:root{--bg:#f4f7fb;--surface:#fff;--surface-2:#eaf0f7;--ink:#111827;--muted:#5b6878;--line:#d6e0eb;--blue:#417db7;--blue-2:#76a8d8;--navy:#13263c;--cyan:#69c6d5;--lime:#c5e86c;--shadow:0 24px 60px rgba(27,52,79,.12);--radius:22px;--header:92px;color-scheme:light}
html[data-theme="dark"]{--bg:#09121d;--surface:#101d2b;--surface-2:#17283a;--ink:#eef6ff;--muted:#9fb0c2;--line:#2b4055;--blue:#70a8dd;--blue-2:#9bc5ed;--navy:#07111d;--shadow:0 24px 70px rgba(0,0,0,.32);color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}html.language-pending body{visibility:hidden}body{margin:0;background:var(--bg);color:var(--ink);font-family:"DM Sans",sans-serif;font-size:17px;line-height:1.6}body:before{position:fixed;inset:0;z-index:-1;background-image:linear-gradient(rgba(90,142,194,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(90,142,194,.035) 1px,transparent 1px);background-size:40px 40px;content:""}a{color:inherit}button,input{font:inherit}.skip-link{position:fixed;z-index:1000;top:12px;left:12px;padding:10px 14px;background:var(--ink);color:var(--bg);transform:translateY(-150%)}.skip-link:focus{transform:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.site-header{position:sticky;z-index:50;top:0;min-height:var(--header);display:grid;grid-template-columns:300px 1fr auto;align-items:center;gap:32px;padding:8px clamp(22px,4vw,64px);border-bottom:1px solid color-mix(in srgb,var(--line) 80%,transparent);background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(20px)}.brand{height:76px;display:flex;align-items:center}.brand img{width:230px;height:74px;object-fit:contain;object-position:left center}.site-header nav{display:flex;justify-content:center;gap:clamp(18px,3vw,44px)}.site-header nav a{text-decoration:none;font-size:14px;font-weight:700;letter-spacing:.04em}.site-header nav a:hover{color:var(--blue)}.header-actions{display:flex;align-items:center;gap:10px}.search-button,.theme-button{height:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);font-weight:700;cursor:pointer}.search-button{padding:0 14px}.search-button kbd{margin-left:10px;color:var(--muted);font-size:11px}.theme-button{width:44px;font-size:20px}
.hero{position:relative;min-height:700px;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(360px,.75fr);align-items:center;gap:clamp(40px,7vw,110px);padding:clamp(70px,9vw,130px) clamp(24px,7vw,110px);overflow:hidden;background:linear-gradient(135deg,color-mix(in srgb,var(--bg) 88%,var(--blue-2)),var(--bg) 62%)}.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(65,125,183,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(65,125,183,.08) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(90deg,#000,transparent 76%)}.hero-copy,.quantum-state{position:relative}.eyebrow,.kicker{margin:0 0 14px;color:var(--blue);font-family:Manrope,sans-serif;font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.eyebrow span{display:inline-block;width:26px;height:2px;margin:0 10px 3px 0;background:var(--blue)}h1,h2,h3{margin:0;font-family:Manrope,sans-serif;line-height:1.08;letter-spacing:-.04em}h1{max-width:920px;font-size:clamp(52px,7.1vw,108px);font-weight:750}h1 em{color:var(--blue);font-style:normal}.hero-dek{max-width:760px;margin:30px 0;color:var(--muted);font-size:clamp(19px,2vw,25px);line-height:1.55}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.button{min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:0 22px;border:1px solid transparent;border-radius:13px;text-decoration:none;font-weight:800}.button.primary{background:var(--ink);color:var(--bg)}.button.secondary{border-color:var(--line);background:var(--surface)}.button:hover{transform:translateY(-2px)}
.quantum-state{min-height:500px;padding:24px;border:1px solid var(--line);border-radius:30px;background:color-mix(in srgb,var(--surface) 82%,transparent);box-shadow:var(--shadow);backdrop-filter:blur(20px)}.state-top{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.live-pulse{display:inline-flex;align-items:center;gap:8px}.live-pulse:before{width:8px;height:8px;border-radius:50%;background:#43c394;box-shadow:0 0 0 5px rgba(67,195,148,.14);content:""}.bloch{position:relative;width:min(330px,90%);aspect-ratio:1;margin:26px auto}.orbit,.axis,.qubit-dot{position:absolute}.orbit{inset:15%;border:1.5px solid var(--blue-2);border-radius:50%}.orbit-a{transform:rotate(0deg) scaleY(.38)}.orbit-b{transform:rotate(60deg) scaleY(.38)}.orbit-c{transform:rotate(-60deg) scaleY(.38)}.axis{top:50%;left:12%;width:76%;height:1px;background:var(--line)}.axis-y{transform:rotate(90deg)}.qubit-dot{top:24%;left:65%;width:18px;height:18px;border:4px solid var(--surface);border-radius:50%;background:var(--blue);box-shadow:0 0 0 9px rgba(65,125,183,.15)}.state-equation{padding:15px;border-radius:12px;background:var(--navy);color:#f5f9ff;font-family:ui-monospace,monospace;font-size:22px;text-align:center}.quantum-state p{margin:18px 5px 0;color:var(--muted);font-size:15px}
.signal-bar{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line);background:var(--surface)}.signal-bar div{display:flex;align-items:center;gap:15px;padding:24px clamp(20px,3vw,44px);border-right:1px solid var(--line)}.signal-bar div:last-child{border:0}.signal-bar strong{color:var(--blue);font-family:Manrope;font-size:30px}.signal-bar span{color:var(--muted);font-size:13px;font-weight:700;text-transform:uppercase}
.section{max-width:1520px;margin:auto;padding:clamp(80px,10vw,150px) clamp(24px,5vw,80px)}.section-heading{margin-bottom:48px}.section-heading h2{font-size:clamp(40px,5vw,72px)}.split-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,520px);align-items:end;gap:50px}.split-heading>p,.centered>p{margin:0;color:var(--muted);font-size:19px}.centered{max-width:820px;margin-inline:auto;text-align:center}.centered>p{margin:20px auto 0}.briefing{max-width:none;background:var(--navy);color:#f1f6fc}.briefing .section-heading{max-width:1360px;margin-inline:auto;margin-bottom:48px}.briefing .split-heading>p{color:#aebdcd}.byline-card{max-width:1360px;margin:auto;padding:clamp(26px,4vw,54px);border:1px solid #38516a;border-radius:var(--radius);background:linear-gradient(135deg,#172e47,#0d1c2c);box-shadow:0 30px 80px rgba(0,0,0,.24)}.article-meta,.byline-card footer{display:flex;justify-content:space-between;gap:20px;color:#aebdcd;font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.article-label{color:var(--lime)}.article-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(40px,7vw,100px);padding:52px 0}.article-stance{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:.16em}.article-layout h3{font-size:clamp(34px,4vw,62px)}.article-dek{color:#bdcad7;font-size:19px}.article-body{color:#d9e3ec}.article-body p:first-child:first-letter{float:left;margin:7px 8px 0 0;color:var(--lime);font-family:Manrope;font-size:58px;font-weight:800;line-height:.7}
.filter-row,.level-tabs{display:flex;flex-wrap:wrap;gap:9px}.filter,.level{padding:9px 15px;border:1px solid var(--line);border-radius:100px;background:transparent;color:var(--muted);font-size:13px;font-weight:800;cursor:pointer}.filter.active,.level.active{border-color:var(--ink);background:var(--ink);color:var(--bg)}.players-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}.player-card{min-height:300px;display:flex;flex-direction:column;padding:28px;border:1px solid var(--line);border-radius:18px;background:var(--surface);transition:.2s}.player-card:hover{border-color:var(--blue);transform:translateY(-4px);box-shadow:var(--shadow)}.player-top{display:flex;align-items:center;justify-content:space-between}.player-mark{width:52px;height:52px;display:grid;place-items:center;border-radius:15px;background:var(--mark);color:#fff;font-family:Manrope;font-weight:800}.player-type{color:var(--muted);font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.player-card h3{margin-top:28px;font-size:27px}.player-card p{color:var(--muted)}.player-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}.player-tags span{padding:5px 8px;border-radius:7px;background:var(--surface-2);font-size:11px;font-weight:800}.player-card a{margin-top:22px;color:var(--blue);font-weight:800;text-decoration:none}
.learning{max-width:none;background:var(--surface-2)}.path-grid{max-width:1360px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:50px auto 0}.path-card{position:relative;min-height:480px;padding:36px;border:1px solid var(--line);border-radius:24px;background:var(--surface);overflow:hidden}.path-number{position:absolute;top:12px;right:20px;color:var(--surface-2);font-family:Manrope;font-size:110px;font-weight:800;line-height:1}.path-card h3{position:relative;font-size:38px}.path-card p,.path-card ul{position:relative;color:var(--muted)}.path-card li{margin:8px 0}.text-button{position:absolute;right:34px;bottom:32px;left:34px;padding:14px 0;border:0;border-top:1px solid var(--line);background:none;color:var(--blue);font-weight:800;text-align:left;cursor:pointer}.path-card.builder{background:var(--navy);color:#fff}.path-card.builder p,.path-card.builder ul{color:#b8c8d8}.path-card.builder .path-number{color:#1e3852}.path-card.builder .text-button{border-color:#36516b;color:var(--cyan)}
.tutorial-toolbar{display:flex;justify-content:space-between;gap:20px;margin-bottom:28px}.tutorial-search input,.dictionary-search input{width:min(100%,420px);padding:12px 16px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink)}.tutorial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.tutorial-card{display:flex;flex-direction:column;min-height:330px;padding:28px;border:1px solid var(--line);border-radius:18px;background:var(--surface)}.tutorial-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.tutorial-card h3{margin:28px 0 10px;font-size:27px}.tutorial-card p{color:var(--muted)}.tutorial-card a{margin-top:auto;color:var(--blue);font-weight:800;text-decoration:none}.tutorial-card .official{color:#39846e}
.newsroom{max-width:none;background:var(--surface)}.newsroom>*{max-width:1360px;margin-inline:auto}.news-status{text-align:right}.news-status small{display:block;margin-top:8px;color:var(--muted)}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.news-card{min-height:280px;display:flex;flex-direction:column;padding:26px;border:1px solid var(--line);border-radius:18px;background:var(--bg);text-decoration:none}.news-card:hover{border-color:var(--blue)}.news-card-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;font-weight:800;text-transform:uppercase}.news-card h3{margin:38px 0 16px;font-size:24px}.news-card p{margin-top:auto;color:var(--blue);font-weight:800}
.dictionary-search{text-align:right}.alphabet{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:28px}.alphabet button{width:34px;height:34px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--muted);font-size:12px;font-weight:800;cursor:pointer}.alphabet button.active{background:var(--ink);color:var(--bg)}.dictionary-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line)}.term-card{display:grid;grid-template-columns:70px 1fr;gap:20px;padding:30px 10px;border-bottom:1px solid var(--line)}.term-card:nth-child(odd){padding-right:36px;border-right:1px solid var(--line)}.term-card:nth-child(even){padding-left:36px}.term-letter{color:var(--blue);font-family:Manrope;font-size:42px;font-weight:800}.term-card h3{font-size:23px}.term-card p{margin:8px 0;color:var(--muted)}.term-card small{font-weight:700}
.closing{display:flex;align-items:end;justify-content:space-between;gap:50px;padding:clamp(70px,9vw,130px) clamp(24px,7vw,110px);background:var(--blue);color:#fff}.closing .kicker{color:#d9f26f}.closing h2{max-width:950px;font-size:clamp(40px,5vw,70px)}.closing .button{background:#fff;color:#17283a}.site-footer{min-height:240px;display:grid;grid-template-columns:280px 1fr 1fr;align-items:center;gap:50px;padding:40px clamp(24px,6vw,90px);background:#08121e;color:#aebdcd}.site-footer img{width:250px;filter:invert(1) brightness(1.8)}.site-footer p{font-size:14px}
.search-dialog{width:min(760px,calc(100% - 30px));padding:0;border:0;border-radius:22px;background:var(--surface);color:var(--ink);box-shadow:0 30px 100px rgba(0,0,0,.35)}.search-dialog::backdrop{background:rgba(5,12,20,.72);backdrop-filter:blur(8px)}.search-shell{padding:18px}.search-top{display:flex;gap:10px}.search-top input{flex:1;padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--ink)}.search-top button{border:0;background:none;color:var(--muted)}.search-results{max-height:60vh;overflow:auto}.search-result{display:block;padding:16px;border-bottom:1px solid var(--line);text-decoration:none}.search-result small{display:block;color:var(--blue);font-weight:800;text-transform:uppercase}
html[data-theme="dark"] .brand img{filter:invert(1) brightness(1.65)}
@media(max-width:1100px){.site-header{grid-template-columns:260px 1fr}.site-header nav{display:none}.header-actions{justify-self:end}.hero{grid-template-columns:1fr}.quantum-state{max-width:650px}.players-grid,.tutorial-grid,.news-grid{grid-template-columns:repeat(2,1fr)}.path-grid{grid-template-columns:1fr}.path-card{min-height:390px}.signal-bar{grid-template-columns:repeat(2,1fr)}.signal-bar div:nth-child(2){border-right:0}.article-layout{grid-template-columns:1fr}.site-footer{grid-template-columns:1fr 1fr}.site-footer img{grid-column:1/-1}}
@media(max-width:720px){:root{--header:78px}.site-header{grid-template-columns:1fr auto;padding:5px 16px}.brand{height:66px}.brand img{width:185px;height:64px}.search-button{width:44px;overflow:hidden;color:transparent}.search-button kbd{display:none}.hero{min-height:auto;padding-top:70px}.hero h1{font-size:clamp(45px,15vw,68px)}.quantum-state{min-height:430px}.signal-bar{grid-template-columns:1fr}.signal-bar div{border-right:0;border-bottom:1px solid var(--line)}.split-heading{grid-template-columns:1fr;gap:20px}.players-grid,.tutorial-grid,.news-grid,.dictionary-grid{grid-template-columns:1fr}.term-card:nth-child(n){padding-inline:0;border-right:0}.tutorial-toolbar{align-items:stretch;flex-direction:column}.path-card{padding:28px}.article-meta,.byline-card footer{flex-direction:column}.closing{align-items:flex-start;flex-direction:column}.site-footer{grid-template-columns:1fr}.section{padding-inline:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Readability and brand-scale refinements */
.site-header{grid-template-columns:340px 1fr auto;min-height:104px}
.brand{height:88px}.brand img{width:280px;height:86px}
.signal-bar div{gap:18px;padding-block:30px}.signal-bar strong{font-size:38px}.signal-bar span{font-size:16px;line-height:1.35}
.split-heading>p,.centered>p{font-size:22px;line-height:1.55}.briefing .split-heading>p{font-size:24px}
.article-dek{font-size:22px}.article-body{font-size:21px;line-height:1.72}.article-body p:first-child:first-letter{font-size:64px}
.article-meta,.byline-card footer{font-size:13px}.site-footer p{font-size:15px}.copyright{display:inline-block;margin-top:12px;color:#dce8f4;font-weight:700}
@media(max-width:1100px){.site-header{grid-template-columns:300px 1fr}}
@media(max-width:720px){.site-header{grid-template-columns:1fr auto;min-height:92px}.brand{height:80px}.brand img{width:255px;height:78px}.signal-bar strong{font-size:34px}.signal-bar span{font-size:16px}.article-body{font-size:19px}}

/* Expanded masthead and search */
.site-header{grid-template-columns:minmax(460px,580px) 1fr auto;min-height:188px;gap:28px;padding-block:10px}
.brand{height:168px}.brand img{width:560px;height:166px}
.site-header nav{gap:clamp(22px,2.8vw,52px)}.site-header nav a{font-size:19px;letter-spacing:.025em}
.header-actions{gap:12px}.language-picker select{height:52px;max-width:150px;padding:0 32px 0 12px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);font-size:14px;font-weight:800}.search-button,.theme-button{height:52px}.theme-button{width:52px}.search-button{padding-inline:19px;font-size:16px}
.search-dialog{width:min(1120px,calc(100% - 30px))}.search-top input{padding:21px 22px;font-size:21px}.search-results{max-height:68vh}.search-result{padding:19px 20px}
body.translating{cursor:progress}body.translating .language-picker select{opacity:.65}
.hero .eyebrow{font-size:clamp(18px,1.45vw,24px);letter-spacing:.12em}.hero .eyebrow span{width:42px;height:3px;margin-bottom:5px}
.language-status{position:absolute;right:clamp(22px,4vw,64px);bottom:7px;max-width:520px;color:var(--muted);font-size:12px;font-weight:700;text-align:right}.language-status.error{color:#b13b35}
@media(max-width:1350px){.site-header{grid-template-columns:430px 1fr auto}.brand img{width:420px}.site-header nav{display:none}}
@media(max-width:800px){.site-header{grid-template-columns:1fr auto;min-height:126px;padding-inline:14px}.brand{height:112px}.brand img{width:min(330px,72vw);height:110px}.language-picker select{width:62px;max-width:62px;padding-inline:7px}.search-button{display:none}.theme-button{width:46px;height:46px}.language-status{display:none}}