/* Uncommon Plane — uncommonplane.com v1 (built 2026-07-28)
   Brand values from marketing/BRAND.md (locked). Do not drift. */

@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;
  src:url(fonts/IBMPlexMono-500-latin.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:400;font-display:swap;
  src:url(fonts/IBMPlexSans-400-latin.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:600;font-display:swap;
  src:url(fonts/IBMPlexSans-600-latin.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:700;font-display:swap;
  src:url(fonts/IBMPlexSans-700-latin.woff2) format('woff2')}
/* Cinzel Medium — display layer only (headlines + wordmark). All-caps face, never body text.
   Staged 7/29 on Michael's font call; BRAND.md not yet amended. */
@font-face{font-family:'Cinzel';font-style:normal;font-weight:500;font-display:swap;
  src:url(fonts/Cinzel-500-latin.woff2) format('woff2')}

:root{
  --navy:#122A47; --accent:#1B62B5; --steel:#8FB3DD; --ink:#26241F;
  --muted:#8B8577; --hairline:#E3E0D8; --paper:#FBFAF7;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'IBM Plex Sans',sans-serif;background:var(--paper);color:var(--ink);
  line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%}
.wrap{max-width:1040px;margin:0 auto;padding:0 28px;position:relative}
.narrow{max-width:720px}
.eyebrow{font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:11px;
  letter-spacing:2px;text-transform:uppercase;color:var(--accent)}

/* ---------- faint etch ground (Michael's 7/29 call: the up-etch-v2 home ground —
   the full construction, huge and centered, carried over from the intro's zoom-through) ---------- */
.etch-bg{position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.07;
  background:url(etch-ground.svg) no-repeat center;background-size:132vmax 132vmax;
  -webkit-mask-image:radial-gradient(120% 95% at 50% 42%,#000 55%,transparent 100%);
  mask-image:radial-gradient(120% 95% at 50% 42%,#000 55%,transparent 100%)}
nav,header,section,footer{position:relative;z-index:1}

/* ---------- nav ---------- */
nav{border-bottom:1px solid var(--hairline);background:rgba(251,250,247,.94);
  backdrop-filter:blur(6px);position:sticky;top:0;z-index:20}
.navrow{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:16px;padding-bottom:16px}
.brand{display:flex;align-items:center;gap:12px;color:var(--navy) !important}
.brand:hover{text-decoration:none}
.brand img{width:52px;height:52px;flex:none}
.wordmark{font-family:'Cinzel',Georgia,serif;font-weight:500;font-size:22px;color:var(--navy);
  letter-spacing:1px;line-height:1.15}
.wordmark small{display:block;font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:10px;
  letter-spacing:2px;text-transform:uppercase;color:var(--muted);margin-top:3px}
.navlinks{display:flex;gap:24px;align-items:center;font-size:14px;flex-wrap:wrap}
.navlinks a{color:var(--ink)}
.navlinks a.here{color:var(--accent);font-weight:600}
.btn{display:inline-block;background:var(--navy);color:#fff !important;padding:11px 20px;
  border-radius:6px;font-weight:600;font-size:14px;border:1.5px solid var(--navy)}
.btn:hover{background:var(--accent);border-color:var(--accent);text-decoration:none}
.btn.ghost{background:transparent;color:var(--navy) !important}
.btn.ghost:hover{background:var(--navy);color:#fff !important}
.navlinks .btn{padding:9px 16px}

/* ---------- hero ---------- */
header{padding:84px 0 72px}
h1{font-family:'Cinzel',Georgia,serif;font-size:44px;line-height:1.2;color:var(--navy);
  font-weight:500;letter-spacing:.5px;margin:0 0 22px;max-width:22ch}
.sub{font-size:19px;max-width:52ch;color:var(--ink)}
.heroctas{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.heronote{margin-top:14px;font-size:13px;color:var(--muted);max-width:48ch}

/* ---------- sections ---------- */
section{padding:64px 0}
h2{font-family:'Cinzel',Georgia,serif;font-size:25px;color:var(--navy);font-weight:500;
  margin:12px 0 14px;letter-spacing:.4px}
.lede{max-width:60ch;font-size:16px}
section p{max-width:62ch}
section p+p{margin-top:14px}

/* engine steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;
  margin-top:30px;counter-reset:step}
.step{border-top:3px solid var(--accent);padding-top:16px}
.step::before{counter-increment:step;content:"0" counter(step);font-family:'IBM Plex Mono',monospace;
  color:var(--accent);opacity:.55;font-size:12px;letter-spacing:2px}
.step h3{color:var(--navy);font-size:16.5px;margin:6px 0 6px;font-weight:600}
.step p{font-size:14px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:30px}
.card{background:#fff;border:1px solid var(--hairline);border-radius:10px;padding:24px;
  color:var(--ink);display:block}
a.card:hover{text-decoration:none;border-color:var(--accent)}
.card .tag{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:1.6px;
  text-transform:uppercase;color:var(--muted)}
.card h3{color:var(--navy);font-size:17px;margin:8px 0 8px;font-weight:600}
.card p{font-size:14px}
.card .quiet{margin-top:12px;font-size:12.5px;color:var(--accent);font-weight:600}

/* navy band */
.band{background:var(--navy);color:#fff}
.band .eyebrow{color:var(--steel)}
.band h2{color:#fff}
.band p{color:var(--steel)}
.band blockquote{font-size:26px;line-height:1.4;font-weight:600;max-width:30ch;margin:16px 0 20px;color:#fff}
.creds{display:flex;gap:34px;flex-wrap:wrap;margin-top:30px}
.cred b{display:block;color:#fff;font-size:20px}
.cred span{font-size:12.5px;color:var(--steel)}
.band a:not(.btn){color:#fff;text-decoration:underline;text-decoration-color:var(--steel)}
.band .btn{background:#fff;color:var(--navy) !important;border-color:#fff}
.band .btn:hover{background:var(--steel);border-color:var(--steel)}

/* centered CTA sections */
.center{text-align:center}
.center h2{max-width:32ch;margin:12px auto 10px}
.center p{max-width:52ch;margin:0 auto 26px}

/* work page stages */
.system{padding:56px 0}
.system h3{color:var(--navy);font-size:22px;font-weight:600;margin:10px 0 16px;letter-spacing:-.2px}
.system h4{font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:10.5px;
  letter-spacing:1.8px;text-transform:uppercase;color:var(--muted);margin:18px 0 6px}
.system p{max-width:62ch;font-size:15.5px}

/* about */
.years{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:1.6px;
  color:var(--muted);text-transform:uppercase}
.namefacet{margin-top:22px}
.namefacet+p{margin-top:22px}
.namefacet b{color:var(--navy)}

/* footer */
footer{padding:44px 0 60px;font-size:13.5px;color:var(--muted);border-top:0}
.footrow{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer b{color:var(--navy)}
.monoline{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:1.5px;
  text-transform:uppercase}

/* ---------- first-visit intro film (up-etch-v2: pen etch on navy, zoom through the mark,
   the etch ground is what remains on the page beneath) ---------- */
html.intro-lock,html.intro-lock body{overflow:hidden}
.introVeil{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(130% 100% at 50% 50%,#16324f 0%,#0d2038 66%,#0a1a2e 100%);
  will-change:opacity}
.introVeil .build{width:min(60vmin,460px);aspect-ratio:1;overflow:visible;transform-origin:50% 50%;
  will-change:transform}
.introVeil .build svg{width:100%;height:100%;overflow:visible;display:block}
.introVeil .scf{fill:none;stroke:var(--steel);stroke-width:2;stroke-opacity:.85;
  stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 3px rgba(143,179,221,.4))}
.introVeil .scf.plane{stroke:#cfe0f5;stroke-width:3;stroke-opacity:1;
  filter:drop-shadow(0 0 5px rgba(200,224,255,.75)) drop-shadow(0 0 14px rgba(150,188,240,.45))}
.introVeil .mark{fill:var(--paper);fill-opacity:0;stroke:var(--paper);stroke-width:3;
  stroke-linecap:round;stroke-linejoin:round}
.introVeil .mark.arrow{filter:drop-shadow(0 0 6px rgba(226,238,255,.75)) drop-shadow(0 0 20px rgba(150,188,240,.55)) drop-shadow(0 0 42px rgba(120,165,225,.32))}
.introVeil .mark.bar{stroke:none;filter:drop-shadow(0 0 7px rgba(200,220,245,.5))}
.introVeil .pen{fill:#fafaf9;filter:drop-shadow(0 0 6px rgba(226,238,255,.95)) drop-shadow(0 0 15px rgba(150,188,240,.7))}
.introSkip{position:fixed;top:18px;right:18px;z-index:90;font-family:'IBM Plex Mono',monospace;
  font-size:11px;letter-spacing:1.6px;text-transform:uppercase;color:#cfe0f5;
  background:rgba(13,15,19,.6);border:1px solid rgba(143,179,221,.4);border-radius:6px;
  padding:8px 14px;cursor:pointer}
.introSkip:hover{background:rgba(27,98,181,.4)}

/* ---------- responsive ---------- */
@media (max-width:640px){
  h1{font-size:30px}
  h2{font-size:21px}
  header{padding:56px 0 48px}
  section{padding:48px 0}
  .navlinks{gap:16px;font-size:13px}
  .brand{gap:9px}
  .brand img{width:36px;height:36px}
  .wordmark{font-size:15px;letter-spacing:.5px;white-space:nowrap}
  .wordmark small{font-size:8.5px;letter-spacing:1.5px}
  .navrow{flex-wrap:wrap;padding-top:12px;padding-bottom:12px}
  .navlinks{width:100%;justify-content:space-between;gap:10px}
  .navlinks .btn{padding:8px 12px;font-size:12.5px}
  .footrow{flex-direction:column;gap:16px}
  .footrow>div{text-align:center !important}
}