24L12 17M40 25L49 19M21 37L14 44M39 36L47 42'/%3E%3Cpath d='M25.5 35c3 2.4 6 2.4 9 0'/%3E%3C/g%3E%3Ccircle cx='26' cy='28' r='2.3' fill='%23000'/%3E%3Ccircle cx='34' cy='28' r='2.3' fill='%23000'/%3E%3C/svg%3E");
}

.bot-dock{position:fixed;right:24px;bottom:24px;z-index:400;display:flex;flex-direction:column;align-items:flex-end;gap:14px}
.bot-panel{
  width:min(390px,calc(100vw - 48px));max-height:calc(100vh - 130px);background:var(--dark);
  border:1px solid var(--hair-dark);box-shadow:0 30px 70px -26px rgba(11,13,7,.8);
  display:flex;flex-direction:column;overflow:hidden;
}
.bot-panel[hidden]{display:none}
.bot-panel__head{flex:none;display:flex;align-items:center;gap:11px;padding:14px 16px;border-bottom:1px solid var(--hair-darker)}
.bot-panel__id{flex:1;min-width:0}
.bot-panel__name{font-size:15px;font-weight:600;color:var(--on-dark);letter-spacing:-.01em}
.bot-panel__status{font-size:9.5px;letter-spacing:.1em;color:var(--moss)}
.bot-panel__close{font-family:var(--mono);font-size:14px;color:var(--on-dark-3);padding:2px 6px}
.bot-panel__close:hover{color:var(--on-dark)}

.bot-log{flex:1;min-height:0;max-height:320px;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}
.bot-log--tall{min-height:230px;max-height:340px;padding:20px;gap:13px}
.msg{max-width:86%;padding:10px 13px;font-size:14.5px;line-height:1.5;border:1px solid var(--hair-dark);color:var(--on-dark-2);align-self:flex-start;white-space:pre-wrap}
.msg--you{align-self:flex-end;background:var(--lime);color:var(--dark-panel);border-color:var(--lime)}
.msg__cite{display:block;margin-top:7px;font-family:var(--mono);font-size:9.5px;letter-spacing:.08em;color:var(--moss)}
.thinking{align-self:flex-start;font-family:var(--mono);font-size:11px;color:var(--moss);letter-spacing:.08em}
.thinking span{animation:blink 1s steps(1) infinite}

.bot-foot{flex:none;padding:12px 16px 16px;border-top:1px solid var(--hair-darker);display:flex;flex-direction:column;gap:10px}
.ask__panel .bot-foot{padding:16px 20px 20px}
.bot-starters{display:flex;flex-wrap:wrap;gap:6px}
.bot-starters button{
  font-family:var(--mono);font-size:10px;letter-spacing:.04em;border:1px solid var(--hair-dark);
  color:#b6b3a6;padding:5px 9px;transition:border-color .2s,color .2s;text-align:left;
}
.bot-starters button:hover{border-color:var(--lime);color:var(--lime)}
.bot-input{display:flex;align-items:center;gap:9px;border:1.5px solid var(--hair-dark);padding:9px 11px}
.bot-input__caret{font-size:12px;color:var(--lime)}
.bot-input input{flex:1;min-width:0;background:transparent;border:none;color:var(--on-dark);font-size:14px;font-family:var(--mono);caret-color:var(--lime)}
.bot-input input::placeholder{color:var(--hair-dark)}
.bot-input__send{font-size:10px;letter-spacing:.08em;background:var(--lime);color:var(--dark-panel);padding:6px 10px}

.bot-fab{position:relative;animation:drift 4.6s ease-in-out infinite;align-self:flex-end}
.bot-fab__pulse{position:absolute;inset:-13px;border-radius:50%;background:var(--lime);animation:pulse 3.2s ease-in-out infinite;pointer-events:none}
.bot-fab__disc{
  position:relative;width:62px;height:62px;border-radius:50%;background:var(--lime);
  border:1.5px solid var(--ink);display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 30px -12px rgba(11,13,7,.55);
}
.bot-fab__tip{
  position:absolute;right:74px;top:50%;transform:translateY(-50%);white-space:nowrap;
  background:var(--dark);color:var(--on-dark);font-size:10px;letter-spacing:.08em;padding:7px 11px;
}
.bot-fab__tip[hidden]{display:none}

/* ── contact ────────────────────────────────────────────────────────── */
.contact{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:36px}
.contact__kicker{font-size:12px;letter-spacing:.14em;color:var(--muted-2)}
.contact__h{margin:18px 0 0;font-size:clamp(40px,7vw,104px);font-weight:800;letter-spacing:-.035em;line-height:.95}
.bobbing{display:inline-block;animation:bob 2.4s ease-in-out infinite;margin-left:.12em}
.contact__links{display:flex;flex-direction:column;gap:12px;font-size:13px;letter-spacing:.04em}
.contact__links a{border-bottom:1.5px solid var(--ink);padding-bottom:6px}
.contact__foot{display:flex;justify-content:space-between;gap:16px;margin-top:76px;font-size:10.5px;letter-spacing:.1em;color:var(--muted-2)}

/* ── responsive ─────────────────────────────────────────────────────── */
@media (max-width:960px){
  .about__grid,.ask,.social-empty{grid-template-columns:1fr;gap:36px}
  .about__wide{grid-template-columns:1fr}
  .claims{grid-template-columns:1fr;gap:0}
  /* 44px num column + 14px gap + 16px open-state title slide (see .proj.is-open .proj__title) */
  .proj__grid{grid-template-columns:1fr;gap:16px;padding-left:74px;padding-right:24px}
  .proj__spacer{display:none}
  .proj__row{grid-template-columns:44px 1fr auto;gap:14px}
  .job{grid-template-columns:1fr;gap:12px}
  .social-empty__r{border-left:none;border-top:1px solid rgba(22,21,15,.18)}
  .ph--tall img{height:340px}
}
@media (max-width:640px){
  .sec,.sec--about,.sec--work,.sec--contact{padding-left:18px;padding-right:18px}
  .proj__grid{padding-right:18px}
  .notes,.about__pair{grid-template-columns:1fr}
  .hero__inner{padding:18px 18px 26px}
  .hero__h1{min-height:3.7em}
  .bot-dock{right:14px;bottom:14px}
  .bot-fab__tip{display:none}
  .secmark{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}