/* danielknuchel.ch – nordisch-minimalistisch. Eine Schriftfamilie, eine Akzentfarbe, Hairlines statt Kästen. */

:root {
  --bg: #f7f6f3;
  --bg-2: #efeeea;
  --text: #1b1b1a;
  --text-2: #4a4a47;
  --muted: #7d7c77;
  --line: #e1dfda;
  --accent: #6e4f33;        /* Braun dunkel: Links, Navigation, Hover */
  --accent-2: #8a6a4a;      /* Braun: Zwischentitel, Jahre, Labels */
  --tint: #f1ece4;          /* warme Fläche für Hintergründe */
  --sans: "IBM Plex Sans", "Helvetica Neue", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --measure: 44rem;
  --wide: 64rem;
  --space: 1.5rem;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171716;
    --bg-2: #1f1f1e;
    --text: #e9e7e2;
    --text-2: #bdbbb4;
    --muted: #8c8a84;
    --line: #2b2b29;
    --accent: #d6b48f;
    --accent-2: #c7a47e;
    --tint: #1f1d1a;
  }
}

* { box-sizing: border-box; }
html { font-size: 17px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: 0.002em;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.2em; transition: text-decoration-color .15s; }
a:hover { text-decoration-color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-weight: 500; line-height: 1.15; letter-spacing: -0.015em; margin: 0; }
h1 { font-size: 2.4rem; margin-bottom: 1.6rem; }
h2 { font-size: 1.05rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-2); margin: 3.2rem 0 1rem; padding-top: 1rem; border-top: 1px solid var(--line); }
h3 { font-size: 1.05rem; margin: 2rem 0 0.6rem; }
p, ul, ol { margin: 0 0 1.1rem; }
.wrap { max-width: var(--wide); margin: 0 auto; padding: 0 var(--space); }
.muted { color: var(--muted); }
.small { font-size: 0.88rem; }
.lead { font-size: 1.25rem; line-height: 1.5; color: var(--text); max-width: var(--measure); margin-bottom: 1.6rem; }
.eyebrow { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--accent); margin: 0 0 1rem; }
.badge { display: inline-block; font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-2); border: 1px solid var(--accent-2); border-radius: 2px; padding: 0 0.4em; margin-left: 0.4em; vertical-align: middle; line-height: 1.5; }
.skip { position: absolute; left: -999px; top: 0; background: var(--text); color: var(--bg); padding: 0.5rem 1rem; }
.skip:focus { left: 0.5rem; top: 0.5rem; z-index: 10; }

/* Header */
.site-header { padding: 2rem 0 0; }
.header-row { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0.6rem 2rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--line); }
.brand { font-weight: 500; letter-spacing: -0.01em; text-decoration: none; }
nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.3rem 1.4rem; font-size: 0.92rem; }
nav a { color: var(--text-2); text-decoration: none; }
nav a:hover { color: var(--accent); }
nav a[aria-current="page"] { color: var(--accent); border-bottom: 1px solid var(--accent); padding-bottom: 0.1rem; }
nav .lang a { color: var(--muted); }

/* Main */
main { padding: 4rem var(--space) 5rem; }
.prose { max-width: var(--measure); }
.prose ul, .prose ol { padding-left: 1.2rem; }
.prose .pubs, .prose .talks, .prose .courses, .prose .readings { padding-left: 0; }
.prose li { margin-bottom: 0.45rem; }
.prose li::marker { color: var(--muted); }
.prose strong { font-weight: 500; }
.prose table { border-collapse: collapse; width: 100%; font-size: 0.95rem; margin: 0 0 1.5rem; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 0.55rem 1rem 0.55rem 0; border-bottom: 1px solid var(--line); }
.prose th { font-weight: 500; color: var(--accent-2); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; }
.prose td:first-child { color: var(--muted); white-space: nowrap; width: 9rem; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

/* Home */
.hero { display: grid; grid-template-columns: 300px 1fr; gap: 2rem 3.5rem; align-items: start; margin-bottom: 4rem; }
.hero-text { order: 2; }
.portrait { order: 1; width: 300px; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 14px; filter: saturate(0.92); margin-top: 0.3rem; }
.hero h1 { font-size: 2.6rem; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 1.1rem; }
.hero .lead { font-size: 1.12rem; line-height: 1.55; margin-bottom: 1rem; }
.hero .lead-2 { font-size: 1rem; color: var(--text-2); }
.hero .links { display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; font-size: 0.9rem; margin: 0; }
.hero .links a { color: var(--accent); text-decoration: none; }
.hero .links a:hover { color: var(--text); }
.pillars-wrap { margin-bottom: 4rem; }
.section-label { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-2); margin: 0 0 0.2rem; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 2.5rem; border-top: 1px solid var(--line); }
.pillar { display: block; padding: 1.3rem 0 1.2rem; text-decoration: none; }
.pillar h2 { font-size: 1.1rem; font-weight: 500; text-transform: none; letter-spacing: -0.01em; color: var(--text); margin: 0 0 0.4rem; padding: 0; border: 0; }
.pillar p { margin: 0; font-size: 0.93rem; color: var(--text-2); }
.pillar:hover h2 { color: var(--accent); }
.home-body { max-width: var(--measure); }
.home-body h2:first-child { margin-top: 0; }

/* Aktuell auf der Startseite */
.news-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 0 3rem; margin-bottom: 3.5rem; }
.news { list-style: none; padding: 0; margin: 0; }
.news li { display: grid; grid-template-columns: 7.5rem 1fr; gap: 0.8rem; padding: 0.55rem 0; border-top: 1px solid var(--line); font-size: 0.93rem; }
.news .date { color: var(--muted); font-size: 0.85rem; padding-top: 0.1rem; }
.news .title { font-weight: 500; }
@media (max-width: 720px) { .news-wrap { grid-template-columns: 1fr; } .news li { grid-template-columns: 1fr; gap: 0.1rem; } }

/* Publications */
.pubs { list-style: none; padding: 0; margin: 0 0 1rem; max-width: var(--measure); }
.pubs li { display: grid; grid-template-columns: 3.2rem 1fr; gap: 1.1rem; padding: 0.9rem 0; border-bottom: 1px solid var(--line); font-size: 0.95rem; }
.pubs li.no-cover { grid-template-columns: 1fr; }
.pubs .cover { width: 3.2rem; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 1px; box-shadow: 0 0 0 1px var(--line); background: var(--bg-2); }
.pubs .title { font-weight: 500; }
.pubs .doi { font-size: 0.8rem; color: var(--accent); text-decoration: none; margin-left: 0.3em; white-space: nowrap; }
.pubs .doi:hover { color: var(--accent); }
.pubs .doi::before { content: "↗ "; }

/* Talks and courses */
.talks, .courses { list-style: none; padding: 0; margin: 0; max-width: var(--measure); }
.talks li, .courses li { display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; padding: 0.6rem 0; border-bottom: 1px solid var(--line); font-size: 0.95rem; }
.talks li.year { display: block; border: 0; padding: 1.6rem 0 0.2rem; font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-2); }
.talks .date, .courses .sem { color: var(--muted); font-size: 0.85rem; padding-top: 0.15rem; white-space: nowrap; }
.talks .title { font-weight: 500; }
.courses li { grid-template-columns: 6rem 1fr; }

details.course summary { cursor: pointer; list-style: none; position: relative; padding-right: 1.4rem; }
details.course summary::-webkit-details-marker { display: none; }
details.course summary::after { content: "↓"; position: absolute; right: 0; top: 0; color: var(--muted); font-size: 0.85rem; transition: transform .15s; }
details.course[open] summary::after { transform: rotate(180deg); }
details.course summary:hover { color: var(--accent); }
.course-body { margin: 0.8rem 0 0.4rem; padding-left: 1rem; border-left: 2px solid var(--accent-2); color: var(--text-2); font-size: 0.93rem; }
.course-body p { margin-bottom: 0.7rem; }
.readings-label { font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent-2); margin: 0.8rem 0 0.3rem; }
.readings { list-style: none; padding: 0; margin: 0; }
.readings li { padding: 0.25rem 0; border: 0; display: block; }

/* Footer */
.site-footer { padding: 2rem 0 3rem; color: var(--muted); font-size: 0.85rem; background: var(--tint); }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.4rem 1.5rem; }
.footer-row p { margin: 0; }
.footer-row a { color: var(--muted); text-decoration: none; }
.footer-row a:hover { color: var(--text); }

@media (max-width: 720px) {
  html { font-size: 16px; }
  :root { --space: 1.1rem; }
  main { padding-top: 2.5rem; }
  h1 { font-size: 2rem; }
  .hero { grid-template-columns: 1fr; gap: 1.6rem; }
  .portrait { order: 0; width: 180px; }
  .hero-text { order: 2; }
  .hero h1 { font-size: 2.4rem; }
  .hero .lead { font-size: 1.15rem; }
  .pillars { grid-template-columns: 1fr; }
  .portrait, .hero-text { order: 0; }
  .talks li, .courses li { grid-template-columns: 1fr; gap: 0.1rem; }
  .prose td:first-child { white-space: normal; width: auto; }
}
@media print {
  .site-header nav, .site-footer p:last-child, .skip { display: none; }
  body { background: #fff; color: #000; }
  a { text-decoration: none; }
}