/* ============================================================
   CSS RESET & VARIABLES
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0b1121;
  --bg2: #111827;
  --card: #131c2e;
  --card2: #182237;
  --border: rgba(255,255,255,0.06);
  --border2: rgba(255,255,255,0.10);
  --primary: #00BCD4;
  --primary-dim: rgba(0,188,212,0.08);
  --primary-mid: rgba(0,188,212,0.15);
  --primary-border: rgba(0,188,212,0.25);
  --text: #e2e8f0;
  --text2: #cbd5e1;
  --muted: #64748b;
  --muted2: #475569;
  --destructive: #ef4444;
  --destructive-dim: rgba(239,68,68,0.08);
  --destructive-border: rgba(239,68,68,0.20);
  --green: #4ade80;
  --yellow: #facc15;
  --blue1: #0284C7;
  --blue2: #527498;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
  --radius: 0px;
}

html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img, svg { display: block; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: all 0.3s ease;
  height: 64px; display: flex; align-items: center;
}
.nav.scrolled {
  background: rgba(19,28,46,0.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border); box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
.nav .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo .logo-icon {
  width: 32px; height: 32px; background: var(--primary); display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
}
.nav-logo .logo-icon svg { width: 16px; height: 16px; color: #0b1121; }
.nav-logo .logo-text .title { font-weight: 700; font-size: 14px; line-height: 1.2; letter-spacing: 0.02em; }
.nav-logo .logo-text .sub {
  color: var(--muted); font-size: 10px; font-family: var(--font-mono); letter-spacing: 0.15em;
}
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 14px; color: var(--muted); transition: color 0.15s; }
.nav-links a:hover { color: var(--primary); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary); color: #0b1121; padding: 8px 20px;
  font-size: 14px; font-weight: 600; transition: opacity 0.15s;
  border: none;
}
.nav-cta:hover { opacity: 0.85; }
.nav-cta svg { width: 13px; height: 13px; }
.nav-toggle {
  display: none; background: none; border: none; color: var(--text);
  cursor: pointer; padding: 4px;
}
.nav-toggle svg { width: 20px; height: 20px; }

.nav-mobile {
  display: none; background: var(--card); border-top: 1px solid var(--border);
}
.nav-mobile a {
  display: block; padding: 12px 24px; font-size: 14px; color: var(--text);
  border-bottom: 1px solid rgba(255,255,255,0.04); transition: color 0.15s;
}
.nav-mobile a:hover { color: var(--primary); }
.nav-mobile .nav-mobile-cta {
  display: block; text-align: center; background: var(--primary); color: #0b1121;
  padding: 10px; font-size: 14px; font-weight: 600; margin: 16px 24px;
  border: none;
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-mobile.open { display: block; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding-top: 64px;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 90% 60% at 75% 55%, rgba(0,188,212,0.07) 0%, transparent 65%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(2,132,199,0.05) 0%, transparent 60%);
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,188,212,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,188,212,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-fade {
  position: absolute; bottom: 0; left: 0; right: 0; height: 160px;
  background: linear-gradient(to top, var(--bg), transparent); pointer-events: none;
}
.hero .container {
  position: relative; display: grid; grid-template-columns: 1fr 1fr;
  gap: 56px; align-items: center; padding-top: 80px; padding-bottom: 80px;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.75rem); font-weight: 700; line-height: 1.12; margin-bottom: 24px; }
.hero h1 .hl { color: var(--primary); }
.hero-desc { color: var(--muted); font-size: 16px; line-height: 1.7; margin-bottom: 32px; max-width: 480px; }
.hero-btns { display: flex; flex-wrap: wrap; gap: 16px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary); color: #0b1121; padding: 12px 28px;
  font-weight: 600; font-size: 15px; transition: opacity 0.15s;
  border: none;
}
.btn-primary:hover { opacity: 0.85; }
.btn-primary svg { width: 15px; height: 15px; }
.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border2); color: var(--text);
  padding: 12px 28px; font-weight: 500; font-size: 15px; transition: all 0.15s;
}
.btn-outline:hover { border-color: var(--primary-border); color: var(--primary); }
.hero-tags {
  margin-top: 40px; display: flex; flex-wrap: wrap; align-items: center; gap: 24px;
  font-size: 12px; color: var(--muted);
}
.hero-tags .tag { display: flex; align-items: center; gap: 6px; }
.hero-tags .tag svg { width: 12px; height: 12px; color: var(--primary); }

/* Hero panel */
.hero-panel {
  background: var(--card); border: 1px solid var(--border); position: relative; overflow: hidden;
}
.hero-panel::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(to right, transparent, var(--primary-border), transparent);
}
.hero-panel::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(to right, transparent, rgba(0,188,212,0.3), transparent);
}
.panel-header {
  padding: 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.panel-header .live { display: flex; align-items: center; gap: 8px; }
.panel-header .live .live-dot { width: 8px; height: 8px; background: var(--green); border-radius: 50%; animation: pulse 2s infinite; }
.panel-header .live span { color: var(--primary); font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.05em; }
.panel-header .refresh { color: var(--muted); font-family: var(--font-mono); font-size: 11px; }
.panel-grid { padding: 20px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.panel-card { background: rgba(15,23,42,0.6); border: 1px solid rgba(255,255,255,0.04); padding: 12px; }
.panel-card .plabel { color: var(--muted); font-family: var(--font-mono); font-size: 10px; margin-bottom: 6px; }
.panel-card .pval { font-family: var(--font-mono); font-size: 18px; font-weight: 700; }
.panel-card .pval.green { color: var(--green); }
.panel-card .pval.cyan { color: var(--primary); }
.panel-card .pval.white { color: var(--text); }
.panel-card .pval.yellow { color: var(--yellow); }

.panel-bars { padding: 0 20px 20px; }
.panel-bars .bars-title { color: var(--muted); font-family: var(--font-mono); font-size: 10px; margin-bottom: 12px; letter-spacing: 0.05em; }
.bar-row { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.bar-row .bname { font-family: var(--font-mono); font-size: 10px; color: var(--muted); width: 80px; flex-shrink: 0; }
.bar-row .btrack { flex: 1; height: 4px; background: var(--bg2); overflow: hidden; }
.bar-row .bfill { height: 100%; transition: width 1s ease; }
.bar-row .bpct { font-family: var(--font-mono); font-size: 11px; color: var(--muted); width: 32px; text-align: right; }
.panel-alerts {
  padding: 0 20px 20px; border-top: 1px solid var(--border); padding-top: 16px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}
.panel-alerts .aitem { font-family: var(--font-mono); font-size: 10px; }
.panel-alerts .aitem .adot { margin-right: 4px; }
.panel-alerts .aitem .adot.y { color: var(--yellow); }
.panel-alerts .aitem .adot.c { color: var(--primary); }
.panel-alerts .aitem .asub { color: var(--muted); margin-top: 2px; }

@media (max-width: 768px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-panel { display: none; }
}

/* ============================================================
   METRICS BAR
   ============================================================ */
.metrics {
  background: var(--card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.metrics .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding-top: 40px; padding-bottom: 40px; }
.metric { text-align: center; padding: 8px 0; }
.metric .mval { font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 700; color: var(--primary); font-family: var(--font-mono); margin-bottom: 6px; }
.metric .mlabel { color: var(--muted); font-size: 14px; }
@media (max-width: 640px) {
  .metrics .container { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   SECTIONS COMMON
   ============================================================ */
.section { padding: 96px 0; }
.section-alt { padding: 96px 0; background: rgba(19,28,46,0.5); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 700; margin-bottom: 16px; line-height: 1.25; }
.section-header h2 .hl { color: var(--primary); }
.section-header p { color: var(--muted); max-width: 720px; margin: 0 auto; font-size: 14px; line-height: 1.7; }

/* ============================================================
   PAIN POINTS GRID
   ============================================================ */
.pain-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px;
}
.pain-card {
  background: var(--card); border: 1px solid var(--border); padding: 20px;
  transition: all 0.2s; cursor: default;
}
.pain-card:hover { border-color: var(--destructive-border); background: var(--destructive-dim); }
.pain-card .phead { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.pain-card .picon {
  width: 36px; height: 36px; background: var(--destructive-dim);
  border: 1px solid var(--destructive-border); display: flex;
  align-items: center; justify-content: center; transition: background 0.2s;
}
.pain-card:hover .picon { background: rgba(239,68,68,0.12); }
.pain-card .picon svg { width: 15px; height: 15px; color: rgba(239,68,68,0.8); }
.pain-card .pid { font-family: var(--font-mono); font-size: 10px; color: rgba(100,116,139,0.6); }
.pain-card h3 { font-weight: 600; font-size: 14px; margin-bottom: 8px; line-height: 1.35; }
.pain-card p { color: var(--muted); font-size: 12px; line-height: 1.6; }

@media (max-width: 1200px) { .pain-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px) { .pain-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .pain-grid { grid-template-columns: 1fr; } }

/* ============================================================
   ARCHITECTURE LAYERS
   ============================================================ */
.arch-wrap { max-width: 900px; margin: 0 auto; }
.arch-layers { display: flex; flex-direction: column; gap: 8px; }
.arch-layer {
  border: 1px solid; padding: 20px; transition: transform 0.2s; cursor: default;
}
.arch-layer:hover { transform: scale(1.005); }
.arch-layer .ainner { display: flex; gap: 16px; align-items: center; }
.arch-layer .alabel { width: 128px; flex-shrink: 0; }
.arch-layer .alabel h4 { font-weight: 700; font-size: 14px; }
.arch-layer .alabel .aen { font-family: var(--font-mono); font-size: 9px; color: var(--muted); letter-spacing: 0.15em; margin-top: 2px; }
.arch-layer .adiv { width: 1px; height: 32px; background: var(--border); flex-shrink: 0; }
.arch-layer .atags { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }
.arch-layer .atag {
  font-size: 12px; color: rgba(226,232,240,0.75); background: rgba(15,23,42,0.25);
  border: 1px solid rgba(255,255,255,0.04); padding: 4px 10px;
}
.arch-bottom {
  max-width: 900px; margin: 16px auto 0;
  border: 1px solid var(--primary-border); background: var(--primary-dim);
  padding: 16px; text-align: center;
}
.arch-bottom span { color: var(--primary); font-size: 14px; font-weight: 600; }

@media (max-width: 640px) {
  .arch-layer .ainner { flex-direction: column; align-items: flex-start; }
  .arch-layer .adiv { display: none; }
  .arch-layer .alabel { width: auto; }
}

/* ============================================================
   MODULES GRID
   ============================================================ */
.module-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px;
}
.module-card {
  background: var(--card); border: 1px solid var(--border); padding: 20px;
  transition: all 0.2s; cursor: pointer; position: relative;
}
.module-card:hover { border-color: rgba(0,188,212,0.4); background: var(--primary-dim); }
.module-card .mhead { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.module-card .micon {
  width: 40px; height: 40px; background: var(--primary-dim);
  border: 1px solid var(--primary-border); display: flex;
  align-items: center; justify-content: center; transition: background 0.2s;
}
.module-card:hover .micon { background: rgba(0,188,212,0.18); }
.module-card .micon svg { width: 18px; height: 18px; color: var(--primary); }
.module-card .mtag { font-family: var(--font-mono); font-size: 12px; color: rgba(100,116,139,0.6); }
.module-card h3 { font-weight: 600; font-size: 14px; margin-bottom: 8px; line-height: 1.35; }
.module-card p { color: var(--muted); font-size: 12px; line-height: 1.6; }
.module-card .mlink {
  margin-top: 16px; display: flex; align-items: center; gap: 4px;
  color: var(--primary); font-size: 12px; opacity: 0; transition: opacity 0.2s;
}
.module-card:hover .mlink { opacity: 1; }
.module-card .mlink svg { width: 11px; height: 11px; }

@media (max-width: 1200px) { .module-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px) { .module-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .module-grid { grid-template-columns: 1fr; } }

/* ============================================================
   SCENARIOS TABS
   ============================================================ */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 32px; }
.tab-btn {
  display: flex; align-items: center; gap: 8px; padding: 10px 16px;
  font-size: 14px; font-weight: 500; border: 1px solid var(--border2);
  background: var(--card); color: var(--muted); cursor: pointer;
  transition: all 0.2s;
}
.tab-btn:hover { border-color: rgba(0,188,212,0.35); color: var(--text); }
.tab-btn.active { background: var(--primary); color: #0b1121; border-color: var(--primary); }
.tab-btn svg { width: 13px; height: 13px; }
.tab-panel {
  background: var(--card); border: 1px solid var(--border);
  display: grid; grid-template-columns: 3fr 2fr;
}
.tab-panel .tleft { padding: 32px; border-right: 1px solid var(--border); }
.tab-panel .tright { padding: 32px; }
.tab-panel .tleft .ticon-row { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.tab-panel .tleft .ticon {
  width: 44px; height: 44px; background: var(--primary-dim);
  border: 1px solid var(--primary-border); display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
}
.tab-panel .tleft .ticon svg { width: 19px; height: 19px; color: var(--primary); }
.tab-panel .tleft .ttitle h3 { font-weight: 700; font-size: 18px; }
.tab-panel .tleft .ttitle .tsub { font-family: var(--font-mono); font-size: 10px; color: var(--muted); letter-spacing: 0.05em; }
.tab-panel .tleft p { color: var(--muted); line-height: 1.7; font-size: 14px; }
.tab-panel .tright .tlabel {
  font-size: 11px; font-family: var(--font-mono); color: var(--muted);
  letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 16px;
}
.tab-panel .tright ul { display: flex; flex-direction: column; gap: 12px; }
.tab-panel .tright li { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; }
.tab-panel .tright li svg { width: 14px; height: 14px; color: var(--primary); margin-top: 2px; flex-shrink: 0; }

@media (max-width: 768px) {
  .tab-panel { grid-template-columns: 1fr; }
  .tab-panel .tleft { border-right: none; border-bottom: 1px solid var(--border); }
}

/* ============================================================
   TECH CARDS
   ============================================================ */
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.tech-card {
  background: var(--card); border: 1px solid var(--border); padding: 24px;
  transition: all 0.2s;
}
.tech-card:hover { border-color: rgba(0,188,212,0.4); }
.tech-card .thd { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.tech-card .ticon {
  width: 48px; height: 48px; background: var(--primary-dim);
  border: 1px solid var(--primary-border); display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
  transition: background 0.2s;
}
.tech-card:hover .ticon { background: rgba(0,188,212,0.18); }
.tech-card .ticon svg { width: 22px; height: 22px; color: var(--primary); }
.tech-card h3 { font-weight: 700; font-size: 16px; }
.tech-card p { color: var(--muted); font-size: 14px; line-height: 1.65; }

@media (max-width: 900px) { .tech-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .tech-grid { grid-template-columns: 1fr; } }

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-left h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 700; margin-bottom: 20px; line-height: 1.25; }
.about-left h2 .hl { color: var(--primary); }
.about-left p { color: var(--muted); line-height: 1.7; margin-bottom: 24px; font-size: 14px; }
.about-left .checks { display: flex; flex-direction: column; gap: 12px; }
.about-left .checks .chk { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.about-left .checks .chk svg { width: 15px; height: 15px; color: var(--primary); flex-shrink: 0; }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.about-stat {
  background: var(--card); border: 1px solid var(--border); padding: 28px;
  text-align: center; transition: border-color 0.15s;
}
.about-stat:hover { border-color: rgba(0,188,212,0.3); }
.about-stat .asval { font-size: 30px; font-weight: 700; color: var(--primary); font-family: var(--font-mono); margin-bottom: 8px; }
.about-stat .aslabel { color: var(--muted); font-size: 14px; }

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   CTA / CONTACT
   ============================================================ */
.cta { padding: 112px 0; position: relative; overflow: hidden; }
.cta::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 70% 70% at 50% 50%, rgba(0,188,212,0.06) 0%, transparent 70%);
}
.cta-grid {
  content: ''; position: absolute; inset: 0; pointer-events: none; opacity: 0.4;
  background-image:
    linear-gradient(rgba(0,188,212,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,188,212,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
}
.cta .container { position: relative; max-width: 720px; text-align: center; }
.cta h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 700; margin-bottom: 20px; line-height: 1.25; }
.cta h2 .hl { color: var(--primary); }
.cta p { color: var(--muted); margin-bottom: 40px; font-size: 14px; line-height: 1.7; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.cta-cards {
  border: 1px solid var(--border); background: rgba(19,28,46,0.5);
  display: grid; grid-template-columns: repeat(3, 1fr);
}
.cta-cards > div {
  padding: 20px 16px; text-align: center;
}
.cta-cards > div + div { border-left: 1px solid var(--border); }
.cta-cards .cc-title { font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.cta-cards .cc-sub { color: var(--muted); font-size: 12px; }

@media (max-width: 540px) {
  .cta-cards { grid-template-columns: 1fr; }
  .cta-cards > div + div { border-left: none; border-top: 1px solid var(--border); }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--card); border-top: 1px solid var(--border);
  padding: 48px 0;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
.footer-brand .flogo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand .flogo .flogo-icon {
  width: 28px; height: 28px; background: var(--primary); display: flex;
  align-items: center; justify-content: center;
}
.footer-brand .flogo .flogo-icon svg { width: 14px; height: 14px; color: #0b1121; }
.footer-brand .flogo .ftitle { font-weight: 700; font-size: 14px; line-height: 1.2; }
.footer-brand .flogo .fsub { color: var(--muted); font-size: 10px; font-family: var(--font-mono); letter-spacing: 0.05em; margin-top: 2px; }
.footer-brand > p { color: var(--muted); font-size: 12px; line-height: 1.65; }
.footer-col h4 { font-weight: 600; font-size: 14px; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { color: var(--muted); font-size: 12px; transition: color 0.15s; }
.footer-col ul a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
}
.footer-bottom span { color: var(--muted); font-size: 12px; }
.footer-bottom .fbn { font-family: var(--font-mono); font-size: 12px; color: var(--muted); }

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--muted2); border-radius: 3px; }