@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;600;700&family=Inter:wght@400;500;600&display=swap");

:root {
  color-scheme: dark;
  --bg: #0f172a;
  --bg-alt: #1e293b;
  --fg: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-alt: #0ea5e9;
  --border: rgba(148, 163, 184, 0.2);
  --radius: 16px;
  --transition: 180ms ease;
  --heading-font: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --body-font: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--body-font);
}

header, footer {
  padding: clamp(1rem, 3vw, 2rem);
}

main {
  flex: 1;
  width: min(1200px, 95vw);
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 2.5rem) 0 clamp(3rem, 6vw, 4rem);
}

.site-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 3vw, 1.6rem);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  text-align: center;
}

.site-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(0.75rem, 2.5vw, 1.25rem);
  text-decoration: none;
  color: inherit;
}

.site-icon {
  width: clamp(60px, 10vw, 92px);
  aspect-ratio: 1 / 1;
  border-radius: 24px;
  border: 2px solid rgba(148, 163, 184, 0.25);
  background: rgba(15, 23, 42, 0.55);
  padding: clamp(0.5rem, 2vw, 0.9rem);
  display: grid;
  place-items: center;
  box-shadow: 0 14px 24px -16px rgba(56, 189, 248, 0.8);
}

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

.site-title-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: center;
  text-align: center;
}

.site-title {
  font-family: var(--heading-font);
  font-size: clamp(2.2rem, 4.8vw, 3.4rem);
  margin: 0;
  letter-spacing: -0.5px;
}

.site-tagline {
  color: var(--muted);
  margin: 0;
  font-size: clamp(1rem, 2.3vw, 1.2rem);
}

.subtitle {
  color: var(--muted);
  margin: 0.5rem 0 0;
  font-size: 1.05rem;
}

.grid {
  display: grid;
  gap: clamp(1rem, 2vw, 1.5rem);
}

.grid--topics {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.grid--posts {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.08), rgba(14, 165, 233, 0.05));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2rem);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: transform var(--transition), border var(--transition), box-shadow var(--transition);
}

.card.card--topic,
.card.card--post {
  padding: 0;
  overflow: hidden;
}

.card__image,
.card__thumb {
  position: relative;
  width: 100%;
  border-radius: calc(var(--radius) - 4px) calc(var(--radius) - 4px) 0 0;
  overflow: hidden;
}

.card__image img,
.card__thumb img {
  width: 100%;
  height: clamp(160px, 20vw, 220px);
  object-fit: cover;
  display: block;
}

.card__body {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: clamp(1.5rem, 3vw, 2rem);
}

.card:hover,
.card:focus {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 12px 30px -18px rgba(56, 189, 248, 0.7);
}

.card__title {
  font-size: clamp(1.3rem, 2.5vw, 1.6rem);
  margin: 0;
  font-family: var(--heading-font);
}

.card__meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.card__excerpt {
  color: var(--muted);
  line-height: 1.6;
  flex: 1;
}

.topic-hero {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.post-hero {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.14), rgba(14, 165, 233, 0.08));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: clamp(2rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.post-hero__media {
  border-radius: calc(var(--radius) - 6px);
  overflow: hidden;
  box-shadow: 0 18px 28px -24px rgba(14, 165, 233, 0.7);
}

.post-hero__media img {
  width: 100%;
  height: auto;
  display: block;
}

.post-hero h1 {
  margin-top: 0;
  font-size: clamp(2rem, 5vw, 3rem);
  font-family: var(--heading-font);
}

.post-meta {
  color: var(--muted);
  font-size: 0.95rem;
}

article {
  background-color: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  line-height: 1.8;
  font-size: 1.05rem;
}

article img {
  max-width: 100%;
  border-radius: calc(var(--radius) / 2);
  display: block;
  margin: 1.5rem auto;
}

.cta {
  margin-top: 2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent);
}

footer {
  border-top: 1px solid var(--border);
  text-align: center;
  background: rgba(15, 23, 42, 0.7);
  font-size: 0.95rem;
}

.impressum {
  max-width: min(1080px, 92vw);
  margin: 0 auto;
  color: var(--muted);
}

.impressum a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

.impressum a:hover,
.impressum a:focus {
  color: var(--accent-alt);
}

.comments {
  margin-top: clamp(3rem, 6vw, 4.5rem);
  padding: clamp(1.75rem, 3.5vw, 3rem);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.12), rgba(14, 165, 233, 0.06));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: clamp(1.25rem, 3vw, 1.75rem);
}

.comments h2 {
  margin: 0;
  font-family: var(--heading-font);
  font-size: clamp(1.6rem, 3vw, 2rem);
}

.comments #cusdis_thread {
  width: 100%;
}

.comments iframe {
  width: 100% !important;
  min-height: 440px !important;
  border: 1px solid var(--border) !important;
  border-radius: calc(var(--radius) - 6px) !important;
  background: var(--bg-alt) !important;
}

@media (max-width: 720px) {
  .site-header {
    flex-direction: column;
    text-align: center;
  }

  .site-brand {
    flex-direction: column;
  }

  .card__image img,
  .card__thumb img {
    height: 200px;
  }
}