/* ================================================================
   AI Assistant Panel Styles
   Author: Hub Collective AI Integration
   Purpose: Real-time writing suggestions and content quality analysis
   ================================================================ */

.ai-assistant-panel {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: min(360px, calc(100vw - 28px));
  max-height: min(74dvh, 680px);
  margin: 0;
  background: #f8fbff;
  border: 1px solid #c5d6f6;
  border-radius: 12px;
  overflow: hidden;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  box-shadow: 0 18px 30px rgba(15, 23, 42, 0.16);
  backdrop-filter: none;
  color: #0f172a;
  z-index: 10020;
  animation: slideInRight 0.3s ease-out;
}

.ai-assistant-panel.hidden {
  display: none;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.ai-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  background: linear-gradient(135deg, #e6f0ff, #d9e9ff);
  border-bottom: 1px solid #bfd3f3;
}

.ai-panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #1d4ed8;
}

.ai-panel-title i {
  font-size: 14px;
  animation: spin 2s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.ai-panel-close {
  background: none;
  border: none;
  font-size: 24px;
  color: #334155;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.ai-panel-close:hover {
  background: rgba(37, 99, 235, 0.12);
  color: #0f172a;
}

.ai-panel-content {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 16px;
  max-height: calc(min(74dvh, 680px) - 58px);
  overflow-y: auto;
  overflow-x: hidden;
  background: #f8fbff;
}

.ai-assistant-launcher {
  position: fixed;
  right: 20px;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  z-index: 10020;
  border: 1px solid rgba(99, 102, 241, 0.32);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.94), rgba(59, 130, 246, 0.94));
  color: #ffffff;
  border-radius: 999px;
  min-height: 42px;
  padding: 10px 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  box-shadow: 0 10px 18px rgba(37, 99, 235, 0.24);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.ai-assistant-launcher:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 22px rgba(37, 99, 235, 0.28);
}

.ai-assistant-launcher.hidden {
  display: none;
}

.ai-panel-content::-webkit-scrollbar {
  width: 6px;
}

.ai-panel-content::-webkit-scrollbar-track {
  background: rgba(99, 102, 241, 0.05);
  border-radius: 3px;
}

.ai-panel-content::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.2);
  border-radius: 3px;
}

.ai-panel-content::-webkit-scrollbar-thumb:hover {
  background: rgba(99, 102, 241, 0.4);
}

/* ================================================================
   AI Section Styles
   ================================================================ */

.ai-section {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #d7e3f8;
}

.ai-section:last-child {
  border-bottom: none;
}

.ai-section.hidden {
  display: none;
}

.ai-section-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #334155;
  margin: 0 0 12px 0;
  padding: 0;
}

.ai-section-inline {
  margin: 0 0 10px;
  border: 1px solid #bfd3f3;
  border-radius: 10px;
  background: linear-gradient(135deg, #f8fbff, #edf5ff);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.ai-section-inline.hidden {
  display: none;
}

.ai-section-inline__summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  cursor: pointer;
  list-style: none;
}

.ai-section-inline__summary::-webkit-details-marker {
  display: none;
}

.ai-section-inline__title {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #1d4ed8;
}

.ai-section-inline__meta {
  font-size: 10px;
  color: #64748b;
  font-weight: 600;
}

.ai-section-inline__list {
  gap: 4px;
  padding: 0 10px 10px;
}

.suggestion-item--inline {
  padding: 8px;
  font-size: 12px;
}

.suggestion-item--inline .suggestion-icon {
  font-size: 12px;
}

/* ================================================================
   Quality Score Display
   ================================================================ */

.quality-score-container {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
}

.quality-score-display {
  display: flex;
  gap: 16px;
  align-items: center;
  width: 100%;
}

.quality-score-circle {
  position: relative;
  width: 80px;
  height: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
  border: 2px solid rgba(99, 102, 241, 0.2);
  flex-shrink: 0;
}

.quality-score-circle.quality-score-good {
  border-color: rgba(34, 197, 94, 0.4);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.08), rgba(34, 197, 94, 0.04));
}

.quality-score-circle.quality-score-fair {
  border-color: rgba(249, 115, 22, 0.4);
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.08), rgba(249, 115, 22, 0.04));
}

.quality-score-circle.quality-score-poor {
  border-color: rgba(239, 68, 68, 0.4);
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(239, 68, 68, 0.04));
}

.quality-score-number {
  font-size: 28px;
  font-weight: 700;
  color: #0f172a;
}

.quality-score-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  color: #475569;
  margin-top: 2px;
}

.quality-metrics {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.quality-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-label {
  font-size: 11px;
  font-weight: 600;
  color: #475569;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.metric-bar {
  height: 6px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 3px;
  overflow: hidden;
}

.metric-fill {
  height: 100%;
  background: var(--primary-gradient);
  border-radius: 3px;
  transition: width 0.3s ease;
  width: 0%;
}

.metric-value {
  font-size: 11px;
  font-weight: 700;
  color: #0f172a;
}

.quality-meta {
  display: flex;
  justify-content: center;
  margin-top: 12px;
  font-size: 14px;
  color: #334155;
  font-weight: 600;
}

.reading-time {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ================================================================
   Suggestions List
   ================================================================ */

.suggestions-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.suggestion-placeholder {
  font-size: 12px;
  color: #64748b;
  font-style: italic;
  margin: 0;
  padding: 8px;
  text-align: center;
}

.suggestion-item {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 10px;
  background: #eef4ff;
  border-left: 3px solid #3b82f6;
  border-radius: 4px;
  font-size: 13px;
  color: #0f172a;
  font-weight: 600;
  line-height: 1.4;
}

.ai-link-btn {
  border: 1px solid #93c5fd;
  background: #eff6ff;
  color: #1d4ed8;
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  padding: 6px 10px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.ai-link-btn:hover {
  background: #dbeafe;
  border-color: #60a5fa;
  transform: translateY(-1px);
}

.ai-link-btn--inline {
  margin-left: auto;
  white-space: nowrap;
  align-self: center;
}

.ai-action-hint {
  margin: 10px 0 0;
  padding: 8px 10px;
  border-radius: 8px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.35;
}

.ai-image-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.ai-image-actions .ai-link-btn {
  width: 100%;
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 11px;
  text-align: left;
}

.suggestion-icon {
  font-size: 14px;
  flex-shrink: 0;
  color: #1d4ed8;
}

.suggestion-text {
  flex: 1;
}

.content-section.ai-updated-section {
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 35%, transparent);
  transition: box-shadow 0.35s ease;
}

/* ================================================================
   Title Suggestions
   ================================================================ */

.title-suggestions-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.title-suggestion-item {
  margin: 0;
  padding: 0;
}

.title-suggestion-btn {
  width: 100%;
  padding: 10px 12px;
  background: #eef4ff;
  border: 1px solid #bfdbfe;
  border-radius: 6px;
  font-size: 13px;
  color: #0f172a;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  transition: all 0.2s ease;
  font-family: inherit;
}

.title-suggestion-btn:hover {
  background: #dbeafe;
  border-color: #60a5fa;
  transform: translateX(2px);
}

.title-suggestion-btn:active {
  transform: translateX(0);
}

.suggestion-reason {
  font-size: 11px;
  color: #475569;
  font-weight: 600;
}

/* ================================================================
   Tags List
   ================================================================ */

.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-item {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  background: #dbeafe;
  border: 1px solid #93c5fd;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: #1e3a8a;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.tag-item:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(30, 58, 138, 0.14);
}

.tag-text {
  display: inline-block;
}

/* ================================================================
   Loading State
   ================================================================ */

.ai-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  color: #334155;
  font-size: 13px;
  font-weight: 600;
}

.spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid rgba(99, 102, 241, 0.2);
  border-top-color: rgba(99, 102, 241, 0.6);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ================================================================
   Responsive Adjustments
   ================================================================ */

@media (max-width: 1280px) {
  .ai-assistant-panel {
    width: min(340px, calc(100vw - 24px));
    right: 14px;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  }
}

@media (max-width: 1024px) {
  .ai-assistant-panel {
    right: 14px;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
    width: min(320px, calc(100vw - 24px));
    max-height: min(72dvh, 620px);
  }

  .ai-assistant-launcher {
    right: 14px;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  }
}

@media (max-width: 768px) {
  .ai-assistant-panel {
    left: 8px;
    right: 8px;
    bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    width: auto;
    max-height: min(68dvh, 560px);
    border-radius: 14px;
  }

  .ai-panel-header {
    padding: 12px 14px;
  }

  .ai-panel-title {
    font-size: 12px;
    letter-spacing: 0.04em;
  }

  .ai-panel-content {
    padding: 12px;
  }

  .ai-section {
    margin-bottom: 12px;
    padding-bottom: 12px;
  }

  .ai-section-title {
    font-size: 12px;
    margin-bottom: 8px;
  }

  .quality-score-display {
    flex-direction: column;
    gap: 10px;
  }

  .quality-score-circle {
    width: 64px;
    height: 64px;
  }

  .quality-score-number {
    font-size: 20px;
  }

  .suggestion-item,
  .title-suggestion-btn {
    font-size: 12px;
    padding: 9px 10px;
  }

  .suggestion-item {
    flex-wrap: wrap;
  }

  .ai-link-btn--inline {
    margin-left: 0;
  }

  .ai-image-actions {
    grid-template-columns: 1fr;
  }

  .tag-item {
    font-size: 11px;
    padding: 5px 10px;
  }

  .ai-assistant-launcher {
    left: 8px;
    right: 8px;
    bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    width: auto;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .ai-assistant-panel {
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-height: min(66dvh, 520px);
    border-radius: 14px 14px 0 0;
    border-left: none;
    border-right: none;
  }

  .ai-panel-content {
    padding: 10px;
    max-height: calc(min(66dvh, 520px) - 54px);
  }

  .quality-meta {
    font-size: 13px;
  }

  .ai-assistant-launcher {
    left: 8px;
    right: 8px;
    bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    min-height: 40px;
    font-size: 11px;
    padding: 8px 12px;
  }

  .ai-link-btn,
  .ai-image-actions .ai-link-btn {
    font-size: 10px;
    padding: 7px 9px;
  }
}

@media (max-height: 620px) {
  .ai-assistant-panel {
    max-height: min(84dvh, 520px);
  }

  .ai-panel-content {
    max-height: calc(min(84dvh, 520px) - 58px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ai-assistant-panel,
  .ai-assistant-launcher,
  .title-suggestion-btn,
  .metric-fill,
  .spinner {
    animation: none !important;
    transition: none !important;
  }
}

/* ================================================================
   Accessibility
   ================================================================ */

.ai-panel-close:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.title-suggestion-btn:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: -2px;
}

/* ================================================================
   Dark/Light Mode Support
   ================================================================ */

:root[data-theme="dark"] .ai-assistant-panel {
  background: #0f172a;
  border-color: #334155;
  color: #e2e8f0;
}

:root[data-theme="light"] .ai-assistant-panel {
  background: #f8fbff;
}

:root[data-theme="dark"] .ai-panel-header {
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border-bottom-color: #334155;
}

:root[data-theme="dark"] .ai-panel-title {
  color: #93c5fd;
}

:root[data-theme="dark"] .ai-panel-content {
  background: #0f172a;
}

:root[data-theme="dark"] .ai-section {
  border-bottom-color: #1e293b;
}

:root[data-theme="dark"] .ai-section-title,
:root[data-theme="dark"] .metric-label,
:root[data-theme="dark"] .quality-score-label,
:root[data-theme="dark"] .suggestion-reason,
:root[data-theme="dark"] .ai-loading,
:root[data-theme="dark"] .quality-meta,
:root[data-theme="dark"] .suggestion-placeholder {
  color: #94a3b8;
}

:root[data-theme="dark"] .quality-score-number,
:root[data-theme="dark"] .metric-value,
:root[data-theme="dark"] .suggestion-item,
:root[data-theme="dark"] .title-suggestion-btn {
  color: #e2e8f0;
}

:root[data-theme="dark"] .suggestion-item {
  background: #1e293b;
  border-left-color: #60a5fa;
}

:root[data-theme="dark"] .title-suggestion-btn {
  background: #1e293b;
  border-color: #334155;
}

:root[data-theme="dark"] .title-suggestion-btn:hover {
  background: #243244;
  border-color: #60a5fa;
}

:root[data-theme="dark"] .tag-item {
  background: #1e3a8a;
  border-color: #3b82f6;
  color: #dbeafe;
}

:root[data-theme="dark"] .ai-link-btn {
  background: #1e293b;
  border-color: #334155;
  color: #93c5fd;
}

:root[data-theme="dark"] .ai-link-btn:hover {
  background: #243244;
  border-color: #60a5fa;
}

:root[data-theme="dark"] .ai-action-hint {
  background: #1e293b;
  color: #cbd5e1;
}