/*
 * MxChat Add-On detail page (/add-ons/<slug>/). Same palette as gallery.css.
 * Pattern mirrors mxchat.ai's mxchat-platform-section / mxchat-platform-card idiom:
 * light surface, ample whitespace, blue + purple accents, dark navy headings.
 */

.mxch-addons-detail-page {
  background: #ffffff;
  color: var(--mxch-body, #2D3748);
  margin: 0;
  padding: 0;
}

/* ── Hero ─────────────────────────────────────────────────────────────── */

.mxch-addon-detail-hero {
  --hero-accent: var(--accent, #4721fb);
  position: relative;
  padding: 72px 24px 64px;
  text-align: center;
  background:
    radial-gradient(46rem 24rem at 18% 0%, color-mix(in srgb, var(--hero-accent) 10%, transparent), transparent 60%),
    radial-gradient(40rem 22rem at 90% 10%, rgba(171, 29, 254, 0.07), transparent 60%),
    linear-gradient(180deg, #F7FAFC 0%, #ffffff 100%);
  border-bottom: 1px solid #E2E8F0;
  overflow: hidden;
}

.mxch-addon-detail-hero-inner {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}

.mxch-addon-detail-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #4A5568;
  text-decoration: none;
  margin-bottom: 28px;
  letter-spacing: 0.01em;
  transition: color 0.18s ease, transform 0.18s ease;
}

.mxch-addon-detail-breadcrumb:hover,
.mxch-addon-detail-breadcrumb:focus {
  color: #2B6CB0;
  transform: translateX(-2px);
}

.mxch-addon-detail-hero h1 {
  font-size: clamp(32px, 4.4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  line-height: 1.1;
  color: #1A202C;
}

.mxch-addon-detail-tagline {
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.55;
  margin: 0 auto 28px;
  max-width: 620px;
  color: #4A5568;
}

.mxch-addon-detail-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(43, 108, 176, 0.15);
  border-radius: 999px;
  font-size: 13px;
  color: #2D3748;
  margin: 6px 0 20px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.mxch-addon-detail-meta-pill {
  font-weight: 700;
  color: #215387;
}

.mxch-addon-detail-meta-dot {
  color: #CBD5E0;
}

.mxch-addon-detail-meta-updated {
  color: #4A5568;
}

.mxch-addon-detail-ctas {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.mxch-addon-detail-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
  letter-spacing: 0.01em;
}

.mxch-addon-detail-cta-primary {
  background: linear-gradient(135deg, #4721fb 0%, #ab1dfe 100%);
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(71, 33, 251, 0.25);
}

.mxch-addon-detail-cta-primary:hover,
.mxch-addon-detail-cta-primary:focus {
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(71, 33, 251, 0.32);
  color: #ffffff;
}

.mxch-addon-detail-cta-secondary {
  background: #ffffff;
  color: #2B6CB0;
  border: 1px solid #E2E8F0;
}

.mxch-addon-detail-cta-secondary:hover,
.mxch-addon-detail-cta-secondary:focus {
  border-color: #2B6CB0;
  color: #215387;
  transform: translateY(-1px);
}

/* ── Sections ─────────────────────────────────────────────────────────── */

.mxch-addon-detail-section {
  max-width: 820px;
  margin: 0 auto;
  padding: 72px 24px;
}

.mxch-addon-detail-section h2 {
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 700;
  color: #1A202C;
  margin: 0 0 28px;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

/* Features list */

.mxch-addon-detail-features ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 14px 28px;
}

.mxch-addon-detail-features li {
  position: relative;
  padding: 14px 16px 14px 44px;
  background: #F7FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  font-size: 15px;
  line-height: 1.5;
  color: #2D3748;
}

.mxch-addon-detail-features li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4721fb 0%, #ab1dfe 100%);
  box-shadow: 0 0 0 4px rgba(71, 33, 251, 0.08);
}

.mxch-addon-detail-features li::after {
  content: "";
  position: absolute;
  left: 19px;
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
  width: 10px;
  height: 5px;
  border-left: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
}

/* Changelog */

.mxch-addon-detail-changelog {
  background: linear-gradient(180deg, #F7FAFC 0%, #ffffff 100%);
  border-top: 1px solid #E2E8F0;
  max-width: none;
  padding: 72px 24px 96px;
}

.mxch-addon-detail-changelog > h2,
.mxch-addon-detail-changelog > .mxch-addon-detail-version,
.mxch-addon-detail-changelog > .mxch-addon-detail-changelog-empty {
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.mxch-addon-detail-version {
  background: #ffffff;
  border: 1px solid #E2E8F0;
  border-radius: 14px;
  padding: 22px 26px 24px;
  margin: 0 auto 18px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.mxch-addon-detail-version-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid #EDF2F7;
}

.mxch-addon-detail-version-head h3 {
  font-size: 18px;
  font-weight: 700;
  color: #1A202C;
  margin: 0;
  letter-spacing: -0.01em;
}

.mxch-addon-detail-version-head time {
  font-size: 13px;
  color: #718096;
  font-variant-numeric: tabular-nums;
}

.mxch-addon-detail-changelog-body p {
  margin: 0 0 12px;
  color: #2D3748;
  line-height: 1.55;
}

.mxch-addon-detail-changelog-body ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mxch-addon-detail-changelog-body li {
  font-size: 15px;
  line-height: 1.55;
  color: #2D3748;
}

.mxch-changelog-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-right: 6px;
  vertical-align: 1px;
}

.mxch-changelog-tag-new       { background: rgba(71, 33, 251, 0.1);  color: #4721fb; }
.mxch-changelog-tag-improved  { background: rgba(43, 108, 176, 0.1); color: #2B6CB0; }
.mxch-changelog-tag-fixed     { background: rgba(16, 185, 129, 0.12); color: #047857; }
.mxch-changelog-tag-security  { background: rgba(220, 38, 38, 0.1);  color: #B91C1C; }

.mxch-addon-detail-changelog-empty {
  color: #718096;
  font-size: 15px;
  background: #F7FAFC;
  border: 1px dashed #CBD5E0;
  border-radius: 12px;
  padding: 22px 24px;
}

/* Stub state */

.mxch-addon-detail-stub {
  max-width: 620px;
  margin: 0 auto;
  padding: 96px 24px 120px;
  text-align: center;
  color: #4A5568;
}

.mxch-addon-detail-stub h2 {
  font-size: 28px;
  font-weight: 700;
  color: #1A202C;
  margin: 0 0 14px;
}

.mxch-addon-detail-stub p {
  font-size: 16px;
  line-height: 1.55;
  margin: 0 0 28px;
}

/* ── Responsive ───────────────────────────────────────────────────────── */

@media (max-width: 640px) {
  .mxch-addon-detail-hero {
    padding: 56px 20px 48px;
  }
  .mxch-addon-detail-section,
  .mxch-addon-detail-changelog {
    padding: 48px 16px;
  }
  .mxch-addon-detail-features ul {
    grid-template-columns: 1fr;
  }
  .mxch-addon-detail-version {
    padding: 20px 18px 22px;
  }
}