:root{
  --bg:#0d0d0d;
  --panel:#1a1a1a;
  --line:#2c2c2c;
  --red:#e31e24;
  --red-dim:#8f1216;
  --red-wash:rgba(227,30,36,0.14);
  --gold:#c9a227;
  --text:#f2ede1;
  --muted:#9a9490;
  --tag-bg:#242424;
}
html[data-theme="light"]{
  --bg:#f5f1e8;
  --panel:#ffffff;
  --line:#e4ddd0;
  --red:#c81920;
  --red-dim:#f1c6c7;
  --red-wash:rgba(200,25,32,0.08);
  --gold:#9c7a1a;
  --text:#1a1512;
  --muted:#736b60;
  --tag-bg:#f0ebe0;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Work Sans', sans-serif;
  -webkit-font-smoothing:antialiased;
  transition:background .2s ease, color .2s ease;
}
h1,h2,h3,.eyebrow,.division-tag,.btn{ font-family:'Oswald', sans-serif; text-transform:uppercase; letter-spacing:0.03em; }

.wrap{ max-width:1080px; margin:0 auto; padding:0 24px; }

/* ---- theme toggle ---- */
.theme-toggle{
  position:fixed; top:18px; right:18px; z-index:50;
  width:42px; height:42px; border-radius:50%;
  background:var(--panel); border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; color:var(--text);
}
.theme-toggle svg{ width:19px; height:19px; }
.theme-toggle .sun{ display:none; }
html[data-theme="light"] .theme-toggle .moon{ display:none; }
html[data-theme="light"] .theme-toggle .sun{ display:block; }

/* ---- header / logo ---- */
header{
  background:var(--tag-bg);
  padding:36px 24px 28px; text-align:center;
  border-bottom:1px solid var(--line);
}

/* LOGO PLACEHOLDER — reemplazar este bloque por:
   <img src="/img/logo-grupo-rt.png" alt="Grupo RT" style="height:64px;">
   cuando subas el archivo real. */
.logo-placeholder{
  display:inline-flex; align-items:center; justify-content:center;
  width:72px; height:72px; border-radius:50%;
  background:var(--bg); border:3px solid var(--red);
  color:var(--red); font-family:'Oswald',sans-serif; font-weight:700;
  font-size:22px; margin-bottom:14px;
}
.brand-word{ font-size:15px; letter-spacing:0.2em; color:var(--muted); }
.brand-word b{ color:var(--red); }

/* ---- hero ---- */
.hero{ text-align:center; padding:44px 24px 50px; }
.eyebrow{
  display:inline-block; font-size:12px; color:var(--gold);
  border:1px solid var(--gold); border-radius:999px;
  padding:6px 16px; margin-bottom:20px; letter-spacing:0.12em;
}
h1{ font-size:clamp(30px,6.5vw,46px); line-height:1.1; font-weight:700; }
h1 span{ color:var(--red); }
.hero p{ color:var(--muted); margin-top:16px; font-size:16px; max-width:520px; margin-left:auto; margin-right:auto; line-height:1.55; }

/* ---- pilares section ---- */
.pilares-head{ text-align:center; padding:10px 24px 40px; }
.pilares-head h2{ font-size:clamp(22px,4.5vw,32px); font-weight:700; }
.pilares-head h2 span{ color:var(--red); }
.pilares-head p{ color:var(--muted); margin-top:10px; font-size:14.5px; }

.divisions{ padding:0 0 60px; }
.division{ margin-bottom:52px; }
.division-head{ display:flex; align-items:baseline; gap:14px; margin-bottom:22px; padding:0 4px; }
.division-tag{ font-size:12px; color:var(--muted); letter-spacing:0.14em; }
.division-name{ font-size:20px; font-weight:700; color:var(--red); }
.division-line{ flex:1; height:1px; background:var(--line); }

.pillars{ display:grid; grid-template-columns:1fr; gap:16px; }
@media(min-width:640px){
  .pillars.grid-3{ grid-template-columns:1fr 1fr 1fr; }
}

.pillar-card{
  position:relative; overflow:hidden;
  display:block; text-decoration:none; color:inherit;
  background:var(--panel); border:1px solid var(--line); border-radius:16px;
  padding:28px 24px; transition:border-color .15s ease, transform .15s ease, box-shadow .15s ease;
  box-shadow:0 8px 24px rgba(201,162,39,0.10), 0 2px 8px rgba(201,162,39,0.06);
}
.pillar-card::before{
  content:''; position:absolute; top:0; left:0; width:100%; height:3px;
  background:var(--red); transform:scaleX(0); transform-origin:left;
  transition:transform .3s ease;
}
.pillar-card:hover::before{ transform:scaleX(1); }
.pillar-card:hover{ border-color:var(--red-dim); transform:translateY(-2px); box-shadow:0 14px 34px rgba(201,162,39,0.18), 0 4px 12px rgba(201,162,39,0.10); }
.pillar-card.hover-amber:hover{ border-color:#e69e28; }
.pillar-card.hover-blue:hover{ border-color:#3a82dc; }
.pillar-card.hover-green:hover{ border-color:#3caa6e; }
.pillar-card.hover-amber::before{ background:#e69e28; }
.pillar-card.hover-blue::before{ background:#3a82dc; }
.pillar-card.hover-green::before{ background:#3caa6e; }

.pillar-icon{
  width:52px; height:52px; border-radius:14px;
  background:var(--red-wash); border:1px solid var(--red-dim);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px;
}
.pillar-icon svg{ width:26px; height:26px; stroke:var(--red); }

.pillar-icon.amber{ background:rgba(230,158,40,0.14); border-color:rgba(230,158,40,0.45); }
.pillar-icon.amber svg{ stroke:#e69e28; }
.pillar-icon.blue{ background:rgba(58,130,220,0.14); border-color:rgba(58,130,220,0.45); }
.pillar-icon.blue svg{ stroke:#3a82dc; }
.pillar-icon.green{ background:rgba(60,170,110,0.14); border-color:rgba(60,170,110,0.45); }
.pillar-icon.green svg{ stroke:#3caa6e; }

.pillar-card h3{ font-size:19px; margin-bottom:8px; color:var(--text); }
.pillar-card p{ font-size:13.5px; color:var(--muted); line-height:1.5; margin-bottom:16px; }

.tag-row{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:14px; }
.tag{
  font-size:11.5px; color:var(--text); background:var(--tag-bg);
  border:1px solid var(--line); border-radius:999px; padding:5px 12px;
}

.pillar-card .go{ font-size:12px; color:var(--red); letter-spacing:0.08em; font-family:'Oswald',sans-serif; text-transform:uppercase; }

.pillar-card.wide{ display:block; }
.pillar-card.wide .tag-row{ margin-bottom:16px; }

footer{ background:var(--tag-bg); text-align:center; padding:40px 24px 50px; border-top:1px solid var(--line); }
footer .names{ color:var(--muted); font-size:13px; margin-bottom:6px; }
footer .names b{ color:var(--red); }
footer .copy{ color:var(--line); font-size:11px; margin-top:14px; }
footer .credit{ color:var(--muted); font-size:11px; margin-top:6px; }
footer .credit a{ color:var(--red); text-decoration:none; }
footer .credit a:hover{ text-decoration:underline; }

/* ---- whatsapp float button ---- */
.whatsapp-float{
  position:fixed; bottom:22px; right:22px; z-index:50;
  width:56px; height:56px; border-radius:50%;
  background:#25d366; display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 18px rgba(0,0,0,0.30);
  transition:transform .15s ease, box-shadow .15s ease;
}
.whatsapp-float:hover{ transform:translateY(-2px) scale(1.04); box-shadow:0 10px 24px rgba(0,0,0,0.36); }
.whatsapp-float svg{ width:28px; height:28px; fill:#fff; }