/* ============================================================
   DNAcrypt-AI — Main Stylesheet
   Aesthetic: Dark-lab scientific, structured, precise
   Fonts: Syne (display) + DM Sans (body) + DM Mono (code/data)
   ============================================================ */

:root {
  --bg:          #080c10;
  --bg-surface:  #0d1319;
  --bg-card:     #111820;
  --bg-card-alt: #141c26;
  --border:      rgba(255,255,255,0.07);
  --border-hi:   rgba(255,255,255,0.14);

  --text-primary:   #e8edf2;
  --text-secondary: #8a9ab0;
  --text-muted:     #4a5a6e;

  --accent:        #00d4a4;   /* genomic teal */
  --accent-dim:    #00a882;
  --accent-glow:   rgba(0, 212, 164, 0.18);
  --accent-subtle: rgba(0, 212, 164, 0.07);

  --blue:       #4da6ff;
  --blue-dim:   rgba(77,166,255,0.12);
  --amber:      #f5a623;
  --amber-dim:  rgba(245,166,35,0.12);
  --red:        #ff5a5a;

  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 22px;

  --max-w: 1180px;
  --header-h: 64px;

  --transition: 0.18s ease;
}

/* ---- Reset & Base ---------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* Subtle grid texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,212,164,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,164,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-dim); }

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

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ---- Header ---------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(8,12,16,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}
.logo:hover { color: var(--text-primary); }
.logo-helix { color: var(--accent); font-size: 20px; line-height: 1; }
.logo-accent { color: var(--accent); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 400;
  color: var(--text-secondary);
  padding: 6px 11px;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.nav-cta {
  background: var(--accent) !important;
  color: var(--bg) !important;
  font-weight: 500 !important;
  padding: 6px 14px !important;
  margin-left: 8px;
}
.nav-cta:hover {
  background: var(--accent-dim) !important;
  color: var(--bg) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all var(--transition);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px 20px;
  z-index: 99;
}
.mobile-nav a {
  font-size: 15px;
  color: var(--text-secondary);
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav.open { display: flex; }

/* ---- Hero ------------------------------------------------ */
.hero-section {
  padding: 96px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(0,212,164,0.1) 0%, transparent 65%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid rgba(0,212,164,0.25);
  border-radius: 20px;
  padding: 5px 14px;
  margin-bottom: 28px;
  letter-spacing: 0.04em;
}
.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.8); }
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 5.5vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  max-width: 800px;
  margin-bottom: 24px;
}
.hero-title .hl { color: var(--accent); }

.hero-desc {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14.5px;
  padding: 11px 24px;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary:hover {
  background: var(--accent-dim);
  color: var(--bg);
  transform: translateY(-1px);
  box-shadow: 0 4px 18px rgba(0,212,164,0.28);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 14.5px;
  padding: 11px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-hi);
  transition: all var(--transition);
  text-decoration: none;
  cursor: pointer;
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.04);
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.22);
}

/* ---- Pipeline Status Bar --------------------------------- */
.pipeline-bar {
  display: flex;
  gap: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.pipeline-step {
  flex: 1;
  padding: 16px 18px;
  border-right: 1px solid var(--border);
  position: relative;
}
.pipeline-step:last-child { border-right: none; }

.pipeline-step-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.pipeline-step-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.pipeline-step-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  margin-top: 4px;
  font-weight: 500;
}
.status-active  { color: var(--accent); }
.status-build   { color: var(--blue); }
.status-planned { color: var(--text-muted); }

.status-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
}
.status-active .status-dot  { background: var(--accent); animation: pulse 2s infinite; }
.status-build .status-dot   { background: var(--blue); }
.status-planned .status-dot { background: var(--text-muted); }

/* ---- Section Commons ------------------------------------- */
.section {
  padding: 80px 0;
  position: relative;
}
.section-alt { background: var(--bg-surface); }
.section-border-top { border-top: 1px solid var(--border); }

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 3.5vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.section-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.section-header-row .section-desc { margin-bottom: 0; }

/* ---- Cards ----------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color var(--transition), transform var(--transition);
}
.card:hover {
  border-color: var(--border-hi);
  transform: translateY(-2px);
}

.card-icon {
  font-size: 22px;
  margin-bottom: 12px;
  line-height: 1;
}

.card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.card-body {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ---- Stat Grid ------------------------------------------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 64px;
}

.stat-cell {
  background: var(--bg-card);
  padding: 28px 24px;
}

.stat-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 32px;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 6px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ---- Pipeline Flow --------------------------------------- */
.flow-pipeline {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 40px;
}

.flow-node {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-card-alt);
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  white-space: nowrap;
}

.flow-node.accent { border-color: rgba(0,212,164,0.4); color: var(--accent); }

.flow-arrow {
  color: var(--text-muted);
  font-size: 12px;
  flex-shrink: 0;
}

/* ---- Use Case Tabs --------------------------------------- */
.tab-strip {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.tab-btn {
  font-size: 13px;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}
.tab-btn:hover  { border-color: var(--border-hi); color: var(--text-primary); }
.tab-btn.active { background: var(--accent-subtle); border-color: rgba(0,212,164,0.35); color: var(--accent); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.uc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 12px;
}

.uc-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 12px;
}

.uc-num {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--accent-subtle);
  border: 1px solid rgba(0,212,164,0.25);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-mono);
}

.uc-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.uc-sub {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.uc-body {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.tag {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 10px;
  font-family: var(--font-mono);
}
.tag-green  { background: rgba(0,212,164,0.1);  color: var(--accent); border: 1px solid rgba(0,212,164,0.2); }
.tag-blue   { background: var(--blue-dim);       color: var(--blue);   border: 1px solid rgba(77,166,255,0.2); }
.tag-amber  { background: var(--amber-dim);      color: var(--amber);  border: 1px solid rgba(245,166,35,0.2); }

/* ---- Compare Table --------------------------------------- */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 40px;
}

.compare-col {
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border);
}
.compare-col.old { background: var(--bg-card); }
.compare-col.new { background: rgba(0,212,164,0.05); border-color: rgba(0,212,164,0.25); }

.compare-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
}
.compare-col.old .compare-title { color: var(--text-secondary); }
.compare-col.new .compare-title { color: var(--accent); }

.compare-item {
  font-size: 13.5px;
  color: var(--text-secondary);
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.compare-item:last-child { border-bottom: none; }
.compare-col.new .compare-item { color: rgba(0,212,164,0.85); }
.compare-item::before {
  content: '–';
  color: var(--text-muted);
  flex-shrink: 0;
  margin-top: 1px;
}
.compare-col.new .compare-item::before { content: '✓'; color: var(--accent); }

/* ---- Roadmap --------------------------------------------- */
.roadmap-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.roadmap-list::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 0; bottom: 0;
  width: 1px;
  background: var(--border);
}

.roadmap-item {
  display: flex;
  gap: 20px;
  padding-bottom: 32px;
  position: relative;
}
.roadmap-item:last-child { padding-bottom: 0; }

.roadmap-dot {
  width: 39px;
  height: 39px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  font-size: 15px;
}

.roadmap-dot.done    { border-color: rgba(0,212,164,0.4); background: var(--accent-subtle); }
.roadmap-dot.active  { border-color: var(--accent); background: var(--accent-subtle); box-shadow: 0 0 0 4px rgba(0,212,164,0.1); }
.roadmap-dot.planned { border-color: var(--border); }

.roadmap-content { padding-top: 8px; }

.roadmap-phase {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.roadmap-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 5px;
}

.roadmap-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---- CTA Banner ------------------------------------------ */
.cta-banner {
  background: linear-gradient(135deg, rgba(0,212,164,0.1) 0%, rgba(77,166,255,0.07) 100%);
  border: 1px solid rgba(0,212,164,0.2);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(0,212,164,0.08) 0%, transparent 65%);
  pointer-events: none;
}

.cta-banner-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 34px);
  color: var(--text-primary);
  margin-bottom: 14px;
  position: relative;
}

.cta-banner-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  position: relative;
}

.cta-banner .hero-ctas {
  justify-content: center;
  margin-bottom: 0;
  position: relative;
}

/* ---- Page Hero (inner pages) ----------------------------- */
.page-hero {
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--border);
}

.page-hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.page-hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.page-hero-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

/* ---- Content Prose (for research, publications) ---------- */
.prose {
  max-width: 720px;
}

.prose h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 48px 0 14px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.prose h2:first-child { margin-top: 0; border-top: none; padding-top: 0; }

.prose h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 28px 0 10px;
}

.prose p {
  font-size: 15.5px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 18px;
}

.prose ul, .prose ol {
  padding-left: 20px;
  margin-bottom: 18px;
}
.prose li {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 6px;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  color: var(--accent);
}

.prose pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  overflow-x: auto;
  margin: 20px 0;
}
.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
  color: var(--text-primary);
}

/* ---- Publication card ------------------------------------ */
.pub-list { display: flex; flex-direction: column; gap: 16px; }

.pub-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: border-color var(--transition);
}
.pub-card:hover { border-color: var(--border-hi); }

.pub-year {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  min-width: 36px;
  padding-top: 2px;
}

.pub-body {}

.pub-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 5px;
  line-height: 1.4;
}

.pub-authors {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

.pub-venue {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.pub-tags { display: flex; flex-wrap: wrap; gap: 5px; }

/* ---- Release card ---------------------------------------- */
.release-list { display: flex; flex-direction: column; gap: 16px; }

.release-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
}

.release-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.release-version {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.release-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.release-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.badge-latest  { background: var(--accent-subtle); border: 1px solid rgba(0,212,164,0.3); color: var(--accent); }
.badge-stable  { background: var(--blue-dim);       border: 1px solid rgba(77,166,255,0.3); color: var(--blue); }
.badge-archive { background: transparent;            border: 1px solid var(--border);        color: var(--text-muted); }

.release-notes {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.release-notes ul { padding-left: 18px; margin-top: 8px; }
.release-notes li { margin-bottom: 4px; }

/* ---- Example block --------------------------------------- */
.example-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.example-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.example-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card-alt);
}

.example-header-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}

.example-body {
  padding: 18px;
}

.code-block {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-all;
}
.code-block .cm { color: var(--text-muted); font-style: italic; }
.code-block .ck { color: var(--accent); }
.code-block .cv { color: var(--blue); }
.code-block .cs { color: var(--amber); }

/* ---- Architecture diagram placeholder -------------------- */
.arch-diagram {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 40px;
}

.arch-layers {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.arch-layer {
  display: flex;
  align-items: center;
  gap: 12px;
}

.arch-layer-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  width: 90px;
  flex-shrink: 0;
  text-align: right;
}

.arch-layer-boxes {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  flex: 1;
}

.arch-box {
  font-size: 12px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card-alt);
  color: var(--text-primary);
  white-space: nowrap;
  font-family: var(--font-mono);
}
.arch-box.accent { border-color: rgba(0,212,164,0.35); color: var(--accent); background: var(--accent-subtle); }
.arch-box.blue   { border-color: rgba(77,166,255,0.3);  color: var(--blue);   background: var(--blue-dim); }
.arch-box.amber  { border-color: rgba(245,166,35,0.3);  color: var(--amber);  background: var(--amber-dim); }

.arch-connector {
  width: 1px;
  height: 18px;
  background: var(--border);
  margin-left: calc(90px + 12px + 14px + 6px);
}

/* ---- Contact redirect ------------------------------------ */
.contact-redirect {
  text-align: center;
  padding: 80px 0;
}

/* ---- Footer ---------------------------------------------- */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  margin-top: 80px;
}

.footer-inner {
  display: flex;
  gap: 48px;
  justify-content: space-between;
  padding-top: 48px;
  padding-bottom: 48px;
  flex-wrap: wrap;
}

.footer-brand {
  max-width: 240px;
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 12px;
}

.footer-parent {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 10px;
}

.footer-nav {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 13.5px;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--text-primary); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 14px 0;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.footer-pipeline-tag {
  background: var(--accent-subtle);
  border: 1px solid rgba(0,212,164,0.2);
  color: var(--accent);
  border-radius: 10px;
  padding: 3px 10px;
  font-size: 10px;
  letter-spacing: 0.05em;
}

/* ---- Responsive ------------------------------------------ */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .compare-grid { grid-template-columns: 1fr; }
  .example-grid { grid-template-columns: 1fr; }
  .pipeline-bar { flex-direction: column; }
  .pipeline-step { border-right: none; border-bottom: 1px solid var(--border); }
  .pipeline-step:last-child { border-bottom: none; }
}

@media (max-width: 640px) {
  .hero-section { padding: 64px 0 56px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { flex-direction: column; }
  .footer-nav { flex-direction: column; gap: 24px; }
  .cta-banner { padding: 36px 24px; }
  .arch-layer { flex-direction: column; align-items: flex-start; }
  .arch-layer-label { width: auto; text-align: left; }
}