/* ==========================================================================
   CueSeal family — shared stylesheet (v13 editorial design system)
   Pages: cueseal-website, genlock-website, muxnode-website, cuebus-website
   Dark-only "journal" language: Fraunces display serif, IBM Plex Sans body,
   JetBrains Mono for data. Tiering: primitive tokens -> brand accents ->
   components. One accent system: `.brand-*` swaps --accent / --accent-hi /
   --accent-ink so a single class re-skins a page (or a single card — the
   homepage platform cards carry their own brand class). Derived accent
   tints are computed at the use site with color-mix() so they follow
   whichever accent is in scope.
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Fonts — self-hosted latin subsets (woff2, ./assets/fonts/)
   Fraunces = display (serif) · IBM Plex Sans = body · JetBrains Mono = data
   -------------------------------------------------------------------------- */
@font-face{font-family:'Fraunces';font-style:normal;font-weight:400;font-display:swap;src:url("./assets/fonts/fraunces-400.woff2") format('woff2');}
@font-face{font-family:'Fraunces';font-style:normal;font-weight:500;font-display:swap;src:url("./assets/fonts/fraunces-500.woff2") format('woff2');}
@font-face{font-family:'Fraunces';font-style:normal;font-weight:700;font-display:swap;src:url("./assets/fonts/fraunces-700.woff2") format('woff2');}
@font-face{font-family:'Fraunces';font-style:italic;font-weight:400;font-display:swap;src:url("./assets/fonts/fraunces-400-italic.woff2") format('woff2');}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:400;font-display:swap;src:url("./assets/fonts/ibm-plex-sans-400.woff2") format('woff2');}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:500;font-display:swap;src:url("./assets/fonts/ibm-plex-sans-500.woff2") format('woff2');}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:600;font-display:swap;src:url("./assets/fonts/ibm-plex-sans-600.woff2") format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;src:url("./assets/fonts/jetbrains-mono-400.woff2") format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;src:url("./assets/fonts/jetbrains-mono-500.woff2") format('woff2');}

/* --------------------------------------------------------------------------
   1. Primitive tokens
   -------------------------------------------------------------------------- */
:root{
  /* surfaces — warm ink */
  --bg:#0d0c0a;
  --surface:#141310;
  --surface-2:#1a1813;
  --surface-3:#211e18;
  --well:#0a0906;              /* recessed: code listings, inputs */
  --line:rgba(236,227,207,.11);
  --line-2:rgba(236,227,207,.18);

  /* text */
  --fg:#f3f0e9;        /* headings */
  --body:#cdc8bc;      /* paragraph */
  --muted:#a29b8d;     /* secondary */
  --faint:#736d61;     /* decorative / non-essential only */

  /* accent palette */
  --gold:#e8b64a;
  --gold-hi:#f2cd7c;
  --mag:#ec84f6;       /* Genlock  — live / timing */
  --teal:#3cccae;      /* MuxNode  — encode / package */
  --red:#f2685f;       /* Cuebus   — meaning / provenance */

  /* type */
  --f-display:'Fraunces','Fraunces Fallback',Georgia,'Iowan Old Style','Palatino Linotype',serif;
  --f-body:'IBM Plex Sans',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;

  /* scale */
  --container:1140px;
  --gutter:clamp(1.25rem,5vw,2.75rem);
  --section-y:clamp(4rem,9vw,7.5rem);
  --radius:14px;
  --radius-sm:9px;
  --shadow:0 24px 48px -30px rgba(0,0,0,.85);
  --shadow-lift:0 30px 60px -28px rgba(0,0,0,.9);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* --------------------------------------------------------------------------
   2. Brand accents — one class re-skins a page (or a card).
   --accent-ink is the text color used ON the accent (buttons, skip link);
   each pairing must clear 4.5:1.
   -------------------------------------------------------------------------- */
:root, .brand-cueseal{ --accent:var(--gold); --accent-hi:var(--gold-hi); --accent-ink:#1a1509; }
.brand-genlock{ --accent:var(--mag);  --accent-hi:#f4a9fb; --accent-ink:#1d0a20; }
.brand-muxnode{ --accent:var(--teal); --accent-hi:#7fe0c9; --accent-ink:#06201a; }
.brand-cuebus{  --accent:var(--red);  --accent-hi:#f79a93; --accent-ink:#260b08; }

/* --------------------------------------------------------------------------
   3. Reset & base
   -------------------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--body);
  font-family:var(--f-body);font-size:1.0625rem;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
/* the dc-runtime re-renders body content into a wrapper, so the page
   surface is painted on .page as well as body */
.page{background:var(--bg);color:var(--body);}
img,svg{display:block;max-width:100%;}
h1,h2,h3,h4,p,blockquote,figure{margin:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}

/* subtle page grain, kept faint */
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(1200px 600px at 80% -10%,rgba(232,182,74,.05),transparent 60%),
    radial-gradient(900px 500px at -10% 20%,rgba(236,132,246,.03),transparent 55%);
}

/* --------------------------------------------------------------------------
   4. Interaction & accessibility
   -------------------------------------------------------------------------- */
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px;}
[id]{scroll-margin-top:96px;} /* jump links vs the sticky masthead */

/* skip link: first focusable element on every page */
.skip{position:absolute;left:.75rem;top:.75rem;z-index:200;transform:translateY(-160%);
  background:var(--accent);color:var(--accent-ink);font-weight:600;padding:.6rem 1rem;border-radius:8px;
  transition:transform .2s var(--ease);}
.skip:focus{transform:translateY(0);}

.visually-hidden{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip-path:inset(50%);white-space:nowrap;
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .card:hover,.plat:hover,.plat:focus-visible,
  .btn-primary:hover,.btn-primary:focus-visible,
  .btn-ghost:hover,.btn-ghost:focus-visible{transform:none;}
}

/* --------------------------------------------------------------------------
   5. Layout primitives
   -------------------------------------------------------------------------- */
.wrap{max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter);}
.section{padding-block:var(--section-y);}
.hr{height:1px;background:var(--line);border:0;}

/* tinted full-width section variants (journal bands) */
.section--tinted{background:var(--surface);border-block:1px solid var(--line);}
.section--tinted-top{background:var(--surface);border-top:1px solid var(--line);}

/* section header (journal §) */
.shead{display:flex;align-items:center;gap:1rem;margin-bottom:1.6rem;}
.shead .sec-name{font-family:var(--f-mono);font-weight:500;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);white-space:nowrap;}
.shead .sec-rule{flex:1;height:1px;background:var(--line-2);}

.grid{display:grid;gap:clamp(1.1rem,2.5vw,1.6rem);}
.g-2{grid-template-columns:repeat(2,1fr);}
.g-3{grid-template-columns:repeat(3,1fr);}

/* --------------------------------------------------------------------------
   6. Type helpers
   -------------------------------------------------------------------------- */
.mono{font-family:var(--f-mono);font-weight:500;letter-spacing:.06em;}
.mono--body{color:var(--body);}
.kicker{
  font-family:var(--f-mono);font-weight:500;font-size:.72rem;
  letter-spacing:.22em;text-transform:uppercase;color:var(--accent);
}
.eyebrow{
  font-family:var(--f-mono);font-weight:500;font-size:.72rem;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
}
.display{font-family:var(--f-display);font-weight:500;letter-spacing:-.02em;line-height:1.05;color:var(--fg);}

/* sized display variants (replace per-instance inline styles) */
.display--intro{font-weight:400;font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.35;max-width:50ch;color:var(--body);margin-bottom:clamp(2.2rem,4vw,3rem);}
.display--md{font-size:clamp(1.8rem,3.4vw,2.6rem);margin-bottom:1.3rem;}
.display--lg{font-size:clamp(2rem,4vw,3rem);max-width:22ch;margin-bottom:.75rem;}
.display--xl{font-size:clamp(2rem,4.5vw,3.2rem);max-width:18ch;margin-bottom:1.3rem;}

.lead{font-size:clamp(1.06rem,1.5vw,1.28rem);line-height:1.55;color:var(--body);max-width:54ch;}
.lead--flush{margin-bottom:clamp(2.4rem,5vw,3.2rem);}
.prose{max-width:64ch;}
.prose p+p{margin-top:1.1em;}
.prose-muted{color:var(--muted);font-size:.98rem;}

/* --------------------------------------------------------------------------
   7. Top utility bar
   -------------------------------------------------------------------------- */
.utility{border-bottom:1px solid var(--line);background:rgba(9,8,6,.6);}
.utility .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding-block:.55rem;font-family:var(--f-mono);font-size:.7rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);flex-wrap:wrap;}
.utility .u-right{display:flex;align-items:center;gap:1rem;}
.utility .sep{color:var(--faint);}

/* --------------------------------------------------------------------------
   8. Masthead / nav
   -------------------------------------------------------------------------- */
.masthead{position:sticky;top:0;z-index:60;
  background:rgba(13,12,10,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);}
.masthead .wrap{position:relative;display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding-block:.9rem;}
.brand{display:flex;align-items:center;gap:.8rem;}
.brand img{width:44px;height:44px;border-radius:11px;}
.brand .name{font-family:var(--f-display);font-weight:700;font-size:1.85rem;letter-spacing:-.01em;color:var(--fg);line-height:1;}
.nav{display:flex;align-items:center;gap:1.9rem;}
.nav-links{display:flex;align-items:center;gap:1.9rem;}
.nav a.navlink{font-family:var(--f-mono);font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);position:relative;padding-block:.3rem;transition:color .2s var(--ease);}
.nav a.navlink::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent);transition:width .25s var(--ease);}
.nav a.navlink:hover,.nav a.navlink:focus-visible{color:var(--fg);}
.nav a.navlink:hover::after,.nav a.navlink:focus-visible::after{width:100%;}
.nav-cta{display:flex;align-items:center;gap:1rem;}

/* collapsible nav disclosure (mobile) — open state lives in the .is-open
   class, never a boolean attribute: the design-canvas runtime drops
   arbitrary boolean attributes when it re-renders the template */
.nav-toggle{display:none;background:transparent;border:1px solid var(--line-2);border-radius:var(--radius-sm);
  padding:.5rem .9rem;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease);}
.nav-toggle:hover,.nav-toggle:focus-visible{color:var(--fg);border-color:var(--accent);}

/* --------------------------------------------------------------------------
   9. Buttons
   -------------------------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;gap:.55rem;font-weight:600;
  border-radius:9px;padding:.72rem 1.2rem;font-size:.95rem;cursor:pointer;
  transition:transform .18s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);}
.btn-primary{background:var(--accent);color:var(--accent-ink);border:1px solid var(--accent);}
.btn-primary:hover,.btn-primary:focus-visible{background:var(--accent-hi);transform:translateY(-1px);
  box-shadow:0 10px 24px -12px color-mix(in srgb,var(--accent) 60%,transparent);}
.btn-ghost{background:transparent;color:var(--fg);border:1px solid var(--line-2);}
.btn-ghost:hover,.btn-ghost:focus-visible{border-color:var(--accent);transform:translateY(-1px);}
.btn-sm{padding:.55rem .95rem;font-size:.78rem;font-family:var(--f-mono);letter-spacing:.08em;text-transform:uppercase;font-weight:500;}

/* --------------------------------------------------------------------------
   10. Epigraph — a sourced pull-quote, magazine-opener style
   -------------------------------------------------------------------------- */
.epigraph{border-bottom:1px solid var(--line);background:var(--surface);}
.epigraph .wrap{padding-block:1.5rem;display:flex;flex-direction:column;gap:.6rem;}
.epigraph blockquote{font-family:var(--f-display);font-style:italic;font-weight:400;
  font-size:clamp(1.05rem,2vw,1.32rem);line-height:1.4;color:var(--body);max-width:56ch;}
.epigraph cite{font-family:var(--f-mono);font-style:normal;font-size:.7rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--muted);line-height:1.6;}
.epigraph cite a{color:var(--accent);text-decoration:underline;
  text-decoration-color:color-mix(in srgb,var(--accent) 40%,transparent);text-underline-offset:2px;}
.epigraph cite a:hover,.epigraph cite a:focus-visible{color:var(--accent-hi);}

/* --------------------------------------------------------------------------
   11. Hero (+ framed figures)
   -------------------------------------------------------------------------- */
.hero{padding-top:clamp(3rem,6vw,5.5rem);padding-bottom:clamp(2.5rem,5vw,4rem);}
.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:clamp(2.5rem,6vw,4.5rem);align-items:center;}
.h1{font-family:var(--f-display);font-weight:500;font-size:clamp(2.55rem,6vw,4.5rem);
  line-height:1.02;letter-spacing:-.03em;color:var(--fg);max-width:15ch;margin:.9rem 0 1.3rem;}
.h1 .accent{color:var(--accent);}
.hero .lead{margin-bottom:2rem;max-width:52ch;}
.hero-cta{display:flex;gap:.9rem;flex-wrap:wrap;align-items:center;}
.hero-note{font-family:var(--f-mono);font-size:.74rem;color:var(--muted);margin-top:1.5rem;letter-spacing:.02em;}

/* hero mark — simple, static logo */
.hero-mark{justify-self:center;text-align:center;}
.hero-mark img{width:clamp(120px,16vw,200px);height:clamp(120px,16vw,200px);border-radius:22%;
  border:1.5px solid color-mix(in srgb,var(--accent) 50%,transparent);box-shadow:var(--shadow);}
.hero-mark span{display:block;margin-top:1.1rem;font-family:var(--f-mono);font-size:.7rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--muted);}

/* framed figure (signal path, plane motifs) */
.figure{margin-top:clamp(2.5rem,5vw,3.5rem);border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,var(--surface-2),var(--surface));overflow:hidden;box-shadow:var(--shadow);}
.figure-bar{display:flex;align-items:center;justify-content:space-between;
  padding:.7rem 1.1rem;border-bottom:1px solid var(--line);
  font-family:var(--f-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);}
.figure-bar .tag{color:var(--accent);}
.figure-body{padding:clamp(1.6rem,3vw,2.4rem);}
.signal svg{width:100%;height:auto;}
.signal .sig-base{stroke:rgba(236,227,207,.16);}
.signal .sig-trace{stroke:#ece3cf;}
.signal .sig-node{stroke:var(--accent);fill:none;}
.signal .sig-node-core{fill:var(--accent);}
.signal-caption{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:1.1rem;}

/* --------------------------------------------------------------------------
   12. Stat strip
   -------------------------------------------------------------------------- */
.stats{border-block:1px solid var(--line);background:var(--surface);}
.stats .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.stat{padding:clamp(2rem,4vw,3rem) clamp(1rem,3vw,2rem);}
.stat+.stat{border-left:1px solid var(--line);}
.stat .n{font-family:var(--f-display);font-weight:700;font-size:clamp(3rem,6vw,4.2rem);line-height:1;letter-spacing:-.03em;color:var(--fg);}
.stat .n small{color:var(--accent);font-size:.4em;vertical-align:.55em;margin-left:.15em;font-weight:500;}
.stat .l{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:.9rem;}

/* --------------------------------------------------------------------------
   13. Pull-quote (operating principle)
   -------------------------------------------------------------------------- */
.principle{background:var(--surface);border-bottom:1px solid var(--line);}
.principle .kicker{margin-bottom:2rem;}
.pq{border-left:2px solid var(--accent);padding-left:clamp(1.4rem,3vw,2.4rem);}
.pq blockquote{font-family:var(--f-display);font-weight:400;font-size:clamp(1.8rem,4vw,3rem);
  line-height:1.16;letter-spacing:-.02em;color:var(--fg);max-width:13em;}
.pq blockquote em{font-style:normal;color:var(--accent);}
.principle .prose{margin-top:2.2rem;color:var(--muted);}
.principle .prose p::first-letter{font-family:var(--f-display);font-weight:700;
  font-size:3.3em;line-height:.72;float:left;padding:.04em .09em 0 0;color:var(--accent);}

/* --------------------------------------------------------------------------
   14. Cards — generic, research arcs, platform cards, planes
   -------------------------------------------------------------------------- */
.card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(1.6rem,3vw,2.2rem);box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);}
.card h3{font-family:var(--f-display);font-weight:500;font-size:clamp(1.3rem,2.4vw,1.6rem);
  letter-spacing:-.01em;color:var(--fg);line-height:1.15;margin-bottom:.7rem;}
.card p{color:var(--muted);font-size:1rem;line-height:1.6;}
.card .tag{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:1rem;}

/* research arcs */
.arc .n{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.14em;color:var(--accent);margin-bottom:1rem;}
.arc h3{margin-bottom:.8rem;}

/* platform cards — each carries its own .brand-* class for the accent */
.plat{display:flex;flex-direction:column;min-height:340px;color:var(--fg);}
.plat .top{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem;}
.plat .ico{width:46px;height:46px;border-radius:11px;border:1.5px solid var(--accent);}
.plat .dom{font-family:var(--f-mono);font-size:.72rem;color:var(--muted);}
.plat h3{margin-bottom:.4rem;}
.plat .role{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:1rem;color:var(--accent);}
.plat p{margin:0 0 auto;}
.plat .gloss{margin-top:1.5rem;padding-top:1.1rem;border-top:1px solid var(--line);
  font-family:var(--f-display);font-style:italic;font-size:1.02rem;color:var(--body);
  display:flex;align-items:center;justify-content:space-between;gap:.75rem;}
.plat .arrow{color:var(--faint);transition:transform .2s var(--ease),color .2s var(--ease);}
.plat:hover,.plat:focus-visible{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--shadow-lift);}
.plat:hover .arrow,.plat:focus-visible .arrow{color:var(--accent);transform:translateX(4px);}

/* three planes (joint grid) */
.planes{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.plane{background:var(--surface-2);padding:clamp(1.6rem,3vw,2.1rem);}
.plane .n{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:1rem;}
.plane p{color:var(--body);font-size:1rem;margin:0;line-height:1.55;}

/* --------------------------------------------------------------------------
   15. Control room — audit-log listing + capability grid
   -------------------------------------------------------------------------- */
.room{background:var(--surface);border-block:1px solid var(--line);}
.listing{max-width:640px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--surface-2);box-shadow:var(--shadow);margin-bottom:clamp(2rem,4vw,3rem);}
.listing .lbar{display:flex;align-items:center;justify-content:space-between;
  padding:.7rem 1rem;border-bottom:1px solid var(--line);
  font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;color:var(--muted);}
.listing .lbar .fn{display:inline-flex;align-items:center;gap:.6rem;color:var(--body);}
.listing .lbar .fn .d{width:8px;height:8px;border-radius:50%;background:var(--teal);}
.listing pre{margin:0;padding:1.4rem 1.4rem;background:var(--well);overflow-x:auto;
  font-family:var(--f-mono);font-size:.86rem;line-height:1.75;color:var(--body);}
.listing .lstat{display:flex;justify-content:space-between;padding:.6rem 1rem;
  border-top:1px solid var(--line);font-family:var(--f-mono);font-size:.7rem;color:var(--muted);}
.tk{color:var(--faint);}    /* punctuation (decorative) */
.tkk{color:#8bb4e8;}        /* keys */
.tv{color:var(--gold-hi);}  /* values */

.caps{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.cap{background:var(--surface-2);padding:1.5rem 1.2rem;}
.cap .n{font-family:var(--f-mono);font-size:.72rem;color:var(--accent);margin-bottom:.8rem;}
.cap .t{font-weight:500;color:var(--fg);}

/* --------------------------------------------------------------------------
   16. Method
   -------------------------------------------------------------------------- */
.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start;}
.method-list{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.method-item{padding:1.4rem 1.6rem;background:var(--surface-2);}
.method-item+.method-item{border-top:1px solid var(--line);}
.method-item .t{font-family:var(--f-display);font-weight:500;font-size:1.18rem;color:var(--fg);margin-bottom:.35rem;}
.method-item .d{font-size:.95rem;color:var(--muted);line-height:1.55;}
.method-flow{font-family:var(--f-mono);font-size:.8rem;letter-spacing:.06em;color:var(--accent);margin-bottom:1.4rem;}

/* --------------------------------------------------------------------------
   17. Support — stamp + waitlist form card
   -------------------------------------------------------------------------- */
.support{background:var(--surface);border-top:1px solid var(--line);}
.support .kicker{margin-bottom:1.4rem;}
.support-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(2rem,5vw,4.5rem);align-items:start;}
.stamp{display:inline-flex;align-items:center;gap:.9rem;border-radius:100px;
  border:1px solid color-mix(in srgb,var(--accent) 50%,transparent);
  padding:.7rem 1.2rem;margin-top:2rem;}
.stamp svg{width:26px;height:26px;}
.stamp .ring-outer{stroke:color-mix(in srgb,var(--accent) 50%,transparent);}
.stamp .ring-inner{stroke:color-mix(in srgb,var(--accent) 35%,transparent);}
.stamp .tick{stroke:var(--accent);}
.stamp span{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);}
.form-card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(1.8rem,3vw,2.4rem);box-shadow:var(--shadow);}
.form-card .k{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:1.2rem;}
.field label{display:block;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:.5rem;}
.field input{width:100%;padding:.85rem 1rem;background:var(--well);border:1px solid var(--line-2);border-radius:9px;
  color:var(--fg);font-size:1rem;transition:border-color .2s var(--ease);}
.field input::placeholder{color:var(--faint);}
.field input:focus-visible{outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 15%,transparent);}
.field input[aria-invalid="true"]{border-color:var(--red);}
.form-card .btn{width:100%;justify-content:center;margin-top:1rem;}
/* status line: state carried in the modifier classes, set by ui.js */
.form-msg{font-family:var(--f-mono);font-size:.8rem;color:var(--muted);margin-top:1rem;min-height:1.2em;}
.form-msg--ok{color:var(--teal);}
.form-msg--error{color:var(--red);}
.form-links{border-top:1px solid var(--line);margin-top:1.6rem;padding-top:1.4rem;display:flex;flex-direction:column;gap:.85rem;}
.form-links a{color:var(--accent);font-size:.98rem;display:inline-flex;gap:.5rem;transition:color .2s var(--ease);}
.form-links a:hover,.form-links a:focus-visible{color:var(--accent-hi);}

/* --------------------------------------------------------------------------
   18. Sub-brand components — carried over from the platform pages
   -------------------------------------------------------------------------- */
.kv-row{display:flex;flex-wrap:wrap;gap:1rem 2.2rem;margin-top:2rem;
  font-family:var(--f-mono);font-size:.74rem;letter-spacing:.02em;color:var(--muted);}
.kv-row b{color:var(--accent);font-weight:500;}

.chip-row{display:flex;flex-wrap:wrap;gap:.55rem;margin-top:1.4rem;}
.chip{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);border:1px solid var(--line-2);border-radius:100px;padding:.35rem .75rem;}
.chip--accent{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 50%,transparent);}

.note-block{border-left:2px solid var(--accent);padding-left:1.1rem;margin-top:2rem;
  font-family:var(--f-mono);font-size:.78rem;line-height:1.7;color:var(--muted);max-width:70ch;}

.hero-plane-motif{width:100%;height:auto;margin:0;}

/* --------------------------------------------------------------------------
   19. Footer
   -------------------------------------------------------------------------- */
.foot{background:var(--bg);border-top:1px solid var(--line);}
.foot-top{display:flex;justify-content:space-between;gap:2.5rem;flex-wrap:wrap;padding-block:clamp(2.5rem,5vw,3.5rem) 2rem;}
.foot .about{max-width:34ch;}
.foot .about .b{display:flex;align-items:center;gap:.7rem;margin-bottom:1rem;}
.foot .about img{width:36px;height:36px;border-radius:9px;}
.foot .about .nm{font-family:var(--f-display);font-weight:700;font-size:1.2rem;color:var(--fg);}
.foot .about p{color:var(--muted);font-size:.95rem;}
.foot-cols{display:flex;gap:clamp(2.5rem,6vw,4.5rem);}
.foot-col{display:flex;flex-direction:column;gap:.7rem;}
.foot-col .h{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:.3rem;}
.foot-col a{color:var(--muted);font-size:.95rem;transition:color .2s var(--ease);}
.foot-col a:hover,.foot-col a:focus-visible{color:var(--fg);}
.foot-bar{border-top:1px solid var(--line);}
.foot-bar .wrap{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-block:1rem;
  font-family:var(--f-mono);font-size:.72rem;letter-spacing:.05em;color:var(--muted);}

/* --------------------------------------------------------------------------
   20. Responsive
   -------------------------------------------------------------------------- */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:2.5rem;}
  .hero-mark{order:-1;}
  .method-grid,.support-grid{grid-template-columns:1fr;}
  .caps{grid-template-columns:repeat(2,1fr);}

  /* nav collapses into a disclosure panel under the masthead */
  .nav-toggle{display:inline-flex;}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:1.1rem;
    background:var(--bg);border-bottom:1px solid var(--line-2);
    padding:1.2rem var(--gutter) 1.5rem;}
  .nav-links.is-open{display:flex;}
  .nav-cta{padding-top:.2rem;}
}
@media (max-width:720px){
  /* long section names ("Three platforms · one control room") exceed narrow
     viewports if kept on one line */
  .shead .sec-name{white-space:normal;}
  .g-2,.g-3,.planes{grid-template-columns:1fr;}
  .planes{gap:1px;}
  .stats .wrap{grid-template-columns:1fr;}
  .stat+.stat{border-left:0;border-top:1px solid var(--line);}
  .caps{grid-template-columns:1fr;}
  .foot-top{flex-direction:column;}
}
@media (max-width:420px){
  .brand .name{font-size:1.5rem;}
}