@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=DM+Mono:wght@400;500&display=swap');

/* ── RESPONSIVE SAFETY ────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --green-900: #0a2016;
  --green-800: #0f3422;
  --green-700: #14502e;
  --green-600: #166534;
  --green-500: #16a34a;
  --green-400: #22c55e;
  --green-300: #4ade80;
  --green-200: #bbf7d0;
  --green-100: #dcfce7;
  --green-50:  #f0fdf4;
  --bg: #ffffff;
  --bg-card: #ffffff;
  --text: #0f172a;
  --text-muted: #475569;
  --text-light: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 12px 40px rgba(10, 32, 22, 0.12);
  --font: 'Plus Jakarta Sans', sans-serif;
  --mono: 'DM Mono', monospace;
  --btn-gradient: linear-gradient(90deg, #6FBB59 0%, #159D91 45%, #0750AD 100%);
}

html {
  scroll-behavior: smooth;
  width: 100%;
  max-width: 100%;
}

body {
  font-family: var(--font);
  background: #ffffff;
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* ── SPA VIEW SWITCHING ───────────────────────── */
.help-view {
  width: 100%;
  min-height: 100vh;
  animation: viewFadeIn 0.3s ease;
}

.help-view[hidden] {
  display: none !important;
}

@keyframes viewFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Selective Gradient Text */
.wq-gradient-text {
  background: linear-gradient(90deg, #6FBB59 0%, #159D91 45%, #0750AD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

/* Primary Action Buttons - WASTRAQ Gradient */
.wq-gradient-btn,
.hc-search-btn,
.ht-cta-solid,
.ha-subscribe-btn,
.hc-cta-btn-solid,
.hc-cta-btn-outline {
  background: linear-gradient(90deg, #6FBB59 0%, #159D91 45%, #0750AD 100%) !important;
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
  border: none !important;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(21, 157, 145, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease !important;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.wq-gradient-btn:hover,
.hc-search-btn:hover,
.ht-cta-solid:hover,
.ha-subscribe-btn:hover,
.hc-cta-btn-solid:hover,
.hc-cta-btn-outline:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 20px rgba(21, 157, 145, 0.35) !important;
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
}

/* ════════════════════════════════════════════════
   1. HELP HOME STYLES (.hc-*)
════════════════════════════════════════════════ */
.hc-hero {
  padding: 60px 32px 72px;
  background: linear-gradient(160deg, #f8fafc 0%, #ffffff 100%);
  border-bottom: 1px solid #e2e8f0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hc-hero-inner {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  padding-top: 36px;
}

.hc-hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
  font-size: 14px; font-weight: 700;
  letter-spacing: .09em; text-transform: uppercase;
  padding: 6px 16px; border-radius: 100px;
  margin-bottom: 22px;
}

.hc-hero-tag-dot { width: 6px; height: 6px; border-radius: 50%; background: #22c55e; }

.hc-hero h1 {
  font-size: clamp(34px, 4vw, 58px);
  font-weight: 800; color: #0f172a;
  line-height: 1.08; letter-spacing: -.03em;
  margin-bottom: 14px;
}

.hc-hero p {
  font-size: clamp(16px, 1vw, 20px); color: #475569;
  line-height: 1.65; margin-bottom: 32px;
}

/* Search bar */
.hc-search-wrap {
  position: relative;
  max-width: 580px; margin: 0 auto 20px;
  isolation: isolate;
  z-index: 50;
  width: 100%;
}

.hc-search-input {
  width: 100%;
  padding: 16px 120px 16px 52px;
  border: 1.5px solid #cbd5e1;
  border-radius: 50px;
  background: #ffffff;
  color: #0f172a;
  font-family: var(--font);
  font-size: 16px !important;
  font-weight: 500;
  outline: none;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  transition: border-color .22s, box-shadow .22s;
}

.hc-search-input::placeholder { color: #94a3b8; }
.hc-search-input:focus {
  border-color: #159D91;
  box-shadow: 0 0 0 4px rgba(21,157,145,.15), 0 4px 20px rgba(0,0,0,0.08);
}

.hc-search-icon {
  position: absolute; left: 20px; top: 50%; transform: translateY(-50%);
  color: #64748b; pointer-events: none;
}

.hc-search-btn {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%) !important;
  padding: 10px 24px !important;
  border-radius: 40px !important;
  font-size: .88rem;
}

.hc-search-suggestions {
  display: flex; flex-wrap: wrap; gap: 8px;
  justify-content: center; margin-top: 14px;
}
.hc-search-suggestions span { font-size: .78rem; color: #64748b; font-weight: 600; }
.hc-suggestion-chip {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 5px 14px; border-radius: 100px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  color: #334155;
  font-size: .76rem; font-weight: 600;
  cursor: pointer;
  transition: background .18s, border-color .18s, color .18s;
  font-family: var(--font);
}
.hc-suggestion-chip:hover {
  background: #e6f4ea;
  border-color: #bbf7d0;
  color: #166534;
}

.hc-hero-stats {
  display: flex; gap: 32px; justify-content: center;
  flex-wrap: wrap; margin-top: 40px;
  padding-top: 32px; border-top: 1px solid #e2e8f0;
}
.hc-hero-stat-num {
  font-size: 1.6rem; font-weight: 800;
  background: linear-gradient(90deg, #6FBB59 0%, #159D91 45%, #0750AD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.hc-hero-stat-lbl { font-size: .75rem; color: #64748b; font-weight: 600; margin-top: 4px; }

.hc-status-bar {
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  padding: 11px 32px;
}
.hc-status-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 10px;
}
.hc-status-left {
  display: flex; align-items: center; gap: 7px;
  font-size: .8rem; font-weight: 600; color: #475569;
}
.hc-status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34,197,94,.2);
}
.hc-status-right { display: flex; align-items: center; gap: 20px; }
.hc-status-link {
  font-size: .8rem; font-weight: 600; color: #64748b;
  display: flex; align-items: center; gap: 5px;
  transition: color .18s;
  text-decoration: none;
}
.hc-status-link:hover { color: #159D91; }

.hc-breadcrumb {
  padding: 18px 32px 0;
  display: flex; align-items: center; gap: 6px;
  font-size: .78rem; color: #64748b;
  flex-wrap: wrap;
  max-width: 1280px; margin: 0 auto;
}
.hc-breadcrumb a { color: #64748b; transition: color .18s; text-decoration: none; }
.hc-breadcrumb a:hover { color: #159D91; }
.hc-breadcrumb-sep { color: #cbd5e1; }
.hc-breadcrumb-current { color: #0f172a; font-weight: 700; }

.hc-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 32px 88px;
  background: #ffffff;
}

.hc-section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .72rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: .1em;
  color: #159D91; margin-bottom: 12px;
}
.hc-section-label::before {
  content: ''; width: 18px; height: 2px;
  background: #6FBB59; border-radius: 2px;
}

.hc-section-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800; color: #0f172a;
  letter-spacing: -.025em; line-height: 1.2;
  margin-bottom: 8px;
}
.hc-section-sub {
  font-size: .97rem; color: #475569;
  line-height: 1.7; max-width: 560px;
}

.hc-categories-header { margin-bottom: 36px; }
.hc-kb-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.hc-kb-card {
  background: white;
  border: 1.5px solid #e2e8f0;
  border-radius: 16px;
  padding: 24px 22px;
  display: flex; flex-direction: column;
  transition: border-color .25s, box-shadow .25s, transform .25s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.hc-kb-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #6FBB59, #159D91);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s cubic-bezier(.4,0,.2,1);
}
.hc-kb-card:hover::before { transform: scaleX(1); }
.hc-kb-card:hover {
  border-color: #159D91;
  box-shadow: 0 10px 25px rgba(0,0,0,0.06);
  transform: translateY(-3px);
}
.hc-kb-card-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; flex-shrink: 0;
}
.hc-kb-card-head {
  display: flex; align-items: flex-start;
  justify-content: space-between; gap: 12px;
  margin-bottom: 10px;
}
.hc-kb-card h3 {
  font-size: .975rem; font-weight: 800;
  color: #0f172a; letter-spacing: -.01em;
  line-height: 1.3;
}
.hc-kb-article-count {
  display: inline-flex; align-items: center;
  padding: 3px 9px; border-radius: 100px;
  background: #f0fdf4; border: 1px solid #bbf7d0;
  font-size: .68rem; font-weight: 800;
  color: #166534; letter-spacing: .04em;
  white-space: nowrap; flex-shrink: 0;
}
.hc-kb-card p {
  font-size: .84rem; color: #475569;
  line-height: 1.65; flex: 1; margin-bottom: 16px;
}
.hc-kb-card-articles {
  display: flex; flex-direction: column; gap: 6px;
  border-top: 1px solid #e2e8f0;
  padding-top: 14px;
}
.hc-kb-card-article {
  display: flex; align-items: center; gap: 7px;
  font-size: .78rem; color: #64748b;
  font-weight: 500; line-height: 1.4;
}
.hc-kb-card-article::before {
  content: '';
  width: 4px; height: 4px; border-radius: 50%;
  background: #159D91; flex-shrink: 0;
}
.hc-kb-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 14px;
}
.hc-kb-card-cta {
  font-size: .78rem; font-weight: 700;
  color: #159D91;
  display: flex; align-items: center; gap: 5px;
}

.hc-popular-section { margin-top: 64px; }
.hc-popular-header {
  display: flex; align-items: flex-end;
  justify-content: space-between; margin-bottom: 28px;
  flex-wrap: wrap; gap: 12px;
}
.hc-view-all {
  font-size: .84rem; font-weight: 700;
  color: #159D91;
  display: flex; align-items: center; gap: 5px;
  text-decoration: none;
}
.hc-popular-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.hc-article-card {
  background: white;
  border: 1.5px solid #e2e8f0;
  border-radius: 12px;
  padding: 18px 20px;
  display: flex; align-items: flex-start; gap: 14px;
  transition: border-color .2s, box-shadow .2s, transform .18s;
  text-decoration: none;
}
.hc-article-card:hover {
  border-color: #159D91;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  transform: translateX(4px);
}
.hc-article-card-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  border-radius: 9px; background: #f0fdf4;
  display: flex; align-items: center; justify-content: center;
  color: #166534;
}
.hc-article-card-cat {
  font-size: .68rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: .08em;
  color: #94a3b8; margin-bottom: 4px;
}
.hc-article-card-title {
  font-size: .88rem; font-weight: 700;
  color: #0f172a; line-height: 1.35;
  margin-bottom: 5px;
}
.hc-article-card-desc {
  font-size: .78rem; color: #475569; line-height: 1.55;
}
.hc-article-card-meta {
  display: flex; align-items: center; gap: 12px; margin-top: 7px;
}
.hc-article-card-time {
  font-size: .7rem; color: #94a3b8;
  display: flex; align-items: center; gap: 4px; font-weight: 500;
}
.hc-article-card-read {
  font-size: .7rem; font-weight: 700;
  color: #159D91;
}

.hc-two-col {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px; margin-top: 64px;
  align-items: start;
}

.hc-faq-list { display: flex; flex-direction: column; gap: 10px; margin-top: 28px; }
.hc-faq-item {
  background: white;
  border: 1.5px solid #e2e8f0;
  border-radius: 12px; overflow: hidden;
  transition: border-color .2s;
}
.hc-faq-item.open { border-color: #159D91; }
.hc-faq-btn {
  width: 100%; display: flex; align-items: center;
  justify-content: space-between; gap: 16px;
  padding: 18px 20px; background: none; border: none;
  cursor: pointer; text-align: left;
  font-family: var(--font); transition: background .18s;
  min-height: 44px;
}
.hc-faq-btn:hover { background: #f8fafc; }
.hc-faq-item.open .hc-faq-btn { background: #f8fafc; }
.hc-faq-q {
  font-size: .92rem; font-weight: 700;
  color: #0f172a; line-height: 1.35;
}
.hc-faq-chevron {
  width: 28px; height: 28px; flex-shrink: 0;
  border-radius: 50%;
  background: #f1f5f9; border: 1.5px solid #e2e8f0;
  display: flex; align-items: center; justify-content: center;
  color: #64748b;
  transition: transform .3s cubic-bezier(.4,0,.2,1);
}
.hc-faq-item.open .hc-faq-chevron {
  transform: rotate(180deg);
  background: #e6f4ea; border-color: #bbf7d0;
  color: #166534;
}
.hc-faq-body {
  max-height: 0; overflow: hidden;
  transition: max-height .36s cubic-bezier(.4,0,.2,1), opacity .28s ease;
  opacity: 0;
}
.hc-faq-item.open .hc-faq-body { opacity: 1; }
.hc-faq-inner { padding: 0 20px 20px; }
.hc-faq-inner p { font-size: .9rem; color: #475569; line-height: 1.78; margin-bottom: 12px; }

.hc-sidebar { display: flex; flex-direction: column; gap: 20px; }
.hc-sidebar-card {
  background: white;
  border: 1.5px solid #e2e8f0;
  border-radius: 14px; padding: 22px;
}
.hc-sidebar-card-title {
  font-size: .82rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: .09em;
  color: #94a3b8; margin-bottom: 16px;
}
.hc-support-options { display: flex; flex-direction: column; gap: 10px; }
.hc-support-option {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 14px;
  background: #f8fafc; border: 1.5px solid #e2e8f0;
  border-radius: 10px; text-decoration: none;
  transition: border-color .2s, transform .2s;
  min-height: 44px;
}
.hc-support-option:hover { border-color: #159D91; transform: translateX(3px); }
.hc-support-opt-icon {
  width: 34px; height: 34px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.hc-support-opt-title { font-size: .84rem; font-weight: 700; color: #0f172a; }
.hc-support-opt-sub { font-size: .73rem; color: #64748b; margin-top: 1px; }

.hc-sidebar-links { display: flex; flex-direction: column; gap: 4px; }
.hc-sidebar-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 12px; border-radius: 8px;
  font-size: .83rem; font-weight: 500; color: #475569;
  text-decoration: none; transition: background .18s, color .18s;
  min-height: 44px;
}
.hc-sidebar-link:hover { background: #f0fdf4; color: #166534; }

.hc-sidebar-status-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 0; border-bottom: 1px solid #e2e8f0;
  font-size: .82rem; color: #475569;
}
.hc-sidebar-status-row:last-child { border-bottom: none; }
.hc-status-badge {
  font-size: .7rem; font-weight: 700; padding: 2px 8px;
  border-radius: 100px;
}
.hc-status-ok { background: #dcfce7; color: #15803d; }

.hc-releases-section { margin-top: 64px; }
.hc-releases-list { display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
.hc-release-item {
  background: white;
  border: 1.5px solid #e2e8f0;
  border-radius: 12px; padding: 20px 22px;
  display: grid; grid-template-columns: 100px 1fr auto;
  gap: 18px; align-items: start;
}
.hc-release-version {
  font-size: .7rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: .06em;
  color: #159D91;
}
.hc-release-date { font-size: .75rem; color: #94a3b8; margin-top: 3px; font-weight: 500; }
.hc-release-title { font-size: .92rem; font-weight: 700; color: #0f172a; margin-bottom: 5px; }
.hc-release-desc { font-size: .83rem; color: #475569; line-height: 1.6; }
.hc-release-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.hc-release-tag {
  font-size: .65rem; font-weight: 700;
  padding: 2px 8px; border-radius: 100px;
  letter-spacing: .04em; text-transform: uppercase;
}
.hc-tag-new { background: #dcfce7; color: #15803d; }
.hc-tag-improve { background: #f3e8ff; color: #7c3aed; }
.hc-release-read {
  font-size: .78rem; font-weight: 700; color: #159D91;
  display: flex; align-items: center; gap: 4px; white-space: nowrap;
  text-decoration: none;
}

.hc-cta-block {
  background: linear-gradient(160deg, #f8fafc 0%, #ffffff 100%);
  border: 1.5px solid #e2e8f0;
  border-radius: 20px; padding: 52px 40px;
  text-align: center; margin-top: 72px;
  position: relative; overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}
.hc-cta-icon {
  width: 54px; height: 54px;
  background: #f0fdf4; border: 1px solid #bbf7d0;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px; color: #16a34a;
}
.hc-cta-block h3 { font-size: 1.5rem; font-weight: 800; color: #0f172a; letter-spacing: -.025em; margin-bottom: 10px; }
.hc-cta-block p { font-size: .97rem; color: #475569; line-height: 1.7; max-width: 500px; margin: 0 auto 28px; }

.hc-search-results {
  display: none;
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: white; border: 1.5px solid var(--border);
  border-radius: 14px; box-shadow: var(--shadow-lg);
  z-index: 9999; overflow: hidden;
  max-height: 380px; overflow-y: auto;
}
.hc-search-results.visible { display: block; }
.hc-search-result-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; cursor: pointer;
  text-decoration: none; transition: background .15s;
}
.hc-search-result-item:hover { background: #f0fdf4; }
.hc-search-result-icon {
  width: 30px; height: 30px; border-radius: 8px;
  background: #e6f4ea; display: flex; align-items: center; justify-content: center;
  color: #166534; flex-shrink: 0;
}
.hc-search-result-text { font-size: .84rem; color: #0f172a; font-weight: 600; }
.hc-search-result-cat { font-size: .72rem; color: #64748b; margin-top: 1px; }

/* ════════════════════════════════════════════════
   2. TOPIC VIEW STYLES (.ht-*)
════════════════════════════════════════════════ */
.ht-breadcrumb-bar {
  max-width: 1500px; margin: 0 auto; padding: 24px 32px 8px;
}
.ht-breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: .82rem; color: #64748b; font-weight: 500;
  flex-wrap: wrap;
}
.ht-breadcrumb a { color: #64748b; text-decoration: none; transition: color .18s; }
.ht-breadcrumb a:hover { color: #159D91; }
.ht-breadcrumb-current { color: #159D91; font-weight: 700; }
.ht-breadcrumb-sep { color: #cbd5e1; }

.ht-hero {
  padding: 24px 32px 40px;
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
}
.ht-hero-inner {
  max-width: 1500px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 40px; flex-wrap: wrap;
}
.ht-hero-left { flex: 1; min-width: 280px; }
.ht-hero-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: #f0fdf4; border: 1.5px solid #bbf7d0; color: #166534;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; flex-shrink: 0;
}
.ht-hero h1 {
  font-size: clamp(32px, 3.4vw, 52px);
  font-weight: 700; line-height: 1.08; letter-spacing: -.03em;
  color: #0f172a; margin-bottom: 12px;
}
.ht-hero-desc {
  font-size: 1.05rem; color: #475569; line-height: 1.55;
  max-width: 580px;
}
.ht-hero-stats {
  display: flex; align-items: center; gap: 28px;
  background: #f8fafc; border: 1.5px solid #e2e8f0; border-radius: 16px;
  padding: 22px 32px;
}
.ht-stat-item { text-align: center; display: flex; flex-direction: column; align-items: center; }
.ht-stat-icon-wrap {
  width: 32px; height: 32px; border-radius: 50%; background: #f0fdf4;
  color: #159D91; display: flex; align-items: center; justify-content: center;
  margin-bottom: 6px;
}
.ht-stat-num {
  font-size: 1.85rem; font-weight: 800; line-height: 1.1;
  background: linear-gradient(90deg, #6FBB59 0%, #159D91 45%, #0750AD 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; display: inline-block;
}
.ht-stat-lbl { font-size: .78rem; color: #64748b; font-weight: 600; margin-top: 2px; text-transform: uppercase; }
.ht-stat-divider { width: 1px; height: 48px; background: #e2e8f0; }

.ht-layout {
  max-width: 1500px; margin: 0 auto;
  padding: 40px 32px 64px;
  display: grid; grid-template-columns: minmax(240px, 0.27fr) minmax(0, 1fr);
  gap: 36px; align-items: start;
}
.ht-sidebar { position: sticky; top: 24px; display: flex; flex-direction: column; gap: 20px; }
.ht-sidebar-card { background: white; border: 1.5px solid #e2e8f0; border-radius: 16px; padding: 22px; }
.ht-sidebar-title { font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .09em; color: #64748b; margin-bottom: 14px; }

.ht-search-wrap { position: relative; display: flex; align-items: center; }
.ht-search-icon-left { position: absolute; left: 12px; color: #64748b; pointer-events: none; }
.ht-search-mini {
  width: 100%; padding: 10px 14px 10px 38px; border: 1.5px solid #cbd5e1;
  border-radius: 9px; font-family: var(--font); font-size: 16px !important;
  color: #0f172a; background: #f8fafc; outline: none;
}
.ht-search-mini:focus { border-color: #159D91; background: white; }

.ht-topic-nav { display: flex; flex-direction: column; gap: 4px; }
.ht-sidebar-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px; border-radius: 8px;
  font-size: .86rem; font-weight: 500; color: #475569;
  text-decoration: none; border-left: 3px solid transparent; min-height: 44px;
}
.ht-sidebar-link:hover { background: #f0fdf4; color: #166534; }
.ht-sidebar-link.ht-active {
  background: #f0fdf4; color: #166534; border-left-color: #159D91; font-weight: 700;
}

.ht-section-title {
  font-size: 1.15rem; font-weight: 800; color: #0f172a;
  letter-spacing: -.01em; margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
  padding-bottom: 12px; border-bottom: 1.5px solid #e2e8f0;
}
.ht-section-title::before {
  content: ''; width: 4px; height: 18px; border-radius: 2px;
  background: linear-gradient(180deg, #6FBB59 0%, #159D91 100%); flex-shrink: 0;
}

.ht-article-card {
  background: white; border: 1.5px solid #e2e8f0;
  border-radius: 16px; padding: 24px 26px;
  margin-bottom: 16px;
  display: flex; gap: 20px; align-items: flex-start;
  transition: border-color .2s, box-shadow .2s, transform .18s;
}
.ht-article-card:hover { border-color: #93c5fd; transform: translateY(-2px); }
.ht-article-icon-box {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 2px;
}
.ht-article-content { flex: 1; }
.ht-article-header-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 6px; }
.ht-article-card h3 { font-size: 1.05rem; font-weight: 800; color: #0f172a; margin-bottom: 4px; }
.ht-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: .67rem; font-weight: 800; text-transform: uppercase;
  padding: 3px 10px; border-radius: 100px; white-space: nowrap; flex-shrink: 0;
}
.ht-badge-popular { background: #dcfce7; color: #166534; }
.ht-badge-new { background: #dbeafe; color: #1e40af; }
.ht-article-meta-row { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.ht-article-meta-item { font-size: .76rem; color: #64748b; display: flex; align-items: center; gap: 4px; font-weight: 500; }
.ht-article-desc { font-size: .88rem; color: #475569; line-height: 1.65; margin-bottom: 16px; }

.ht-article-body-wrap { display: none; }
.ht-article-body-wrap.open { display: block; animation: htFadeIn .3s ease; border-top: 1px solid #e2e8f0; padding-top: 16px; margin-top: 10px; }
.ht-article-body { font-size: .88rem; color: #475569; line-height: 1.78; }
.ht-article-body h4 { font-size: .88rem; font-weight: 800; color: #0f172a; margin: 16px 0 7px; }

.ht-toggle-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; background: #ffffff;
  border: 1.5px solid #cbd5e1; border-radius: 8px;
  font-family: var(--font); font-size: .8rem; font-weight: 700;
  color: #0f172a; cursor: pointer; transition: all .18s;
  min-height: 44px;
}
.ht-toggle-btn:hover { border-color: #159D91; color: #159D91; background: #f0fdf4; }

.ht-no-results {
  display: none; padding: 48px 24px; text-align: center; color: #64748b;
  background: white; border: 1.5px solid #e2e8f0; border-radius: 16px;
}

.ht-explore-section { max-width: 1500px; margin: 0 auto; padding: 0 32px 64px; }
.ht-explore-header { margin-bottom: 20px; }
.ht-explore-header h2 { font-size: 1.3rem; font-weight: 800; color: #0f172a; margin-bottom: 4px; }
.ht-explore-card {
  background: white; border: 1.5px solid #e2e8f0; border-radius: 16px;
  padding: 26px 30px; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.ht-explore-item { display: flex; flex-direction: column; position: relative; padding-right: 12px; }
.ht-explore-item:not(:last-child)::after {
  content: ''; position: absolute; right: 0; top: 10%; height: 80%; width: 1px; background: #e2e8f0;
}
.ht-explore-icon {
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px; flex-shrink: 0;
}
.ht-explore-item h3 { font-size: .98rem; font-weight: 800; color: #0f172a; margin-bottom: 4px; }
.ht-explore-item p { font-size: .82rem; color: #64748b; line-height: 1.5; margin-bottom: 12px; }
.ht-explore-link {
  font-size: .82rem; font-weight: 700; color: #159D91; text-decoration: none;
  display: inline-flex; align-items: center; gap: 4px; margin-top: auto;
}

/* ════════════════════════════════════════════════
   3. HELP ARTICLES / RELEASE NOTES STYLES (.ha-*)
════════════════════════════════════════════════ */
.ha-hero {
  background: linear-gradient(160deg, #f8fafc 0%, #ffffff 100%);
  padding: 48px 32px;
  color: #0f172a;
  border-bottom: 1px solid #e2e8f0;
}
.ha-hero-inner { max-width: 1280px; margin: 0 auto; }
.ha-breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: .78rem; color: #64748b; margin-bottom: 20px; flex-wrap: wrap;
}
.ha-breadcrumb a { color: #64748b; text-decoration: none; }
.ha-breadcrumb-sep { color: #94a3b8; }
.ha-hero h1 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800; letter-spacing: -.03em; line-height: 1.15;
  margin-bottom: 10px; color: #0f172a;
}
.ha-hero p { font-size: 1rem; color: #475569; line-height: 1.7; max-width: 600px; }

.ha-filter-bar {
  background: white; border-bottom: 1px solid #e2e8f0;
  padding: 14px 32px; position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.ha-filter-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.ha-filter-label { font-size: .76rem; font-weight: 700; color: #64748b; text-transform: uppercase; margin-right: 4px; }
.ha-filter-btn {
  padding: 6px 16px; border-radius: 100px;
  border: 1.5px solid #cbd5e1; background: white;
  font-family: var(--font); font-size: .78rem; font-weight: 600;
  color: #475569; cursor: pointer; transition: all .18s;
  min-height: 38px;
}
.ha-filter-btn:hover { border-color: #159D91; color: #159D91; background: #f0fdf4; }
.ha-filter-btn.active {
  border-color: #159D91 !important;
  background: linear-gradient(90deg, #6FBB59 0%, #159D91 45%, #0750AD 100%) !important;
  color: white !important;
}
.ha-filter-count { margin-left: auto; font-size: .78rem; color: #64748b; font-weight: 500; }

.ha-main { max-width: 1280px; margin: 0 auto; padding: 48px 32px 88px; display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: start; }
.ha-articles-list { display: flex; flex-direction: column; gap: 0; }

.ha-article {
  background: white; border: 1.5px solid #e2e8f0;
  border-radius: 14px; padding: 28px 28px; margin-bottom: 16px;
}
.ha-article-header { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 16px; }
.ha-article-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.ha-article-meta { flex: 1; }
.ha-article-version {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .68rem; font-weight: 800; text-transform: uppercase;
  color: #166534; margin-bottom: 4px;
}
.ha-article-date { font-size: .75rem; color: #64748b; font-weight: 500; }
.ha-article h2 {
  font-size: 1.15rem; font-weight: 800; color: #0f172a;
  letter-spacing: -.02em; line-height: 1.25; margin-bottom: 10px;
}
.ha-article-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.ha-article-tag {
  font-size: .67rem; font-weight: 800; padding: 3px 9px;
  border-radius: 100px; text-transform: uppercase;
}
.tag-new    { background: #dcfce7; color: #15803d; }
.tag-improve { background: #f3e8ff; color: #7c3aed; }

.ha-article-lead {
  font-size: .97rem; color: #475569; line-height: 1.75;
  margin-bottom: 20px; padding-bottom: 20px;
  border-bottom: 1px solid #e2e8f0;
}
.ha-article-extended { display: none; }
.ha-article-extended.expanded { display: block; animation: haFadeIn .3s ease; }
.ha-article-body { font-size: .92rem; color: #475569; line-height: 1.8; }
.ha-article-body h3 { font-size: .95rem; font-weight: 800; color: #0f172a; margin: 20px 0 8px; }

.ha-read-more-btn {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 16px; padding: 8px 16px;
  background: #f8fafc; border: 1.5px solid #cbd5e1;
  color: #475569; font-size: .82rem; font-weight: 700;
  border-radius: 8px; cursor: pointer; font-family: var(--font);
  min-height: 44px;
}

.ha-sidebar { position: sticky; top: 72px; display: flex; flex-direction: column; gap: 16px; }
.ha-sidebar-card { background: white; border: 1.5px solid #e2e8f0; border-radius: 12px; padding: 20px; }
.ha-sidebar-title { font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .09em; color: #64748b; margin-bottom: 14px; }
.ha-toc-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 7px 10px; border-radius: 7px;
  font-size: .8rem; font-weight: 500; color: #475569; text-decoration: none;
  min-height: 44px;
}
.ha-toc-link:hover, .ha-toc-link.active { background: #f0fdf4; color: #166534; }
.ha-toc-version { font-size: .67rem; color: #64748b; font-family: var(--mono); }
.ha-back-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .82rem; font-weight: 700; color: #159D91;
  text-decoration: none; padding: 9px 14px;
  background: #f0fdf4; border: 1.5px solid #bbf7d0;
  border-radius: 8px; min-height: 44px;
}

.ha-subscribe-form { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.ha-subscribe-input {
  width: 100%; padding: 10px 12px; border: 1.5px solid #cbd5e1;
  border-radius: 8px; font-family: var(--font); font-size: 16px !important;
  color: #0f172a; background: #f8fafc; outline: none;
}

/* ════════════════════════════════════════════════
   RESPONSIVE MEDIA QUERIES
════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hc-two-col { grid-template-columns: 1fr; }
  .hc-sidebar { display: grid; grid-template-columns: 1fr 1fr; }
  .ht-layout { grid-template-columns: 1fr; }
  .ht-sidebar { position: static; }
  .ht-explore-card { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .ht-explore-item::after { display: none; }
  .ha-main { grid-template-columns: 1fr; }
  .ha-sidebar { position: static; }
}

@media (max-width: 900px) {
  .hc-kb-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hc-hero { padding: 48px 20px 56px; }
  .hc-hero h1 { font-size: clamp(32px, 8.5vw, 44px); }
  .hc-main { padding: 40px 20px 64px; }
  .hc-kb-grid { grid-template-columns: 1fr; }
  .hc-popular-grid { grid-template-columns: 1fr; }
  .hc-release-item { grid-template-columns: 1fr; gap: 10px; }
  .hc-cta-block { padding: 36px 20px; }
  .hc-sidebar { display: flex; flex-direction: column; }
  .hc-status-bar { padding: 10px 20px; }
  .hc-breadcrumb { padding-left: 20px; padding-right: 20px; }

  .ht-breadcrumb-bar { padding: 16px 20px 4px; }
  .ht-hero { padding: 16px 20px 32px; }
  .ht-hero h1 { font-size: clamp(32px, 7.5vw, 40px); }
  .ht-hero-stats { width: 100%; justify-content: space-around; padding: 16px; gap: 12px; }
  .ht-layout { padding: 24px 20px 48px; gap: 24px; }
  .ht-article-card { flex-direction: column; gap: 14px; padding: 20px; }
  .ht-explore-section { padding: 0 20px 48px; }
  .ht-explore-card { grid-template-columns: 1fr; gap: 20px; }

  .ha-hero { padding: 36px 20px; }
  .ha-filter-bar {
    padding: 12px 20px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .ha-filter-inner { flex-wrap: nowrap; }
  .ha-filter-btn { white-space: nowrap; }
  .ha-main { padding: 32px 20px 64px; }
  .ha-article { padding: 20px 18px; }
}

@media (max-width: 480px) {
  .hc-hero h1 { font-size: 32px; }
  .hc-hero-stats { grid-template-columns: 1fr 1fr; display: grid; gap: 16px; }
  .hc-search-btn { padding: 8px 16px !important; font-size: .78rem; }
  .hc-search-input { padding-right: 90px; }
}

@media print {
  .hc-hero, .hc-cta-block, .hc-status-bar, .ht-hero, .ha-hero { background: none !important; }
  .hc-search-wrap, .ha-filter-bar, .ht-sidebar, .ha-sidebar { display: none !important; }
}