/* ============================================================
   RIA Drivecore · Introducción — presentación comercial
   Artefactos SVG animados por página (estética dark RIA)
   ============================================================ */

:root{
  --bg:#0b0a14; --bg2:#100f1e; --bg3:#0d0c1a;
  --gold:#c8860a; --gold-hi:#ef9f27; --gold-lo:#7a5008;
  --blue:#4a8fd4; --purple:#7f77dd; --green:#10b981; --cyan:#06b6d4; --orange:#f97316;
  --fiat-red:#ff1430; --it-green:#009246; --it-white:#f0ece0;
  --white:#f0ece0; --muted:#8a8478; --muted-2:#6c6759;
  --border:rgba(200,134,10,0.14); --border-2:rgba(255,255,255,0.06); --border-strong:rgba(255,255,255,0.14);
}
*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; width:100%; height:100%; background:var(--bg); color:var(--white);
  font-family:'Saira',system-ui,-apple-system,sans-serif; font-weight:300; -webkit-font-smoothing:antialiased; overflow:hidden; }

body::before{ content:''; position:fixed; inset:0; z-index:1; pointer-events:none; opacity:.025;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='320' height='320'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0.9 0 0 0 0 0.85 0 0 0 0 0.7 0 0 0 0.6 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
body::after{ content:''; position:fixed; inset:0; z-index:1; pointer-events:none;
  background:radial-gradient(ellipse 1200px 600px at 18% -5%, rgba(200,134,10,.06), transparent 60%),
    radial-gradient(ellipse 900px 700px at 92% 108%, rgba(74,143,212,.05), transparent 65%); }

.app{ position:relative; z-index:2; width:100%; height:100%; display:flex; flex-direction:column; }

/* ── TOPBAR ── */
.topbar{ display:flex; align-items:center; justify-content:space-between; padding:15px 40px;
  border-bottom:1px solid var(--border-2); background:linear-gradient(180deg,rgba(11,10,20,.85),rgba(11,10,20,.4)); backdrop-filter:blur(10px); }
.brand-left,.brand-right{ display:flex; align-items:center; gap:14px; }
.brand-ria{ display:flex; align-items:center; gap:10px; font-family:'DM Mono',monospace; font-size:11px; text-transform:uppercase;
  letter-spacing:.18em; color:var(--muted); text-decoration:none; transition:color .22s; }
.brand-ria:hover{ color:var(--gold-hi); }
.brand-ria .eclipse{ width:22px; height:22px; opacity:.9; }
.topbar-center{ font-family:'DM Mono',monospace; font-size:10px; text-transform:uppercase; letter-spacing:.3em; color:var(--muted); }
.topbar-link{ font-family:'DM Mono',monospace; font-size:10.5px; text-transform:uppercase; letter-spacing:.14em; color:var(--muted); text-decoration:none; transition:color .2s; white-space:nowrap; }
.topbar-link:hover{ color:var(--gold-hi); }
.brand-word{ font-family:'Saira',sans-serif; font-weight:600; font-size:15px; letter-spacing:.04em; color:var(--white); display:flex; align-items:center; gap:8px; }
.brand-word .corona{ width:16px; height:16px; }

/* ── STAGE / SLIDES ── */
.stage{ position:relative; flex:1; overflow:hidden; }
.slides{ position:relative; width:100%; height:100%; }
.slide{ position:absolute; inset:0; display:flex; align-items:center; padding:40px 64px; opacity:0; pointer-events:none;
  transform:translateX(38px); transition:opacity .5s ease, transform .7s cubic-bezier(.22,1,.36,1); overflow:hidden; }
.slide.active{ opacity:1; pointer-events:auto; transform:translateX(0); }

.eyebrow{ font-family:'DM Mono',monospace; font-size:10px; text-transform:uppercase; letter-spacing:.38em; color:var(--gold-hi);
  margin:0 0 18px; display:flex; align-items:center; gap:12px; }
.eyebrow::before{ content:''; width:22px; height:1px; background:var(--gold-hi); display:inline-block; }
h1.t{ font-family:'Saira',sans-serif; font-weight:500; font-size:clamp(30px,3.4vw,52px); line-height:1.04; letter-spacing:-.015em; margin:0 0 18px; color:var(--white); }
h1.t em{ font-style:normal; color:var(--gold-hi); font-weight:600; }
.sub{ font-size:clamp(14px,1.05vw,17px); font-weight:300; line-height:1.55; color:var(--muted); margin:0 0 22px; max-width:46ch; }
.sub b{ color:var(--white); font-weight:400; }
.vlist{ list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:11px; }
.vlist li{ display:flex; align-items:flex-start; gap:12px; font-size:clamp(13px,.95vw,15.5px); line-height:1.5; color:var(--white); font-weight:300; }
.vlist li::before{ content:''; flex-shrink:0; width:6px; height:6px; margin-top:7px; border-radius:50%; background:var(--gold); box-shadow:0 0 0 3px rgba(200,134,10,.12); }
.vlist li b{ font-weight:500; color:var(--gold-hi); }
.chips{ display:flex; gap:9px; flex-wrap:wrap; margin-top:22px; }
.chip{ font-family:'DM Mono',monospace; font-size:10px; letter-spacing:.08em; text-transform:uppercase; color:var(--white);
  border:1px solid var(--border-strong); border-radius:20px; padding:7px 13px; }
.chip.soft{ color:var(--muted); border-style:dashed; }

/* ── CONTENT: texto | artefacto ── */
.cap{ display:grid; grid-template-columns:1fr 1.05fr; gap:56px; align-items:center; width:100%; max-width:1240px; margin:0 auto; }
.cap.flip .cap-text{ order:2; }
.cap-text{ display:flex; flex-direction:column; justify-content:center; min-width:0; }
.cap-fig{ display:flex; align-items:center; justify-content:center; min-width:0; height:100%; }
.artifact{ width:100%; max-width:640px; }
.artifact svg{ width:100%; height:auto; display:block; overflow:visible; }
.kicker{ font-family:'DM Mono',monospace; font-size:11px; letter-spacing:.06em; color:var(--gold-hi); margin-top:20px; }
.kicker span{ color:var(--muted); }

/* ── COVER ── */
.cover{ justify-content:center; }
.cover-wrap{ max-width:1080px; width:100%; margin:0 auto; display:grid; grid-template-columns:1.05fr .95fr; gap:48px; align-items:center; }
.cover-art{ width:100%; }
.cover-eyebrow{ font-family:'DM Mono',monospace; font-size:10.5px; text-transform:uppercase; letter-spacing:.3em; color:var(--muted); display:flex; align-items:center; gap:10px; margin-bottom:20px; }
.cover-eyebrow .dot{ width:3px; height:3px; border-radius:50%; background:var(--gold-hi); }
.cover h1{ font-family:'Saira',sans-serif; font-weight:600; font-size:clamp(38px,4.6vw,68px); line-height:1; letter-spacing:-.02em; margin:0 0 20px; color:var(--white); }
.cover h1 .accent{ color:var(--gold-hi); }
.cover-rule{ width:60px; height:2px; background:var(--gold); margin:0 0 20px; }
.cover-sub{ font-size:clamp(14px,1.1vw,18px); font-weight:300; line-height:1.5; color:var(--muted); margin:0 0 28px; max-width:44ch; }
.cover-cta{ display:flex; gap:12px; flex-wrap:wrap; }
.cover-meta{ display:flex; align-items:center; gap:12px; margin-top:26px; font-family:'DM Mono',monospace; font-size:10px; text-transform:uppercase; letter-spacing:.14em; color:var(--muted-2); }
.cover-meta .sep-dot{ width:3px; height:3px; border-radius:50%; background:var(--muted-2); }
.cover-art-wrap{ display:flex; flex-direction:column; align-items:center; gap:20px; }
.cover-start{ align-self:center; }

/* ── BOTONES ── */
.btn{ display:inline-flex; align-items:center; gap:9px; font-family:'DM Mono',monospace; font-size:12px; letter-spacing:.06em; text-transform:uppercase;
  color:var(--white); text-decoration:none; border:1px solid var(--border-strong); border-radius:10px; padding:12px 18px; cursor:pointer;
  background:rgba(255,255,255,.02); transition:border-color .22s, color .22s, background .22s; }
.btn:hover{ border-color:var(--gold-hi); color:var(--gold-hi); }
.btn.primary{ background:linear-gradient(180deg, var(--gold-hi), var(--gold)); color:#1a1408; border-color:transparent; font-weight:500; }
.btn.primary:hover{ color:#1a1408; filter:brightness(1.06); }
.btn .icon{ width:16px; height:16px; fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }

/* ── CHAPTER / DIVIDER ── */
.divider{ justify-content:flex-start; }
.divider-inner{ max-width:1000px; margin:0 auto; width:100%; display:grid; grid-template-columns:1fr .9fr; gap:48px; align-items:center; }
.divider .num{ font-family:'Saira',sans-serif; font-weight:300; font-size:clamp(40px,6vw,88px); color:var(--gold-hi); line-height:1; opacity:.85; }
.divider h1{ font-family:'Saira',sans-serif; font-weight:600; font-size:clamp(34px,4.4vw,60px); color:var(--white); letter-spacing:-.02em; line-height:1.04; margin:6px 0 14px; }
.divider .rule{ width:60px; height:2px; background:var(--gold); margin:0 0 16px; }

/* ── CLOSING ── */
.closing{ justify-content:center; text-align:center; }
.closing-wrap{ max-width:900px; margin:0 auto; display:flex; flex-direction:column; align-items:center; }
.closing h1{ font-family:'Saira',sans-serif; font-weight:600; font-size:clamp(40px,5vw,76px); line-height:1.02; letter-spacing:-.02em; margin:26px 0 18px; }
.closing h1 .accent{ color:var(--gold-hi); }
.closing .sub{ max-width:56ch; text-align:center; }
.closing .cover-cta{ justify-content:center; }

/* ── FOOTER NAV ── */
.footer{ display:flex; align-items:center; justify-content:space-between; padding:14px 40px; border-top:1px solid var(--border-2);
  background:linear-gradient(0deg,rgba(11,10,20,.85),rgba(11,10,20,.35)); }
.progress{ display:flex; gap:7px; align-items:center; }
.progress .dot{ width:7px; height:7px; border-radius:50%; border:0; padding:0; background:var(--border-strong); cursor:pointer; transition:background .25s, transform .25s; }
.progress .dot.visited{ background:var(--muted); }
.progress .dot.active{ background:var(--gold-hi); transform:scale(1.5); }
.nav-right{ display:flex; align-items:center; gap:16px; }
.counter{ font-family:'DM Mono',monospace; font-size:11px; letter-spacing:.14em; color:var(--muted); }
.counter b{ color:var(--gold-hi); font-weight:500; }
.nav-btns{ display:flex; gap:8px; }
.nav-btns button{ width:34px; height:34px; border-radius:9px; border:1px solid var(--border-strong); background:rgba(255,255,255,.02); color:var(--white);
  cursor:pointer; display:flex; align-items:center; justify-content:center; transition:border-color .2s, color .2s, opacity .2s; }
.nav-btns button:hover:not(:disabled){ border-color:var(--gold-hi); color:var(--gold-hi); }
.nav-btns button:disabled{ opacity:.3; cursor:default; }

/* ── RESPONSIVE ── */
@media (max-width:980px){
  .slide{ padding:26px 22px 40px; overflow-y:auto; align-items:flex-start; }
  .cap,.cover-wrap,.divider-inner{ grid-template-columns:1fr; gap:26px; }
  .cap.flip .cap-text{ order:0; }
  .cover-art-wrap,.artifact{ max-width:460px; margin:0 auto; order:2; }
  .cover h1{ font-size:clamp(26px,7.4vw,40px); line-height:1.05; }
  .closing h1{ font-size:clamp(28px,7.6vw,44px); }
  h1.t{ font-size:clamp(26px,6.6vw,40px); }
  .cover-eyebrow{ font-size:9px; letter-spacing:.12em; flex-wrap:wrap; }
  /* Cover en mobile: sin scroll, animación de fondo abajo + texto encima */
  .slide.cover{ overflow:hidden; align-items:stretch; }
  .slide.cover .cover-wrap{ position:relative; display:block; height:100%; }
  .slide.cover .cover-text{ position:relative; z-index:2; }
  .slide.cover .cover-art-wrap{ position:absolute; left:50%; bottom:-7%; transform:translateX(-50%); width:132%; max-width:none; margin:0; opacity:.4; z-index:1; }
  .slide.cover .cover-start{ display:none; }
  .slide.cover .cover-meta{ position:relative; z-index:2; }
  .topbar{ padding:12px 18px; } .topbar-center{ display:none; } .brand-ria span{ display:none; }
  .footer{ padding:11px 18px; }
}
@media (prefers-reduced-motion: reduce){ .artifact svg *{ animation:none!important; } }