/* signal.css - Styles for Signal page */

.signal-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* Page Header */
.signal-page-header {
  text-align: center;
  margin-bottom: 40px;
}

.signal-page-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.signal-subtitle {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto;
}

/* Search Bar */
.signal-search-wrapper {
  position: relative;
  margin-bottom: 30px;
}

.signal-search-wrapper .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  stroke: var(--muted);
  fill: none;
  stroke-width: 2;
  pointer-events: none;
}

.signal-search-input {
  width: 100%;
  padding: 12px 16px 12px 48px;
  font-size: 0.95rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s ease;
}

.signal-search-input:focus {
  outline: none;
  border-color: var(--link);
}

.signal-search-input::placeholder {
  color: var(--muted);
}

/* Tag Filter */
.signal-tags-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.tag-btn {
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
}

.tag-btn:hover {
  background: var(--link);
  color: #ffffff;
  border-color: var(--link);
}

.tag-btn.active {
  background: var(--link);
  color: #ffffff;
  border-color: var(--link);
}

.tag-btn:focus {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

/* Signal Feed */
.signal-feed {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Signal Card */
.signal-card {
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  transition: border-color 0.2s ease;
  overflow: hidden;
}

.signal-card:hover {
  border-color: var(--link);
}

/* Signal Image */
.signal-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: rgba(128, 128, 128, 0.1);
}

.signal-image a {
  display: block;
  width: 100%;
  height: 100%;
}

.signal-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.signal-card:hover .signal-image img {
  transform: scale(1.05);
}

/* Card Header */
.signal-header {
  margin-bottom: 16px;
  padding: 24px 24px 0 24px;
}

.signal-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 8px 0;
  line-height: 1.4;
}

.signal-title a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.signal-title a:hover {
  border-bottom-color: var(--link);
}

.signal-title a:focus {
  outline: 2px solid var(--link);
  outline-offset: 2px;
  border-radius: 2px;
}

.signal-meta {
  display: flex;
  gap: 12px;
  font-size: 0.875rem;
  color: var(--muted);
}

.signal-source {
  font-weight: 500;
}

.signal-date::before {
  content: "•";
  margin-right: 12px;
}

/* Commentary */
.signal-commentary {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 16px;
  padding: 16px 24px;
  background: rgba(128, 128, 128, 0.05);
  border-left: 3px solid var(--link);
  margin-left: 24px;
  margin-right: 24px;
  border-radius: 4px;
}

.commentary-preview,
.commentary-full {
  margin-bottom: 12px;
}

.read-more-btn {
  padding: 6px 12px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--link);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.read-more-btn:hover {
  color: var(--text);
  text-decoration-thickness: 2px;
}

.read-more-btn:focus {
  outline: 2px solid var(--link);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Tags */
.signal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
  padding: 0 24px;
}

.signal-tag {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--link);
  background: rgba(128, 128, 128, 0.1);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.signal-tag:hover {
  background: var(--link);
  color: #ffffff;
}

/* Actions */
.signal-actions {
  margin-bottom: 12px;
  padding: 0 24px;
}

.share-toggle-btn {
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--link);
  background: transparent;
  border: 1px solid var(--link);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.share-toggle-btn:hover {
  background: var(--link);
  color: #ffffff;
}

.share-toggle-btn:focus {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

/* Share Section */
.signal-share {
  padding: 16px 24px 24px 24px;
  border-top: 1px solid var(--line);
  margin: 0 24px 24px 24px;
}

.share-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.share-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
}

.share-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.share-btn:hover {
  border-color: var(--link);
  background: rgba(128, 128, 128, 0.05);
}

.share-btn:focus {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

.share-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Platform-specific colors (optional, subtle) */
.share-x:hover {
  border-color: #000000;
  color: #000000;
}

[data-theme="dark"] .share-x:hover {
  border-color: #ffffff;
  color: #ffffff;
}

.share-linkedin:hover {
  border-color: #0077b5;
  color: #0077b5;
}

.share-instagram:hover {
  border-color: #E4405F;
  color: #E4405F;
}

.share-copy:hover {
  border-color: var(--link);
  color: var(--link);
}

/* Responsive Design */
@media (max-width: 768px) {
  .signal-container {
    padding: 30px 16px;
  }

  .signal-page-header h1 {
    font-size: 2rem;
  }

  .signal-subtitle {
    font-size: 0.9rem;
  }

  .signal-image {
    height: 180px;
  }

  .signal-header {
    padding: 20px 20px 0 20px;
  }

  .signal-title {
    font-size: 1.1rem;
  }

  .signal-commentary {
    font-size: 0.9rem;
    padding: 12px 20px;
    margin-left: 20px;
    margin-right: 20px;
  }

  .signal-tags {
    padding: 0 20px;
  }

  .signal-actions {
    padding: 0 20px;
  }

  .signal-share {
    padding: 16px 20px 20px 20px;
    margin: 0 20px 20px 20px;
  }

  .signal-meta {
    flex-direction: column;
    gap: 4px;
  }

  .signal-date::before {
    content: "";
    margin-right: 0;
  }

  .share-buttons {
    flex-direction: column;
  }

  .share-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .signal-page-header h1 {
    font-size: 1.75rem;
  }

  .signal-tags-filter {
    gap: 6px;
  }

  .tag-btn {
    font-size: 0.8rem;
    padding: 6px 12px;
  }

  .signal-image {
    height: 160px;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  .signal-card,
  .tag-btn,
  .share-btn,
  .share-toggle-btn,
  .signal-title a,
  .signal-image img {
    transition: none;
  }
}

/* Print Styles */
@media print {
  .signal-search-wrapper,
  .signal-tags-filter,
  .signal-actions,
  .signal-share,
  .site-header {
    display: none;
  }

  .signal-card {
    page-break-inside: avoid;
    border: 1px solid #000;
  }

  .signal-title a {
    color: #000;
    text-decoration: underline;
  }

  .signal-image {
    height: auto;
    max-height: 300px;
  }
}