/* =========================
   Design Tokens (CSS-Variablen)
   ========================= */
:root {
  --bg: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --muted-strong: #555555;

  --brand: #0ea5e9;          /* Blau für Akzente/Links */
  --accent: #f1f5f9;         /* helle Flächen (Tip/Box) */
  --border: #e5e7eb;

  --cta: #ffc107;            /* Spanisch-Gelb */
  --cta-hover: #e0a800;
  --cta-contrast: #ffffff;   /* Textfarbe auf CTA in Light */
}

/* Dark Mode: Variablen umschalten */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --text: #eaeaea;
    --muted: #9aa3af;
    --muted-strong: #888888;

    --accent: #151a1f;
    --border: #2a2f36;

    --cta: #ffc107;
    --cta-hover: #e0a800;
    --cta-contrast: #000000; /* bessere Lesbarkeit auf Gelb im Dark */
  }
}

/* =========================
   Grundlegendes Layout & Typografie
   ========================= */
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  text-align: left;
}

h1, h2, h3, p, ul, ol, li, small, figcaption,
.card, .pair, .hint {
  text-align: left;
}

body { line-height: 1.6; }

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px;
}

.wrap {
  max-width: 900px;
  margin: 48px auto;
  padding: 0 16px;
}

h1 {
  line-height: 1.25;
  margin: 1.2em 0 0.4em;
  font-size: clamp(1.6rem, 2.2vw, 2.2rem);
  color: var(--text);
}

h2 {
  line-height: 1.25;
  margin: 1.2em 0 0.4em;
  font-size: clamp(1.2rem, 1.6vw, 1.6rem);
  color: var(--text);
}

h3 {
  line-height: 1.25;
  margin: 1.2em 0 0.4em;
  font-size: 1.05rem;
  color: var(--text);
}

p { margin: 10px 0; }

/* Abschnittsabstand etwas luftiger */
section + section { margin-top: 18px; }

/* =========================
   Listen
   ========================= */
ul, ol {
  margin: 0 0 1em 1.2em;
  padding: 0;
  color: var(--text);
}

li { margin: 0.35em 0; }

/* =========================
   Navigation / Breadcrumb
   ========================= */
nav.breadcrumb {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 12px;
}

/* =========================
   Karten-Layout (responsive)
   ========================= */
.cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;           /* Abstand zwischen Karten */
  margin-top: 12px;    /* Luft zum vorherigen Element */
  align-items: start;
}

/* =========================
   Grid / Info-Boxen
   ========================= */
.grid { display: grid; gap: 14px; }
@media (min-width: 720px) { .grid { grid-template-columns: 1fr 1fr; } }

.box {
  background: var(--accent);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
}

/* Karten */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,.05);
}

/* Mehr Abstand zwischen den Phrasen innerhalb einer Karte */
.card .pair + .pair { margin-top: 12px; }

/* Dark Mode für Karten */
@media (prefers-color-scheme: dark) {
  .card { background: #1b1f24; border-color: #2a2f36; box-shadow: none; }
}

/* Tip/Hinweis */
.tip {
  background: var(--accent);
  border: 1px solid var(--border);
  padding: 12px 14px;
  border-radius: 10px;
}

/* Paare für ES/DE Zeilen */
.pair {
  margin: 10px 0;
  border-left: 4px solid var(--brand);
  padding-left: 10px;
}
.es { font-weight: 650; }
.de { color: var(--muted); }
.hint { display: block; margin-top: 4px; color: var(--muted); font-size: 0.95rem; }
.small { font-size: 0.95rem; }

/* =========================
   Inhaltsverzeichnis
   ========================= */
.toc a {
  display: block;
  padding: 6px 0;
  text-decoration: none;
  color: var(--cta);
}
.toc a:hover { text-decoration: underline; }

/* =========================
   Buttons & CTAs
   ========================= */
.cta {
  display: inline-block;
  margin-top: 8px;
  padding: 12px 16px;
  border-radius: 8px;
  text-decoration: none;
  border: 1px solid var(--cta);
  color: var(--cta);
  text-align: center;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}

.btn-primary,
.back-button {
  display: inline-block;
  padding: 10px 18px;
  margin-top: 12px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--cta-contrast);
  background-color: var(--cta);
  border: 1px solid var(--cta);
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  text-align: center;
  transition: background-color .2s ease, color .2s ease;
}

.cta:hover,
.btn-primary:hover,
.back-button:hover {
  background: var(--cta-hover);
  color: var(--cta-contrast);
  border-color: var(--cta-hover);
}

.back-button:active { background-color: #cc9a06; }

/* =========================
   Kleinteile
   ========================= */
small, figcaption { color: var(--muted); }

kbd {
  background: #f2f2f2;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid #ddd;
  font-family: ui-monospace, Consolas, Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  kbd {
    background: #333;
    border-color: #555;
    color: #eee;
  }
}

/* Bilder & Bildunterschriften in Aufgaben */
.task-image {
  max-width: 90%;
  height: auto;
  display: block;
  margin: 0.25rem auto;
  border-radius: 12px;
}
.task-caption {
  font-size: 0.95rem;
  color: var(--muted-strong);
  text-align: center;
  margin-top: 0.5rem;
}