/* Nas: personal landing page. Built on tokens.css (load that first). */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%; scroll-behavior:smooth}
body{margin:0; background:var(--color-bg); color:var(--color-text); font-family:var(--font-sans); font-size:17px; line-height:1.65; -webkit-font-smoothing:antialiased}
img,svg{display:block; max-width:100%}
a{color:inherit}
h1,h2,h3{margin:0; font-weight:var(--weight-bold); letter-spacing:var(--tracking-tight); line-height:1.08; text-wrap:balance}
p{margin:0; text-wrap:pretty}
:focus-visible{outline:2px solid var(--color-accent); outline-offset:3px; border-radius:2px}
::selection{background:var(--color-accent); color:#fff}

.container{width:100%; max-width:1080px; margin-inline:auto; padding-inline:clamp(16px,5vw,48px)}
.skip{position:absolute; left:16px; top:-60px; background:var(--color-text); color:var(--color-bg); padding:10px 16px; border-radius:var(--radius-md); z-index:100; text-decoration:none}
.skip:focus{top:12px}
.label{font-family:var(--font-mono); font-size:13px; letter-spacing:var(--tracking-label); text-transform:uppercase; color:var(--color-text-muted)}
.muted{color:var(--color-text-muted)}

/* logo */
.logo{display:inline-block; color:var(--color-text); line-height:0}
.logo svg{height:100%; width:auto; overflow:visible}
.logo .dot{fill:var(--color-accent)}
.logo-write .letters{animation:write var(--dur-signature) var(--ease-nas) .15s both}
.logo-write .dot{transform-box:fill-box; transform-origin:center; animation:land var(--dur-ui) var(--ease-arrive) 1.5s both}
@keyframes write{from{clip-path:inset(-20% 100% -20% -20%)}to{clip-path:inset(-20% -20% -20% -20%)}}
@keyframes land{from{transform:scale(0)}to{transform:scale(1)}}

/* header */
.site-header .container{display:flex; align-items:center; justify-content:space-between; height:80px; gap:20px}
.site-header .logo{height:44px}
.site-header nav{display:flex; gap:clamp(16px,3vw,32px); font-size:15px; font-weight:var(--weight-medium)}
.site-header nav a{text-decoration:none; position:relative; white-space:nowrap}
.site-header nav a::after{content:""; position:absolute; left:50%; bottom:-6px; width:5px; height:5px; margin-left:-2.5px; border-radius:50%; background:var(--color-accent); transform:scale(0); transition:transform var(--dur-micro) var(--ease-arrive)}
.site-header nav a:hover::after{transform:scale(1)}
@media (max-width:480px){ .site-header nav .hide-sm{display:none} .site-header nav{gap:14px; font-size:14px} .site-header .logo{height:38px} }

/* hero */
.hero{padding-block:clamp(32px,6vw,80px) clamp(72px,10vw,128px)}
.hero-grid{display:grid; grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr); gap:clamp(36px,7vw,96px); align-items:center}
.hero .label,.t-hero .label{display:block; margin-bottom:20px}
.hero h1{font-size:clamp(44px,7.4vw,92px); letter-spacing:-.045em; line-height:1}
.hero .intro,.t-hero .intro{font-size:clamp(18px,1.8vw,21px); color:var(--color-text-muted); margin-top:28px; max-width:46ch}
.hero .intro strong,.t-hero .intro strong{color:var(--color-text); font-weight:var(--weight-medium)}
/* about tabs */
.hl{transition:color 600ms var(--ease-arrive)}
.hl.on{color:var(--color-accent)}
.panels{display:grid; margin-top:28px}
.panel{grid-area:1/1; visibility:hidden}
.panel.is-active{visibility:visible}
.panels .intro{margin-top:0}
.panel-meta{display:flex; flex-wrap:wrap; gap:6px 18px; margin-top:16px; font-family:var(--font-mono); font-size:13px; letter-spacing:.06em; text-transform:uppercase; color:var(--color-text-muted)}
.panel-meta .m{display:inline}
.panel-meta .m + .m::before{content:''; display:inline-block; width:4px; height:4px; border-radius:50%; background:var(--color-accent); margin-right:14px; vertical-align:middle}
.panel.animate .w{display:inline-block; animation:wordIn 640ms var(--ease-arrive) both; animation-delay:calc(var(--i) * 16ms)}
@keyframes wordIn{from{opacity:0; transform:translateY(.45em); filter:blur(6px)}to{opacity:1; transform:none; filter:none}}
.tabs{display:flex; flex-wrap:wrap; gap:8px; margin-top:28px}
.tab{font-family:inherit; border:1px solid var(--color-border); background:transparent; color:var(--color-text); border-radius:var(--radius-pill); padding:9px 18px; font-size:15px; font-weight:var(--weight-medium); cursor:pointer; transition:border-color var(--dur-micro) var(--ease-arrive), color var(--dur-micro), background var(--dur-micro)}
.tab:hover{border-color:var(--color-text)}
.tab[aria-selected="true"],.tab[aria-pressed="true"]{border-color:var(--color-accent); color:var(--color-accent); background:color-mix(in srgb,var(--color-accent) 8%,transparent)}
@media (max-width:820px){ .hero-grid{grid-template-columns:1fr} .photo-wrap{max-width:420px} .hero-grid .photo-wrap{order:-1} }

/* photo */
.photo-wrap{position:relative; width:100%}
.photo{aspect-ratio:4/5; border-radius:6px; overflow:hidden; background:var(--nas-graphite); position:relative}
.photo img{width:100%; height:100%; object-fit:cover; object-position:68% 50%; filter:grayscale(1) contrast(1.08); transition:filter 900ms var(--ease-nas)}
.photo:hover img{filter:grayscale(0) contrast(1)}
.photo .ph{position:absolute; inset:0; display:grid; place-items:center; align-content:center; gap:14px; color:#fff; text-align:center; padding:24px}
.photo .ph .logo{height:64px; color:#fff}
.photo .ph .logo .dot{fill:var(--nas-iris-light)}
.photo .ph p{font-family:var(--font-mono); font-size:12px; letter-spacing:.12em; text-transform:uppercase; color:rgba(255,255,255,.6)}
.photo.has-img .ph{display:none}
.photo.landscape{aspect-ratio:4/3}

/* links */
.section{padding-block:clamp(64px,9vw,112px); border-top:1px solid var(--color-border)}
.section-head{margin-bottom:clamp(28px,4vw,44px); display:grid; gap:12px}
.section-head h2{font-size:clamp(28px,4vw,42px)}
.links{display:grid; border-top:1px solid var(--color-text)}
.link-row{display:grid; grid-template-columns:56px minmax(0,1fr) auto; gap:20px; align-items:center; padding-block:clamp(22px,3vw,32px); border-bottom:1px solid var(--color-border); text-decoration:none}
.link-row .n{font-family:var(--font-mono); font-size:14px; color:var(--color-text-muted)}
.link-row h3{font-size:clamp(22px,3vw,32px); letter-spacing:-.03em; transition:transform var(--dur-ui) var(--ease-arrive)}
.link-row p{color:var(--color-text-muted); font-size:15px; margin-top:4px}
.link-row .go{width:48px; height:48px; border-radius:50%; border:1px solid var(--color-border); display:grid; place-items:center; transition:background var(--dur-micro) var(--ease-arrive), border-color var(--dur-micro), color var(--dur-micro), transform var(--dur-ui) var(--ease-arrive)}
.link-row:hover h3{transform:translateX(6px)}
.link-row:hover .go{background:var(--color-accent); border-color:var(--color-accent); color:#fff; transform:rotate(-45deg)}
.link-row.soon{cursor:default}
.link-row.soon:hover h3{transform:none}
.soon-tag{font-family:var(--font-mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:var(--color-accent); border:1px solid var(--color-accent); border-radius:var(--radius-pill); padding:4px 12px; white-space:nowrap}
@media (max-width:560px){ .link-row{grid-template-columns:32px minmax(0,1fr) auto; gap:14px} .link-row .go{width:40px; height:40px} }

/* about */
.about-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:clamp(24px,4vw,48px)}
.about-item{display:grid; gap:10px; align-content:start; border-top:1px solid var(--color-text); padding-top:18px}
.about-item h3{font-size:21px; letter-spacing:-.02em}
.about-item p{color:var(--color-text-muted); font-size:16px}
@media (max-width:820px){ .about-grid{grid-template-columns:1fr} }

/* verse */
.verse{background:var(--nas-ink); color:#F4F4F5; --color-accent:var(--nas-iris-light)}
@media (prefers-color-scheme:dark){ .verse{background:#141416} }
.verse .container{padding-block:clamp(72px,10vw,128px); display:grid; gap:24px}
.verse blockquote{margin:0; font-size:clamp(28px,4.6vw,54px); font-weight:var(--weight-bold); letter-spacing:-.035em; line-height:1.12; max-width:22ch}
.verse cite{font-style:normal; font-family:var(--font-mono); font-size:14px; letter-spacing:.12em; text-transform:uppercase; color:#9A99A3}
.verse cite::before{content:""; display:inline-block; width:7px; height:7px; border-radius:50%; background:var(--color-accent); margin-right:12px; vertical-align:middle}

/* footer / contact */
.site-footer{padding-block:clamp(56px,8vw,96px) 32px}
.contact{display:flex; justify-content:space-between; align-items:end; gap:32px; flex-wrap:wrap}
.contact h2{font-size:clamp(30px,5vw,56px); letter-spacing:-.04em; max-width:14ch}
.email{font-family:var(--font-mono); font-size:clamp(16px,2vw,19px); display:flex; align-items:center; gap:12px; flex-wrap:wrap; margin-top:18px}
.copy{border:1px solid var(--color-border); background:none; color:inherit; border-radius:var(--radius-pill); padding:5px 12px; font-family:var(--font-mono); font-size:12px; cursor:pointer}
.copy:hover{border-color:var(--color-text)}
.socials{display:flex; gap:10px 22px; flex-wrap:wrap; font-size:15px}
.socials a{text-decoration:underline; text-underline-offset:4px; text-decoration-color:var(--color-border)}
.socials a:hover{color:var(--color-accent); text-decoration-color:currentColor}
.foot-bottom{display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; margin-top:56px; padding-top:22px; border-top:1px solid var(--color-border); font-family:var(--font-mono); font-size:13px; color:var(--color-text-muted)}

/* hover: words change colour under the cursor */
.w{transition:color 700ms var(--ease-arrive)}
.w:hover{color:var(--color-accent); transition-duration:120ms}

/* entrance + scroll reveals (only when JS runs) */
.js .rise{animation:rise var(--dur-scene) var(--ease-arrive) both}
.js .rise.d1{animation-delay:80ms}.js .rise.d2{animation-delay:160ms}.js .rise.d3{animation-delay:240ms}
@keyframes rise{from{opacity:0; transform:translateY(16px)}to{opacity:1; transform:none}}
.js [data-reveal]{opacity:0; transform:translateY(16px); transition:opacity var(--dur-ui) var(--ease-arrive), transform var(--dur-ui) var(--ease-arrive)}
.js [data-reveal].in{opacity:1; transform:none}

/* 404 */
.lost{min-height:70vh; display:grid; align-content:center; gap:22px}
.lost h1{font-size:clamp(40px,7vw,80px); letter-spacing:-.04em}
.btn{display:inline-flex; width:max-content; align-items:center; gap:10px; border-radius:var(--radius-pill); padding:13px 24px; font-weight:var(--weight-medium); font-size:15px; text-decoration:none; background:var(--color-text); color:var(--color-bg)}
.btn:hover{background:var(--color-accent); color:#fff}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important; transition:none!important}
  .js [data-reveal]{opacity:1; transform:none}
}

/* ---------- tutoring page ---------- */
.back{font-family:var(--font-mono); font-size:14px; text-decoration:none; color:var(--color-text-muted)}
.back:hover{color:var(--color-accent)}
.t-hero{padding-block:clamp(24px,5vw,64px) clamp(64px,9vw,112px)}
.t-hero .hero-grid{grid-template-columns:1fr; gap:clamp(36px,5vw,56px)}
.t-hero .photo-wrap{max-width:none; order:2}
.t-hero .photo.landscape{aspect-ratio:16/9}
.t-hero .hero-grid > div:first-child{display:grid; grid-template-columns:minmax(0,1.2fr) minmax(0,1fr); gap:0 clamp(32px,6vw,80px); align-items:end}
.t-hero .hero-grid > div:first-child > .label,.t-hero .hero-grid > div:first-child > h1{grid-column:1/-1}
.t-hero .hero-grid > div:first-child > .intro{margin-top:28px}
.t-hero .stats{margin-top:28px; max-width:none}
@media (max-width:820px){ .t-hero .hero-grid > div:first-child{grid-template-columns:1fr} .t-hero .photo-wrap{order:-1} .t-hero .photo.landscape{aspect-ratio:4/3} }
.t-hero h1{font-size:clamp(42px,6.6vw,84px); letter-spacing:-.045em; line-height:1.02}
.stats{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; margin-top:36px; max-width:520px}
.stats div{border-top:1px solid var(--color-text); padding-top:12px}
.stats b{display:block; font-size:clamp(26px,3vw,34px); letter-spacing:-.03em; line-height:1.1}
.stats span{font-size:14px; color:var(--color-text-muted)}

/* placeholder slots: visible until real content is added */
.slot{border:1.5px dashed var(--color-border); border-radius:6px; color:var(--color-text-muted); display:grid; place-items:center; text-align:center; padding:20px; font-family:var(--font-mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; background:var(--color-surface)}
.todo{color:var(--color-text-muted); font-style:italic}

.subjects{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
.subject{border:1px solid var(--color-border); border-radius:6px; padding:clamp(20px,3vw,28px); display:grid; gap:10px; align-content:start}
.subject h3{font-size:21px; letter-spacing:-.02em}
.subject p{font-size:15px; color:var(--color-text-muted)}
@media (max-width:820px){ .subjects{grid-template-columns:1fr} }

.timeline{display:grid; border-top:1px solid var(--color-text)}
.t-item{display:grid; grid-template-columns:180px minmax(0,1fr); gap:24px; padding-block:24px; border-bottom:1px solid var(--color-border)}
.t-item .when{font-family:var(--font-mono); font-size:14px; color:var(--color-text-muted); padding-top:4px}
.t-item h3{font-size:clamp(19px,2.2vw,24px); letter-spacing:-.02em}
.t-item p{color:var(--color-text-muted); font-size:15px; margin-top:6px}
@media (max-width:620px){ .t-item{grid-template-columns:1fr; gap:6px} }

.gallery{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px}
.gallery > *{aspect-ratio:4/3; border-radius:6px; overflow:hidden}
.gallery > .tall{grid-row:span 2; aspect-ratio:auto}
.gallery img{width:100%; height:100%; object-fit:cover; filter:grayscale(1); transition:filter 900ms var(--ease-nas)}
.gallery img:hover{filter:grayscale(0)}
@media (max-width:620px){ .gallery{grid-template-columns:1fr 1fr} .gallery > .tall{grid-row:auto; aspect-ratio:4/3} }

.steps{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:clamp(20px,3vw,40px); counter-reset:step}
.step{border-top:1px solid var(--color-text); padding-top:16px; display:grid; gap:8px; align-content:start}
.step .label{color:var(--color-accent)}
.step h3{font-size:20px; letter-spacing:-.02em}
.step p{font-size:15px; color:var(--color-text-muted)}
@media (max-width:820px){ .steps{grid-template-columns:1fr} }

.quotes{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px}
.quote{border-radius:6px; background:var(--color-surface); border:1px solid var(--color-border); padding:clamp(22px,3vw,32px); display:grid; gap:16px; align-content:space-between}
.quote p{font-size:clamp(18px,2vw,21px); line-height:1.45; letter-spacing:-.01em}
.quote .who{font-family:var(--font-mono); font-size:13px; color:var(--color-text-muted)}
@media (max-width:760px){ .quotes{grid-template-columns:1fr} }

.book{display:flex; justify-content:space-between; align-items:end; gap:28px; flex-wrap:wrap}
.book h2{font-size:clamp(32px,5vw,60px); letter-spacing:-.04em; max-width:15ch}
.book .btn{background:#F4F4F5; color:var(--nas-ink)}
.book .btn:hover{background:var(--color-accent); color:#fff}

/* ---------- homepage photo rotation ---------- */
.rotator{cursor:pointer}
.rotator img{position:absolute; inset:0; opacity:0; transform:scale(1.04); transition:opacity 700ms var(--ease-nas), transform 1400ms var(--ease-arrive), filter 900ms var(--ease-nas)}
.rotator img.show{opacity:1; transform:none}
.rot-dots{display:flex; gap:6px; margin-top:14px}
.rot-dots i{flex:1; height:2px; border-radius:2px; background:var(--color-border); transition:background var(--dur-ui) var(--ease-arrive)}
.rot-dots i.on{background:var(--color-accent)}

/* ---------- photo galleries (masonry + filters) ---------- */
.g-filters{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:24px}
.masonry{columns:3 280px; column-gap:14px}
.masonry a{display:block; break-inside:avoid; margin-bottom:14px; border-radius:6px; overflow:hidden; position:relative; background:var(--color-surface)}
.masonry a[hidden]{display:none}
.masonry img{width:100%; height:auto; filter:grayscale(1); transition:filter 900ms var(--ease-nas), transform 900ms var(--ease-arrive)}
.masonry a:hover img,.masonry a:focus-visible img{filter:grayscale(0); transform:scale(1.03)}
.masonry .cap{position:absolute; left:10px; bottom:10px; font-family:var(--font-mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:#fff; background:rgba(10,10,11,.55); padding:4px 8px; border-radius:3px; opacity:0; transition:opacity var(--dur-micro)}
.masonry a:hover .cap{opacity:1}
.g-count{font-family:var(--font-mono); font-size:13px; color:var(--color-text-muted)}

/* ---------- lightbox ---------- */
.lb{position:fixed; inset:0; z-index:200; background:rgba(10,10,11,.94); display:grid; grid-template-rows:auto 1fr auto; opacity:0; visibility:hidden; transition:opacity var(--dur-ui) var(--ease-arrive), visibility 0s linear var(--dur-ui); color:#fff}
.lb.open{opacity:1; visibility:visible; transition-delay:0s}
.lb-top{display:flex; justify-content:space-between; align-items:center; padding:16px 20px; font-family:var(--font-mono); font-size:13px; color:#9A99A3}
.lb-stage{display:grid; place-items:center; padding:0 clamp(12px,6vw,90px); min-height:0}
.lb-stage img{max-width:100%; max-height:calc(100vh - 150px); border-radius:4px; object-fit:contain; animation:lbIn 500ms var(--ease-arrive)}
@keyframes lbIn{from{opacity:0; transform:scale(.97)}to{opacity:1; transform:none}}
.lb-bar{display:flex; justify-content:center; gap:10px; padding:16px}
.lb button{background:none; border:1px solid #3a3a40; color:#fff; border-radius:999px; padding:9px 18px; font-family:var(--font-sans); font-size:14px; cursor:pointer}
.lb button:hover{border-color:var(--nas-iris-light); color:var(--nas-iris-light)}
.lb-cap{font-family:var(--font-mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:#9A99A3; align-self:center}

/* ---------- about page ---------- */
.a-hero{padding-block:clamp(24px,5vw,64px) clamp(56px,8vw,96px)}
.a-hero .hero-grid{align-items:start}
.a-hero h1{font-size:clamp(42px,6.6vw,84px); letter-spacing:-.045em; line-height:1.02}
.a-hero .intro{font-size:clamp(18px,1.8vw,21px); color:var(--color-text-muted); margin-top:28px; max-width:46ch}
.a-hero .label{display:block; margin-bottom:20px}
.facts{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:0 24px; margin-top:36px; border-top:1px solid var(--color-text); max-width:560px}
.facts div{padding-block:14px; border-bottom:1px solid var(--color-border)}
.facts dt{font-family:var(--font-mono); font-size:12px; letter-spacing:.12em; text-transform:uppercase; color:var(--color-text-muted)}
.facts dd{margin:4px 0 0; font-size:18px; font-weight:var(--weight-medium); letter-spacing:-.01em}
@media (max-width:520px){ .facts{grid-template-columns:1fr} }
.strip{display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:10px}
.strip img{width:100%; height:auto; aspect-ratio:3/4; object-fit:cover; border-radius:6px; filter:grayscale(1); transition:filter 900ms var(--ease-nas)}
.strip img:hover{filter:grayscale(0)}
@media (max-width:760px){ .strip{grid-template-columns:repeat(3,minmax(0,1fr))} .strip img:nth-child(n+4){display:none} }
.story{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.6fr); gap:clamp(24px,5vw,80px)}
.story .prose{display:grid; gap:18px; font-size:18px; max-width:60ch}
.story .prose p{color:var(--color-text-muted)}
.story .prose strong{color:var(--color-text); font-weight:var(--weight-medium)}
@media (max-width:820px){ .story{grid-template-columns:1fr} }
.milestones{display:grid; border-top:1px solid var(--color-text)}
.milestones div{display:grid; grid-template-columns:110px minmax(0,1fr); gap:20px; padding-block:18px; border-bottom:1px solid var(--color-border); align-items:baseline}
.milestones b{font-family:var(--font-mono); font-weight:400; font-size:14px; color:var(--color-accent)}
.milestones span{font-size:18px; font-weight:var(--weight-medium); letter-spacing:-.01em}
.likes{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:16px}
.like{border:1px solid var(--color-border); border-radius:6px; padding:clamp(20px,2.4vw,26px); display:grid; gap:10px; align-content:start; transition:border-color var(--dur-micro), transform var(--dur-ui) var(--ease-arrive)}
.like:hover{border-color:var(--color-accent); transform:translateY(-3px)}
.like .label{color:var(--color-accent)}
.like h3{font-size:21px; letter-spacing:-.02em}
.like p{font-size:15px; color:var(--color-text-muted)}
@media (max-width:900px){ .likes{grid-template-columns:1fr 1fr} }
@media (max-width:520px){ .likes{grid-template-columns:1fr} }
.duo{display:grid; grid-template-columns:1.2fr 1fr 1fr; gap:14px}
.duo a{border-radius:6px; overflow:hidden; display:block}
.duo img{width:100%; height:100%; object-fit:cover; aspect-ratio:3/4; filter:grayscale(1); transition:filter 900ms var(--ease-nas)}
.duo a:hover img{filter:grayscale(0)}
@media (max-width:700px){ .duo{grid-template-columns:1fr 1fr} .duo a:first-child{grid-column:1/-1} .duo a:first-child img{aspect-ratio:4/5} }
.wife-more{display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:14px; margin-top:14px}
.wife-more a{border-radius:6px; overflow:hidden; display:block}
.wife-more img{width:100%; height:auto; aspect-ratio:1; object-fit:cover; filter:grayscale(1); transition:filter 900ms var(--ease-nas)}
.wife-more a:hover img{filter:grayscale(0)}
@media (max-width:700px){ .wife-more{grid-template-columns:repeat(3,minmax(0,1fr))} }

/* ---------- YouTube channel band (tutoring page) ---------- */
.yt{background:var(--nas-ink); color:#F4F4F5; --color-accent:var(--nas-iris-light); --color-text:#F4F4F5; --color-text-muted:#9A99A3; --color-border:#2A2A30}
@media (prefers-color-scheme:dark){ .yt{background:#141416} }
.yt .container{padding-block:clamp(72px,10vw,120px); display:grid; grid-template-columns:minmax(0,.9fr) minmax(0,1.3fr); gap:clamp(32px,6vw,80px); align-items:center}
.yt-chan{display:flex; align-items:center; gap:14px; margin-bottom:26px}
.yt-chan img{width:56px; height:56px; border-radius:50%; background:#222}
.yt-chan b{display:block; font-size:18px; letter-spacing:-.01em}
.yt-chan span{font-family:var(--font-mono); font-size:13px; color:#9A99A3}
.yt h2{font-size:clamp(30px,4.4vw,50px); letter-spacing:-.04em}
.yt .lead{color:#B9B8C1; font-size:clamp(17px,1.6vw,19px); margin-top:20px; max-width:46ch}
.yt-stats{display:flex; gap:32px; margin-top:28px; flex-wrap:wrap}
.yt-stats b{display:block; font-size:clamp(26px,3vw,34px); letter-spacing:-.03em; line-height:1.1}
.yt-stats span{font-size:14px; color:#9A99A3}
.yt-cta{margin-top:32px; display:flex; gap:12px; flex-wrap:wrap}
.yt-cta .btn{background:#F4F4F5; color:var(--nas-ink)}
.yt-cta .btn:hover{background:var(--nas-iris-light); color:var(--nas-ink)}
.yt-cta .ghost-btn{display:inline-flex; align-items:center; border:1px solid #3a3a40; border-radius:var(--radius-pill); padding:13px 22px; font-size:15px; font-weight:var(--weight-medium); text-decoration:none; color:#F4F4F5}
.yt-cta .ghost-btn:hover{border-color:var(--nas-iris-light); color:var(--nas-iris-light)}
.yt-vids{display:grid; grid-template-columns:1fr 1fr; gap:14px}
.yt-vid{text-decoration:none; display:grid; gap:10px; align-content:start}
.yt-vid:first-child{grid-column:1/-1}
.yt-thumb{position:relative; aspect-ratio:16/9; border-radius:6px; overflow:hidden; background:#1C1C1F}
.yt-thumb img{width:100%; height:100%; object-fit:cover; transition:transform 900ms var(--ease-arrive)}
.yt-vid:hover .yt-thumb img{transform:scale(1.04)}
.yt-thumb .dur{position:absolute; right:10px; bottom:10px; font-family:var(--font-mono); font-size:12px; background:rgba(10,10,11,.8); padding:3px 7px; border-radius:3px}
.yt-thumb .pl{position:absolute; left:50%; top:50%; width:58px; height:58px; margin:-29px 0 0 -29px; border-radius:50%; background:rgba(10,10,11,.55); backdrop-filter:blur(6px); display:grid; place-items:center; transition:background var(--dur-micro), transform var(--dur-ui) var(--ease-arrive)}
.yt-thumb .pl::before{content:""; margin-left:4px; border-left:15px solid #fff; border-top:9px solid transparent; border-bottom:9px solid transparent}
.yt-vid:hover .pl{background:var(--nas-iris); transform:scale(1.08)}
.yt-vid h3{font-size:16px; font-weight:var(--weight-medium); letter-spacing:-.01em; line-height:1.35; color:#F4F4F5}
.yt-vid:first-child h3{font-size:19px}
@media (max-width:900px){ .yt .container{grid-template-columns:1fr} }
@media (max-width:520px){ .yt-vids{grid-template-columns:1fr} }
.t-item .when{display:grid; gap:6px; align-content:start}
.t-item .lvl{display:inline-block; width:max-content; font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--color-accent); border:1px solid var(--color-accent); border-radius:var(--radius-pill); padding:2px 10px}
.tags{display:flex; flex-wrap:wrap; gap:6px; margin-top:14px}
.tags span{font-size:13px; border:1px solid var(--color-border); border-radius:var(--radius-pill); padding:4px 12px; color:var(--color-text)}

/* ---------- Instagram social proof (tutoring page) ---------- */
.ig{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.1fr); gap:clamp(20px,4vw,48px); align-items:center}
.ig-card{border:1px solid var(--color-border); border-radius:6px; padding:clamp(24px,3.4vw,40px); display:grid; gap:22px; background:var(--color-surface)}
.ig-head{display:flex; gap:14px; align-items:center}
.ig-mark{width:52px; height:52px; border-radius:14px; display:grid; place-items:center; color:#fff; background:linear-gradient(135deg,var(--nas-iris),#8C75F2); flex:none}
.ig-mark svg{width:26px; height:26px}
.ig-head b{display:block; font-size:19px; letter-spacing:-.01em}
.ig-head div span{font-family:var(--font-mono); font-size:13px; color:var(--color-text-muted)}
.ig-text{font-size:17px; color:var(--color-text-muted); max-width:44ch}
.ig-text strong{color:var(--color-text); font-weight:var(--weight-medium)}
.ig-stats{display:flex; gap:28px; flex-wrap:wrap; border-top:1px solid var(--color-border); padding-top:20px}
.ig-stats b{display:block; font-size:clamp(24px,2.6vw,30px); letter-spacing:-.03em; line-height:1.1}
.ig-stats span{font-size:14px; color:var(--color-text-muted)}
.ig-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:6px}
.ig-grid a{display:block; aspect-ratio:1; overflow:hidden; border-radius:4px; position:relative}
.ig-grid img{width:100%; height:100%; object-fit:cover; filter:grayscale(1); transition:filter 900ms var(--ease-nas), transform 900ms var(--ease-arrive)}
.ig-grid a:hover img{filter:grayscale(0); transform:scale(1.05)}
@media (max-width:860px){ .ig{grid-template-columns:1fr} }

/* ---------- student testimonials ---------- */
.tq-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
.tq-grid .tq:first-child{grid-column:1/-1; padding:clamp(28px,4vw,48px)}
.tq-grid .tq:first-child blockquote{font-size:clamp(20px,2.4vw,28px); line-height:1.4; letter-spacing:-.015em; max-width:52ch}
@media (max-width:900px){ .tq-grid{grid-template-columns:1fr 1fr} }
@media (max-width:600px){ .tq-grid{grid-template-columns:1fr} }
.tq{margin:0; border:1px solid var(--color-border); border-radius:6px; padding:clamp(20px,2.6vw,28px); display:grid; grid-template-rows:1fr auto; gap:20px; background:var(--color-bg); transition:border-color var(--dur-micro)}
.tq:hover{border-color:var(--color-accent)}
.tq blockquote{margin:0; font-size:16px; line-height:1.6; color:var(--color-text)}
.tq figcaption{display:flex; align-items:center; gap:12px}
.tq figcaption img{width:48px; height:48px; border-radius:50%; object-fit:cover; filter:grayscale(1); flex:none; transition:filter 900ms var(--ease-nas)}
.tq:hover figcaption img{filter:grayscale(0)}
.tq figcaption b{display:block; font-size:15px; letter-spacing:-.01em}
.tq figcaption i{font-style:normal; font-family:var(--font-mono); font-size:12px; color:var(--color-text-muted)}
.book-note{color:#B9B8C1; font-size:17px; max-width:48ch; margin-top:16px}
.book-ctas{display:flex; flex-wrap:wrap; gap:12px; align-items:center}
.book .ghost-btn{display:inline-flex; align-items:center; border:1px solid #3a3a40; border-radius:var(--radius-pill); padding:13px 22px; font-size:15px; font-weight:var(--weight-medium); text-decoration:none; color:#F4F4F5}
.book .ghost-btn:hover{border-color:var(--nas-iris-light); color:var(--nas-iris-light)}

/* ---------- phone menu ---------- */
.menu-btn{display:none; background:none; border:0; padding:10px; margin-right:-10px; cursor:pointer; color:var(--color-text); position:relative; z-index:61}
.menu-btn span{display:block; width:24px; height:1.5px; background:currentColor; transition:transform var(--dur-micro) var(--ease-nas)}
.menu-btn span + span{margin-top:7px}
.menu-open .menu-btn span:first-child{transform:translateY(4.25px) rotate(45deg)}
.menu-open .menu-btn span:last-child{transform:translateY(-4.25px) rotate(-45deg)}
@media (max-width:640px){
  .menu-btn{display:block}
  .site-header .logo{position:relative; z-index:61}
  .site-header nav{position:fixed; inset:0; z-index:60; background:var(--color-bg); flex-direction:column; align-items:flex-start; justify-content:center; gap:14px; padding:96px clamp(16px,5vw,48px) 48px; opacity:0; visibility:hidden; transform:translateY(-8px); transition:opacity var(--dur-ui) var(--ease-arrive), transform var(--dur-ui) var(--ease-arrive), visibility 0s linear var(--dur-ui)}
  .menu-open .site-header nav{opacity:1; visibility:visible; transform:none; transition-delay:0s}
  .site-header nav a,.site-header nav .hide-sm{display:block; font-size:34px; font-weight:var(--weight-bold); letter-spacing:-.03em}
  .site-header nav a::after{left:auto; right:-16px; bottom:auto; top:50%; margin:-2.5px 0 0}
  .menu-open{overflow:hidden}
}
.btn-line{display:inline-flex; align-items:center; border:1px solid var(--color-border); border-radius:var(--radius-pill); padding:13px 22px; font-size:15px; font-weight:var(--weight-medium); text-decoration:none}
.btn-line:hover{border-color:var(--color-text)}