/* ==========================================================================
   Msarev AI Modules Stylesheet
   Supercharger / Revision style AI-Driven Reading Experience
   ========================================================================== */

/* 1. Global AI Spark Badge */
.msarev-ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--cs-radius-pill);
  background: linear-gradient(135deg, rgba(83, 56, 255, 0.12) 0%, rgba(139, 92, 246, 0.12) 100%);
  border: 1px solid rgba(83, 56, 255, 0.2);
  color: var(--cs-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.msarev-ai-badge svg {
  animation: aiSparkle 3s ease-in-out infinite;
}

@keyframes aiSparkle {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.85; }
  50% { transform: scale(1.15) rotate(15deg); opacity: 1; }
}

/* 2. Reading Progress Bar */
.msarev-reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, #5338ff 0%, #a855f7 50%, #ec4899 100%);
  z-index: 2005;
  transition: width 0.1s ease-out;
}

/* 3. AI Content Summary Card (Single Post) */
.msarev-ai-summary-box {
  background: linear-gradient(145deg, rgba(83, 56, 255, 0.04) 0%, rgba(255, 255, 255, 0.95) 100%);
  border: 1px solid rgba(83, 56, 255, 0.18);
  border-radius: var(--cs-radius-xl);
  padding: 28px 32px;
  margin: 32px 0 40px;
  box-shadow: var(--cs-shadow-sm);
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .msarev-ai-summary-box,
body[data-theme="dark"] .msarev-ai-summary-box {
  background: linear-gradient(145deg, rgba(123, 102, 255, 0.08) 0%, #1a1a2b 100%);
  border-color: rgba(123, 102, 255, 0.25);
}

.msarev-ai-summary-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, #5338ff 0%, #a855f7 100%);
}

.msarev-ai-summary__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.msarev-ai-summary__title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.msarev-ai-summary__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--cs-primary);
  margin: 0;
}

.msarev-ai-summary__body {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--cs-primary);
  opacity: 0.92;
}

/* 4. AI Key Moments Module */
.msarev-ai-moments {
  margin: 36px 0;
  padding: 24px 28px;
  background: var(--cs-card-bg);
  border: 1px solid var(--cs-border);
  border-radius: var(--cs-radius-lg);
}

.msarev-ai-moments__title {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--cs-secondary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.msarev-ai-moments__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.msarev-ai-moment-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 16px;
  border-radius: var(--cs-radius-md);
  background: var(--cs-site-bg);
  border: 1px solid var(--cs-border-subtle);
  transition: var(--cs-transition);
}

.msarev-ai-moment-item:hover {
  border-color: var(--cs-accent);
  transform: translateX(4px);
  background: var(--cs-accent-subtle);
}

.msarev-ai-moment-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--cs-accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 700;
  flex-shrink: 0;
}

.msarev-ai-moment-text strong {
  display: block;
  font-size: 0.95rem;
  color: var(--cs-primary);
  margin-bottom: 2px;
}

.msarev-ai-moment-text p {
  font-size: 0.85rem;
  color: var(--cs-secondary);
  margin: 0;
}

/* 5. AI Smart Up-Next Card (Floating Bottom-Right) */
.msarev-up-next {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 340px;
  max-width: calc(100vw - 48px);
  background: var(--cs-card-bg);
  border: 1px solid var(--cs-border);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
  border-radius: var(--cs-radius-lg);
  padding: 18px;
  z-index: 1050;
  transform: translateY(120%);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.msarev-up-next.is-visible {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.msarev-up-next__close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: var(--cs-divider);
  color: var(--cs-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--cs-transition);
}

.msarev-up-next__close:hover {
  background: var(--cs-accent);
  color: #fff;
}

.msarev-up-next__header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.msarev-up-next__label {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cs-accent);
}

.msarev-up-next__match {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--cs-radius-pill);
  background: #10b981;
  color: #fff;
}

.msarev-up-next__content {
  display: flex;
  gap: 12px;
  align-items: center;
}

.msarev-up-next__thumb {
  width: 80px;
  height: 60px;
  border-radius: var(--cs-radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.msarev-up-next__title {
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--cs-primary);
  margin-bottom: 4px;
}

.msarev-up-next__meta {
  font-size: 0.75rem;
  color: var(--cs-secondary);
}

/* 6. AI Exit-Intent Recirculation Pill */
.msarev-exit-pill {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--cs-primary);
  color: #ffffff;
  padding: 12px 24px;
  border-radius: var(--cs-radius-pill);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 1060;
  opacity: 0;
  visibility: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  max-width: 90vw;
}

.msarev-exit-pill.is-active {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
}

.msarev-exit-pill a {
  color: #ffffff;
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 360px;
}

.msarev-exit-pill a:hover {
  text-decoration: underline;
}

.msarev-exit-pill__close {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: 2px;
  display: flex;
  align-items: center;
}

.msarev-exit-pill__close:hover {
  color: #ffffff;
}