/* nikz.in — plain CSS, no build step.
   Tokens first; light is the default, dark follows the visitor's system. */

/* Self-hosted, SIL Open Font License. Latin subset. */
@font-face { font-family: "Jost"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("fonts/jost-latin-wght-normal.woff2") format("woff2"); }
@font-face { font-family: "Jost"; font-style: italic; font-weight: 100 900; font-display: swap; src: url("fonts/jost-latin-wght-italic.woff2") format("woff2"); }
@font-face { font-family: "Hanken Grotesk"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("fonts/hanken-grotesk-latin-wght-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); }

:root {
  /* Dark is the design. Visitors whose system is set to light get the
     same palette lifted a few steps (see the media query below). */
  --paper: #100f0d;
  --paper-2: #181613;
  --ink: #ece7dc;
  --ink-2: #a39d90;
  --line: rgba(236, 231, 220, 0.16);
  --line-strong: rgba(236, 231, 220, 0.6);
  --accent: #d4718a;                  /* claret — anything that must be read */
  --accent-deep: #7d2b3d;             /* wine — solid fills only, never text */
  --facet-hi: 236, 231, 220;          /* rgb of the facet glint */

  --display: "Jost", "Futura", "Century Gothic", ui-sans-serif, system-ui, sans-serif;
  --sans: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Consolas, monospace;

  --gutter: clamp(16px, 4vw, 56px);
  --measure: 62ch;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --paper: #23211d;
    --paper-2: #2c2a25;
    --ink: #f1ece2;
    --ink-2: #b4aea1;
    --line: rgba(241, 236, 226, 0.17);
    --line-strong: rgba(241, 236, 226, 0.6);
  }
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration-color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--accent); }
a:focus-visible, .skip:focus { outline: 2px solid var(--accent); outline-offset: 3px; }

h1, h2, h3, p, ol, ul, dl, dd, figure { margin: 0; padding: 0; }
ol, ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

.label {
  font: 400 0.72rem/1.4 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.skip {
  position: absolute; left: var(--gutter); top: -4rem;
  background: var(--accent-deep); color: var(--ink); padding: 0.5rem 0.9rem; z-index: 10;
  font: 400 0.8rem var(--mono);
}
.skip:focus { top: 0.75rem; }

/* ── Top bar ─────────────────────────────────────────── */
.top {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.85rem var(--gutter);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.mark {
  font: 500 1rem/1 var(--display);
  text-decoration: none;
  letter-spacing: 0.32em;
}
.top nav { display: flex; gap: clamp(0.8rem, 2.4vw, 1.9rem); overflow-x: auto; scrollbar-width: none; }
.top nav::-webkit-scrollbar { display: none; }
.top nav a {
  font: 400 0.72rem/1 var(--mono);
  letter-spacing: 0.08em; text-transform: uppercase;
  text-decoration: none; color: var(--ink-2); white-space: nowrap;
  padding: 0.45rem 0;
}
.top nav a:hover, .top nav a[aria-current="true"] { color: var(--ink); }
.top nav a[aria-current="true"] { box-shadow: 0 1px 0 var(--accent); }

/* ── Hero ────────────────────────────────────────────── */
.hero { border-bottom: 1px solid var(--line); }
.hero-pin {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: clamp(1.5rem, 5vw, 5rem);
  min-height: calc(100svh - 3.2rem);
  padding: clamp(2rem, 6vw, 5rem) var(--gutter);
}
.hero h1 {
  font: 200 clamp(3.2rem, 10.5vw, 10rem)/1 var(--display);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 1.4rem 0 2rem -0.05em;
}
.lede {
  font: 300 clamp(1.2rem, 2vw, 1.6rem)/1.45 var(--display);
  max-width: 32ch;
  color: var(--ink);
}
.lede em { font-style: italic; font-weight: 400; color: var(--accent); }

.hero-stone { justify-self: center; width: min(100%, 560px); text-align: center; }
.hero-stone figcaption { margin-top: 1.1rem; }

.stone { width: 100%; height: auto; overflow: visible; display: block; }
.stone .f {
  fill: rgb(var(--facet-hi));
  fill-opacity: var(--l, 0);
  stroke: var(--ink);
  stroke-width: 0.55;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}
.stone .stone-girdle { fill: none; stroke: var(--ink); stroke-width: 1.2; vector-effect: non-scaling-stroke; }
.stone .stone-ticks line { stroke: var(--ink-2); stroke-width: 0.6; vector-effect: non-scaling-stroke; opacity: 0.7; }
.stone .stone-ticks line:nth-child(9n + 1) { stroke: var(--accent); opacity: 1; }

/* ── Banner ──────────────────────────────────────────── */
.banner {
  position: relative; overflow: hidden;
  height: clamp(200px, 36vw, 520px);
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
}
.banner img { width: 100%; height: 100%; object-fit: cover; object-position: 62% 55%; filter: brightness(0.82) saturate(0.92) contrast(1.04); }
.banner::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, var(--paper) 0%, color-mix(in srgb, var(--paper) 55%, transparent) 28%, transparent 58%),
    linear-gradient(0deg, color-mix(in srgb, var(--paper) 70%, transparent) 0%, transparent 35%),
    linear-gradient(90deg, color-mix(in srgb, var(--accent-deep) 22%, transparent) 0%, transparent 45%);
}
.banner figcaption { position: absolute; left: var(--gutter); bottom: 1.1rem; z-index: 1; color: var(--ink); }

/* ── Blocks ──────────────────────────────────────────── */
.block {
  display: grid;
  grid-template-columns: minmax(9rem, 1fr) minmax(0, 4fr);
  column-gap: clamp(1.5rem, 4vw, 4rem);
  padding: clamp(3.5rem, 9vw, 8rem) var(--gutter);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 3rem;
}
.block > :not(.block-head) { grid-column: 2; }
.block-head { grid-column: 1; grid-row: 1 / span 9; align-self: start; position: sticky; top: 5rem; }
.block-head h2 { font: 300 clamp(1.5rem, 2.4vw, 2rem)/1.1 var(--display); letter-spacing: 0.01em; margin-top: 0.5rem; }

.big {
  font: 300 clamp(1.45rem, 2.7vw, 2.3rem)/1.3 var(--display);
  letter-spacing: 0;
  max-width: 26ch;
}
.prose p + p { margin-top: 1.15em; }
.prose p:not(.big) { max-width: var(--measure); color: var(--ink-2); }
.prose .big { max-width: 24ch; margin-bottom: 1.6rem; }
.prose a { color: var(--ink); }
.prose a:hover { color: var(--accent); }

/* Profile + particulars card */
.profile {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(16rem, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.card {
  border: 1px solid var(--line-strong);
  padding: 0.9rem;
  background: var(--paper-2);
  position: relative;
}
.card::before {
  content: "Particulars";
  position: absolute; top: -0.62rem; left: 0.8rem;
  padding: 0 0.45rem; background: var(--paper);
  font: 400 0.68rem/1.2 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent);
}
.portrait {
  width: 100%; aspect-ratio: 4 / 5; object-fit: cover;
  object-position: 50% 20%;
  filter: saturate(0.9);
}
.spec { margin-top: 0.6rem; }
.spec > div {
  display: grid; grid-template-columns: 6.2rem minmax(0, 1fr); gap: 0.75rem;
  padding: 0.55rem 0.1rem; border-top: 1px solid var(--line);
}
.spec dt { font: 400 0.68rem/1.55 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); padding-top: 0.12rem; }
.spec dd { font-size: 0.93rem; line-height: 1.4; }

/* Practice */
.facets {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}
.facets li { padding: 1.4rem clamp(1rem, 2vw, 2rem) 0.5rem 0; }
.facets li + li { padding-left: clamp(1rem, 2vw, 2rem); border-left: 1px solid var(--line); }
.facets h3 { font: 400 clamp(1.35rem, 2vw, 1.7rem)/1.15 var(--display); margin: 0.9rem 0 0.8rem; }
.facets p { color: var(--ink-2); font-size: 0.98rem; }

.frames { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-top: 3.5rem; }
.frames img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.frames figcaption { margin-top: 0.5rem; }

/* Repos */
.repos { border-top: 1px solid var(--line-strong); }
.repos a {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 2fr) auto;
  align-items: baseline; gap: 0.4rem 2rem;
  padding: 1.15rem 0.1rem; border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: padding 0.25s ease, color 0.2s ease;
}
.repos a:hover { padding-left: 0.7rem; }
.repo-name { font: 400 1.02rem/1.3 var(--mono); letter-spacing: -0.01em; }
.repo-desc { color: var(--ink-2); font-size: 0.96rem; }
.repos a:hover .repo-desc { color: var(--ink); }
.repo-meta { white-space: nowrap; text-align: right; }
.stars:not(:empty)::before { content: "· ★ "; }
.more { margin-top: 1.6rem; font: 400 0.8rem var(--mono); letter-spacing: 0.04em; }
.aside-note {
  margin-top: 2.6rem; padding-top: 1.1rem; border-top: 1px solid var(--line);
  max-width: var(--measure); color: var(--ink-2); font-size: 0.9rem;
}

/* Now */
.now .big { max-width: 22ch; }
.now .big + .label { margin-top: 1.4rem; }
.now .big + .label::before {
  content: ""; display: inline-block; width: 0.5rem; height: 0.5rem; margin-right: 0.6rem;
  border-radius: 50%; background: var(--accent); vertical-align: 0.02em;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.25; } }

/* Links */
.links { border-top: 1px solid var(--line-strong); }
.links a {
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
  padding: 0.9rem 0.1rem; border-bottom: 1px solid var(--line);
  text-decoration: none;
  font: 200 clamp(1.7rem, 4.4vw, 3.2rem)/1.15 var(--display);
  letter-spacing: 0.05em; text-transform: uppercase;
  transition: padding 0.25s ease;
}
.links a:hover { padding-left: 0.7rem; }
.links a:hover .label { color: var(--accent); }

/* Footer */
.foot {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 2rem;
  padding: 1.6rem var(--gutter) 2.4rem;
}

/* 3D entrances swing a little past the page edge; clip them without creating a scroll container
   (overflow: hidden here would break the sticky section headings). */
main { overflow-x: clip; }

/* ── The scene: a fixed WebGL layer behind everything ── */
.scene {
  position: fixed; inset: 0; z-index: -1;
  width: 100%; height: 100vh; height: 100lvh;
  display: block; pointer-events: none;
}
.webgl .stone { visibility: hidden; }            /* the 3D stone takes the flat one's place, not its space */
.webgl .card { background: color-mix(in srgb, var(--paper-2) 86%, transparent); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }

/* Scroll-driven entrances are written inline by main.js; these are the fixed parts */
.enter { transform-origin: 50% 100%; backface-visibility: hidden; }
.links > .enter { transform-origin: 0 50%; }
.card.enter { transform-origin: 100% 50%; }
.hero-text { transform-origin: 0 60%; will-change: transform, opacity; }
@media (prefers-reduced-motion: no-preference) { .js .banner img { transform: scale(1.22); will-change: transform; } }

/* Scroll progress, along the bottom edge of the top bar */
.progress {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: 0 50%;
}

/* ── Smaller screens ─────────────────────────────────── */
@media (max-width: 900px) {
  .hero-pin { grid-template-columns: 1fr; min-height: 0; padding-top: 2.5rem; }
  .hero-stone { order: -1; width: min(78vw, 420px); }
  .block { grid-template-columns: 1fr; }
  .block > :not(.block-head) { grid-column: 1; }
  .block-head { position: static; grid-row: auto; display: flex; align-items: baseline; gap: 0.9rem; margin-bottom: 2rem; }
  .block-head h2 { margin-top: 0; }
  .profile { grid-template-columns: 1fr; }
  .card { max-width: 24rem; }
  .facets { grid-template-columns: 1fr; }
  .facets li, .facets li + li { padding: 1.4rem 0 1.6rem; border-left: 0; }
  .facets li + li { border-top: 1px solid var(--line); }
  .repos a { grid-template-columns: 1fr; gap: 0.25rem; }
  .repo-meta { text-align: left; margin-top: 0.3rem; }
  .frames { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px) {
  .top { gap: 0.6rem; }
  .top nav { gap: 0.7rem; }
  .top nav a { font-size: 0.62rem; letter-spacing: 0.05em; }
}

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

@media print {
  .top, .hero-stone, .banner { display: none; }
  .block { padding: 1.5rem 0; }
}