/**
 * Frontend styles for AI Blog Post Summarizer
 */

:root {
  --ai-sum-primary: #36c670;
  --ai-sum-primary-hover: #2eb363;
  --ai-sum-primary-light: #eafaf1;
  --ai-sum-btn-text: #0c1a38;
  --ai-sum-text: #1f2937;
  --ai-sum-text-muted: #6b7280;
  --ai-sum-bg: #ffffff;
  --ai-sum-card-bg: #f9fbfd;
  --ai-sum-border: #e6ebf1;
  --ai-sum-radius: 14px;
  --ai-sum-transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Container wrapper */
.ai-summary-container {
  position: relative;
  z-index: 25;
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  margin: 1.75rem 0 2rem 0;
  font-family: inherit;
  color: var(--ai-sum-text);
  box-sizing: border-box;
  clear: both;
}

.ai-summary-container *,
.ai-summary-container *::before,
.ai-summary-container *::after {
  box-sizing: inherit;
}

/* Top bar & Button */
.ai-summary-bar {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

/* Reference button design */
.ai-summary-btn {
  position: relative;
  z-index: 26;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1.15rem;
  padding: 0.75rem 2rem;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: var(--ai-sum-btn-text);
  background-color: #ffffff;
  border: 1.5px solid #e1e7f0;
  border-radius: 9999px;
  cursor: pointer;
  transition: var(--ai-sum-transition);
  box-shadow: 0 10px 30px -4px rgba(0, 0, 0, 0.06), 0 3px 8px -2px rgba(0, 0, 0, 0.03);
  text-decoration: none;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  pointer-events: auto !important;
}

.ai-summary-btn:hover {
  background-color: #ffffff;
  color: var(--ai-sum-btn-text);
  border-color: #c2eed5;
  box-shadow: 0 14px 34px -4px rgba(54, 198, 112, 0.16), 0 4px 12px -2px rgba(0, 0, 0, 0.04);
  transform: translateY(-2px);
}

.ai-summary-btn:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.ai-summary-btn.is-active {
  border-color: var(--ai-sum-primary);
  box-shadow: 0 6px 20px rgba(54, 198, 112, 0.15);
}

.ai-summary-btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ai-sum-primary);
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.ai-summary-btn-icon svg {
  display: block;
  stroke: var(--ai-sum-primary);
}

.ai-summary-btn:hover .ai-summary-btn-icon {
  transform: scale(1.08);
}

.ai-summary-btn-text {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ai-sum-btn-text);
}

.ai-summary-btn-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ai-sum-primary);
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.ai-summary-btn-arrow svg {
  display: block;
  stroke: var(--ai-sum-primary);
}

.ai-summary-btn:hover .ai-summary-btn-arrow {
  transform: translateX(4px);
}

.ai-summary-btn.is-active .ai-summary-btn-arrow {
  transform: rotate(90deg);
}

.ai-summary-btn.is-active:hover .ai-summary-btn-arrow {
  transform: rotate(90deg) translateY(-2px);
}

/* Summary Card */
.ai-summary-card {
  margin-top: 1.25rem;
  background-color: var(--ai-sum-card-bg);
  border: 1px solid var(--ai-sum-border);
  border-left: 4px solid var(--ai-sum-primary);
  border-radius: var(--ai-sum-radius);
  overflow: hidden;
  box-shadow: 0 6px 24px -2px rgba(0, 0, 0, 0.05);
  animation: aiSummaryFadeDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes aiSummaryFadeDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ai-summary-card-inner {
  padding: 1.35rem 1.6rem;
}

/* Card Header */
.ai-summary-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--ai-sum-border);
  margin-bottom: 1rem;
}

.ai-summary-card-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: #111827;
}

.ai-summary-card-title svg {
  color: var(--ai-sum-primary);
  flex-shrink: 0;
}

.ai-summary-card-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.ai-summary-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.35rem 0.65rem;
  background: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ai-sum-text-muted);
  cursor: pointer;
  transition: var(--ai-sum-transition);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  pointer-events: auto !important;
}

.ai-summary-action-btn:hover {
  background: #f3f4f6;
  color: #111827;
  border-color: #9ca3af;
}

/* Card Body & Bullets */
.ai-summary-card-body {
  font-size: 0.975rem;
  line-height: 1.65;
  color: #374151;
}

.ai-summary-card-body ul {
  margin: 0;
  padding-left: 1.35rem;
  list-style-type: none;
}

.ai-summary-card-body ul li {
  position: relative;
  margin-bottom: 0.75rem;
  padding-left: 0.5rem;
}

.ai-summary-card-body ul li:last-child {
  margin-bottom: 0;
}

.ai-summary-card-body ul li::before {
  content: "•";
  color: var(--ai-sum-primary);
  font-size: 1.5rem;
  position: absolute;
  left: -0.95rem;
  top: -0.15rem;
  line-height: 1;
}

.ai-summary-card-body ul li strong {
  color: #111827;
  font-weight: 600;
}

/* Placeholder & Spinner */
.ai-summary-placeholder {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 0;
  color: var(--ai-sum-text-muted);
  font-style: italic;
}

.ai-spinner {
  width: 22px;
  height: 22px;
  border: 2.5px solid rgba(54, 198, 112, 0.25);
  border-top-color: var(--ai-sum-primary);
  border-radius: 50%;
  animation: aiSpin 0.75s linear infinite;
  flex-shrink: 0;
}

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

/* Error Alert */
.ai-summary-error {
  padding: 0.85rem 1rem;
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
  border-radius: 8px;
  font-size: 0.9rem;
}

/* Footer */
.ai-summary-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.15rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--ai-sum-border);
  font-size: 0.775rem;
  color: var(--ai-sum-text-muted);
}

.ai-provider-info {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.ai-reading-tip {
  font-weight: 600;
  color: #4b5563;
  background-color: #e5e7eb;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

/* Responsive */
@media (max-width: 1024px) {
  .ai-summary-container {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
  }
  .ai-summary-bar {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    width: 100% !important;
    height: auto !important;
  }
  .ai-summary-btn {
    display: inline-flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    width: auto !important;
    height: auto !important;
  }
  .ai-summary-btn-icon,
  .ai-summary-btn-arrow {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
  }
  .ai-summary-btn-icon svg,
  .ai-summary-btn-arrow svg {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
  }
  .ai-summary-btn-text {
    display: inline-block !important;
    visibility: visible !important;
    opacity: 1 !important;
  }
}

@media (max-width: 640px) {
  .ai-summary-btn {
    padding: 0.65rem 1.4rem;
    font-size: 1rem;
    gap: 0.85rem;
  }
  .ai-summary-btn-text {
    font-size: 1rem;
  }
  .ai-summary-card-inner {
    padding: 1rem;
  }
  .ai-summary-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .ai-summary-card-actions {
    align-self: flex-end;
  }
  .ai-summary-card-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }
}