/* ============================================================
   Design tokens – geteilt mit blog.it-teaching.de
   ============================================================ */
:root {
  --bg:        #f8f7f4;
  --surface:   #ffffff;
  --surface-2: #f0efe9;
  --ink:       #18181b;
  --ink-2:     #3f3f46;
  --muted:     #71717a;
  --accent:    #2c4740;
  --accent-bg: rgba(44, 71, 64, 0.08);
  --border:    #e4e4e7;
  --border-2:  #d4d4d8;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 10px rgba(0,0,0,0.07);

  /* Kein border-radius – flaches, klares Design */
  --radius: 0px;

  --site-w: min(1080px, calc(100% - 2rem));
  --font:   "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

/* ============================================================
   Reset & Basis
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 16px; }

body {
  margin: 0;
  min-height: 100vh;
  font-size: 1rem;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

/* ============================================================
   Site-Header – flache Leiste, kein Rahmen
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: rgba(248, 247, 244, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  width: var(--site-w);
  margin: 0 auto;
  height: 3.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-header__logo {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.site-header__logo:hover { color: var(--accent); }

.site-header__nav {
  display: flex;
  align-items: center;
  gap: 0.1rem;
}

.site-header__nav a {
  display: inline-flex;
  align-items: center;
  height: 2rem;
  padding: 0 0.65rem;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 140ms;
}

.site-header__nav a:hover { color: var(--ink); background: var(--surface-2); }

/* ============================================================
   App-Container
   ============================================================ */
#app { position: relative; z-index: 1; }

/* Spectre-Container auf site-width beschränken */
.container.grid-xl.overview-shell {
  width: var(--site-w) !important;
  max-width: none !important;
  margin-left: auto !important;
  margin-right: auto !important;
  padding: 2.5rem 0 5rem !important;
}

/* ============================================================
   Overview-Intro (Hero + Author)
   ============================================================ */
.overview-intro {
  padding-bottom: 0.5rem;
}

/* Hero-Card komplett rahmenlos */
.header-card,
.overview-intro .header-card {
  border: none !important;
  background: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  border-radius: 0 !important;
  width: 100%;
}

.card-hero {
  padding: 2rem 0 1.5rem;
}

.card-hero h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(2.8rem, 5.5vw, 4.8rem);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.07em;
  color: var(--ink);
}

/* Author-Strip – kompakter Streifen unter Hero */
.author-card,
.overview-intro .author-card {
  border: none !important;
  border-top: 1px solid var(--border) !important;
  background: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  border-radius: 0 !important;
  width: 100%;
}

.overview-intro .author-card .card-body {
  padding: 1rem 0 0.25rem !important;
}

.author-card .tile {
  display: flex !important;
  align-items: center !important;
  gap: 0.8rem !important;
}

.author-avatar {
  width: 2.75rem !important;
  height: 2.75rem !important;
  border-radius: 0 !important;
  overflow: hidden;
  flex-shrink: 0;
  background: transparent;
  border: 1px solid var(--border) !important;
  box-shadow: none !important;
}

.author-avatar img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-content {
  display: flex !important;
  flex-wrap: wrap !important;
  align-items: baseline !important;
  gap: 0.15rem 0.6rem !important;
}

/* Chip "Über mich" und Copy-Block im Author-Strip ausblenden */
.author-card .section-chip { display: none !important; }
.author-card .copy-block   { display: none !important; }

.author-name {
  margin: 0 !important;
  font-size: 0.875rem !important;
  font-weight: 700 !important;
  letter-spacing: -0.01em !important;
  color: var(--ink) !important;
}

.author-role {
  margin: 0 !important;
  font-size: 0.8rem !important;
  color: var(--muted) !important;
  font-weight: 400 !important;
  line-height: 1.5 !important;
}

/* ============================================================
   Badges / Chips
   ============================================================ */
.section-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  background: var(--accent-bg);
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

/* ============================================================
   Copy-Blöcke / Fließtext
   ============================================================ */
.copy-block {
  color: var(--muted);
  line-height: 1.72;
}

.hero-copy {
  max-width: 56ch;
  margin-top: 0.75rem;
  font-size: 1.02rem;
}

.copy-block > :first-child { margin-top: 0; }
.copy-block > :last-child  { margin-bottom: 0; }
.copy-block > * + *        { margin-top: 0.6rem; }

/* ============================================================
   Action-Links (Buttons / Ghost-Links)
   ============================================================ */
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.1rem;
}

.action-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  min-height: 2.2rem;
  padding: 0.35rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
  background: var(--surface);
  transition: background 130ms, border-color 130ms;
}

.action-link:hover,
.action-link:focus-visible {
  background: var(--surface-2);
  border-color: var(--border-2);
}

.action-link.btn-primary {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.action-link.btn-primary:hover {
  background: var(--ink-2);
  border-color: var(--ink-2);
}

/* ============================================================
   Projekt-Grid – Newspaper-Grid mit 1px-Trennlinien
   ============================================================ */
.project-grid.columns {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 0 !important;
  padding: 0 !important;
  background: var(--border);  /* Lücke zeigt Rahmenfarbe → Trennlinien-Effekt */
  border: 1px solid var(--border);
  align-items: stretch;
  margin-top: 1.25rem !important;
}

.project-grid > .column {
  width: auto !important;
  max-width: none !important;
  flex: none !important;
  padding: 0 !important;
  background: var(--surface);
}

/* Sektions-Header (col-12) immer über volle Breite */
.project-section-column {
  grid-column: 1 / -1 !important;
  padding: 0 !important;
  background: var(--surface-2) !important;
}

.project-section-block {
  padding: 0.85rem 1rem 0.7rem;
}

.project-section-kicker { display: none; }

.project-section-header h2 {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.project-section-header p {
  display: none;
}

/* ============================================================
   Projekt-Karten
   ============================================================ */
.spectre-card {
  background: var(--surface) !important;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
}

.project-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: background 160ms;
}

.project-card:hover,
.project-card:focus-visible {
  background: var(--surface-2) !important;
}

.project-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* Farbige Linie oben an der Karte */
.project-card .card-image { padding: 0; }

.project-media {
  height: 4px;
  background: var(--project-color, var(--accent));
}

.project-media::before,
.project-media::after { display: none; }

.moodle       .project-media { --project-color: #355c6b; }
.filius        .project-media { --project-color: #2f5f79; }
.sql           .project-media { --project-color: #3f4d82; }
.codequestion  .project-media { --project-color: #745241; }
.python-course .project-media { --project-color: #2e5672; }
.blog          .project-media { --project-color: #49596f; }
.schafferei    .project-media { --project-color: #4d6951; }
.spielerei     .project-media { --project-color: #5d4f43; }
.miniworlds    .project-media { --project-color: #38468a; }

.project-card .card-header,
.project-card .card-body,
.project-card .card-footer {
  padding-left: 1rem;
  padding-right: 1rem;
}

.project-card .card-header {
  padding-top: 1rem;
  padding-bottom: 0.25rem;
}

.project-meta-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.project-category {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.5rem;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--accent-bg);
  color: var(--accent);
}

.project-external-hint { display: none; }

.project-card .card-title {
  color: var(--ink);
  font-size: 0.975rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.project-card .card-subtitle {
  font-size: 0.775rem;
  color: var(--muted);
  line-height: 1.4;
  margin-top: 0.1rem;
}

.project-card .card-body {
  padding-top: 0.45rem;
  padding-bottom: 0.75rem;
  font-size: 0.855rem;
  color: var(--muted);
  line-height: 1.62;
  flex: 1;
}

.project-card .card-footer {
  padding-top: 0.5rem;
  padding-bottom: 0.85rem;
  display: flex;
  justify-content: flex-end;
  border-top: 1px solid var(--border);
}

.project-cta {
  font-size: 0.775rem;
  font-weight: 700;
  color: var(--accent);
}

/* ============================================================
   Status / Loading
   ============================================================ */
.status-card {
  border: none !important;
  background: none !important;
  box-shadow: none !important;
  padding: 3rem 0;
}

.status-card h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -0.04em;
}

/* ============================================================
   Footer
   ============================================================ */
.footer-card {
  margin-top: 2.5rem !important;
  border-top: 1px solid var(--border) !important;
  border-right: none !important;
  border-bottom: none !important;
  border-left: none !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
}

.footer-card .card-body {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  flex-wrap: wrap !important;
  gap: 0.75rem !important;
  padding: 1.1rem 0 !important;
}

.footer-main { display: contents !important; }

.footer-copy { display: grid; gap: 0.2rem; }
.footer-eyebrow { display: none; }

.footer-title {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.footer-copy p,
.footer-copy-text {
  margin: 0 !important;
  font-size: 0.825rem !important;
  color: var(--muted) !important;
  max-width: 44ch;
}

.footer-nav { flex-shrink: 0; }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.footer-links .action-link {
  min-height: 1.8rem;
  padding: 0.2rem 0.55rem;
  font-size: 0.775rem;
  border-color: var(--border);
  background: transparent;
}

.footer-links .action-link:hover {
  background: var(--surface-2);
}

.footer-meta {
  width: 100%;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 960px) {
  .project-grid.columns {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 640px) {
  .project-grid.columns {
    grid-template-columns: 1fr !important;
  }

  .footer-card .card-body {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 0.6rem !important;
  }
}

@media (max-width: 440px) {
  .site-header__nav a:nth-child(n+3) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .project-card,
  .action-link { transition: none; }
}