/* PL-200 static labs — stylesheet */

:root {
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --bg-sunk: #eef0f4;
  --fg: #1b1f24;
  --fg-muted: #5c6672;
  --fg-faint: #808a97;
  --line: #dfe3e8;
  --line-soft: #ebeef2;
  --accent: #0f6cbd;
  --accent-fg: #ffffff;
  --accent-soft: #e8f1fb;
  --warn-bg: #fff8e6;
  --warn-line: #e8c96a;
  --code-bg: #f2f4f7;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 4px 12px rgba(16, 24, 40, .05);
  --radius: 10px;
  --maxw: 60rem;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14171b;
    --bg-soft: #1a1e23;
    --bg-sunk: #21262d;
    --fg: #e6e9ed;
    --fg-muted: #a3adb9;
    --fg-faint: #7d8794;
    --line: #2c333b;
    --line-soft: #232a31;
    --accent: #5aa9f0;
    --accent-fg: #0b1015;
    --accent-soft: #17293a;
    --warn-bg: #2a2415;
    --warn-line: #6b5a24;
    --code-bg: #1e242b;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 14px rgba(0, 0, 0, .3);
  }
}

:root[data-theme="dark"] {
  --bg: #14171b;
  --bg-soft: #1a1e23;
  --bg-sunk: #21262d;
  --fg: #e6e9ed;
  --fg-muted: #a3adb9;
  --fg-faint: #7d8794;
  --line: #2c333b;
  --line-soft: #232a31;
  --accent: #5aa9f0;
  --accent-fg: #0b1015;
  --accent-soft: #17293a;
  --warn-bg: #2a2415;
  --warn-line: #6b5a24;
  --code-bg: #1e242b;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 14px rgba(0, 0, 0, .3);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

img { max-width: 100%; height: auto; }

/* ------------------------------------------------------------- top bar */

.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 1rem;
  padding: .7rem 1.25rem;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar .home { font-weight: 600; text-decoration: none; white-space: nowrap; }
.topbar .home:hover { text-decoration: underline; }
.topbar-title {
  color: var(--fg-muted); font-size: .9rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ---------------------------------------------------------------- hero */

.hero {
  padding: 3.5rem 1.5rem 2.5rem;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  text-align: center;
}
.hero .kicker {
  margin: 0 0 .5rem; text-transform: uppercase; letter-spacing: .12em;
  font-size: .72rem; font-weight: 700; color: var(--fg-faint);
}
.hero h1 {
  margin: 0 0 .75rem; font-size: clamp(2.2rem, 6vw, 3.2rem);
  line-height: 1.1; letter-spacing: -.02em;
}
.hero h1 span {
  display: block; margin-top: .4rem;
  font-size: clamp(.95rem, 2.5vw, 1.15rem); font-weight: 500; color: var(--fg-muted);
  letter-spacing: 0;
}
.hero .lede { margin: 0 auto; max-width: 42rem; color: var(--fg-muted); }

#filter {
  margin-top: 1.75rem; width: min(28rem, 100%);
  padding: .7rem 1rem; font-size: 1rem; font-family: inherit;
  color: var(--fg); background: var(--bg);
  border: 1px solid var(--line); border-radius: 999px;
}
#filter:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* -------------------------------------------------------------- layout */

.layout { display: flex; align-items: flex-start; gap: 2rem; }

.content { flex: 1 1 auto; min-width: 0; padding: 2rem 1.5rem 4rem; max-width: var(--maxw); margin: 0 auto; }
.content.wide { max-width: 68rem; }

.lede { color: var(--fg-muted); }

/* ----------------------------------------------------------------- toc */

.toc {
  position: sticky; top: 4rem;
  flex: 0 0 17rem; align-self: flex-start;
  max-height: calc(100vh - 5rem); overflow-y: auto;
  padding: 1.75rem 0 2rem 1.5rem;
  font-size: .875rem;
}
.toc-title {
  margin: 0 0 .6rem; text-transform: uppercase; letter-spacing: .1em;
  font-size: .68rem; font-weight: 700; color: var(--fg-faint);
}
.toc ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc li a {
  display: block; padding: .28rem .75rem; color: var(--fg-muted);
  text-decoration: none; border-left: 2px solid transparent; margin-left: -1px;
}
.toc li a:hover { color: var(--fg); }
.toc li a.active { color: var(--accent); border-left-color: var(--accent); font-weight: 600; }
.toc li.lvl3 a { padding-left: 1.6rem; font-size: .82rem; }

@media (max-width: 60rem) { .toc { display: none; } }

/* ------------------------------------------------------------ lab head */

.lab-head { padding-bottom: 1.5rem; margin-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.lab-head h1 { margin: .2rem 0 .8rem; font-size: clamp(1.75rem, 4vw, 2.35rem); line-height: 1.15; letter-spacing: -.015em; }
.lab-head .lede { margin: .9rem 0 0; }

.chips { display: flex; flex-wrap: wrap; gap: .4rem; }
.chip {
  display: inline-block; padding: .18rem .6rem; border-radius: 999px;
  font-size: .78rem; color: var(--fg-muted);
  background: var(--bg-sunk); border: 1px solid var(--line-soft);
}
.chip-module { color: var(--accent); background: var(--accent-soft); border-color: transparent; font-weight: 600; }

/* --------------------------------------------------------------- prose */

.prose > :first-child { margin-top: 0; }
.prose h2 {
  margin: 2.5rem 0 .9rem; padding-top: .4rem;
  font-size: 1.45rem; line-height: 1.25; letter-spacing: -.01em;
}
.prose h3 { margin: 2rem 0 .7rem; font-size: 1.13rem; }
.prose h4 { margin: 1.6rem 0 .5rem; font-size: 1rem; color: var(--fg-muted); }
.prose p { margin: 0 0 1rem; }
.prose ol, .prose ul { margin: 0 0 1.1rem; padding-left: 1.5rem; }
.prose li { margin-bottom: .45rem; }
.prose li > ol, .prose li > ul { margin-top: .45rem; }
.prose hr { height: 1px; margin: 2.5rem 0; border: 0; background: var(--line); }
.prose strong { font-weight: 650; }

.prose code {
  padding: .12em .38em; border-radius: 5px;
  font: .875em/1.4 ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
  background: var(--code-bg); border: 1px solid var(--line-soft);
}
.prose pre {
  margin: 0 0 1.25rem; padding: .9rem 1.1rem; overflow-x: auto;
  background: var(--code-bg); border: 1px solid var(--line-soft); border-radius: var(--radius);
}
.prose pre code { padding: 0; background: none; border: 0; }

.prose blockquote {
  margin: 0 0 1.25rem; padding: .8rem 1.1rem;
  background: var(--warn-bg); border-left: 3px solid var(--warn-line);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.prose blockquote > :last-child { margin-bottom: 0; }

.prose table {
  width: 100%; margin: 0 0 1.5rem; border-collapse: collapse; font-size: .93rem;
}
.prose th, .prose td { padding: .55rem .75rem; text-align: left; border: 1px solid var(--line); vertical-align: top; }
.prose thead th { background: var(--bg-sunk); font-weight: 650; }

/* Tabellen dürfen scrollen, die Seite nicht */
.table-wrap { overflow-x: auto; margin-bottom: 1.5rem; }
.table-wrap table { margin-bottom: 0; }

.prose a.shot { display: block; margin: 1.25rem 0; }
.prose a.shot img {
  display: block; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); background: var(--bg-soft);
}
.prose a.shot:hover img { border-color: var(--accent); }

/* --------------------------------------------------------------- pager */

.pager {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line);
}
.pager a {
  display: block; padding: .85rem 1.1rem; border: 1px solid var(--line);
  border-radius: var(--radius); text-decoration: none; color: var(--fg);
  font-weight: 600; line-height: 1.35;
}
.pager a:hover { border-color: var(--accent); background: var(--bg-soft); }
.pager a span {
  display: block; margin-bottom: .2rem; font-size: .72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .1em; color: var(--fg-faint);
}
.pager .next { grid-column: 2; text-align: right; }

/* --------------------------------------------------------------- cards */

.group { margin: 3rem 0; }
.group > h2 {
  margin: 0 0 1.1rem; padding-bottom: .5rem; border-bottom: 1px solid var(--line);
  font-size: 1.05rem; letter-spacing: .01em; color: var(--fg-muted); font-weight: 650;
}
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: 1rem; list-style: none; margin: 0; padding: 0; }
.card > a {
  display: flex; flex-direction: column; gap: .5rem; height: 100%;
  padding: 1.1rem 1.2rem; text-decoration: none; color: inherit;
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .12s, transform .12s, box-shadow .12s;
}
.card > a:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); }
.card h3 { margin: 0; font-size: 1rem; line-height: 1.35; color: var(--accent); }
.card p {
  margin: 0; font-size: .875rem; color: var(--fg-muted);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.card .chips { margin-top: auto; padding-top: .35rem; }

.noresult { text-align: center; color: var(--fg-muted); padding: 2rem 0; }

/* --------------------------------------------------------------- files */

.files { width: 100%; border-collapse: collapse; font-size: .9rem; }
.files th, .files td { padding: .5rem .75rem; border-bottom: 1px solid var(--line-soft); text-align: left; }
.files thead th { color: var(--fg-faint); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; border-bottom-color: var(--line); }
.files .num { text-align: right; white-space: nowrap; color: var(--fg-muted); font-variant-numeric: tabular-nums; }
.files tbody tr:hover { background: var(--bg-soft); }

/* -------------------------------------------------------------- footer */

.foot {
  padding: 2rem 1.5rem 3rem; border-top: 1px solid var(--line);
  background: var(--bg-soft); color: var(--fg-faint); font-size: .82rem; text-align: center;
}
.foot p { max-width: 46rem; margin: 0 auto; }

@media print {
  .topbar, .toc, .pager, .foot, #filter { display: none !important; }
  .content { max-width: none; padding: 0; }
  .prose a.shot img { box-shadow: none; }
}