/* rgnt — design system. Paleta puxada do fundo 3D (bronze/dourado escuro #594927). */
:root{
  --bg:#0a0806;              /* quase-preto quente */
  --bg-soft:#12100c;
  --ink:#f4ead9;            /* texto claro cor de creme */
  --ink-dim:#b9ab93;        /* texto secundário */
  --ink-faint:#7d7159;
  --gold:#e8b866;          /* dourado de destaque */
  --gold-bright:#ffd98a;
  --amber:#c8873a;
  --line:rgba(232,184,102,.14);
  --line-soft:rgba(232,184,102,.07);
  --card:rgba(24,20,14,.72);
  --card-solid:#15120c;
  --radius:16px;
  --maxw:1080px;
  --serif:"Times New Roman",Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
/* seleção só onde faz sentido (texto de conteúdo); UI decorativa não seleciona */
.no-sel{user-select:none;-webkit-user-select:none}

/* ---- fundo 3D fixo ---- */
#bg-stage{position:fixed;inset:0;z-index:0;pointer-events:none}
#bg-stage canvas{display:block;width:100%!important;height:100%!important}
/* véu que escurece o fundo sob o conteúdo pra dar contraste ao texto.
   Camada dupla: um degradê radial suave + um véu plano que garante legibilidade
   sem apagar o brilho do objeto nas bordas das seções. */
#bg-veil{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(ellipse 55% 42% at 50% 46%, rgba(10,8,6,.72) 0%, rgba(10,8,6,.30) 60%, transparent 100%),
    linear-gradient(to bottom, rgba(10,8,6,.55) 0%, rgba(10,8,6,.30) 22%, rgba(10,8,6,.30) 78%, rgba(10,8,6,.6) 100%);}

/* ---- layout base ---- */
.wrap{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{position:relative;z-index:2}
.eyebrow{font-family:var(--mono);font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);margin:0 0 18px}

/* ---- topbar ---- */
.topbar{position:fixed;top:0;left:0;right:0;z-index:30;display:flex;align-items:center;justify-content:space-between;
  padding:16px 28px;background:linear-gradient(to bottom,rgba(10,8,6,.92) 30%,rgba(10,8,6,.6) 70%,transparent);}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:22px;letter-spacing:.02em;color:var(--ink)}
.brand .mark{width:26px;height:26px;display:inline-block}
.brand .ver{font-family:var(--mono);font-size:10px;color:var(--ink-faint);margin-left:2px;align-self:flex-start;margin-top:2px}
.nav-cta{font-family:var(--sans);font-size:14px;font-weight:600;color:var(--bg);background:var(--gold);
  border:none;border-radius:999px;padding:9px 20px;cursor:pointer;transition:transform .15s,background .15s}
.nav-cta:hover{background:var(--gold-bright);transform:translateY(-1px)}

/* ---- hero ---- */
.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:120px 24px 80px}
.hero>*{position:relative;z-index:2}
/* scrim atrás do texto do hero pra garantir contraste sobre o brilho do objeto */
.hero::before{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:min(820px,96vw);height:min(620px,80vh);z-index:1;pointer-events:none;
  background:radial-gradient(ellipse 62% 54% at 50% 50%, rgba(8,6,4,.7), rgba(8,6,4,.4) 55%, transparent 78%);filter:blur(10px)}
.hero .kicker{font-family:var(--mono);font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:26px}
.hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(40px,7vw,82px);line-height:1.02;letter-spacing:-.01em;margin:0 0 24px;
  background:linear-gradient(180deg,#fff6e6 0%,#e8b866 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{max-width:620px;font-size:clamp(17px,2.2vw,21px);color:var(--ink-dim);margin:0 auto 40px;text-shadow:0 2px 12px rgba(6,4,2,.7)}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.btn{font-family:var(--sans);font-size:16px;font-weight:600;border-radius:999px;padding:14px 30px;cursor:pointer;transition:transform .15s,background .15s,border-color .15s;border:1px solid transparent}
.btn-primary{background:var(--gold);color:#1a1206}
.btn-primary:hover{background:var(--gold-bright);transform:translateY(-2px)}
.btn-ghost{background:rgba(232,184,102,.06);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-bright)}
.scroll-hint{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--ink-faint);animation:bob 2.4s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0);opacity:.5}50%{transform:translate(-50%,6px);opacity:1}}

/* ---- seção de argumento ---- */
.arg{padding:100px 0;border-top:1px solid var(--line-soft)}
.arg-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:center}
.arg.rev .arg-grid{direction:rtl}.arg.rev .arg-grid>*{direction:ltr}
.arg-num{font-family:var(--mono);font-size:13px;color:var(--gold);letter-spacing:.15em;margin-bottom:16px}
.arg h2{font-family:var(--serif);font-weight:400;font-size:clamp(30px,4.2vw,46px);line-height:1.08;letter-spacing:-.01em;margin:0 0 18px;color:var(--ink)}
.arg p{font-size:18px;color:var(--ink-dim);max-width:44ch;margin:0}
.arg .demo{min-height:340px}
@media(max-width:820px){
  .arg-grid{grid-template-columns:1fr;gap:32px}
  .arg.rev .arg-grid{direction:ltr}
  .arg{padding:64px 0}
}

/* ---- fecho ---- */
.close{padding:140px 0 120px;text-align:center}
.close h2{font-family:var(--serif);font-weight:400;font-size:clamp(34px,6vw,64px);line-height:1.08;margin:0 0 8px;
  background:linear-gradient(180deg,#fff6e6,#e8b866);-webkit-background-clip:text;background-clip:text;color:transparent}
.close .governance{font-family:var(--serif);font-style:italic;font-size:clamp(20px,3vw,28px);color:var(--gold);margin:0 0 44px}
footer{padding:40px 24px;text-align:center;color:var(--ink-faint);font-family:var(--mono);font-size:12px;border-top:1px solid var(--line-soft);position:relative;z-index:2}

/* ---- loading do fundo ---- */
#bg-fallback{position:fixed;inset:0;z-index:0;background:radial-gradient(circle at 50% 45%,#3a2c14 0%,#12100c 55%,#0a0806 100%)}

/* ---- white-label title-swap (arg 8) ---- */
.swap{color:var(--gold-bright);transition:opacity .25s ease;display:inline-block;font-style:italic}
.wl{display:flex;justify-content:center;align-items:center;min-height:340px}
.wl-window{width:100%;max-width:440px;background:#15120c;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 30px 70px -24px rgba(0,0,0,.75)}
.wl-topbar{height:34px;display:flex;align-items:center;gap:7px;padding:0 14px;background:#1c1710;border-bottom:1px solid var(--line-soft)}
.wl-dot{width:11px;height:11px;border-radius:50%;background:#3a3226}
.wl-screen{padding:56px 32px;text-align:center;background:radial-gradient(ellipse at 50% 30%,rgba(232,184,102,.08),transparent 70%)}
.wl-logo{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:14px}
.wl-logo img{width:44px;height:44px;border-radius:10px}
.wl-name{font-family:var(--serif);font-size:30px;color:var(--ink);transition:opacity .25s ease}
.wl-tag{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--ink-faint);text-transform:uppercase}