/* ═══════════════════════════════════════════════
   RAV Energy Consulting — Stylesheet global
   ravenergyconsulting.com
   ═══════════════════════════════════════════════ */

/* Tipografías alojadas en el propio servidor (sin conexiones a Google) — licencia SIL OFL 1.1 */
@font-face { font-family:'DM Sans'; font-style:normal; font-weight:100 1000; font-display:swap;
  src:url('fonts/dm-sans-latin-opsz-normal.woff2') format('woff2-variations'), url('fonts/dm-sans-latin-opsz-normal.woff2') format('woff2'); }
@font-face { font-family:'DM Sans'; font-style:italic; font-weight:100 1000; font-display:swap;
  src:url('fonts/dm-sans-latin-opsz-italic.woff2') format('woff2-variations'), url('fonts/dm-sans-latin-opsz-italic.woff2') format('woff2'); }
@font-face { font-family:'DM Mono'; font-style:normal; font-weight:400; font-display:swap; src:url('fonts/dm-mono-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family:'DM Mono'; font-style:normal; font-weight:500; font-display:swap; src:url('fonts/dm-mono-latin-500-normal.woff2') format('woff2'); }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:        #0B1E3D;
  --navy-mid:    #162B52;
  --navy-dark:   #081628;
  --blue:        #2563EB;
  --blue-light:  #3B82F6;
  --blue-muted:  rgba(37,99,235,0.12);
  --teal:        #0D9488;
  --teal-light:  #14B8A6;
  --teal-muted:  rgba(13,148,136,0.12);
  --amber:       #D97706;
  --amber-light: #F59E0B;
  --border:      rgba(255,255,255,0.08);
  --border-md:   rgba(255,255,255,0.14);
  --border-hi:   rgba(255,255,255,0.22);
  --surface:     rgba(255,255,255,0.04);
  --surface-hv:  rgba(255,255,255,0.07);
  --txt-1:       #F1F5F9;
  --txt-2:       #94A3B8;
  --txt-3:       #64748B;
  --font:        'DM Sans', system-ui, sans-serif;
  --mono:        'DM Mono', monospace;
  --r:           12px;
  --r-lg:        20px;
  --r-xl:        28px;
  --max:         1100px;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--navy);
  color: var(--txt-1);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ── */
.wrap  { max-width: var(--max); margin: 0 auto; padding: 0 2rem; }
.sec   { padding: 5rem 0; }
.sec-alt { background: var(--navy-mid); }

/* ── Nav ── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11,30,61,0.93);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0; height: 56px;
  display: flex; align-items: center;
}
.nav-inner {
  max-width: var(--max); margin: 0 auto; padding: 0 2rem;
  width: 100%; display: flex; align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-weight: 700; font-size: 1.15rem;
  color: var(--txt-1); text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.nav-brand span { color: var(--blue-light); font-weight: 700; }
.nav-brand em { font-style: normal; text-transform: none; font-weight: 400;
  font-size: 0.75em; letter-spacing: 0.01em; color: var(--txt-2);
  margin-left: 2px; }
.nav-links { display: flex; gap: 1.75rem; list-style: none; }
.nav-links a {
  font-size: 0.85rem; color: var(--txt-2);
  text-decoration: none; transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--txt-1); }
.nav-links a.active { color: var(--blue-light); }

/* Mobile nav */
.nav-toggle {
  display: none; background: none; border: none;
  cursor: pointer; color: var(--txt-2); padding: 4px;
}
@media (max-width: 760px) {
  .nav-links { display: none; flex-direction: column; gap: 0;
    position: absolute; top: 56px; left: 0; right: 0;
    background: var(--navy-dark); border-bottom: 1px solid var(--border);
    padding: 1rem 2rem; }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 0.5rem 0; border-bottom: 1px solid var(--border); }
  .nav-links li:last-child { border-bottom: none; }
  .nav-toggle { display: block; }
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
  background: var(--navy-dark);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
}
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; gap: 2rem; } }
.footer-brand { 
  font-weight: 700; font-size: 1.05rem; margin-bottom: 0.75rem;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.footer-brand span { color: var(--blue-light); }
.footer-brand em { font-style: normal; text-transform: none; font-weight: 400;
  font-size: 0.78em; letter-spacing: 0.01em; color: var(--txt-2); margin-left: 2px; }
.footer-desc { font-size: 0.875rem; color: var(--txt-2); line-height: 1.65; max-width: 320px; }
.footer-col h4 { font-size: 0.8rem; font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--txt-3); margin-bottom: 1rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a { font-size: 0.875rem; color: var(--txt-2); text-decoration: none; transition: color 0.2s; }
.footer-col a:hover { color: var(--txt-1); }
.footer-bottom {
  margin-top: 2.5rem; padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem;
  font-size: 0.8rem; color: var(--txt-3);
}
.footer-bottom a { color: var(--txt-3); text-decoration: none; }
.footer-bottom a:hover { color: var(--txt-2); }

/* ── Typography helpers ── */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 500; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--teal-light);
  background: var(--teal-muted);
  border: 1px solid rgba(13,148,136,0.25);
  border-radius: 100px; padding: 5px 14px;
  margin-bottom: 1.5rem;
}
.eyebrow::before {
  content: ''; width: 5px; height: 5px;
  background: var(--teal-light); border-radius: 50%;
}
.label {
  font-size: 11px; font-weight: 500; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--teal-light);
  margin-bottom: 0.6rem; display: block;
}
.h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 300; line-height: 1.15; letter-spacing: -0.03em;
  margin-bottom: 1.4rem;
}
.h1 strong { font-weight: 600; color: var(--blue-light); }
.h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 400; letter-spacing: -0.02em; line-height: 1.25;
  margin-bottom: 0.9rem;
}
.h2 strong { font-weight: 600; }
.h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; }
.lead { font-size: 1.05rem; color: var(--txt-2); line-height: 1.75; max-width: 620px; margin-bottom: 2.5rem; }
.muted { color: var(--txt-2); }
.mono { font-family: var(--mono); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 0.7rem 1.4rem; border-radius: var(--r);
  font-family: var(--font); font-size: 0.9rem; font-weight: 500;
  cursor: pointer; transition: all 0.2s; border: none;
  text-decoration: none; white-space: nowrap;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-light); transform: translateY(-1px); }
.btn-outline {
  background: transparent; color: var(--txt-1);
  border: 1px solid var(--border-md);
}
.btn-outline:hover { background: var(--surface-hv); }
.btn-teal { background: var(--teal); color: #fff; }
.btn-teal:hover { background: var(--teal-light); transform: translateY(-1px); }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.82rem; }
.btns { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* ── Cards ── */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 2rem;
  transition: background 0.2s, border-color 0.2s;
}
.card:hover { background: var(--surface-hv); border-color: var(--border-md); }
.card-grid { display: grid; gap: 1px; }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .card-grid-4, .card-grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .card-grid-4, .card-grid-3, .card-grid-2 { grid-template-columns: 1fr; } }

.card-grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }

/* Grid sin gaps (bloques unidos por bordes) */
.tile-grid {
  display: grid; gap: 1.5px;
  border: 1.5px solid var(--border); border-radius: var(--r-lg);
  overflow: hidden;
}
.tile { background: var(--surface); padding: 2rem 1.75rem; transition: background 0.15s; }
.tile:hover { background: var(--surface-hv); }

/* ── Stat cards ── */
.stats { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 2.5rem 0; }
.stat {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r); padding: 1rem 1.5rem;
  display: flex; flex-direction: column; align-items: flex-start;
}
.stat-val { font-size: 1.8rem; font-weight: 600; line-height: 1; color: var(--txt-1); }
.stat-lbl { font-size: 0.75rem; color: var(--txt-3); letter-spacing: 0.06em; text-transform: uppercase; margin-top: 4px; }

/* ── Dividers ── */
hr.div { border: none; border-top: 1px solid var(--border); }

/* ── CTA banner ── */
.cta-band {
  background: linear-gradient(135deg, rgba(37,99,235,0.08) 0%, rgba(13,148,136,0.06) 100%);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 4rem 0; text-align: center;
}
.cta-band .h2 { margin-bottom: 0.75rem; }
.cta-band p { color: var(--txt-2); max-width: 500px; margin: 0 auto 2rem; }

/* ── Badge/tag ── */
.badge {
  display: inline-block; font-size: 11px; font-weight: 500;
  padding: 3px 10px; border-radius: 100px; letter-spacing: 0.05em;
}
.badge-blue { background: var(--blue-muted); color: var(--blue-light); }
.badge-teal { background: var(--teal-muted); color: var(--teal-light); }
.badge-amber { background: rgba(217,119,6,0.15); color: var(--amber-light); }
.badge-new { background: rgba(13,148,136,0.2); color: var(--teal-light); border: 1px solid rgba(13,148,136,0.3); }

/* ── Misc ── */
.text-blue { color: var(--blue-light); }
.text-teal { color: var(--teal-light); }
.mono-val { font-family: var(--mono); font-size: 0.85rem; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
@media (max-width: 780px) { .two-col { grid-template-columns: 1fr; } }

/* ── Table ── */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 0.875rem; min-width: 500px; }
table.tbl thead { background: var(--surface); }
table.tbl th {
  padding: 0.7rem 1rem; text-align: left;
  font-size: 11px; font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--txt-3);
  border-bottom: 1px solid var(--border);
}
table.tbl td { padding: 0.85rem 1rem; border-bottom: 1px solid var(--border); color: var(--txt-2); }
table.tbl td:first-child { color: var(--txt-1); font-weight: 500; }
table.tbl tbody tr:last-child td { border-bottom: none; }
table.tbl tbody tr:hover { background: var(--surface); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 3px; }


/* Páginas legales */
.legal { max-width: 780px; }
.legal .updated { font-size: 0.82rem; color: var(--txt-3); margin-bottom: 2.5rem; }
.legal h2 { font-size: 1.15rem; font-weight: 600; color: var(--txt-1); margin: 2.5rem 0 0.9rem; }
.legal h3 { font-size: 0.98rem; font-weight: 600; color: var(--txt-1); margin: 1.5rem 0 0.6rem; }
.legal p, .legal li { color: var(--txt-2); line-height: 1.75; font-size: 0.95rem; }
.legal p { margin-bottom: 1rem; }
.legal ul { margin: 0 0 1rem 1.25rem; }
.legal li { margin-bottom: 0.4rem; }
.legal a { color: var(--teal-light); }
.legal strong { color: var(--txt-1); font-weight: 500; }
.legal .datos { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); padding: 1.25rem 1.5rem; margin-bottom: 1.5rem; }
.legal .datos p { margin-bottom: 0.35rem; font-size: 0.92rem; }
.legal .datos p:last-child { margin-bottom: 0; }
.legal table.tbl { width: 100%; margin-bottom: 1.25rem; font-size: 0.9rem; }
@media (max-width: 600px) { .legal .datos { padding: 1rem; } }
.form-check { display:flex; gap:10px; align-items:flex-start; font-size:0.82rem; color:var(--txt-2); line-height:1.55; }
.form-check input { margin-top:3px; width:16px; height:16px; flex:0 0 16px; accent-color: var(--teal-light); }
.form-check a { color: var(--txt-1); }

/* Artículos del blog */
.post { max-width: 760px; margin: 0 auto; }
.post-meta { display:flex; flex-wrap:wrap; gap:0.5rem; align-items:center; margin-bottom:1.5rem; }
.post-meta .when { font-size:0.8rem; color:var(--txt-3); }
.post-back { display:inline-block; font-size:0.85rem; color:var(--txt-2); text-decoration:none; margin-bottom:1.5rem; }
.post-back:hover { color:var(--txt-1); }
.post-title { font-size:clamp(1.8rem,4vw,2.6rem); font-weight:300; line-height:1.2; letter-spacing:-0.025em; margin-bottom:1.25rem; }
.post-title strong { font-weight:600; color:var(--blue-light); }
.post-intro { font-size:1.05rem; color:var(--txt-2); line-height:1.75; max-width:680px; }
.post p { color:var(--txt-2); font-size:0.95rem; line-height:1.8; margin-bottom:1.25rem; }
.post h2 { font-size:clamp(1.3rem,2.6vw,1.6rem); font-weight:400; letter-spacing:-0.015em; line-height:1.3; color:var(--txt-1); margin:2.75rem 0 1rem; }
.post h2:first-child { margin-top:0; }
.post h3 { font-size:1.1rem; font-weight:600; color:var(--txt-1); margin:2rem 0 0.9rem; }
.post strong { color:var(--txt-1); font-weight:600; }
.post a { color:var(--teal-light); }
.post ul { list-style:none; display:flex; flex-direction:column; gap:0.7rem; margin:0 0 1.5rem; padding-left:1rem; border-left:2px solid var(--border-md); }
.post ul li { font-size:0.92rem; color:var(--txt-2); line-height:1.7; }
.post ol { counter-reset:paso; list-style:none; display:flex; flex-direction:column; gap:0.8rem; margin:0 0 1.5rem; padding:0; }
.post ol li { counter-increment:paso; position:relative; padding-left:2.4rem; font-size:0.92rem; color:var(--txt-2); line-height:1.7; }
.post ol li::before { content:counter(paso); position:absolute; left:0; top:0.1rem; width:1.6rem; height:1.6rem; border-radius:50%;
  background:var(--blue-muted); color:var(--blue-light); font-size:0.78rem; font-weight:600; display:flex; align-items:center; justify-content:center; }
.post .tbl-wrap { margin:0.5rem 0 1rem; }
.post .tbl-wrap + p { font-size:0.82rem; color:var(--txt-3); line-height:1.65; }
.post table.tbl td strong { color:var(--txt-1); }
.post .formula { background:rgba(37,99,235,0.07); border:1px solid rgba(37,99,235,0.2); border-radius:var(--r); padding:1.1rem 1.4rem; margin:0 0 1.25rem;
  font-size:0.98rem; color:var(--txt-1); font-weight:500; line-height:1.6; }
.post .cta-box { background:rgba(13,148,136,0.07); border:1px solid rgba(13,148,136,0.2); border-radius:var(--r); padding:1.4rem 1.5rem; margin:2rem 0 1.5rem; }
.post .cta-box p { margin:0 0 1rem; color:var(--txt-1); }
.post .author { display:flex; gap:1rem; align-items:center; border-top:1px solid var(--border); padding-top:1.5rem; margin-top:2rem; }
.post .author .ini { flex:0 0 46px; height:46px; border-radius:50%; background:var(--blue-muted); color:var(--blue-light); font-weight:600; display:flex; align-items:center; justify-content:center; font-size:0.95rem; }
.post .author p { margin:0; font-size:0.85rem; line-height:1.5; }
.post .refs li { font-size:0.82rem; }
.post-more { max-width:760px; margin:3rem auto 0; border-top:1px solid var(--border); padding-top:2rem; }
.post-more h4 { font-size:11px; font-weight:500; letter-spacing:0.1em; text-transform:uppercase; color:var(--txt-3); margin-bottom:1rem; }
.post-more a { display:block; color:var(--txt-1); text-decoration:none; padding:0.6rem 0; border-bottom:1px solid var(--border); font-size:0.95rem; }
.post-more a:hover { color:var(--blue-light); }
/* Índice del blog */
.blog-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:1.25rem; }
.blog-card { display:flex; flex-direction:column; text-decoration:none; color:inherit; padding:1.75rem; }
.blog-card .post-meta { margin-bottom:1rem; }
.blog-card h2 { font-size:1.2rem; font-weight:500; line-height:1.35; color:var(--txt-1); margin-bottom:0.75rem; letter-spacing:-0.01em; }
.blog-card p { font-size:0.88rem; color:var(--txt-2); line-height:1.7; flex:1; margin-bottom:1.25rem; }
.blog-card .more { font-size:0.85rem; color:var(--blue-light); font-weight:500; }
.blog-card.feat { border-color:rgba(37,99,235,0.35); }
@media (max-width:600px) { .post .formula { font-size:0.9rem; } .blog-card { padding:1.4rem; } }
.post a.btn { color:#fff; text-decoration:none; }
.post a.btn-outline { color:var(--txt-1); }

/* Imágenes */
.img-band { position:relative; margin:0; border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--border); background:var(--navy-mid); }
.img-band img { display:block; width:100%; height:clamp(220px,34vw,440px); object-fit:cover; }
.img-band::after { content:''; position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(180deg, rgba(11,30,61,0) 50%, rgba(11,30,61,0.75) 100%); }
.img-band figcaption { position:absolute; left:1.5rem; bottom:1.2rem; z-index:1; font-size:0.8rem; letter-spacing:0.04em; color:var(--txt-1); opacity:0.9; }
.photo { margin:0.75rem 0 0; border-radius:var(--r); overflow:hidden; border:1px solid var(--border); background:var(--navy-mid); }
.photo img { display:block; width:100%; height:auto; aspect-ratio:4/3; object-fit:cover; }
.post-cover { max-width:860px; margin:0 auto 3rem; border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--border); }
.post-cover img { display:block; width:100%; height:auto; aspect-ratio:16/9; object-fit:cover; }
.blog-thumb { display:block; height:auto; width:calc(100% + 3.5rem); max-width:none; margin:-1.75rem -1.75rem 1.4rem; aspect-ratio:16/9; object-fit:cover;
  border-bottom:1px solid var(--border); border-radius:var(--r-lg) var(--r-lg) 0 0; }
@media (max-width:600px) { .blog-thumb { width:calc(100% + 2.8rem); margin:-1.4rem -1.4rem 1.2rem; } .img-band figcaption { left:1rem; bottom:0.9rem; } }

/* Columnas dobles en línea: una sola columna en móvil */
@media (max-width: 780px) {
  [style*="grid-template-columns:1fr 1fr;gap:3rem"] { grid-template-columns: 1fr !important; gap: 1.75rem !important; }
}

.sector-img { margin:-2.5rem -2.5rem 2rem; border-bottom:1px solid var(--border); background:var(--navy-mid); }
.sector-img img { display:block; width:100%; height:auto; aspect-ratio:3/1; object-fit:cover; }
@media (max-width:600px) { .sector-img { margin:-2.5rem -2.5rem 1.5rem; } .sector-img img { aspect-ratio:2/1; } }
.card-img { margin:1.5rem 0 0; border-radius:var(--r); overflow:hidden; border:1px solid var(--border); background:#fff; }
.card-img img { display:block; width:100%; height:auto; }
.card-img figcaption { font-size:0.78rem; color:var(--txt-3); padding:0.6rem 0.9rem; background:var(--surface); border-top:1px solid var(--border); }