/* ============================================================================
   Factor — the credit bureau for AI agents
   Design system. Near-black + gold, minimal, premium. Trust Orbit brand.
   ============================================================================ */

:root {
  /* ground + surfaces (warm-biased darks, chosen not defaulted) */
  --bg:        #0B0B0D;
  --bg-soft:   #0E0D11;
  --elev:      #100E14;
  --surface:   #141119;
  --surface-2: #191521;
  --line:      #221D29;
  --line-2:    #302938;

  /* gold — the single accent, three stops */
  --gold:      #E8B14B;
  --gold-2:    #F4D17B;
  --gold-pale: #FFF2CC;

  /* ink */
  --ink:    #F4F1EA;   /* headings */
  --text:   #C6C0B5;   /* body */
  --muted:  #918B81;   /* secondary */
  --faint:  #625C54;   /* tertiary / captions */

  /* band scale — gold-family value ramp, cohesive not rainbow */
  --prime:      #F6DA92;
  --established:#E8B14B;
  --emerging:   #C0913E;
  --unproven:   #7E7669;

  --font-display: "Sora", "SF Pro Display", system-ui, sans-serif;
  --font-body:    "Manrope", "SF Pro Text", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1120px;
  --gutter: clamp(20px, 5vw, 40px);
  --nav-h: 76px;
  --radius: 16px;
  --radius-sm: 11px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: hidden; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  overflow-wrap: break-word;
}
img, svg, video { max-width: 100%; }
/* grid/flex text children must be allowed to shrink below their content size */
.hero-copy, .demo-panel, .demo > *, .moat-grid > *, .foot-grid > *, .nav-inner > * { min-width: 0; }

h1, h2, h3, h4 { font-family: var(--font-display); color: var(--ink); letter-spacing: -.02em; line-height: 1.06; text-wrap: balance; font-weight: 600; }
.mono { font-family: var(--font-mono); }
a { color: inherit; text-decoration: none; }
::selection { background: rgba(232,177,75,.24); color: var(--gold-pale); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }
.eyebrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); font-weight: 500; }
.tnum { font-variant-numeric: tabular-nums; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-body); font-size: 15px; font-weight: 600;
  padding: 12px 22px; border-radius: 999px; cursor: pointer;
  border: 1px solid transparent; transition: transform .25s var(--ease), background .25s, border-color .25s, box-shadow .25s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-gold { background: var(--gold); color: #1A1206; box-shadow: 0 0 0 0 rgba(232,177,75,.5); }
.btn-gold:hover { background: var(--gold-2); box-shadow: 0 10px 34px -12px rgba(232,177,75,.65); }
.btn-ghost { border-color: var(--line-2); color: var(--ink); background: rgba(255,255,255,.01); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-2); }
.btn .arrow { transition: transform .3s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* ---- nav ---- */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(16px); background: color-mix(in srgb, var(--bg) 70%, transparent); border-bottom: 1px solid transparent; transition: border-color .3s, background .3s; }
.nav.scrolled { border-color: var(--line); background: color-mix(in srgb, var(--bg) 88%, transparent); }
.nav-inner { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; height: 76px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-display); font-weight: 600; font-size: 19.5px; color: var(--ink); letter-spacing: -.02em; justify-self: start; }
.brand svg { width: 27px; height: 27px; }
.nav-links { display: flex; align-items: center; gap: 8px; justify-self: center; background: var(--elev); border: 1px solid var(--line); border-radius: 999px; padding: 5px 8px; }
.nav-links a { font-size: 14.5px; color: var(--muted); transition: color .2s, background .2s; padding: 7px 16px; border-radius: 999px; }
.nav-links a:hover { color: var(--ink); background: color-mix(in srgb, var(--ink) 6%, transparent); }
.nav-links a.active { color: var(--gold-2); }
.nav-right { justify-self: end; display: flex; align-items: center; gap: 12px; }
.nav-cta { display: inline-flex; align-items: center; gap: 8px; font-size: 14.5px; font-weight: 600; color: #1A1206; background: var(--gold); padding: 9px 18px; border-radius: 999px; transition: background .25s, box-shadow .25s; }
.nav-cta:hover { background: var(--gold-2); box-shadow: 0 8px 26px -12px rgba(232,177,75,.6); }
.nav-cta .arrow { transition: transform .3s var(--ease); } .nav-cta:hover .arrow { transform: translateX(3px); }
/* mobile menu — base (hidden) declared before the breakpoint that reveals it */
.nav-toggle { display: none; width: 42px; height: 42px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; background: var(--surface-2); border: 1px solid var(--line-2); border-radius: 12px; cursor: pointer; padding: 0; }
.nav-toggle span { display: block; width: 19px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .3s var(--ease), opacity .2s; }
.nav.menu-open .nav-toggle span:nth-child(1) { transform: translateY(3.35px) rotate(45deg); }
.nav.menu-open .nav-toggle span:nth-child(2) { transform: translateY(-3.35px) rotate(-45deg); }
.mobile-menu { position: fixed; left: 0; right: 0; top: var(--nav-h); z-index: 49; display: none; padding: 12px var(--gutter) 26px;
  background: color-mix(in srgb, var(--bg) 94%, transparent); backdrop-filter: blur(18px); border-bottom: 1px solid var(--line);
  opacity: 0; transform: translateY(-14px); pointer-events: none; transition: opacity .28s var(--ease), transform .28s var(--ease); }
.nav.menu-open .mobile-menu { opacity: 1; transform: none; pointer-events: auto; }
.mm-links { display: flex; flex-direction: column; }
.mm-links a { font-family: var(--font-display); font-weight: 600; font-size: 21px; color: var(--ink); letter-spacing: -.02em; padding: 15px 4px; border-bottom: 1px solid var(--line); transition: color .2s; }
.mm-links a:hover, .mm-links a.active { color: var(--gold-2); }
.mm-cta { margin-top: 20px; width: 100%; justify-content: center; font-size: 16px; padding: 14px; }
@media (max-width: 820px) {
  .nav-inner { grid-template-columns: 1fr auto; }
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .mobile-menu { display: block; }
  .nav-right .nav-cta { display: none; }   /* the CTA lives inside the mobile menu */
}
@keyframes shimmer { 0% { background-position: -180% 0; } 100% { background-position: 180% 0; } }

/* ---- sections ---- */
section { position: relative; }
.section-pad { padding-block: clamp(72px, 12vw, 140px); }
.sec-head { max-width: 640px; margin-bottom: clamp(36px, 6vw, 60px); }
.sec-head h2 { font-size: clamp(28px, 5vw, 44px); margin: 14px 0 0; }
.sec-head p { color: var(--muted); font-size: clamp(16px, 2vw, 18px); margin-top: 18px; max-width: 54ch; }
.hr-glow { height: 1px; border: 0; background: linear-gradient(90deg, transparent, var(--line-2) 20%, var(--line-2) 80%, transparent); }

/* ---- reveal on scroll ---- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .9s var(--ease-out), transform .9s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }
.reveal[data-d="4"] { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---- cards ---- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: border-color .3s, transform .3s var(--ease), background .3s; }
.card:hover { border-color: var(--line-2); }

/* ---- pills / chips ---- */
.pill { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; padding: 6px 13px; border: 1px solid var(--line-2); border-radius: 999px; color: var(--text); background: var(--elev); }
.pill .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 9px 1px rgba(232,177,75,.55); }

/* ---- band chip ---- */
.band { display: inline-flex; align-items: center; gap: 7px; font-family: var(--font-mono); font-size: 12.5px; font-weight: 500; letter-spacing: .02em; padding: 4px 11px; border-radius: 999px; border: 1px solid; }
.band[data-b="Prime"]       { color: var(--prime);       border-color: color-mix(in srgb, var(--prime) 40%, transparent);       background: color-mix(in srgb, var(--prime) 8%, transparent); }
.band[data-b="Established"]  { color: var(--established);  border-color: color-mix(in srgb, var(--established) 40%, transparent);  background: color-mix(in srgb, var(--established) 8%, transparent); }
.band[data-b="Emerging"]     { color: var(--emerging);     border-color: color-mix(in srgb, var(--emerging) 44%, transparent);     background: color-mix(in srgb, var(--emerging) 9%, transparent); }
.band[data-b="Unproven"]     { color: var(--unproven);     border-color: color-mix(in srgb, var(--unproven) 46%, transparent);     background: color-mix(in srgb, var(--unproven) 10%, transparent); }

/* ---- footer ---- */
footer { border-top: 1px solid var(--line); padding-block: 54px; margin-top: 40px; }
.foot-grid { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; align-items: flex-start; }
.foot-grid .brand { font-size: 20px; }
.foot-tag { color: var(--muted); font-size: 14.5px; margin-top: 14px; max-width: 34ch; }
.foot-links { display: flex; gap: 46px; flex-wrap: wrap; }
.foot-col h5 { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--faint); margin-bottom: 14px; font-weight: 500; }
.foot-col a { display: block; color: var(--muted); font-size: 14.5px; padding: 4px 0; transition: color .2s; }
.foot-col a:hover { color: var(--gold-2); }
.foot-base { display: flex; justify-content: space-between; margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--faint); font-size: 13px; flex-wrap: wrap; gap: 10px; }

/* ---- small screens ---- */
@media (max-width: 480px) {
  :root { --gutter: 18px; --nav-h: 60px; }
  .eyebrow { font-size: 10.5px; letter-spacing: .14em; }
  .nav-inner { height: 60px; }
  .brand { font-size: 17px; }
  .btn { font-size: 14px; padding: 11px 18px; }
  .hero-cta { gap: 10px; }
  .hero-cta .btn { flex: 1 1 auto; justify-content: center; }
}