/* ============================================================
   mitanshu.dev — plain, media-first.
   One dark theme. Videos are the content; everything else
   stays out of their way.
   ============================================================ */

:root {
  --bg: #131110;
  --bg-elev: #1C1815;
  --ink: #EDE8E2;
  --muted: #A39B92;
  --line: #2E2925;         /* decorative rules */
  --line-strong: #756B60;  /* interactive borders (≥3:1 on bg) */
  --accent: #FF6A2B;
  --accent-ink: #131110;
  --ok: #58B380;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Liberation Sans", Arial, sans-serif;

  /* type scale — one system instead of hand-picked px */
  --step-000: 0.6875rem;   /* 11px   mono micro-labels */
  --step-00:  0.78125rem;  /* 12.5px mono body / skill lines */
  --step-0:   1rem;        /* 16px   body */
  --step-1:   clamp(0.95rem, 0.9rem + 0.3vw, 1.0625rem); /* card copy, hero sub */
  --step-2:   1.1875rem;   /* 19px   card title */
  --step-3:   clamp(1.6rem, 1.2rem + 2vw, 2.75rem);      /* section head */
  --step-4:   clamp(2.4rem, 1.5rem + 4.4vw, 4.9rem);     /* hero */

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --accent-glow: rgba(255, 106, 43, 0.4);                                /* fallback */
  --accent-glow: color-mix(in oklab, var(--accent) 40%, transparent);
}

@font-face {
  font-family: "LSN Display";
  src: url("../fonts/lsn-bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

* { box-sizing: border-box; }

html { background: var(--bg); scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* One quiet layer of film grain over the flat dark field — its job is to kill
   gradient banding on #131110 and give the surface a little tactile texture.
   Fixed, behind content (z-index:-1), never intercepts clicks; nothing repaints
   on scroll. No ambient color glow — a warm halo behind the text would just be
   mood with no referent, which is the exact look this site is trying not to be. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 clamp(18px, 4vw, 40px); position: relative; z-index: 0; }

/* keyboard skip link */
.skip { position: absolute; left: -9999px; top: 0; }
.skip:focus {
  left: 8px; top: 8px; z-index: 100;
  background: var(--accent); color: var(--accent-ink);
  font-family: var(--mono); font-size: var(--step-000); letter-spacing: 0.06em;
  text-transform: uppercase; padding: 8px 12px; border: none;
}

a { color: inherit; text-decoration: none; border-bottom: 1px solid var(--accent); transition: color 140ms var(--ease), background-color 140ms var(--ease); }
a:hover { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
/* keep the solid orange swap only where it reads as a button — chips & CTA link rows */
a.chip:hover, .contact-links a:hover { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

p { margin: 0 0 1em; }

.display {
  font-family: "LSN Display", var(--sans);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 0.95;
  letter-spacing: 0.005em;
  text-wrap: balance;
  margin: 0;
}

/* ---------- header ---------- */
.site-head {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.brand { border: none; display: flex; flex-direction: column; gap: 2px; }
.brand:hover { background: none; color: inherit; }
.brand .name {
  font-family: "LSN Display", var(--sans);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 18px;
  letter-spacing: 0.03em;
}
.brand .role {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-transform: uppercase;
}
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.site-nav a { border-bottom-color: transparent; padding: 8px 2px; margin: -4px 0; }
.site-nav a:hover { background: none; color: var(--accent); border-bottom-color: var(--accent); }

/* ---------- hero ---------- */
/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: clamp(40px, 6vw, 72px) clamp(14px, 2.5vw, 30px) clamp(30px, 4vw, 46px);
  margin-top: clamp(8px, 2vw, 18px);
}

/* fiducial corner brackets framing the hero — a simple, honest lab motif */
.vf { position: absolute; width: 22px; height: 22px; z-index: 1; pointer-events: none; border: 0 solid var(--accent); opacity: 0.9; }
.vf-tl { top: 0; left: 0; border-top-width: 2px; border-left-width: 2px; }
.vf-tr { top: 0; right: 0; border-top-width: 2px; border-right-width: 2px; }
.vf-bl { bottom: 0; left: 0; border-bottom-width: 2px; border-left-width: 2px; }
.vf-br { bottom: 0; right: 0; border-bottom-width: 2px; border-right-width: 2px; }

/* hero: a big-type statement + a numbered experience index, framed by fiducials */
.hero-stamp {
  position: relative; z-index: 1;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 clamp(26px, 4vw, 44px);
}
.hero-stamp .hs-name { color: var(--ink); letter-spacing: 0.14em; }
.hero-stamp .hs-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px rgba(255, 106, 43, 0.22); }

.hero-main {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.25fr 0.75fr; gap: clamp(26px, 4vw, 60px); align-items: start;
}
.hero-eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 clamp(16px, 2vw, 22px);
}
.hero-claim {
  font-family: "LSN Display", var(--sans);
  font-weight: 700;
  font-size: clamp(38px, 6.4vw, 80px);
  line-height: 0.98; letter-spacing: -0.01em;
  color: var(--ink); margin: 0; max-width: 15ch;
}
.hero-claim em { font-style: italic; color: var(--accent); }
.hero-sub {
  font-size: var(--step-1); line-height: 1.5; color: var(--muted);
  max-width: 52ch; margin: clamp(20px, 3vw, 30px) 0 0;
}
.hero-sub b { color: var(--ink); font-weight: 600; }

.hero-index {
  position: relative;
  border: 1px solid var(--line-strong); border-radius: 5px;
  padding: clamp(14px, 1.6vw, 20px) clamp(16px, 1.8vw, 22px);
}
.hi-cap {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 4px;
}
.hi-row {
  display: grid; grid-template-columns: auto 1fr auto; gap: 3px 12px; align-items: baseline;
  padding: 13px 0; border-top: 1px solid var(--line); border-bottom: none; color: var(--muted);
  text-decoration: none;
}
.hi-row:first-of-type { border-top: none; }
.hi-no { font-family: var(--mono); font-size: 11px; color: var(--accent); }
.hi-co { font-size: 15px; color: var(--ink); }
.hi-yr { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.hi-ro { grid-column: 2 / 4; font-family: var(--mono); font-size: 11px; letter-spacing: 0.01em; color: var(--muted); margin-top: 2px; }
.hi-row:hover .hi-co, .hi-row:focus-visible .hi-co { color: var(--accent); }

.hero-foot {
  position: relative; z-index: 1;
  display: flex; gap: clamp(14px, 2.4vw, 26px); flex-wrap: wrap;
  font-family: var(--mono); font-size: 12px;
  margin-top: clamp(26px, 4vw, 46px); padding-top: 16px; border-top: 1px solid var(--line);
}
.hero-foot a { color: var(--muted); border-bottom: none; }
.hero-foot a:hover { color: var(--accent); }

@media (max-width: 820px) {
  .hero-main { grid-template-columns: 1fr; gap: 28px; }
}
h1.display { font-size: var(--step-4); margin: 0 0 26px; }
.hero-cta { display: inline-block; font-family: var(--mono); font-size: var(--step-000); letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); border: 1px solid var(--accent); border-radius: 2px; padding: 9px 15px; margin-top: 26px; }
.hero-cta:hover { background: var(--accent); color: var(--accent-ink); }

/* ---------- sections ---------- */
section.block { padding: clamp(30px, 5vw, 54px) 0; }
section.block + section.block { border-top: 1px solid var(--line); }
h2.display { font-size: clamp(26px, 4.4vw, 44px); margin: 0 0 14px; }
h2.display.sm { font-size: clamp(20px, 3vw, 30px); }
.block .lede { color: var(--muted); max-width: 62ch; margin: 0 0 28px; }

/* ---------- org filter: doubles as the experience index ---------- */
.org-filter { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 26px; }
.ofil {
  -webkit-appearance: none;
  appearance: none;
  margin: 0;
  line-height: 1.2;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  padding: 7px 12px;
  cursor: pointer;
  transition: color 140ms var(--ease), background-color 140ms var(--ease), border-color 140ms var(--ease);
}
.ofil:hover { color: var(--ink); border-color: var(--ink); }
.ofil:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.ofil[aria-pressed="true"] { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
.ofil .ct { opacity: 0.55; font-size: 10px; margin-left: 3px; }
.ofil[aria-pressed="true"] .ct { opacity: 0.75; }
.work-card.is-filtered { display: none; }
.org-blurb { margin: -14px 0 26px; color: var(--muted); font-size: var(--step-1); max-width: 68ch; }
.grid-empty { margin: 20px 0 0; color: var(--muted); font-size: var(--step-1); }

/* ---------- work grid ---------- */
/* flex (not grid) so an incomplete last row centers instead of leaving a hole */
.work-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}
.work-card {
  position: relative;
  flex: 1 1 320px;
  max-width: 380px;
  min-width: 0;
  border: 1px solid var(--line);
  background: var(--bg-elev);                                             /* fallback */
  background: linear-gradient(180deg, color-mix(in oklab, var(--accent) 3%, var(--bg-elev)), var(--bg-elev));
  display: flex;
  flex-direction: column;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}
.work-card:hover, .work-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 18px 42px -20px var(--accent-glow), 0 12px 28px rgba(0, 0, 0, 0.5);
}
/* media zooms inside its frame; fiducials + the more-link catch the accent */
.work-card .media { overflow: hidden; position: relative; z-index: 2; }
.work-card .media video, .work-card .media img { transition: transform 400ms var(--ease); }
.work-card:hover .media video, .work-card:focus-within .media video,
.work-card:hover .media img, .work-card:focus-within .media img { transform: scale(1.045); }
.work-card:hover .media::before, .work-card:hover .media::after,
.work-card:focus-within .media::before, .work-card:focus-within .media::after { border-color: var(--accent); }
.work-card:hover .more-link, .work-card:focus-within .more-link { color: var(--accent); }
.work-card:focus-within { outline: none; }

.media { position: relative; background: #000; }
.media video, .media img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; background: #000; }
.media video:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
/* viewfinder fiducials — lab-camera registration marks */
.media::before, .media::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 0 solid rgba(237, 232, 226, 0.5);
  pointer-events: none;
  z-index: 1;
}
.media::before { top: 8px; left: 8px; border-top-width: 1px; border-left-width: 1px; }
.media::after { bottom: 8px; right: 8px; border-bottom-width: 1px; border-right-width: 1px; }

/* network stall: the top-left fiducial becomes a BUFFERING tick */
.media.is-buffering::before, .main-video.is-buffering::before {
  content: "BUFFERING";
  width: auto;
  height: auto;
  border: 0;
  padding: 3px 7px;
  background: rgba(19, 17, 16, 0.82);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  animation: buffering-pulse 1.2s ease-in-out infinite;
}
@keyframes buffering-pulse { 50% { opacity: 0.45; } }


.card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-body h3 { margin: 0; font-size: var(--step-2); font-weight: 700; letter-spacing: 0.01em; line-height: 1.2; }
.card-body h3 a { border-bottom: none; }
.card-body h3 a:hover { color: var(--accent); background: none; }
/* stretched link: the whole card opens the project; the video stays interactive */
.card-body h3 a::after { content: ""; position: absolute; inset: 0; z-index: 1; }
.card-body p { font-size: var(--step-1); color: var(--muted); margin: 0; line-height: 1.55; }
.card-body p b { color: var(--ink); font-weight: 600; }
.gh-list { position: relative; z-index: 1; }
.chips, .more-link { position: relative; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 8px; }
.chip {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.05em;
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 4px 9px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.chip.hot { color: var(--accent); border-color: var(--accent); }
a.chip { border-color: var(--line-strong); }
.more-link { font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; }

/* "more on github" card */
.gh-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.gh-list li { border-top: 1px solid var(--line); padding: 10px 2px; font-size: 14px; }
.gh-list li:first-child { border-top: none; }
.gh-list .what { color: var(--muted); }


/* ---------- contact ---------- */
footer.site-foot .foot-reach {
  font-family: var(--sans);
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0;
  text-transform: none;
  max-width: none;
  margin: 0;
  color: var(--ink);
}
footer.site-foot .foot-reach a { color: var(--accent); border-bottom: 1px solid color-mix(in oklab, var(--accent) 45%, transparent); }
footer.site-foot .foot-reach a:hover { border-bottom-color: var(--accent); }
.foot-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.03em;
}
.foot-contact a { color: var(--muted); border-bottom: 1px solid transparent; padding: 2px 0; }
.foot-contact a:hover { color: var(--accent); border-bottom-color: currentColor; }
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.01em;
  text-transform: none;
  margin-top: 0;
}
.contact-links a { padding: 8px 2px; margin: -4px 0; }

footer.site-foot {
  border-top: 1px solid var(--line);
  padding: 30px 0 56px;
  margin-top: 26px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
footer.site-foot .contact-links { margin: 0; }
/* proper footer: brand + contact/profiles up top, colophon + back-to-top baseline */
.foot-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px 40px; }
.foot-brand { display: flex; flex-direction: column; gap: 3px; }
.foot-name { font-family: "LSN Display", var(--sans); font-weight: 700; text-transform: uppercase; letter-spacing: 0.02em; font-size: 16px; line-height: 1; }
.foot-role { font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; color: var(--muted); text-transform: uppercase; }
.foot-base { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px 20px; }
.foot-base a { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; border-bottom: none; color: var(--muted); }
.foot-base a:hover { color: var(--accent); }
.foot-base-nav { display: inline-flex; gap: 18px; }
footer.site-foot p {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
  margin: 0;
}

/* ---------- project detail pages ---------- */
.crumb {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-block;
  margin: 22px 0 16px;
  padding: 8px 2px;
}
.project-head h1.display { font-size: clamp(30px, 5.4vw, 58px); }
.project-head .lede { color: var(--muted); max-width: 62ch; margin: 4px 0 0; font-size: var(--step-1); }
.meta-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0 20px; }
.main-video { position: relative; border: 1px solid var(--line-strong); background: #000; }
.main-video video { display: block; width: 100%; height: auto; }
/* portrait phone footage: cap the height and letterbox instead of a wall-tall player */
/* standalone portrait clip: the frame hugs the video (centered) instead of
   sitting in a wide black letterbox on desktop */
.main-video.portrait { display: flex; justify-content: center; width: fit-content; max-width: 100%; margin-inline: auto; }
.main-video.portrait video { width: auto; max-width: 100%; height: auto; max-height: 74vh; }
@media (max-width: 640px) { .main-video.portrait video { max-height: 86vh; } }
.main-video::before, .main-video::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 0 solid rgba(237, 232, 226, 0.5);
  pointer-events: none;
  z-index: 1;
}
.main-video::before { top: 10px; left: 10px; border-top-width: 1px; border-left-width: 1px; }
.main-video::after { bottom: 10px; right: 10px; border-bottom-width: 1px; border-right-width: 1px; }
/* a video beside its own heading + description; sides alternate down the page */
.media-row { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 3.5vw, 46px); align-items: center; }
.media-row + .media-row { margin-top: clamp(30px, 4.5vw, 56px); }
.media-row .mr-text h2 { margin: 0 0 14px; }
.media-row .mr-text p { color: var(--muted); margin: 0 0 12px; }
.media-row .mr-text p:last-child { margin-bottom: 0; }
.media-row .mr-text b { color: var(--ink); font-weight: 600; }
.media-row.reverse .mr-media { order: 2; }
/* portrait clip sits centered in its half and is capped so it doesn't tower over the text */
.media-row .main-video.portrait video { max-height: 56vh; }
@media (max-width: 760px) {
  .media-row { grid-template-columns: 1fr; gap: 16px; align-items: start; }
  .media-row.reverse .mr-media { order: 0; }
}

.prose { max-width: 68ch; }
.prose h2 {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 30px 0 10px;
  font-weight: 600;
}
.prose p, .prose li { font-size: 15px; }
.prose ul { margin: 0 0 1em; padding-left: 20px; }
.prose li { margin: 4px 0; }

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
  gap: 14px;
  margin-top: 10px;
}
.gallery figure { margin: 0; border: 1px solid var(--line); background: var(--bg-elev); }
.gallery video, .gallery img { display: block; width: 100%; height: auto; background: #000; }
.gallery figcaption {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 8px 10px;
}

/* ---------- cv page ---------- */
.cv { max-width: 760px; }
.cv h1.display { font-size: clamp(26px, 4.4vw, 44px); margin: 0 0 14px; }
.cv h2.display.sm { margin-top: 34px; }

/* ---------- 404 ---------- */
.err-code { font-size: clamp(64px, 14vw, 140px); }
.cv-item { border-top: 1px solid var(--line); padding: 12px 0; }
.cv-item:last-child { border-bottom: 1px solid var(--line); }
.cv-item .row1 { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px; }
.cv-item .row1 b { font-size: 15px; }
.cv-item .when { font-family: var(--mono); font-size: 11px; color: var(--muted); letter-spacing: 0.05em; }
.cv-item p { font-size: 14px; color: var(--muted); margin: 4px 0 0; }
.print-hint { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.07em; color: var(--muted); text-transform: uppercase; }

/* ---------- scroll reveal: staggered, and safe with no JS or reduced motion ----------
   Elements only hide once .reveal-on is set (by an inline head script), so if scripting
   fails they render normally. Stagger comes from --i on each element. */
.reveal-on .reveal {
  opacity: 0;
  translate: 0 20px;   /* the individual 'translate' property, so it composes with
                          the card's hover 'transform' lift instead of overriding it */
  transition: opacity 0.6s var(--ease), translate 0.6s var(--ease);
  transition-delay: calc(min(var(--i, 0), 8) * 55ms);
}
.reveal-on .reveal.is-in { opacity: 1; translate: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal-on .reveal { opacity: 1; translate: none; transition: none; }
}

@media print {
  :root { --bg: #ffffff; --bg-elev: #ffffff; --ink: #111; --muted: #444; --line: #bbb; --line-strong: #888; --accent: #b33d10; --ok: #1d6b41; }
  body { font-size: 12px; }
  .site-head, .site-nav, footer.site-foot, .print-hint { display: none; }
  a { border-bottom: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}