/*
  probenjournal.ch — Design-System
  Eigenständige visuelle Identität, keine SaaS-Template-Optik.

  Farbkonzept (siehe CLAUDE.md — Farbschema war nicht final, dies ist der
  vorgeschlagene, konsistent durchgezogene Vorschlag):
  - Tiefes Moosgrün als Markenfarbe: seriös, "Umwelt", kein Standard-Blau
  - Gebranntes Terrakotta als Akzent: erinnert an Erde/Aushub/Baustelle
  - Warmes Off-White statt reinem Weiss: wirkt wie Papier eines Journals
  - Steingrau für Sekundärtext

  Typografie: Serife für Überschriften (Charakter, "Journal"-Anmutung),
  System-Sans für Fliesstext (Lesbarkeit, Ladezeit). Keine Web-Font-Requests
  — Systemfonts halten die Seite schnell und schwer JS-frei.
*/

:root {
  --color-bg: #f7f5f0;
  --color-bg-alt: #eeebe2;
  --color-surface: #ffffff;
  --color-ink: #1f2620;
  --color-ink-soft: #4b5249;
  --color-brand: #2e4034;
  --color-brand-dark: #1c2921;
  --color-accent: #c4622d;
  --color-accent-dark: #a34e21;
  --color-line: #ddd7c8;

  --font-head: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --maxw: 72rem;
  --radius: 4px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
}

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

a { color: var(--color-brand); }
a:hover { color: var(--color-accent-dark); }

.container {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* Skip-Link für Barrierefreiheit */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-brand);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.9rem;
  gap: 1rem;
  flex-wrap: wrap;
}
.brand {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-brand-dark);
  text-decoration: none;
  letter-spacing: 0.01em;
}
.brand span { color: var(--color-accent); }

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.main-nav a {
  text-decoration: none;
  color: var(--color-ink);
  font-size: 0.95rem;
}
.main-nav a:hover { color: var(--color-accent-dark); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  cursor: pointer;
}
.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-brand-dark);
  border-radius: 1px;
}
.nav-toggle-bars {
  position: relative;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  transition: transform 0.15s ease, top 0.15s ease, opacity 0.15s ease;
}
.nav-toggle-bars::before { top: -6px; }
.nav-toggle-bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { top: 0; transform: rotate(-45deg); }

.btn {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  padding: 0.65rem 1.3rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--color-accent-dark);
}
.btn:hover { background: var(--color-accent-dark); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--color-brand-dark);
  border: 1px solid var(--color-brand-dark);
}
.btn-ghost:hover { background: var(--color-brand-dark); color: #fff; }

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  border-bottom: 1px solid var(--color-line);
}
.hero .container {
  padding-block: 3.5rem 3rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}
.hero-media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--color-line);
  box-shadow: 0 16px 36px -18px rgba(28, 41, 33, 0.4);
}
@media (max-width: 56rem) {
  .hero-grid { grid-template-columns: 1fr; }
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--color-accent-dark);
  font-weight: 700;
  margin: 0 0 0.75rem;
}
.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  color: var(--color-brand-dark);
  max-width: 22ch;
}
.hero .lead {
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  max-width: 48ch;
  margin: 0 0 1.75rem;
}
.hero-actions { display: flex; gap: 0.9rem; flex-wrap: wrap; }

/* Sections */
section { padding-block: 3rem; }
section.alt { background: var(--color-bg-alt); border-block: 1px solid var(--color-line); }

h2 {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-brand-dark);
  margin-top: 0;
}
h3 {
  font-family: var(--font-head);
  font-size: 1.2rem;
  color: var(--color-brand-dark);
  margin-bottom: 0.4rem;
}
.section-intro {
  max-width: 60ch;
  color: var(--color-ink-soft);
  margin-bottom: 2rem;
}
.section-highlight {
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: var(--color-brand-dark);
  margin: -1.25rem 0 1rem;
}
.section-highlight + .pill-list {
  margin-bottom: 2rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.card p { color: var(--color-ink-soft); margin-bottom: 0; }

.card-with-media { overflow: hidden; }
.card-media {
  margin: -1.5rem -1.5rem 1rem;
  border-bottom: 1px solid var(--color-line);
}
.card-media img { width: 100%; height: auto; display: block; }

.pill-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.pill-list li {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-size: 0.9rem;
  color: var(--color-brand-dark);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  font-size: 0.95rem;
}
caption { text-align: left; color: var(--color-ink-soft); margin-bottom: 0.5rem; }
th, td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--color-line);
  vertical-align: top;
}
th { color: var(--color-brand-dark); font-family: var(--font-head); }
th[scope="row"] { white-space: nowrap; }
.table-wrap { overflow-x: auto; }

.callout {
  background: var(--color-surface);
  border-left: 4px solid var(--color-accent);
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
}
.callout p:last-child { margin-bottom: 0; }

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin-bottom: 1rem;
}
.breadcrumb a { color: var(--color-ink-soft); }
.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0;
  margin: 0;
}
.breadcrumb li + li::before { content: "›"; margin-right: 0.35rem; color: var(--color-line); }

.article-body h2 { margin-top: 2rem; }
.article-body h3 { margin-top: 1.5rem; }

.article-media {
  margin: 1.5rem 0;
}
.article-media img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}
.article-media figcaption {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin-top: 0.5rem;
}

/* CTA-Band */
.cta-band {
  background: var(--color-brand-dark);
  color: #f3f1ea;
}
.cta-band h2 { color: #fff; }
.cta-band .lead { color: #d9dcd6; }

/* Bild-Lightbox */
.img-zoom {
  all: unset;
  display: block;
  cursor: zoom-in;
  position: relative;
}
.img-zoom img { display: block; }
.img-zoom::after {
  content: "Vergrössern";
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  background: rgba(28, 41, 33, 0.85);
  color: #f3f1ea;
  font-size: 0.75rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.img-zoom:hover::after,
.img-zoom:focus-visible::after { opacity: 1; }
.img-zoom:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 17, 13, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  z-index: 100;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.lightbox-overlay.is-visible { opacity: 1; }
.lightbox-overlay img {
  max-width: 100%;
  max-height: 100%;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.25rem 0.6rem;
}
.lightbox-close:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
body.lightbox-open { overflow: hidden; }
@media (max-width: 640px) {
  .img-zoom::after { display: none; }
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-line);
  background: var(--color-bg-alt);
  padding-block: 2rem;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.site-footer nav ul {
  list-style: none;
  display: flex;
  gap: 1.2rem;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}
.site-footer a { color: var(--color-ink-soft); }

@media (max-width: 40rem) {
  .nav-toggle { display: inline-flex; }
  .main-nav {
    display: none;
    flex-basis: 100%;
    order: 3;
  }
  .main-nav.is-open { display: block; }
  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding-block: 0.5rem 0.25rem;
  }
  .main-nav li { border-top: 1px solid var(--color-line); }
  .main-nav a { display: block; padding: 0.85rem 0.1rem; }
  .hero .container { padding-block: 2.5rem 2rem; }
  section { padding-block: 2.25rem; }
}