/* Layout: a topographic field up top, then one long editorial column:
   prose and a photo, big-type truths, a plain-text bio for AI. Dark sea-depth first,
   pale-foam paper for light mode. One accent: seafoam. */
@font-face { font-family: "Archivo"; src: url(../fonts/archivo-latin-wdth-normal.woff2) format("woff2"); font-weight: 100 900; font-stretch: 62% 125%; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url(../fonts/newsreader-latin-wght-normal.woff2) format("woff2"); font-weight: 200 800; font-style: normal; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url(../fonts/newsreader-latin-wght-italic.woff2) format("woff2"); font-weight: 200 800; font-style: italic; font-display: swap; }
@font-face { font-family: "Martian Mono"; src: url(../fonts/martian-mono-latin-wdth-normal.woff2) format("woff2"); font-weight: 100 800; font-stretch: 75% 112.5%; font-display: swap; }

:root {
  --bg: #0a1615;        /* deep water */
  --bg-2: #0f1f1d;      /* raised surface */
  --fg: #e6efec;        /* foam white */
  --muted: #8ea6a0;     /* tide grey, green-biased */
  --line: #1f3532;      /* rules and borders */
  --accent: #8fe3cf;    /* seafoam */
  --accent-ink: #062320;/* text on accent */
  --topo-line: #2f5a53; /* minor contours */

  --f-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-body: "Newsreader", Georgia, "Times New Roman", serif;
  --f-mono: "Martian Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --step--1: clamp(.78rem, .74rem + .15vw, .86rem);
  --step-0: clamp(1.06rem, 1rem + .3vw, 1.25rem);
  --step-1: clamp(1.35rem, 1.2rem + .7vw, 1.8rem);
  --step-2: clamp(1.8rem, 1.4rem + 1.8vw, 3rem);
  --step-3: clamp(2.4rem, 1.6rem + 3.6vw, 5rem);
  --step-hero: clamp(4.6rem, 1rem + 17vw, 17rem);

  --gutter: clamp(16px, 4vw, 56px);
  --maxw: 1240px;
  --ease: cubic-bezier(.2, .7, .1, 1);
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #eef3f0; --bg-2: #e2ebe7; --fg: #0b1a18; --muted: #4f6863;
    --line: #c9d8d3; --accent: #0e7b67; --accent-ink: #f2fbf8; --topo-line: #b3cbc4;
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #eef3f0; --bg-2: #e2ebe7; --fg: #0b1a18; --muted: #4f6863;
  --line: #c9d8d3; --accent: #0e7b67; --accent-ink: #f2fbf8; --topo-line: #b3cbc4;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--f-body);
  font-size: var(--step-0);
  line-height: 1.55;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}
img, canvas { max-width: 100%; }
a { color: inherit; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }

h1, h2, h3 { font-family: var(--f-display); margin: 0; text-wrap: balance; font-weight: 700; }
h2 { font-size: var(--step-3); line-height: .98; letter-spacing: -.02em; font-stretch: 88%; }
h3 { font-size: var(--step-1); line-height: 1.1; letter-spacing: -.01em; }
p { margin: 0; }
.mono { font-family: var(--f-mono); font-stretch: 90%; }
.eyebrow {
  font-size: var(--step--1); text-transform: uppercase; letter-spacing: .14em;
  color: var(--accent); margin-bottom: 1.25rem;
}
.wrap { width: 100%; max-width: calc(var(--maxw) + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -9999px; top: 0; }
.skip:focus { left: 16px; top: 16px; z-index: 100; background: var(--accent); color: var(--accent-ink); padding: .5rem .9rem; border-radius: 6px; }

/* ---------- top bar ---------- */
.bar {
  position: fixed; inset: 0 0 auto 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: calc(env(safe-area-inset-top, 0px) + 14px) var(--gutter) 14px;
  color: var(--fg); pointer-events: none;
  transition: color .3s;
}
.bar::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: opacity .3s, background-color .3s;
}
.bar.is-scrolled::before { opacity: 1; }
.bar.on-accent { color: var(--accent-ink); }
.bar.on-accent::before { background: color-mix(in srgb, var(--accent) 85%, transparent); border-color: transparent; }
.bar a, .bar p { pointer-events: auto; }
.mark { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; font-family: var(--f-display); font-weight: 800; letter-spacing: .04em; }
.mark svg { width: 34px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; }
.bar__meta { display: flex; gap: 1.4rem; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; }
.bar__meta > span { display: inline-flex; align-items: center; gap: .45rem; white-space: nowrap; }
.bar__elev { color: var(--accent); font-variant-numeric: tabular-nums; }
.bar.on-accent .bar__elev { color: inherit; }
.bar__elev svg { width: 11px; height: 11px; fill: currentColor; }
.dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .25; } }
@media (max-width: 720px) { .bar__meta > .bar__coords { display: none; } .bar__meta { gap: .9rem; } }
@media (max-width: 420px) { .bar__meta > span:first-child { display: none; } }

/* ---------- hero ---------- */
.hero {
  position: relative; isolation: isolate;
  min-height: min(100svh, 980px);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding-block: 7rem 3rem;
  overflow: hidden;
}
.topo {
  position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1;
  background:
    radial-gradient(120% 80% at 70% 20%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    var(--bg);
}
.hero::after { /* fade into page */
  content: ""; position: absolute; inset: auto 0 0 0; height: 30%; z-index: -1; pointer-events: none;
  background: linear-gradient(to bottom, transparent, var(--bg));
}
.hero__inner { width: 100%; max-width: calc(var(--maxw) + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }
.hero__name {
  --wdth: 112;
  font-size: var(--step-hero);
  line-height: .8;
  letter-spacing: -.045em;
  font-weight: 800;
  font-variation-settings: "wdth" var(--wdth);
  text-transform: uppercase;
  display: flex; flex-direction: column;
  margin-bottom: clamp(1.5rem, 4vw, 3rem);
}
.hero__name .line { display: block; overflow: hidden; padding-bottom: .04em; }
.hero__name .line--right { align-self: flex-end; color: transparent; -webkit-text-stroke: 2px var(--fg); }
@supports not (-webkit-text-stroke: 1px black) { .hero__name .line--right { color: var(--fg); } }
.hero__foot { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 2rem; align-items: end; }
.hero__lede { font-size: var(--step-1); line-height: 1.3; max-width: 30ch; font-style: italic; font-weight: 400; }
.counter { justify-self: end; text-align: right; }
.counter__label { font-size: var(--step--1); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin-bottom: .4rem; }
.counter__value { font-size: clamp(1.1rem, .8rem + 1.4vw, 2rem); font-variant-numeric: tabular-nums; letter-spacing: -.02em; color: var(--accent); white-space: nowrap; }
.counter__value small { font-size: .5em; letter-spacing: .1em; text-transform: uppercase; margin: 0 .6em 0 .35em; color: var(--muted); }
.hero__hint { position: absolute; left: 50%; bottom: 1.1rem; transform: translateX(-50%); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
@media (hover: none) { .hero__hint { display: none; } }
@media (max-width: 760px) {
  .hero { padding-block: 6rem 2.5rem; }
  .hero__foot { grid-template-columns: 1fr; }
  .counter { justify-self: start; text-align: left; }
  .hero__name .line--right { -webkit-text-stroke-width: 1.4px; }
}

/* ---------- short version ---------- */
.short { padding-block: clamp(6rem, 14vw, 12rem); }
.short__text {
  font-family: var(--f-display); font-weight: 500;
  font-size: var(--step-2); line-height: 1.14; letter-spacing: -.015em;
  font-stretch: 92%;
  max-width: 30ch; text-wrap: pretty;
}
.short__text a { color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: .12em; }
.word { display: inline-block; white-space: nowrap; }

/* short version sits beside the photo */
.short { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: center; }
.short__copy { min-width: 0; }
.short .eyebrow { margin-bottom: 1.25rem; }
.photo { margin: 0; display: grid; gap: .8rem; }
.photo__frame { overflow: hidden; border-radius: 6px; aspect-ratio: 3 / 4; max-width: 100%; background: var(--bg-2); }
.photo__frame img { display: block; width: 100%; height: 100%; object-fit: cover; }
.photo figcaption { font-size: .66rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.photo figcaption::before { content: ""; display: inline-block; width: 1.6em; height: 1px; background: var(--accent); vertical-align: middle; margin-right: .7em; }
@media (max-width: 860px) {
  .short { grid-template-columns: 1fr; }
  .photo { max-width: 30rem; }
}

/* ---------- truths ---------- */
.truths { padding-block: clamp(5rem, 10vw, 8rem); }
.truths__list { list-style: none; margin: 0; padding: 0; }
.truths__list li {
  font-family: var(--f-display); font-weight: 700;
  font-size: clamp(1.9rem, 1rem + 4vw, 4.6rem); line-height: 1; letter-spacing: -.03em;
  --wdth: 75; font-variation-settings: "wdth" var(--wdth);
  padding-block: .35em; border-bottom: 1px solid var(--line);
  text-wrap: balance;
  transition: font-variation-settings .6s var(--ease), color .3s, padding-left .6s var(--ease);
}
.truths__list li:first-child { border-top: 1px solid var(--line); }
@media (hover: hover) {
  .truths__list li:hover { font-variation-settings: "wdth" 100; color: var(--accent); padding-left: .4em; }
}

/* ---------- reading ---------- */
.reading { padding-block: 0 clamp(6rem, 12vw, 10rem); }
.reading .eyebrow { margin-bottom: 1.5rem; }
.reading__list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.reading__list li { border-bottom: 1px solid var(--line); }
.reading__item {
  display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: baseline; gap: 1.5rem;
  padding-block: .9rem; text-decoration: none; color: var(--fg);
}
.reading__name {
  --wdth: 75;
  font-family: var(--f-display); font-weight: 700;
  font-size: clamp(1.5rem, 1rem + 2.4vw, 3rem); line-height: 1.05; letter-spacing: -.025em;
  font-variation-settings: "wdth" var(--wdth);
  transition: font-variation-settings .6s var(--ease), color .3s;
  min-width: 0; text-wrap: balance;
}
.reading__by { font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); text-align: right; }
.reading__arrow { width: 1.1rem; height: 1.1rem; fill: none; stroke: var(--muted); stroke-width: 2; transition: transform .4s var(--ease), stroke .3s; }
.reading__item--book { grid-template-columns: minmax(0, 1fr) auto; }
@media (hover: hover) {
  a.reading__item:hover .reading__name { font-variation-settings: "wdth" 100; color: var(--accent); }
  a.reading__item:hover .reading__arrow { transform: translate(3px, -3px); stroke: var(--accent); }
}
@media (max-width: 640px) {
  .reading__item { grid-template-columns: minmax(0, 1fr) auto; row-gap: .25rem; }
  .reading__by { grid-column: 1; grid-row: 2; text-align: left; }
  .reading__arrow { grid-column: 2; grid-row: 1; }
  .reading__item--book .reading__by { grid-row: 2; }
}

/* ---------- machines ---------- */
.machines { padding-block: clamp(5rem, 11vw, 9rem); background: var(--bg-2); border-block: 1px solid var(--line); }
.machines__grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.machines h2 { font-size: var(--step-2); line-height: 1; max-width: 14ch; }
.machines__note { color: var(--muted); margin-top: 1.25rem; max-width: 36ch; }
.terminal { border: 1px solid var(--line); border-radius: 14px; background: var(--bg); overflow: hidden; min-width: 0; }
.terminal__bar {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: .7rem 1rem; border-bottom: 1px solid var(--line);
  font-size: .68rem; letter-spacing: .08em; color: var(--muted);
}
.terminal__copy {
  font: inherit; color: var(--accent); background: transparent; cursor: pointer;
  border: 1px solid var(--line); border-radius: 999px; padding: .3rem .8rem;
}
.terminal__copy:hover { border-color: var(--accent); }
.terminal__body {
  display: grid; gap: 1rem; padding: 1.4rem 1.2rem;
  font-family: var(--f-mono); font-stretch: 85%; font-size: .84rem; line-height: 1.7;
}
.terminal__body p::before { content: "> "; color: var(--accent); }
.terminal__foot { padding: .8rem 1.2rem; border-top: 1px solid var(--line); font-size: .68rem; color: var(--muted); }
.terminal__foot a { color: var(--accent); }
@media (max-width: 860px) { .machines__grid { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
.foot {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem 2rem;
  padding-block: 2rem calc(5rem + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--line);
  font-family: var(--f-mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}

.foot a { color: var(--fg); text-decoration-color: var(--accent); text-underline-offset: .25em; }

/* hide hero until the intro timeline takes over (removed by JS, with a timeout fallback) */
.js-intro .hero__inner, .js-intro .bar, .js-intro .hero__hint { visibility: hidden; }

/* ---------- cursor ---------- */
.cursor {
  position: fixed; left: 0; top: 0; z-index: 60; pointer-events: none;
  width: 14px; height: 14px; margin: -7px 0 0 -7px; border-radius: 50%;
  background: var(--fg); border: 1.5px solid var(--fg);
  transition: width .35s var(--ease), height .35s var(--ease), margin .35s var(--ease), opacity .3s, background-color .3s, border-color .3s;
  opacity: 0;
}
.cursor.is-on { opacity: .9; }
.cursor.is-big { width: 64px; height: 64px; margin: -32px 0 0 -32px; background: transparent; }
.cursor.on-accent { background: var(--accent-ink); border-color: var(--accent-ink); }
.cursor.on-accent.is-big { background: transparent; }
@media (hover: none), (pointer: coarse) { .cursor { display: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .cursor { display: none; }
}

/* page-position markers used for the elevation readout (see main.js) */
body { position: relative; }
.sentinels { position: absolute; inset: 0; pointer-events: none; visibility: hidden; }
.sentinels i { position: absolute; left: 0; width: 1px; height: 1px; }