/* ==========================================================================
   Faktor 10 — one-page scroll-reveal portfolio
   Semantic first: everything readable without JS; motion is an enhancement.
   ========================================================================== */

:root {
  --ink: #0b0b0c;
  --ink-soft: #141416;
  --paper: #f3f1ec;
  --paper-dim: rgba(243, 241, 236, 0.62);
  --paper-faint: rgba(243, 241, 236, 0.14);
  --lime: #ccff33;
  --violet: #b09bff;
  --amber: #ffa14a;
  --blue: #7cc9ff;

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", monospace;

  --gutter: clamp(1.25rem, 5vw, 6rem);
  --rule: 1px solid var(--paper-faint);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.95rem + 0.2vw, 1.0625rem);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

html.js body.is-loading { overflow: hidden; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.03em; line-height: 0.95; margin: 0; }
p { margin: 0; }
ul, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }

::selection { background: var(--lime); color: var(--ink); }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--lime); color: var(--ink); padding: 0.75rem 1rem; font-family: var(--font-mono);
}
.skip:focus { left: 0; }

:focus-visible { outline: 2px solid var(--lime); outline-offset: 4px; }

/* ---------- Texture + cursor ---------- */

.grain {
  position: fixed; inset: -50%; z-index: 90; pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grainShift 1.2s steps(3) infinite;
}
@keyframes grainShift {
  0% { transform: translate(0, 0); }
  33% { transform: translate(-2%, 1%); }
  66% { transform: translate(1%, -2%); }
  100% { transform: translate(0, 0); }
}

.cursor { position: fixed; top: 0; left: 0; z-index: 95; pointer-events: none; mix-blend-mode: difference; opacity: 0; }
.cursor__dot, .cursor__ring { position: absolute; border-radius: 50%; transform: translate(-50%, -50%); }
.cursor__dot { width: 6px; height: 6px; background: var(--paper); }
.cursor__ring { width: 40px; height: 40px; border: 1px solid var(--paper); transition: width 0.3s var(--ease), height 0.3s var(--ease); }
.cursor.is-hot .cursor__ring { width: 72px; height: 72px; }
@media (hover: none), (pointer: coarse) { .cursor { display: none; } }

/* ---------- Loader ---------- */

/* Without JS the loader can never finish, so it never shows. */
html:not(.js) .loader { display: none; }

.loader {
  position: fixed; inset: 0; z-index: 99;
  background: var(--ink);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: var(--gutter);
}
.loader.is-done { pointer-events: none; }
.loader__inner { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.loader__label { font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--paper-dim); }
.loader__count { font-family: var(--font-display); font-size: clamp(3rem, 14vw, 10rem); line-height: 0.8; color: var(--lime); }
.loader__bar { height: 2px; margin-top: 1.5rem; background: var(--paper-faint); }
.loader__bar span { display: block; height: 100%; width: 0%; background: var(--lime); }

/* ---------- 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: clamp(1rem, 2.4vw, 1.75rem) var(--gutter);
  padding-top: calc(clamp(1rem, 2.4vw, 1.75rem) + env(safe-area-inset-top, 0px));
  transition: transform 0.45s var(--ease), background-color 0.45s var(--ease), backdrop-filter 0.45s var(--ease);
}
.nav.is-stuck { background: rgba(11, 11, 12, 0.72); backdrop-filter: blur(14px); border-bottom: var(--rule); }
.nav.is-hidden { transform: translateY(-110%); }
.nav__brand { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; }
.nav__mark {
  display: grid; place-items: center; width: 2rem; height: 2rem;
  background: var(--lime); color: var(--ink); border-radius: 0.5rem;
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 500;
}
.nav__links { display: flex; align-items: center; gap: clamp(0.85rem, 2vw, 2rem); font-family: var(--font-mono); font-size: 0.82rem; }
.nav__links a { position: relative; padding: 0.35rem 0; color: var(--paper-dim); transition: color 0.3s; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform 0.4s var(--ease);
}
.nav__links a:hover { color: var(--paper); }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__cta { color: var(--ink) !important; background: var(--paper); border-radius: 999px; padding: 0.5rem 1rem !important; }
.nav__cta::after { display: none; }
.nav__cta:hover { background: var(--lime); }
@media (max-width: 620px) {
  .nav__brandText { display: none; }
  .nav__links a:not(.nav__cta) { display: none; }
}

/* ---------- Shared bits ---------- */

.sectionLabel {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--paper-dim);
  display: flex; align-items: center; gap: 0.75rem;
}
.sectionLabel span { color: var(--lime); }

.h2 { font-size: clamp(2.2rem, 6vw, 5rem); margin-top: 1.5rem; }

.tag {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--paper-dim); border: var(--rule); border-radius: 999px; padding: 0.4rem 0.85rem;
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.tag--dot i { width: 6px; height: 6px; border-radius: 50%; background: var(--lime); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

.line { display: block; overflow: hidden; }
.line__in { display: block; will-change: transform; }

[data-reveal] { will-change: transform, opacity; }

/* ---------- Hero ---------- */

.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  gap: clamp(2rem, 6vh, 4rem);
  padding: calc(6rem + env(safe-area-inset-top, 0px)) var(--gutter) clamp(2rem, 6vh, 4rem);
  overflow: hidden;
}
.hero__glow {
  position: absolute; z-index: -1; top: -20%; right: -10%;
  width: min(80vw, 900px); aspect-ratio: 1;
  background: radial-gradient(circle at 50% 50%, rgba(204, 255, 51, 0.18), rgba(176, 155, 255, 0.12) 42%, transparent 68%);
  filter: blur(40px);
}
.hero__meta { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: auto; }
.hero__title { font-size: clamp(2.6rem, 9vw, 9rem); text-transform: uppercase; }
.hero__title em { font-style: normal; color: var(--lime); }
.hero__foot { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 2rem; border-top: var(--rule); padding-top: 1.75rem; }
.hero__lede { max-width: 46ch; color: var(--paper-dim); }
.hero__lede strong { color: var(--paper); font-weight: 500; }

.scrollcue { display: flex; align-items: center; gap: 0.75rem; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--paper-dim); }
.scrollcue svg { width: 14px; height: 26px; fill: none; stroke: var(--lime); stroke-width: 2; animation: cueDrop 2.4s var(--ease) infinite; }
@keyframes cueDrop { 0%, 100% { transform: translateY(0); opacity: 1; } 50% { transform: translateY(6px); opacity: 0.5; } }

/* ---------- Marquee ---------- */

.marquee { border-top: var(--rule); border-bottom: var(--rule); padding: 1.1rem 0; overflow: hidden; background: var(--ink-soft); }
.marquee__track { display: flex; white-space: nowrap; will-change: transform; }
.marquee__track span {
  font-family: var(--font-display); font-weight: 700; text-transform: uppercase;
  font-size: clamp(1.4rem, 4vw, 3rem); letter-spacing: -0.02em; padding-right: 2rem;
}
.marquee__track i { font-style: normal; color: var(--lime); }

/* ---------- Manifesto ---------- */

.manifesto { padding: clamp(6rem, 16vh, 12rem) var(--gutter); }
.bigtext {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.6rem, 4.2vw, 3.6rem); line-height: 1.12; letter-spacing: -0.025em;
  margin: 2.5rem 0 0; max-width: 26ch;
}
.bigtext--sm { font-size: clamp(1.4rem, 3.2vw, 2.7rem); }
.bigtext .word { display: inline-block; color: rgba(243, 241, 236, 0.18); transition: color 0.3s linear; }
.bigtext .word.is-lit { color: var(--paper); }
.manifesto__cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); gap: 2rem clamp(2rem, 6vw, 6rem); margin-top: clamp(3rem, 8vh, 6rem); border-top: var(--rule); padding-top: 2rem; }
.manifesto__cols p { color: var(--paper-dim); max-width: 46ch; }

/* ---------- Principles (sticky stack) ---------- */

.principles { padding: clamp(4rem, 10vh, 8rem) var(--gutter) clamp(6rem, 14vh, 10rem); }
.cards { margin-top: clamp(3rem, 8vh, 5rem); display: flex; flex-direction: column; gap: 1.25rem; }
.card {
  position: sticky; top: clamp(5rem, 14vh, 9rem);
  background: var(--ink-soft); border: var(--rule); border-radius: 1.25rem;
  padding: clamp(1.75rem, 4vw, 3rem);
  display: grid; gap: 0.75rem;
}
.card__n { font-family: var(--font-mono); font-size: 0.78rem; color: var(--lime); letter-spacing: 0.2em; }
.card h3 { font-size: clamp(1.5rem, 3.4vw, 2.6rem); }
.card p { color: var(--paper-dim); max-width: 60ch; }
.card:nth-child(2) { top: calc(clamp(5rem, 14vh, 9rem) + 1rem); }
.card:nth-child(3) { top: calc(clamp(5rem, 14vh, 9rem) + 2rem); }
.card:nth-child(4) { top: calc(clamp(5rem, 14vh, 9rem) + 3rem); }
.card:nth-child(5) { top: calc(clamp(5rem, 14vh, 9rem) + 4rem); }

/* ---------- Work (horizontal scroll) ---------- */

.work { padding-top: clamp(4rem, 10vh, 8rem); }
.work__head { padding: 0 var(--gutter) clamp(2.5rem, 6vh, 4rem); }
.hscroll { overflow: hidden; display: flex; align-items: center; min-height: 100svh; }
.hscroll__track {
  display: flex; align-items: stretch; gap: clamp(1rem, 2vw, 2rem);
  padding: 0 var(--gutter);
}
.proj {
  flex: 0 0 min(88vw, 34rem);
  border-radius: 1.5rem; padding: clamp(1.75rem, 3.5vw, 3rem);
  background: var(--ink-soft); border: var(--rule);
  display: flex; flex-direction: column; gap: 1.25rem;
  min-height: min(64svh, 32rem);
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease);
}
.proj:hover { transform: translateY(-6px); }
.proj header { display: grid; gap: 0.9rem; }
.proj__status { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink); background: var(--accent, var(--lime)); border-radius: 999px; padding: 0.3rem 0.7rem; justify-self: start; }
.proj__title { font-size: clamp(2.2rem, 6vw, 4.2rem); color: var(--accent, var(--lime)); text-transform: uppercase; }
.proj__desc { color: var(--paper-dim); margin-top: auto; }
.proj__tags { display: flex; flex-wrap: wrap; gap: 0.5rem; border-top: var(--rule); padding-top: 1.25rem; }
.proj__tags li { font-family: var(--font-mono); font-size: 0.72rem; color: var(--paper-dim); border: var(--rule); border-radius: 999px; padding: 0.3rem 0.7rem; }
.proj--lime { --accent: var(--lime); }
.proj--violet { --accent: var(--violet); }
.proj--amber { --accent: var(--amber); }
.proj--blue { --accent: var(--blue); }
.proj--ghost { --accent: var(--paper); background: transparent; border-style: dashed; }
.proj:hover { border-color: var(--accent); }

/* ---------- Stack ---------- */

.stack { padding: clamp(5rem, 12vh, 10rem) var(--gutter); border-top: var(--rule); }
.stack__grid { margin-top: clamp(3rem, 8vh, 5rem); }
.stack__row {
  display: grid; grid-template-columns: minmax(8rem, 15rem) 1fr; gap: 1rem clamp(1.5rem, 4vw, 4rem);
  padding: clamp(1.25rem, 3vw, 2rem) 0; border-top: var(--rule);
  transition: background-color 0.4s var(--ease), padding-inline 0.4s var(--ease);
}
.stack__row:last-child { border-bottom: var(--rule); }
.stack__row:hover { background: var(--ink-soft); }
.stack__row dt { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.1rem, 2.2vw, 1.6rem); }
.stack__row dd { color: var(--paper-dim); font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.9; }
@media (max-width: 640px) { .stack__row { grid-template-columns: 1fr; } }

/* ---------- Collaborator ---------- */

.collab { padding: clamp(5rem, 14vh, 10rem) var(--gutter); background: var(--ink-soft); border-top: var(--rule); border-bottom: var(--rule); }
.collab__inner { max-width: 60rem; }
.collab__note { margin-top: 2.5rem; color: var(--paper-dim); font-family: var(--font-mono); font-size: 0.85rem; max-width: 60ch; }

/* ---------- Contact ---------- */

.contact { padding: clamp(6rem, 18vh, 12rem) var(--gutter) clamp(4rem, 10vh, 7rem); }
.contact__big { font-size: clamp(2.2rem, 8vw, 8rem); text-transform: uppercase; margin-top: 2rem; }
.contact__links { margin-top: clamp(3rem, 8vh, 5rem); display: grid; }
.contact__links a {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  border-top: var(--rule); padding: clamp(1rem, 3vw, 1.75rem) 0;
  font-family: var(--font-display); font-weight: 500; font-size: clamp(1.1rem, 3vw, 2rem);
  transition: color 0.35s var(--ease), padding-left 0.35s var(--ease);
}
.contact__links a:last-child { border-bottom: var(--rule); }
.contact__links a::after { content: "↗"; color: var(--lime); }
.contact__links a:hover { color: var(--lime); padding-left: 1rem; }

/* ---------- Footer ---------- */

.footer {
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between;
  padding: 2rem var(--gutter);
  padding-bottom: calc(2rem + env(safe-area-inset-bottom, 0px));
  border-top: var(--rule);
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--paper-dim);
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .grain { animation: none; }
  .bigtext .word { color: var(--paper); }
  .cursor { display: none; }
}

/* ---------- Narrow screens: rail becomes a native swipe ---------- */

@media (max-width: 860px) {
  .hscroll { min-height: auto; padding-bottom: clamp(3rem, 8vh, 5rem); scroll-padding-left: var(--gutter); }
  .proj { flex-basis: min(84vw, 30rem); min-height: auto; }
  .proj__desc { margin-top: 0; }
}