/* Quanta site. Fonts are bundled (SIL Open Font License, see fonts/). */
@font-face{font-family:Figtree;src:url(fonts/figtree-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:Figtree;src:url(fonts/figtree-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:Figtree;src:url(fonts/figtree-latin-700-normal.woff2) format("woff2");font-weight:700 800;font-display:swap}
@font-face{font-family:"Source Serif 4";src:url(fonts/source-serif-4-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}

:root{
  --navy:#18203A;--navy-2:#222B4A;--line-dark:#3A4570;
  --ground:#F4F5FA;--surface:#FFFFFF;--ink:#18203A;--muted:#4A5373;--line:#E1E4EF;
  --gold:#F2B84B;--gold-ink:#3A2E14;--blue:#2F64C8;--sky:#7FA4F0;
  --rose:#B23A5E;--green:#2E8B57;
  --sans:Figtree,system-ui,-apple-system,"Segoe UI",sans-serif;--serif:"Source Serif 4",Georgia,serif;
  --max:1120px;--r:20px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:18px;line-height:1.55}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-underline-offset:3px}
a:hover{color:var(--navy)}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--gold);color:var(--navy);padding:8px 14px;border-radius:10px;font-weight:700}
.skip:focus{left:16px;z-index:10}

/* header */
.top{background:var(--navy);color:#fff}
.nav{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:76px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700;font-size:26px;letter-spacing:-.02em}
.brand:hover{color:#fff}
.brand svg{width:44px;height:36px}
.nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.nav ul a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border-radius:999px;color:#C5CBE0;text-decoration:none;font-weight:600;font-size:16px}
.nav ul a:hover,.nav ul a[aria-current]{color:#fff;background:var(--navy-2)}

/* hero */
.hero{position:relative;overflow:hidden;padding:56px 0 0}
.hero .ghost{position:absolute;right:-180px;top:-40px;width:720px;height:auto;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:end;padding-top:24px}
.hero h1{margin:0 0 20px;font-size:clamp(52px,8vw,96px);line-height:.98;letter-spacing:-.035em;font-weight:800}
.hero h1 .dot{color:var(--gold)}
.lede{margin:0 0 28px;font-size:clamp(19px,2.2vw,23px);color:#C5CBE0;max-width:34ch}
.pills{display:flex;gap:10px;flex-wrap:wrap;padding-bottom:64px}
.pill{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:999px;font-weight:700;font-size:16px}
.pill.gold{background:var(--gold);color:var(--navy)}
.pill.ghostline{border:1.5px solid var(--line-dark);color:#C5CBE0;font-weight:600}
.hero-phones{display:flex;justify-content:center;gap:18px;align-self:end}
.phone{width:min(290px,48%);border-radius:40px 40px 0 0;border:10px solid #0E1426;border-bottom:0;overflow:hidden;background:#0E1426;box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.phone img{width:100%;height:auto;aspect-ratio:390/700;object-fit:cover;object-position:top}
.phone.tilt{transform:translateY(40px)}

/* sections */
section{padding:88px 0}
.eyebrow{margin:0 0 10px;font-size:14px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
h2{margin:0 0 16px;font-size:clamp(34px,4.6vw,52px);line-height:1.05;letter-spacing:-.03em;font-weight:800}
h2 .gold{color:#B7791F}
.intro{max-width:56ch;color:var(--muted);margin:0 0 40px;font-size:20px}

.packets{display:flex;gap:10px;margin:0 0 48px;flex-wrap:wrap}
.packets span{width:34px;height:34px;border-radius:9px;background:var(--navy)}
.packets span.off{background:transparent;border:3px solid var(--navy);opacity:.3}

.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.card h3{margin:14px 0 8px;font-size:21px;letter-spacing:-.01em}
.card p{margin:0;color:var(--muted);font-size:17px}
.icon{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:#E8EEFB;color:var(--blue)}
.icon.gold{background:#FFF4DE;color:#B7791F}
.icon.rose{background:#F8E6EC;color:var(--rose)}
.icon.green{background:#E3F2EA;color:var(--green)}

/* showcase */
.show{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.show-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.show-row+.show-row{margin-top:88px}
.show-row.flip .show-text{order:2}
.shot{justify-self:center;width:min(320px,100%);border-radius:44px;border:10px solid var(--navy);overflow:hidden;box-shadow:0 30px 60px -36px rgba(24,32,58,.55)}
.shot img{width:100%;height:auto;aspect-ratio:390/844}
.show-text h3{margin:0 0 12px;font-size:clamp(28px,3.4vw,38px);line-height:1.1;letter-spacing:-.025em}
.show-text p{color:var(--muted);margin:0 0 14px}
.ticks{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}
.ticks li{display:flex;gap:10px;align-items:flex-start}
.ticks svg{flex:none;margin-top:4px;color:var(--green)}

/* subjects */
.subjects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.subj{border-radius:var(--r);padding:22px;background:var(--surface);border:1px solid var(--line);display:flex;flex-direction:column;gap:8px;min-height:150px}
.subj .badge{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px}
.subj h3{margin:6px 0 0;font-size:20px}
.subj p{margin:0;color:var(--muted);font-size:16px}
.subj .status{margin-top:auto;font-size:14px;font-weight:700}
.subj.soon{background:transparent;border-style:dashed}
.st-live{color:var(--green)}.st-build{color:#B7791F}.st-soon{color:var(--muted)}
.count{margin:32px 0 0;font-size:17px;color:var(--muted)}
.count strong{color:var(--ink)}

/* definition band */
.define{background:var(--gold);color:var(--navy)}
.define .wrap{display:grid;grid-template-columns:auto minmax(0,1fr);gap:40px;align-items:center}
.define svg{width:150px;height:122px}
.define .word{margin:0;font-size:15px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-ink)}
.define blockquote{margin:10px 0 0;font-family:var(--serif);font-weight:600;font-size:clamp(26px,3.4vw,38px);line-height:1.25;letter-spacing:-.01em}

/* footer */
footer{background:var(--navy);color:#C5CBE0;padding:48px 0;font-size:15px}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start}
footer a{color:#fff}
footer a:hover{color:var(--gold)}
footer ul{list-style:none;margin:0;padding:0;display:flex;gap:18px;flex-wrap:wrap}
footer ul a{display:inline-flex;min-height:44px;align-items:center}
.legal{max-width:62ch;margin:20px 0 0;color:#9AA3C2;font-size:14px}

/* plain pages (privacy, support) */
.page{padding:56px 0 80px}
.page .wrap{max-width:760px}
.page h1{margin:0 0 6px;font-size:clamp(38px,5vw,54px);letter-spacing:-.03em;line-height:1.05}
.page .date{color:var(--muted);margin:0 0 32px}
.page h2{font-size:26px;margin:40px 0 10px;letter-spacing:-.015em}
.page p,.page li{color:#2B334F}
.page .box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;margin:24px 0}
.btn{display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:0 22px;border-radius:999px;background:var(--navy);color:#fff;text-decoration:none;font-weight:700}
.btn:hover{background:var(--blue);color:#fff}
details{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:0 20px;margin:12px 0}
summary{cursor:pointer;min-height:56px;display:flex;align-items:center;font-weight:700;font-size:18px}
details p{margin:0 0 18px}

/* responsive */
@media (max-width:900px){
  .hero-grid,.show-row{grid-template-columns:minmax(0,1fr)}
  .show-row.flip .show-text{order:0}
  .hero .ghost{width:520px;right:-220px;top:-20px;opacity:.7}
  .features,.subjects{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pills{padding-bottom:12px}
}
@media (max-width:600px){
  body{font-size:17px}
  .wrap{padding:0 16px}
  section{padding:64px 0}
  .features,.subjects{grid-template-columns:minmax(0,1fr)}
  .hero-phones .phone.tilt{display:none}
  .phone{width:min(250px,72%)}
  .phone img{aspect-ratio:390/560}
  .define .wrap{grid-template-columns:minmax(0,1fr)}
  .define svg{width:96px;height:78px}
  .nav ul a{padding:0 10px;font-size:15px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* inner page header */
.pagehead{padding:36px 0 56px}
.pagehead h1{margin:0 0 12px;font-size:clamp(40px,6vw,64px);line-height:1;letter-spacing:-.03em;font-weight:800;color:#fff}
.pagehead .lede{margin:0}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.more{margin:28px 0 0;font-weight:700}
.more a{text-decoration:none}
.band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.two .intro{margin-bottom:0}
.stats{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.stats li{display:flex;align-items:baseline;gap:14px;background:var(--ground);border:1px solid var(--line);border-radius:var(--r);padding:18px 22px}
.stats strong{font-size:36px;letter-spacing:-.03em;min-width:3.2ch}
.stats span{color:var(--muted)}
.narrow{max-width:760px}
.narrow p{color:var(--muted)}
@media (max-width:860px){.two{grid-template-columns:1fr;gap:36px}}

/* subject banners and example slides */
.sband{padding:0 0 56px}
.sband:first-of-type{padding-top:8px}
.sbanner{background:linear-gradient(120deg,var(--sc),color-mix(in srgb,var(--sc) 70%,#18203A));color:#fff;margin-bottom:28px}
.sbanner .wrap{display:flex;gap:18px;align-items:center;padding-top:26px;padding-bottom:26px}
.sbanner .badge{flex:none;width:56px;height:56px;border-radius:16px;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px}
.sbanner h2{margin:0;color:#fff;font-size:clamp(28px,4vw,40px)}
.sbanner p{margin:4px 0 0;color:rgba(255,255,255,.88);max-width:70ch;font-size:17px}
.slides{list-style:none;margin:0;padding:0 0 8px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.slides figure{margin:0}
.slides .frame{border-radius:28px;border:7px solid var(--navy);overflow:hidden;background:var(--navy);box-shadow:0 20px 40px -28px rgba(24,32,58,.55)}
.slides img{width:100%;aspect-ratio:390/700;object-fit:cover;object-position:top}
.slides figcaption{margin-top:12px;font-size:15px;font-weight:600;color:var(--muted);text-align:center}
.subj h3 a{color:inherit;text-decoration:none}
.subj h3 a:hover{text-decoration:underline}
@media (max-width:860px){
  .slides{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;padding-bottom:12px}
  .slides li{flex:0 0 min(62vw,240px);scroll-snap-align:start}
}