/* ============================================================
   Lernportal – Gemeinsame Styles
   ============================================================ */

:root {
  --primary:       #4A90E2;
  --primary-dark:  #2C6FBF;
  --csr-color:     #4A90E2;
  --csr-light:     #EAF3FB;
  --manzo-color:   #27AE60;
  --manzo-light:   #E8F8EF;
  --mathe-color:   #E74C3C;
  --mathe-light:   #FDEDEC;
  --deutsch-color: #9B59B6;
  --deutsch-light: #F5EEF8;
  --englisch-color:#F39C12;
  --englisch-light:#FEF9E7;
  --sachkunde-color:#16A085;
  --sachkunde-light:#E8F8F5;
  --text-dark:     #2C3E50;
  --text-mid:      #555E6D;
  --text-light:    #8493A8;
  --bg:            #F0F4FF;
  --card-bg:       #FFFFFF;
  --shadow-sm:     0 2px 8px rgba(0,0,0,0.08);
  --shadow-md:     0 6px 20px rgba(0,0,0,0.12);
  --shadow-hover:  0 10px 30px rgba(0,0,0,0.18);
  --radius:        18px;
  --radius-sm:     10px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text-dark);
  min-height: 100vh;
}

/* ---- Page Header ---- */
.page-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 40px 20px 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.page-header .emoji { font-size: 3.5rem; display: block; margin-bottom: 10px; }
.page-header h1 { font-size: clamp(1.6rem, 5vw, 2.6rem); font-weight: 800; letter-spacing: -0.5px; }
.page-header p { font-size: 1.1rem; opacity: 0.85; margin-top: 8px; }

/* School-specific headers */
.page-header.csr-header   { background: linear-gradient(135deg, #4A90E2 0%, #2C6FBF 100%); }
.page-header.manzo-header { background: linear-gradient(135deg, #27AE60 0%, #1E8449 100%); }
.page-header.mathe-header { background: linear-gradient(135deg, #E74C3C 0%, #C0392B 100%); }
.page-header.deutsch-header { background: linear-gradient(135deg, #9B59B6 0%, #7D3C98 100%); }
.page-header.englisch-header { background: linear-gradient(135deg, #F39C12 0%, #D68910 100%); }
.page-header.sachkunde-header { background: linear-gradient(135deg, #16A085 0%, #0E6655 100%); }
.page-header.coming-header { background: linear-gradient(135deg, #95A5A6 0%, #7F8C8D 100%); }

/* ---- Breadcrumb ---- */
.breadcrumb {
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(6px);
  border-radius: 50px;
  padding: 6px 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  margin-top: 14px;
  flex-wrap: wrap;
  justify-content: center;
}
.breadcrumb a { color: rgba(255,255,255,0.9); text-decoration: none; }
.breadcrumb a:hover { color: white; text-decoration: underline; }
.breadcrumb .sep { color: rgba(255,255,255,0.6); }
.breadcrumb .current { color: white; font-weight: 600; }

/* ---- Main Content ---- */
.main-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

/* ---- Section Title ---- */
.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-mid);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title::after {
  content: '';
  flex: 1;
  height: 2px;
  background: linear-gradient(to right, #e0e0e0, transparent);
  border-radius: 2px;
}

/* ---- Card Grid ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.card-grid.two-col { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

/* ---- Card ---- */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 28px 24px;
  text-decoration: none;
  color: var(--text-dark);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  border: 2px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 5px; height: 100%;
  border-radius: var(--radius) 0 0 var(--radius);
  background: var(--card-accent, #ccc);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--card-accent, #ccc);
}
.card.disabled {
  opacity: 0.65;
  cursor: default;
  pointer-events: none;
}

/* Card colour variants */
.card.csr       { --card-accent: var(--csr-color); }
.card.manzo     { --card-accent: var(--manzo-color); }
.card.mathe     { --card-accent: var(--mathe-color); }
.card.deutsch   { --card-accent: var(--deutsch-color); }
.card.englisch  { --card-accent: var(--englisch-color); }
.card.sachkunde { --card-accent: var(--sachkunde-color); }

.card .card-emoji {
  font-size: 2.2rem;
  line-height: 1;
}
.card .card-title {
  font-size: 1.25rem;
  font-weight: 700;
}
.card .card-sub {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.4;
}
.card .card-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 50px;
  background: var(--card-accent, #ccc);
  color: white;
  margin-top: auto;
}
.card .card-badge.coming {
  background: #BDC3C7;
}

/* ---- Back Button ---- */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: white;
  color: var(--text-mid);
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  border: 2px solid #E8ECF0;
  margin-bottom: 30px;
  transition: background 0.2s, border-color 0.2s;
}
.back-btn:hover { background: #F8FAFF; border-color: var(--primary); color: var(--primary); }

/* ---- Info Box ---- */
.info-box {
  background: white;
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 30px;
  border-left: 5px solid var(--primary);
}
.info-box.coming-soon { border-left-color: #95A5A6; text-align: center; padding: 50px 28px; }
.info-box.coming-soon .big-emoji { font-size: 4rem; margin-bottom: 16px; display: block; }
.info-box.coming-soon h2 { font-size: 1.5rem; color: var(--text-dark); }
.info-box.coming-soon p { color: var(--text-light); margin-top: 8px; font-size: 1rem; }

/* ---- Footer ---- */
.site-footer {
  text-align: center;
  padding: 24px 20px 20px;
  color: var(--text-light);
  font-size: 0.82rem;
  border-top: 1px solid #E8ECF0;
  line-height: 1.7;
}
.site-footer .footer-disclaimer {
  margin-top: 6px;
  font-size: 0.76rem;
  color: #94a3b8;
}

/* ---- Responsive ---- */
@media (max-width: 500px) {
  .card-grid { grid-template-columns: 1fr; }
  .card-grid.two-col { grid-template-columns: 1fr; }
  .page-header { padding: 30px 16px 40px; }
}