/**
 * GOVERNANCE NOTICE
 * This file represents planned functionality documented under Phase F governance framework.
 * Current state: Post-Gate-4C / Pre-Gate-5
 * Status: NO active AI features in this repository
 * Layer-2 is presentation-only, non-executable, display-only
 * Any AI-assisted interface is not active under the current governance state.
 */

/**
 * TRIZEL AI Assistant UI Component
 * Phase-F.1: "Talk to TRIZEL-AI" UI Shell
 * 
 * Layer-2 Presentation Repository
 * UI-only, no backend coupling, non-authoritative
 * Governed under PHASE_F_GOVERNANCE.md
 */

/* ========================================
   AI Assistant Floating Button
   ======================================== */

.trizel-ai-button {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  
  /* Button styling */
  background: linear-gradient(135deg, #0969da 0%, #0550ae 100%);
  color: white;
  border: none;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  
  /* Interactive states */
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(9, 105, 218, 0.3),
              0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Typography */
  font-size: 24px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  
  /* Accessibility */
  outline-offset: 2px;
}

.trizel-ai-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(9, 105, 218, 0.4),
              0 4px 8px rgba(0, 0, 0, 0.15);
  background: linear-gradient(135deg, #0a73ec 0%, #0656c2 100%);
}

.trizel-ai-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(9, 105, 218, 0.3);
}

.trizel-ai-button:focus-visible {
  outline: 3px solid #0969da;
  outline-offset: 4px;
}

/* Icon inside button */
.trizel-ai-button-icon {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .trizel-ai-button {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px;
    height: 56px;
  }
}

/* ========================================
   AI Assistant Modal/Dialog
   ======================================== */

.trizel-ai-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  
  /* Backdrop */
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  
  /* Layout */
  display: none; /* Hidden by default */
  align-items: center;
  justify-content: center;
  padding: 1rem;
  
  /* Animation */
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

.trizel-ai-modal.active {
  display: flex;
  opacity: 1;
}

.trizel-ai-modal-content {
  background: var(--color-surface, #ffffff);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 800px;
  width: 100%;
  max-height: 85vh;
  
  /* Layout */
  display: flex;
  flex-direction: column;
  
  /* Animation */
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.trizel-ai-modal.active .trizel-ai-modal-content {
  transform: scale(1);
}

/* ========================================
   Modal Header
   ======================================== */

.trizel-ai-modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border, #d0d7de);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.trizel-ai-modal-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text, #1f2328);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.trizel-ai-modal-title-icon {
  width: 24px;
  height: 24px;
  color: #0969da;
}

.trizel-ai-modal-close {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 6px;
  color: var(--color-text-medium, #636c76);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.trizel-ai-modal-close:hover {
  background: var(--color-bg-hover, #f6f8fa);
}

.trizel-ai-modal-close:focus-visible {
  outline: 2px solid #0969da;
  outline-offset: 2px;
}

.trizel-ai-modal-close-icon {
  width: 20px;
  height: 20px;
}

/* ========================================
   Modal Body
   ======================================== */

.trizel-ai-modal-body {
  padding: 1.5rem;
  flex: 1;
  overflow-y: auto;
}

/* Governance Notice */
.trizel-ai-governance-notice {
  background: #fff8c5;
  border: 1px solid #d4a72c;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1.5rem;
}

.trizel-ai-governance-notice-title {
  font-weight: 600;
  color: #735c0f;
  margin: 0 0 0.5rem 0;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.trizel-ai-governance-notice-text {
  font-size: 0.875rem;
  color: #735c0f;
  margin: 0;
  line-height: 1.5;
}

.trizel-ai-governance-notice-text strong {
  font-weight: 600;
}

/* AI Assistant Content */
.trizel-ai-content {
  color: var(--color-text, #1f2328);
  line-height: 1.6;
}

.trizel-ai-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 1rem 0;
  color: var(--color-text, #1f2328);
}

.trizel-ai-content p {
  margin: 0 0 1rem 0;
}

.trizel-ai-content ul {
  margin: 0 0 1rem 0;
  padding-left: 1.5rem;
}

.trizel-ai-content li {
  margin-bottom: 0.5rem;
}

.trizel-ai-content a {
  color: #0969da;
  text-decoration: none;
}

.trizel-ai-content a:hover {
  text-decoration: underline;
}

/* Status Badge */
.trizel-ai-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #ddf4ff;
  color: #0969da;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.trizel-ai-status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #0969da;
}

/* ========================================
   Modal Footer
   ======================================== */

.trizel-ai-modal-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--color-border, #d0d7de);
  background: var(--color-bg-subtle, #f6f8fa);
  border-radius: 0 0 12px 12px;
}

.trizel-ai-footer-text {
  font-size: 0.875rem;
  color: var(--color-text-medium, #636c76);
  margin: 0;
  text-align: center;
}

.trizel-ai-footer-text a {
  color: #0969da;
  text-decoration: none;
  font-weight: 500;
}

.trizel-ai-footer-text a:hover {
  text-decoration: underline;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 768px) {
  .trizel-ai-modal {
    padding: 0;
  }
  
  .trizel-ai-modal-content {
    max-width: 100%;
    max-height: 100vh;
    height: 100vh;
    border-radius: 0;
  }
  
  .trizel-ai-modal-header,
  .trizel-ai-modal-body,
  .trizel-ai-modal-footer {
    padding: 1rem;
  }
  
  .trizel-ai-modal-title {
    font-size: 1.125rem;
  }
}

/* ========================================
   RTL Support (Arabic)
   ======================================== */

[dir="rtl"] .trizel-ai-button {
  right: auto;
  left: 2rem;
}

@media (max-width: 768px) {
  [dir="rtl"] .trizel-ai-button {
    right: auto;
    left: 1.5rem;
  }
}

[dir="rtl"] .trizel-ai-content ul {
  padding-left: 0;
  padding-right: 1.5rem;
}

/* ========================================
   Print Styles
   ======================================== */

@media print {
  .trizel-ai-button,
  .trizel-ai-modal {
    display: none !important;
  }
}

/* ========================================
   Accessibility - Reduced Motion
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  .trizel-ai-button,
  .trizel-ai-modal,
  .trizel-ai-modal-content,
  .trizel-ai-modal-close {
    transition: none;
  }
  
  .trizel-ai-button:hover {
    transform: none;
  }
}

/* ========================================
   Dark Mode Support (if implemented)
   ======================================== */

@media (prefers-color-scheme: dark) {
  .trizel-ai-modal-content {
    background: #161b22;
    color: #c9d1d9;
  }
  
  .trizel-ai-modal-header {
    border-bottom-color: #30363d;
  }
  
  .trizel-ai-modal-title {
    color: #c9d1d9;
  }
  
  .trizel-ai-modal-close {
    color: #8b949e;
  }
  
  .trizel-ai-modal-close:hover {
    background: #21262d;
  }
  
  .trizel-ai-modal-footer {
    background: #0d1117;
    border-top-color: #30363d;
  }
  
  .trizel-ai-content {
    color: #c9d1d9;
  }
  
  .trizel-ai-content h3 {
    color: #c9d1d9;
  }
  
  .trizel-ai-footer-text {
    color: #8b949e;
  }
}