.utility-bar{height:36px;background:#202735;color:#d9deea;font-size:11px;font-weight:650;letter-spacing:.01em}.utility-inner{width:min(1440px,calc(100% - 64px));height:100%;margin:auto;display:flex;align-items:center;justify-content:space-between}.utility-inner div{display:flex;gap:24px}.utility-inner a:hover{color:#fff}
.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);background:var(--nav);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.nav{width:min(1440px,calc(100% - 64px));min-height:76px;margin:auto;display:flex;align-items:center;gap:46px}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-size:16px;font-weight:800;letter-spacing:-.02em}.brand-mark{width:32px;height:32px;display:grid;place-items:center;border-radius:8px;background:var(--ink);color:var(--surface);font-size:16px}.nav-links{display:flex;align-items:center;gap:30px}.nav-links a{color:var(--ink-2);font-size:13px;font-weight:650}.nav-links a:hover{color:var(--ink)}.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}.nav-text-button,.footer-links button{border:0;background:transparent;cursor:pointer}.nav-text-button{padding:10px 7px;color:var(--ink);font-size:13px;font-weight:700}.nav-primary{height:44px;padding:0 20px;border:0;border-radius:24px;background:var(--accent-dark);color:var(--surface);font-size:13px;font-weight:750;cursor:pointer}.nav-primary:hover{filter:brightness(1.12)}#theme-toggle-slot{display:inline-flex}.wgo-theme-toggle{border-color:var(--line)!important;color:var(--ink)!important}
.hero{position:relative;min-height:650px;display:flex;align-items:center;overflow:hidden;padding:80px max(32px,calc((100vw - 1320px)/2));background:
  radial-gradient(circle at 18% 12%,rgba(255,255,255,.66),transparent 31%),
  linear-gradient(115deg,rgba(255,255,255,.28),transparent 46%),
  repeating-linear-gradient(0deg,rgba(23,32,51,.018) 0,rgba(23,32,51,.018) 1px,transparent 1px,transparent 4px),
  var(--hero)}
html[data-wgo-theme="dark"] .hero{background:radial-gradient(circle at 18% 12%,rgba(129,140,248,.10),transparent 32%),linear-gradient(115deg,rgba(255,255,255,.035),transparent 46%),repeating-linear-gradient(0deg,rgba(255,255,255,.016) 0,rgba(255,255,255,.016) 1px,transparent 1px,transparent 4px),var(--hero)}
.hero-card{position:relative;z-index:4;min-width:0;width:min(650px,54%);padding:46px 48px;border:1px solid rgba(23,32,51,.10);border-radius:14px;background:rgba(255,255,255,.91);box-shadow:0 30px 90px rgba(54,49,43,.16);backdrop-filter:blur(8px)}html[data-wgo-theme="dark"] .hero-card{background:rgba(17,21,31,.89);border-color:rgba(255,255,255,.11);box-shadow:0 30px 90px rgba(0,0,0,.3)}
.eyebrow{margin:0 0 18px;color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.hero h1{max-width:600px;margin:0;overflow-wrap:anywhere;color:var(--ink);font-size:clamp(42px,4.7vw,68px);line-height:1.02;letter-spacing:-.055em;font-weight:750}.hero-copy{max-width:560px;margin:24px 0 0;color:var(--ink-2);font-size:17px;line-height:1.7}.hero-actions{display:flex;align-items:center;gap:12px;margin-top:32px}.hero-primary,.hero-secondary{min-height:48px;display:inline-flex;align-items:center;justify-content:center;border-radius:26px;padding:0 24px;font-size:14px;font-weight:750}.hero-primary{border:0;background:var(--accent-dark);color:var(--surface);cursor:pointer}.hero-primary:hover{transform:translateY(-1px)}.hero-secondary{border:1px solid var(--line);background:var(--surface);color:var(--ink)}.hero-secondary:hover{border-color:var(--ink-2)}.hero-note{margin:18px 0 0;color:var(--muted);font-size:11px;font-weight:600}
.study-scene{position:absolute;z-index:1;inset:0 0 0 41%;pointer-events:none}.scene-orbit{position:absolute;border:1px solid rgba(23,32,51,.13);border-radius:50%;transform:rotate(-14deg)}.orbit-one{right:-110px;top:48px;width:760px;height:500px}.orbit-two{right:120px;top:145px;width:430px;height:260px}html[data-wgo-theme="dark"] .scene-orbit{border-color:rgba(255,255,255,.1)}
.paper{position:absolute;border:1px solid rgba(23,32,51,.12);background:#fdfdfb;color:#2d3748;box-shadow:0 26px 70px rgba(48,42,35,.18)}.paper-back{right:5%;top:70px;width:370px;height:455px;padding:38px;transform:rotate(7deg)}.paper-back span{font-size:11px;font-weight:800;letter-spacing:.18em}.paper-back i{display:block;width:100%;height:8px;margin-top:24px;background:#e8e8e3}.paper-back i:nth-of-type(2){width:78%}.paper-back i:nth-of-type(3){width:88%}.paper-back i:nth-of-type(4){width:50%}.paper-front{right:19%;top:117px;width:390px;height:480px;padding:38px;transform:rotate(-4deg)}.paper-head{display:flex;justify-content:space-between;font-size:11px;font-weight:800}.paper-head b{color:#7b8190}.paper-line{height:7px;width:78%;margin-top:24px;background:#e8e9e6}.paper-line.wide{width:100%}.paper-line.short{width:48%}.formula{width:100%;margin:10px 0;padding:10px 8px;border:1px solid #d6d7d3;background:#f5f6f2;text-align:left;font-family:'Fira Code','Cascadia Code','SF Mono',Consolas,monospace;font-size:12px;line-height:1.5;color:#172033;overflow:hidden}.formula pre{margin:0;padding:0;font-family:inherit;font-size:inherit;line-height:inherit}
.shape{position:absolute;box-shadow:0 20px 50px rgba(35,41,58,.22)}.shape-cube{right:5%;top:275px;width:145px;height:145px;transform:rotate(10deg);background:linear-gradient(135deg,#ff6558,#e1a92e 52%,#4054c6)}.shape-cube:before{content:"";position:absolute;inset:15px;background:linear-gradient(135deg,#f9df51,#5cb995 55%,#3d4c84);clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%)}.shape-cylinder{right:37%;top:43px;width:100px;height:122px;border-radius:50px;background:linear-gradient(90deg,#f16158,#f4ae3c 45%,#617f58 70%,#394061)}.shape-cylinder:before{content:"";position:absolute;left:0;right:0;top:0;height:32px;border-radius:50%;background:linear-gradient(90deg,#ee655b,#f2c64a,#4f865b)}.scene-chip{position:absolute;padding:12px 17px;border:1px solid rgba(23,32,51,.12);border-radius:9px;background:rgba(255,255,255,.9);color:#172033;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;box-shadow:0 12px 35px rgba(35,41,58,.12)}.chip-one{right:29%;bottom:46px}.chip-two{right:6%;bottom:125px}html[data-wgo-theme="dark"] .scene-chip{background:rgba(17,21,31,.91);color:#f4f6fa;border-color:rgba(255,255,255,.12)}
.signal-strip{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line);background:var(--surface)}.signal-strip div{min-height:118px;display:flex;flex-direction:column;justify-content:center;padding:24px 38px;border-right:1px solid var(--line)}.signal-strip div:last-child{border-right:0}.signal-strip strong{color:var(--ink);font-size:24px;letter-spacing:-.04em}.signal-strip span{margin-top:6px;color:var(--muted);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.1em}
.feature-section{width:min(1280px,calc(100% - 64px));margin:0 auto;padding:132px 0;display:grid;grid-template-columns:minmax(0,.85fr) minmax(420px,1.15fr);gap:100px;align-items:center}.section-intro h2,.security-section h2,.closing-cta h2{margin:0;color:var(--ink);font-size:clamp(34px,4vw,56px);line-height:1.06;letter-spacing:-.05em}.section-intro>p:last-child{max-width:560px;margin:26px 0 0;color:var(--muted);font-size:16px;line-height:1.75}
.dashboard-preview{height:430px;display:grid;grid-template:58px 1fr/110px 1fr;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface);box-shadow:0 28px 80px rgba(31,38,56,.13)}.preview-top{grid-column:1/-1;display:flex;align-items:center;gap:7px;padding:0 20px;border-bottom:1px solid var(--line)}.preview-top span,.preview-top i{width:8px;height:8px;border-radius:50%;background:#ff7168}.preview-top i{background:#f6c453}.preview-top i:last-child{background:#5bbf8a}.preview-side{display:grid;align-content:start;gap:16px;padding:26px 20px;border-right:1px solid var(--line);background:var(--soft)}.preview-side b{height:7px;border-radius:4px;background:var(--line)}.preview-side b:nth-child(2){width:72%}.preview-side b:nth-child(3){width:84%}.preview-main{padding:38px;background:linear-gradient(135deg,rgba(64,84,198,.06),transparent 52%)}.preview-label{display:block;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.preview-card{width:78%;height:125px;margin-top:22px;border:1px solid var(--line);border-radius:10px;background:var(--surface);box-shadow:inset 5px 0 0 var(--accent)}.preview-card.small{width:56%;height:82px;margin-top:16px;box-shadow:inset 5px 0 0 #52a992}
.principles{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--soft)}.principles article{min-height:310px;padding:58px max(34px,5vw);border-right:1px solid var(--line)}.principles article:last-child{border-right:0}.principles span{color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.15em}.principles h3{margin:58px 0 14px;color:var(--ink);font-size:24px;letter-spacing:-.03em}.principles p{max-width:360px;margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.security-section{width:min(1280px,calc(100% - 64px));margin:auto;padding:120px 0;display:grid;grid-template-columns:1fr .8fr;gap:100px;align-items:end}.security-copy p{margin:0;color:var(--muted);font-size:16px;line-height:1.75}.security-copy a{display:inline-flex;margin-top:24px;color:var(--ink);font-size:13px;font-weight:800}.security-copy a span{margin-left:9px}.closing-cta{min-height:280px;display:flex;align-items:center;justify-content:space-between;gap:50px;padding:58px max(32px,calc((100vw - 1280px)/2));background:#dfe4ff;color:#172033}.closing-cta .eyebrow{color:#4054c6}.closing-cta h2{color:#172033}.closing-cta button{height:52px;padding:0 28px;border:0;border-radius:28px;background:#172033;color:#fff;font-weight:750;cursor:pointer;white-space:nowrap}
.footer{background:var(--footer);color:#aeb7c6}.footer-main{width:min(1280px,calc(100% - 64px));min-height:210px;margin:auto;display:grid;grid-template-columns:1fr 1.5fr 1fr;gap:60px;align-items:center}.footer-brand{color:#fff}.footer-brand .brand-mark{background:#fff;color:#111827}.footer-main p{max-width:490px;margin:0;font-size:12px;line-height:1.7}.footer-links{display:flex;justify-content:flex-end;gap:22px;font-size:12px;font-weight:700}.footer-links a:hover,.footer-links button:hover{color:#fff}.footer-links button{padding:0;color:inherit}.footer-legal{min-height:64px;width:min(1280px,calc(100% - 64px));margin:auto;display:flex;align-items:center;justify-content:space-between;border-top:1px solid rgba(255,255,255,.1);font-size:11px}
@media(max-width:1050px){.nav{gap:25px}.nav-links{display:none}.hero{min-height:auto;align-items:flex-start;padding-top:70px;padding-bottom:70px}.hero-card{width:min(760px,100%)}.study-scene{display:none}.feature-section{grid-template-columns:1fr;gap:54px}.section-intro{max-width:720px}.security-section{grid-template-columns:1fr;gap:42px}.footer-main{grid-template-columns:1fr 1fr}.footer-main p{display:none}}
@media(max-width:720px){.utility-bar{display:none}.nav{width:calc(100% - 32px);min-width:0;min-height:68px;gap:12px}.brand span:last-child{display:none}.nav-text-button{display:none}.nav-actions{min-width:0;gap:8px}.nav-primary{height:40px;padding:0 14px;font-size:12px}#theme-toggle-slot{display:none}.hero{min-height:720px;padding:34px 16px 0;align-items:flex-start}.hero-card{width:100%;max-width:100%;padding:32px 26px}.hero h1{font-size:clamp(39px,11vw,50px)}.hero-copy{font-size:15px}.hero-actions{align-items:stretch;flex-direction:column}.hero-primary,.hero-secondary{width:100%}.study-scene{inset:370px -170px -130px 7%}.paper-front{right:23%;top:112px;width:310px;height:380px;padding:28px}.paper-back{right:4%;width:300px;height:360px}.shape-cube{right:4%;top:265px;width:105px;height:105px}.scene-chip,.scene-orbit{display:none}.signal-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.signal-strip div:nth-child(2){border-right:0}.signal-strip div{min-width:0;min-height:94px;padding:20px}.signal-strip strong{font-size:19px}.signal-strip span{overflow-wrap:anywhere}.feature-section,.security-section{width:calc(100% - 32px);padding:84px 0}.feature-section{grid-template-columns:minmax(0,1fr)}.dashboard-preview{height:300px;grid-template-columns:70px 1fr}.preview-main{padding:24px}.principles{grid-template-columns:1fr}.principles article{min-height:230px;border-right:0;border-bottom:1px solid var(--line);padding:42px 24px}.principles article:last-child{border-bottom:0}.principles h3{margin-top:34px}.closing-cta{align-items:flex-start;flex-direction:column;padding:54px 24px}.closing-cta button{width:100%}.footer-main{width:calc(100% - 32px);grid-template-columns:1fr;gap:28px;padding:50px 0}.footer-links{justify-content:flex-start}.footer-legal{width:calc(100% - 32px)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.wgo-auth-spinner{animation:none}.hero-primary:hover{transform:none}}

/* Search overflow and rotating cross-subject question card */
.global-search-results{max-height:min(420px,52vh)!important;overflow-x:hidden!important;overflow-y:auto!important;overscroll-behavior:contain;scrollbar-gutter:stable}
.global-search-results a:focus-visible{background:var(--soft);outline:0}
.paper-back span{display:none}.paper-back i:first-child{margin-top:0}
.paper-front{transition:opacity .2s ease,transform .28s ease}
.paper-front.is-switching{opacity:.15;transform:rotate(-4deg) translateY(8px)}
.paper-head{gap:18px}.paper-head span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.paper-head b{white-space:nowrap}
.paper-question{min-height:46px;margin:22px 0 10px;color:#344054;font-size:13px;font-weight:700;line-height:1.5}
.formula{min-height:145px;overflow:auto}.formula pre{white-space:pre-wrap}

/* Search and public discovery */
.global-search{position:relative;z-index:6;margin:28px 0 22px;max-width:720px}.global-search>label{display:block;margin-bottom:9px;color:var(--muted);font-size:12px;font-weight:750;letter-spacing:.08em;text-transform:uppercase}.global-search-box{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;min-height:58px;padding:6px 7px 6px 17px;border:1px solid var(--line);border-radius:14px;background:var(--surface);box-shadow:0 15px 45px rgba(15,23,42,.12)}.global-search-icon{width:25px;height:25px;fill:none;stroke:var(--accent);stroke-width:2;stroke-linecap:round}.global-search-field{position:relative;min-width:0;height:46px}.global-search-field input{display:block;width:100%;min-width:0;height:46px;border:0;outline:0;padding:0 13px;background:transparent;color:var(--ink);font:600 16px Inter,system-ui,sans-serif}.global-search-prompt{position:absolute;left:13px;right:8px;top:50%;overflow:hidden;color:var(--muted);font:600 16px Inter,system-ui,sans-serif;white-space:nowrap;text-overflow:ellipsis;pointer-events:none;opacity:1;transform:translateY(-50%);transition:opacity .18s ease,transform .18s cubic-bezier(.2,.8,.2,1)}.global-search-prompt.is-leaving{opacity:0;transform:translateY(calc(-50% - 10px))}.global-search-prompt.is-entering{opacity:0;transform:translateY(calc(-50% + 10px));transition:none}.global-search-field.has-value .global-search-prompt{opacity:0}.global-search-box button{height:44px;border:0;border-radius:9px;padding:0 18px;background:var(--ink);color:var(--surface);font:750 13px Inter,system-ui,sans-serif;cursor:pointer}.global-search-results{position:absolute;left:0;right:0;top:calc(100% + 8px);overflow:hidden;border:1px solid var(--line);border-radius:14px;background:var(--surface);box-shadow:0 24px 70px rgba(15,23,42,.2)}.global-search-results a{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:13px 16px;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none}.global-search-results a:last-child{border-bottom:0}.global-search-results a:hover{background:var(--soft)}.global-search-results strong{font-size:13px}.global-search-results span,.global-search-results p{color:var(--muted);font-size:11px}.global-search-results p{margin:0;padding:16px}
@media(max-width:760px){.global-search-box{grid-template-columns:auto minmax(0,1fr)}.global-search-box button{grid-column:1/-1;width:100%}.global-search-results a{align-items:flex-start;flex-direction:column;gap:4px}}

/* Apple design pass: calm materials, optical type and physical response */
html[data-wgo-design="apple"] .utility-bar{height:30px;background:#1d1d1f;color:#f5f5f7;font-weight:560}
html[data-wgo-design="apple"] .site-header{border-bottom:0}
html[data-wgo-design="apple"] .nav{min-height:70px}
html[data-wgo-design="apple"] .nav-links a{font-size:12px;font-weight:590;letter-spacing:-.01em}
html[data-wgo-design="apple"] .nav-primary,
html[data-wgo-design="apple"] .hero-primary,
html[data-wgo-design="apple"] .closing-cta button{background:#0071e3;color:#fff;border-radius:999px;box-shadow:none}
html[data-wgo-theme="dark"][data-wgo-design="apple"] .nav-primary,
html[data-wgo-theme="dark"][data-wgo-design="apple"] .hero-primary{background:#2997ff;color:#fff}
html[data-wgo-design="apple"] .nav-primary:hover,
html[data-wgo-design="apple"] .hero-primary:hover,
html[data-wgo-design="apple"] .closing-cta button:hover{background:#0077ed;transform:scale(1.015)}
html[data-wgo-design="apple"] .hero{min-height:690px;background:radial-gradient(circle at 75% 24%,rgba(0,113,227,.14),transparent 34%),radial-gradient(circle at 15% 5%,rgba(175,82,222,.1),transparent 28%),#f5f5f7}
html[data-wgo-theme="dark"][data-wgo-design="apple"] .hero{background:radial-gradient(circle at 75% 24%,rgba(41,151,255,.16),transparent 36%),radial-gradient(circle at 15% 5%,rgba(191,90,242,.12),transparent 30%),#101012}
html[data-wgo-design="apple"] .hero-card{border:1px solid rgba(255,255,255,.52);border-radius:28px;background:rgba(255,255,255,.72);box-shadow:0 2px 3px rgba(0,0,0,.03),0 30px 90px rgba(0,0,0,.11);backdrop-filter:blur(28px) saturate(180%);-webkit-backdrop-filter:blur(28px) saturate(180%)}
html[data-wgo-theme="dark"][data-wgo-design="apple"] .hero-card{background:rgba(30,30,32,.72);border-color:rgba(255,255,255,.12);box-shadow:0 36px 100px rgba(0,0,0,.38)}
html[data-wgo-design="apple"] .hero h1{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display",Inter,sans-serif;font-weight:720;letter-spacing:-.06em;line-height:.98}
html[data-wgo-design="apple"] .hero-copy{color:var(--muted);letter-spacing:-.012em;line-height:1.58}
html[data-wgo-design="apple"] .eyebrow{color:#0071e3;letter-spacing:.12em}
html[data-wgo-theme="dark"][data-wgo-design="apple"] .eyebrow{color:#2997ff}
html[data-wgo-design="apple"] .hero-secondary{border-color:rgba(0,0,0,.1);border-radius:999px;background:rgba(255,255,255,.66);backdrop-filter:blur(18px)}
html[data-wgo-theme="dark"][data-wgo-design="apple"] .hero-secondary{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12)}
html[data-wgo-design="apple"] .global-search-box{min-height:62px;border-color:rgba(0,0,0,.08);border-radius:18px;background:rgba(255,255,255,.82);box-shadow:0 12px 38px rgba(0,0,0,.09);backdrop-filter:blur(18px) saturate(170%)}
html[data-wgo-theme="dark"][data-wgo-design="apple"] .global-search-box{background:rgba(28,28,30,.84);border-color:rgba(255,255,255,.12)}
html[data-wgo-design="apple"] .global-search-box:focus-within{border-color:#0071e3;box-shadow:0 0 0 4px rgba(0,113,227,.14),0 20px 54px rgba(0,0,0,.12)}
html[data-wgo-design="apple"] .global-search-box button{border-radius:12px;background:#0071e3;color:#fff!important}
html[data-wgo-design="apple"] .global-search-results{border-radius:18px;background:rgba(255,255,255,.9);box-shadow:0 24px 70px rgba(0,0,0,.18);backdrop-filter:blur(26px) saturate(180%)}
html[data-wgo-theme="dark"][data-wgo-design="apple"] .global-search-results{background:rgba(31,31,34,.92)}
html[data-wgo-design="apple"] .paper{border-radius:22px;box-shadow:0 30px 80px rgba(0,0,0,.16)}
html[data-wgo-design="apple"] .shape{border-radius:24px;filter:saturate(.88)}
html[data-wgo-design="apple"] .signal-strip{gap:1px;border:0;background:var(--line)}
html[data-wgo-design="apple"] .signal-strip div{border:0;background:var(--surface)}
html[data-wgo-design="apple"] .feature-section{padding-block:120px}
html[data-wgo-design="apple"] .dashboard-preview{border-radius:24px;box-shadow:0 32px 90px rgba(0,0,0,.12)}
html[data-wgo-design="apple"] .preview-card{border-radius:16px}
html[data-wgo-design="apple"] .principles{gap:18px;padding:18px;border:0;background:var(--soft)}
html[data-wgo-design="apple"] .principles article{border:0;border-radius:24px;background:var(--surface);box-shadow:var(--shadow-sm)}
html[data-wgo-design="apple"] .closing-cta{margin:0 18px 18px;border-radius:28px;background:linear-gradient(135deg,#e3f1ff,#ece7ff);overflow:hidden}
html[data-wgo-theme="dark"][data-wgo-design="apple"] .closing-cta{background:linear-gradient(135deg,#102b45,#2a2040);color:#f5f5f7}
html[data-wgo-theme="dark"][data-wgo-design="apple"] .closing-cta h2{color:#f5f5f7}
@media(prefers-reduced-transparency:reduce){html[data-wgo-design="apple"] .hero-card,html[data-wgo-design="apple"] .global-search-box,html[data-wgo-design="apple"] .global-search-results{background:var(--surface);backdrop-filter:none;-webkit-backdrop-filter:none}}
@media(max-width:720px){html[data-wgo-design="apple"] .hero-card{border-radius:24px;padding:30px 24px}html[data-wgo-design="apple"] .hero{min-height:auto;padding-bottom:48px}html[data-wgo-design="apple"] .closing-cta{margin:0 10px 10px;border-radius:22px}html[data-wgo-design="apple"] .principles{grid-template-columns:1fr;padding:10px;gap:10px}}