/* =========================================
   MarketGuru Knowledge Base — Dark Theme
   ========================================= */

:root {
  --bg:            #0C0A14;
  --bg-02:         #100D1E;
  --card:          #161228;
  --card-border:   rgba(191, 90, 242, 0.14);
  --card-hover:    rgba(191, 90, 242, 0.28);
  --accent-from:   #D946EF;
  --accent-to:     #7B2FBE;
  --purple:        #BF5AF2;
  --purple-dim:    rgba(191, 90, 242, 0.12);
  --glow:          rgba(217, 70, 239, 0.18);
  --text-1:        #F4F2FF;
  --text-2:        #A89FC2;
  --text-3:        #6B6184;
  --input-bg:      #1A1430;
  --input-border:  rgba(191, 90, 242, 0.28);
  --divider:       rgba(255, 255, 255, 0.06);
  --radius-sm:     8px;
  --radius-md:     12px;
  --radius-lg:     16px;
  --radius-xl:     24px;
  --font:          'Onest', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.kb-page,
.kb-page *,
.kb-page *::before,
.kb-page *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.kb-page {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-1);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* Background grid texture */
.kb-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(191,90,242,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(191,90,242,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.kb-page a { color: var(--purple); text-decoration: none; transition: color .15s; }
.kb-page a:hover { color: var(--accent-from); }

.kb-page img { max-width: 100%; display: block; }

/* Layout */
.kb-page .container { max-width: 1180px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* Hero / Top area */
.kb-page .kb-hero {
  padding: 56px 0 44px;
  text-align: center;
  position: relative;
}
.kb-page .kb-hero-glow {
  position: absolute;
  top: -40px; left: 50%;
  transform: translateX(-50%);
  width: 720px; height: 360px;
  background: radial-gradient(ellipse 60% 50% at 50% 40%,
    rgba(217,70,239,0.18) 0%,
    rgba(123,47,190,0.08) 40%,
    transparent 75%);
  pointer-events: none;
}
.kb-page .kb-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  padding: 8px 18px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 40px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  letter-spacing: .02em;
}
.kb-page .kb-brand .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-from), var(--accent-to));
}
.kb-page .kb-hero h1 {
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.5px;
  color: var(--text-1);
  margin-bottom: 14px;
}
.kb-page .kb-hero h1 .accent { color: var(--purple); }
.kb-page .kb-hero .subtitle {
  font-size: 17px;
  color: var(--text-2);
  max-width: 480px;
  margin: 0 auto 36px;
  line-height: 1.55;
}

/* Search */
.kb-page .search-wrap {
  max-width: 580px;
  margin: 0 auto 52px;
  position: relative;
}
.kb-page .search-inner {
  position: relative;
  display: flex;
  align-items: center;
}
.kb-page .search-icon {
  position: absolute;
  left: 18px;
  color: var(--text-3);
  pointer-events: none;
  flex-shrink: 0;
}
.kb-page .search-input {
  width: 100%;
  padding: 15px 18px 15px 50px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-lg);
  color: var(--text-1);
  font-size: 15px;
  font-family: var(--font);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.kb-page .search-input::placeholder { color: var(--text-3); }
.kb-page .search-input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px var(--glow);
}
.kb-page .search-kbd {
  position: absolute;
  right: 14px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 5px;
  padding: 3px 7px;
  font-size: 11px;
  color: var(--text-3);
  pointer-events: none;
}
.kb-page .search-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0; right: 0;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  z-index: 200;
  display: none;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.kb-page .search-dropdown.open { display: block; }
.kb-page .search-result {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--divider);
  cursor: pointer;
  transition: background .12s;
}
.kb-page .search-result:last-child { border-bottom: none; }
.kb-page .search-result:hover { background: var(--purple-dim); }
.kb-page .search-result-icon {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--purple-dim);
  display: flex; align-items: center; justify-content: center;
  color: var(--purple);
  font-size: 14px;
  margin-top: 1px;
}
.kb-page .search-result-title { font-size: 14px; font-weight: 600; color: var(--text-1); line-height: 1.3; margin-bottom: 3px; }
.kb-page .search-result-cat  { font-size: 12px; color: var(--text-3); }
.kb-page .search-empty { padding: 20px; text-align: center; color: var(--text-3); font-size: 14px; }

/* Stats bar */
.kb-page .kb-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 52px;
  flex-wrap: wrap;
}
.kb-page .kb-stat { text-align: center; }
.kb-page .kb-stat-num {
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-from), var(--accent-to));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.kb-page .kb-stat-label { font-size: 13px; color: var(--text-3); margin-top: 2px; }

/* Tabs */
.kb-page .tabs-wrap {
  margin-bottom: 36px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.kb-page .tabs-wrap::-webkit-scrollbar { display: none; }
.kb-page .tabs {
  display: flex;
  gap: 8px;
  padding-bottom: 2px;
  white-space: nowrap;
}
.kb-page .tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: 40px;
  border: 1px solid rgba(255,255,255,0.09);
  background: transparent;
  color: var(--text-3);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: all .18s;
  white-space: nowrap;
  line-height: 1;
}
.kb-page .tab-btn .tab-count {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 20px;
  background: rgba(255,255,255,0.07);
  color: var(--text-3);
  transition: all .18s;
}
.kb-page .tab-btn:hover {
  border-color: rgba(191,90,242,0.4);
  color: var(--text-2);
  background: var(--purple-dim);
}
.kb-page .tab-btn.active {
  background: linear-gradient(135deg, var(--accent-from), var(--accent-to));
  border-color: transparent;
  color: #fff;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(217,70,239,0.3);
}
.kb-page .tab-btn.active .tab-count {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

/* Category sections */
.kb-page .cat-section { display: none; margin-bottom: 52px; }
.kb-page .cat-section.show { display: block; animation: kb-fadeUp .28s ease; }

@keyframes kb-fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.kb-page .cat-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--divider);
  flex-wrap: wrap;
  gap: 10px;
}
.kb-page .cat-head-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-1);
}
.kb-page .cat-head-title a { color: inherit; }
.kb-page .cat-head-title a:hover { color: var(--purple); }
.kb-page .cat-head-link {
  font-size: 13px;
  color: var(--purple);
  display: flex;
  align-items: center;
  gap: 4px;
}
.kb-page .cat-head-link:hover { color: var(--accent-from); }

/* Article cards grid */
.kb-page .cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 14px;
}

.kb-page .art-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
  position: relative;
  overflow: hidden;
}
.kb-page .art-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(217,70,239,0.04), transparent 60%);
  opacity: 0;
  transition: opacity .2s;
  pointer-events: none;
}
.kb-page .art-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 40px rgba(217,70,239,0.14);
  border-color: var(--card-hover);
}
.kb-page .art-card:hover::after { opacity: 1; }
.kb-page .art-card a { display: block; text-decoration: none; color: inherit; }
.kb-page .art-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.45;
  margin-bottom: 9px;
  transition: color .15s;
}
.kb-page .art-card:hover .art-card-title { color: var(--purple); }
.kb-page .art-card-excerpt {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.kb-page .art-card-foot {
  display: flex;
  align-items: center;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--divider);
}
.kb-page .art-card-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 20px;
  background: var(--purple-dim);
  color: var(--purple);
  letter-spacing: .02em;
}
.kb-page .art-card-arr {
  margin-left: auto;
  color: var(--text-3);
  font-size: 18px;
  transition: transform .15s, color .15s;
}
.kb-page .art-card:hover .art-card-arr {
  transform: translateX(3px);
  color: var(--purple);
}

/* Breadcrumb */
.kb-page .breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-3);
  padding: 28px 0 24px;
  flex-wrap: wrap;
}
.kb-page .breadcrumb a { color: var(--text-3); }
.kb-page .breadcrumb a:hover { color: var(--purple); }
.kb-page .breadcrumb .sep { color: var(--text-3); opacity: .5; }
.kb-page .breadcrumb .current { color: var(--text-2); }

/* Page header */
.kb-page .page-head {
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--divider);
}
.kb-page .page-head h1 {
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 800;
  color: var(--text-1);
  line-height: 1.25;
  margin-bottom: 10px;
  letter-spacing: -.3px;
}
.kb-page .page-head h1 .accent { color: var(--purple); }
.kb-page .page-head-desc { font-size: 16px; color: var(--text-2); max-width: 600px; }
.kb-page .page-head-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-3);
}

/* Article page layout */
.kb-page .art-layout {
  display: grid;
  grid-template-columns: 1fr 272px;
  gap: 48px;
  align-items: start;
  padding-bottom: 100px;
}
@media (max-width: 940px) {
  .kb-page .art-layout { grid-template-columns: 1fr; }
  .kb-page .art-toc-col { display: none; }
}

/* Article body content */
.kb-page .art-body { min-width: 0; }
.kb-page .art-body h1 {
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 800;
  color: var(--text-1);
  line-height: 1.25;
  margin-bottom: 28px;
  letter-spacing: -.3px;
}
.kb-page .art-body h2 {
  font-size: 21px;
  font-weight: 700;
  color: var(--purple);
  margin: 40px 0 16px;
  line-height: 1.3;
  padding-top: 4px;
}
.kb-page .art-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-1);
  margin: 28px 0 12px;
  line-height: 1.35;
}
.kb-page .art-body h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  margin: 20px 0 10px;
}
.kb-page .art-body p {
  color: var(--text-2);
  margin-bottom: 16px;
  line-height: 1.75;
  font-size: 15px;
}
.kb-page .art-body ul,
.kb-page .art-body ol {
  margin: 0 0 18px 22px;
  color: var(--text-2);
}
.kb-page .art-body li {
  margin-bottom: 8px;
  line-height: 1.65;
  font-size: 15px;
}
.kb-page .art-body a { color: var(--purple); border-bottom: 1px solid rgba(191,90,242,0.3); }
.kb-page .art-body a:hover { color: var(--accent-from); border-bottom-color: var(--accent-from); }
.kb-page .art-body img {
  display: block;
  max-width: 100%;
  width: auto;
  height: auto;
}

.kb-page .art-body figure {
  max-width: 100%;
  margin: 24px 0;
}

.kb-page .art-body .wp-block-image {
  max-width: 100%;
}

.kb-page .art-body .wp-block-image img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

@media (max-width: 768px) {
  .kb-page .art-body figure,
  .kb-page .art-body .wp-block-image {
    max-width: 100% !important;
  }

  .kb-page .art-body .wp-block-image img {
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
  }
}
.kb-page .art-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
  overflow: auto;
  display: block;
}
.kb-page .art-body th {
  background: var(--purple-dim);
  color: var(--purple);
  padding: 10px 14px;
  text-align: left;
  border: 1px solid rgba(191,90,242,0.15);
  font-weight: 600;
  white-space: nowrap;
}
.kb-page .art-body td {
  padding: 10px 14px;
  border: 1px solid var(--divider);
  color: var(--text-2);
  vertical-align: top;
}
.kb-page .art-body tr:nth-child(even) td { background: rgba(255,255,255,0.02); }
.kb-page .art-body blockquote {
  border-left: 3px solid var(--purple);
  margin: 22px 0;
  padding: 14px 20px;
  background: var(--purple-dim);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-2);
  font-style: italic;
}
.kb-page .art-body code {
  background: rgba(255,255,255,0.07);
  padding: 2px 7px;
  border-radius: 5px;
  font-family: 'Fira Mono', 'Consolas', monospace;
  font-size: 13px;
  color: var(--accent-from);
}
.kb-page .art-body pre {
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  overflow-x: auto;
  margin: 18px 0;
}
.kb-page .art-body pre code { background: none; padding: 0; font-size: 13px; color: var(--text-1); }

/* TOC sidebar */
.kb-page .art-toc {
  position: sticky;
  top: 28px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}
.kb-page .toc-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-3);
  margin-bottom: 14px;
}
.kb-page .toc-list { list-style: none; }
.kb-page .toc-list li { margin-bottom: 2px; }
.kb-page .toc-list a {
  display: block;
  font-size: 13px;
  color: var(--text-2);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: all .15s;
  line-height: 1.4;
}
.kb-page .toc-list a:hover {
  color: var(--purple);
  background: var(--purple-dim);
  border-left-color: rgba(191,90,242,0.4);
}
.kb-page .toc-list a.toc-active {
  color: var(--purple);
  background: var(--purple-dim);
  border-left-color: var(--purple);
  font-weight: 600;
}
.kb-page .toc-divider {
  height: 1px;
  background: var(--divider);
  margin: 14px 0;
}
.kb-page .toc-back {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-3);
  transition: color .15s;
  border: none;
  background: none;
  text-decoration: none;
}
.kb-page .toc-back:hover { color: var(--purple); }

/* Buttons */
.kb-page .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.04);
  color: var(--text-2);
  font-size: 13px;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  transition: all .18s;
  text-decoration: none;
}
.kb-page .btn-ghost:hover {
  border-color: rgba(191,90,242,.4);
  background: var(--purple-dim);
  color: var(--purple);
}
.kb-page .btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-md);
  border: none;
  background: linear-gradient(135deg, var(--accent-from), var(--accent-to));
  color: #fff;
  font-size: 14px;
  font-family: var(--font);
  font-weight: 600;
  cursor: pointer;
  transition: opacity .18s, transform .18s;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(217,70,239,0.3);
}
.kb-page .btn-accent:hover { opacity: .88; transform: translateY(-1px); color: #fff; }

/* Nav: article prev/next */
.kb-page .art-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--divider);
}
.kb-page .art-nav-item {
  display: flex;
  flex-direction: column;
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: border-color .18s, transform .18s;
}
.kb-page .art-nav-item:hover {
  border-color: var(--card-hover);
  transform: translateY(-2px);
}
.kb-page .art-nav-label { font-size: 11px; color: var(--text-3); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 6px; }
.kb-page .art-nav-title { font-size: 14px; font-weight: 600; color: var(--text-1); line-height: 1.35; }
.kb-page .art-nav-item.next { text-align: right; }

/* Responsive */
@media (max-width: 768px) {
  .kb-page .kb-hero { padding: 40px 0 28px; }
  .kb-page .kb-stats { gap: 28px; }
  .kb-page .cards-grid { grid-template-columns: 1fr; }
  .kb-page .art-nav { grid-template-columns: 1fr; }
  .kb-page .container { padding: 0 16px; }
}

/* In-article search */
.kb-page .art-search-wrap { position: relative; margin-bottom: 16px; }
.kb-page .art-search-inner {
  position: relative;
  display: flex;
  align-items: center;
}
.kb-page .art-search-ico {
  position: absolute;
  left: 10px;
  color: var(--text-3);
  pointer-events: none;
  display: flex;
}
.kb-page .art-search-input {
  width: 100%;
  padding: 9px 12px 9px 32px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.kb-page .art-search-input::placeholder { color: var(--text-3); }
.kb-page .art-search-input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 2px var(--glow);
}
.kb-page .art-search-drop {
  position: absolute;
  top: calc(100% + 6px);
  left: 0; right: 0;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  z-index: 300;
  display: none;
  box-shadow: 0 16px 48px rgba(0,0,0,.5);
  max-height: 360px;
  overflow-y: auto;
}
.kb-page .art-search-drop.open { display: block; }
.kb-page .art-sd-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 13px;
  border-bottom: 1px solid var(--divider);
  cursor: pointer;
  font-size: 12px;
  color: var(--text-2);
  line-height: 1.45;
  transition: background .12s;
}
.kb-page .art-sd-item:last-child { border-bottom: none; }
.kb-page .art-sd-item:hover { background: var(--purple-dim); color: var(--text-1); }
.kb-page .art-sd-item mark {
  background: rgba(217,70,239,.25);
  color: var(--purple);
  border-radius: 2px;
  padding: 0 2px;
}
.kb-page .art-sd-icon {
  flex-shrink: 0;
  color: var(--purple);
  font-weight: 700;
  font-size: 13px;
  margin-top: 1px;
}
.kb-page .art-sd-empty {
  padding: 14px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
}

.kb-page mark.search-hit {
  background: rgba(217,70,239,.28);
  color: var(--text-1);
  border-radius: 3px;
  padding: 0 2px;
}

.kb-page .art-highlight {
  animation: kb-art-flash 2.2s ease;
  scroll-margin-top: 90px;
}
@keyframes kb-art-flash {
  0%   { background: rgba(217,70,239,.18); border-radius: 6px; }
  60%  { background: rgba(217,70,239,.10); }
  100% { background: transparent; }
}