/* ============================================================
   Podcaster Tools — Shared CSS
   Used across all /tools/* pages.
   ============================================================ */

/* ── Breadcrumb ──────────────────────────────────────────── */
.tool-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 0 0;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.tool-breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.tool-breadcrumb a:hover {
  color: var(--text);
}

.tool-breadcrumb span[aria-current] {
  color: var(--text-soft);
}

/* ── Section nav (sticky jump links) ─────────────────────── */
.tools-section-nav {
  position: sticky;
  top: var(--header-height);
  z-index: 50;
  display: flex;
  gap: 6px;
  padding: 12px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  background: rgba(7, 17, 31, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.tools-section-nav::-webkit-scrollbar {
  display: none;
}

.tools-section-nav a {
  flex-shrink: 0;
  padding: 6px 14px;
  border-radius: var(--r-full);
  font-size: 0.82rem;
  font-weight: var(--font-weight-medium);
  color: var(--text-muted);
  white-space: nowrap;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.tools-section-nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

/* ── Tool cards ──────────────────────────────────────────── */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.tool-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.tool-card h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: var(--font-weight-semibold);
  color: var(--text);
}

.tool-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-soft);
  flex: 1;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
}

.tool-visit {
  font-size: 0.84rem;
  font-weight: var(--font-weight-medium);
  color: var(--primary);
  transition: color var(--transition-fast);
}

.tool-visit:hover {
  color: var(--accent-cool);
}

/* Pricing badges */
.pricing-free {
  color: var(--success);
  font-size: 0.78rem;
  font-weight: var(--font-weight-medium);
}

.pricing-freemium {
  color: var(--accent-cool);
  font-size: 0.78rem;
  font-weight: var(--font-weight-medium);
}

.pricing-paid {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: var(--font-weight-medium);
}

/* Internal tool cards (highlighted) */
.tool-card--internal {
  border-color: rgba(106, 166, 255, 0.2);
  background: linear-gradient(135deg, rgba(106, 166, 255, 0.06) 0%, var(--surface) 100%);
}

.tool-card--internal:hover {
  border-color: rgba(106, 166, 255, 0.4);
}

.tool-card--coming-soon {
  opacity: 0.6;
  pointer-events: none;
}

.tool-card--coming-soon .tool-visit {
  color: var(--text-muted);
}

/* ── Tool form inputs ────────────────────────────────────── */
.tool-form {
  display: flex;
  gap: 12px;
  max-width: 680px;
}

.tool-input {
  flex: 1;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  background: var(--surface-2);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.tool-input::placeholder {
  color: var(--text-muted);
}

.tool-input:focus {
  outline: none;
  border-color: var(--primary);
}

.tool-submit {
  flex-shrink: 0;
}

.tool-textarea {
  width: 100%;
  min-height: 120px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  background: var(--surface-2);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color var(--transition-fast);
}

.tool-textarea:focus {
  outline: none;
  border-color: var(--primary);
}

/* ── Results display ─────────────────────────────────────── */
.tool-results {
  display: none;
}

.tool-results.is-visible {
  display: block;
}

.result-summary {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.result-score {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 18px 28px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  min-width: 100px;
}

.result-score strong {
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  line-height: 1;
}

.result-score span {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.result-score--pass strong { color: var(--success); }
.result-score--warn strong { color: var(--accent); }
.result-score--fail strong { color: #FF6B6B; }

/* ── Check items ─────────────────────────────────────────── */
.result-category {
  margin-bottom: var(--space-lg);
}

.result-category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}

.result-category-header h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
}

.result-category-header .count {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.9rem;
}

.check-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: var(--font-weight-bold);
  margin-top: 2px;
}

.check-icon--pass { background: rgba(157, 231, 179, 0.15); color: var(--success); }
.check-icon--warn { background: rgba(255, 156, 67, 0.15); color: var(--accent); }
.check-icon--fail { background: rgba(255, 107, 107, 0.15); color: #FF6B6B; }
.check-icon--info { background: rgba(106, 166, 255, 0.15); color: var(--primary); }

.check-body {
  flex: 1;
  min-width: 0;
}

.check-title {
  color: var(--text);
  font-weight: var(--font-weight-medium);
}

.check-detail {
  margin-top: 4px;
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.check-fix {
  margin-top: 6px;
  padding: 8px 12px;
  border-radius: var(--r-xs);
  background: rgba(255, 107, 107, 0.08);
  border-left: 3px solid #FF6B6B;
  font-size: 0.82rem;
  color: var(--text-soft);
  line-height: 1.5;
}

/* ── Loading & error states ──────────────────────────────── */
.tool-loading {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.tool-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: tool-spin 0.7s linear infinite;
}

@keyframes tool-spin {
  to { transform: rotate(360deg); }
}

.tool-error {
  padding: 16px 20px;
  border-radius: var(--r-xs);
  border: 1px solid rgba(255, 107, 107, 0.3);
  background: rgba(255, 107, 107, 0.08);
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ── Share bar ───────────────────────────────────────────── */
.tool-share-bar {
  display: flex;
  gap: 10px;
  margin-top: var(--space-lg);
}

.tool-share-bar button {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  background: transparent;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: var(--font-weight-medium);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.tool-share-bar button:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

/* ── Cross-links section ─────────────────────────────────── */
.tool-cross-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

/* ── Calculator-specific ─────────────────────────────────── */
.calc-input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--space-md);
}

.calc-input-group label {
  font-size: 0.88rem;
  color: var(--text-soft);
  font-weight: var(--font-weight-medium);
}

.calc-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--surface-2);
  outline: none;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
}

.calc-output {
  padding: 22px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  text-align: center;
}

.calc-output strong {
  display: block;
  font-size: 2.4rem;
  font-weight: var(--font-weight-bold);
  color: var(--text);
  line-height: 1.1;
}

.calc-output span {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.calc-comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-top: var(--space-lg);
}

/* ── Art checker ─────────────────────────────────────────── */
.art-preview {
  position: relative;
  display: inline-block;
  max-width: 300px;
  border-radius: var(--r-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}

.art-preview img {
  display: block;
  width: 100%;
  height: auto;
}

.art-dimension-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  padding: 4px 10px;
  border-radius: var(--r-full);
  background: rgba(0, 0, 0, 0.75);
  color: var(--text);
  font-size: 0.76rem;
  font-weight: var(--font-weight-medium);
}

/* ── OPML viewer ─────────────────────────────────────────── */
.opml-drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 48px 24px;
  border: 2px dashed var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.opml-drop-zone:hover,
.opml-drop-zone.is-dragover {
  border-color: var(--primary);
  background: rgba(106, 166, 255, 0.04);
}

.opml-tree {
  list-style: none;
  padding: 0;
  margin: 0;
}

.opml-category {
  margin-bottom: var(--space-sm);
}

.opml-category-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  font-weight: var(--font-weight-semibold);
  color: var(--text);
  cursor: pointer;
  border-bottom: 1px solid var(--border);
}

.opml-category-header .count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: var(--font-weight-normal);
}

.opml-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0 8px 24px;
  font-size: 0.9rem;
  color: var(--text-soft);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.opml-item.is-removed {
  text-decoration: line-through;
  opacity: 0.4;
}

.opml-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding: 16px 0;
}

.opml-stat {
  text-align: center;
}

.opml-stat strong {
  display: block;
  font-size: 1.6rem;
  color: var(--text);
}

.opml-stat span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ── Callout box ─────────────────────────────────────────── */
.tool-callout {
  padding: 20px 24px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(106, 166, 255, 0.2);
  background: rgba(106, 166, 255, 0.04);
  margin-top: var(--space-lg);
}

.tool-callout h4 {
  margin: 0 0 8px;
  font-size: 0.95rem;
  color: var(--text);
}

.tool-callout p,
.tool-callout li {
  font-size: 0.88rem;
  color: var(--text-soft);
  line-height: 1.6;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 720px) {
  .tool-form {
    flex-direction: column;
  }

  .tool-grid {
    grid-template-columns: 1fr;
  }

  .tool-cross-links {
    grid-template-columns: 1fr;
  }

  .calc-comparison {
    grid-template-columns: repeat(2, 1fr);
  }

  .result-summary {
    flex-direction: column;
  }

  .result-score {
    flex-direction: row;
    gap: 12px;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .calc-comparison {
    grid-template-columns: 1fr;
  }
}