/* =========================================================
   Editorial Portfolio — Data Visualization / Information Design
   Alles Anpassbare steht in :root (Farben, Schriften, Abstände)
   ========================================================= */

:root {
  /* Farben – Styleguide angelehnt an svenquadflieg.de */
  --paper:  #ffffff;
  --ink:    #000000;
  --muted:  #5c5c5c;
  --rule:   #d0d0d0;
  --accent: #0004ff;          /* Link-Hover: kräftiges Blau */
  --pink:   #f8c9df;          /* Flächenfarbe für hervorgehobene Bereiche */
  --mint:   #88eaae;          /* Linien / Unterstreichungen */
  --footer-bg:  #000000;
  --footer-ink: #f5f5f5;

  /* Schrift – eine geometrische Sans für alles (Sofia Pro, falls lizenziert/selbst gehostet) */
  --sans:  "sofia-pro", "Sofia Pro", "Avenir Next", Avenir, "Century Gothic", "Helvetica Neue", Arial, system-ui, sans-serif;
  --serif: var(--sans);
  --mono:  var(--sans);

  /* Typo-Skala (fluid) */
  --fs-xs: 0.8125rem;
  --fs-s:  0.9375rem;
  --fs-m:  1.125rem;
  --fs-l:  clamp(1.25rem, 1rem + 0.8vw, 1.625rem);
  --fs-xl: clamp(2rem, 1.2rem + 3.2vw, 4rem);

  /* Raster */
  --gutter: clamp(16px, 2.5vw, 32px);
  --margin: clamp(16px, 4vw, 56px);
  --section: clamp(4rem, 8vw, 8rem);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 var(--fs-m)/1.4 var(--sans);
  font-feature-settings: "kern", "liga", "tnum";
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
::selection { background: var(--accent); color: var(--paper); }

.mono { font-family: var(--mono); font-size: var(--fs-xs); letter-spacing: 0; font-variant-numeric: tabular-nums; }

.skip { position: absolute; left: -999px; }
.skip:focus { left: var(--margin); top: 8px; background: var(--ink); color: var(--paper); padding: 6px 10px; z-index: 10; }

/* ---------- 12-Spalten-Raster ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--gutter);
  padding-inline: var(--margin);
}

/* Linke Label-Spalte + rechte Inhaltsspalte – das zentrale Editorial-Muster */
.label, .label-col { grid-column: 1 / span 3; }
.body-col          { grid-column: 4 / span 8; }

.label {
  font: 600 var(--fs-s)/1.4 var(--sans);
  color: var(--ink);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 5;
  padding-block: 18px;
  background: var(--paper);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--rule);
  font-size: var(--fs-s);
  align-items: start;
}
.site-name { grid-column: 1 / span 3; font-weight: 600; }
.site-role { grid-column: 4 / span 4; color: var(--muted); line-height: 1.35; }
.site-nav  { grid-column: 8 / span 5; display: flex; gap: 1.25em; justify-content: flex-end; flex-wrap: wrap; }
.site-nav a, .site-name { transition: color .15s; }
.site-nav a:hover, .site-name:hover { color: var(--accent); }

/* ---------- Intro ---------- */
.intro { padding-block: clamp(3rem, 8vw, 6rem) var(--section); row-gap: 2rem; }
.lede {
  grid-column: 4 / span 6;
  font: 400 clamp(1.5rem, 1rem + 1.6vw, 2.5rem)/1.2 var(--serif);
  letter-spacing: 0;
  text-wrap: balance;
}
.portrait { grid-column: 10 / span 3; align-self: stretch; position: relative; min-height: 12rem; }
.portrait img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }
.lede h1 { font: inherit; letter-spacing: inherit; }
.lede > * + * { margin-top: .6em; }
.lede em { font-style: italic; }
.intro-meta { grid-column: 4 / span 6; color: var(--muted); line-height: 1.7; }

/* ---------- Sections ---------- */
.section {
  padding-block: var(--section);
  border-top: 1px solid var(--rule);
  row-gap: 2rem;
}
#arbeiten { border-top: 0; }

/* ---------- Filter ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 1.25rem; }
.filter {
  font-size: var(--fs-xs);
  padding: 4px 10px;
  border: 1px solid var(--rule);
  border-radius: 99px;
  color: var(--muted);
  transition: all .15s;
}
.filter:hover { color: var(--accent); border-color: var(--accent); }
.filter.is-active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* ---------- Arbeiten: Index-Liste ---------- */
.work-list { grid-column: 4 / span 9; }

.work-head, .work a {
  display: grid;
  grid-template-columns: 3rem 4rem minmax(0, 1fr) 11rem 10rem;
  column-gap: var(--gutter);
  align-items: baseline;
}
.work-head { color: var(--ink); padding-bottom: .75rem; border-bottom: 1px solid var(--ink); }

.work a {
  padding-block: 1.05rem;
  border-bottom: 1px solid var(--rule);
  transition: color .15s, background-color .15s, padding .25s;
}
.w-title { font: 400 var(--fs-l)/1.2 var(--serif); }
.w-cat, .w-client { font-size: var(--fs-s); color: var(--muted); }
.w-nr, .w-year { color: var(--muted); }

.work a:hover { color: var(--accent); padding-left: .5rem; }
.work a:hover .w-cat, .work a:hover .w-client, .work a:hover .w-nr, .work a:hover .w-year { color: var(--accent); }
.work.is-hidden { display: none; }

/* Schwebende Vorschau */
.preview {
  position: fixed; left: 0; top: 0;
  width: 280px;
  pointer-events: none;
  opacity: 0;
  transform: translate3d(-9999px, 0, 0);
  transition: opacity .2s;
  z-index: 4;
  background: var(--paper);
  border: 1px solid var(--rule);
}
.preview img, .preview video { display: block; width: 100%; height: auto; }
.preview video, .preview.is-video img { display: none; }
.preview.is-video video { display: block; }
.preview.is-visible { opacity: 1; }
@media (hover: none) { .preview { display: none; } }

/* ---------- Fließtext ---------- */
.prose p + p { margin-top: 1em; }
.prose p { max-width: 62ch; }
.prose .big { font: 400 var(--fs-l)/1.35 var(--serif); max-width: 38ch; margin-bottom: 1.5rem; }
.prose a, .entries a, .pubs a, .sidenote a, figcaption a { border-bottom: 2px solid var(--mint); transition: color .15s, border-color .15s; }
.prose a:hover, .entries a:hover, .pubs a:hover, .sidenote a:hover, figcaption a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- Aufklappbare Zeilen ---------- */
.expand { border-top: 1px solid var(--rule); margin-top: 2rem; }
.expand + .expand { margin-top: 0; }
.expand:last-child { border-bottom: 1px solid var(--rule); }
.expand summary {
  list-style: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  padding-block: .9rem; font-weight: 600;
}
.expand summary::-webkit-details-marker { display: none; }
.expand summary:hover { color: var(--accent); }
.plus { width: 12px; height: 12px; position: relative; }
.plus::before, .plus::after {
  content: ""; position: absolute; background: currentColor;
  left: 0; top: 50%; width: 100%; height: 1px; transition: transform .2s;
}
.plus::after { transform: rotate(90deg); }
.expand[open] .plus::after { transform: rotate(0deg); }

.cv { display: grid; grid-template-columns: 9rem 1fr; gap: .6rem var(--gutter); padding-bottom: 1.25rem; }
.cv dt { color: var(--muted); padding-top: .2em; }

/* ---------- Aktuelles & Publikationen ---------- */
.entries li, .pubs li {
  display: grid;
  column-gap: var(--gutter);
  padding-block: .9rem;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.entries li { grid-template-columns: 7rem 1fr; }
.pubs li    { grid-template-columns: 4rem 7rem 1fr; }
.entries li:first-child, .pubs li:first-child { border-top: 1px solid var(--ink); }
.entries time, .pub-type { color: var(--muted); }

/* ---------- Footer ---------- */
.site-footer {
  padding-block: var(--section) 2rem;
  background: var(--footer-bg);
  color: var(--footer-ink);
  row-gap: 2rem;
}
.site-footer .label, .site-footer .colophon { color: var(--footer-ink); }
.site-footer a:hover { color: var(--mint); }
.mail {
  display: inline-block;
  font: 400 var(--fs-xl)/1.05 var(--serif);
  border-bottom: 2px solid var(--mint);
  transition: color .15s;
  word-break: break-word;
}
.links { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; margin-top: 1.5rem; font-size: var(--fs-s); }
.colophon { grid-column: 1 / -1; margin-top: 4rem; opacity: .7; }

/* =========================================================
   Projektseite (projects/whg.html)
   ========================================================= */
.project-hero { padding-block: clamp(4rem, 10vw, 8rem) 3rem; row-gap: 2rem; }
.back { grid-column: 1 / span 3; color: var(--ink); font-size: var(--fs-s); }
.back:hover { color: var(--accent); }
.project-title {
  grid-column: 4 / span 9;
  font: 600 var(--fs-xl)/1.1 var(--serif);
  text-wrap: balance;
}

.facts {
  grid-column: 4 / span 9;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gutter);
  border-top: 1px solid var(--ink);
  padding-top: 1rem;
}
.badge { grid-column: 1 / span 3; grid-row: 2 / span 2; align-self: end; width: clamp(110px, 12vw, 160px); }
.facts dt { color: var(--ink); font-weight: 600; margin-bottom: .25rem; }
.facts dd { font-size: var(--fs-s); }

.figure-full { grid-column: 1 / -1; margin-block: 2rem; }
.figure-wide { grid-column: 4 / span 9; margin-block: 2rem; }
.figure-full img, .figure-wide img, .figure-full video, .figure-wide video { display: block; width: 100%; background: var(--rule); border: 1px solid var(--rule); }
figcaption { margin-top: .6rem; font-size: var(--fs-s); color: var(--muted); max-width: 62ch; }
figcaption .mono { color: var(--ink); margin-right: .5em; }

.chapter { padding-block: 3rem; row-gap: 1.5rem; }
.chapter .label { padding-top: .35rem; }
.chapter .prose { grid-column: 4 / span 6; }
.chapter--cont { padding-top: 0; }
.chapter .prose h3 { font-size: var(--fs-m); font-weight: 600; margin: 2rem 0 .5rem; }
.chapter .prose h3:first-child { margin-top: 0; }
.partner-logo { display: inline-block; margin-top: 1.5rem; }
.partner-logo img { display: block; width: 160px; height: auto; }
.sidenote { grid-column: 10 / span 3; font-size: var(--fs-s); color: var(--muted); border-left: 3px solid var(--mint); padding-left: 1rem; align-self: start; }

.stat-row {
  grid-column: 4 / span 9;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter);
  border-top: 2px solid var(--mint); border-bottom: 2px solid var(--mint);
  padding-block: 1.5rem;
}
.stat-row strong { display: block; font: 600 var(--fs-xl)/1 var(--serif); }
.stat-row span { font-size: var(--fs-s); color: var(--ink); }

.next-project { border-top: 1px solid var(--ink); padding-block: 3rem; }
.next-project a { grid-column: 4 / span 9; font: 600 var(--fs-l)/1.2 var(--serif); }
.next-project a:hover { color: var(--accent); }

/* Impressum */
.legal { padding-block: var(--section); row-gap: 2rem; }
.legal .prose h3 { font-size: var(--fs-m); font-weight: 600; margin: 2rem 0 .5rem; }
.legal .prose h2 { font-size: var(--fs-l); font-weight: 600; margin: 4rem 0 .5rem; }
.legal .prose ul { list-style: disc; padding-left: 1.25em; margin: .5em 0 1em; max-width: 62ch; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1000px) {
  .work-head, .work a { grid-template-columns: 2.5rem 3.5rem minmax(0, 1fr) 9rem; }
  .w-client, .work-head span:last-child { display: none; }
  .sidenote { grid-column: 4 / span 9; }
  .chapter .prose { grid-column: 4 / span 9; }
}

@media (max-width: 720px) {
  .label, .label-col, .body-col,
  .lede, .intro-meta, .work-list,
  .project-title, .facts, .figure-wide, .stat-row,
  .chapter .prose, .sidenote, .next-project a, .back { grid-column: 1 / -1; }

  .site-name { grid-column: 1 / span 6; }
  .site-role { display: none; }
  .site-nav  { grid-column: 7 / span 6; gap: .75em; }

  .work-head { display: none; }
  .work a { grid-template-columns: 2.5rem minmax(0, 1fr); row-gap: .2rem; }
  .w-year { grid-column: 1; grid-row: 1; }
  .w-nr { display: none; }
  .w-title { grid-column: 2; }
  .w-cat { grid-column: 2; }

  .portrait { grid-column: 1 / span 6; grid-row: 2; min-height: 0; aspect-ratio: 1; max-width: 180px; }
  .facts { grid-template-columns: repeat(2, 1fr); }
  .badge { grid-column: 1 / -1; grid-row: auto; width: 110px; }
  .stat-row { grid-template-columns: 1fr; }
  .pubs li { grid-template-columns: 3.5rem 1fr; }
  .pubs li p { grid-column: 2; }
  .cv { grid-template-columns: 1fr; gap: .1rem; }
  .cv dd { margin-bottom: .6rem; }
}

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