/* Grundlegendes Styling für große Dropzone */
#drop-zone {
  background-color: #fff;
  border-radius: 12px;
  padding: 2rem 1rem 0.1rem 1rem; /* links/rechts gleich wie oben */
  text-align: center;
  color: #999;
  font-size: 1.25rem;
  font-weight: 600;
  cursor: pointer;
  display: block; /* KEIN Flex nötig */
  min-height: 210px;
  margin: 0 auto 1.5rem auto;
  position: relative;
  height: auto;
  width: 100%;
  box-sizing: border-box;
}

/* Neue Styles: Werbeblöcke vollständig ausblenden */
.hero-ad,
.ads,
.skyscraper.left,
.skyscraper.right {
  display: none !important;
  visibility: hidden !important;
  max-height: 0 !important;
  overflow: hidden !important;
  padding: 0 !important;
  margin: 0 !important;
}

/* Inneres Upload-Feld mit gestrichelter Linie und Text */
.upload-area-inner {
  max-width: 870px;
  min-height: 210px;
  width: 100%;
  margin: 0 auto 0.8rem; /* zentriert innerhalb der Dropzone */
  padding: 2rem 1rem;
  border: 2px dashed #bbb;
  border-radius: 12px;
  box-sizing: border-box;
  text-align: center;
  color: #999;
  font-size: 1.25rem;
  font-weight: 600;
  user-select: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: border-color 0.3s ease, color 0.3s ease;
}

/* Hover-Effekt für Dropzone */
main.content.hover,
#drop-zone.hover {
  background-color: #fafafa;
  outline: none;
  outline-offset: -2px;
  cursor: copy;
}

/* Optional: hover-Farben für inneres Feld, wenn Dropzone hover hat */
main.content.hover .upload-area-inner,
#drop-zone.hover .upload-area-inner {
  border-color: #888;
  color: #666;
}

/* Hinweistext innerhalb des inneren Feldes */
.drag-drop-text {
  margin: 0;
  user-select: none;
  width: 100%;
  text-align: center;
  line-height: 1.4;
  color: #117a8b;
}

/* Verstecktes Datei-Input */
#file-input {
  display: none;
}

/* Buttons und weitere Styles (unverändert) */
#upload-button {
  display: block;
  margin: 0 auto 1.5rem auto;
  padding: 0.5rem 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  border: none;
  background-color: #6c757d;
  color: white;
  transition: background-color 0.3s ease;
  user-select: none;
}

#upload-button:hover,
#upload-button:focus {
  background-color: #5a6268;
  outline: none;
}

.button-group {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
  text-align: center;
  margin: 1rem 0;
}

button.btn-primary,
#compress-button {
  background-color: #28a745;
  color: white;
  padding: 0.5rem 1.5rem;
  font-weight: 700;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
  user-select: none;
}

button.btn-primary:hover,
button.btn-primary:focus,
#compress-button:hover,
#compress-button:focus {
  background-color: #218838;
  outline: none;
}

button.btn-secondary,
#reset-btn {
  background-color: #6c757d;
  color: white;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease;
}

button.btn-secondary:hover,
button.btn-secondary:focus,
#reset-btn:hover,
#reset-btn:focus {
  background-color: #5a6268;
  outline: none;
}

#download-btn.btn-download {
  background-color: #117a8b;
  color: #ffffff;
  padding: 0.5rem 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  user-select: none;
  display: inline-block;
  transition: background-color 0.3s ease, color 0.3s ease;
}

#download-btn.btn-download:hover,
#download-btn.btn-download:focus {
  background-color: #0e6977;
  color: #ffffff;
  outline: none;
}

#progress-container {
  display: none;
  margin: 1rem auto;
  max-width: 400px;
  width: 100%;
}

progress#upload-progress {
  width: 100%;
  height: 14px;
  border-radius: 7px;
  appearance: none;
  background-color: #e0e0e0;
  overflow: hidden;
  -webkit-appearance: none;
}

progress#upload-progress::-webkit-progress-bar {
  background-color: #e0e0e0;
  border-radius: 7px;
}

progress#upload-progress::-webkit-progress-value {
  background-color: #28a745;
  border-radius: 7px;
  transition: width 0.3s ease;
}

progress#upload-progress::-moz-progress-bar {
  background-color: #28a745;
  border-radius: 7px;
  transition: width 0.3s ease;
}

#progress-text {
  text-align: center;
  margin-top: 0.25rem;
  font-weight: 600;
  color: #28a745;
  font-size: 0.9rem;
  user-select: none;
}

#alerts {
  display: none;
  margin: 1rem auto;
  padding: 0.75rem 1rem;
  max-width: 400px;
  border-radius: 4px;
  font-weight: 600;
  background-color: #f8d7da;
  color: #842029;
  border: 1px solid #f5c2c7;
  text-align: center;
}

#success-message {
  display: none;
  margin: 1rem auto 0 auto;
  padding: 0.5rem 1rem;
  max-width: 400px;
  border-radius: 4px;
  font-weight: 600;
  background-color: #d1e7dd;
  color: #0f5132;
  border: 1px solid #badbcc;
  text-align: center;
}

#result {
  display: flex;
  flex-wrap: wrap; /* Zeilenumbrüche */
  overflow-x: auto;  /* horizontal scrollen falls zu breit */
  gap: 1rem;         /* Abstand zwischen den Bildern */
  padding: 0; /* etwas Innenabstand */
  align-items: flex-start;
  justify-content: flex-start;
  user-select: none;
  text-align: left;
  margin: 0;
}

@media (max-width: 768px) {
  #result {
    flex-wrap: wrap !important;
    overflow-x: hidden !important;
  }
}

/* Container für Bild + Overlay */
.preview-image-wrapper {
  position: relative;
  width: 160px;
  height: 160px; /* quadratisch */
  border-radius: 6px;
  overflow: hidden;
  user-select: none;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
  background-color: #fff;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Bild quadratisch, füllt Container komplett */
.preview-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 6px;
  z-index: 10;
  position: relative;
}

/* Dateiname oben links als weißes Overlay */
.preview-name {
  position: absolute;
  top: 6px;
  left: 8px;
  right: 8px;
  font-weight: 600;
  font-size: 0.85rem;
  color: white;
  text-shadow: 0 0 5px rgba(0,0,0,0.8);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
  user-select: none;
  text-align: left;
  z-index: 25;
}

/* Overlay mit Kompressionsrate mittig */
.preview-percentage-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-weight: 700;
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 0 5px rgba(0,0,0,0.8);
  pointer-events: none;
  user-select: none;
  z-index: 20;
}

/* Download-Button unten als Overlay zentriert */
.preview-download {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #fff;
  color: #333;
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  z-index: 25;
  user-select: none;
  transition: background-color 0.3s ease;
  width: auto;
  min-width: 90px;
  text-align: center;
}

.preview-download:hover,
.preview-download:focus {
  background-color: #f0f0f0;
  color: #000;
  outline: none;
}

/* Entfernen-Button oben rechts als Overlay */
.preview-image-wrapper button.remove-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  background-color: rgba(255, 255, 255, 0.8);
  border: none;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  cursor: pointer;
  font-weight: 700;
  color: #842029;
  transition: background-color 0.2s ease;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  padding: 0;
  line-height: 1;
}

.preview-image-wrapper button.remove-btn:hover,
.preview-image-wrapper button.remove-btn:focus {
  background-color: rgba(255, 0, 0, 0.8);
  color: white;
  outline: none;
}

/* Bereits vorhandene Klassen unverändert */
.preview-item {
  display: inline-block;
  margin: 0 0.5rem 1rem 0.5rem;
  vertical-align: middle;
  position: relative;
}

.preview-item img {
  display: block;
  max-width: 160px;
  max-height: 120px;
  border-radius: 6px;
  box-shadow: 0 0 8px rgba(0,0,0,0.1);
  user-select: none;
}

.preview-item button.remove-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  background-color: rgba(255,255,255,0.8);
  border: none;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  cursor: pointer;
  font-weight: 700;
  color: #842029;
  transition: background-color 0.2s ease;
}

.preview-item button.remove-btn:hover,
.preview-item button.remove-btn:focus {
  background-color: rgba(255,0,0,0.8);
  color: white;
  outline: none;
}

.preview-item .download-overlay {
  position: absolute;
  bottom: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  text-align: center;
  padding: 0.3rem 0;
  border-radius: 0 0 6px 6px;
  cursor: pointer;
  font-size: 0.85rem;
  user-select: none;
  transition: background-color 0.3s ease;
}

.preview-item .download-overlay:hover,
.preview-item .download-overlay:focus {
  background: rgba(0, 0, 0, 0.75);
  outline: none;
}

.preview-item .reduction-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  background-color: #28a745;
  color: white;
  padding: 0.2rem 0.5rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  pointer-events: none;
  user-select: none;
  z-index: 2;
}

.hidden {
  display: none !important;
}

/* Für Fokus (Barrierefreiheit) */
#drop-zone:focus-visible {
  outline: 2px solid #000;
  outline-offset: 2px;
  background-color: #f9f9f9;
}

/* Anpassung für Vorschaubereich */
/* .preview Container */
.preview {
  width: 100%;
  display: flex;
  flex-wrap: wrap; /* Umbruch statt Scroll */
  gap: 1rem;
  padding: 0.5rem 0;
  align-items: flex-start;
  justify-content: flex-start;
  text-align: left;
  box-sizing: border-box;
}

/* Media Query für mobile */
@media (max-width: 768px) {
  .preview {
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

/* Dateien vom Server löschen */
#delete-files-text {
  font-weight: 600;
  font-size: 0.9rem;
  color: #d97706;
  cursor: pointer;
  user-select: none;
  display: inline-block;
  padding: 0 0 1.4rem 0;
  text-align: center;
  width: 100%;
}

#delete-files-text:hover,
#delete-files-text:focus {
  text-decoration: underline;
  outline: none;
}

/* Dateien werden alle 60 Min. gelöscht-Hinweis */
.delete-note-text {
  text-align: center;
  font-size: 0.9rem;
  color: #666666;  /* Dezente Schriftfarbe */
  margin-top: 1rem;
  padding: 0;
  border: none;
  background: none;
}

/* Werbung - Werbeblöcke sind standardmäßig versteckt */
.hero-ad,
.ads,
.skyscraper.left,
.skyscraper.right {
  display: none;
}

/* Sichtbarkeit bei Inhalt */
.hero-ad.has-content,
.ads.has-content,
.skyscraper.left.has-content,
.skyscraper.right.has-content {
  display: flex; /* Alternativ 'block' je nach Layout */
}

.hero-ad:empty {
  display: none !important;
}

.hero-ad:empty {
  display: none !important;
  padding: 0;
  margin: 0;
  border: none;
  height: 0;
  min-height: 0;
}