/* ============================================================
   Yash Aggarwal — portfolio
   Hand-rolled. No frameworks, no templates.
   Concept: a printed editorial specimen — warm paper, ink,
   electric ultramarine. Projects stack like sheets of paper;
   the page inverts to ink for the finale.
   ============================================================ */

:root {
  --paper: #f3efe6;
  --ink: #181610;
  --ink-dim: rgba(24, 22, 16, 0.56);
  --accent: #2222e6;
  --line: rgba(24, 22, 16, 0.16);
  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Archivo", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --font-serif: "Instrument Serif", Georgia, serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

body.dark {
  --paper: #141310;
  --ink: #f3efe6;
  --ink-dim: rgba(243, 239, 230, 0.55);
  --accent: #7c76ff;
  --line: rgba(243, 239, 230, 0.18);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.8s ease, color 0.8s ease;
}

::selection { background: var(--accent); color: var(--paper); }

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

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

.mono {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}

/* Display type: expanded grotesk, tight tracking */
.display,
.section-head__title,
.hero__title,
.xp__company,
.panel__title,
.contact__email-text,
.preloader__word,
.nav__logo,
.marquee__item,
.stat__value {
  font-family: var(--font-display);
  font-stretch: 118%;
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* ---------- preloader ---------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: clip-path 0.8s var(--ease-out);
  clip-path: inset(0 0 0 0);
}
.preloader.done { clip-path: inset(0 0 100% 0); pointer-events: none; }
.preloader__name { display: flex; align-items: baseline; gap: 1rem; overflow: hidden; }
.preloader__word {
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  text-transform: uppercase;
  animation: rise 0.7s var(--ease-out) both 0.1s;
}
.preloader__word--serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-stretch: 100%;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: lowercase;
  font-size: clamp(1.8rem, 4.4vw, 3.1rem);
  color: var(--paper);
  animation-delay: 0.22s;
}
@keyframes rise { from { transform: translateY(110%); } to { transform: translateY(0); } }

/* ---------- fixed chrome ---------- */
.grain {
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' 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");
}
body.dark .grain { mix-blend-mode: screen; opacity: 0.04; }

.progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  background: var(--accent);
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 95;
  will-change: transform;
}

/* ---------- rotating badge ---------- */
.badge {
  position: fixed;
  right: clamp(1.2rem, 3vw, 2.4rem);
  bottom: clamp(1.2rem, 3vw, 2.4rem);
  width: 96px;
  height: 96px;
  z-index: 85;
  display: grid;
  place-items: center;
}
.badge__ring {
  position: absolute;
  inset: 0;
  will-change: transform;
}
.badge__ring text {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  fill: var(--ink);
  transition: fill 0.8s ease;
}
.badge__arrow {
  font-size: 1.1rem;
  color: var(--accent);
  transition: transform 0.4s var(--ease-out);
}
.badge:hover .badge__arrow { transform: translateY(4px); }
@media (max-width: 900px) { .badge { display: none; } }

/* ---------- cursor ---------- */
.cursor { display: none; }
@media (hover: hover) and (pointer: fine) {
  .cursor {
    display: block;
    position: fixed;
    top: -18px; left: -18px;
    width: 36px; height: 36px;
    border: 1px solid var(--ink);
    border-radius: 50%;
    pointer-events: none;
    z-index: 96;
    transition: background-color 0.3s, border-color 0.3s;
    will-change: transform;
  }
  .cursor::after {
    content: "";
    position: absolute;
    top: 50%; left: 50%;
    width: 4px; height: 4px;
    margin: -2px 0 0 -2px;
    border-radius: 50%;
    background: var(--accent);
  }
  .cursor.is-hover {
    background: color-mix(in srgb, var(--accent) 14%, transparent);
    border-color: var(--accent);
  }
  .cursor.is-hover::after { background: transparent; }
}

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem clamp(1.2rem, 4vw, 3rem);
  background: linear-gradient(to bottom, color-mix(in srgb, var(--paper) 88%, transparent), transparent);
}
.nav__logo { font-size: 1.25rem; text-transform: uppercase; }
.nav__logo-tick { font-size: 0.6em; vertical-align: super; color: var(--accent); }
.nav__links { display: flex; gap: clamp(0.9rem, 2.5vw, 2.2rem); }
.nav__link {
  font-size: 0.85rem;
  font-weight: 500;
  position: relative;
  padding-bottom: 2px;
  white-space: nowrap;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: 100% 50%;
  transition: transform 0.4s var(--ease-out);
}
.nav__link:hover::after { transform: scaleX(1); transform-origin: 0 50%; }
.nav__meta { display: flex; align-items: center; gap: 1.4rem; font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; }
.nav__status { display: flex; align-items: center; gap: 0.5rem; white-space: nowrap; }
.nav__pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.35; transform: scale(0.7); } }
.nav__clock { font-variant-numeric: tabular-nums; color: var(--ink-dim); }

/* ---------- sections shared ---------- */
main { position: relative; z-index: 1; }
section { position: relative; padding: clamp(4.5rem, 14vh, 10rem) clamp(1.2rem, 4vw, 3rem); }

.section-head {
  display: flex;
  align-items: flex-end;
  gap: 2rem;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 1.6rem;
  margin-bottom: clamp(2rem, 6vh, 4rem);
}
.section-head__num { color: var(--accent); }
.section-head__title {
  font-size: clamp(2.2rem, 6.5vw, 5rem);
  line-height: 1;
  text-transform: uppercase;
}
.section-head__title .serif {
  font-stretch: 100%;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: lowercase;
  font-size: 1.08em;
  color: var(--accent);
}
.section-head__note { margin-left: auto; color: var(--ink-dim); text-align: right; line-height: 1.7; flex-shrink: 0; }

/* reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- hero ---------- */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 6rem;
}
.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  color: var(--ink-dim);
  margin-bottom: clamp(1.5rem, 4vh, 3rem);
}
.hero__eyebrow-line { flex: 1; height: 1px; background: var(--line); }

.hero__title {
  font-size: clamp(3rem, 11.5vw, 11rem);
  line-height: 0.9;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
}
.hero__line { display: block; overflow: hidden; will-change: transform; }
.hero__line--right { text-align: right; }
.hero__line-inner {
  display: inline-block;
  white-space: nowrap;
  transform: translateY(110%);
  transition: transform 1.1s var(--ease-out);
}
body.loaded .hero__line:nth-child(1) .hero__line-inner { transform: translateY(0); transition-delay: 0.05s; }
body.loaded .hero__line:nth-child(2) .hero__line-inner { transform: translateY(0); transition-delay: 0.18s; }
body.loaded .hero__line:nth-child(3) .hero__line-inner { transform: translateY(0); transition-delay: 0.31s; }
.hero__line-inner--outline {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--ink);
}
.hero__line--mixed { font-size: 0.46em; letter-spacing: 0; margin-top: 0.45em; }
.hero__line--mixed .serif {
  font-stretch: 100%;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--accent);
  text-transform: lowercase;
  font-size: 1.1em;
}
.hero__mark { color: var(--accent); font-weight: 500; font-size: 0.7em; vertical-align: middle; }

.hero__bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-top: clamp(2rem, 6vh, 4rem);
}
.hero__tag {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 1.55;
  color: var(--ink-dim);
  max-width: 34em;
}
.hero__scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink-dim);
  flex-shrink: 0;
}
.hero__scroll-ring {
  width: 52px; height: 52px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: border-color 0.3s;
}
.hero__scroll:hover .hero__scroll-ring { border-color: var(--accent); }
.hero__scroll-arrow { animation: bob 1.8s ease-in-out infinite; color: var(--ink); }
@keyframes bob { 0%, 100% { transform: translateY(-3px); } 50% { transform: translateY(3px); } }

/* ---------- marquee: full-bleed ink band ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: 1.1rem 0;
  transition: background-color 0.8s ease, color 0.8s ease;
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 30s linear infinite;
  will-change: transform;
}
.marquee__item {
  font-weight: 700;
  font-size: clamp(1rem, 2vw, 1.5rem);
  letter-spacing: 0.04em;
  white-space: nowrap;
  padding-right: 1rem;
}
.marquee__item i { font-style: normal; color: var(--accent); }
body.dark .marquee__item i { color: #2222e6; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- experience ---------- */
.xp__list { border-top: 1px solid var(--line); }
.xp__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  padding: clamp(2rem, 5vh, 3.2rem) 0;
  border-bottom: 1px solid var(--line);
}
.xp__company {
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  line-height: 1.05;
  text-transform: uppercase;
}
.xp__now {
  display: inline-block;
  vertical-align: middle;
  margin-left: 0.6rem;
  padding: 0.25em 0.7em;
  background: var(--accent);
  color: var(--paper);
  border-radius: 2em;
  font-size: 0.6rem;
  font-stretch: 100%;
  font-weight: 500;
  letter-spacing: 0.14em;
  animation: pulse 2s ease-in-out infinite;
}
.xp__role {
  display: block;
  margin-top: 0.5rem;
  font-size: 1.35rem;
  color: var(--accent);
}
.xp__meta {
  margin-top: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  color: var(--ink-dim);
}
.xp__points { display: flex; flex-direction: column; gap: 0.7rem; }
.xp__points li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.97rem;
  line-height: 1.6;
  color: var(--ink-dim);
  transition: color 0.4s;
}
.xp__points li::before {
  content: "✦";
  position: absolute;
  left: 0;
  top: 0.1em;
  color: var(--accent);
  font-size: 0.7em;
}
.xp__item:hover .xp__points li { color: var(--ink); }
.xp__tags {
  margin-top: 1.2rem;
  color: var(--ink-dim);
  text-transform: none;
  letter-spacing: 0.02em;
}

/* ---------- projects: sticky sheet deck ---------- */
.work { padding-bottom: 0; }

.deck { position: relative; }

.panel {
  position: sticky;
  top: 0;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--paper);
  border-top: 1px solid var(--ink);
  padding: clamp(5rem, 10vh, 7rem) clamp(1.2rem, 4vw, 3rem);
  overflow: hidden;
  transition: background-color 0.8s ease;
}

.panel__ghost {
  position: absolute;
  right: -0.05em;
  bottom: -0.18em;
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 900;
  font-size: clamp(12rem, 36vw, 34rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--line);
  pointer-events: none;
  user-select: none;
}

.panel__inner {
  position: relative;
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  will-change: transform, opacity;
}
.panel:nth-child(even) .panel__inner { direction: rtl; }
.panel:nth-child(even) .panel__inner > * { direction: ltr; }

.panel__meta {
  display: flex;
  justify-content: space-between;
  color: var(--ink-dim);
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.9rem;
  margin-bottom: clamp(1.4rem, 3vh, 2.2rem);
}
.panel__meta span:first-child { color: var(--accent); }

.panel__title {
  font-size: clamp(2.2rem, 4.5vw, 4.4rem);
  line-height: 0.95;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}
.panel__title a {
  display: inline-block;
  transition: color 0.3s;
}
.panel__title a:hover { color: var(--accent); }

.panel__award {
  margin-top: 0.8rem;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  color: var(--accent);
}
.panel__desc {
  margin-top: clamp(1rem, 2.5vh, 1.6rem);
  font-size: clamp(0.95rem, 1.3vw, 1.1rem);
  line-height: 1.6;
  color: var(--ink-dim);
  max-width: 32em;
}
.panel__tags {
  margin-top: 1.4rem;
  color: var(--ink-dim);
  text-transform: none;
  letter-spacing: 0.02em;
}
.panel__cta {
  display: inline-block;
  margin-top: clamp(1.4rem, 3vh, 2.2rem);
  padding: 0.85em 1.6em;
  border: 1px solid var(--ink);
  border-radius: 2em;
  color: var(--ink);
  transition: background-color 0.35s var(--ease-out), color 0.35s var(--ease-out), border-color 0.35s;
}
.panel__cta:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

.panel__media {
  border: 1px solid var(--ink);
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: color-mix(in srgb, var(--ink) 6%, var(--paper));
}
.panel__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.8s var(--ease-out);
}
.panel:hover .panel__media img { transform: scale(1.03); }

/* ---------- about ---------- */
.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.about__statement {
  font-family: var(--font-display);
  font-stretch: 108%;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: clamp(1.35rem, 2.9vw, 2.5rem);
  line-height: 1.38;
}
.about__statement .w {
  display: inline-block;
  opacity: 0.14;
  transition: opacity 0.5s ease;
}
.about__statement .w.lit { opacity: 1; }

.about__figure { position: relative; max-width: 360px; justify-self: end; }
.about__photo {
  width: 100%;
  display: block;
  filter: grayscale(100%) contrast(1.05);
  transition: filter 0.6s var(--ease-out), transform 0.6s var(--ease-out);
  border: 1px solid var(--ink);
}
.about__figure:hover .about__photo { filter: grayscale(0%); transform: scale(1.02) rotate(-1deg); }
.about__figure figcaption { margin-top: 0.8rem; color: var(--ink-dim); }

.about__stats {
  margin-top: clamp(3rem, 8vh, 5.5rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.stat {
  padding: 1.8rem 1.4rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat__value {
  display: block;
  font-size: clamp(2.2rem, 5vw, 4rem);
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.stat__label { color: var(--ink-dim); }

/* ---------- stack ---------- */
.stack__rows { border-top: 1px solid var(--line); }
.stack__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2.2fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: baseline;
  padding: clamp(1.3rem, 3vh, 1.9rem) 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.4s;
}
.stack__row:hover { background: color-mix(in srgb, var(--ink) 4%, transparent); }
.stack__cat { color: var(--accent); }
.stack__row p { font-size: clamp(1.05rem, 1.6vw, 1.35rem); line-height: 1.5; }
.stack__row--accent p {
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  color: var(--accent);
}

/* ---------- contact (page inverts to ink here) ---------- */
.contact {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.contact__eyebrow { color: var(--ink-dim); margin-bottom: 1.5rem; }
.contact__email { display: inline-block; will-change: transform; max-width: 100%; }
.contact__email-text {
  display: inline-block;
  font-size: clamp(2.6rem, 11vw, 9.5rem);
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
  transition: color 0.4s;
}
.contact__email-text .serif {
  font-stretch: 100%;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: lowercase;
  font-size: 1.08em;
}
.contact__email:hover .contact__email-text { color: var(--accent); }
.contact__arrow {
  display: inline-block;
  margin-left: 0.15em;
  color: var(--accent);
  transition: transform 0.4s var(--ease-out);
}
.contact__email:hover .contact__arrow { transform: translateX(0.12em) rotate(-45deg); }
.contact__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(1.2rem, 4vw, 3rem);
  margin-top: clamp(2rem, 6vh, 3.5rem);
}
.contact__link {
  color: var(--ink-dim);
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 0.85rem;
  transition: color 0.3s;
}
.contact__link:hover { color: var(--accent); }

.footer {
  width: 100%;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: clamp(4rem, 12vh, 7rem);
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  color: var(--ink-dim);
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .nav { padding-top: 1rem; padding-bottom: 1rem; }
  .nav__meta { display: none; }
  .nav__link { font-size: 0.78rem; }
  .section-head__note { display: none; }

  .xp__item { grid-template-columns: 1fr; gap: 1.2rem; }
  .xp__meta { flex-direction: row; gap: 1.2rem; flex-wrap: wrap; }

  /* sheets flow normally on small screens — no sticky stack */
  .panel {
    position: static;
    min-height: auto;
    padding-top: clamp(3rem, 8vh, 5rem);
    padding-bottom: clamp(3rem, 8vh, 5rem);
  }
  .panel__inner { grid-template-columns: 1fr; gap: 1.8rem; }
  .panel:nth-child(even) .panel__inner { direction: ltr; }
  .panel__media { order: -1; }
  .panel__ghost { font-size: clamp(8rem, 40vw, 14rem); }

  .about__grid { grid-template-columns: 1fr; }
  .about__figure { justify-self: start; max-width: 300px; }

  .stack__row { grid-template-columns: 1fr; gap: 0.5rem; }
}

@media (max-width: 600px) {
  .hero { padding-top: 5rem; }
  .hero__bottom { flex-direction: column; align-items: flex-start; }
  .hero__scroll { display: none; }
  .footer { flex-direction: column; }
  .stat { padding: 1.3rem 1rem; }
  .about__stats { grid-template-columns: 1fr 1fr; }
  .contact__email-text { white-space: normal; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero__line-inner { transform: none; }
  .about__statement .w { opacity: 1; }
}