/* ═══════════════════════════════════════════════════════════════
   revisatucambio.es — hoja de estilo común (landing + blog)
   Paleta "aceite ATF": azul acero de fondo + ámbar del aceite nuevo.
   ═══════════════════════════════════════════════════════════════ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
@media (min-width:768px){html{font-size:18.5px}}
@media (min-width:1280px){html{font-size:20px}}
@media (hover:none),(pointer:coarse),(max-width:767px){html{font-size:21px}}
:root{
  --bg:#080C12;--panel:#0E141C;--panel2:#131B25;--line:rgba(255,176,46,.14);
  --txt:#F1F5FA;--muted:#8698AE;
  --amb:#FFB02E;--amb2:#E89218;--red:#FF6B5B;--blue:#54A9FF;--ok:#3FD68A;
}
body{background:var(--bg);color:var(--txt);font-family:'Barlow',sans-serif;overflow-x:hidden}
a{text-decoration:none;color:inherit}
::selection{background:rgba(255,176,46,.3)}
img{max-width:100%}

/* ── Nav ── */
nav{position:sticky;top:0;z-index:500;display:flex;align-items:center;justify-content:space-between;padding:.8rem 5rem;background:rgba(8,12,18,.93);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid transparent;transition:border-color .3s}
nav.up{border-color:var(--line)}
.logo{display:flex;align-items:center;gap:.6rem}
.logo svg{height:38px;width:auto;display:block}
.logo b{font-family:'Barlow Condensed',sans-serif;font-size:1.25rem;font-weight:900;letter-spacing:.02em;text-transform:uppercase;line-height:.95}
.logo b i{font-style:normal;color:var(--amb);display:block;font-size:.62rem;font-weight:600;letter-spacing:.24em}
.nav-links{display:flex;gap:1.9rem;list-style:none}
.nav-links a{font-family:'Barlow Condensed',sans-serif;font-size:.9rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);position:relative;transition:color .2s}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:1px;background:var(--amb);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav-links a:hover{color:var(--txt)}.nav-links a:hover::after{transform:scaleX(1)}
.nav-cta{font-family:'Barlow Condensed',sans-serif;font-size:.9rem;font-weight:700;letter-spacing:.11em;text-transform:uppercase;color:var(--amb);border:1px solid rgba(255,176,46,.45);padding:.5rem 1.3rem;cursor:pointer;background:none;transition:all .25s}
.nav-cta:hover{background:var(--amb);color:#080C12}

section{padding:6rem 5rem;position:relative}

/* ── Botones ── */
.btnA{font-family:'Barlow Condensed',sans-serif;font-size:1rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;background:var(--amb);color:#0B0F16;padding:.85rem 2.2rem;border:none;cursor:pointer;display:inline-block;position:relative;overflow:hidden;transition:background .2s,transform .15s,box-shadow .2s}
.btnA::before{content:'';position:absolute;inset:0;background:linear-gradient(110deg,transparent 35%,rgba(255,255,255,.28) 50%,transparent 65%);transform:translateX(-100%);transition:transform .55s}
.btnA:hover{background:var(--amb2);transform:translateY(-2px);box-shadow:0 8px 28px rgba(255,176,46,.28)}.btnA:hover::before{transform:translateX(100%)}
.btnB{font-family:'Barlow Condensed',sans-serif;font-size:1rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;background:rgba(255,255,255,.05);color:var(--txt);padding:.85rem 2.2rem;cursor:pointer;display:inline-block;border:1px solid rgba(255,255,255,.18);transition:border-color .2s,background .2s}
.btnB:hover{border-color:var(--amb);background:rgba(255,176,46,.08)}

/* ── Titulares ── */
.s-eye{font-family:'Barlow Condensed',sans-serif;font-size:.72rem;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--amb);display:block;margin-bottom:.75rem}
.s-h{font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:clamp(2.2rem,5vw,4rem);line-height:.94;letter-spacing:-.01em;text-transform:uppercase;margin-bottom:.9rem}
.s-h em{font-style:normal;color:var(--amb)}
.s-p{color:var(--muted);font-weight:300;font-size:.95rem;line-height:1.7;max-width:560px}
.rv{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.rv.IN{opacity:1;transform:none}

/* ── Marquee ── */
.band{background:var(--amb);overflow:hidden;padding:.5rem 0}
.btrack{display:flex;width:max-content;animation:marq 26s linear infinite}
.bitem{font-family:'Barlow Condensed',sans-serif;font-size:1rem;letter-spacing:.1em;color:#0B0F16;padding:0 2.2rem;white-space:nowrap;display:flex;align-items:center;gap:2.2rem;font-weight:700}
.bitem::after{content:'●';opacity:.35;font-size:.5rem}
@keyframes marq{to{transform:translateX(-50%)}}

/* ── Toast ── */
#TOAST{position:fixed;bottom:2rem;left:50%;transform:translate(-50%,180%);background:#141C27;border-left:2px solid var(--amb);padding:.85rem 1.4rem;font-family:'Barlow Condensed',sans-serif;font-size:.92rem;font-weight:700;letter-spacing:.05em;z-index:9500;transition:transform .4s ease;box-shadow:0 10px 40px rgba(0,0,0,.55);max-width:min(430px,90vw)}
#TOAST.vis{transform:translate(-50%,0)}

/* ── WhatsApp flotante ── */
#WAF{position:fixed;right:1.2rem;bottom:1.2rem;z-index:600;width:56px;height:56px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(0,0,0,.4);transition:transform .2s}
#WAF:hover{transform:scale(1.08)}
#WAF svg{width:30px;height:30px;fill:#fff}

/* ── Footer ── */
footer{background:#050810;border-top:1px solid rgba(255,255,255,.05);padding:2.2rem 5rem;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}
.ft-links{display:flex;gap:1.6rem;flex-wrap:wrap}
.ft-links a{font-family:'Barlow Condensed',sans-serif;font-size:.72rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.ft-links a:hover{color:var(--amb)}
.ft-copy{font-size:.74rem;color:rgba(255,255,255,.25)}

@media(max-width:960px){
  nav{padding:.75rem 1.2rem}.nav-links{display:none}
  section{padding:4rem 1.2rem}
  footer{padding-left:1.2rem;padding-right:1.2rem;flex-direction:column;align-items:flex-start}
}

/* ═══════════════ BLOG / ARTÍCULOS ═══════════════ */
.art-hero{padding:5rem 5rem 3rem;background:linear-gradient(rgba(8,12,18,.9),rgba(8,12,18,.97)),url('fotos/taller-03.jpg') center/cover no-repeat;border-bottom:1px solid var(--line)}
.art-wrap{max-width:820px;margin:0 auto}
.art-cat{font-family:'Barlow Condensed',sans-serif;font-size:.7rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--amb);margin-bottom:.7rem;display:block}
.art-h1{font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:clamp(2rem,5vw,3.6rem);line-height:.98;text-transform:uppercase;margin-bottom:.9rem}
.art-h1 em{font-style:normal;color:var(--amb)}
.art-meta{color:var(--muted);font-size:.8rem;display:flex;gap:1.2rem;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.07);padding-top:.9rem;margin-top:1.2rem}
.art-lead{color:#c8d4e0;font-size:1.05rem;line-height:1.7;margin-top:1.1rem;font-weight:300}
.art-body{max-width:820px;margin:0 auto;padding:3.5rem 5rem 4rem}
.art-body h2{font-family:'Barlow Condensed',sans-serif;font-size:clamp(1.5rem,3.4vw,2.1rem);font-weight:900;text-transform:uppercase;letter-spacing:.01em;line-height:1.06;margin:2.6rem 0 .9rem;color:var(--txt)}
.art-body h2:first-child{margin-top:0}
.art-body h3{font-family:'Barlow Condensed',sans-serif;font-size:1.25rem;font-weight:800;letter-spacing:.02em;margin:1.9rem 0 .6rem;color:var(--amb)}
.art-body p{color:#c2cede;font-size:.95rem;line-height:1.85;margin-bottom:1.1rem}
.art-body p b,.art-body li b{color:var(--txt)}
.art-body ul,.art-body ol{margin:0 0 1.3rem 1.2rem;display:flex;flex-direction:column;gap:.5rem}
.art-body li{color:#c2cede;font-size:.93rem;line-height:1.7}
.art-body ul li::marker{color:var(--amb)}
.art-body ol li::marker{color:var(--amb);font-family:'Barlow Condensed',sans-serif;font-weight:700}
.art-body a{color:var(--amb);text-decoration:underline;text-underline-offset:3px}
.art-body img{width:100%;border:1px solid var(--line);margin:1.4rem 0}
.callout{background:var(--panel);border-left:3px solid var(--amb);padding:1.2rem 1.4rem;margin:1.8rem 0}
.callout.warn{border-left-color:var(--red)}
.callout.warn b{color:var(--red)}
.callout p:last-child{margin-bottom:0}
.callout-t{font-family:'Barlow Condensed',sans-serif;font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--amb);margin-bottom:.4rem}
.callout.warn .callout-t{color:var(--red)}
.tabla{width:100%;border-collapse:collapse;margin:1.6rem 0;font-size:.86rem}
.tabla th{font-family:'Barlow Condensed',sans-serif;font-size:.72rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--amb);text-align:left;padding:.6rem .8rem;border-bottom:1px solid var(--line)}
.tabla td{padding:.65rem .8rem;border-bottom:1px solid rgba(255,255,255,.05);color:#c2cede;vertical-align:top;line-height:1.6}
.tabla tr:hover td{background:rgba(255,176,46,.03)}
.tabla-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.art-cta{background:var(--panel);border:1px solid rgba(255,176,46,.25);border-top:2px solid var(--amb);padding:2rem;margin:2.6rem 0 0;text-align:center}
.art-cta h3{font-family:'Barlow Condensed',sans-serif;font-size:1.6rem;font-weight:900;text-transform:uppercase;line-height:1.02;margin-bottom:.6rem;color:var(--txt)}
.art-cta p{color:var(--muted);font-size:.88rem;line-height:1.65;margin-bottom:1.2rem}
.art-nav{max-width:820px;margin:0 auto;padding:0 5rem 4rem;display:flex;gap:1rem;flex-wrap:wrap;justify-content:space-between}
.art-nav a{font-family:'Barlow Condensed',sans-serif;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.art-nav a:hover{color:var(--amb)}
.rel{max-width:820px;margin:0 auto;padding:0 5rem 4rem}
.rel h4{font-family:'Barlow Condensed',sans-serif;font-size:.72rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:1rem}
.rel-grid{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.rel-c{background:var(--panel);border:1px solid rgba(255,255,255,.07);padding:1.1rem;transition:border-color .25s}
.rel-c:hover{border-color:rgba(255,176,46,.3)}
.rel-c b{font-family:'Barlow Condensed',sans-serif;font-size:1rem;font-weight:800;text-transform:uppercase;letter-spacing:.02em;display:block;line-height:1.15}
.rel-c span{color:var(--muted);font-size:.78rem;line-height:1.5;display:block;margin-top:.3rem}

/* Índice del blog */
.bl-hero{padding:5rem 5rem 3rem;text-align:center;background:linear-gradient(rgba(8,12,18,.88),rgba(8,12,18,.96)),url('fotos/taller-12.jpg') center/cover no-repeat}
.bl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;max-width:1200px;margin:0 auto}
.bl-card{background:var(--panel);border:1px solid rgba(255,255,255,.08);padding:1.6rem;display:flex;flex-direction:column;transition:border-color .25s,transform .25s}
.bl-card:hover{border-color:rgba(255,176,46,.32);transform:translateY(-3px)}
.bl-card .art-cat{margin-bottom:.5rem}
.bl-card h3{font-family:'Barlow Condensed',sans-serif;font-size:1.25rem;font-weight:800;text-transform:uppercase;line-height:1.08;margin-bottom:.5rem}
.bl-card p{color:var(--muted);font-size:.83rem;line-height:1.6;flex:1}
.bl-card .av-go{font-family:'Barlow Condensed',sans-serif;font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--amb);margin-top:1rem}

@media(max-width:960px){
  .art-hero,.bl-hero{padding:3.5rem 1.2rem 2.4rem}
  .art-body{padding:2.6rem 1.2rem 3rem}
  .art-nav,.rel{padding-left:1.2rem;padding-right:1.2rem}
  .bl-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
}