/* Neurovia One — site design system v2
   Palette is taken from the course ad and Facebook assets so the whole brand matches. */

@font-face{font-family:'Anton';src:url(../fonts/anton-latin-400-normal.woff2) format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Source Sans 3';src:url(../fonts/source-sans-3-latin-wght-normal.woff2) format('woff2');font-weight:200 900;font-style:normal;font-display:swap}
@font-face{font-family:'Source Sans 3';src:url(../fonts/source-sans-3-latin-wght-italic.woff2) format('woff2');font-weight:200 900;font-style:italic;font-display:swap}
@font-face{font-family:'Spectral';src:url(../fonts/spectral-latin-400-normal.woff2) format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Spectral';src:url(../fonts/spectral-latin-400-italic.woff2) format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'Spectral';src:url(../fonts/spectral-latin-500-italic.woff2) format('woff2');font-weight:500;font-style:italic;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url(../fonts/ibm-plex-mono-latin-400-normal.woff2) format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url(../fonts/ibm-plex-mono-latin-500-normal.woff2) format('woff2');font-weight:500;font-style:normal;font-display:swap}

:root{
  --deep:#041213;
  --teal:#0D2B2D;
  --teal-2:#12474A;
  --teal-3:#1C6A66;
  --mint:#6FD1BC;
  --amber:#F4B13A;
  --amber-soft:#F8CB78;
  --amber-ink:#8A5A12;
  --cream:#F6F1E6;
  --paper:#FBF8F1;
  --mute:#B9CCC8;
  --ink:#0B1F20;
  --ink-soft:#42575A;
  --rule:#DDD6C4;
  --rule-dark:rgba(246,241,230,.14);
  --coral:#E0705A;

  --f-display:'Anton',Impact,'Arial Narrow Bold',sans-serif;
  --f-body:'Source Sans 3',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --f-serif:'Spectral',Georgia,'Times New Roman',serif;
  --f-mono:'IBM Plex Mono',ui-monospace,'Courier New',monospace;

  --wrap:1200px;
  --read:700px;
  --radius:14px;
  --shadow:0 18px 44px rgba(4,18,19,.14);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--cream);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.62;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{margin:0}
p{margin:0 0 1em}
::selection{background:var(--amber);color:var(--deep)}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:4px}
.skip-link{position:absolute;left:12px;top:-60px;background:var(--amber);color:var(--deep);padding:10px 16px;font-weight:700;border-radius:8px;z-index:200;text-decoration:none}
.skip-link:focus{top:12px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 28px}
.narrow{max-width:860px}

/* ---------- Type ---------- */
.display{font-family:var(--f-display);font-weight:400;text-transform:uppercase;letter-spacing:.005em;line-height:1.0}
.eyebrow{display:inline-block;font-family:var(--f-mono);font-size:12px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--amber-ink)}
.dark .eyebrow,.eyebrow.on-dark{color:var(--amber)}
.lede{font-family:var(--f-serif);font-style:italic;font-size:clamp(1.15rem,2vw,1.4rem);line-height:1.55;color:var(--ink-soft)}
.dark .lede{color:var(--mute)}
.amber{color:var(--amber)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-family:var(--f-body);font-weight:700;font-size:16px;letter-spacing:.01em;padding:15px 26px;border-radius:999px;border:2px solid transparent;text-decoration:none;cursor:pointer;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;line-height:1.1}
.btn-primary{background:var(--amber);color:var(--deep);box-shadow:0 8px 24px rgba(244,177,58,.28)}
.btn-primary:hover{background:var(--amber-soft);transform:translateY(-2px)}
.btn-ghost{border-color:var(--rule-dark);color:var(--cream)}
.btn-ghost:hover{border-color:var(--cream);background:rgba(246,241,230,.08)}
.btn-dark{background:var(--deep);color:var(--cream)}
.btn-dark:hover{background:var(--teal-2);transform:translateY(-2px)}
.btn-line{border-color:var(--ink);color:var(--ink)}
.btn-line:hover{background:var(--ink);color:var(--cream)}
.btn:disabled{opacity:.6;cursor:default;transform:none}
.btn-sm{padding:10px 18px;font-size:14.5px}
.arrow::after{content:"→";transition:transform .2s ease}
a:hover>.arrow::after,.btn:hover.arrow::after{transform:translateX(4px)}

/* ---------- Header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s ease,box-shadow .3s ease,padding .3s ease;padding:18px 0;color:var(--cream)}
.site-header.scrolled{background:rgba(4,18,19,.88);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);padding:10px 0;box-shadow:0 1px 0 var(--rule-dark)}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--cream)}
.brand svg{width:38px;height:38px;flex:none}
.brand-word{font-family:var(--f-display);font-size:23px;letter-spacing:.06em;text-transform:uppercase;line-height:1}
.brand-word span{color:var(--amber)}
.nav{display:flex;align-items:center;gap:6px}
.nav a{text-decoration:none;font-weight:600;font-size:15.5px;padding:9px 14px;border-radius:999px;color:var(--cream);opacity:.88;transition:background .2s,opacity .2s}
.nav a:hover{opacity:1;background:rgba(246,241,230,.08)}
.nav a[aria-current="page"]{opacity:1;color:var(--amber)}
.nav .btn{margin-left:8px;opacity:1;color:var(--deep)}
.nav .btn:hover{background:var(--amber-soft)}
.nav-toggle{display:none;width:46px;height:46px;border-radius:12px;border:1px solid var(--rule-dark);background:transparent;cursor:pointer;position:relative}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--cream);transition:transform .25s,opacity .25s,top .25s}
.nav-toggle span:nth-child(1){top:16px}.nav-toggle span:nth-child(2){top:22px}.nav-toggle span:nth-child(3){top:28px}
.nav-toggle.open span:nth-child(1){top:22px;transform:rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){top:22px;transform:rotate(-45deg)}
.mobile-menu{position:fixed;inset:0;background:var(--deep);z-index:90;display:none;flex-direction:column;justify-content:center;padding:90px 32px 40px;gap:4px}
.mobile-menu.open{display:flex}
.mobile-menu a{font-family:var(--f-display);font-size:2.3rem;text-transform:uppercase;text-decoration:none;color:var(--cream);padding:8px 0;letter-spacing:.01em}
.mobile-menu a:hover{color:var(--amber)}
.mobile-menu .mm-foot{margin-top:28px;font-size:15px;color:var(--mute)}
.mobile-menu .mm-foot a{font-family:var(--f-body);font-size:15px;text-transform:none;display:inline;padding:0;color:var(--cream);text-decoration:underline}
@media (max-width:900px){.nav{display:none}.nav-toggle{display:block}}

/* ---------- Dark zones & hero ---------- */
.dark{background:var(--deep);color:var(--cream);position:relative}
.hero{position:relative;overflow:hidden;background:radial-gradient(1200px 700px at 78% 30%,#0F3A3D 0%,rgba(15,58,61,0) 60%),radial-gradient(900px 600px at 10% 90%,#0A2A2B 0%,rgba(10,42,43,0) 65%),var(--deep);color:var(--cream)}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:auto}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 50%,rgba(4,18,19,0) 40%,rgba(4,18,19,.55) 100%);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:56px;align-items:center;padding-top:150px;padding-bottom:96px;min-height:92vh}
.hero-tag{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-mono);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);border:1px solid rgba(244,177,58,.4);padding:8px 14px;border-radius:999px;background:rgba(244,177,58,.07);margin-bottom:26px}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 0 rgba(244,177,58,.6);animation:pulse 2.2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(244,177,58,0)}100%{box-shadow:0 0 0 0 rgba(244,177,58,0)}}
.hero h1{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:clamp(3.4rem,9.4vw,8rem);line-height:.94;letter-spacing:.004em}
.hero:not(.hero-course) h1{font-size:clamp(4.6rem,9.4vw,8rem)}
.hero h1 .l{display:block;overflow:hidden}
.hero h1 .l>span{display:block;transform:translateY(105%);transition:transform .9s cubic-bezier(.2,.8,.2,1)}
.hero.loaded h1 .l>span{transform:none}
.hero h1 .l:nth-child(2)>span{transition-delay:.12s}.hero h1 .l:nth-child(3)>span{transition-delay:.24s}
.hero-dek{font-size:clamp(1.1rem,1.8vw,1.35rem);color:var(--mute);max-width:34em;margin:28px 0 34px;line-height:1.55}
.hero-dek b{color:var(--cream);font-weight:600}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-by{margin-top:34px;display:flex;align-items:center;gap:14px;color:var(--mute);font-size:15px}
.hero-by img{width:46px;height:46px;border-radius:50%;object-fit:cover;object-position:50% 20%;border:2px solid var(--amber)}
.hero-by b{color:var(--cream)}

.next-card{background:rgba(13,43,45,.72);border:1px solid rgba(244,177,58,.35);border-radius:22px;padding:30px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 30px 80px rgba(0,0,0,.4)}
.next-card .eyebrow{color:var(--amber)}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0 20px}
.countdown div{background:rgba(4,18,19,.7);border:1px solid var(--rule-dark);border-radius:12px;padding:12px 6px;text-align:center}
.countdown b{display:block;font-family:var(--f-display);font-weight:400;font-size:2.3rem;line-height:1;color:var(--cream);font-variant-numeric:tabular-nums}
.countdown span{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.next-card h2{font-family:var(--f-display);font-weight:400;font-size:1.9rem;text-transform:uppercase;line-height:1.05;margin:6px 0 10px}
.next-card p{color:var(--mute);font-size:15.5px;margin-bottom:18px}
.price-row{display:flex;gap:10px;margin-bottom:20px}
.price-row div{flex:1;border-radius:12px;padding:12px 14px;background:var(--cream);color:var(--deep)}
.price-row div.alt{background:var(--amber)}
.price-row small{display:block;font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;opacity:.75}
.price-row b{font-family:var(--f-display);font-weight:400;font-size:2rem;line-height:1.1}
.next-card .btn{width:100%}
@media (max-width:980px){.hero-inner{grid-template-columns:1fr;padding-top:120px;min-height:0;gap:40px}}

.marquee{background:var(--amber);color:var(--deep);overflow:hidden;white-space:nowrap;border-block:1px solid rgba(4,18,19,.2)}
.marquee-track{display:inline-flex;gap:0;animation:marq 38s linear infinite;padding:14px 0}
.marquee span{font-family:var(--f-display);text-transform:uppercase;font-size:1.25rem;letter-spacing:.06em;padding:0 22px;position:relative}
.marquee span::after{content:"✦";position:absolute;right:-6px;font-size:.8rem;top:.35em}
@keyframes marq{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.marquee-track{animation:none}.hero-tag i{animation:none}.hero h1 .l>span{transform:none;transition:none}}

/* ---------- Sections ---------- */
section.panel{padding:104px 0}
section.panel.tight{padding:64px 0}
.panel.alt{background:var(--paper)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:clamp(2.2rem,5vw,3.8rem);line-height:1.0;margin:10px 0 16px;letter-spacing:.004em}
.section-head p{color:var(--ink-soft);font-size:1.12rem;max-width:40em}
.dark .section-head p{color:var(--mute)}
.section-head.center{margin-inline:auto;text-align:center}
.section-head.center p{margin-inline:auto}
.split-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.split-head .section-head{margin-bottom:0}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
.no-js .reveal{opacity:1;transform:none}

/* ---------- Doors (home) ---------- */
.doors{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:20px}
.door{position:relative;display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden;text-decoration:none;color:var(--ink);transition:transform .25s ease,box-shadow .25s ease,border-color .25s}
.door:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--teal-3)}
.door-art{background:var(--teal);aspect-ratio:16/9;display:grid;place-items:center;overflow:hidden}
.door-art svg{width:100%;height:100%}
.door-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.door-body h3{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:1.8rem;line-height:1.05}
.door-body p{color:var(--ink-soft);margin:0}
.door-foot{margin-top:auto;padding-top:14px;display:flex;justify-content:space-between;align-items:center;font-weight:700;font-size:15px}
.door-foot small{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);font-weight:500}
.door.featured{background:var(--deep);color:var(--cream);border-color:rgba(244,177,58,.5)}
.door.featured .door-art{background:#0A2224}
.door.featured .door-body p{color:var(--mute)}
.door.featured .door-foot small{color:var(--amber)}
.door .flag{position:absolute;top:14px;left:14px;background:var(--amber);color:var(--deep);font-family:var(--f-mono);font-size:11px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;padding:5px 10px;border-radius:999px;z-index:2}
@media (max-width:980px){.doors{grid-template-columns:1fr}}

/* ---------- Article cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cards.two{grid-template-columns:repeat(2,1fr)}
.card{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden;text-decoration:none;color:var(--ink);transition:transform .25s ease,box-shadow .25s ease,border-color .25s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--teal-3)}
.card-art{background:var(--teal);aspect-ratio:16/9;overflow:hidden}
.card-art svg{width:100%;height:100%;transition:transform .5s ease}
.card:hover .card-art svg{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.card-body h3{font-size:1.32rem;line-height:1.22;font-weight:700;letter-spacing:-.005em}
.card-body p{color:var(--ink-soft);margin:0;font-size:15.8px;line-height:1.55}
.card-meta{margin-top:auto;padding-top:12px;display:flex;justify-content:space-between;gap:10px;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.06em;color:var(--ink-soft);text-transform:uppercase}
.tag{display:inline-block;align-self:flex-start;font-family:var(--f-mono);font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;padding:5px 10px;border-radius:999px;background:rgba(18,71,74,.1);color:var(--teal-2);border:1px solid rgba(18,71,74,.2)}
.tag.t-bio{background:rgba(224,112,90,.12);color:#9A3B28;border-color:rgba(224,112,90,.35)}
.tag.t-brain{background:rgba(18,71,74,.1);color:var(--teal-2);border-color:rgba(18,71,74,.25)}
.tag.t-learn{background:rgba(244,177,58,.2);color:var(--amber-ink);border-color:rgba(244,177,58,.5)}
.tag.t-ai{background:rgba(111,209,188,.22);color:#0E5B52;border-color:rgba(111,209,188,.6)}
.tag.t-mind{background:rgba(13,43,45,.08);color:var(--ink);border-color:rgba(13,43,45,.25)}
.dark .tag{background:rgba(246,241,230,.08);color:var(--cream);border-color:var(--rule-dark)}
.card.feature{grid-column:1/-1;flex-direction:row}
.card.feature .card-art{aspect-ratio:auto;flex:1.15;min-height:320px;background:radial-gradient(ellipse at 70% 30%,#14494B,#0D2B2D)}
.card.feature .card-body{flex:1;justify-content:center;padding:36px}
.card.feature h3{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:clamp(1.9rem,3.4vw,2.8rem);line-height:1.02;letter-spacing:.004em}
.card.feature p{font-size:17px}
@media (max-width:980px){.cards{grid-template-columns:repeat(2,1fr)}.card.feature{flex-direction:column}.card.feature .card-art{min-height:0;aspect-ratio:16/9}}
@media (max-width:640px){.cards,.cards.two{grid-template-columns:1fr}.card.feature .card-body{padding:22px}}

/* ---------- Video blocks ---------- */
.video-feature{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,340px);gap:60px;align-items:center}
.vframe{position:relative;width:100%;aspect-ratio:9/16;background:var(--deep);border-radius:18px;overflow:hidden;box-shadow:0 30px 70px rgba(0,0,0,.45);border:1px solid rgba(244,177,58,.35)}
.vframe video{width:100%;height:100%;object-fit:cover;background:var(--deep)}
.video-list{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.vcard{display:flex;flex-direction:column;gap:14px}
.vcard .vframe{max-width:340px;width:100%}
.vcard h3{font-size:1.3rem;line-height:1.25;font-weight:700}
.vcard p{color:var(--ink-soft);margin:0;font-size:15.8px}
.vmeta{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}
@media (max-width:900px){.video-feature{grid-template-columns:1fr;gap:34px}.vframe{max-width:310px;margin-inline:auto}.video-list{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.video-list{grid-template-columns:1fr}.vcard .vframe{margin-inline:auto}.vcard{align-items:center;text-align:center}}

/* ---------- Principles / trust ---------- */
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--rule-dark);border-radius:var(--radius);overflow:hidden}
.principle{padding:34px 30px;border-right:1px solid var(--rule-dark)}
.principle:last-child{border-right:none}
.principle .num{font-family:var(--f-display);font-size:3rem;line-height:1;color:var(--amber);display:block;margin-bottom:12px}
.principle h3{font-size:1.25rem;font-weight:700;margin-bottom:8px}
.principle p{color:var(--mute);margin:0;font-size:16px}
@media (max-width:820px){.principles{grid-template-columns:1fr}.principle{border-right:none;border-bottom:1px solid var(--rule-dark)}.principle:last-child{border-bottom:none}}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:22px}
.stat b{display:block;font-family:var(--f-display);font-weight:400;font-size:2.6rem;line-height:1;color:var(--teal-2)}
.stat span{display:block;margin-top:6px;color:var(--ink-soft);font-size:15px}
@media (max-width:820px){.stats{grid-template-columns:1fr 1fr}}

/* ---------- Founder ---------- */
.founder{display:grid;grid-template-columns:minmax(240px,380px) 1fr;gap:64px;align-items:center}
.founder-photo{position:relative}
.founder-photo img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:50% 18%;border-radius:18px;filter:saturate(.9) contrast(1.03)}
.founder-photo::after{content:"";position:absolute;inset:auto -14px -14px auto;width:70%;height:70%;border-right:5px solid var(--amber);border-bottom:5px solid var(--amber);border-radius:0 0 22px 0;z-index:-1}
.founder h2{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:clamp(2.2rem,4.6vw,3.6rem);line-height:1;margin:10px 0 14px}
.founder .role{font-family:var(--f-mono);font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--amber);margin-bottom:20px;display:block}
.founder p{color:var(--mute);font-size:1.08rem}
.creds{list-style:none;padding:0;margin:20px 0 28px;display:grid;gap:10px}
.creds li{display:flex;gap:12px;align-items:flex-start;color:var(--cream);font-weight:600}
.creds li::before{content:"";flex:none;width:9px;height:9px;margin-top:.55em;background:var(--amber);border-radius:50%}
@media (max-width:860px){.founder{grid-template-columns:1fr;gap:40px}.founder-photo{max-width:340px}}

/* ---------- Newsletter ---------- */
.letter{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;background:var(--teal);color:var(--cream);border-radius:22px;padding:52px;position:relative;overflow:hidden}
.letter::before{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(244,177,58,.25),rgba(244,177,58,0) 70%)}
.letter h2{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:clamp(2rem,4vw,3rem);line-height:1.02;margin:8px 0 12px}
.letter p{color:var(--mute);margin:0}
.letter form{position:relative;display:grid;gap:12px}
.field input,.field select,.field textarea,.letter input[type=email]{width:100%;font:inherit;font-size:16px;padding:14px 16px;border-radius:12px;border:1.5px solid var(--rule);background:#fff;color:var(--ink)}
.letter input[type=email]{border-color:transparent}
.field label{display:block;font-weight:700;font-size:14.5px;margin-bottom:6px}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus,.letter input:focus{outline:3px solid var(--amber);outline-offset:1px;border-color:transparent}
.fineprint{font-size:13.5px;color:var(--mute);margin:0}
@media (max-width:860px){.letter{grid-template-columns:1fr;padding:32px 24px;gap:26px}}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:860px}
.faq details{background:var(--paper);border:1px solid var(--rule);border-radius:12px;padding:0 22px;transition:border-color .2s}
.faq details[open]{border-color:var(--teal-3)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:18px;padding:19px 0;font-weight:700;font-size:1.08rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--f-mono);font-size:1.5rem;color:var(--amber-ink);transition:transform .25s;flex:none}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .ans{padding:0 0 20px;color:var(--ink-soft)}
.faq .ans p:last-child{margin:0}
.dark .faq details{background:rgba(246,241,230,.04);border-color:var(--rule-dark)}
.dark .faq .ans{color:var(--mute)}

/* ---------- Footer ---------- */
.site-footer{background:var(--deep);color:var(--cream);position:relative;overflow:hidden}
.footer-cta{padding:96px 0 72px;max-width:900px}
.footer-cta h2{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:clamp(2.4rem,6vw,4.6rem);line-height:.98;margin:12px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr 1.2fr;gap:40px;padding:56px 0 44px;border-top:1px solid var(--rule-dark)}
.footer-grid .fh{margin:0 0 14px;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);margin-bottom:14px;font-weight:500}
.footer-grid a{display:block;text-decoration:none;color:var(--mute);padding:5px 0;font-size:15.5px;transition:color .2s}
.footer-grid a:hover{color:var(--cream)}
.footer-brand p{color:var(--mute);font-size:15px;max-width:26em;margin:14px 0}
.social{display:flex;flex-wrap:wrap;gap:8px}
.social a{display:inline-flex;border:1px solid var(--rule-dark);border-radius:999px;padding:7px 14px;font-size:14px;color:var(--cream)}
.social a:hover{border-color:var(--amber);color:var(--amber)}
.nl{display:flex;gap:8px;margin-top:6px}
.nl input{flex:1;min-width:0;font:inherit;font-size:15px;padding:12px 14px;border-radius:999px;border:1px solid var(--rule-dark);background:rgba(246,241,230,.06);color:var(--cream)}
.nl input::placeholder{color:var(--mute)}
.nl button{font:inherit;font-weight:700;font-size:15px;border:none;border-radius:999px;background:var(--amber);color:var(--deep);padding:0 18px;cursor:pointer}
.footer-bottom{border-top:1px solid var(--rule-dark);padding:22px 0 30px;font-size:13.5px;color:var(--mute);display:flex;gap:10px 24px;flex-wrap:wrap;justify-content:space-between}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* ---------- Page banner (hubs, about) ---------- */
.banner{position:relative;overflow:hidden;background:radial-gradient(900px 500px at 85% 20%,#0F3A3D 0%,rgba(15,58,61,0) 60%),var(--deep);color:var(--cream);padding:150px 0 70px}
.banner .wrap{position:relative;z-index:2}
.banner canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.7}
.banner h1{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:clamp(2.8rem,7.4vw,6rem);line-height:.96;max-width:15em;margin:14px 0 20px}
.banner .lede{max-width:36em;color:var(--mute)}
.crumbs{font-family:var(--f-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--mute)}
.crumbs a{text-decoration:none}.crumbs a:hover{color:var(--amber)}
.crumbs span{margin:0 8px;opacity:.6}

/* ---------- Hub filters ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 34px}
.chip{font:inherit;font-weight:700;font-size:14.5px;padding:10px 18px;border-radius:999px;border:1.5px solid var(--rule);background:var(--paper);color:var(--ink);cursor:pointer;transition:all .2s}
.chip:hover{border-color:var(--teal-3)}
.chip[aria-pressed="true"]{background:var(--deep);color:var(--cream);border-color:var(--deep)}
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:56px}
.topic{background:var(--teal);color:var(--cream);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;gap:6px;text-decoration:none;transition:transform .25s,background .25s}
.topic:hover{transform:translateY(-4px);background:var(--teal-2)}
.topic b{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:1.5rem;line-height:1.05}
.topic span{color:var(--mute);font-size:14.5px}
.topic i{font-style:normal;font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--amber)}
@media (max-width:900px){.topic-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.topic-grid{grid-template-columns:1fr}}
[hidden]{display:none!important}

/* ---------- Article page ---------- */
.progress{position:fixed;left:0;top:0;height:4px;width:0;background:linear-gradient(90deg,var(--amber),var(--mint));z-index:150}
.art-hero{position:relative;overflow:hidden;background:radial-gradient(900px 500px at 85% 20%,#0F3A3D 0%,rgba(15,58,61,0) 60%),var(--deep);color:var(--cream);padding:140px 0 64px}
.art-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;align-items:center}
.art-hero h1{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:clamp(2.4rem,5.4vw,4.4rem);line-height:1.0;margin:16px 0 18px}
.art-hero .lede{color:var(--mute);max-width:32em}
.art-hero-art{border-radius:18px;overflow:hidden;border:1px solid var(--rule-dark);background:var(--teal);box-shadow:0 30px 70px rgba(0,0,0,.4)}
.art-hero-art svg{width:100%;height:auto}
.byline{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:26px;font-size:14.5px;color:var(--mute)}
.byline .who{display:flex;align-items:center;gap:10px;color:var(--cream)}
.byline .who img{width:38px;height:38px;border-radius:50%;object-fit:cover;object-position:50% 18%;border:2px solid var(--amber)}
.byline span.sep{opacity:.35}
@media (max-width:900px){.art-hero{padding-top:118px}.art-hero-grid{grid-template-columns:1fr}}

.article-layout{display:grid;grid-template-columns:minmax(0,var(--read)) 280px;gap:72px;justify-content:center;padding:64px 0 24px}
.toc{position:sticky;top:96px;align-self:start;font-size:15px}
.toc .toc-h{font-family:var(--f-mono);font-weight:500;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber-ink);margin-bottom:12px}
.toc ol{list-style:none;margin:0 0 26px;padding:0;border-left:2px solid var(--rule)}
.toc li a{display:block;padding:7px 0 7px 16px;margin-left:-2px;border-left:2px solid transparent;text-decoration:none;color:var(--ink-soft);line-height:1.35;transition:color .2s,border-color .2s}
.toc li a:hover{color:var(--ink)}
.toc li a.on{color:var(--ink);border-left-color:var(--amber);font-weight:700}
.side-card{background:var(--deep);color:var(--cream);border-radius:var(--radius);padding:22px}
.side-card b{display:block;font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:1.5rem;line-height:1.05;margin-bottom:8px}
.side-card p{font-size:14.5px;color:var(--mute);margin-bottom:14px}
.share{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 22px}
.share a,.share button{font:inherit;font-size:13.5px;font-weight:700;border:1.5px solid var(--rule);background:var(--paper);color:var(--ink);padding:7px 13px;border-radius:999px;text-decoration:none;cursor:pointer}
.share a:hover,.share button:hover{border-color:var(--teal-3)}
@media (max-width:1060px){.article-layout{grid-template-columns:minmax(0,var(--read));gap:0}.toc{position:static;margin-bottom:34px}.toc ol{display:none}.toc.open ol{display:block}.toc .toc-btn{display:inline-flex}.toc .side-card,.toc .share{display:none}}
.toc-btn{display:none;font:inherit;font-weight:700;font-size:14px;background:var(--paper);border:1.5px solid var(--rule);border-radius:999px;padding:8px 16px;margin-bottom:12px;cursor:pointer}

.prose{font-size:19.5px;line-height:1.74;color:#12292B}
.prose>p:first-child{margin-top:0}
.prose h2{font-size:1.85rem;line-height:1.18;font-weight:800;letter-spacing:-.012em;margin:2.1em 0 .6em;scroll-margin-top:96px;color:var(--ink)}
.prose h2::before{content:"";display:block;width:44px;height:5px;background:var(--amber);border-radius:3px;margin-bottom:14px}
.prose h3{font-size:1.28rem;font-weight:800;margin:1.6em 0 .4em}
.prose a{color:var(--teal-2);text-decoration-color:rgba(18,71,74,.4);text-underline-offset:3px}
.prose a:hover{color:var(--ink);text-decoration-color:var(--amber)}
.prose ul,.prose ol{padding-left:1.25em;margin:0 0 1.2em}
.prose li{margin:.4em 0}
.prose strong{font-weight:700;color:var(--ink)}
.prose .lead{font-family:var(--f-serif);font-style:italic;font-size:1.32rem;line-height:1.6;color:var(--ink-soft);border-left:4px solid var(--amber);padding-left:22px;margin:0 0 1.6em}
.prose blockquote,.prose .pull-quote{margin:2em 0;padding:6px 0 6px 26px;border-left:5px solid var(--amber);font-family:var(--f-serif);font-style:italic;font-size:1.5rem;line-height:1.45;color:var(--ink)}
.takeaways{background:var(--paper);border:1px solid var(--rule);border-left:5px solid var(--teal-3);border-radius:12px;padding:22px 26px;margin:0 0 2em;font-size:17.5px;line-height:1.6}
.takeaways h2,.takeaways b.t{display:block;font-family:var(--f-mono);font-weight:500;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber-ink);margin:0 0 8px}
.takeaways h2::before{display:none}
.takeaways ul{margin:0;padding-left:1.1em}
.fig{margin:2.2em -24px;background:var(--teal);border-radius:16px;overflow:hidden;border:1px solid rgba(13,43,45,.5)}
.fig .fig-art svg{width:100%;height:auto}
.fig figcaption{padding:14px 22px 18px;font-size:14.5px;line-height:1.5;color:var(--mute);background:var(--deep)}
.fig figcaption b{color:var(--amber);font-weight:700}
@media (max-width:760px){.fig{margin-inline:-12px}.prose{font-size:18.5px}}
.callout{background:rgba(244,177,58,.14);border:1px solid rgba(244,177,58,.5);border-radius:12px;padding:18px 22px;margin:1.8em 0;font-size:17.5px}
.callout b{color:var(--amber-ink)}
.refs{margin-top:3em;padding-top:1.6em;border-top:1px solid var(--rule)}
.refs h2{font-size:1.1rem!important;margin:0 0 .8em!important;font-family:var(--f-mono);letter-spacing:.14em;text-transform:uppercase;font-weight:500!important;color:var(--amber-ink)}
.refs h2::before{display:none!important}
.refs ol{font-size:15.5px;line-height:1.55;color:var(--ink-soft);padding-left:1.4em}
.refs li{margin:.55em 0}
.refs a{white-space:nowrap}
.disclaimer{font-size:14.5px;color:var(--ink-soft);border-top:1px solid var(--rule);margin-top:2em;padding-top:1em}

.author-box{display:grid;grid-template-columns:96px 1fr;gap:22px;background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:24px;margin-top:2.6em;align-items:center}
.author-box img{width:96px;height:96px;border-radius:50%;object-fit:cover;object-position:50% 18%;border:3px solid var(--amber)}
.author-box b{font-size:1.15rem}
.author-box small{display:block;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--amber-ink);margin:2px 0 8px}
.author-box p{margin:0 0 8px;font-size:15.5px;color:var(--ink-soft);line-height:1.55}
.author-box a{font-weight:700;font-size:15px}
@media (max-width:520px){.author-box{grid-template-columns:1fr;text-align:center}.author-box img{margin-inline:auto}}

.course-cta{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;background:var(--deep);color:var(--cream);border-radius:var(--radius);padding:30px 32px;margin-top:2.4em;border:1px solid rgba(244,177,58,.4)}
.course-cta b{display:block;font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:1.8rem;line-height:1.05;margin-bottom:6px}
.course-cta p{margin:0;color:var(--mute);font-size:16px}
@media (max-width:640px){.course-cta{grid-template-columns:1fr}}
.related{padding:72px 0 96px}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:64px;align-items:start}
.timeline{list-style:none;margin:0;padding:0;border-left:2px solid var(--rule)}
.timeline li{position:relative;padding:0 0 26px 28px}
.timeline li::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--amber);border:2px solid var(--cream)}
.timeline b{display:block;font-size:1.1rem}
.timeline span{color:var(--ink-soft)}
.timeline small{display:block;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--amber-ink);margin-bottom:2px}
.panel-aside{background:var(--deep);color:var(--cream);border-radius:var(--radius);padding:26px;position:sticky;top:100px}
.panel-aside img{border-radius:12px;margin-bottom:16px;aspect-ratio:4/5;object-fit:cover;object-position:50% 18%;width:100%}
.panel-aside h3{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:1.6rem}
.panel-aside p{color:var(--mute);font-size:15px;margin:6px 0 14px}
.panel-aside .btn{width:100%;margin-top:6px}
@media (max-width:900px){.about-grid{grid-template-columns:1fr}.panel-aside{position:static;max-width:380px}}

/* ---------- Course page ---------- */
.facts{display:grid;grid-template-columns:repeat(4,1fr);background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden}
.fact{padding:24px 22px;border-right:1px solid var(--rule)}
.fact:last-child{border-right:none}
.fact .fl{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-ink);display:block;margin-bottom:8px}
.fact b{display:block;font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:1.7rem;line-height:1.05}
.fact span.fs{display:block;color:var(--ink-soft);font-size:14.5px;margin-top:6px}
.facts-note{margin-top:14px;font-family:var(--f-mono);font-size:12px;color:var(--ink-soft)}
@media (max-width:900px){.facts{grid-template-columns:1fr 1fr}.fact:nth-child(2){border-right:none}.fact:nth-child(-n+2){border-bottom:1px solid var(--rule)}}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pillar{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:28px 26px;transition:transform .25s,border-color .25s}
.pillar:hover{transform:translateY(-4px);border-color:var(--teal-3)}
.pillar .n{font-family:var(--f-display);font-size:2.6rem;line-height:1;color:var(--amber);display:block;margin-bottom:12px;-webkit-text-stroke:0}
.pillar h3{font-size:1.25rem;font-weight:700;margin-bottom:6px}
.pillar p{margin:0;color:var(--ink-soft);font-size:16px}
.pillar.more{background:var(--deep);color:var(--cream);border-color:var(--deep)}
.pillar.more p{color:var(--mute)}
@media (max-width:900px){.pillars{grid-template-columns:1fr 1fr}}@media (max-width:600px){.pillars{grid-template-columns:1fr}}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip-row .tag{font-size:12px;padding:7px 14px}
.fee-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:900px}
.fee-card{background:var(--paper);border:1px solid var(--rule);border-radius:18px;padding:30px;display:flex;flex-direction:column;gap:6px}
.fee-card.std{background:var(--amber);border-color:var(--amber)}
.fee-for{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-ink)}
.fee-card.std .fee-for{color:var(--deep)}
.fee-card h3{font-size:1.3rem;font-weight:700}
.fee-card p{margin:0;color:var(--ink-soft);font-size:15.5px;flex:1}
.fee-card.std p{color:#3A2A08}
.fee-amt{font-family:var(--f-display);font-size:4.6rem;line-height:1;margin-top:14px}
.fee-amt small{font-family:var(--f-mono);font-size:.9rem;letter-spacing:.1em;margin-right:6px;vertical-align:top;display:inline-block;margin-top:.5rem}
.fee-note{max-width:900px;margin-top:20px;color:var(--ink-soft)}
.fee-note b{color:var(--ink)}
@media (max-width:700px){.fee-grid{grid-template-columns:1fr}}
.reg-layout{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.reg-layout h2{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:clamp(2.2rem,4.4vw,3.4rem);line-height:1;margin:10px 0 16px}
.channels{display:grid;gap:10px;margin:22px 0}
.channel{display:flex;justify-content:space-between;align-items:center;gap:12px;background:var(--paper);border:1px solid var(--rule);border-radius:12px;padding:14px 18px;text-decoration:none;transition:border-color .2s,transform .2s}
.channel:hover{border-color:var(--teal-3);transform:translateX(4px)}
.channel .cl{font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--amber-ink);display:block}
.channel .cv{font-weight:700}
.channel .cg{font-weight:700;color:var(--teal-2);white-space:nowrap}
.howto{background:var(--deep);color:var(--cream);border-radius:var(--radius);padding:26px}
.howto .eyebrow{color:var(--amber)}
.howto h3{font-size:1.2rem;font-weight:700;margin:6px 0 12px}
.howto ol{margin:0;padding-left:1.2em;color:var(--mute)}
.howto li{margin:.5em 0}
.reg-form{background:var(--paper);border:1px solid var(--rule);border-radius:18px;padding:30px;display:grid;gap:16px;box-shadow:var(--shadow)}
.fee-out{background:rgba(244,177,58,.18);border:1px dashed rgba(138,90,18,.5);border-radius:12px;padding:12px 16px;font-weight:600}
.fee-out b{font-family:var(--f-display);font-weight:400;font-size:1.8rem;margin-left:8px;color:var(--amber-ink)}
.reg-form .btn{width:100%}
.form-hint{font-size:13.5px;color:var(--ink-soft);margin:0}
@media (max-width:900px){.reg-layout{grid-template-columns:1fr;gap:40px}}
.next-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.next-item{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:24px}
.next-item h3{font-size:1.2rem;font-weight:700;margin:10px 0 6px}
.next-item p{margin:0;color:var(--ink-soft);font-size:15.8px}
.next-item.wide{grid-column:1/-1;background:var(--deep);color:var(--cream);border-color:var(--deep)}
.next-item.wide p{color:var(--mute);margin-bottom:16px}
@media (max-width:700px){.next-grid{grid-template-columns:1fr}}
.sub-card{margin-top:34px;display:grid;grid-template-columns:1fr 1fr;gap:34px;background:var(--teal);color:var(--cream);border-radius:20px;padding:38px}
.sub-card h3{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:2rem;line-height:1.05;margin:8px 0 10px}
.sub-card p{color:var(--mute)}
.sub-card form{display:grid;gap:12px;align-content:center}
.sub-card label{font-weight:700;font-size:14px;display:block;margin-bottom:5px}
.sub-card input,.sub-card select{width:100%;font:inherit;padding:13px 15px;border-radius:12px;border:none;background:#fff;color:var(--ink)}
.follow{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.follow a{border:1px solid var(--rule-dark);border-radius:999px;padding:6px 13px;font-size:14px;text-decoration:none}
.follow a:hover{border-color:var(--amber);color:var(--amber)}
@media (max-width:800px){.sub-card{grid-template-columns:1fr;padding:26px}}

/* ---------- Thank-you / 404 ---------- */
.center-page{min-height:100vh;display:grid;place-items:center;text-align:center;padding:140px 0 80px}
.center-page h1{font-family:var(--f-display);font-weight:400;text-transform:uppercase;font-size:clamp(2.8rem,8vw,6rem);line-height:.96;margin:14px 0 18px}
.center-page p{max-width:34em;margin-inline:auto;color:var(--mute);font-size:1.15rem}
.center-page .hero-cta{justify-content:center;margin-top:28px}

/* ---------- Print ---------- */
@media print{.site-header,.site-footer,.toc,.progress,.course-cta,.related,.mobile-menu{display:none!important}.art-hero{background:#fff!important;color:#000!important;padding:20px 0!important}.art-hero h1,.art-hero .lede{color:#000!important}.article-layout{display:block}}