/* ==================================================================
   AgentIQ — design system
   Charcoal ground, champagne gold as jewellery, architectural linework.
   Gold is never more than an accent: kickers, hairlines, one highlight
   per surface, a numeral. Headlines are off-white.
   ================================================================== */

:root{
  /* palette — exact, from the board */
  --gold:#EAD196;
  --bronze:#B78F4A;
  --charcoal:#1A1A1A;
  --slate:#666666;
  --offwhite:#F5F5F5;

  /* derived grounds */
  --bg:#141414;
  --bg-lift:#1A1A1A;
  --bg-panel:#1E1E1E;
  --glass:rgba(255,255,255,.026);
  --line:rgba(234,209,150,.14);
  --line-soft:rgba(255,255,255,.07);
  --tx:#F5F5F5;
  --tx2:#8E8E86;
  --tx3:#5F5F58;

  /* type */
  --disp:'Inter',system-ui,-apple-system,sans-serif;
  --body:'Inter',system-ui,-apple-system,sans-serif;
  --mono:'Montserrat',sans-serif;

  /* rhythm */
  --gut:clamp(20px,4vw,40px);
  --sec:clamp(88px,11vw,168px);
  --max:1240px;

  /* motion */
  --ease:cubic-bezier(.16,1,.3,1);
  --spring:cubic-bezier(.34,1.3,.44,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--tx);
  font-family:var(--body);font-weight:300;line-height:1.65;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:rgba(234,209,150,.24);color:#fff}

.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--gut)}
.sec{padding-block:var(--sec);position:relative}

/* ---------- type ---------- */
.kick{
  font-family:var(--mono);font-weight:500;font-size:11px;
  letter-spacing:.24em;text-transform:uppercase;color:var(--gold);
  display:flex;align-items:center;gap:12px;margin-bottom:22px;
}
.kick::before{content:"";width:26px;height:1px;background:var(--gold);flex:none;opacity:.7}

h1,h2,h3{font-family:var(--disp);font-weight:600;letter-spacing:-.022em;line-height:1.06}
h1{font-size:clamp(34px,5.2vw,68px);text-transform:uppercase}
h2{font-size:clamp(27px,3.9vw,50px);text-transform:uppercase;line-height:1.1}
h3{font-size:clamp(18px,1.6vw,23px);letter-spacing:-.01em;line-height:1.28;text-transform:none;font-weight:500}
.lede{font-size:clamp(16px,1.35vw,19px);color:var(--tx2);max-width:40ch;font-weight:300}
p{color:var(--tx2);max-width:62ch}
.gold{color:var(--gold)}

/* fine architectural rule */
.rule{width:64px;height:2px;background:var(--gold);margin:26px 0}

/* ---------- buttons ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;gap:11px;
  padding:15px 30px;border-radius:2px;overflow:hidden;
  font-family:var(--mono);font-weight:600;font-size:12.5px;
  letter-spacing:.14em;text-transform:uppercase;
  transition:transform .4s var(--spring),box-shadow .4s var(--ease);
  will-change:transform;
}
.btn-p{background:var(--gold);color:var(--charcoal)}
.btn-p::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.55) 48%,transparent 66%);
  transform:translateX(-120%);transition:transform .75s var(--ease);
}
.btn-p:hover::after{transform:translateX(120%)}
.btn-p:hover{box-shadow:0 12px 40px -12px rgba(234,209,150,.5)}
.btn-s{border:1px solid var(--line);color:var(--tx)}
.btn-s:hover{border-color:var(--gold);color:var(--gold)}
.btn:active{transform:scale(.985)}
.btn .ar{transition:transform .4s var(--spring)}
.btn:hover .ar{transform:translateX(4px)}

/* ---------- glass surface ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--line-soft);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-radius:3px;
}

/* ---------- reveal on scroll ---------- */
[data-rise]{opacity:0;transform:translate3d(0,26px,0);
  transition:opacity .9s var(--ease),transform .9s var(--ease)}
[data-rise].in{opacity:1;transform:none}

/* ---------- architectural background ---------- */
.arch{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.arch svg{position:absolute;inset:0;width:100%;height:100%}
.arch path,.arch line{stroke:var(--gold);fill:none;vector-effect:non-scaling-stroke}

/* chevrons — the board's official texture */
.chev{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    repeating-linear-gradient(135deg,transparent 0 74px,rgba(234,209,150,.055) 74px 75px),
    repeating-linear-gradient(45deg,transparent 0 74px,rgba(234,209,150,.055) 74px 75px);
}

/* ---------- nav ---------- */
#nav{
  position:fixed;inset:0 0 auto;z-index:200;
  transition:background .5s var(--ease),border-color .5s var(--ease),
             backdrop-filter .5s var(--ease),padding .5s var(--ease);
  border-bottom:1px solid transparent;padding-block:22px;
}
#nav.stuck{
  background:rgba(20,20,20,.82);
  backdrop-filter:blur(18px) saturate(1.2);-webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line);padding-block:13px;
}
#nav .wrap{display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:13px;flex:none}
.brand .mk{width:30px;height:30px;color:var(--gold);flex:none;display:block}
.brand .wm{font-family:var(--disp);font-weight:500;font-size:15px;letter-spacing:.2em;color:var(--tx)}
.brand .wm i{display:block;font-style:normal;font-family:var(--mono);font-weight:400;
  font-size:8px;letter-spacing:.19em;color:var(--tx3);margin-top:3px;text-transform:uppercase}
#nav menu{display:flex;gap:2px;list-style:none;margin-left:auto;position:relative}
#navmenu .mcta{display:none}
#nav menu a{
  display:block;padding:10px 15px;font-size:13px;color:var(--tx2);
  transition:color .3s var(--ease);position:relative;
}
#nav menu a:hover{color:var(--tx)}
#navline{position:absolute;bottom:2px;height:1px;background:var(--gold);
  transition:left .45s var(--ease),width .45s var(--ease),opacity .3s;opacity:0;pointer-events:none}
#nav .btn{padding:12px 22px;font-size:11.5px}
#burger{display:none;margin-left:auto;width:42px;height:42px;position:relative}
#burger i{position:absolute;left:11px;right:11px;height:1px;background:var(--tx);
  transition:transform .4s var(--ease),opacity .3s}
#burger i:nth-child(1){top:17px}#burger i:nth-child(2){bottom:17px}
#burger.on i:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
#burger.on i:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line-soft);padding-block:64px 44px;position:relative}
.fgrid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:44px;margin-bottom:52px}
footer h4{font-family:var(--mono);font-weight:500;font-size:10.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gold);margin-bottom:16px}
footer li{list-style:none;margin-bottom:9px}
footer li a{font-size:13.5px;color:var(--tx2);transition:color .3s}
footer li a:hover{color:var(--gold)}
.fbot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:26px;border-top:1px solid var(--line-soft);font-size:12px;color:var(--tx3)}

/* ---------- demo-data marker ---------- */
.demo{
  display:inline-block;font-family:var(--mono);font-weight:500;
  font-size:8px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--tx3);border:1px solid var(--line-soft);
  padding:2px 6px;border-radius:2px;margin-left:8px;vertical-align:middle;
}

/* ---------- responsive ---------- */
@media(max-width:1020px){
  .fgrid{grid-template-columns:1fr 1fr;gap:34px}
}
@media(max-width:860px){
  #nav menu{
    position:fixed;inset:0;flex-direction:column;justify-content:center;
    background:rgba(18,18,18,.97);backdrop-filter:blur(24px);
    gap:6px;margin:0;padding:0;
    opacity:0;pointer-events:none;transition:opacity .45s var(--ease);
  }
  #nav menu.open{opacity:1;pointer-events:auto}
  #nav menu a{font-size:23px;padding:15px 34px;text-align:center}
  #navline{display:none}
  #nav .btn{display:none}
  #navmenu .mcta{display:block;margin-top:26px;text-align:center}
  #navmenu .mcta a{
    display:inline-block;background:var(--gold);color:var(--charcoal);
    font-family:var(--mono);font-weight:600;font-size:13px;letter-spacing:.14em;
    text-transform:uppercase;padding:16px 34px;
  }
  #burger{display:block;z-index:2}
  .fgrid{grid-template-columns:1fr}
}

/* ---------- reduced motion ---------- */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;animation-iteration-count:1!important;
    transition-duration:.01ms!important;scroll-behavior:auto!important;
  }
  [data-rise]{opacity:1;transform:none}
}