/* f1v3group.com: the logo system's look. Paper, ink, one ember. STIX Two Text. */
@font-face{font-family:"STIX Two Text";src:url(../fonts/stix-two-text.woff2) format("woff2");font-weight:400 700;font-style:normal;font-display:swap}
@font-face{font-family:"STIX Two Text";src:url(../fonts/stix-two-text-italic.woff2) format("woff2");font-weight:400 700;font-style:italic;font-display:swap}

:root{
  --paper:#F4F1EC; --ink:#0E0E10; --ember:#FF4500;
  --muted:#6B665F; --guide:#B8B2A8; --tile:#E6E1D9; --card:#FBF9F6;
  --serif:"STIX Two Text",Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Helvetica,Arial,sans-serif;
  --mark-light:block; --mark-dark:none;
}
@media (prefers-color-scheme:dark){
  :root{--paper:#0E0E10; --ink:#F4F1EC; --muted:#A39E96; --guide:#4A4642; --tile:#1C1B1A; --card:#161515; --mark-light:none; --mark-dark:block}
}
*{box-sizing:border-box}
html{background:var(--paper);color:var(--ink);-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.5}
.light{display:var(--mark-light)} .dark{display:var(--mark-dark)}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
.wrap{max-width:1040px;margin:0 auto;padding:0 28px}

/* labels in the sheet's style: small, spaced, grey */
.label{font-family:var(--sans);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 18px;font-weight:600}
.serif{font-family:var(--serif)}

/* top bar */
.top{display:flex;align-items:center;justify-content:space-between;height:72px}
.top img{height:26px;width:auto}
.top nav{display:flex;gap:28px}
.top nav a{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);text-decoration:none;font-weight:600}
.top nav a:hover{color:var(--ink)}

/* hero: the lockup in its clear-space band, drawn like the construction sheet */
.hero{padding:56px 0 24px}
.band{position:relative;margin:0 auto}
.hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(30px,4.6vw,52px);line-height:1.12;letter-spacing:-.01em;margin:48px 0 18px;max-width:18ch}
.hero h1 em{font-style:italic}
.hero p{font-size:19px;color:var(--muted);max-width:52ch;margin:0}
.hero p b{color:var(--ink);font-weight:600}

/* dimension-style section rule */
section{padding:64px 0 0}
.rule{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;margin-bottom:28px}
.rule::before,.rule::after{content:"";height:1px;background:var(--guide);flex:1;position:relative}
.rule::before{flex:0 0 28px}
.rule span{white-space:nowrap}

/* the apps: nine tiles on the mark's grid */
.apps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.app{display:flex;flex-direction:column;gap:8px;min-height:210px;padding:22px 24px;border-radius:18px;background:var(--card);border:1px solid var(--tile);text-decoration:none;position:relative;transition:transform .18s ease,border-color .18s ease}
.app:hover{transform:translateY(-2px);border-color:var(--guide)}
.app h3{font-family:var(--serif);font-weight:600;font-size:26px;line-height:1.15;margin:0;letter-spacing:-.005em}
.app .status{font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--muted);margin:0}
.app p{margin:0;font-size:15px;line-height:1.45;color:var(--muted);flex:1}
.app .site{font-size:13px;color:var(--muted);text-decoration:none;margin-top:auto}
.app .site::after{content:"→";margin-left:.3em}
/* shipped: solid tile; newest shipped: the ember tile; coming: hollow */
.app.shipped{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.app.shipped .status,.app.shipped p,.app.shipped .site{color:var(--paper);opacity:.72}
.app.newest{background:var(--ember);color:#0E0E10;border-color:var(--ember)}
.app.newest .status,.app.newest p,.app.newest .site{color:#0E0E10;opacity:.78}
.app.hollow{background:transparent;border:1.5px solid var(--guide)}
.legend{display:flex;gap:22px;flex-wrap:wrap;margin-top:18px;font-size:13px;color:var(--muted)}
.legend i{display:inline-block;width:13px;height:13px;border-radius:4px;vertical-align:-2px;margin-right:7px;background:var(--ink)}
.legend i.e{background:var(--ember)} .legend i.h{background:transparent;border:1.5px solid var(--guide)}

/* how we work */
.how{display:grid;grid-template-columns:repeat(3,1fr);gap:40px 28px}
.how div{position:relative;padding-top:18px}
.how div::before{content:attr(data-n);position:absolute;top:-6px;left:0;font-size:12px;letter-spacing:.14em;color:var(--muted);font-weight:600}
.how h3{font-family:var(--serif);font-weight:600;font-size:24px;margin:8px 0 8px}
.how p{margin:0;color:var(--muted);font-size:15.5px}

/* contact */
.contact{padding:72px 0 40px;text-align:left}
.contact h2{font-family:var(--serif);font-weight:400;font-size:clamp(28px,4vw,44px);margin:0 0 14px;letter-spacing:-.01em}
.contact a{font-family:var(--serif);font-size:clamp(22px,3vw,30px);color:var(--ink);text-decoration:none;border-bottom:2px solid var(--ember);padding-bottom:2px}
.contact a:hover{color:var(--ember)}
.contact p{color:var(--muted);margin:14px 0 0}

/* footer */
footer{border-top:1px dashed var(--guide);margin-top:48px;padding:28px 0 40px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
footer img{height:28px;width:auto}
footer ul{list-style:none;margin:0;padding:0;display:flex;gap:16px;flex-wrap:wrap}
footer a{text-decoration:none;color:var(--muted)} footer a:hover{color:var(--ink)}

@media (max-width:760px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .top{height:62px} .top img{height:22px} .top nav{gap:18px} .top nav a{font-size:11px}
  .hero{padding:28px 0 16px} 
  .hero h1{margin-top:34px}
  .apps{grid-template-columns:1fr 1fr;gap:10px} .app{min-height:0;padding:18px;border-radius:14px} .app h3{font-size:21px}
  .how{grid-template-columns:1fr;gap:26px}
  section{padding-top:48px}
}
@media (max-width:460px){.apps{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){.app{transition:none}}