/* ============================================================
   Panos Khan AI Platform — ai-platform.css
   Premium Dark UI Extension for the AI Section
   ============================================================ */

/* ── Breadcrumbs ────────────────────────────────────────── */
.ai-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-subtle);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.ai-breadcrumbs a {
  color: var(--text-muted);
  transition: color var(--t);
}
.ai-breadcrumbs a:hover {
  color: var(--neon);
  text-shadow: none;
}
.ai-breadcrumbs .separator {
  color: var(--border);
}
.ai-breadcrumbs .current {
  color: var(--text);
  font-weight: 500;
}

/* ── Layout Grid ────────────────────────────────────────── */
.ai-layout-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}
@media (max-width: 992px) {
  .ai-layout-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ── Tool Cards & Forms ──────────────────────────────────── */
.ai-card {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}
.ai-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-brand);
  opacity: 0.8;
}
.ai-card.featured-card::before {
  height: 4px;
}
.ai-card.featured-card {
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow: 0 16px 48px rgba(0, 229, 255, 0.06);
}

.ai-form-group {
  margin-bottom: 20px;
}
.ai-form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.94rem;
  margin-bottom: 8px;
  color: var(--text);
}
.ai-form-group input,
.ai-form-group select,
.ai-form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-3);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
}
.ai-form-group input:focus,
.ai-form-group select:focus,
.ai-form-group textarea:focus {
  border-color: var(--neon);
  box-shadow: 0 0 0 3px var(--neon-dim);
}
.ai-form-group textarea {
  min-height: 110px;
  resize: vertical;
}

.ai-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--t);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
}
.ai-btn-primary {
  border-color: var(--neon);
  background: linear-gradient(135deg, #083642 0%, #111c33 100%);
  color: var(--text);
  box-shadow: 0 4px 15px var(--neon-dim);
}
.ai-btn-primary:hover {
  border-color: var(--neon);
  background: linear-gradient(135deg, #0d535e 0%, #15274d 100%);
  box-shadow: 0 4px 20px var(--neon-glow);
  transform: translateY(-1px);
}
.ai-btn:hover {
  background: var(--surface);
  border-color: var(--text-subtle);
}

/* ── Output Wrapping ────────────────────────────────────── */
.ai-output-wrap {
  margin-top: 28px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: none;
}
.ai-output-wrap.visible {
  display: block;
}
.ai-output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}
.ai-output-header h3 {
  margin: 0;
  font-size: 1.2rem;
  color: var(--neon);
}
.ai-output-box {
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #cde6ff;
  overflow-x: auto;
  white-space: pre-wrap;
  margin: 0;
}
.ai-output-formatted {
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  color: var(--text);
}
.ai-output-formatted section {
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-soft);
  padding-bottom: 16px;
}
.ai-output-formatted section:last-child {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}
.ai-output-formatted h4 {
  color: var(--neon);
  margin: 0 0 10px;
  font-size: 1.05rem;
}
.ai-output-formatted ul {
  margin: 0;
  padding-left: 20px;
}
.ai-output-formatted li {
  margin-bottom: 8px;
}

/* ── Documentation Tabs ─────────────────────────────────── */
.ai-docs-card {
  margin-bottom: 24px;
}
.ai-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
  gap: 8px;
  overflow-x: auto;
}
.ai-tab-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--t);
  white-space: nowrap;
}
.ai-tab-btn:hover {
  color: var(--text);
}
.ai-tab-btn.active {
  color: var(--neon);
  border-bottom-color: var(--neon);
}
.ai-tab-pane {
  display: none;
  font-size: 0.93rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.ai-tab-pane.active {
  display: block;
}

/* ── FAQ Accordion ──────────────────────────────────────── */
.ai-faq-card {
  margin-bottom: 24px;
}
.ai-faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  background: var(--surface-3);
  overflow: hidden;
}
.ai-faq-trigger {
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  text-align: left;
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: background var(--t);
}
.ai-faq-trigger:hover {
  background: rgba(30, 45, 77, 0.2);
}
.ai-faq-icon {
  font-size: 0.8rem;
  color: var(--text-subtle);
  transition: transform var(--t);
}
.ai-faq-item.active .ai-faq-icon {
  transform: rotate(180deg);
  color: var(--neon);
}
.ai-faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--t) ease-out;
}
.ai-faq-content {
  padding: 0 18px 18px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Changelog / Version History ────────────────────────── */
.ai-changelog-card {
  margin-bottom: 24px;
}
.ai-changelog-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ai-changelog-item {
  border-left: 2px solid var(--border);
  padding-left: 16px;
  position: relative;
}
.ai-changelog-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: background var(--t);
}
.ai-changelog-item:first-child {
  border-left-color: var(--neon);
}
.ai-changelog-item:first-child::before {
  background: var(--neon);
  box-shadow: 0 0 8px var(--neon);
}
.ai-changelog-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.ai-changelog-version {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--neon);
  background: var(--neon-dim);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid rgba(0, 229, 255, 0.2);
}
.ai-changelog-item:not(:first-child) .ai-changelog-version {
  color: var(--text-muted);
  background: none;
  border-color: var(--border);
}
.ai-changelog-date {
  font-size: 0.82rem;
  color: var(--text-subtle);
}
.ai-changelog-changes {
  margin: 0;
  padding-left: 18px;
  font-size: 0.88rem;
  color: var(--text-muted);
}
.ai-changelog-changes li {
  margin-bottom: 4px;
}

/* ── Related Tools ──────────────────────────────────────── */
.ai-related-section {
  border-top: 1px solid var(--border);
  padding-top: 40px;
  margin-top: 48px;
}
.ai-related-section h2 {
  font-size: 1.6rem;
  margin-bottom: 24px;
  color: var(--text);
}
.ai-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* ── Hub Homepage Specifics ─────────────────────────────── */
.ai-hub-hero {
  text-align: center;
  padding: 60px 0 40px;
  max-width: 800px;
  margin: 0 auto;
}
.ai-hub-hero h1 {
  margin-bottom: 16px;
}
.ai-hub-hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
}

.ai-hub-controls {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}
.ai-search-wrapper {
  position: relative;
  width: 100%;
}
.ai-search-input {
  width: 100%;
  padding: 16px 20px 16px 48px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-3);
  color: var(--text);
  font-size: 1.05rem;
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
}
.ai-search-input:focus {
  border-color: var(--neon);
  box-shadow: 0 0 20px var(--neon-dim);
}
.ai-search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-subtle);
  pointer-events: none;
}

.ai-categories-wrapper {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.ai-category-pill {
  background: var(--surface-3);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--t);
}
.ai-category-pill:hover {
  border-color: var(--purple);
  color: var(--text);
}
.ai-category-pill.active {
  background: var(--neon-dim);
  border-color: var(--neon);
  color: var(--neon);
  box-shadow: 0 0 10px var(--neon-glow);
}

.ai-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}
@media (max-width: 480px) {
  .ai-hub-grid {
    grid-template-columns: 1fr;
  }
}

.ai-hub-card {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--t);
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.ai-hub-card:hover {
  transform: translateY(-4px);
  border-color: var(--purple);
  box-shadow: 0 10px 25px rgba(124, 58, 237, 0.12);
}
.ai-hub-card.featured-hub-card {
  border-color: rgba(0, 229, 255, 0.25);
  box-shadow: 0 4px 20px rgba(0, 229, 255, 0.03);
}
.ai-hub-card.featured-hub-card:hover {
  border-color: var(--neon);
  box-shadow: 0 12px 30px rgba(0, 229, 255, 0.12);
}
.ai-hub-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}
.ai-hub-card-icon {
  font-size: 1.8rem;
  margin-right: 12px;
}
.ai-hub-card-tag {
  font-size: 0.72rem;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--border);
  color: var(--text-muted);
}
.ai-hub-card.featured-hub-card .ai-hub-card-tag {
  background: var(--neon-dim);
  color: var(--neon);
  border: 1px solid rgba(0, 229, 255, 0.15);
}
.ai-hub-card h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
  color: var(--text);
}
.ai-hub-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}
.ai-hub-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--neon);
}
.ai-hub-card-footer span {
  transition: transform var(--t);
}
.ai-hub-card:hover .ai-hub-card-footer span {
  transform: translateX(4px);
}

.ai-no-results {
  text-align: center;
  padding: 40px;
  grid-column: 1 / -1;
  color: var(--text-muted);
  font-size: 1.1rem;
}