/* ============================================================================
   SLIDES VIEWER - PDF Viewer with Contextual Chat
   Updated to match new site design
   ============================================================================ */

/* Container fills viewport below navbar */
.slides-page-container {
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-subtle, #f8fafc);
}

/* Week Selector Bar */
.slides-week-selector {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--color-bg, #fff);
  border-bottom: 1px solid var(--color-border, #e2e8f0);
  flex-shrink: 0;
}

.slides-week-selector label {
  font-weight: 600;
  color: var(--color-text, #0f172a);
}

.slides-week-selector select {
  flex: 1;
  max-width: 400px;
  padding: 8px 12px;
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 8px;
  font-size: 0.95rem;
  background: var(--color-bg, #fff);
  color: var(--color-text, #0f172a);
  cursor: pointer;
  transition: border-color 0.15s;
}

.slides-week-selector select:hover {
  border-color: var(--color-text-muted, #94a3b8);
}

.slides-week-selector select:focus {
  outline: none;
  border-color: var(--color-primary, #3b82f6);
}

/* Split Panel Layout */
.slides-split-panel {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* PDF Panel (Left) */
.slides-pdf-panel {
  flex: 1 1 60%;
  display: flex;
  flex-direction: column;
  background: #525659;
  min-width: 300px;
  max-width: calc(100% - 350px);
}

/* PDF Toolbar */
.slides-pdf-toolbar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  background: #3d4043;
  border-bottom: 1px solid #2d3033;
  flex-shrink: 0;
}

.slides-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s;
}

.slides-nav-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.slides-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.slides-page-info,
.slides-zoom-info {
  color: #fff;
  font-size: 0.9rem;
  min-width: 80px;
  text-align: center;
}

.slides-toolbar-separator {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, 0.2);
  margin: 0 8px;
}

/* PDF Canvas Container */
.slides-pdf-canvas-container {
  flex: 1;
  overflow: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 20px;
}

#pdf-canvas {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  background: #fff;
}

/* PDF Loading State */
.slides-pdf-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: #fff;
  padding: 40px;
}

.slides-pdf-loading.hidden {
  display: none;
}

.slides-loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--color-primary, #3b82f6);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Resize Handle */
.slides-resize-handle {
  width: 6px;
  background: var(--color-border, #e2e8f0);
  cursor: ew-resize;
  flex-shrink: 0;
  transition: background 0.15s;
}

.slides-resize-handle:hover {
  background: var(--color-primary, #3b82f6);
}

/* Chat Panel (Right) */
.slides-chat-panel {
  flex: 1 1 350px;
  display: flex;
  flex-direction: column;
  min-width: 320px;
  max-width: 60%;
  background: var(--color-bg, #fff);
  border-left: 1px solid var(--color-border, #e2e8f0);
}

/* Chat Header */
.slides-chat-header {
  background: var(--color-bg-subtle, #f8fafc);
  border-bottom: 1px solid var(--color-border, #e2e8f0);
  color: var(--color-text, #0f172a);
  padding: 14px 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.slides-chat-header h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

/* Style Selector */
.slides-style-selector {
  display: flex;
  gap: 4px;
}

.slides-style-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 8px;
  background: var(--color-bg, #fff);
  color: var(--color-text-secondary, #64748b);
  cursor: pointer;
  font-size: 0.75rem;
  transition: all 0.15s;
}

.slides-style-btn:hover {
  background: var(--color-bg-muted, #f1f5f9);
  border-color: var(--color-text-muted, #94a3b8);
}

.slides-style-btn.active {
  background: var(--color-primary, #3b82f6);
  color: #fff;
  border-color: var(--color-primary, #3b82f6);
  font-weight: 600;
}

.slides-style-btn .style-emoji {
  font-size: 0.9rem;
}

.slides-style-btn .style-label {
  display: none;
}

@media (min-width: 800px) {
  .slides-style-btn .style-label {
    display: inline;
  }
}

/* Context Banner */
.slides-context-banner {
  background: var(--color-primary-soft, #dbeafe);
  border-bottom: 1px solid var(--color-border, #e2e8f0);
  padding: 10px 16px;
  flex-shrink: 0;
}

.slides-context-week {
  font-size: 0.75rem;
  color: var(--color-primary, #3b82f6);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.slides-context-slide {
  font-size: 0.9rem;
  color: var(--color-text, #0f172a);
  font-weight: 500;
}

/* Messages Area */
.slides-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--color-bg-subtle, #f8fafc);
}

.slides-chat-welcome {
  text-align: center;
  color: var(--color-text-secondary, #64748b);
  padding: 30px 20px;
  line-height: 1.6;
}

.ai-disclaimer-banner {
  background: var(--color-accent-soft, #ffedd5);
  border-bottom: 1px solid var(--color-accent, #f97316);
  padding: 8px 16px;
  font-size: 0.8rem;
  color: var(--color-text, #0f172a);
  text-align: center;
  flex-shrink: 0;
}

/* Message Bubbles */
.slides-chat-message {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 12px;
  line-height: 1.5;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

.slides-chat-message.user {
  background: var(--color-primary, #3b82f6);
  color: #fff;
  margin-left: auto;
  border-bottom-right-radius: 4px;
}

.slides-chat-message.assistant {
  background: var(--color-bg, #fff);
  color: var(--color-text, #0f172a);
  margin-right: auto;
  border-bottom-left-radius: 4px;
  border: 1px solid var(--color-border, #e2e8f0);
}

.slides-chat-message.error {
  background: var(--color-error-soft, #fee2e2);
  color: var(--color-error, #ef4444);
  margin: 0 auto;
  text-align: center;
}

/* Typing Indicator */
.slides-typing-indicator {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
  background: var(--color-bg, #fff);
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 12px;
  width: fit-content;
}

.slides-typing-indicator span {
  width: 8px;
  height: 8px;
  background: var(--color-primary, #3b82f6);
  border-radius: 50%;
  animation: typing 1.4s infinite ease-in-out;
}

.slides-typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.slides-typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-8px); }
}

/* Input Area */
.slides-chat-input-area {
  display: flex;
  gap: 10px;
  padding: 12px 16px;
  background: var(--color-bg, #fff);
  border-top: 1px solid var(--color-border, #e2e8f0);
  flex-shrink: 0;
}

#chat-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 8px;
  font-size: 0.95rem;
  background: var(--color-bg, #fff);
  color: var(--color-text, #0f172a);
  transition: border-color 0.15s;
}

#chat-input:focus {
  outline: none;
  border-color: var(--color-primary, #3b82f6);
}

.slides-chat-send {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  border: none;
  background: var(--color-primary, #3b82f6);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  flex-shrink: 0;
}

.slides-chat-send:hover {
  background: var(--color-primary-hover, #2563eb);
}


/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 900px) {
  .slides-split-panel {
    flex-direction: column;
  }

  .slides-pdf-panel {
    flex: 0 0 50%;
    min-width: 100%;
  }

  .slides-resize-handle {
    display: none;
  }

  .slides-chat-panel {
    flex: 0 0 50%;
    min-width: 100%;
    max-width: 100%;
  }
}

@media (max-width: 600px) {
  .slides-week-selector {
    padding: 10px 12px;
  }

  .slides-week-selector label {
    display: none;
  }

  .slides-week-selector select {
    max-width: 100%;
  }

  .slides-pdf-toolbar {
    gap: 4px;
    padding: 8px 12px;
  }

  .slides-nav-btn {
    width: 32px;
    height: 32px;
  }

  .slides-page-info,
  .slides-zoom-info {
    font-size: 0.8rem;
    min-width: 60px;
  }

  .slides-pdf-canvas-container {
    padding: 10px;
  }
}

/* ============================================================================
   DARK MODE SUPPORT
   ============================================================================ */

[data-theme="dark"] .slides-page-container {
  background: var(--color-bg);
}

[data-theme="dark"] .slides-week-selector {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

[data-theme="dark"] .slides-week-selector select {
  background: var(--color-bg);
  border-color: var(--color-border);
  color: var(--color-text);
}

[data-theme="dark"] .slides-chat-panel {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

[data-theme="dark"] .slides-chat-header {
  background: var(--color-bg);
  border-color: var(--color-border);
}

[data-theme="dark"] .slides-context-banner {
  background: var(--color-primary-soft);
  border-color: var(--color-border);
}

[data-theme="dark"] .slides-chat-messages {
  background: var(--color-bg);
}

[data-theme="dark"] .slides-chat-message.assistant {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

[data-theme="dark"] .slides-chat-input-area {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

[data-theme="dark"] #chat-input {
  background: var(--color-bg);
  border-color: var(--color-border);
  color: var(--color-text);
}


[data-theme="dark"] .slides-resize-handle {
  background: var(--color-border);
}

/* Animation Warning */
.slides-animation-warning {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(249, 115, 22, 0.1);
  border-top: 1px solid rgba(249, 115, 22, 0.3);
  padding: 8px 16px;
  font-size: 0.8rem;
  color: #fff;
  text-align: center;
  flex-shrink: 0;
}

.slides-animation-warning span {
  flex: 1;
}

.slides-animation-warning strong {
  color: #fbbf24;
}

.slides-warning-close {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  flex-shrink: 0;
}

.slides-warning-close:hover {
  color: #fff;
}