:root{--ink:#071a35;--muted:#617493;--line:#dfe7f2;--blue:#3158df;--bg:#f6f9fe;--card:#fff;--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.6}a{color:inherit;text-decoration:none}.wrap{width:min(1180px,calc(100% - 40px));margin:auto}header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{font-size:22px;font-weight:850;letter-spacing:-.5px}.links{display:flex;align-items:center;gap:28px}.links a:not(.btn){font-weight:650}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 19px;border:0;border-radius:12px;background:var(--blue);color:#fff!important;font-weight:800;cursor:pointer}.menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:20px}.hero{background:linear-gradient(135deg,#f8fbff,#eef3ff);padding:92px 0}.hero h1{font-size:clamp(42px,6vw,76px);line-height:1.02;letter-spacing:-3px;max-width:930px;margin:14px 0}.hero p{font-size:20px;color:var(--muted);max-width:760px}.badge{display:inline-flex;background:#eaf0ff;color:#244acb;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:850;letter-spacing:.04em}section{padding:68px 0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card,.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 18px 50px rgba(17,45,89,.06)}.form{max-width:650px}.form h2{font-size:34px;margin:0 0 8px}.form label{display:block;font-weight:750;margin:18px 0 7px}.form input,.form select,.form textarea{width:100%;padding:14px;border:1px solid #cfd9e8;border-radius:11px;background:#fff;font:inherit}.form input:focus,.form select:focus,.form textarea:focus{outline:3px solid #dce5ff;border-color:#3158df}.muted{color:var(--muted)}.alert{padding:12px 14px;border-radius:10px;background:#fff3f3;color:#9f1d1d;margin:12px 0}.auth-shell{min-height:calc(100vh - 78px);display:grid;grid-template-columns:1fr 1fr;background:#f6f9fe}.auth-story{padding:72px max(7vw,40px);background:linear-gradient(145deg,#061a39,#163b92);color:#fff;display:flex;flex-direction:column;justify-content:center}.auth-story h1{font-size:clamp(40px,5vw,64px);line-height:1.04;letter-spacing:-2px;margin:16px 0}.auth-story p{color:#dbe5ff;max-width:560px;font-size:18px}.auth-panel{display:flex;align-items:center;justify-content:center;padding:48px 28px}.auth-panel .form{width:min(520px,100%)}footer{background:#071a35;color:#dce6f7;margin-top:50px}.global-footer{padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:36px}.footer-grid h3{color:#fff;font-size:22px;margin-top:0}.footer-grid strong{display:block;color:#fff;margin-bottom:12px}.footer-grid a{display:block;color:#c5d1e3;margin:8px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:35px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#9fb0c9;font-size:14px}.research-hero{padding:76px 0 42px;background:linear-gradient(135deg,#f8fbff,#eef4ff)}.research-hero h1{font-size:clamp(44px,6vw,70px);line-height:1.05;letter-spacing:-2.5px;margin:12px 0}.research-search{display:flex;gap:10px;max-width:800px;margin-top:28px}.research-search input{flex:1;padding:16px 18px;border:1px solid #cbd8e9;border-radius:13px;font-size:16px}.research-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.research-card{border:1px solid var(--line);border-radius:20px;padding:24px;background:#fff}.research-card h3{margin:0 0 8px}.research-card p{color:var(--muted)}
@media(max-width:860px){.wrap{width:min(100% - 28px,1180px)}.menu-toggle{display:block}.links{display:none;position:absolute;top:68px;left:14px;right:14px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:0 20px 50px rgba(0,0,0,.12);flex-direction:column;align-items:stretch;gap:3px}.links.open{display:flex}.links a{padding:11px 12px;border-radius:9px}.grid,.research-grid,.footer-grid{grid-template-columns:1fr}.auth-shell{grid-template-columns:1fr}.auth-story{display:none}.hero{padding:62px 0}.hero h1{letter-spacing:-1.8px}.footer-bottom{flex-direction:column}.research-search{flex-direction:column}}

/* v5.8.2 unified discovery UI */
.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;background:#071a35;color:#fff;padding:10px 14px;border-radius:10px;font-weight:800}.skip-link:focus{top:12px}
.nx-site-header{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.97);border-bottom:1px solid #e4eaf3;backdrop-filter:blur(16px)}
.nx-site-nav{width:min(1180px,calc(100% - 40px));min-height:78px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:30px}.nx-site-brand{font-size:22px;font-weight:900;letter-spacing:-.5px}.nx-site-links{display:flex;align-items:center;gap:28px}.nx-site-links>a:not(.btn){font-weight:650;white-space:nowrap}.nx-site-links>a:not(.btn):hover{color:#3158df}.nx-mobile-toggle{display:none;border:1px solid #dbe3ef;background:#fff;border-radius:11px;padding:9px 11px;font-size:18px}
.discovery-page{background:#f7f9fd;min-height:70vh}.discovery-hero{padding:76px 0 44px;background:radial-gradient(circle at 82% 15%,#dfe8ff 0,transparent 28%),linear-gradient(135deg,#fbfdff,#f1f5fc)}.discovery-hero h1{font-size:clamp(44px,6vw,72px);line-height:1.02;letter-spacing:-3px;max-width:920px;margin:14px 0 18px}.discovery-hero .lead{font-size:19px;max-width:720px;color:#617493}.discovery-box{margin-top:30px;background:#fff;border:1px solid #dfe7f2;border-radius:22px;padding:16px;box-shadow:0 20px 55px rgba(20,48,90,.08);max-width:930px}.discovery-form{display:flex;gap:10px}.discovery-form input{flex:1;min-width:0;padding:16px 18px;border:1px solid #d5deeb;border-radius:13px;font:inherit;font-size:16px}.discovery-form input:focus{outline:3px solid #e0e7ff;border-color:#3158df}.topic-chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:13px}.topic-chip{display:inline-flex;padding:8px 12px;border:1px solid #dfe6f0;border-radius:999px;background:#f9fbff;color:#415572;font-size:13px;font-weight:750}.topic-chip:hover{border-color:#aabcf3;background:#eef3ff;color:#244acb}.discovery-content{padding:48px 0 76px}.discovery-section-title{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:20px}.discovery-section-title h2{font-size:30px;margin:0}.research-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.research-card{display:flex;flex-direction:column;min-height:220px;border:1px solid #e0e7f1;border-radius:22px;padding:26px;background:#fff;box-shadow:0 14px 40px rgba(17,45,89,.05);transition:.2s ease}.research-card:hover{transform:translateY(-3px);box-shadow:0 20px 50px rgba(17,45,89,.09);border-color:#cdd9ed}.research-card h3{font-size:21px;line-height:1.25}.research-card .btn{margin-top:auto;align-self:flex-start}.result-head{margin:0 0 22px;font-size:28px}
@media(max-width:860px){.nx-site-nav{width:min(100% - 28px,1180px);min-height:70px}.nx-mobile-toggle{display:block}.nx-site-links{display:none;position:absolute;top:68px;left:14px;right:14px;padding:12px;background:#fff;border:1px solid #dfe7f2;border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.12);flex-direction:column;align-items:stretch;gap:3px}.nx-site-links.open{display:flex}.nx-site-links a{padding:11px 12px;border-radius:9px}.discovery-hero{padding:54px 0 34px}.discovery-hero h1{letter-spacing:-1.8px}.discovery-form{flex-direction:column}.research-grid{grid-template-columns:1fr}.topic-chips{flex-wrap:nowrap;overflow:auto;padding-bottom:5px}.topic-chip{white-space:nowrap}.discovery-content{padding-top:32px}}

/* v6.0.1 retained v6 email/auth refinements */
.auth-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.auth-actions a{font-weight:700;text-decoration:none}.email-status{display:inline-flex;align-items:center;gap:7px;padding:7px 10px;border:1px solid #dbe3f0;border-radius:999px;background:#fff;font-size:13px}.security-note{padding:14px 16px;border-radius:14px;background:#f5f8ff;border:1px solid #dce6ff;color:#3d4e68}@media(max-width:640px){.auth-actions{align-items:stretch;flex-direction:column}.auth-actions .btn{width:100%}}

/* v6.0.2 — unified global navigation + modern Nexus identity */
.nx-site-brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content;color:#071a35!important;text-decoration:none}.nx-logo-mark{position:relative;width:34px;height:34px;display:inline-block;border-radius:11px;background:linear-gradient(145deg,#173d9b,#3158df);box-shadow:0 8px 22px rgba(49,88,223,.22);overflow:hidden}.nx-logo-mark i{position:absolute;display:block;width:14px;height:5px;border-radius:6px;background:#fff;transform:rotate(45deg)}.nx-logo-mark i:nth-child(1){left:4px;top:8px}.nx-logo-mark i:nth-child(2){left:10px;top:14px}.nx-logo-mark i:nth-child(3){left:16px;top:20px;opacity:.72}.nx-logo-type{font-size:21px;font-weight:760;letter-spacing:-.55px;white-space:nowrap}.nx-logo-type b{font-weight:920}.nx-site-links>a:not(.btn){position:relative;padding:27px 0 25px}.nx-site-links>a:not(.btn)::after{content:"";position:absolute;left:0;right:100%;bottom:18px;height:2px;border-radius:2px;background:#3158df;transition:right .2s ease}.nx-site-links>a:not(.btn):hover::after,.nx-site-links>a[aria-current="page"]::after{right:0}.nx-site-links>a[aria-current="page"]{color:#244acb}.nx-submit{box-shadow:0 9px 24px rgba(49,88,223,.2)}.nx-mobile-toggle{width:43px;height:41px;padding:10px;align-items:center;justify-content:center;flex-direction:column;gap:4px}.nx-mobile-toggle span{display:block;width:19px;height:2px;background:#071a35;border-radius:2px;transition:.2s}.nx-mobile-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}.nx-mobile-toggle.open span:nth-child(2){opacity:0}.nx-mobile-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media(max-width:860px){.nx-mobile-toggle{display:flex}.nx-site-links>a:not(.btn){padding:11px 12px}.nx-site-links>a:not(.btn)::after{display:none}.nx-site-links a[aria-current="page"]{background:#eef3ff}.nx-site-links .btn{margin-top:5px}.nx-logo-mark{width:31px;height:31px;border-radius:10px}.nx-logo-type{font-size:19px}}
@media(max-width:380px){.nx-logo-type{font-size:17px}.nx-logo-mark{width:29px;height:29px}}

/* v6.0.6 auth controls */
.password-wrap{position:relative}.password-wrap input{padding-right:78px}.password-toggle{position:absolute;right:10px;top:50%;transform:translateY(-50%);border:0;background:#eef3ff;color:#244bd8;border-radius:9px;padding:8px 11px;font:700 13px/1 system-ui;cursor:pointer}.password-toggle:hover{background:#e1e9ff}.password-toggle:focus-visible{outline:3px solid rgba(49,88,223,.25);outline-offset:2px}.auth-actions .btn{min-width:140px}.auth-switch{margin-top:16px}.auth-switch a{font-weight:750}.form input,.form select,.form textarea{font-size:16px}

/* Nexus Journals 6.1 premium brand layer */
:root{--nx-ink:#07152d;--nx-muted:#5f6f86;--nx-line:#e4eaf3;--nx-brand:#3158df;--nx-soft:#f5f8ff;--nx-radius:18px}
html{scroll-behavior:smooth}body{background:linear-gradient(180deg,#fff 0,#fbfcff 44%,#fff 100%);color:var(--nx-ink);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}.nx-site-header{background:rgba(255,255,255,.94)!important;backdrop-filter:saturate(160%) blur(16px);box-shadow:0 1px 0 rgba(12,31,68,.04)}.nx-site-brand{min-width:184px!important}.nx-brand-logo{display:block;width:184px;height:auto}.nx-site-links .btn{background:linear-gradient(135deg,#2448cf,#4668f3)!important;box-shadow:0 12px 28px rgba(49,88,223,.22)!important;transition:transform .18s ease,box-shadow .18s ease}.nx-site-links .btn:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(49,88,223,.28)!important}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(49,88,223,.28);outline-offset:3px}@media(max-width:860px){.nx-site-brand{min-width:164px!important}.nx-brand-logo{width:164px}.nx-site-links{backdrop-filter:blur(18px)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
/* v7.8 mobile navigation reliability: menu must remain crisp above backdrop on iOS */
@media(max-width:860px){
 .nx-site-header{z-index:1200!important;isolation:isolate}
 .nx-site-links{z-index:1202!important;background:#fff!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important;filter:none!important}
 .nx-menu-backdrop{z-index:1100!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
 .nx-site-links.open,.nx-site-links.open *{filter:none!important;opacity:1!important}
}