/* Fieldmouse Works — organization landing page
   Palette and type are derived from the monochrome mark: ink ground,
   one shaft of paper-coloured light, straw-gold used only for state. */

:root {
  --ink: #0b0b0b;
  --ink-2: #171716;
  --graphite: #3a3a38;
  --ash: #9c9a93;
  --paper: #ede9e0;
  --straw: #c9a24a;

  --display: "Big Shoulders Display", "Oswald", "Arial Narrow", sans-serif;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --measure: 34rem;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --shaft-angle: 34deg;
}

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

html { color-scheme: dark; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--straw); }
a:focus-visible { outline: 2px solid var(--straw); outline-offset: 3px; }
img { display: block; max-width: 100%; height: auto; }

/* ---------- masthead ---------- */

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem var(--gutter);
  border-bottom: 1px solid var(--ink-2);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 0.95;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.brand img { width: 40px; height: 40px; }

.masthead nav { display: flex; gap: 1.5rem; }
.masthead nav a {
  font-family: var(--mono);
  font-size: 0.8125rem;
  text-decoration: none;
  color: var(--ash);
}
.masthead nav a:hover { color: var(--straw); }

/* ---------- hero: the light shaft ---------- */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(3rem, 8vh, 6rem) var(--gutter) clamp(3rem, 8vh, 6rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  column-gap: var(--gutter);
}

/* The shaft is the diagonal slash from the mark, scaled to the page.
   It opens on load, from the top-right, like a door. */
.shaft {
  position: absolute;
  z-index: 0;
  top: -40%;
  right: 12%;
  width: clamp(14rem, 28vw, 24rem);
  height: 190%;
  background: var(--paper);
  transform-origin: top center;
  transform: rotate(var(--shaft-angle)) scaleX(1);
  animation: open 1.1s cubic-bezier(0.2, 0.8, 0.2, 1) both;
  animation-delay: 0.15s;
}

@keyframes open {
  from { transform: rotate(var(--shaft-angle)) scaleX(0.02); }
  to   { transform: rotate(var(--shaft-angle)) scaleX(1); }
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 60rem;
  mix-blend-mode: difference; /* text inverts where it crosses the shaft */
}

.hero h1 {
  margin: 0 0 1.5rem;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(3.75rem, 12vw, 10.5rem);
  line-height: 0.86;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  color: var(--paper);
}
.hero h1 span { display: block; }
.hero h1 span:nth-child(2) { padding-left: 0.12em; }

.lede {
  max-width: var(--measure);
  margin: 0 0 2rem;
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  color: var(--paper);
}

.hero-links { margin: 0; }
.button {
  display: inline-block;
  padding: 0.7rem 1.1rem;
  border: 1.5px solid var(--paper);
  font-family: var(--mono);
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--paper);
}
.button:hover { background: var(--paper); color: var(--ink); }

.hero-mark {
  position: relative;
  z-index: 1;
  width: clamp(12rem, 24vw, 22rem);
  margin-bottom: -0.5rem;
  mix-blend-mode: difference;
  opacity: 0.95;
  animation: rise 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) both;
  animation-delay: 0.5s;
}
@keyframes rise {
  from { opacity: 0; transform: translateY(2rem); }
  to   { opacity: 0.95; transform: none; }
}

/* ---------- section scaffolding ---------- */

.eyebrow {
  margin: 0 0 2.5rem;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ash);
}
.eyebrow::before { content: "// "; color: var(--graphite); }

/* ---------- projects ---------- */

.projects {
  padding: clamp(3rem, 8vh, 6rem) var(--gutter);
  border-top: 1px solid var(--ink-2);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  column-gap: clamp(2rem, 6vw, 6rem);
  row-gap: 3rem;
}
.projects > .eyebrow, .projects > .supporting { grid-column: 1 / -1; }

.project { max-width: var(--measure); }
.project > header { margin-bottom: 1.25rem; }
.project h3 {
  margin: 0 0 0.75rem;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 0.9;
  text-transform: uppercase;
}
.project h3 a { text-decoration: none; }
.project h3 a:hover { color: var(--straw); }

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin: 0;
  font-family: var(--mono);
  font-size: 0.8125rem;
}
.meta div { display: flex; gap: 0.5rem; }
.meta dt { color: var(--ash); }
.meta dt::after { content: ":"; }
.meta dd { margin: 0; }
.meta .status { color: var(--straw); }

.project p { margin: 0 0 1rem; }
.caution {
  font-style: italic;
  color: var(--ash);
}
.repo-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 0.8125rem;
}

.supporting {
  margin: 0;
  max-width: var(--measure);
  color: var(--ash);
}

/* ---------- the name ---------- */

.name {
  padding: clamp(3rem, 8vh, 6rem) var(--gutter);
  border-top: 1px solid var(--ink-2);
}
.name blockquote {
  margin: 0;
  max-width: 44rem;
  font-size: clamp(1.375rem, 2.6vw, 2rem);
  line-height: 1.35;
  font-weight: 400;
}
.name blockquote p { margin: 0; }

/* ---------- colophon ---------- */

.colophon {
  padding: clamp(2.5rem, 6vh, 4rem) var(--gutter);
  border-top: 1px solid var(--ink-2);
  color: var(--ash);
  font-size: 0.9375rem;
}
.colophon p { max-width: var(--measure); margin: 0 0 1rem; }
.colophon .links { display: flex; flex-wrap: wrap; gap: 1.5rem; font-family: var(--mono); font-size: 0.8125rem; }
.colophon .fine { font-size: 0.8125rem; margin: 0; }

/* ---------- responsive ---------- */

@media (max-width: 40rem) {
  .masthead nav { gap: 1rem; }
  .masthead nav a { white-space: nowrap; }
  .masthead nav a:nth-child(2) { display: none; }
  .brand span { font-size: 0.95rem; }
  .hero { grid-template-columns: 1fr; }
  .shaft { right: -10%; width: 40vw; }
  .hero-mark { width: 9rem; justify-self: end; margin-top: 1.5rem; margin-bottom: 0; opacity: 0.8; }
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .shaft, .hero-mark { animation: none; }
}