/* --- Google Font "Roboto" einbinden --- */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

/* --- GRUNDLEGENDES RESET / BASISSTILE --- */
* {
  box-sizing: border-box;
}
html, body {
  margin: 0;
  padding: 0;
  font-family: 'Roboto', sans-serif;
  background-color: #ffffff;
  color: #333;
}

/* --- HEADER-STILE --- */
header {
  background: #ffffff;
  min-height: 80px; 
  border-bottom: 1px solid rgba(0,0,0,0.1);
  padding-bottom: 1rem;
}
.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 2rem 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-title {
  margin: 0;
  font-size: 1.5rem;
}
.settings-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}
.settings-btn img {
  width: 24px;
  height: 24px;
}

/* --- MAIN-STILE --- */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 2rem;
  padding-right: 2rem;
  padding-bottom: 3rem;
}

/* --- FOOTER-STILE --- */
footer {
  background: #ffffff;
  border-top: 1px solid rgba(0,0,0,0.1);
  padding-top: 1rem;
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 2rem;
}
@media (min-width: 768px) {
  .footer-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}
.footer-column {
  flex: 1;
  min-width: 200px;
}
.footer-column h3 {
  margin-top: 0;
}

/* --- GRID FÜR DIE KARTEN (Startscreen) --- */
.card-container {
  margin: 0;
  padding: 0;
  display: grid;
  grid-gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .card-container {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1200px) {
  .card-container {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --- KARTEN --- */
.card {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.card img {
  width: 100%;
  height: auto;
  display: block;
}
.card-body {
  padding: 1.5rem;
}
.card-body h2 {
  margin: 0;
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}
.card-body p {
  margin: 0;
}
.card .card-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  background: #ffffff;
}
.card .card-actions button {
  background-color: #3367D6;
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}
.card .card-actions button:hover {
  background-color: #2853a9;
}

/* --- DETAIL-ANSICHT --- */
.detail-view {
  padding: 1rem 0;
}
.nav-bar {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  position: relative;
}
.nav-bar button {
  background-color: #3367D6;
  color: #fff;
  border: none;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}
.nav-bar button:hover {
  background-color: #2853a9;
}
.detail-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.detail-content img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

/* Ab Tablet-Breite: zweispaltiges Layout */
@media (min-width: 768px) {
  .detail-content {
    display: grid;
    grid-template-columns: 45% 1fr;
    grid-template-rows: auto auto auto auto;
    gap: 1rem;
    align-items: start;
  }

  .detail-content h2 {
    grid-column: 1 / -1;
    grid-row: 1;
  }
  .detail-content img {
    grid-column: 1;
    grid-row: 2;
    max-width: 100%;
  }
  .detail-text {
    grid-column: 2;
    grid-row: 2;
  }
  .nav-bar {
    grid-column: 1 / -1;
    grid-row: 3;
    justify-content: center;
  }
  .detail-content p[style*="margin-top: 1rem"] {
    grid-column: 1 / -1;
    grid-row: 4;
  }
}

/* --- OFFLINE-INFO / MODAL (Banner) --- */
.offline-info-overlay {
  position: fixed;
  top: 0; 
  left: 0;
  width: 100%; 
  height: 100%;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.offline-info-modal {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  max-width: 500px;
  width: 90%;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.offline-info-modal h2 {
  margin-top: 0;
}
.offline-info-modal button {
  margin: 0.5rem;
  background-color: #3367D6;
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}
.offline-info-modal button:hover {
  background-color: #2853a9;
}

/* --- INSTALL-INSTRUCTIONS SECTION (unter den Karten) --- */
.install-instructions {
  margin-top: 2rem;
  padding: 1rem;
  background: #f9f9f9;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.install-instructions h2 {
  margin-top: 0;
}
.install-instructions p {
  margin-bottom: 1rem;
}