/* 2026-09 visual refresh: shared theme + interactive hero. */
:root {
  --zlw-bg:#f6f7fc;
  --zlw-bg-soft:#eef0f8;
  --zlw-surface:#fff;
  --zlw-surface-warm:#f1f3fa;
  --zlw-text:#17203c;
  --zlw-text-2:#505d79;
  --zlw-text-3:#65718a;
  --zlw-border:#dfe3f0;
  --zlw-border-strong:#c0c9e1;
  --zlw-accent:#6552de;
  --zlw-accent-strong:#5141bf;
  --zlw-accent-soft:#ece9fc;
  --zlw-brand:#6652d9;
  --zlw-brand-strong:#5141bf;
  --zlw-brand-soft:#ebe8fb;
  --zlw-success:#258365;
  --zlw-focus-ring:#9183ef;
  --zlw-demo-glow:rgba(117,87,237,.15);
  --zlw-demo-cyan:#287da5;
  --zlw-demo-shadow:0 30px 100px -40px rgba(45,44,106,.3);
  --zlw-on-accent:#fff}

[data-theme="dark"] {
  --zlw-bg:#080d1b;
  --zlw-bg-soft:#121a30;
  --zlw-surface:#10182b;
  --zlw-surface-warm:#0c1325;
  --zlw-text:#f1f3ff;
  --zlw-text-2:#b0bad3;
  --zlw-text-3:#8996b4;
  --zlw-border:#25304a;
  --zlw-border-strong:#445275;
  --zlw-accent:#7762eb;
  --zlw-accent-strong:#6854d8;
  --zlw-accent-soft:rgba(137,111,249,.16);
  --zlw-brand:#b1a0ff;
  --zlw-brand-strong:#c2b6ff;
  --zlw-brand-soft:rgba(151,125,255,.14);
  --zlw-success:#7cdbba;
  --zlw-demo-glow:rgba(107,73,237,.2);
  --zlw-demo-cyan:#84d9ed;
  --zlw-demo-shadow:0 35px 100px -35px rgba(0,0,0,.8);
  --zlw-on-accent:#fff}

.container {
  max-width:1200px}
.nav {
  background:color-mix(in srgb,var(--zlw-bg) 85%,transparent)}
.nav-inner {
  height:76px}
.brand {
  font-size:22px}
.brand img {
  height:30px}
.nav-links a {
  font-size:14px}
.btn-primary {
  color:var(--zlw-on-accent);
  box-shadow:0 6px 24px -10px var(--zlw-accent)}
.theme-btn,.nav-burger {
  min-width:44px;
  min-height:44px}
.hero {
  padding:78px 0 28px;
  isolation:isolate}
.hero::before {
  background:radial-gradient(ellipse 65% 45% at 50% 48%,var(--zlw-demo-glow),transparent 85%);
  z-index:-1}
.hero-grid {
  position:absolute;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:linear-gradient(var(--zlw-border) 1px,transparent 1px),linear-gradient(90deg,var(--zlw-border) 1px,transparent 1px);
  background-size:72px 72px;
  opacity:.23;
  mask-image:radial-gradient(ellipse at 50% 35%,black,transparent 65%)}
.hero-copy {
  text-align:center}
.hero-status {
  display:inline-flex;
  align-items:center;
  gap:10px;
  border:1px solid var(--zlw-border);
  border-radius:30px;
  padding:6px 16px;
  font-size:12px;
  color:var(--zlw-text-2);
  background:var(--zlw-surface-warm)}
.hero-status>span,.demo-bottom i {
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--zlw-success);
  box-shadow:0 0 12px color-mix(in srgb,var(--zlw-success) 50%,transparent)}
.hero-status i {
  font-style:normal;
  color:var(--zlw-border-strong)}
.hero h1 {
  font-size:clamp(40px,5.6vw,72px);
  letter-spacing:-.045em;
  line-height:1.22;
  margin-top:26px;
  font-weight:750}
.hero-gradient {
  background:linear-gradient(110deg,var(--zlw-demo-cyan),var(--zlw-brand) 60%,var(--zlw-brand-strong));
  background-clip:text;
  -webkit-background-clip:text;
  color:transparent}
.hero-sub {
  margin:24px auto 0;
  font-size:17px;
  line-height:1.9}
.hero-ctas {
  justify-content:center;
  margin-top:26px;
  gap:12px}
.hero-ctas .btn {
  border-radius:9px;
  font-size:15px;
  gap:22px;
  padding:14px 24px}
.hero-note {
  font-size:12px;
  margin-top:16px}
.hero-note span {
  padding:0 9px}
.demo-shell {
  position:relative;
  margin:48px auto 0;
  max-width:1040px;
  border:1px solid var(--zlw-border-strong);
  border-radius:16px;
  background:var(--zlw-surface-warm);
  box-shadow:var(--zlw-demo-shadow);
  overflow:hidden;
  scroll-margin-top:100px;
  text-align:left}
.demo-shell::before {
  content:"";
  position:absolute;
  top:0;
  left:15%;
  right:15%;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--zlw-brand),transparent)}
.demo-top {
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 24px;
  border-bottom:1px solid var(--zlw-border);
  gap:10px}
.demo-brand {
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  font-weight:600}
.demo-brand img {
  width:22px;
  height:22px;
  object-fit:contain}
.demo-brand span {
  font-weight:400;
  color:var(--zlw-text-3);
  font-size:12px}
.demo-caption {
  font-size:11px;
  color:var(--zlw-text-3)}
.demo-layout {
  display:grid;
  grid-template-columns:260px minmax(0,1fr)}
.demo-sidebar {
  padding:28px 18px;
  border-right:1px solid var(--zlw-border);
  display:flex;
  flex-direction:column}
.demo-overline {
  font-family:var(--zlw-font-mono);
  font-size:10px;
  letter-spacing:.12em;
  color:var(--zlw-text-3)}
.demo-sidebar>.demo-overline {
  padding-left:12px}
.demo-tabs {
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-top:24px}
.demo-tabs button {
  display:flex;
  align-items:center;
  gap:12px;
  text-align:left;
  color:var(--zlw-text-2);
  background:transparent;
  border:1px solid transparent;
  border-radius:9px;
  padding:14px 12px;
  font:inherit;
  font-size:14px;
  cursor:pointer;
  min-height:64px}
.demo-tabs button:hover {
  background:var(--zlw-bg-soft)}
.demo-tabs button[aria-selected="true"] {
  background:var(--zlw-brand-soft);
  border-color:color-mix(in srgb,var(--zlw-brand) 30%,transparent);
  color:var(--zlw-text)}
.demo-tabs small {
  display:block;
  font-size:10px;
  color:var(--zlw-text-3);
  margin-top:3px}
.tab-icon {
  font-size:22px;
  color:var(--zlw-brand);
  width:24px}
.tab-arrow {
  margin-left:auto;
  color:var(--zlw-brand);
  opacity:0}
.demo-tabs [aria-selected="true"] .tab-arrow {
  opacity:1}
.demo-mantra {
  margin:auto 12px 6px;
  padding-top:38px;
  color:var(--zlw-text-2);
  font-size:19px;
  line-height:1.7;
  letter-spacing:.04em}
.demo-mantra span {
  display:block;
  font-size:9px;
  letter-spacing:.16em;
  color:var(--zlw-text-3);
  margin-top:12px}
.demo-content {
  min-width:0;
  background:var(--zlw-surface)}
.demo-panel {
  padding:26px 32px;
  min-height:448px;
  scroll-margin-top:100px}
.demo-panel[hidden] {
  display:none}
.demo-panel:not([hidden]) {
  animation:demo-enter .4s ease both}
.demo-panel-head {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px}
.demo-pill {
  font-size:10px;
  color:var(--zlw-text-2);
  border:1px solid var(--zlw-border);
  border-radius:20px;
  padding:3px 10px}
.demo-panel h2 {
  font-size:20px;
  margin-top:18px;
  letter-spacing:-.02em}
.demo-question {
  border-left:2px solid var(--zlw-brand);
  padding:8px 14px;
  margin-top:22px;
  background:var(--zlw-brand-soft);
  border-radius:0 8px 8px 0}
.demo-question>span,.demo-answer>span {
  font-size:10px;
  color:var(--zlw-brand)}
.demo-question p {
  font-size:13px;
  margin-top:4px}
.demo-answer {
  padding:12px 0}
.demo-answer>span {
  color:var(--zlw-text-3)}
.demo-answer p {
  font-size:12px;
  line-height:1.8;
  color:var(--zlw-text-2);
  margin-top:4px}
.demo-result {
  display:grid;
  grid-template-columns:1fr 1.3fr;
  gap:24px;
  border-top:1px solid var(--zlw-border);
  padding-top:16px;
  margin-top:3px}
.demo-score {
  display:flex;
  flex-direction:column}
.demo-score strong {
  font-family:var(--zlw-font-mono);
  font-size:46px;
  line-height:1.25;
  font-weight:500;
  letter-spacing:-.06em}
.demo-score strong small {
  font-size:12px;
  letter-spacing:0;
  color:var(--zlw-text-3);
  margin-left:8px}
.demo-score>span:last-child {
  font-size:10px;
  color:var(--zlw-text-3)}
.demo-bars {
  display:grid;
  gap:8px;
  align-content:center}
.demo-bars>div {
  display:flex;
  align-items:center;
  gap:12px;
  font-size:10px;
  color:var(--zlw-text-2)}
.demo-bars i {
  flex:1;
  height:4px;
  border-radius:10px;
  background:var(--zlw-bg-soft);
  overflow:hidden}
.demo-bars b {
  display:block;
  width:var(--score);
  height:100%;
  border-radius:10px;
  background:linear-gradient(90deg,var(--zlw-demo-cyan),var(--zlw-brand));
  transform-origin:left;
  animation:demo-bar 1s ease both}
.demo-bars em {
  font-style:normal;
  color:var(--zlw-text)}
.demo-insight {
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  border-top:1px solid var(--zlw-border);
  padding-top:14px;
  margin-top:20px;
  font-size:11px;
  color:var(--zlw-brand)}
.demo-insight span:last-child {
  color:var(--zlw-text-3);
  font-size:10px}
.demo-bottom {
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:10px 24px;
  border-top:1px solid var(--zlw-border);
  font-size:10px;
  color:var(--zlw-text-3)}
.demo-bottom>span:first-child {
  display:flex;
  align-items:center;
  gap:8px}
.demo-explanation {
  margin-top:20px;
  font-size:13px;
  color:var(--zlw-text-2);
  line-height:1.9}
.demo-explanation p {
  margin-top:12px}
.demo-coach {
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--zlw-text);
  font-size:12px}
.demo-coach img {
  width:20px}
.demo-source {
  display:inline-block;
  margin-top:14px;
  padding:4px 8px;
  border-radius:5px;
  background:var(--zlw-brand-soft);
  color:var(--zlw-brand);
  font-size:10px}
.demo-report-summary {
  display:flex;
  justify-content:space-between;
  gap:20px;
  align-items:center;
  margin-top:24px}
.demo-report-summary div>span {
  font-size:11px;
  color:var(--zlw-text-3)}
.demo-report-summary strong {
  display:block;
  font-size:42px;
  line-height:1.2;
  font-weight:500}
.demo-report-summary small {
  font-size:12px;
  margin-left:8px;
  color:var(--zlw-text-3)}
.demo-report-summary p {
  font-size:12px;
  color:var(--zlw-text-2)}
.demo-chart {
  width:100%;
  height:145px;
  margin-top:18px;
  color:var(--zlw-brand)}
.chart-grid {
  stroke:var(--zlw-border);
  stroke-width:1;
  stroke-dasharray:4 6;
  fill:none}
.demo-chart-label {
  display:flex;
  justify-content:space-between;
  font-size:10px;
  color:var(--zlw-text-3)}
.hero-footnote {
  display:flex;
  justify-content:center;
  gap:60px;
  font-size:11px;
  letter-spacing:.08em;
  color:var(--zlw-text-3);
  padding:28px 0 4px}
.data-band {
  background:var(--zlw-surface-warm)}

@keyframes demo-enter {
  from {
  opacity:0;
  transform:translateY(6px)}
to {
  opacity:1;
  transform:none}
}
@keyframes demo-bar {
  from {
  transform:scaleX(0)}
to {
  transform:scaleX(1)}
}

.no-js .demo-panel[hidden] {
  display:block}
.no-js .demo-tabs {
  display:none}

@media(max-width:900px) {
  .hero {
  padding-top:56px}
.demo-layout {
  grid-template-columns:210px minmax(0,1fr)}
.demo-sidebar {
  padding:24px 10px}
.demo-panel {
  padding:24px;
  min-height:470px}
.demo-result {
  gap:16px}
.demo-mantra {
  font-size:17px}
.demo-tabs button {
  gap:8px;
  padding:12px 8px}
.demo-sidebar>.demo-overline {
  font-size:8px}
}

@media(max-width:640px) {
  .nav-inner {
  height:68px;
  gap:12px}
.nav-actions {
  gap:8px;
  margin-left:auto}
.brand {
  font-size:19px;
  gap:6px}
.brand img {
  height:24px}
.nav-actions .btn {
  padding:10px 12px;
  font-size:12px;
  min-height:44px}
.hero {
  padding-top:40px}
.hero h1 {
  font-size:clamp(30px,7.8vw,49px);
  margin-top:24px}
.hero-status {
  font-size:10px;
  padding:5px 12px;
  gap:7px}
.hero-sub {
  font-size:14px;
  margin-top:20px}
.hero-ctas .btn {
  font-size:13px;
  padding:13px 17px;
  gap:10px}
.hero-note {
  font-size:10px}
.demo-shell {
  margin-top:32px;
  border-radius:12px}
.demo-top {
  padding:13px 16px}
.demo-brand span {
  display:none}
.demo-caption {
  font-size:9px}
.demo-layout {
  grid-template-columns:minmax(0,1fr)}
.demo-sidebar {
  padding:10px;
  border-right:0;
  border-bottom:1px solid var(--zlw-border)}
.demo-sidebar>.demo-overline,.demo-mantra {
  display:none}
.demo-tabs {
  flex-direction:row;
  margin:0;
  gap:5px}
.demo-tabs button {
  justify-content:center;
  flex:1;
  min-width:0;
  min-height:44px;
  padding:10px 4px;
  font-size:12px;
  gap:5px}
.demo-tabs small,.tab-arrow {
  display:none}
.tab-icon {
  font-size:17px;
  width:18px}
.demo-panel {
  padding:20px 16px;
  min-height:480px}
.demo-panel h2 {
  font-size:17px}
.demo-question p {
  font-size:12px}
.demo-result {
  grid-template-columns:1fr;
  gap:12px}
.demo-score {
  flex-direction:row;
  flex-wrap:wrap;
  align-items:baseline;
  gap:8px}
.demo-score strong {
  font-size:34px}
.demo-score>span:last-child {
  width:100%}
.demo-bars>div {
  font-size:10px}
.demo-bottom {
  padding:10px 14px;
  font-size:9px}
.demo-bottom>span:last-child {
  max-width:125px;
  text-align:right}
.hero-footnote {
  gap:14px;
  font-size:9px;
  letter-spacing:0;
  padding-top:22px}
.demo-report-summary p {
  font-size:10px}
.demo-report-summary {
  gap:12px}
.demo-chart {
  height:auto}
.demo-insight {
  margin-top:16px}
.hero-gradient {
  white-space:nowrap}
}

@media(prefers-reduced-motion:reduce) {
  .demo-panel:not([hidden]),.demo-bars b {
  animation:none}
}

/* Keep all panels in one grid cell so tab changes never shift the page. */
.demo-content { display: grid; }
.demo-panel { grid-area: 1 / 1; min-width: 0; }
.demo-panel[hidden] { display: block; visibility: hidden; pointer-events: none; }
.no-js .demo-content { display: block; }
.no-js .demo-panel[hidden] { visibility: visible; pointer-events: auto; }