/* Ganesh Chandan portfolio — editorial engineering system */
:root {
  --paper: #f2efe8;
  --paper-deep: #e8e3da;
  --ink: #171715;
  --muted: #6e6a62;
  --line: rgba(23, 23, 21, 0.2);
  --signal: #ef4d2f;
  --signal-soft: #ffb6a7;
  --night: #191a19;
  --white: #faf8f2;
  --acid: #d7ff52;
  --sans: "Instrument Sans", "Arial Narrow", Arial, sans-serif;
  --serif: "Newsreader", Georgia, serif;
  --mono: "DM Mono", ui-monospace, monospace;
  --page: min(1440px, calc(100% - 64px));
  --ease: cubic-bezier(.2,.75,.25,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}
::selection { background: var(--signal); color: var(--white); }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 76px;
  padding: 0 max(32px, calc((100vw - 1440px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(242, 239, 232, 0.9);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(14px);
  transition: border-color .25s ease, background .25s ease;
}
.site-header.is-scrolled { border-color: var(--line); }
.wordmark { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 650; }
.wordmark-mark {
  display: grid;
  width: 37px;
  height: 37px;
  place-items: center;
  background: var(--ink);
  color: var(--paper);
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: -.04em;
}
.wordmark-name { letter-spacing: -.02em; }
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a {
  position: relative;
  font-family: var(--mono);
  font-size: 12px;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.site-nav a::after {
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .25s var(--ease);
}
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.menu-toggle { display: none; }

.hero {
  width: var(--page);
  min-height: 100svh;
  margin: 0 auto;
  padding: 132px 0 34px;
  display: flex;
  flex-direction: column;
}
.hero-kicker { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 5px rgba(239, 77, 47, .13); }
.hero-grid { flex: 1; display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(310px, .6fr); gap: clamp(40px, 7vw, 120px); align-items: center; }
.hero-copy h1, .section h2, .contact-section h2 {
  margin: 0;
  font-size: clamp(60px, 8.2vw, 132px);
  font-weight: 600;
  line-height: .82;
  letter-spacing: -.075em;
  text-wrap: balance;
}
.hero-copy h1 em, .section h2 em, .contact-section h2 em { font-family: var(--serif); font-weight: 500; }
.hero-copy h1 em { color: var(--signal); }
.hero-summary { max-width: 690px; margin: 48px 0 0; font-size: clamp(18px, 1.45vw, 23px); line-height: 1.5; letter-spacing: -.02em; }
.hero-actions { margin-top: 36px; display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.button {
  min-height: 50px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  border: 1px solid var(--ink);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
  transition: background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
}
.button:hover { transform: translateY(-3px); }
.button-primary { background: var(--ink); color: var(--white); }
.button-primary:hover { background: var(--signal); border-color: var(--signal); }
.text-link { font-family: var(--mono); font-size: 12px; text-underline-offset: 5px; text-decoration-thickness: 1px; }

.signal-board { position: relative; padding: 26px 0 0; border-top: 1px solid var(--ink); align-self: center; overflow: hidden; }
.eyebrow { margin: 0 0 22px; font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .09em; }
.signal-board dl { margin: 0; }
.signal-board dl > div { padding: 18px 0; display: grid; grid-template-columns: 85px 1fr; gap: 18px; border-top: 1px solid var(--line); }
.signal-board dl > div:first-child { border-top: 0; }
.signal-board dt { font-family: var(--mono); font-size: 10px; text-transform: uppercase; color: var(--muted); }
.signal-board dd { margin: 0; font-size: 14px; line-height: 1.4; }
.signal-orbit { height: 160px; position: relative; margin-top: 20px; background: var(--signal); overflow: hidden; }
.signal-orbit::before, .signal-orbit::after, .signal-orbit span { content: ""; position: absolute; border: 1px solid rgba(23, 23, 21, .75); border-radius: 50%; }
.signal-orbit::before { width: 230px; height: 230px; left: -30px; top: 30px; }
.signal-orbit::after { width: 90px; height: 90px; right: 25px; top: 20px; background: var(--ink); }
.signal-orbit span:nth-child(1) { width: 16px; height: 16px; top: 22px; left: 28px; background: var(--acid); }
.signal-orbit span:nth-child(2) { width: 140px; height: 140px; right: -76px; bottom: -70px; }
.signal-orbit span:nth-child(3) { width: 5px; height: 5px; left: 48%; bottom: 34px; background: var(--ink); }
.hero-index { padding-top: 20px; display: flex; justify-content: space-between; border-top: 1px solid var(--line); color: var(--muted); font-family: var(--mono); font-size: 9px; text-transform: uppercase; letter-spacing: .1em; }

.section { padding: clamp(90px, 10vw, 160px) max(32px, calc((100vw - 1440px) / 2)); }
.work-section { background: var(--night); color: var(--white); }
.section-intro { display: grid; grid-template-columns: 160px minmax(0, 1.2fr) minmax(260px, .45fr); gap: 40px; align-items: end; margin-bottom: 90px; }
.section-intro h2, .section-heading h2, .research-statement h2 { font-size: clamp(48px, 6.8vw, 104px); }
.section-intro p:last-child { margin: 0; color: #aaa9a2; font-size: 17px; }
.project-list { border-top: 1px solid rgba(255,255,255,.35); }
.project { border-bottom: 1px solid rgba(255,255,255,.24); }
.project-link { padding: 32px 0; display: grid; grid-template-columns: 80px minmax(0, 1fr) 50px; gap: 30px; text-decoration: none; transition: color .3s var(--ease), padding .3s var(--ease); }
.project-link:hover, .project-link:focus-visible { color: var(--acid); padding-left: 14px; padding-right: 14px; }
.project-number { font-family: var(--mono); font-size: 10px; padding-top: 12px; color: #94948f; }
.project-main { display: grid; grid-template-columns: minmax(240px, .65fr) minmax(280px, 1fr); gap: 40px; align-items: start; }
.project-title { font-size: clamp(30px, 3.4vw, 55px); font-weight: 550; letter-spacing: -.045em; line-height: 1.05; }
.project-description { max-width: 650px; color: #b8b7b0; font-size: 15px; line-height: 1.55; }
.tag-row { grid-column: 2; display: flex; gap: 8px; flex-wrap: wrap; }
.tag-row span { border: 1px solid rgba(255,255,255,.25); padding: 6px 9px; color: #cccac2; font-family: var(--mono); font-size: 9px; text-transform: uppercase; }
.project-arrow { justify-self: end; font-size: 25px; transition: transform .3s var(--ease); }
.project-link:hover .project-arrow { transform: translate(4px, -4px); }
.button-dark { margin-top: 54px; border-color: rgba(255,255,255,.45); color: var(--white); }
.button-dark:hover { background: var(--acid); border-color: var(--acid); color: var(--ink); }

.experience-section { display: grid; grid-template-columns: minmax(300px, .8fr) minmax(480px, 1.2fr); gap: clamp(60px, 10vw, 180px); }
.section-heading { position: sticky; top: 130px; align-self: start; }
.section-heading h2 { letter-spacing: -.065em; }
.section-heading h2 em { color: var(--signal); }
.timeline { border-top: 1px solid var(--ink); }
.timeline-item { padding: 30px 0 56px; display: grid; grid-template-columns: 150px 1fr; gap: 40px; border-bottom: 1px solid var(--line); }
.timeline-meta { display: flex; flex-direction: column; gap: 4px; font-family: var(--mono); font-size: 9px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.timeline-copy h3 { margin: 0; font-size: clamp(27px, 2.3vw, 38px); line-height: 1.1; letter-spacing: -.04em; }
.timeline-place { margin: 7px 0 20px; font-family: var(--mono); font-size: 11px; color: var(--signal); text-transform: uppercase; }
.timeline-copy > p:last-child { margin: 0; max-width: 620px; color: var(--muted); }

.research-section { background: var(--signal); }
.research-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(60px, 10vw, 170px); align-items: start; }
.research-statement h2 { letter-spacing: -.065em; }
.research-statement > p:last-child { max-width: 610px; margin: 40px 0 0; font-size: clamp(18px, 1.5vw, 23px); }
.publication { position: relative; padding: 34px; background: var(--paper); box-shadow: 14px 14px 0 var(--ink); }
.publication-mark { position: absolute; right: 28px; top: 22px; font-family: var(--serif); font-size: 50px; font-style: italic; color: var(--signal); }
.publication-list { margin: 52px 0 0; padding: 0; list-style: none; counter-reset: papers; }
.publication-list li { counter-increment: papers; border-top: 1px solid var(--line); }
.publication-list li::before { display: block; margin-top: 14px; color: var(--signal); font-family: var(--mono); font-size: 9px; content: "0" counter(papers); }
.publication-list a { padding: 5px 0 18px; display: grid; gap: 7px; text-decoration: none; }
.publication-list strong { font-size: clamp(20px, 2vw, 29px); font-weight: 560; line-height: 1.08; letter-spacing: -.035em; }
.publication-list span { color: var(--muted); font-family: var(--mono); font-size: 9px; text-transform: uppercase; letter-spacing: .04em; }
.publication-list a:hover strong, .publication-list a:focus-visible strong { color: var(--signal); }
.education-strip { margin-top: 110px; padding-top: 30px; display: grid; grid-template-columns: 25% 1fr; border-top: 1px solid var(--ink); }
.education-strip h3 { margin: 0; max-width: 900px; font-size: clamp(25px, 3vw, 46px); line-height: 1.1; letter-spacing: -.045em; }
.education-strip div p { margin: 12px 0 0; }

.contact-section { padding: clamp(100px, 12vw, 190px) max(32px, calc((100vw - 1440px) / 2)); background: var(--night); color: var(--white); }
.contact-section h2 { max-width: 1200px; font-size: clamp(54px, 8vw, 126px); }
.contact-section h2 em { color: var(--signal-soft); }
.contact-row { margin-top: 70px; padding-top: 26px; border-top: 1px solid rgba(255,255,255,.35); display: flex; justify-content: space-between; align-items: center; gap: 30px; }
.button-light { background: var(--white); border-color: var(--white); color: var(--ink); }
.button-light:hover { background: var(--acid); border-color: var(--acid); }
.social-links { display: flex; gap: 28px; }
.social-links a { font-family: var(--mono); font-size: 11px; text-transform: uppercase; text-underline-offset: 5px; }
.site-footer { min-height: 90px; padding: 0 max(32px, calc((100vw - 1440px) / 2)); display: flex; justify-content: space-between; align-items: center; background: var(--night); color: #8f8e88; border-top: 1px solid rgba(255,255,255,.15); font-family: var(--mono); font-size: 9px; text-transform: uppercase; letter-spacing: .07em; }

.reveal { opacity: 1; transform: none; }
.reveal.is-visible { opacity: 1; transform: none; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 5px; }
.work-section :focus-visible, .contact-section :focus-visible { outline-color: var(--acid); }

@media (max-width: 1000px) {
  :root { --page: calc(100% - 48px); }
  .hero-grid { grid-template-columns: 1fr; padding: 70px 0; }
  .signal-board { width: 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
  .signal-board .eyebrow { grid-column: 1 / -1; margin-bottom: 0; }
  .signal-orbit { height: 100%; min-height: 200px; margin: 0; }
  .section-intro { grid-template-columns: 100px 1fr; }
  .section-intro p:last-child { grid-column: 2; }
  .project-main { grid-template-columns: 1fr; gap: 18px; }
  .tag-row { grid-column: 1; }
  .experience-section { grid-template-columns: 1fr; }
  .section-heading { position: static; }
  .research-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  :root { --page: calc(100% - 36px); }
  .site-header { min-height: 66px; padding: 0 18px; }
  .wordmark-name { display: none; }
  .menu-toggle { display: flex; min-width: 76px; min-height: 44px; padding: 0; align-items: center; justify-content: flex-end; gap: 10px; border: 0; background: transparent; font-family: var(--mono); font-size: 10px; text-transform: uppercase; }
  .menu-icon, .menu-icon::before { display: block; width: 16px; height: 1px; background: var(--ink); content: ""; transition: transform .25s ease; }
  .menu-icon::before { transform: translateY(5px); }
  .menu-toggle[aria-expanded="true"] .menu-icon { transform: rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-icon::before { transform: rotate(-90deg); }
  .site-nav { position: fixed; inset: 66px 0 auto; padding: 20px 18px 28px; display: grid; gap: 0; background: var(--paper); border-bottom: 1px solid var(--ink); transform: translateY(-130%); visibility: hidden; transition: transform .35s var(--ease), visibility .35s; }
  .site-nav.is-open { transform: translateY(0); visibility: visible; }
  .site-nav a { min-height: 52px; display: flex; align-items: center; border-top: 1px solid var(--line); font-size: 13px; }
  .hero { padding-top: 104px; }
  .hero-grid { gap: 60px; padding: 55px 0; }
  .hero-copy h1 { font-size: clamp(52px, 16vw, 76px); line-height: .86; }
  .hero-summary { margin-top: 34px; font-size: 17px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; justify-content: space-between; }
  .text-link { overflow-wrap: anywhere; }
  .signal-board { display: block; }
  .signal-orbit { min-height: 150px; margin-top: 20px; }
  .section { padding-left: 18px; padding-right: 18px; }
  .section-intro { display: block; margin-bottom: 60px; }
  .section-intro h2, .section-heading h2, .research-statement h2 { font-size: 52px; margin-bottom: 28px; }
  .project-link { grid-template-columns: 32px 1fr 24px; gap: 12px; padding: 28px 0; }
  .project-number { padding-top: 8px; }
  .project-title { font-size: 32px; }
  .project-description { font-size: 14px; }
  .timeline-item { grid-template-columns: 1fr; gap: 16px; padding-bottom: 42px; }
  .timeline-meta { flex-direction: row; justify-content: space-between; }
  .publication { padding: 25px; box-shadow: 8px 8px 0 var(--ink); }
  .publication-mark { right: 20px; }
  .education-strip { margin-top: 80px; grid-template-columns: 1fr; gap: 28px; }
  .contact-section { padding-left: 18px; padding-right: 18px; }
  .contact-section h2 { font-size: 52px; }
  .contact-row { align-items: stretch; flex-direction: column; }
  .social-links { justify-content: space-between; gap: 12px; }
  .site-footer { padding: 28px 18px; align-items: flex-start; flex-direction: column; justify-content: center; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}