/* ------------------------------------------------------------
   Axel Paris portfolio
   Look: lab notebook / technical drawing
   ------------------------------------------------------------ */

:root {
  --paper: #f3f0e8;
  --paper-2: #ebe7dc;
  --ink: #1d1c1a;
  --ink-soft: #5d5a53;
  --line: #cfc9bb;
  --accent: #c8461b;      /* slightly faded safety orange */
  --ok: #3d7a4a;

  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --serif: "Fraunces", Georgia, serif;

  --w: 1080px;
  --gutter: clamp(16px, 4vw, 40px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.6 var(--sans);
  /* light graph-paper grid */
  background-image:
    linear-gradient(var(--paper-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--paper-2) 1px, transparent 1px);
  background-size: 24px 24px;
}

a { color: inherit; text-decoration-color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent); }

img, video { display: block; max-width: 100%; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px var(--gutter);
  background: var(--paper);
  border-bottom: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 13px;
}
.brand { font-weight: 500; text-decoration: none; }
.topbar nav { display: flex; gap: 22px; }
.topbar nav a { text-decoration: none; }
.topbar nav a.is-current { color: var(--accent); }

main { max-width: var(--w); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- intro ---------- */
.intro {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-areas:
    "kicker photo"
    "title  photo"
    "lede   photo"
    "status photo";
  column-gap: 48px;
  align-content: start;
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--line);
}
.kicker { grid-area: kicker; }
.intro h1 { grid-area: title; }
.lede { grid-area: lede; }
.status { grid-area: status; }
.intro-photo { grid-area: photo; margin: 0; align-self: center; }

.kicker {
  margin: 0 0 8px;
  font: 400 12px var(--mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-soft);
}
h1 {
  margin: 0 0 20px;
  font: 600 clamp(44px, 7vw, 78px)/1 var(--serif);
  letter-spacing: -.02em;
}
.lede { margin: 0 0 22px; font-size: 18px; max-width: 34em; }
.status {
  display: inline-flex; align-items: center; gap: 10px;
  margin: 0; font: 400 14px var(--mono);
}
.dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 25%, transparent);
}
.intro-photo img, .intro-photo .placeholder { aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }

/* ---------- sections ---------- */
.section { padding: 64px 0; border-bottom: 1px solid var(--line); }
.section-head {
  display: flex; flex-wrap: wrap; gap: 16px 32px;
  justify-content: space-between; align-items: baseline;
  margin-bottom: 28px;
}
h2 {
  margin: 0;
  font: 600 32px/1.1 var(--serif);
}

/* ---------- filters ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 6px; }
.filter {
  font: 400 12px var(--mono);
  padding: 5px 10px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  border-radius: 0;
}
.filter:hover { background: var(--paper-2); }
.filter.is-active { background: var(--ink); color: var(--paper); }

/* ---------- project index ---------- */
.index {
  list-style: none; margin: 0 0 56px; padding: 0;
  border-top: 1px solid var(--ink);
  font-family: var(--mono); font-size: 14px;
}
.index li { border-bottom: 1px dashed var(--line); }
.index a {
  display: grid;
  grid-template-columns: 3ch 1fr auto;
  gap: 16px;
  padding: 10px 0;
  text-decoration: none;
}
.index a:hover { background: var(--paper-2); color: var(--ink); }
.index a:hover .idx-title { color: var(--accent); }
.index .idx-num, .index .idx-year { color: var(--ink-soft); }
.index li.is-hidden, .project.is-hidden { display: none; }

/* ---------- project entry ---------- */
.project {
  padding: 40px 0 48px;
  border-top: 1px solid var(--ink);
  scroll-margin-top: 60px;
}
.project-head { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.num { font: 500 14px var(--mono); color: var(--accent); }
.project h3 {
  margin: 0;
  font: 600 clamp(22px, 3vw, 28px)/1.2 var(--serif);
}
.badge {
  font: 400 11px var(--mono);
  text-transform: uppercase; letter-spacing: .06em;
  padding: 2px 7px;
  border: 1px solid var(--accent); color: var(--accent);
}

.meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 20px 0 22px;
  border: 1px solid var(--line);
  background: var(--paper);
}
.meta > div { padding: 10px 12px; border-right: 1px solid var(--line); }
.meta > div:last-child { border-right: 0; }
.meta dt {
  font: 400 11px var(--mono);
  text-transform: uppercase; letter-spacing: .06em;
  color: var(--ink-soft);
}
.meta dd { margin: 2px 0 0; font-size: 14px; }

.project-body { max-width: 62ch; }
.project-body p { margin: 0 0 12px; }
.todo {
  font: 400 13px var(--mono);
  color: var(--accent);
  border-left: 2px solid var(--accent);
  padding-left: 10px;
}

/* ---------- media ---------- */
.media {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
}
.media figure { margin: 0; }
.media figure.wide { grid-column: span 2; grid-row: span 2; }
.media img, .media video, .media .placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--paper-2);
  border: 1px solid var(--line);
}
.media figure.wide img, .media figure.wide video, .media figure.wide .placeholder { height: 100%; aspect-ratio: auto; min-height: 260px; }
.media img { cursor: zoom-in; }
figcaption {
  margin-top: 6px;
  font: 400 12px var(--mono);
  color: var(--ink-soft);
}

/* shown while an image/video file doesn't exist yet */
.placeholder {
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  gap: 6px; padding: 16px; text-align: center;
  font: 400 12px var(--mono); color: var(--ink-soft);
  background:
    repeating-linear-gradient(45deg, transparent 0 10px, color-mix(in srgb, var(--line) 45%, transparent) 10px 11px),
    var(--paper-2) !important;
  border: 1px dashed var(--ink-soft) !important;
}
.placeholder b { color: var(--ink); font-weight: 500; }

.links { margin: 18px 0 0; font: 400 14px var(--mono); }

/* ---------- background ---------- */
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.col-title {
  margin: 0 0 14px;
  font: 400 12px var(--mono);
  text-transform: uppercase; letter-spacing: .08em;
  color: var(--ink-soft);
}
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li {
  display: grid; grid-template-columns: 8ch 1fr; gap: 12px;
  padding: 12px 0;
  border-top: 1px dashed var(--line);
}
.timeline .when { font: 400 13px var(--mono); color: var(--ink-soft); padding-top: 2px; }
.timeline strong { display: block; font-weight: 600; }
.timeline span:not(.when) { display: block; font-size: 14px; color: var(--ink-soft); }

.skills { margin-top: 44px; }
.skills p { margin: 0; max-width: 70ch; }
.skills b { font: 500 12px var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--accent); margin-right: 4px; }

/* ---------- contact ---------- */
.contact { border-bottom: 0; }
.contact-line { font: 400 22px/1.4 var(--serif); margin: 0 0 24px; }
.contact-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.contact-list li {
  display: grid; grid-template-columns: 10ch 1fr; gap: 16px;
  padding: 12px 0; border-bottom: 1px dashed var(--line);
  font-family: var(--mono); font-size: 14px;
}
.contact-list span { color: var(--ink-soft); }
.contact-list a { word-break: break-all; }

/* ---------- footer ---------- */
.footer {
  display: flex; justify-content: space-between;
  max-width: var(--w); margin: 0 auto;
  padding: 24px var(--gutter) 40px;
  font: 400 12px var(--mono); color: var(--ink-soft);
}

/* ---------- lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 50;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 48px 16px;
  background: rgba(20, 19, 17, .92);
}
.lightbox[hidden] { display: none; }
.lightbox img { max-height: 80vh; width: auto; border: 1px solid #444; }
.lightbox-caption { color: #ddd; font: 400 13px var(--mono); margin: 12px 0 0; }
.lightbox-close {
  position: absolute; top: 16px; right: 16px;
  font: 400 13px var(--mono); color: #ddd;
  background: none; border: 1px solid #666; padding: 6px 10px; cursor: pointer;
}

/* ---------- responsive ---------- */
@media (max-width: 760px) {
  .intro {
    grid-template-columns: 1fr;
    grid-template-areas: "kicker" "title" "lede" "status" "photo";
    padding-top: 40px;
  }
  .intro-photo { margin-top: 32px; }
  .meta { grid-template-columns: 1fr; }
  .meta > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .meta > div:last-child { border-bottom: 0; }
  .media { grid-template-columns: 1fr 1fr; }
  .media figure.wide { grid-column: 1 / -1; grid-row: auto; }
  .media figure.wide img, .media figure.wide video, .media figure.wide .placeholder { aspect-ratio: 16 / 9; min-height: 0; }
  .cols { grid-template-columns: 1fr; gap: 32px; }
  .topbar nav { gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}