/* oslal — v0.5.0  →  css/style.css */

@font-face {
  font-family: 'PP Neue Montreal';
  src: url('/assets/fonts/PPNeueMontreal-Regular.otf') format('opentype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --guide: #00ff00;
  --fg: #000000;
  --bg: #ffffff;
  --muted: #888888;

  /* Grid — keep in sync with GRID in js/main.js */
  --gutter: 16px;
  --margin: 24px;

  /* Row height — JS overrides this with a px value on load/resize.
     Fallback mirrors the same formula: (100vh - 2*margin - 5*gutter)/6. */
  --row-h: calc((100vh - 48px - 80px) / 6);

  /* Typography scale */
  --head-size:  24px;   /* column headers, section headings */
  --title-size: 64px;   /* project title */
  --sub-size:   16px;   /* subtitles */
  --body-size:  10px;   /* dense body copy */
}

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

html, body { width: 100%; min-height: 100%; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'PP Neue Montreal', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 14px;
  letter-spacing: -0.01em;
  line-height: 1.2;
  -webkit-font-smoothing: antialiased;
}

/* Landing is a single viewport (no scroll) */
body[data-page="index"] { overflow: hidden; height: 100%; }

/* ---------- Welcome model: full-screen, fades in on load ---------- */
#model {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  background-color: transparent;
  --progress-bar-color: transparent;
  opacity: 0;
  transition: opacity 0.6s ease;
}
#model.loaded { opacity: 1; }

/* ---------- Page grid: 10 cols, 24px margin, 16px gutter ---------- */
.page-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: var(--gutter);
  padding: var(--margin);
  min-height: 100vh;
  pointer-events: none;        /* clicks pass through to the model behind */
}

/* Landing: fixed 6 rows filling the viewport */
body[data-page="index"] .page-grid {
  height: 100vh;
  grid-template-rows: repeat(6, var(--row-h));
}

/* Scrolling pages: rows snap to the same square-ish height, grow as needed */
body[data-page="archives"] .page-grid,
body[data-page="informations"] .page-grid,
body[data-page="project"] .page-grid {
  grid-auto-rows: var(--row-h);
}

/* Archives: nav (1) + headers (2) fixed, list (3) absorbs slack, footer follows */
body[data-page="archives"] .page-grid {
  grid-template-rows: var(--row-h) var(--row-h) minmax(var(--row-h), 1fr);
}

/* ---------- Navigation ---------- */
.nav-item {
  align-self: start;
  pointer-events: auto;
  color: var(--fg);
  text-decoration: none;
  font: inherit;
  letter-spacing: inherit;
  background: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s;
}
.nav-item:hover { opacity: 0.5; }

.nav-name     { grid-column: 1;  grid-row: 1; }
.nav-archives { grid-column: 6;  grid-row: 1; }
.nav-info     { grid-column: 7;  grid-row: 1; }
.nav-lang     { grid-column: 10; grid-row: 1; justify-self: end; }

/* Active-page indicator — filled circle */
.nav-item.active::after {
  content: '';
  display: inline-block;
  width: 0.55em;
  height: 0.55em;
  margin-left: 0.45em;
  border-radius: 50%;
  background: var(--fg);
  vertical-align: 0.02em;
}

/* ---------- External link arrow ---------- */
.ext-link {
  color: inherit;
  text-decoration: none;
  pointer-events: auto;
}
.ext-link::after { content: '\2197'; margin-left: 0.15em; }   /* ↗ */
.ext-link:hover { text-decoration: underline; }

/* ---------- Archives: column headers (row 2) ---------- */
.col-head {
  grid-row: 2;
  align-self: start;
  font-size: var(--head-size);
}
.head-project     { grid-column: 1 / span 5; }
.head-type        { grid-column: 6; }
.head-institution { grid-column: 7 / span 2; }
.head-date        { grid-column: 10; justify-self: end; }

/* ---------- Archives: project list (row 3, grows) ---------- */
.project-list {
  grid-column: 1 / span 10;
  grid-row: 3;
  align-self: start;
  pointer-events: auto;
  position: relative;
}
.project-row {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: var(--gutter);
  padding: 0.15em 0;
}
.project-row > * { min-width: 0; }
.p-name { grid-column: 1 / span 5; }
.p-type { grid-column: 6; }
.p-inst { grid-column: 7 / span 2; }
.p-date { grid-column: 10; text-align: right; }
.p-name a { color: inherit; text-decoration: none; }
.p-name a:hover { text-decoration: underline; }

/* Hover preview floating over the list */
#list-preview {
  position: absolute;
  top: 0;
  left: 41.5%;                 /* roughly over columns 5–7 */
  width: 26%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.18s ease;
  z-index: 5;
}
#list-preview.visible { opacity: 1; }
#list-preview img { width: 100%; display: block; }

/* ---------- Informations ---------- */
.info-soon {
  grid-column: 6 / span 5;
  grid-row: 3;
  align-self: start;
  font-size: var(--head-size);
}

.info-section { pointer-events: auto; align-self: start; }
.info-section .label {
  font-size: var(--body-size);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 0.6em;
}
.info-section ul { list-style: none; }
.info-section li { margin-bottom: 0.5em; }
.info-section .sub { color: var(--muted); }
.info-section a { color: inherit; }

.info-contact   { grid-column: 1 / span 4;  grid-row: 2; }
.info-experience{ grid-column: 1 / span 5;  grid-row: 3; }
.info-education { grid-column: 1 / span 5;  grid-row: 4; }
.info-awards    { grid-column: 6 / span 5;  grid-row: 3 / span 2; }

/* ---------- Project page (archives/<slug>/) ---------- */
.project-title {
  grid-column: 1 / span 5;
  grid-row: 2;
  align-self: end;
  font-size: var(--title-size);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -0.02em;
  pointer-events: auto;
}
.project-award {
  grid-column: 6 / span 3;
  grid-row: 2;
  align-self: end;
  pointer-events: auto;
}
.project-collaborators {
  grid-column: 9 / span 2;
  grid-row: 2;
  align-self: end;
  justify-self: end;
  text-align: right;
  color: var(--muted);
  pointer-events: auto;
}

/* Main image — square focal point, left half */
.project-main-image {
  grid-column: 1 / span 5;
  grid-row: 3 / span 3;
  align-self: start;
  pointer-events: auto;
}
.project-main-image img {
  width: 100%;
  display: block;
  object-fit: cover;
}

/* Right column: metadata + subtitle + flowing body, grows with content */
.project-info {
  grid-column: 6 / span 5;
  grid-row: 3;
  align-self: start;
  pointer-events: auto;
}

/* Metadata strip mirrors the 5 right-hand columns */
.project-meta {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--gutter);
  margin-bottom: 1.5em;
}
.pm-type { grid-column: 1; }
.pm-inst { grid-column: 2 / span 3; }
.pm-date { grid-column: 5; text-align: right; }
.project-meta .ml {
  display: block;
  font-size: var(--body-size);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 0.4em;
}

.project-subtitle {
  font-size: var(--sub-size);
  margin-bottom: 1.2em;
}
.project-body {
  font-size: var(--body-size);
  line-height: 1.5;
  column-count: 2;
  column-gap: var(--gutter);
}
.project-body p { margin-bottom: 0.8em; }

/* Extra images flow full-width below */
.project-extra {
  grid-column: 1 / span 10;
  align-self: start;
  pointer-events: auto;
  margin-top: var(--gutter);
}
.project-extra img { width: 100%; display: block; margin-bottom: var(--gutter); }

/* ---------- Footer (© expands on click) ---------- */
.footer {
  grid-column: 1 / span 4;
  grid-row: 6;
  align-self: end;
  pointer-events: auto;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
body[data-page="archives"] .footer,
body[data-page="informations"] .footer,
body[data-page="project"] .footer { grid-row: auto; }

.footer .full {
  display: inline-block;
  max-width: 0;
  overflow: hidden;
  vertical-align: bottom;
  opacity: 0;
  transition: max-width 0.4s ease, opacity 0.3s ease;
}
.footer.open .full { max-width: 30ch; opacity: 1; }

/* ---------- Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  transition-delay: calc(var(--i, 0) * 40ms);
}
.reveal.in-view { opacity: 1; transform: none; }

/* Nav fade/slide on load */
@keyframes navIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}
.nav-item {
  animation: navIn 0.5s ease both;
}
.nav-name     { animation-delay: 0.00s; }
.nav-archives { animation-delay: 0.06s; }
.nav-info     { animation-delay: 0.12s; }
.nav-lang     { animation-delay: 0.18s; }

/* Project title rises in */
.project-title { animation: navIn 0.6s ease both; animation-delay: 0.1s; }

/* ---------- Grid overlay ---------- */
#grid-canvas {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 100;
}
#grid-canvas.visible { opacity: 1; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  #model { opacity: 1; transition: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .nav-item, .project-title { animation: none; }
  .footer .full { transition: none; }
}