/* App-specific styles */
.app-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2.5rem;
  border-bottom: 1px solid var(--border);
}
.app-nav-logo {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
}
.app-nav-back {
  font-size: 0.85rem;
  color: var(--ink-muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.2s;
}
.app-nav-back:hover { color: var(--accent); }

.app-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2.5rem;
}

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: 20px;
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: var(--surface);
  margin-bottom: 2rem;
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent);
  background: var(--tag-bg);
}
.upload-zone-icon {
  width: 72px;
  height: 72px;
  background: var(--tag-bg);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  color: var(--accent);
}
.upload-zone h2 {
  font-family: 'Fraunces', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}
.upload-zone p {
  font-size: 0.9rem;
  color: var(--ink-muted);
  margin-bottom: 1.5rem;
}
.upload-btn {
  display: inline-block;
  background: var(--accent);
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.75rem 1.75rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}
.upload-btn:hover { background: var(--accent-dark); }
.upload-hint {
  font-size: 0.75rem;
  color: var(--ink-muted);
  margin-top: 0.75rem;
}
#fileInput { display: none; }

.preview-row {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  align-items: flex-start;
}
.preview-img-wrap {
  flex: 0 0 200px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
}
.preview-img-wrap img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}
.preview-info {
  flex: 1;
}
.preview-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ink);
  margin-bottom: 0.25rem;
}
.preview-meta {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-bottom: 1rem;
}
.btn-generate {
  background: var(--accent);
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-generate:hover { background: var(--accent-dark); }
.btn-generate:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.btn-clear {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--ink-muted);
  font-size: 0.8rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  margin-left: 0.5rem;
}
.btn-clear:hover { border-color: var(--ink-muted); }

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.results-section {
  margin-top: 2.5rem;
}
.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.results-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
.btn-regenerate {
  background: var(--accent);
  color: white;
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}
.btn-regenerate:hover { background: var(--accent-dark); }
.btn-clear-sm {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--ink-muted);
  font-size: 0.8rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.2s;
}
.btn-clear-sm:hover { border-color: var(--ink-muted); }
.results-title {
  font-family: 'Fraunces', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
}
.lang-tabs {
  display: flex;
  gap: 0.5rem;
}
.lang-tab {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--ink-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.lang-tab.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.content-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}
.content-block-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 1rem;
}
.script-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.2s;
  position: relative;
}
.script-item:hover { border-color: var(--accent); }
.script-num {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--accent);
  font-size: 0.65rem;
  font-weight: 800;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}
.caption-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.2s;
}
.caption-item:hover { border-color: var(--accent); }
.hashtag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.hashtag {
  background: var(--tag-bg);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 99px;
  cursor: pointer;
  transition: opacity 0.2s;
}
.hashtag:hover { opacity: 0.8; }
.ad-headline {
  background: var(--ink);
  color: var(--bg);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.ad-headline:hover { background: var(--accent); }

@media (max-width: 700px) {
  .app-main { padding: 2rem 1.25rem; }
  .preview-row { flex-direction: column; }
  .preview-img-wrap { flex: none; width: 100%; }
  .preview-img-wrap img { height: 200px; }
}