/* ============================================================
   COLUMBA TECHNOLOGY — Landing
   Identidad: dirección "Constelación" (cósmica · premium)
   ============================================================ */
@font-face{
  font-family:"Columba";
  src:url("columba-font.woff2") format("woff2");
  font-weight:100 900;font-style:normal;font-display:swap;
}

:root{
  /* Espacio / neutros */
  --space-950:#05070f;
  --space-900:#080b16;
  --space-850:#0a0e1a;
  --space-800:#0e1322;
  --space-750:#121829;
  --space-700:#161d31;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.05);

  /* Tarjetas BLANCAS sobre el cielo oscuro */
  --panel:#ffffff;
  --panel-strong:#f1f5fc;

  /* Azul eléctrico + cian */
  --blue:#2d6bff;
  --blue-bright:#3d7bff;
  --blue-deep:#10245e;
  --cyan:#5bd4ff;
  --cyan-soft:#9ee6ff;

  /* Tinta */
  --ink:#ffffff;
  --mist:#ffffff;
  --muted:#c2cadd;
  --muted-2:#8b95ad;

  --font:"Columba",-apple-system,system-ui,sans-serif;
  --mono:"Space Mono","SFMono-Regular",ui-monospace,monospace;

  --maxw:1240px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box;}
/* Visualmente oculto pero accesible para lectores de pantalla y crawlers (SEO/IA) */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--space-950);color:var(--mist);
  font-family:var(--font);font-weight:400;line-height:1.5;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
::selection{background:var(--blue);color:#fff;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
button{font-family:inherit;cursor:pointer;}

/* ---------- Capas de fondo cósmico ---------- */
/* Fondo de shader animado (aurora, Three.js) — capa más atrás */
#shader{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;overflow:hidden;}
#shader canvas{display:block;width:100%!important;height:100%!important;}
/* Canvas animado de estrellas + constelaciones (encima del shader) */
#sky{position:fixed;inset:0;z-index:1;pointer-events:none;display:block;}
/* Brillos de marca (azul + cian) por encima del cielo, debajo del contenido */
.glowfield{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(60vw 60vw at 82% -12%, #2d6bff22, transparent 60%),
    radial-gradient(55vw 55vw at 4% 26%, #5bd4ff14, transparent 60%),
    radial-gradient(50vw 50vw at 50% 120%, #10245e2e, transparent 60%);
}
/* Viñeta sutil para enfocar el centro */
.vignette{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 30%, transparent 55%, #05070f 100%);}

.wrap{position:relative;z-index:2;}

/* ---------- Tipografía utilitaria ---------- */
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--cyan);display:inline-flex;align-items:center;gap:10px;}
.kicker::before{content:"";width:24px;height:1px;background:var(--cyan);opacity:.6;}
.idx{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--muted-2);}
.h-sec{font-size:clamp(32px,4.6vw,56px);line-height:1.04;font-weight:600;
  color:var(--ink);letter-spacing:-.02em;margin:18px 0 0;text-wrap:balance;}
.h-sec em{font-style:normal;color:var(--cyan);}
.lead{font-size:clamp(16px,1.5vw,19px);color:var(--mist);max-width:60ch;margin:18px 0 0;line-height:1.6;}

.section{max-width:var(--maxw);margin:0 auto;padding:120px 40px;position:relative;}
.divider{max-width:var(--maxw);margin:0 auto;height:1px;background:var(--line);}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;
  gap:24px;margin-bottom:64px;flex-wrap:wrap;}
#capacidades .sec-head{flex-direction:column;align-items:center;text-align:center;}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:14px;
  padding:13px 24px;border-radius:11px;border:1px solid transparent;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 12px 30px -12px #2d6bffcc;}
.btn-primary:hover{background:var(--blue-bright);box-shadow:0 18px 40px -12px #2d6bffdd;}
.btn-ghost{border-color:var(--line);color:var(--mist);background:rgba(255,255,255,.02);}
.btn-ghost:hover{border-color:#ffffff26;color:#fff;}
.btn svg{width:16px;height:16px;}

/* ---------- Iconos sociales (header + footer) ---------- */
.social-ico{width:38px;height:38px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--mist);background:rgba(255,255,255,.035);
  transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);}
.social-ico svg{width:17px;height:17px;display:block;}
.social-ico:hover{color:#fff;border-color:var(--blue-bright);background:rgba(45,107,255,.16);
  transform:translateY(-2px);box-shadow:0 10px 22px -10px #2d6bffcc;}

/* ---------- NAV ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 40px;backdrop-filter:blur(14px);
  background:linear-gradient(rgba(5,7,15,.7),rgba(10,14,26,.25));
  border-bottom:1px solid transparent;transition:border-color .3s var(--ease),background .3s var(--ease);}
.nav.scrolled{border-bottom-color:var(--line-soft);background:linear-gradient(rgba(5,7,15,.92),rgba(8,11,22,.78));}
.nav-brand{display:flex;align-items:center;gap:12px;}
.nav-brand img{width:30px;height:30px;object-fit:contain;}
.nav-brand b{font-weight:600;letter-spacing:.16em;font-size:16px;color:var(--ink);line-height:1.1;}
.nav-brand span{font-family:var(--mono);font-size:15px;letter-spacing:.24em;color:var(--muted);}
.nav-menu{display:flex;align-items:center;gap:24px;}
.nav-links{display:flex;gap:28px;align-items:center;}
.nav-links a{font-family:var(--mono);font-size:13px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);transition:color .25s var(--ease);}
.nav-links a:hover{color:var(--cyan);}
.nav-social{display:flex;gap:8px;align-items:center;}
.nav-social .social-ico{width:34px;height:34px;border-radius:9px;}
.nav-social .social-ico svg{width:15px;height:15px;}
.nav-cta{background:var(--blue);color:#fff;font-family:var(--font);font-weight:600;
  font-size:14px;letter-spacing:0;text-transform:none;padding:10px 20px;border-radius:9px;
  transition:background .25s var(--ease);}
.nav-cta:hover{background:var(--blue-bright);color:#fff;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;cursor:pointer;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--ink);
  align-items:center;justify-content:center;
  transition:border-color .25s var(--ease),background .25s var(--ease);}
.nav-toggle:hover{border-color:var(--blue-bright);background:rgba(45,107,255,.14);}
.nav-toggle svg{width:22px;height:22px;}
.nav-toggle .ico-close{display:none;}
.nav.open .nav-toggle .ico-open{display:none;}
.nav.open .nav-toggle .ico-close{display:block;}

/* ---------- HERO ---------- */
.hero{min-height:100vh;display:flex;flex-direction:column;align-items:center;
  justify-content:center;text-align:center;padding:150px 24px 90px;position:relative;}
.hero-mark{width:min(300px,60vw);margin:0 auto 30px;
  filter:drop-shadow(0 0 80px #2d6bff7a);animation:rise 1.4s var(--ease) both;}
@keyframes rise{from{opacity:0;transform:translateY(30px) scale(.94);}to{opacity:1;transform:none;}}
@keyframes float{0%,100%{transform:translateY(0);}50%{transform:translateY(-14px);}}
.badge{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11px;
  letter-spacing:.16em;color:var(--cyan);border:1px solid var(--line);border-radius:99px;
  padding:8px 16px;text-transform:uppercase;background:rgba(91,212,255,.04);}
.badge .pulse{width:7px;height:7px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);animation:pulse 2.4s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.4;transform:scale(.7);}}
.hero h1{font-size:clamp(40px,7vw,86px);font-weight:700;letter-spacing:-.035em;
  color:var(--ink);line-height:1;margin:26px auto 0;max-width:16ch;}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--cyan),var(--blue-bright));
  -webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-tag{font-size:clamp(17px,1.9vw,21px);color:var(--mist);margin:26px auto 0;
  max-width:54ch;line-height:1.55;}
.hero-cta{display:flex;gap:14px;justify-content:center;margin-top:38px;flex-wrap:wrap;}
.scrollcue{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);
  font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--muted-2);
  display:flex;flex-direction:column;align-items:center;gap:10px;}
.scrollcue .bar{width:1px;height:42px;background:linear-gradient(var(--cyan),transparent);
  animation:cue 2.2s ease-in-out infinite;transform-origin:top;}
@keyframes cue{0%,100%{transform:scaleY(.4);opacity:.5;}50%{transform:scaleY(1);opacity:1;}}

/* ---------- STATS ---------- */
.stats{max-width:var(--maxw);margin:0 auto;padding:0 40px;}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat{padding:36px 32px;text-align:center;position:relative;overflow:hidden;
  background:var(--panel);border:1px solid var(--card-line);border-radius:18px;
  box-shadow:0 18px 40px -22px rgba(5,10,30,.55);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);}
.stat::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.22;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220' viewBox='0 0 220 220'><g stroke='%232d6bff' stroke-width='0.8' fill='none' opacity='0.75' stroke-linecap='round'><path d='M18 32 L62 58 L98 28 L150 50 L196 22'/><path d='M62 58 L86 110 L140 134'/><path d='M30 156 L78 178 L122 158 L170 196'/><path d='M196 22 L210 78 L168 108'/><path d='M86 110 L122 158'/></g><g fill='%235bd4ff'><circle cx='18' cy='32' r='1.6'/><circle cx='62' cy='58' r='2'/><circle cx='98' cy='28' r='1.6'/><circle cx='150' cy='50' r='1.8'/><circle cx='196' cy='22' r='1.6'/><circle cx='86' cy='110' r='2'/><circle cx='140' cy='134' r='1.6'/><circle cx='30' cy='156' r='1.6'/><circle cx='78' cy='178' r='1.8'/><circle cx='122' cy='158' r='2'/><circle cx='170' cy='196' r='1.6'/><circle cx='210' cy='78' r='1.6'/><circle cx='168' cy='108' r='1.8'/></g><g fill='%23ffffff' opacity='0.85'><circle cx='62' cy='58' r='0.6'/><circle cx='86' cy='110' r='0.6'/><circle cx='122' cy='158' r='0.6'/></g></svg>");
  background-size:220px 220px;
  -webkit-mask-image:radial-gradient(120% 110% at 50% 50%, rgba(0,0,0,1) 0%, rgba(0,0,0,.7) 55%, rgba(0,0,0,.3) 85%, rgba(0,0,0,0) 100%);
          mask-image:radial-gradient(120% 110% at 50% 50%, rgba(0,0,0,1) 0%, rgba(0,0,0,.7) 55%, rgba(0,0,0,.3) 85%, rgba(0,0,0,0) 100%);}
.stat>*:not(.card-stars-canvas){position:relative;z-index:2;}
.stat:hover{transform:translateY(-3px);border-color:#cfd8ea;box-shadow:0 22px 50px -22px rgba(45,107,255,.45);}
.stat b{display:block;font-size:clamp(26px,2.8vw,38px);font-weight:700;letter-spacing:-.02em;line-height:1.05;
  background:linear-gradient(120deg,var(--cyan),var(--blue-bright));
  -webkit-background-clip:text;background-clip:text;color:transparent;}
.stat span{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;}

/* ---------- ESENCIA / pilares ---------- */
.concepts{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden;}
.concept{background:var(--panel);backdrop-filter:blur(10px);
  padding:40px 32px 44px;transition:background .3s var(--ease);}
.concept:hover{background:var(--panel-strong);}
.concept .gly{width:48px;height:48px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;color:var(--cyan);margin-bottom:26px;
  background:rgba(91,212,255,.04);}
.concept h4{font-size:21px;color:var(--ink);font-weight:600;margin:0 0 10px;}
.concept p{font-size:15px;color:var(--muted);margin:0;line-height:1.6;}
.concept .tag{font-family:var(--mono);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--blue-bright);margin-top:18px;display:block;}

/* ---------- CAPACIDADES (features) ---------- */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.feature{border:1px solid var(--line);border-radius:18px;padding:34px 32px;
  background:var(--panel);backdrop-filter:blur(10px);
  position:relative;overflow:hidden;text-align:center;
  transition:transform .3s var(--ease),border-color .3s var(--ease);}
/* Textura sutil de constelación (SVG inline) — compartida con .stat más abajo */
.feature::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.22;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220' viewBox='0 0 220 220'><g stroke='%232d6bff' stroke-width='0.8' fill='none' opacity='0.75' stroke-linecap='round'><path d='M18 32 L62 58 L98 28 L150 50 L196 22'/><path d='M62 58 L86 110 L140 134'/><path d='M30 156 L78 178 L122 158 L170 196'/><path d='M196 22 L210 78 L168 108'/><path d='M86 110 L122 158'/></g><g fill='%235bd4ff'><circle cx='18' cy='32' r='1.6'/><circle cx='62' cy='58' r='2'/><circle cx='98' cy='28' r='1.6'/><circle cx='150' cy='50' r='1.8'/><circle cx='196' cy='22' r='1.6'/><circle cx='86' cy='110' r='2'/><circle cx='140' cy='134' r='1.6'/><circle cx='30' cy='156' r='1.6'/><circle cx='78' cy='178' r='1.8'/><circle cx='122' cy='158' r='2'/><circle cx='170' cy='196' r='1.6'/><circle cx='210' cy='78' r='1.6'/><circle cx='168' cy='108' r='1.8'/></g><g fill='%23ffffff' opacity='0.85'><circle cx='62' cy='58' r='0.6'/><circle cx='86' cy='110' r='0.6'/><circle cx='122' cy='158' r='0.6'/></g></svg>");
  background-size:220px 220px;
  -webkit-mask-image:radial-gradient(120% 110% at 50% 50%, rgba(0,0,0,1) 0%, rgba(0,0,0,.7) 55%, rgba(0,0,0,.3) 85%, rgba(0,0,0,0) 100%);
          mask-image:radial-gradient(120% 110% at 50% 50%, rgba(0,0,0,1) 0%, rgba(0,0,0,.7) 55%, rgba(0,0,0,.3) 85%, rgba(0,0,0,0) 100%);}
.feature::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;
  background:radial-gradient(60% 80% at 90% 0%, #2d6bff1f, transparent 60%);transition:opacity .35s var(--ease);}
.feature:hover{transform:translateY(-4px);border-color:#ffffff1f;}
.feature:hover::after{opacity:1;}
.feature .ico,.feature h4,.feature p{position:relative;z-index:2;}
/* Canvas de constelación interactiva dentro de cada card */
.card-stars-canvas{position:absolute;inset:0;width:100%;height:100%;
  pointer-events:none;z-index:1;display:block;}
.feature .ico{width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  color:var(--cyan);border:1px solid var(--line);background:rgba(91,212,255,.05);margin-bottom:22px;}
.feature h4{font-size:19px;color:var(--ink);font-weight:600;margin:0 0 9px;}
.feature p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.6;}

/* ---------- CÓMO FUNCIONA ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.step{position:relative;padding:34px 30px;border:1px solid var(--line);border-radius:18px;
  background:var(--panel);backdrop-filter:blur(10px);}
.step .no{font-family:var(--mono);font-size:13px;letter-spacing:.2em;color:var(--cyan);
  display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.step .no::after{content:"";flex:1;height:1px;background:var(--line);}
.step h4{font-size:20px;color:var(--ink);font-weight:600;margin:0 0 10px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.6;}

/* ---------- CTA final ---------- */
.cta-band{max-width:var(--maxw);margin:0 auto;padding:0 40px;}
.cta-card{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:24px;
  background:#ffffff;
  padding:80px 60px;text-align:center;}
.cta-card .bird{position:absolute;right:-50px;bottom:-40px;width:300px;opacity:.18;
  filter:drop-shadow(0 0 60px #2d6bff);pointer-events:none;}
.cta-card h2{position:relative;z-index:2;font-size:clamp(30px,4.4vw,52px);color:#fff;
  font-weight:600;letter-spacing:-.025em;line-height:1.06;margin:0 auto;max-width:18ch;}
.cta-card h2 em{font-style:normal;color:var(--cyan);}
.cta-card p{position:relative;z-index:2;font-size:17px;color:var(--mist);max-width:50ch;margin:20px auto 0;}
.cta-card .hero-cta{margin-top:34px;}

/* ---------- FOOTER ---------- */
.footer{border-top:1px solid var(--line);margin-top:40px;position:relative;z-index:2;}
.footer-in{max-width:var(--maxw);margin:0 auto;padding:56px 40px 36px;
  display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;}
.footer-in .l{display:flex;align-items:center;gap:14px;}
.footer-in .l img{width:40px;}
.footer-in .l b{color:#fff;font-weight:600;letter-spacing:.14em;font-size:18px;line-height:1.2;}
.footer-in .l span{font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;color:var(--muted);display:block;}
.footer-nav{display:flex;gap:26px;flex-wrap:wrap;}
.footer-nav a{font-family:var(--mono);font-size:13px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);transition:color .25s var(--ease);}
.footer-nav a:hover{color:var(--cyan);}
.footer-social{display:flex;gap:10px;}
.footer-bottom{max-width:var(--maxw);margin:0 auto;padding:22px 40px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;color:var(--muted-2);}

/* ---------- Scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s var(--ease),transform .8s var(--ease);will-change:opacity,transform;}
.reveal.in{opacity:1;transform:none;}
.reveal[data-delay="1"]{transition-delay:.12s;}
.reveal[data-delay="2"]{transition-delay:.24s;}
.reveal[data-delay="3"]{transition-delay:.36s;}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .features{grid-template-columns:1fr;}
  .concepts{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stats-in{grid-template-columns:repeat(2,1fr);}
}

/* Oculta los iconos sociales del header en rango tablet para no saturar */
@media(min-width:901px) and (max-width:1080px){
  .nav-social{display:none;}
}

/* Navegación móvil con menú hamburguesa */
@media(max-width:900px){
  .nav-toggle{display:inline-flex;}
  .nav-menu{position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:16px;
    padding:20px 26px 26px;
    background:rgba(7,10,20,.97);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    transform:translateY(-10px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;}
  .nav.open .nav-menu{transform:none;opacity:1;visibility:visible;pointer-events:auto;}
  .nav-links{flex-direction:column;gap:2px;}
  .nav-links a{padding:13px 2px;border-bottom:1px solid var(--line-soft);font-size:13px;}
  .nav-social{display:flex;justify-content:center;gap:10px;padding-top:8px;}
  .nav-social .social-ico{width:40px;height:40px;border-radius:11px;}
  .nav-social .social-ico svg{width:17px;height:17px;}
  .nav-cta{display:block;text-align:center;padding:13px;font-size:14px;}
}
@media(max-width:760px){
  .section{padding:84px 24px;}
  .stats{padding:0 24px;}
  .stats-in{grid-template-columns:1fr;}
  .cta-band{padding:0 24px;}
  .cta-card{padding:56px 28px;}
  .nav{padding:13px 20px;}
  .nav-brand b{font-size:14px;}
  .nav-brand span{font-size:14px;letter-spacing:.2em;}
  .hero-mark{width:min(320px,82vw);}
  .footer-in{flex-direction:column;align-items:center;text-align:center;}
  .footer-bottom{flex-direction:column;align-items:center;gap:8px;text-align:center;padding:20px 24px;}
}

/* Accesibilidad: reduce movimiento */
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;}
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ============================================================
   CUADROS BLANCOS — tarjetas claras sobre el cielo oscuro,
   con texto oscuro. Footer en negro. (Fondo de la página intacto)
   ============================================================ */
:root{
  --card-ink:#0e1530;     /* títulos */
  --card-muted:#5c6680;   /* texto */
  --card-line:#e4e9f3;    /* divisores claros */
  --card-accent:#2d6bff;  /* azul (mejor contraste que el cian sobre blanco) */
}

/* Stats: el numero usa degradado azul→cian (ver definicion principal arriba). El label en gris. */
.stat span{color:var(--card-muted);}
.stat{border-color:var(--card-line);}

/* Esencia / Capacidades / Pasos */
.concepts{background:var(--card-line);border-color:var(--card-line);}
.concept h4,.feature h4,.step h4{color:var(--card-ink);}
.concept p,.feature p,.step p{color:var(--card-muted);}
.concept .tag{color:var(--card-accent);}
.feature .ico{color:#fff;border:0;background:linear-gradient(135deg,#2d6bff,#5bd4ff);
  width:52px;height:52px;border-radius:14px;box-shadow:0 12px 26px -10px rgba(45,107,255,.7);
  margin-left:auto;margin-right:auto;}
.feature .ico svg{width:25px;height:25px;}
.step,.feature{border-color:var(--card-line);}
.feature:hover{border-color:#c9d4ec;}
.step .no{color:var(--card-accent);}
.step .no::after{background:var(--card-line);}

/* CTA en blanco */
.cta-card{border-color:var(--card-line);}
.cta-card h2{color:var(--card-ink);}
.cta-card h2 em{color:var(--card-accent);}
.cta-card p{color:var(--card-muted);}
.cta-card .bird{opacity:.1;filter:none;}
.cta-card .btn-ghost{color:var(--card-ink);border-color:#cfd8ea;background:#f1f5fc;}
.cta-card .btn-ghost:hover{color:var(--card-ink);border-color:#aebede;}

/* ============================================================
   HEADER + FOOTER BLANCOS (colores invertidos) — texto/iconos oscuros
   ============================================================ */
/* Nav blanco */
.nav{background:#ffffff;border-bottom-color:#e6ebf4;}
.nav.scrolled{background:#ffffff;border-bottom-color:#dfe5f1;box-shadow:0 8px 26px -18px rgba(20,40,90,.5);}
.nav-brand b{color:#0e1530;}
.nav-brand span{color:#5c6680;}
.nav-links a{color:#4a5470;}
.nav-links a:hover{color:var(--blue);}
.nav-toggle{border-color:#dbe2f0;background:#f2f5fb;color:#0e1530;}
.nav-toggle:hover{border-color:var(--blue);background:#e7eeff;}
.lang-toggle{display:inline-flex;align-items:center;justify-content:center;gap:6px;cursor:pointer;
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;
  padding:8px 12px;border-radius:9px;border:1px solid #dbe2f0;background:#f2f5fb;color:#4a5470;
  transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);}
.lang-toggle:hover{color:var(--blue);border-color:var(--blue);background:#e7eeff;}
.lang-toggle svg{width:15px;height:15px;}

/* Iconos sociales sobre fondo claro (header + footer) */
.social-ico{border-color:#dbe2f0;color:#4a5470;background:#f2f5fb;}
.social-ico:hover{color:#fff;border-color:var(--blue);background:var(--blue);box-shadow:0 10px 22px -10px rgba(45,107,255,.6);}

/* Footer blanco */
.footer{background:#ffffff;border-top-color:#e6ebf4;}
.footer-in .l b{color:#0e1530;}
.footer-in .l span{color:#5c6680;}
.footer-nav a{color:#4a5470;}
.footer-nav a:hover{color:var(--blue);}
.footer-bottom{border-top-color:#eaeef6;color:#8a93a8;}

/* Menú móvil sobre fondo claro */
@media(max-width:900px){
  .nav-menu{background:rgba(255,255,255,.98);border-bottom-color:#e6ebf4;}
  .nav-links a{border-bottom-color:#eef1f8;}
}