/* ============================================================
   blog.fleskes.info – Minimal Accessible Theme
   Ziele:
   - Kein JavaScript
   - Optimale Lesbarkeit & Reader-Mode-Kompatibilität
   - WCAG 2.1 AA Kontrast
   - System-Fonts → kein externer Font-Request
   - ~4 KB unkomprimiert
   ============================================================ */

/* --- Design-Tokens ----------------------------------------- */
:root {
  --color-bg:        #fffdf8;   /* leicht warmes Weiß */
  --color-text:      #1a1a1a;   /* fast Schwarz, nicht reines #000 */
  --color-muted:     #595959;   /* Kontrast 7:1 auf --color-bg  */
  --color-link:      #0057b8;   /* Blau, WCAG AA auf Weiß        */
  --color-link-vis:  #5b2d8e;   /* Besuchte Links unterscheidbar */
  --color-border:    #d4d0c8;
  --color-tag-bg:    #eee9da;

  --font-body: Georgia, "Times New Roman", Times, serif;
  --font-mono: "Fira Code", "Cascadia Code", Consolas, "Courier New", monospace;

  --measure: 65ch;              /* optimale Zeilenlänge fürs Lesen */
  --space-s:  0.5rem;
  --space-m:  1rem;
  --space-l:  2rem;
  --space-xl: 4rem;

  --radius: 3px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg:       #16161a;
    --color-text:     #e8e4d9;
    --color-muted:    #a8a39a;
    --color-link:     #6ab0f5;
    --color-link-vis: #c5a3e8;
    --color-border:   #2e2e38;
    --color-tag-bg:   #252530;
  }
}

/* --- Reset (minimal) --------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 100%;                /* respektiert Browser-Einstellung */
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.05vw + 0.8rem, 1.2rem);
  line-height: 1.7;
  margin: 0;
  padding: 0;
}

/* --- Skip-Link (Accessibility) ----------------------------- */
.skip-link {
  position: absolute;
  top: -999px;
  left: var(--space-m);
  padding: var(--space-s) var(--space-m);
  background: var(--color-link);
  color: #fff;
  border-radius: var(--radius);
  z-index: 100;
  text-decoration: none;
  font-family: system-ui, sans-serif;
  font-size: 0.9rem;
}
.skip-link:focus {
  top: var(--space-m);
}

/* --- Layout-Wrapper ---------------------------------------- */
body > header,
body > main,
body > footer {
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: var(--space-m);
}

body > header {
  padding-block: var(--space-l);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-l);
}

body > footer {
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-xl);
  padding-block: var(--space-l);
  font-size: 0.875rem;
  color: var(--color-muted);
  font-family: system-ui, sans-serif;
}

/* --- Navigation -------------------------------------------- */
nav {
  display: flex;
  align-items: baseline;
  gap: var(--space-l);
  flex-wrap: wrap;
}

nav > a {
  font-size: 1.1rem;
  font-weight: bold;
  text-decoration: none;
  color: var(--color-text);
  font-family: system-ui, sans-serif;
}

nav > a:hover { text-decoration: underline; }

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-m);
  flex-wrap: wrap;
}

nav ul a {
  font-family: system-ui, sans-serif;
  font-size: 0.9rem;
  color: var(--color-muted);
  text-decoration: none;
}

nav ul a:hover { color: var(--color-link); text-decoration: underline; }

/* --- Typografie -------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.25;
  margin-top: var(--space-l);
  margin-bottom: var(--space-s);
  font-weight: 700;
}

h1 { font-size: clamp(1.6rem, 3vw + 1rem, 2.4rem); margin-top: 0; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1rem; font-weight: 600; }

p { margin: 0 0 var(--space-m); }

/* --- Links ------------------------------------------------- */
a {
  color: var(--color-link);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

a:visited { color: var(--color-link-vis); }

a:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
  border-radius: var(--radius);
}

/* --- Artikel-Header ---------------------------------------- */
.post-meta {
  font-family: system-ui, sans-serif;
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: var(--space-l);
}

.post-description {
  font-size: 1.05rem;
  color: var(--color-muted);
  font-style: italic;
  border-left: 3px solid var(--color-border);
  padding-left: var(--space-m);
  margin-bottom: var(--space-l);
}

/* --- Post-Content: Inhalts-Elemente ------------------------ */
blockquote {
  border-left: 3px solid var(--color-border);
  margin: var(--space-l) 0;
  padding: var(--space-s) var(--space-m);
  color: var(--color-muted);
  font-style: italic;
}

blockquote > * { margin: 0; }

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-tag-bg);
  padding: 0.1em 0.35em;
  border-radius: var(--radius);
}

pre {
  background: var(--color-tag-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-m);
  overflow-x: auto;
  margin: var(--space-l) 0;
}

pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-xl) 0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

figure {
  margin: var(--space-l) 0;
}

figcaption {
  font-family: system-ui, sans-serif;
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-top: var(--space-s);
  text-align: center;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
  margin: var(--space-l) 0;
}

th, td {
  text-align: left;
  padding: var(--space-s) var(--space-m);
  border-bottom: 1px solid var(--color-border);
}

th { font-weight: 600; }

/* --- Tags -------------------------------------------------- */
.tag {
  display: inline-block;
  background: var(--color-tag-bg);
  color: var(--color-muted);
  font-family: system-ui, sans-serif;
  font-size: 0.8rem;
  padding: 0.1em 0.5em;
  border-radius: var(--radius);
  text-decoration: none;
}

.tag:hover { color: var(--color-link); }

/* --- Post-Liste (Index) ------------------------------------ */
.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-list li {
  padding: var(--space-m) 0;
  border-bottom: 1px solid var(--color-border);
}

.post-list li:first-child { border-top: 1px solid var(--color-border); }

.post-list .post-title {
  font-family: system-ui, sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  display: block;
  margin-bottom: 0.2rem;
}

.post-list .post-title:hover { color: var(--color-link); }

.post-list .post-excerpt {
  font-size: 0.95rem;
  color: var(--color-muted);
  margin: 0.25rem 0 0;
}

/* --- Post-Footer ------------------------------------------- */
.post-footer {
  margin-top: var(--space-xl);
  padding-top: var(--space-m);
  border-top: 1px solid var(--color-border);
  font-family: system-ui, sans-serif;
  font-size: 0.9rem;
}