:root{
  color-scheme:light;
  --bg:#f6f4f9;--panel:rgba(255,255,255,.72);--text:#211d29;--muted:#6c6573;
  --line:rgba(67,52,91,.11);--purple:#7957d4;--cyan:#42bdcf;--shadow:0 24px 80px rgba(48,34,70,.10)
}
html[data-theme="vibrant-dark"]{
  color-scheme:dark;
  --bg:#070910;--panel:rgba(12,15,25,.76);--text:#f4f5f9;--muted:#aeb4c2;
  --line:rgba(255,255,255,.085);--purple:#a47cf0;--cyan:#59d8e7;--shadow:0 30px 90px rgba(0,0,0,.35)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;min-height:100vh;color:var(--text);background:var(--bg);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.gateway-bg{position:fixed;z-index:-2;inset:0;overflow:hidden;pointer-events:none}
.gateway-bg:before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 12% 10%,rgba(128,88,219,.14),transparent 30%),radial-gradient(circle at 88% 17%,rgba(68,199,217,.11),transparent 28%),radial-gradient(circle at 55% 92%,rgba(222,74,146,.055),transparent 31%)}
.gateway-bg i{position:absolute;width:40vw;height:40vw;max-width:620px;max-height:620px;border:1px solid rgba(121,87,212,.065);border-radius:50%}.gateway-bg i:nth-child(1){left:-15vw;top:14vh}.gateway-bg i:nth-child(2){right:-16vw;top:-3vh}.gateway-bg i:nth-child(3){left:35vw;bottom:-29vw}
.gateway-top{width:min(1220px,calc(100% - 28px));min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px;margin:14px auto 0;padding:9px 11px 9px 14px;border:1px solid var(--line);border-radius:21px;background:var(--panel);box-shadow:var(--shadow);backdrop-filter:blur(24px) saturate(135%);-webkit-backdrop-filter:blur(24px) saturate(135%)}
.gateway-brand{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none}.gateway-brand>span:last-child b,.gateway-brand>span:last-child small{display:block}.gateway-brand>span:last-child b{font-size:15px;letter-spacing:-.035em}.gateway-brand>span:last-child small{margin-top:3px;color:var(--muted);font-size:8px;font-weight:900;letter-spacing:.12em}
.gateway-orb{position:relative;width:44px;height:44px;display:grid;place-items:center;border-radius:50%;color:#fff;background:linear-gradient(135deg,#805bd9,#45c3d2);font-size:18px;font-weight:950;font-style:italic}.gateway-orb i{position:absolute;inset:-4px;border:1px solid rgba(84,212,227,.19);border-radius:50%}.gateway-orb i:last-child{inset:10px -7px;transform:rotate(30deg);opacity:.55}
.gateway-theme{width:43px;height:43px;border:1px solid var(--line);border-radius:12px;color:var(--text);background:rgba(127,127,127,.025);cursor:pointer}
.gateway-main{width:min(1180px,calc(100% - 30px));margin:0 auto;padding:86px 0 48px}
.gateway-hero{max-width:820px;margin:0 auto 42px;text-align:center}.gateway-kicker{color:#7c61bd;font-size:9px;font-weight:950;letter-spacing:.16em}.gateway-hero h1{margin:14px 0 17px;font-size:clamp(52px,8vw,92px);line-height:.91;letter-spacing:-.075em}.gateway-hero h1 em{color:transparent;font-style:normal;background:linear-gradient(90deg,var(--purple),var(--cyan));background-clip:text;-webkit-background-clip:text}.gateway-hero p{max-width:680px;margin:0 auto;color:var(--muted);font-size:15px;line-height:1.7}
.gateway-doors{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.gateway-door{position:relative;min-height:430px;display:flex;flex-direction:column;gap:25px;padding:28px;border:1px solid var(--line);border-radius:28px;background:var(--panel);box-shadow:var(--shadow);overflow:hidden;backdrop-filter:blur(22px) saturate(130%);-webkit-backdrop-filter:blur(22px) saturate(130%)}
.gateway-door:before{content:'';position:absolute;z-index:-1;width:280px;height:280px;border-radius:50%;filter:blur(5px);opacity:.12}.viewer-door:before{right:-90px;top:-110px;background:var(--cyan)}.creator-door:before{left:-95px;bottom:-120px;background:var(--purple)}
.door-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.door-icon{width:48px;height:48px;display:grid;place-items:center;border:1px solid var(--line);border-radius:14px;background:rgba(127,127,127,.035);font-size:17px}.door-status{color:var(--muted);font-size:8px;font-weight:950;letter-spacing:.13em}
.gateway-door h2{margin:0;font-size:38px;letter-spacing:-.055em}.gateway-door p{margin:9px 0 0;color:var(--muted);font-size:13px;line-height:1.65}
.door-features{display:flex;flex-wrap:wrap;gap:6px}.door-features span{min-height:29px;display:inline-flex;align-items:center;padding:0 9px;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:rgba(127,127,127,.025);font-size:8px;font-weight:850}
.door-button{min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding:0 17px;border:1px solid var(--line);border-radius:15px;color:inherit;text-decoration:none;font-size:11px;font-weight:950;transition:.16s ease}.door-button b{font-size:20px;font-weight:500}.door-button.primary{color:#fff;border-color:rgba(76,191,210,.16);background:linear-gradient(135deg,#6653c4,#3bb7c9)}.door-button.secondary{background:rgba(127,127,127,.035)}.door-button:hover{transform:translateY(-2px);filter:brightness(1.04)}
.door-hint{color:var(--muted);font-size:8px;line-height:1.5}.creator-door.viewer-locked{opacity:.64}.creator-door.viewer-locked .door-button{pointer-events:none}.creator-door.viewer-locked .door-button span{font-size:0}.creator-door.viewer-locked .door-button span:after{content:'Viewer session active';font-size:11px}
.gateway-plain-language{max-width:840px;margin:20px auto 0;padding:15px 18px;border:1px solid var(--line);border-radius:16px;color:var(--muted);background:rgba(127,127,127,.02);text-align:center}.gateway-plain-language>span{color:#7c61bd;font-size:8px;font-weight:950;letter-spacing:.12em}.gateway-plain-language p{margin:6px 0 0;font-size:10px;line-height:1.55}.gateway-plain-language b{color:var(--text)}
.gateway-footer{width:min(1180px,calc(100% - 30px));display:flex;justify-content:space-between;gap:15px;margin:0 auto;padding:22px 0 34px;border-top:1px solid var(--line);color:var(--muted);font-size:9px}
@media(max-width:760px){.gateway-main{padding-top:58px}.gateway-doors{grid-template-columns:1fr}.gateway-door{min-height:360px;padding:22px}.gateway-hero h1{font-size:clamp(48px,15vw,72px)}.gateway-top{min-height:64px}.gateway-brand>span:last-child small{display:none}}
@media(max-width:480px){.gateway-main,.gateway-footer{width:calc(100% - 20px)}.gateway-top{width:calc(100% - 14px)}.gateway-door h2{font-size:33px}.gateway-footer{align-items:flex-start;flex-direction:column}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}