/* ============================================================
   STORYFRAME STUDIO — Page & Layout Styles
   ============================================================ */

/* ── App Shell ─────────────────────────────────────────────── */
.app-shell {
  display: flex;
  height: 100vh;
  overflow: hidden;
  position: relative;
}

/* Animated background mesh */
.app-shell::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 600px 400px at 15% 20%, hsla(250,80%,35%,0.08), transparent),
    radial-gradient(ellipse 500px 500px at 80% 70%, hsla(175,60%,30%,0.06), transparent),
    radial-gradient(ellipse 800px 300px at 50% 0%, hsla(250,60%,20%,0.1), transparent);
  pointer-events: none;
}

/* ── Sidebar ───────────────────────────────────────────────── */
.sidebar {
  width: var(--sf-sidebar-width);
  background: var(--sf-bg-primary);
  border-right: 1px solid var(--sf-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
  transition: width var(--sf-duration-slow) var(--sf-ease);
}

.sidebar-brand {
  padding: var(--sf-space-5) var(--sf-space-5);
  border-bottom: 1px solid var(--sf-border);
  display: flex;
  align-items: center;
  gap: var(--sf-space-3);
  height: var(--sf-header-height);
}

.sidebar-brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--sf-accent), var(--sf-accent2));
  border-radius: var(--sf-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sidebar-brand-icon svg { width: 18px; height: 18px; color: white; }

.sidebar-brand-text {
  font-size: var(--sf-text-md);
  font-weight: 700;
  background: linear-gradient(135deg, var(--sf-accent), var(--sf-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.sidebar-nav {
  flex: 1;
  padding: var(--sf-space-3);
  overflow-y: auto;
}

.sidebar-section-title {
  font-size: var(--sf-text-xs);
  font-weight: 700;
  color: var(--sf-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--sf-space-4) var(--sf-space-3) var(--sf-space-2);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--sf-space-3);
  padding: var(--sf-space-2) var(--sf-space-3);
  border-radius: var(--sf-radius-md);
  color: var(--sf-text-secondary);
  font-size: var(--sf-text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--sf-duration-fast) var(--sf-ease);
  border: 1px solid transparent;
  user-select: none;
}
.sidebar-item:hover {
  background: var(--sf-bg-hover);
  color: var(--sf-text-primary);
}
.sidebar-item.active {
  background: var(--sf-accent-surface);
  color: var(--sf-accent);
  border-color: var(--sf-border-accent);
}
.sidebar-item svg { width: 18px; height: 18px; flex-shrink: 0; }

.sidebar-footer {
  padding: var(--sf-space-3);
  border-top: 1px solid var(--sf-border);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--sf-space-3);
  padding: var(--sf-space-2) var(--sf-space-3);
  border-radius: var(--sf-radius-md);
  cursor: pointer;
  transition: background var(--sf-duration-fast);
}
.sidebar-user:hover { background: var(--sf-bg-hover); }

.sidebar-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--sf-radius-full);
  background: var(--sf-bg-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--sf-text-xs);
  font-weight: 700;
  color: var(--sf-accent);
  flex-shrink: 0;
  overflow: hidden;
}
.sidebar-user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sidebar-user-info {
  flex: 1;
  min-width: 0;
}
.sidebar-user-name {
  font-size: var(--sf-text-sm);
  font-weight: 600;
  color: var(--sf-text-primary);
}
.sidebar-user-tier {
  font-size: var(--sf-text-xs);
  color: var(--sf-text-tertiary);
}

/* ── Main Content ──────────────────────────────────────────── */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.main-header {
  height: var(--sf-header-height);
  border-bottom: 1px solid var(--sf-border);
  background: rgba(8, 9, 13, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--sf-space-6);
  flex-shrink: 0;
  z-index: 5;
}

.main-header-left {
  display: flex;
  align-items: center;
  gap: var(--sf-space-4);
}

.main-header-title {
  font-size: var(--sf-text-lg);
  font-weight: 700;
  color: var(--sf-text-primary);
  letter-spacing: -0.01em;
}

.main-header-right {
  display: flex;
  align-items: center;
  gap: var(--sf-space-3);
}

.main-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--sf-space-8);
}

/* ── Page: Storyboard / Studio ─────────────────────────────── */
.page { display: none; height: 100%; flex-direction: column; overflow: hidden; }
.page.active { display: flex; }

.workspace {
  max-width: var(--sf-panel-max);
  width: 100%;
  margin: 0 auto;
  flex: 1;
  overflow-y: auto;
  padding: var(--sf-space-8) var(--sf-space-6);
}

/* Prompt Area */
.prompt-card {
  padding: var(--sf-space-6);
  margin-bottom: var(--sf-space-6);
}

.prompt-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--sf-space-3);
}

.prompt-label-text {
  font-size: var(--sf-text-sm);
  font-weight: 600;
  color: var(--sf-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.prompt-textarea {
  width: 100%;
  min-height: 100px;
  padding: var(--sf-space-4);
  background: var(--sf-bg-primary);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-md);
  color: var(--sf-text-primary);
  font-family: var(--sf-font-sans);
  font-size: var(--sf-text-base);
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: border-color var(--sf-duration) var(--sf-ease),
              box-shadow var(--sf-duration) var(--sf-ease);
}
.prompt-textarea:focus {
  border-color: var(--sf-accent);
  box-shadow: 0 0 0 3px var(--sf-accent-glow);
}
.prompt-textarea::placeholder { color: var(--sf-text-muted); }

.prompt-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--sf-space-4);
  gap: var(--sf-space-3);
}

.prompt-selectors {
  display: flex;
  gap: var(--sf-space-3);
  flex-wrap: wrap;
  align-items: center;
}

.selector-group {
  display: flex;
  flex-direction: column;
  gap: var(--sf-space-1);
}
.selector-label {
  font-size: var(--sf-text-xs);
  color: var(--sf-text-tertiary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Panel Grid (Storyboard Output) ────────────────────────── */
.panel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sf-space-5);
  padding-bottom: var(--sf-space-8);
}

.panel-card {
  border-radius: var(--sf-radius-lg);
  overflow: hidden;
  background: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  animation: fadeInUp 0.5s var(--sf-ease) both;
}

.panel-card-img {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--sf-bg-tertiary);
}

.panel-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.panel-card-img img.loaded { opacity: 1; }

.panel-card-badge {
  position: absolute;
  top: var(--sf-space-3);
  left: var(--sf-space-3);
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(8px);
  padding: 3px 10px;
  border-radius: var(--sf-radius-sm);
  font-size: var(--sf-text-xs);
  font-weight: 800;
  color: white;
  letter-spacing: 0.04em;
  z-index: 2;
  border: 1px solid rgba(255,255,255,0.1);
}

.panel-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8,9,13,0.9) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
  display: flex;
  align-items: flex-end;
  padding: var(--sf-space-4);
}
.panel-card:hover .panel-card-overlay { opacity: 1; }

.panel-card-actions {
  display: flex;
  gap: var(--sf-space-2);
}

.panel-card-text {
  padding: var(--sf-space-4);
  font-size: var(--sf-text-sm);
  color: var(--sf-text-secondary);
  line-height: 1.6;
  min-height: 60px;
}

/* ── Image Studio ──────────────────────────────────────────── */
.studio-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--sf-space-6);
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--sf-space-8) var(--sf-space-6);
  height: 100%;
  overflow: hidden;
}

.studio-canvas {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-xl);
  overflow: hidden;
  position: relative;
  min-height: 400px;
}

.studio-canvas-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sf-space-4);
  color: var(--sf-text-muted);
  text-align: center;
  padding: var(--sf-space-8);
}
.studio-canvas-empty svg { width: 48px; height: 48px; opacity: 0.4; }

.studio-canvas img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--sf-radius-md);
}

.studio-sidebar-inner {
  overflow-y: auto;
  padding: var(--sf-space-5);
  display: flex;
  flex-direction: column;
  gap: var(--sf-space-5);
}

.studio-field {
  display: flex;
  flex-direction: column;
  gap: var(--sf-space-2);
}
.studio-field-label {
  font-size: var(--sf-text-xs);
  font-weight: 700;
  color: var(--sf-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.studio-dimensions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sf-space-2);
}

/* ── Gallery ───────────────────────────────────────────────── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--sf-space-4);
  padding-bottom: var(--sf-space-8);
}

.gallery-item {
  border-radius: var(--sf-radius-lg);
  overflow: hidden;
  background: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  cursor: pointer;
  transition: all var(--sf-duration) var(--sf-ease);
  animation: fadeInUp 0.4s var(--sf-ease) both;
}
.gallery-item:hover {
  border-color: var(--sf-border-accent);
  transform: translateY(-2px);
  box-shadow: var(--sf-shadow-lg);
}

.gallery-item-img {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--sf-bg-tertiary);
  position: relative;
}
.gallery-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery-item:hover .gallery-item-img img { transform: scale(1.04); }

.gallery-item-meta {
  padding: var(--sf-space-3);
}
.gallery-item-model {
  font-size: var(--sf-text-xs);
  color: var(--sf-text-tertiary);
  font-weight: 600;
}
.gallery-item-prompt {
  font-size: var(--sf-text-xs);
  color: var(--sf-text-muted);
  margin-top: 2px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.gallery-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sf-space-4);
  color: var(--sf-text-muted);
  padding: var(--sf-space-16) 0;
  text-align: center;
}
.gallery-empty svg { width: 48px; height: 48px; opacity: 0.3; }

/* ── Settings Page ─────────────────────────────────────────── */
.settings-grid {
  display: grid;
  gap: var(--sf-space-6);
  max-width: 640px;
}

.settings-section {
  padding: var(--sf-space-6);
}

.settings-title {
  font-size: var(--sf-text-lg);
  font-weight: 700;
  margin-bottom: var(--sf-space-1);
}

.settings-desc {
  font-size: var(--sf-text-sm);
  color: var(--sf-text-tertiary);
  margin-bottom: var(--sf-space-5);
}

/* ── Empty / Loading States ────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--sf-space-16) var(--sf-space-8);
  gap: var(--sf-space-4);
  color: var(--sf-text-muted);
  flex: 1;
}
.empty-state svg { width: 56px; height: 56px; opacity: 0.3; animation: float 3s ease-in-out infinite; }
.empty-state h3 { font-size: var(--sf-text-lg); color: var(--sf-text-tertiary); font-weight: 600; }
.empty-state p { font-size: var(--sf-text-sm); max-width: 360px; }

.loading-state {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sf-space-4);
  padding: var(--sf-space-16) 0;
  flex: 1;
}
.loading-state.active { display: flex; }

.loading-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--sf-border);
  border-top-color: var(--sf-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-text {
  font-size: var(--sf-text-sm);
  color: var(--sf-accent);
  font-weight: 500;
}

.loading-sub {
  font-size: var(--sf-text-xs);
  color: var(--sf-text-muted);
  animation: pulse-glow 2s ease-in-out infinite;
  background: transparent;
  box-shadow: none;
}

/* ── Lightbox ──────────────────────────────────────────────── */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 1500;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  cursor: zoom-out;
}
.lightbox-overlay.active { opacity: 1; visibility: visible; }
.lightbox-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--sf-radius-lg);
  box-shadow: var(--sf-shadow-xl);
}

/* ── Key Status Indicator ──────────────────────────────────── */
.key-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: var(--sf-radius-full);
  font-size: var(--sf-text-xs);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--sf-duration-fast);
}
.key-status.connected {
  background: var(--sf-success-dim);
  color: var(--sf-success);
}
.key-status.disconnected {
  background: var(--sf-error-dim);
  color: var(--sf-error);
}
.key-status:hover { filter: brightness(1.2); }

.key-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ── Balance Widget ────────────────────────────────────────── */
.balance-pill {
  display: flex;
  align-items: center;
  gap: var(--sf-space-2);
  padding: 3px 12px;
  background: var(--sf-bg-elevated);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-full);
  font-size: var(--sf-text-xs);
  font-weight: 600;
  color: var(--sf-text-secondary);
}
.balance-pill svg { width: 14px; height: 14px; color: var(--sf-warning); }

/* ── Mobile Responsive ─────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main-body { padding: var(--sf-space-4); }
  .panel-grid { grid-template-columns: 1fr; }
  .studio-layout { grid-template-columns: 1fr; }
  .prompt-controls { flex-direction: column; align-items: stretch; }
  .prompt-selectors { flex-direction: column; }
}

@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}