/* ================================================================
   AI Lab Page — Styles
   ================================================================ */

/* ── Preset Chips ───────────────────────────────────────────── */
.preset-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
}

.preset-chips .prompt-chip {
  padding: 0.4rem 0.9rem;
  font-size: 0.78rem;
  background: rgba(127, 90, 240, 0.12);
  border: 1px solid rgba(127, 90, 240, 0.25);
  border-radius: 100px;
  color: var(--color-purple-light);
  cursor: pointer;
  transition: all 0.2s ease;
}

.preset-chips .prompt-chip:hover {
  background: rgba(127, 90, 240, 0.25);
  border-color: var(--color-purple-light);
  transform: translateY(-1px);
}

.lab-budget-text {
  margin-left: auto;
  opacity: 0.6;
  font-size: 0.75rem;
}

/* ── AI Status ──────────────────────────────────────────────── */
.ai-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: rgba(26, 10, 46, 0.7);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 0.8rem;
}

/* ── Lab Header ─────────────────────────────────────────────── */
.lab-header {
  margin-bottom: var(--space-xl);
}

/* ── Tabs ────────────────────────────────────────────────────── */
.lab-tabs {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-xl);
  border-bottom: 2px solid var(--border-color);
  overflow-x: auto;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-secondary);
  background: rgba(107, 63, 160, 0.08);
}

.tab-btn--active {
  color: var(--color-lime);
  border-bottom-color: var(--color-lime);
}

/* ── Tab Panels ──────────────────────────────────────────────── */
.tab-panel {
  display: none;
}

.tab-panel--active {
  display: block;
  animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Tool Panel ──────────────────────────────────────────────── */
.tool-panel {
  background: rgba(20, 17, 42, 0.5);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

.tool-panel-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.tool-panel-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

/* ── Shared Tool Styles ──────────────────────────────────────── */
.tool-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.tool-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.tool-textarea {
  width: 100%;
  background: rgba(13, 13, 26, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.875rem;
  padding: var(--space-md);
  resize: vertical;
  transition: border-color var(--transition-fast);
  line-height: 1.5;
}

.tool-textarea:focus {
  outline: none;
  border-color: var(--color-lime);
  box-shadow: 0 0 0 2px rgba(178, 212, 48, 0.15);
}

.tool-textarea--mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  word-break: break-all;
}

.tool-select,
.tool-input {
  width: 100%;
  background: rgba(13, 13, 26, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.875rem;
  padding: 0.6rem var(--space-md);
  transition: border-color var(--transition-fast);
}

.tool-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23b8a9d4' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.tool-select:focus,
.tool-input:focus {
  outline: none;
  border-color: var(--color-lime);
  box-shadow: 0 0 0 2px rgba(178, 212, 48, 0.15);
}

/* ── Tool Controls ───────────────────────────────────────────── */
.tool-controls {
  display: flex;
  align-items: flex-end;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.gen-group {
  display: flex;
  flex-direction: column;
}

.gen-group--fill {
  flex: 1;
}

.tool-btn {
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  white-space: nowrap;
}

/* ── Tool Output ─────────────────────────────────────────────── */
.tool-output-group {
  position: relative;
}

.tool-output {
  background: rgba(20, 17, 42, 0.9);
  border: 1px solid rgba(107, 63, 160, 0.4);
  border-radius: var(--radius-sm);
  padding: var(--space-md) var(--space-lg);
  min-height: 80px;
  color: var(--text-primary);
  font-size: 0.9rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}

.tool-output strong {
  color: var(--color-lime);
}

.tool-output code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(107, 63, 160, 0.15);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}

.tool-output pre {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(107, 63, 160, 0.3);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  overflow-x: auto;
  margin: var(--space-sm) 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.placeholder-text {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
}

/* ── Image Output ────────────────────────────────────────────── */
.image-output {
  background: rgba(20, 17, 42, 0.9);
  border: 1px solid rgba(107, 63, 160, 0.4);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-output img {
  max-width: 100%;
  border-radius: var(--radius-sm);
}

/* ── Vision Upload ───────────────────────────────────────────── */
.vision-upload-area {
  position: relative;
  background: rgba(13, 13, 26, 0.6);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.vision-upload-area:hover,
.vision-upload-area.drag-over {
  border-color: var(--color-lime);
  background: rgba(178, 212, 48, 0.03);
}

.vision-file-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.vision-upload-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--space-sm);
}

.vision-upload-placeholder p {
  color: var(--text-secondary);
  margin: var(--space-xs) 0;
}

.vision-upload-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.vision-preview {
  display: none;
  max-width: 100%;
  max-height: 300px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.vision-preview.visible {
  display: block;
}

/* ── Loading State ───────────────────────────────────────────── */
.tool-btn.loading {
  position: relative;
  color: transparent;
  pointer-events: none;
}

.tool-btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  top: 50%;
  left: 50%;
  margin: -8px 0 0 -8px;
}

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

/* ── Active Nav Link ─────────────────────────────────────────── */
.nav-link--active {
  color: var(--color-lime) !important;
}

/* .logo-link moved to style.css */

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .lab-tabs {
    gap: 0;
  }

  .tab-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.75rem;
  }

  .tool-panel {
    padding: var(--space-lg);
  }

  .tool-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .vision-upload-area {
    padding: var(--space-xl);
  }
}

/* ══ Torch-in-the-Dark — AI Lab glow effects ════════════════ */
.tab-btn:hover {
  text-shadow: 0 0 6px rgba(178, 212, 48, 0.4);
}
.tab-btn--active {
  box-shadow: 0 2px 0 var(--color-lime), 0 4px 12px rgba(178, 212, 48, 0.15);
}
.preset-chips .prompt-chip:hover {
  box-shadow: 0 0 10px rgba(107, 63, 160, 0.3);
  text-shadow: 0 0 4px rgba(255, 255, 255, 0.3);
}
.vision-upload-area:hover {
  border-color: var(--color-lime);
  box-shadow: inset 0 0 30px rgba(178, 212, 48, 0.05);
}