:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --ink: #101318;
  --muted: #626a76;
  --line: #dce1e8;
  --blue: #145cf5;
  --blue-deep: #0f48c9;
  --blue-soft: #eaf0ff;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.section-pad { padding: 110px 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247,248,250,.88);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid rgba(220,225,232,.72);
}
.nav-wrap { height: 76px; display: flex; align-items: center; justify-content: space-between; }
.brand { font-size: 1.05rem; font-weight: 800; letter-spacing: .14em; }
.brand span { color: var(--blue); }
nav { display: flex; gap: 30px; font-size: .94rem; font-weight: 600; }
nav a { color: #323843; position: relative; padding: 27px 0 25px; transition: color .2s ease; }
nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 17px; height: 2px; background: var(--blue); transition: right .22s ease; }
nav a:hover, nav a.is-active { color: var(--blue); }
nav a:hover::after, nav a.is-active::after { right: 0; }

.hero {
  min-height: 760px;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  align-items: center;
  gap: 54px;
  padding-top: 70px;
  padding-bottom: 70px;
}
.eyebrow { color: var(--blue); text-transform: uppercase; letter-spacing: .14em; font-size: .76rem; font-weight: 800; margin: 0 0 18px; }
.hero h1 {
  font-size: clamp(3.55rem, 5.65vw, 6rem);
  line-height: .92;
  letter-spacing: -.062em;
  margin: 0;
  max-width: 820px;
}
.hero h1 span { color: var(--blue); }
.hero-text { max-width: 650px; font-size: clamp(1.06rem, 1.9vw, 1.28rem); color: var(--muted); margin: 34px 0 0; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border-radius: 999px; font-weight: 700; transition: transform .18s ease, background .18s ease; }
.button.primary { background: var(--blue); color: white; }
.button.primary:hover { background: var(--blue-deep); transform: translateY(-1px); }
.text-link { font-weight: 700; }
.text-link span { color: var(--blue); transition: transform .18s ease; display: inline-block; }
.text-link:hover span { transform: translateX(4px); }

.hero-visual { min-width: 0; }
.visual-field { position: relative; padding: 24px 0 10px; }
.hero-visual svg { width: 100%; height: auto; overflow: visible; display: block; }
.contour { fill: none; stroke: #9db6ef; stroke-width: 1.7; opacity: .9; vector-effect: non-scaling-stroke; }
.c0 { stroke: #d8e1f7; }
.c1 { stroke: #a9c0f1; }
.c2 { stroke: #6e96ef; stroke-width: 2.2; }
.c3 { stroke: #b8c9ef; }
.c4 { stroke: #d0dbef; }
.c5 { stroke: #e0e7f7; }
.node:not(.halo) { fill: white; stroke: var(--blue); stroke-width: 4; }
.halo { fill: var(--blue-soft); stroke: none; opacity: .65; transform-origin: center; animation: pulse 3.4s ease-in-out infinite; }
.h2 { animation-delay: .7s; }
.h3 { animation-delay: 1.4s; }
.axis { fill: none; stroke: #171b22; stroke-width: 1.35; stroke-dasharray: 4 8; opacity: .48; }
.hero-visual text { fill: #38404c; font-size: 13px; font-weight: 700; letter-spacing: .08em; }
.visual-caption { max-width: 360px; margin: 6px 0 0 auto; color: #818a96; font-size: .78rem; line-height: 1.45; text-align: right; }
@keyframes pulse { 0%,100% { opacity:.36; transform: scale(.82); } 50% { opacity:.72; transform: scale(1.08); } }

.section-heading { max-width: 800px; margin-bottom: 54px; }
.section-heading.narrow { max-width: 700px; }
.section-heading h2, .belief h2, .closing h2 { font-size: clamp(2.3rem, 4vw, 4.3rem); line-height: 1.02; letter-spacing: -.045em; margin: 0 0 18px; }
.section-heading > p:last-child, .belief-copy > p:last-child { color: var(--muted); font-size: 1.08rem; }

.world-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.world { padding: 46px 34px 48px 0; min-height: 390px; display: flex; flex-direction: column; transition: background .22s ease, padding .22s ease; }
.world + .world { border-left: 1px solid var(--line); padding-left: 34px; }
.world-number { color: #8a93a0; font-size: .78rem; font-weight: 700; letter-spacing: .12em; }
.world h3 { font-size: 2.55rem; letter-spacing: -.04em; margin: 58px 0 8px; }
.world-tagline { font-weight: 700; margin: 0 0 18px; }
.world > p:not(.world-tagline) { color: var(--muted); max-width: 31ch; }
.world a { color: var(--blue); font-weight: 700; margin-top: auto; padding-top: 30px; }
.world a span { display: inline-block; transition: transform .18s ease; }
.world a:hover span { transform: translateX(4px); }

.now-band { background: #11151b; color: white; }
.now-band .eyebrow { color: #7ea5ff; }
.now-band .section-heading > p:last-child { color: #aeb6c1; }
.experience-grid { display: grid; grid-template-columns: 1.2fr .8fr; grid-template-areas: "featured gd" "featured mc" "pro pro"; gap: 1px; background: #2a3039; border: 1px solid #2a3039; }
.experience { background: #151a21; padding: 38px; min-height: 250px; display: flex; flex-direction: column; position: relative; overflow: hidden; }
.experience:nth-child(2) { grid-area: gd; }
.experience:nth-child(3) { grid-area: mc; }
.experience:nth-child(4) { grid-area: pro; min-height: 220px; }
.experience-featured { grid-area: featured; min-height: 501px; background: #131922; }
.experience-featured::after { content:""; position:absolute; width:280px; height:280px; border:1px solid #28498a; border-radius:50%; right:-115px; bottom:-125px; opacity:.4; }
.experience-topline { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.pill { width: fit-content; border: 1px solid #3b4654; border-radius: 999px; padding: 5px 9px; font-size: .68rem; font-weight: 800; letter-spacing: .12em; color: #c5ced9; }
.live-dot { color:#9fb8ed; font-size:.76rem; font-weight:700; letter-spacing:.03em; }
.live-dot i { display:inline-block; width:7px; height:7px; background:#7ea5ff; border-radius:50%; margin-right:7px; box-shadow:0 0 0 5px rgba(126,165,255,.09); }
.experience h3 { font-size: 1.55rem; margin: 45px 0 10px; letter-spacing: -.02em; }
.experience-featured h3 { font-size: clamp(2rem, 3vw, 3rem); margin-top: 82px; max-width: 12ch; }
.experience p { color: #aeb6c1; max-width: 45ch; }
.status { color: #7ea5ff; font-size: .82rem; font-weight: 700; margin-top: auto; position: relative; z-index: 1; }
.telemetry-strip { height: 92px; display:flex; align-items:flex-end; gap:8px; margin:42px 0 34px; max-width:430px; border-bottom:1px solid #303946; position:relative; z-index:1; }
.telemetry-strip span { flex:1; height:var(--h); min-width:4px; background:linear-gradient(to top, #31589d, #7ea5ff); border-radius:3px 3px 0 0; opacity:.9; }

.belief { display: grid; grid-template-columns: 120px 1fr; gap: 60px; align-items: start; }
.belief-rule { width: 100%; height: 2px; background: var(--blue); margin-top: 23px; }
.belief-copy { max-width: 850px; }

.learning { border-top: 1px solid var(--line); }
.sequence { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: clamp(1.25rem, 2.4vw, 2.15rem); font-weight: 700; letter-spacing: -.03em; }
.sequence-step { appearance:none; border:0; border-bottom:2px solid #aeb8c8; background:transparent; color:var(--ink); padding:7px 0 5px; cursor:pointer; font-weight:700; transition: color .18s ease, border-color .18s ease, transform .18s ease; }
.sequence-step:hover, .sequence-step:focus-visible, .sequence-step.is-active { color:var(--blue); border-bottom-color:var(--blue); }
.sequence-step:hover { transform:translateY(-2px); }
.sequence-step:focus-visible { outline:2px solid var(--blue); outline-offset:5px; border-radius:2px; }
.sequence i { font-style: normal; color: #8e96a2; font-weight: 400; }
.sequence-note { margin-top:28px; max-width:760px; min-height:58px; padding:18px 20px; border-left:3px solid var(--blue); background:rgba(234,240,255,.56); color:#4f5865; }
.sequence-note strong { color:var(--ink); }

.closing { background: var(--surface); border-top: 1px solid var(--line); }
.closing-inner { padding: 100px 0 110px; }
.choice-grid { margin-top: 48px; border-top: 1px solid var(--line); }
.choice-grid a { display: grid; grid-template-columns: 1fr auto; align-items: center; padding: 25px 0; border-bottom: 1px solid var(--line); font-size: 1.08rem; }
.choice-grid a strong { color: var(--blue); font-size: 1.1rem; }
.choice-grid a:hover span { transform: translateX(6px); }
.choice-grid span { transition: transform .2s ease; }

footer { background: #0e1116; color: white; }
.footer-inner { min-height: 140px; display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 30px; }
.footer-inner p { color: #9ba4b0; margin: 0; font-size: .88rem; }

@media (hover: hover) and (pointer: fine) {
  .world:hover { background: rgba(255,255,255,.52); }
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 90px; gap: 24px; }
  .hero-visual { max-width: 680px; }
  .visual-caption { margin-left: 0; text-align:left; }
  .world-grid { grid-template-columns: 1fr; }
  .world { min-height: 300px; padding-left: 0 !important; }
  .world + .world { border-left: none; border-top: 1px solid var(--line); }
  .world h3 { margin-top: 36px; }
  .experience-grid { grid-template-columns: 1fr; grid-template-areas: "featured" "gd" "mc" "pro"; }
  .experience-featured { min-height: 430px; }
  .experience:nth-child(4) { min-height: 250px; }
  .belief { grid-template-columns: 1fr; gap: 24px; }
  .belief-rule { width: 80px; }
}

@media (max-width: 620px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .section-pad { padding: 78px 0; }
  .nav-wrap { height: 68px; }
  nav { gap: 14px; font-size: .79rem; }
  nav a { padding: 24px 0 22px; }
  nav a::after { bottom: 14px; }
  .hero { padding-top: 64px; padding-bottom: 44px; }
  .hero h1 { font-size: clamp(3.05rem, 15vw, 4.35rem); line-height:.94; }
  .hero-text { margin-top:26px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap:18px; }
  .hero-visual { margin-top: 12px; }
  .visual-field { padding-top:6px; }
  .world { padding-top: 34px; padding-bottom: 34px; }
  .experience { padding: 28px; }
  .experience-featured { min-height: 420px; }
  .experience-featured h3 { margin-top:62px; }
  .telemetry-strip { gap:5px; }
  .sequence { gap:9px; font-size:1.18rem; }
  .sequence i { font-size:.9rem; }
  .footer-inner { grid-template-columns: 1fr; padding: 38px 0; gap: 8px; }
}

@media (max-width: 430px) {
  .brand { font-size:.96rem; }
  nav { gap:10px; font-size:.73rem; }
  .hero h1 { font-size: clamp(2.8rem, 14vw, 3.8rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; animation-iteration-count: 1 !important; }
}