/* Dave Nab — site styles (v2)
   Layout: full-bleed bands, 1180px content column, big tight headings, quiet surfaces.
   Palette: the original navy ink + amber accent + skill colours; #FFFF00 ("sun") only for the
   DN mark, highlighter swipes, the scroll bar, text selection and tiny dots. */
:root{
  --bg:#faf8f4; --bg-2:#f3f0ea; --surface:#ffffff; --surface-2:#f2efe8; --text:#1b2330; --muted:#5f6672; --border:#e5e0d6;
  --ink:#1f3a5f; --ink-contrast:#ffffff; --accent:#d9822b; --accent-soft:#fbeedd;
  --sun:#FFFF00; --on-sun:#14181f;
  --listen:#2f6fb0; --listen-bg:#e5effa; --read:#2e7d5b; --read-bg:#e3f2ea; --write:#8a4fb5; --write-bg:#f1e8f8;
  --gram:#b4553a; --gram-bg:#f9e6df; --vocab:#9a7400; --vocab-bg:#fbf1d4;
  --glass:rgba(250,248,244,.72); --shadow:0 1px 2px rgba(20,30,50,.04),0 12px 32px rgba(20,30,50,.08);
  --shadow-lg:0 30px 80px -20px rgba(20,30,50,.25);
  --radius:22px; --radius-sm:14px;
  --f-sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-serif:"Fraunces",Georgia,"Times New Roman",serif;
  --ease:cubic-bezier(.2,.7,.2,1); --ease-out:cubic-bezier(.16,1,.3,1);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0f1319; --bg-2:#141922; --surface:#1a2029; --surface-2:#222a35; --text:#e8ebf0; --muted:#a2a9b5; --border:#2c3542;
  --ink:#9cc0ee; --ink-contrast:#0f1319; --accent:#f4b860; --accent-soft:#3a2c17;
  --listen:#8dbbf0; --listen-bg:#1c2b3d; --read:#7fd1aa; --read-bg:#1a3128; --write:#c9a1ec; --write-bg:#2c2238;
  --gram:#f0a58e; --gram-bg:#3a241d; --vocab:#ead07a; --vocab-bg:#352d14;
  --glass:rgba(15,19,25,.7); --shadow:none; --shadow-lg:0 30px 80px -20px rgba(0,0,0,.6);
  color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#0f1319; --bg-2:#141922; --surface:#1a2029; --surface-2:#222a35; --text:#e8ebf0; --muted:#a2a9b5; --border:#2c3542;
  --ink:#9cc0ee; --ink-contrast:#0f1319; --accent:#f4b860; --accent-soft:#3a2c17;
  --listen:#8dbbf0; --listen-bg:#1c2b3d; --read:#7fd1aa; --read-bg:#1a3128; --write:#c9a1ec; --write-bg:#2c2238;
  --gram:#f0a58e; --gram-bg:#3a241d; --vocab:#ead07a; --vocab-bg:#352d14;
  --glass:rgba(15,19,25,.7); --shadow:none; --shadow-lg:0 30px 80px -20px rgba(0,0,0,.6);
  color-scheme:dark;
}

/* ---------- base ---------- */
@view-transition{navigation:auto}
::view-transition-old(root){animation:vt-out .28s var(--ease) both}
::view-transition-new(root){animation:vt-in .45s var(--ease-out) both}
@keyframes vt-out{to{opacity:0;transform:scale(.985)}}
@keyframes vt-in{from{opacity:0;transform:translateY(14px)}}
.site-nav{view-transition-name:sitenav}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 var(--f-sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
[hidden]{display:none!important}
a{color:inherit}
::selection{background:var(--sun);color:var(--on-sun)}
h1,h2,h3,h4{font-family:var(--f-sans);font-weight:700;letter-spacing:-.035em;line-height:1.05;margin:0;text-wrap:balance}
h1 em,h2 em,h3 em{font-family:var(--f-serif);font-style:italic;font-weight:500;letter-spacing:-.02em}
p{margin:0}
.wrap{max-width:1180px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.narrow{max-width:760px}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:8px}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--text);color:var(--bg);padding:10px 16px;border-radius:999px}
.skip:focus{left:16px}

/* highlighter swipe (sun) */
.hl{background:linear-gradient(transparent 58%,var(--sun) 58% 92%,transparent 92%) no-repeat 0 0/0% 100%;transition:background-size 1.1s var(--ease-out) .5s;padding:0 .08em;color:inherit}
.hl.on,.no-js .hl{background-size:100% 100%}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .hl{color:var(--text);background-image:linear-gradient(transparent 82%,var(--sun) 82% 92%,transparent 92%)}}
:root[data-theme="dark"] .hl{background-image:linear-gradient(transparent 82%,var(--sun) 82% 92%,transparent 92%)}

/* scroll progress */
.progress{position:fixed;inset:0 0 auto;height:3px;z-index:60;pointer-events:none}
.progress span{display:block;height:100%;width:100%;background:var(--sun);transform-origin:0 50%;transform:scaleX(0)}

/* ---------- nav ---------- */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:51;background:var(--bg)}
.site-nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;transition:background .4s var(--ease),box-shadow .4s var(--ease),border-color .4s;border-bottom:1px solid transparent}
.site-nav.scrolled{background:var(--glass);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom-color:var(--border)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;transition:height .4s var(--ease)}
.scrolled .nav-in{height:60px}
.brand{display:flex;align-items:center;gap:11px;white-space:nowrap;text-decoration:none;font-weight:700;letter-spacing:-.02em;font-size:1.05rem}
.mark{width:36px;height:36px;border-radius:11px;background:var(--sun);color:var(--on-sun);display:grid;place-items:center;font-weight:800;font-size:.92rem;letter-spacing:-.04em;transition:transform .5s var(--ease-out)}
.brand:hover .mark{transform:rotate(-8deg) scale(1.06)}
.brand .dot{color:var(--accent)}
.menu{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.menu>li{position:relative}
.menu a,.menu button.drop{display:inline-flex;align-items:center;gap:6px;font:500 .93rem var(--f-sans);color:var(--muted);text-decoration:none;padding:9px 13px;border-radius:999px;border:0;background:none;cursor:pointer;transition:color .2s,background .2s}
.menu a:hover,.menu button.drop:hover,.menu a[aria-current=page],.menu .has-sub.cur>button{color:var(--text)}
.menu a[aria-current=page]::after,.menu .has-sub.cur>button::after{content:"";width:5px;height:5px;border-radius:50%;background:var(--sun);box-shadow:0 0 0 1px rgba(0,0,0,.25);margin-left:2px}
.drop svg{transition:transform .3s var(--ease)}
.sub{position:absolute;top:calc(100% + 8px);left:50%;min-width:260px;list-style:none;margin:0;padding:8px;background:var(--surface);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translate(-50%,-6px) scale(.98);transform-origin:top center;transition:opacity .25s var(--ease),transform .35s var(--ease-out),visibility .25s}
.sub::before{content:"";position:absolute;inset:-12px 0 auto;height:12px}
.has-sub:hover .sub,.has-sub:focus-within .sub,.has-sub.open .sub{opacity:1;visibility:visible;transform:translate(-50%,0) scale(1)}
.has-sub:hover .drop svg,.has-sub.open .drop svg{transform:rotate(180deg)}
.sub a{display:flex;flex-direction:column;align-items:flex-start;gap:0;border-radius:12px;padding:10px 14px;color:var(--text)}
.sub a small{color:var(--muted);font-weight:400;font-size:.8rem}
.sub a:hover{background:var(--surface-2)}
.sub a[aria-current=page]::after{display:none}
.nav-actions{display:flex;align-items:center;gap:6px}
.icon-btn{width:40px;height:40px;display:grid;place-items:center;border-radius:999px;border:0;background:none;color:var(--muted);cursor:pointer;transition:background .2s,color .2s}
.icon-btn:hover{background:var(--surface-2);color:var(--text)}
.theme .sun-i{display:none}
:root[data-theme="dark"] .theme .sun-i{display:block} :root[data-theme="dark"] .theme .moon-i{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .theme .sun-i{display:block} :root:not([data-theme="light"]) .theme .moon-i{display:none}}
.burger{display:none}
@media (max-width:980px){.menu{display:none}.burger{display:grid}.nav-actions .nav-cta{display:none}}

/* mobile sheet */
.sheet{position:fixed;inset:0;z-index:70;background:var(--bg);padding:calc(env(safe-area-inset-top,0px) + 18px) max(24px,env(safe-area-inset-right,0px)) 32px max(24px,env(safe-area-inset-left,0px));overflow-y:auto;opacity:0;visibility:hidden;transition:opacity .35s var(--ease),visibility .35s}
.sheet.open{opacity:1;visibility:visible}
.sheet-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.sheet ul{list-style:none;margin:0;padding:0}
.sheet li{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease-out),transform .6s var(--ease-out)}
.sheet.open li{opacity:1;transform:none}
.sheet.open li:nth-child(2){transition-delay:.04s}.sheet.open li:nth-child(3){transition-delay:.08s}.sheet.open li:nth-child(4){transition-delay:.12s}.sheet.open li:nth-child(5){transition-delay:.16s}.sheet.open li:nth-child(6){transition-delay:.2s}.sheet.open li:nth-child(7){transition-delay:.24s}.sheet.open li:nth-child(8){transition-delay:.28s}.sheet.open li:nth-child(9){transition-delay:.32s}.sheet.open li:nth-child(10){transition-delay:.36s}.sheet.open li:nth-child(11){transition-delay:.4s}
.sheet a{display:block;text-decoration:none;font-size:1.45rem;font-weight:700;letter-spacing:-.03em;padding:8px 0}
.sheet .sub-l a{font-size:1.1rem;font-weight:500;color:var(--muted);padding:6px 0 6px 18px}
.sheet .label{font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:18px 0 4px}
body.locked{overflow:hidden}

/* ---------- buttons, chips ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:999px;font:600 .97rem var(--f-sans);text-decoration:none;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;transition:transform .35s var(--ease-out),background .25s,box-shadow .35s,border-color .25s}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn:active{transform:translateY(0) scale(.98)}
.btn.primary{background:var(--ink);border-color:var(--ink);color:var(--ink-contrast)}
.btn.ghost{background:transparent}
.btn .arr{transition:transform .35s var(--ease-out)}
.btn:hover .arr{transform:translateX(4px)}
.btn.sm{padding:9px 16px;font-size:.88rem}
.cta{display:flex;flex-wrap:wrap;gap:10px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.8rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--sun);box-shadow:0 0 0 1px rgba(0,0,0,.22)}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;font-weight:600;padding:5px 12px;border-radius:999px;background:var(--surface-2);color:var(--muted)}
.link{font-weight:600;text-decoration:none;color:var(--ink);display:inline-flex;gap:6px;align-items:center}
.link:hover{text-decoration:underline;text-underline-offset:4px}
.link .arr{transition:transform .35s var(--ease-out)} .link:hover .arr{transform:translateX(4px)}

/* ---------- reveal on scroll ---------- */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease-out),transform 1.1s var(--ease-out);transition-delay:var(--d,0s)}
.js .reveal.in{opacity:1;transform:none}
.js .reveal-scale{opacity:0;transform:scale(.94);transition:opacity 1s var(--ease-out),transform 1.3s var(--ease-out);transition-delay:var(--d,0s)}
.js .reveal-scale.in{opacity:1;transform:none}

/* hero word rise (CSS only, runs once on load) */
.rise .w{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.08em;margin-bottom:-.08em}
.rise .w>span{display:inline-block;animation:rise 1s var(--ease-out) both;animation-delay:calc(var(--i) * 60ms + 120ms)}
@keyframes rise{from{transform:translateY(105%);opacity:0}}
.fade-up{animation:fadeup 1s var(--ease-out) both;animation-delay:var(--d,.5s)}
@keyframes fadeup{from{opacity:0;transform:translateY(18px)}}

/* ---------- sections ---------- */
section{padding-block:clamp(72px,10vw,128px)}
.band{background:var(--bg-2)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px 40px;margin-bottom:clamp(32px,5vw,56px)}
.sec-head>div{max-width:680px;min-width:0}
.sec-head h2,.h2{font-size:clamp(1.8rem,3.6vw,2.6rem)}
.sec-head p{color:var(--muted);margin-top:16px;font-size:1.1rem}
.sec-head .eyebrow{margin-bottom:16px}

/* home hero */
.hero{padding-block:clamp(36px,6vw,80px) clamp(56px,8vw,100px);overflow-x:clip}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(32px,5vw,72px);align-items:center}
.hero-grid>*{min-width:0}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}}
.hero h1{font-size:clamp(2.2rem,5vw,3.9rem);letter-spacing:-.04em;line-height:1.04}
.hero .lead{font-size:clamp(1.08rem,1.6vw,1.25rem);color:var(--muted);max-width:56ch;margin:26px 0 32px}
.portrait{position:relative;justify-self:center;width:min(100%,440px)}
.portrait .ring{position:absolute;inset:-6%;border-radius:50%;background:conic-gradient(from 200deg,var(--sun),transparent 30%,transparent 70%,var(--accent-soft));opacity:.55;filter:blur(2px);animation:spin 18s linear infinite}
@keyframes spin{to{transform:rotate(1turn)}}
.portrait img{position:relative;border-radius:50%;aspect-ratio:1;object-fit:cover;width:100%;box-shadow:var(--shadow-lg)}
.float{position:absolute;display:flex;align-items:center;gap:8px;background:var(--glass);-webkit-backdrop-filter:blur(16px) saturate(180%);backdrop-filter:blur(16px) saturate(180%);border:1px solid var(--border);padding:10px 16px;border-radius:999px;font-size:.86rem;font-weight:600;box-shadow:var(--shadow);white-space:nowrap;animation:bob 6s ease-in-out infinite}
.float b{font-weight:800}
.float.f1{top:8%;left:-6%}.float.f2{bottom:14%;right:-8%;animation-delay:-2s}.float.f3{bottom:-2%;left:6%;animation-delay:-4s}
@media (max-width:520px){.float.f1{left:0}.float.f2{right:0}}
@keyframes bob{50%{transform:translateY(-8px)}}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.stats>div{background:var(--surface);padding:26px 24px;min-width:0}
.stats .n{font-size:clamp(1.6rem,2.8vw,2.2rem);font-weight:800;letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.stats .l{color:var(--muted);font-size:.92rem;margin-top:8px}
@media (max-width:760px){.stats{grid-template-columns:1fr 1fr}}

/* service cards */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:900px){.svc-grid{grid-template-columns:1fr}}
.svc{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;text-decoration:none;transition:transform .6s var(--ease-out),box-shadow .6s var(--ease-out)}
.svc:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.svc .art{aspect-ratio:4/3;background:var(--surface-2);display:grid;place-items:center;overflow:hidden}
.svc .art img{width:78%;height:88%;object-fit:contain;transition:transform 1.2s var(--ease-out)}
.svc:hover .art img{transform:scale(1.06)}
.svc .body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:10px;flex:1}
.svc h3{font-size:1.5rem}
.svc p{color:var(--muted)}
.svc .more{margin-top:auto;padding-top:8px;font-weight:600;color:var(--ink);display:flex;gap:6px;align-items:center}
.svc .more .arr{transition:transform .35s var(--ease-out)} .svc:hover .more .arr{transform:translateX(5px)}

/* big statement: words fill as you scroll */
.statement{padding-block:clamp(90px,14vw,180px)}
.statement p{font-size:clamp(1.6rem,3.4vw,2.7rem);font-weight:700;letter-spacing:-.04em;line-height:1.12;max-width:20ch}
.statement .wd{opacity:.18;transition:opacity .3s linear}
.statement .wd.on{opacity:1}
.no-js .statement .wd{opacity:1}
.statement .by{margin-top:28px;color:var(--muted);font-size:1rem}

/* testimonials */
.quotes{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding:4px 2px 24px;margin:0 -2px;overscroll-behavior-x:contain}
.quotes::-webkit-scrollbar{display:none}
.quote{scroll-snap-align:start;flex:0 0 min(420px,86%);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;display:flex;flex-direction:column;gap:22px}
.quote blockquote{margin:0;font-size:1.06rem;line-height:1.6}
.quote blockquote::before{content:"“";display:block;font-family:var(--f-serif);font-size:3.4rem;line-height:.6;color:var(--accent);margin-bottom:10px}
.who{display:flex;align-items:center;gap:12px;margin-top:auto}
.who img{width:48px;height:48px;border-radius:50%;object-fit:cover}
.who b{display:block;font-size:1rem}
.who span{font-size:.85rem;color:var(--muted)}
.car-nav{display:flex;gap:8px}
.car-nav button{width:46px;height:46px;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;display:grid;place-items:center;transition:transform .3s var(--ease-out),background .2s}
.car-nav button:hover{transform:scale(1.06)}
.car-nav button:disabled{opacity:.35;cursor:default;transform:none}

/* resources */
.res-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media (max-width:900px){.res-grid{grid-template-columns:repeat(2,1fr)}}
.res{position:relative;text-decoration:none;display:flex;flex-direction:column;gap:12px}
.res .thumb{border-radius:var(--radius);overflow:hidden;background:var(--surface-2);aspect-ratio:1}
.res .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease-out)}
.res:hover .thumb img{transform:scale(1.05)}
.res h3{font-size:1.1rem;letter-spacing:-.02em}
.res .meta{font-size:.85rem;color:var(--muted)}

/* apps teaser */
.apps-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media (max-width:900px){.apps-strip{grid-template-columns:repeat(2,1fr)}}
@media (max-width:440px){.apps-strip{grid-template-columns:1fr}}
.app-mini{padding:20px;border-radius:var(--radius-sm);background:var(--cbg);color:var(--c);text-decoration:none;display:flex;flex-direction:column;gap:6px;transition:transform .5s var(--ease-out)}
.app-mini:hover{transform:translateY(-4px)}
.app-mini small{font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;opacity:.85}
.app-mini b{font-size:1.05rem;color:var(--text);letter-spacing:-.02em}
.listen{--c:var(--listen);--cbg:var(--listen-bg)} .read{--c:var(--read);--cbg:var(--read-bg)}
.write{--c:var(--write);--cbg:var(--write-bg)} .gram{--c:var(--gram);--cbg:var(--gram-bg)} .vocab{--c:var(--vocab);--cbg:var(--vocab-bg)}
.slides{--c:var(--accent);--cbg:var(--accent-soft)} .wordlist{--c:var(--read);--cbg:var(--read-bg)} .worksheet{--c:var(--listen);--cbg:var(--listen-bg)}

/* about split */
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(32px,6vw,88px);align-items:center}
.split>*{min-width:0}
@media (max-width:860px){.split{grid-template-columns:1fr}}
.split .photo{border-radius:28px;overflow:hidden;box-shadow:var(--shadow-lg)}
.split .photo img{width:100%;aspect-ratio:4/5;object-fit:cover;transition:transform 1.4s var(--ease-out)}
.split .photo:hover img{transform:scale(1.03)}
.prose p{color:var(--muted);font-size:1.08rem}
.prose p+p{margin-top:16px}
.prose strong{color:var(--text);font-weight:600}
.prose h3{font-size:1.35rem;margin:34px 0 10px;letter-spacing:-.025em}
.prose ul{color:var(--muted);padding-left:1.2em;margin:12px 0}
.prose li{margin:6px 0}
.prose li::marker{color:var(--accent)}

/* moments marquee */
.marquee{overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.marquee-track{display:flex;gap:16px;width:max-content;animation:marq 60s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee img{height:clamp(200px,26vw,300px);width:auto;border-radius:18px;object-fit:cover}
@keyframes marq{to{transform:translateX(-50%)}}

/* contact band */
.contact{position:relative;overflow:hidden;border-radius:32px;background:var(--ink);color:var(--ink-contrast);padding:clamp(40px,7vw,88px)}
.contact h2{font-size:clamp(1.8rem,3.8vw,2.8rem);max-width:20ch}
.contact p{opacity:.8;margin-top:18px;max-width:52ch;font-size:1.1rem}
.contact .cta{margin-top:32px}
.contact .btn{background:var(--ink-contrast);color:var(--ink);border-color:transparent}
.contact .btn.ghost{background:transparent;color:var(--ink-contrast);border-color:color-mix(in srgb,var(--ink-contrast) 35%,transparent)}
.contact .sun-blob{position:absolute;right:-70px;top:-70px;width:clamp(160px,22vw,260px);aspect-ratio:1;border-radius:50%;background:var(--sun);transform:translate3d(0,var(--py,0),0)}
.email-line{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:22px;font-weight:600}
.email-line code{font-family:inherit;user-select:all;background:color-mix(in srgb,var(--ink-contrast) 14%,transparent);padding:6px 12px;border-radius:999px}

/* page hero (inner pages) */
.page-hero{padding-block:clamp(40px,6vw,88px) clamp(28px,4vw,48px)}
.page-hero h1{font-size:clamp(2.1rem,4.8vw,3.5rem);letter-spacing:-.04em;line-height:1.05}
.page-hero .lead{font-size:clamp(1.08rem,1.6vw,1.24rem);color:var(--muted);max-width:60ch;margin-top:22px}
.page-hero .cta{margin-top:30px}
.crumb{font-size:.88rem;color:var(--muted);margin-bottom:22px;display:flex;gap:8px;flex-wrap:wrap}
.crumb a{text-decoration:none} .crumb a:hover{color:var(--text)}

/* feature blocks (course pages) */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px);align-items:start}
.feature>*{min-width:0}
@media (max-width:860px){.feature{grid-template-columns:1fr}}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:clamp(24px,3.5vw,40px)}
.panel h3{font-size:1.3rem;margin-bottom:14px;letter-spacing:-.025em}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.ticks li{display:grid;grid-template-columns:26px 1fr;gap:10px;color:var(--muted);align-items:start}
.ticks li::before{content:"";width:22px;height:22px;margin-top:2px;border-radius:50%;background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23d9822b' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/13px no-repeat}
.ticks li strong{color:var(--text);font-weight:600}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
@media (max-width:620px){.facts{grid-template-columns:1fr}}
.fact{background:var(--surface-2);border-radius:var(--radius-sm);padding:18px 20px}
.fact b{display:block;font-size:1.25rem;letter-spacing:-.025em}
.fact span{color:var(--muted);font-size:.9rem}
.media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow)}
.note{color:var(--muted);font-size:.92rem}

/* pricing */
.prices{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:900px){.prices{grid-template-columns:1fr}}
.price-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;display:flex;flex-direction:column;gap:14px;transition:transform .6s var(--ease-out),box-shadow .6s var(--ease-out)}
.price-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.price-card .amt{font-size:2.5rem;font-weight:800;letter-spacing:-.05em;line-height:1}
.price-card .amt small{font-size:1rem;font-weight:500;color:var(--muted);letter-spacing:0}
.price-card h3{font-size:1.3rem}
.price-card p{color:var(--muted)}
.price-card.feat{border-color:var(--ink);box-shadow:0 0 0 1px var(--ink)}
.badge{align-self:flex-start;font-size:.75rem;font-weight:700;padding:4px 10px;border-radius:999px;background:var(--sun);color:var(--on-sun)}

/* CEFR levels */
.levels{display:grid;gap:16px}
.level{display:grid;grid-template-columns:120px 1fr;gap:clamp(18px,3vw,40px);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:clamp(22px,3vw,34px)}
.level>*{min-width:0}
@media (max-width:640px){.level{grid-template-columns:1fr}}
.level .code{font-size:2.8rem;font-weight:800;letter-spacing:-.06em;line-height:.9;color:var(--c)}
.level .code small{display:block;font-size:.8rem;letter-spacing:0;font-weight:600;color:var(--muted);margin-top:8px}
.level h3{font-size:1.4rem;margin-bottom:8px}
.level p{color:var(--muted)}
.level dl{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:16px 0 0;font-size:.94rem}
.level dt{font-weight:600}
.level dd{margin:0;color:var(--muted)}
.lv1{--c:var(--listen)}.lv2{--c:var(--read)}.lv3{--c:var(--write)}.lv4{--c:var(--gram)}.lv5{--c:var(--vocab)}.lv6{--c:var(--accent)}

/* testimonial wall */
.wall{columns:3 320px;column-gap:20px}
.wall .quote{break-inside:avoid;margin-bottom:20px;flex:none;width:auto}

/* gallery */
.gallery{columns:3 280px;column-gap:16px}
.gallery figure{break-inside:avoid;margin:0 0 16px;position:relative;border-radius:18px;overflow:hidden;cursor:zoom-in;background:var(--surface-2)}
.gallery img{width:100%;transition:transform 1.2s var(--ease-out)}
.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{position:absolute;inset:auto 0 0;padding:40px 16px 14px;font-size:.9rem;font-weight:600;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.6));opacity:0;transform:translateY(8px);transition:opacity .4s var(--ease),transform .5s var(--ease-out)}
.gallery figure:hover figcaption,.gallery figure:focus-visible figcaption{opacity:1;transform:none}
@media (hover:none){.gallery figcaption{opacity:1;transform:none}}
.lightbox{border:0;padding:0;background:transparent;max-width:min(1100px,94vw);max-height:92vh;overflow:visible}
.lightbox::backdrop{background:rgba(8,10,14,.86);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.lightbox[open]{animation:lb .5s var(--ease-out)}
@keyframes lb{from{opacity:0;transform:scale(.94)}}
.lightbox img{max-height:82vh;width:auto;border-radius:16px;margin:0 auto}
.lightbox p{color:#fff;text-align:center;margin-top:12px;font-weight:600}
.lightbox .x{position:absolute;top:-14px;right:-14px;width:40px;height:40px;border-radius:50%;border:0;background:#fff;color:#111;font-size:1.3rem;cursor:pointer}

/* cards (resources hub, apps) */
.filters{display:flex;flex-wrap:wrap;gap:8px}
.filters button{font:500 .9rem var(--f-sans);padding:8px 16px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--muted);cursor:pointer;transition:background .25s,color .25s,border-color .25s}
.filters button[aria-pressed=true]{background:var(--text);color:var(--bg);border-color:var(--text)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:20px}
.card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:12px;transition:transform .6s var(--ease-out),box-shadow .6s var(--ease-out),border-color .3s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--c,var(--border))}
.card .top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.tag{font-size:.78rem;font-weight:600;padding:4px 11px;border-radius:999px;color:var(--c);background:var(--cbg)}
.status{font-size:.78rem;color:var(--muted);display:flex;align-items:center;gap:6px}
.status::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
.status.live::before{background:var(--read)}
.card h3{font-size:1.3rem;letter-spacing:-.025em;line-height:1.15}
.card p{color:var(--muted);font-size:.96rem}
.focus{display:flex;flex-wrap:wrap;gap:6px}
.focus span{font-size:.76rem;background:var(--surface-2);color:var(--muted);padding:3px 10px;border-radius:999px}
.card .go{margin-top:auto;padding-top:6px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-size:.93rem;font-weight:600}
.card .go a{color:var(--c);text-decoration:none}
.card .go .soon{color:var(--muted);font-weight:500}
.card a.stretch::after{content:"";position:absolute;inset:0;border-radius:var(--radius)}
.card:has(a.stretch){cursor:pointer}
.card .go a.btn-card{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:999px;background:var(--c);color:var(--bg)}
.card img.thumb{width:calc(100% + 48px);max-width:none;margin:-24px -24px 4px;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius) var(--radius) 0 0;border-bottom:1px solid var(--border)}
.price{font-size:.8rem;font-weight:700;padding:3px 10px;border-radius:999px;border:1px solid var(--border)}
.price.free{color:var(--read);border-color:var(--read)}
.empty{grid-column:1/-1;border:2px dashed var(--border);border-radius:var(--radius);padding:32px;text-align:center;color:var(--muted)}
.subhead{font-size:1.6rem;margin:0 0 18px;letter-spacing:-.03em}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:820px){.principles{grid-template-columns:1fr}}
.pr{padding:28px;border-radius:var(--radius);background:var(--surface)}
.band .pr{background:var(--surface)}
.pr h3{font-size:1.2rem;margin-bottom:8px;letter-spacing:-.02em}
.pr p{color:var(--muted);font-size:.96rem}
.previews{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (max-width:620px){.previews{grid-template-columns:1fr}}
.previews img{width:100%;border-radius:14px;border:1px solid var(--border);box-shadow:var(--shadow)}
.outline{margin:0;padding-left:1.3em;color:var(--muted)}
.outline li{margin:6px 0}
.notebox{background:var(--surface-2);border-radius:var(--radius);padding:22px 26px;color:var(--muted);font-size:.96rem}
.notebox h3{color:var(--text);font-size:1.1rem;margin-bottom:6px;letter-spacing:-.02em}

/* footer */
.site-foot{border-top:1px solid var(--border);padding-block:56px 40px;color:var(--muted);font-size:.93rem}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:32px}
.foot-grid>*{min-width:0}
@media (max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-grid h4{font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;color:var(--text);margin-bottom:12px;font-weight:600}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot-grid a{text-decoration:none} .foot-grid a:hover{color:var(--text)}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;border-top:1px solid var(--border);margin-top:40px;padding-top:22px;font-size:.85rem}
.social{display:flex;gap:8px;margin-top:16px}
.social a{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--border);transition:transform .3s var(--ease-out),background .2s}
.social a:hover{transform:translateY(-2px);background:var(--surface-2)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .js .reveal,.js .reveal-scale{opacity:1;transform:none}
  .statement .wd{opacity:1}
  .hl{background-size:100% 100%}
  .marquee{overflow-x:auto}
}

/* AI focus band + product feature (home) */
.ai-band{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--border);padding-block:clamp(64px,8vw,104px)}
.ai-grid{grid-template-columns:repeat(4,1fr);gap:16px}
@media (max-width:1080px){.ai-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.ai-grid{grid-template-columns:1fr}}
.ai-grid .card{padding:22px;gap:10px}
.ai-grid .card h3{font-size:1.12rem}
.ai-grid .card p{font-size:.9rem}
.ai-band .pr{background:var(--surface);border:1px solid var(--border)}
.product{display:grid;grid-template-columns:1.1fr .9fr;background:var(--surface);border:1px solid var(--border);border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}
.product>*{min-width:0}
@media (max-width:860px){.product{grid-template-columns:1fr}}
.product-img{display:block;overflow:hidden;background:var(--surface-2)}
.product-img img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease-out)}
.product:hover .product-img img{transform:scale(1.03)}
.product-body{padding:clamp(24px,4vw,44px);display:flex;flex-direction:column;gap:16px;justify-content:center}
.product-body h3{font-size:clamp(1.5rem,2.6vw,2rem)}
.product-body p{color:var(--muted)}
.buy-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px 18px;margin-top:6px}
.buy-row .amt{font-size:2rem;font-weight:800;letter-spacing:-.04em}
.res-3{grid-template-columns:repeat(3,minmax(0,200px))}
@media (max-width:700px){.res-3{grid-template-columns:repeat(3,1fr);gap:12px}.res-3 h3{font-size:.9rem}}

/* booking form */
.book{display:grid;gap:22px}
.steps{display:flex;gap:6px;position:sticky;top:64px;z-index:5;padding:6px 0}
.steps span{flex:1;height:4px;border-radius:4px;background:var(--border);transition:background .5s var(--ease)}
.steps span.on{background:var(--sun);box-shadow:0 0 0 1px rgba(0,0,0,.12)}
.fs{border:1px solid var(--border);background:var(--surface);border-radius:var(--radius);padding:clamp(20px,3.5vw,32px);margin:0;min-width:0;display:grid;gap:20px}
.fs legend{float:left;width:100%;display:flex;align-items:center;gap:12px;font-size:1.2rem;font-weight:700;letter-spacing:-.02em;padding:0;margin-bottom:2px}
.fs legend+*{clear:both}
.num{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:.85rem;background:var(--surface-2);color:var(--text);transition:background .4s var(--ease)}
.fs:has(:checked) .num,.fs:focus-within .num{background:var(--sun);color:var(--on-sun)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px}
@media (max-width:620px){.row2{grid-template-columns:1fr}}
.field{display:grid;gap:8px;min-width:0}
.field label,.lbl{font-weight:600;font-size:.94rem}
.field small,.lbl small{font-weight:400;color:var(--muted)}
.book input:not([type=radio]):not([type=checkbox]),.book textarea{width:100%;font:inherit;font-size:1rem;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:14px;padding:13px 15px;transition:border-color .2s,box-shadow .25s}
.book textarea{resize:vertical;min-height:110px}
.book input:focus,.book textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 4px color-mix(in srgb,var(--ink) 18%,transparent)}
.opts{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.opts.two{max-width:520px}
@media (max-width:560px){.opts{grid-template-columns:1fr}}
.opt,.pill{position:relative;cursor:pointer}
.opt input,.pill input{position:absolute;opacity:0;pointer-events:none}
.opt span{display:flex;flex-direction:column;gap:2px;height:100%;padding:14px 16px 14px 46px;border:1px solid var(--border);border-radius:16px;background:var(--bg);transition:border-color .2s,background .25s,transform .3s var(--ease-out)}
.opt span::before{content:"";position:absolute;left:16px;top:17px;width:18px;height:18px;border-radius:50%;border:2px solid var(--border);background:var(--surface);transition:border .2s,background .2s}
.opt b{font-weight:600}
.opt small{color:var(--muted);font-size:.84rem}
.opt:hover span{transform:translateY(-1px)}
.opt input:checked+span{border-color:var(--ink);background:color-mix(in srgb,var(--ink) 7%,var(--surface))}
.opt input:checked+span::before{border:5px solid var(--ink);background:var(--sun)}
.opt input:focus-visible+span,.pill input:focus-visible+span{outline:3px solid var(--accent);outline-offset:2px}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill span{display:inline-block;padding:9px 16px;border:1px solid var(--border);border-radius:999px;background:var(--bg);font-weight:500;font-size:.93rem;transition:background .25s,color .25s,border-color .25s,transform .3s var(--ease-out)}
.pill:hover span{transform:translateY(-1px)}
.pill input:checked+span{background:var(--ink);border-color:var(--ink);color:var(--ink-contrast)}
.hint{font-size:.86rem;color:var(--muted)}
.err{display:none;color:var(--gram);font-size:.86rem;font-weight:500}
.bad>.err,.bad .err{display:block}
.bad input:not([type=radio]):not([type=checkbox]),.bad textarea{border-color:var(--gram)}
.fs.bad{border-color:var(--gram)}
.reveal-if:not([hidden]){animation:fadeup .5s var(--ease-out)}
.submit-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px}
.submit-row .btn{padding:16px 28px;font-size:1.02rem}
.submit-row .btn:disabled{opacity:.6;cursor:wait;transform:none}
.form-error{background:var(--gram-bg);color:var(--gram);padding:14px 18px;border-radius:14px;font-weight:500}
.done{text-align:center;padding:clamp(40px,6vw,72px) 20px;background:var(--surface);border:1px solid var(--border);border-radius:28px;outline:none;animation:fadeup .7s var(--ease-out)}
.done h2{font-size:clamp(1.7rem,3.4vw,2.4rem);margin:18px 0 10px}
.done p{color:var(--muted);max-width:48ch;margin:0 auto}
.tick{width:72px;height:72px;margin:0 auto}
.tick circle{fill:var(--sun);stroke:none}
.tick path{fill:none;stroke:var(--on-sun);stroke-width:4;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:40;stroke-dashoffset:40;animation:draw .6s .25s var(--ease-out) forwards}
@keyframes draw{to{stroke-dashoffset:0}}