/* ============================================================
   FUSION DEVELOPERS — GLASS UI DESIGN SYSTEM
   Owner: FD-WEB-003 (Design System Engineer)
   Tokens are the SOUL.md brand spec. Do not invent new hues.
   ============================================================ */
/* Canonical brand per FD-BRAND-001 Rev 1.0 §10.2 (supersedes legacy FD-BRAND-2026-001).
   Deep architectural navy #0F1B2B / Warm brushed gold #C9A227 / Warm off-white #F4F1EA.
   Gold accent < 10% of any composition. See Marketing/FD-BRAND-RAILS-001. */
:root{
  /* Brand — canonical FD-BRAND-001 §10.2 */
  --navy:#0F1B2B;        /* Deep architectural navy (primary) */
  --gold:#C9A227;        /* Warm brushed gold (accent <10%)  */
  --sand:#F4F1EA;        /* Warm off-white (neutral base)    */
  --indigo-900:#0C1524;
  --indigo-700:#152036;
  --indigo-500:#243B63;
  --ink:#0A1120;
  --paper:#F4F1EA;       /* warm off-white base */
  --muted:rgba(244,241,234,.62);
  --line:rgba(201,162,39,.22);

  /* Glass */
  --glass-bg:rgba(255,255,255,.055);
  --glass-bg-2:rgba(255,255,255,.09);
  --glass-brd:rgba(255,255,255,.14);
  --glass-blur:18px;
  --glass-shadow:0 24px 60px -20px rgba(0,0,0,.65);

  /* Type */
  --font-display:"Cormorant Garamond","Times New Roman",serif;
  --font-ui:"Inter","Helvetica Neue",Arial,sans-serif;
  --step--1:clamp(.78rem,.74rem + .2vw,.9rem);
  --step-0:clamp(.98rem,.94rem + .25vw,1.08rem);
  --step-1:clamp(1.3rem,1.15rem + .7vw,1.7rem);
  --step-2:clamp(1.9rem,1.5rem + 1.8vw,3rem);
  --step-3:clamp(2.6rem,1.7rem + 4.2vw,5.6rem);

  /* Space / motion */
  --sp:clamp(1rem,.6rem + 2vw,2.2rem);
  --r:18px;
  --ease:cubic-bezier(.22,1,.36,1);
}
:root{--indigo-500:#243B63;}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:auto;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ink);color:var(--paper);
  font-family:var(--font-ui);font-size:var(--step-0);line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--gold);color:var(--indigo-900)}

/* ---------- layout ---------- */
.wrap{width:min(1240px,92vw);margin-inline:auto}
.section{padding:clamp(4.5rem,9vw,9rem) 0;position:relative}
.eyebrow{
  font-size:var(--step--1);letter-spacing:.32em;text-transform:uppercase;
  color:var(--gold);font-weight:600;margin:0 0 .9rem;
}
h1,h2,h3{font-family:var(--font-display);font-weight:500;letter-spacing:-.01em;margin:0 0 .6em;line-height:1.05}
h1{font-size:var(--step-3)}
h2{font-size:var(--step-2)}
h3{font-size:var(--step-1)}
p{margin:0 0 1.1em;color:var(--muted);max-width:64ch}
.lead{font-size:clamp(1.05rem,.98rem + .5vw,1.35rem);color:rgba(247,244,239,.82)}

/* ---------- glass primitives ---------- */
.glass{
  background:var(--glass-bg);
  border:1px solid var(--glass-brd);
  border-radius:var(--r);
  backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  box-shadow:var(--glass-shadow);
  position:relative;overflow:hidden;
}
.glass::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(140deg,rgba(255,255,255,.16),transparent 42%);
  mix-blend-mode:overlay;
}
.glass-strong{background:var(--glass-bg-2)}
.card{padding:clamp(1.4rem,2.4vw,2.2rem)}
.card:hover{transform:translateY(-4px);border-color:rgba(201,162,39,.42)}
.card{transition:transform .5s var(--ease),border-color .5s var(--ease)}

/* ---------- nav ---------- */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:80;display:flex;align-items:center;
  justify-content:space-between;gap:1rem;padding:.85rem clamp(1rem,4vw,2.4rem);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:linear-gradient(to bottom,rgba(10,17,32,.72),rgba(10,17,32,0));
  transition:background .4s var(--ease),box-shadow .4s var(--ease);
}
.nav.solid{background:rgba(10,17,32,.9);box-shadow:0 1px 0 var(--line)}
.nav-logo{display:flex;align-items:center;gap:.7rem}
.nav-logo img{height:38px;width:auto}
.nav-logo span{font-family:var(--font-display);font-size:1.15rem;letter-spacing:.04em}
.nav-links{display:flex;gap:1.6rem;font-size:var(--step--1);letter-spacing:.12em;text-transform:uppercase}
.nav-links a{opacity:.78;transition:opacity .3s,color .3s}
.nav-links a:hover{opacity:1;color:var(--gold)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;padding:.85rem 1.6rem;
  border-radius:999px;font-size:var(--step--1);letter-spacing:.14em;text-transform:uppercase;
  font-weight:600;border:1px solid var(--gold);color:var(--gold);
  background:transparent;cursor:pointer;transition:all .45s var(--ease);
}
.btn:hover{background:var(--gold);color:var(--indigo-900);box-shadow:0 12px 34px -12px rgba(201,162,39,.8)}
.btn-solid{background:var(--gold);color:var(--indigo-900)}
.btn-solid:hover{background:var(--sand);border-color:var(--sand)}

/* ---------- grid helpers ---------- */
.grid{display:grid;gap:clamp(1rem,2vw,1.6rem)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g-3,.g-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g-2,.g-3,.g-4{grid-template-columns:1fr}.nav-links{display:none}}

/* ---------- gold rule / dividers ---------- */
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.5;margin:2.5rem 0}

/* ---------- marquee ---------- */
.marquee{overflow:hidden;white-space:nowrap;border-block:1px solid var(--line);padding:1.1rem 0}
.marquee-track{display:inline-flex;gap:3.5rem;animation:mq 28s linear infinite;will-change:transform}
.marquee span{font-family:var(--font-display);font-size:clamp(1.4rem,3vw,2.4rem);color:rgba(244,241,234,.55)}
.marquee span b{color:var(--gold);font-weight:500}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- forms ---------- */
.field{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1rem}
.field label{font-size:var(--step--1);letter-spacing:.14em;text-transform:uppercase;color:var(--sand)}
.field input,.field textarea,.field select{
  background:rgba(255,255,255,.06);border:1px solid var(--glass-brd);color:var(--paper);
  padding:.85rem 1rem;border-radius:12px;font:inherit;font-size:var(--step-0);
  transition:border-color .3s,background .3s;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--gold);background:rgba(255,255,255,.1)
}
.field textarea{min-height:130px;resize:vertical}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);padding:3rem 0 2rem;font-size:var(--step--1);color:var(--muted)}
.footer-conf{letter-spacing:.16em;color:var(--sand)}

/* ---------- reveal (GSAP fallback) ---------- */
.reveal{opacity:0;transform:translateY(28px)}
html.no-js .reveal,body.loaded .reveal.shown{opacity:1;transform:none;transition:opacity .9s var(--ease),transform .9s var(--ease)}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1!important;transform:none!important}
  .marquee-track{animation:none}
}