/* ============================================================
   BrainX — Smart System & Automation
   Estética dark / editorial. Negro protagonista, acento turquesa del logo.
   ============================================================ */

:root {
  /* Acentos de marca (del logo, usados con moderación) */
  --teal:   #3db8b2;
  --cyan:   #4fd1cb;
  --violet: #8b62b0;
  --indigo: #5a6fc0;
  --accent-grad: linear-gradient(120deg, #3db8b2, #4fd1cb);

  /* Negros y neutros (protagonistas) */
  --bg:     #0a0b0d;
  --bg-2:   #101216;
  --bg-3:   #15181d;
  --panel:  #14171c;
  --ink:    #f3f5f8;
  --ink-2:  #c4c9d2;
  --muted:  #868d99;
  --line:   rgba(255,255,255,.09);
  --line-2: rgba(255,255,255,.14);

  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 24px 60px -28px rgba(0,0,0,.8);

  --font-display: 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --maxw: 1200px;

  /* Textura de grano para botones (noise-background replicado) */
  --btn-noise: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='bn'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='0.62'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23bn)'/%3E%3C/svg%3E");

  /* Línea de la grilla background-boxes — teñida con el hue del acento
     (no gris neutro) y bien legible sobre el fondo oscuro */
  --box-line: rgba(122, 209, 203, .30);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.accent { color: var(--teal); }

/* Imagen con fallback elegante si falla la carga */
.img-fig, .svc-img, .g-item, .hero-bg, .band-bg { background: linear-gradient(135deg, #15181d, #0d0f12); }
img.img-failed { opacity: 0; }
.img-broken { position: relative; }
.img-broken::after {
  content: ''; position: absolute; inset: 0; background:
    radial-gradient(120% 120% at 30% 20%, rgba(61,184,178,.25), transparent 60%),
    linear-gradient(135deg, #16191f, #0c0e11);
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar { position: fixed; inset: 0 0 auto 0; z-index: 100; padding: 16px 0; transition: padding .3s, background .3s, border-color .3s; border-bottom: 1px solid transparent; }
.navbar.scrolled { padding: 9px 0; background: rgba(10,11,13,.82); backdrop-filter: blur(14px); border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.brand-logo { height: 42px; width: auto; max-width: none; transition: height .3s, transform .4s; }
.navbar.scrolled .brand-logo { height: 36px; }
.brand:hover .brand-logo { transform: scale(1.05); }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-weight: 500; color: var(--ink-2); font-size: .95rem; position: relative; transition: color .2s; }
.nav-links a:not(.btn)::after { content: ''; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0; background: var(--teal); transition: width .3s; }
.nav-links a:not(.btn):hover { color: #fff; }
.nav-links a:not(.btn):hover::after { width: 100%; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 26px; height: 2px; background: #fff; border-radius: 2px; transition: .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Selector de idioma ---- */
.lang-switch { display: inline-flex; align-items: center; gap: 2px; padding: 3px; border: 1px solid var(--line-2); border-radius: 999px; background: rgba(255,255,255,.04); }
.lang-switch button { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-display); font-weight: 600; font-size: .78rem; letter-spacing: .03em; color: var(--ink-2); background: none; border: 0; cursor: pointer; padding: 5px 10px; border-radius: 999px; line-height: 1; transition: color .2s, background .2s; }
.lang-switch button:hover { color: #fff; }
.lang-switch button.active { color: #06120f; background: var(--teal); }
.lang-switch .flag { width: 18px; height: 13px; border-radius: 3px; overflow: hidden; display: inline-block; flex: none; box-shadow: 0 0 0 1px rgba(0,0,0,.2); }
.lang-switch .flag svg { width: 100%; height: 100%; display: block; }

/* ============================================================
   BOTONES
   ============================================================ */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-family: var(--font-display); font-weight: 600; font-size: .95rem; padding: 13px 26px; border-radius: 8px; cursor: pointer; border: 0; transition: transform .25s, box-shadow .25s, background .25s, color .25s; white-space: nowrap; }
.btn-primary { background-color: var(--teal); color: #06120f; box-shadow: 0 10px 30px -10px rgba(61,184,178,.55); }
.btn-primary:hover { transform: translateY(-3px); background-color: var(--cyan); box-shadow: 0 18px 40px -12px rgba(79,209,203,.6); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line-2); }
.btn-ghost:hover { background: rgba(255,255,255,.06); transform: translateY(-3px); }
.btn-nav { background-color: var(--teal); color: #06120f; padding: 9px 20px; }
.btn-nav:hover { transform: translateY(-2px); background-color: var(--cyan); }
.btn-nav::after { display: none !important; }
.btn-lg { padding: 16px 38px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ============================================================
   HERO
   ============================================================ */
.hero { position: relative; padding: 150px 0 110px; overflow: hidden;
  background:
    radial-gradient(58% 44% at 50% 36%, rgba(61,184,178,.12), transparent 62%),
    radial-gradient(92% 66% at 50% 110%, rgba(90,111,192,.22), transparent 60%),
    linear-gradient(180deg, #0a0f1c 0%, #080b13 55%, var(--bg) 100%); }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .28; filter: grayscale(.3) contrast(1.05); }
.hero::after { content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none; background: radial-gradient(140% 120% at 50% 42%, transparent 60%, rgba(6,8,14,.42) 100%), linear-gradient(180deg, transparent 66%, rgba(8,10,18,.45) 100%); }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; }

.eyebrow { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-display); font-weight: 600; font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-2); padding: 7px 15px; border-radius: 999px; background: rgba(255,255,255,.04); border: 1px solid var(--line); margin-bottom: 24px; }
.eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 10px var(--teal); animation: pulseDot 2s infinite; }
@keyframes pulseDot { 50% { opacity: .4; transform: scale(.8); } }

.hero h1 { font-family: var(--font-display); font-weight: 800; line-height: 1.06; font-size: clamp(2.3rem, 5.2vw, 4rem); letter-spacing: -.025em; color: #fff; }
.lead { font-size: clamp(1rem, 1.5vw, 1.15rem); color: var(--ink-2); margin: 22px 0 32px; max-width: 540px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; margin-top: 48px; }
.hero-stats strong { font-family: var(--font-display); font-size: 2.1rem; font-weight: 800; color: #fff; display: block; line-height: 1; }
.hero-stats span { font-size: .82rem; color: var(--muted); }

/* Logo escenario */
.hero-visual { display: flex; justify-content: center; }
.logo-stage { position: relative; width: 460px; height: 460px; max-width: 88vw; display: flex; align-items: center; justify-content: center; }
.logo-plate { position: relative; z-index: 3; width: 72%; display: grid; place-items: center; }
.hero-logo { width: 100%; filter: drop-shadow(0 16px 34px rgba(0,0,0,.5)) drop-shadow(0 0 28px rgba(61,184,178,.3)) brightness(1.08); }
.floaty { animation: floaty 5s ease-in-out infinite; }
@keyframes floaty { 50% { transform: translateY(-12px); } }
.logo-glow { position: absolute; width: 62%; height: 62%; border-radius: 50%; background: var(--accent-grad); filter: blur(60px); opacity: .35; z-index: 1; animation: pulse 4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { transform: scale(.85); opacity: .25; } 50% { transform: scale(1.1); opacity: .45; } }
.orbit { position: absolute; border-radius: 50%; border: 1px dashed rgba(255,255,255,.12); z-index: 2; }
.orbit-1 { width: 100%; height: 100%; animation: spin 30s linear infinite; }
.orbit-2 { width: 80%; height: 80%; border-color: rgba(61,184,178,.28); animation: spin 20s linear infinite reverse; }
@keyframes spin { to { transform: rotate(360deg); } }
.orbit::before { content: ''; position: absolute; top: -4px; left: 50%; width: 9px; height: 9px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 12px var(--teal); }
.orbit-2::before { background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }

.scroll-hint { position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); z-index: 3; width: 24px; height: 40px; border: 2px solid rgba(255,255,255,.25); border-radius: 13px; }
.scroll-hint span { position: absolute; top: 7px; left: 50%; transform: translateX(-50%); width: 4px; height: 8px; border-radius: 3px; background: var(--teal); animation: scrolldot 1.6s ease-in-out infinite; }
@keyframes scrolldot { 0% { opacity: 0; top: 7px; } 40% { opacity: 1; } 80% { opacity: 0; top: 22px; } }

/* ============================================================
   HERO FX — fondo IA animado (red de nodos + onda + circuito + HUD)
   ============================================================ */
.hero-fx { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.fx-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.fx-circuit { position: absolute; top: 0; left: 0; width: clamp(170px, 26vw, 330px); height: auto; color: var(--teal); opacity: .5; }
.fx-circuit path { opacity: .85; }
.fx-circuit .node { fill: var(--cyan); filter: drop-shadow(0 0 3px rgba(79,209,203,.85)); animation: fxNode 2.6s ease-in-out infinite; }
.fx-circuit .node:nth-child(even) { animation-delay: .9s; }
@keyframes fxNode { 0%, 100% { opacity: .3; } 50% { opacity: 1; } }

.hud { position: absolute; border-radius: 50%; }
.hud::before, .hud::after { content: ''; position: absolute; inset: 0; border-radius: 50%; }
.hud::before { border: 1px solid rgba(79,209,203,.16); }
.hud::after { border: 2px solid transparent; border-top-color: rgba(79,209,203,.6); border-right-color: rgba(90,111,192,.4); animation: spin 9s linear infinite; }
.hud-1 { width: clamp(86px, 11vw, 138px); aspect-ratio: 1; top: 53%; left: 2.5%; }
.hud-2 { width: clamp(128px, 16vw, 198px); aspect-ratio: 1; bottom: 11%; right: 5%; }
.hud-2::after { animation-duration: 13s; animation-direction: reverse; }

/* Plexus sutil detrás de "Método" */
#metodo { position: relative; overflow: hidden; }
.metodo-fx { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
#metodo .container { position: relative; z-index: 1; }

/* Divisores entre secciones con un destello que recorre la línea */
.fx-divider { position: relative; height: 1px; width: calc(100% - 48px); max-width: var(--maxw); margin: 0 auto; overflow: hidden; background: linear-gradient(90deg, transparent, rgba(61,184,178,.3) 25%, rgba(90,111,192,.3) 75%, transparent); }
.fx-divider::before { content: ''; position: absolute; top: 0; left: -90px; height: 100%; width: 90px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); box-shadow: 0 0 8px rgba(79,209,203,.7); animation: fxSweep 7s linear infinite; }
@keyframes fxSweep { 0% { left: -90px; opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { left: 100%; opacity: 0; } }

/* Acento del footer (línea brillante arriba + glow tenue) */
.footer { position: relative; }
.footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(61,184,178,.45), rgba(90,111,192,.45), transparent); }
.footer::after { content: ''; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(60% 120% at 82% 0%, rgba(61,184,178,.07), transparent 60%); }
.footer-inner, .footer-bottom { position: relative; z-index: 1; }

@media (prefers-reduced-motion: reduce) {
  .fx-circuit .node, .hud::after, .fx-divider::before { animation: none; }
}

/* ============================================================
   MARQUEE
   ============================================================ */
.marquee { background: var(--teal); color: #06120f; overflow: hidden; padding: 14px 0; border-top: 1px solid rgba(0,0,0,.1); }
.marquee-track { display: inline-flex; align-items: center; gap: 26px; white-space: nowrap; animation: scrollX 28s linear infinite; }
.marquee-track span { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; letter-spacing: .01em; }
.marquee-track i { opacity: .55; font-style: normal; }
@keyframes scrollX { to { transform: translateX(-50%); } }

/* ============================================================
   SECCIONES
   ============================================================ */
.section { padding: 96px 0; position: relative; }
.section-dark { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { text-align: center; max-width: 660px; margin: 0 auto 56px; }
.kicker { font-family: var(--font-display); font-weight: 600; font-size: .78rem; letter-spacing: .18em; text-transform: uppercase; color: var(--teal); }
.section-head h2, .intro-copy h2, .metodo-copy h2, .contact-info h2, .cta-banner h2, .band-inner h2 { font-family: var(--font-display); font-weight: 800; letter-spacing: -.025em; font-size: clamp(1.8rem, 3.8vw, 2.7rem); margin: 14px 0 14px; line-height: 1.12; color: #fff; }
.section-head p { color: var(--muted); font-size: 1.05rem; }

/* ============================================================
   INTRO
   ============================================================ */
.intro-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 56px; align-items: center; }
.intro-media { position: relative; }
.img-fig { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.img-fig img { width: 100%; height: 100%; object-fit: cover; display: block; }
.intro-media .tall { aspect-ratio: 4/5; }
.intro-media .float-card { position: absolute; right: -18px; bottom: -28px; width: 56%; aspect-ratio: 4/3; box-shadow: var(--shadow); animation: floaty 6s ease-in-out infinite; }
.intro-copy p { color: var(--ink-2); margin-bottom: 16px; }
.intro-copy strong { color: #fff; }
.intro-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
.intro-points div { display: flex; align-items: center; gap: 10px; font-size: .95rem; color: var(--ink-2); }
.tick { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; background: rgba(61,184,178,.14); color: var(--teal); font-size: .8rem; flex-shrink: 0; }

/* ============================================================
   SERVICIOS
   ============================================================ */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.svc { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform .35s, border-color .35s, box-shadow .35s; }
.svc:hover { transform: translateY(-8px); border-color: rgba(61,184,178,.4); box-shadow: var(--shadow); }
.svc-img { aspect-ratio: 16/10; overflow: hidden; position: relative; }
.svc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s, filter .4s; filter: grayscale(.25) brightness(.85); }
.svc:hover .svc-img img { transform: scale(1.07); filter: grayscale(0) brightness(1); }
.svc-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(20,23,28,.85)); }
.svc-body { padding: 26px 24px 28px; position: relative; }
.svc-num { position: absolute; top: -22px; right: 20px; font-family: var(--font-display); font-weight: 800; font-size: 1rem; color: #06120f; background: var(--teal); padding: 6px 11px; border-radius: 7px; }
.svc h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.28rem; margin-bottom: 9px; color: #fff; }
.svc > .svc-body > p { color: var(--muted); font-size: .96rem; margin-bottom: 16px; }
.svc ul { display: flex; flex-direction: column; gap: 7px; }
.svc ul li { font-size: .88rem; color: var(--ink-2); padding-left: 20px; position: relative; }
.svc ul li::before { content: ''; position: absolute; left: 0; top: 8px; width: 8px; height: 8px; border-radius: 2px; background: var(--teal); }
.svc-cta { background: linear-gradient(150deg, #16191f, #0d0f13); display: flex; align-items: center; }
.svc-cta .svc-body { padding: 34px 28px; }
.svc-cta h3 { color: #fff; }
.svc-cta p { color: var(--ink-2); margin-bottom: 20px; }

/* ============================================================
   GALERÍA / TRABAJO
   ============================================================ */
.gallery { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; padding: 0 16px; max-width: 1500px; margin: 0 auto; }
.g-item { position: relative; aspect-ratio: 3/4; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
.g-item img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.4) brightness(.8); transition: transform .6s, filter .5s; }
.g-item:hover img { transform: scale(1.08); filter: grayscale(0) brightness(1); }
.g-item figcaption { position: absolute; left: 12px; bottom: 12px; font-family: var(--font-display); font-weight: 600; font-size: .85rem; color: #fff; padding: 5px 11px; background: rgba(10,11,13,.6); backdrop-filter: blur(6px); border-radius: 6px; border: 1px solid var(--line); }
.g-item:hover figcaption { color: var(--cyan); }
.g-item:nth-child(odd) { transform: translateY(18px); }

/* ============================================================
   MÉTODO
   ============================================================ */
.metodo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.metodo-copy > p { color: var(--muted); margin: 14px 0 28px; max-width: 440px; }
.metodo-img { aspect-ratio: 16/11; }
.metodo-img img { filter: grayscale(.3) brightness(.85); }
.steps { display: flex; flex-direction: column; gap: 14px; }
.step { display: flex; gap: 20px; align-items: flex-start; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; transition: transform .3s, border-color .3s; }
.step:hover { transform: translateX(6px); border-color: rgba(61,184,178,.4); }
.step-num { font-family: var(--font-display); font-weight: 800; font-size: 1.6rem; color: var(--teal); line-height: 1; flex-shrink: 0; width: 44px; }
.step h3 { font-family: var(--font-display); font-size: 1.15rem; margin-bottom: 5px; color: #fff; }
.step p { color: var(--muted); font-size: .94rem; }

/* ============================================================
   BAND (franja imagen)
   ============================================================ */
.band { position: relative; padding: 130px 0; overflow: hidden; }
.band-bg { position: absolute; inset: 0; z-index: 0; }
.band-bg img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.5) brightness(.4); }
.band::after { content: ''; position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, rgba(10,11,13,.92) 0%, rgba(10,11,13,.6) 60%, rgba(10,11,13,.4) 100%); }
.band-inner { position: relative; z-index: 2; max-width: 600px; }
.band-inner p { color: var(--ink-2); font-size: 1.1rem; margin: 14px 0 28px; }

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner { padding: 90px 0; text-align: center; background: var(--bg-2); border-top: 1px solid var(--line); }
.cta-banner .container { max-width: 760px; }
.cta-banner p { color: var(--ink-2); margin: 12px 0 30px; font-size: 1.12rem; }

/* ============================================================
   CONTACTO
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
.contact-info > p { color: var(--muted); margin-bottom: 28px; }
.contact-list { display: flex; flex-direction: column; gap: 12px; }
.contact-list a { display: flex; align-items: center; gap: 16px; padding: 15px 18px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--panel); transition: transform .25s, border-color .25s, background .25s; }
.contact-list a:hover { transform: translateX(6px); border-color: rgba(61,184,178,.4); background: var(--bg-3); }
.ci-icon { width: 44px; height: 44px; border-radius: 11px; display: grid; place-items: center; background: rgba(61,184,178,.12); color: var(--teal); flex-shrink: 0; }
.ci-icon svg { width: 23px; height: 23px; }
.contact-list strong { font-family: var(--font-display); color: #fff; font-weight: 600; }
.contact-list span { font-size: .9rem; color: var(--muted); }
.contact-list a.ci-portal { border-color: rgba(61,184,178,.4); background: linear-gradient(135deg, rgba(61,184,178,.1), var(--panel)); }
.contact-list a.ci-portal:hover { border-color: var(--teal); }
.contact-list a.ci-portal .ci-icon { background: var(--teal); color: #06120f; }

.contact-form { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .86rem; font-weight: 600; margin-bottom: 7px; color: var(--ink-2); }
.field input, .field select, .field textarea { width: 100%; padding: 13px 16px; border: 1px solid var(--line-2); border-radius: 10px; font-family: var(--font-body); font-size: .95rem; color: var(--ink); background: var(--bg); transition: border-color .25s, box-shadow .25s; }
.field input::placeholder, .field textarea::placeholder { color: #5c636e; }
.field select option { background: #14171c; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 0; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(61,184,178,.18); }
.field textarea { resize: vertical; }
.form-note { text-align: center; font-size: .82rem; color: var(--muted); margin-top: 14px; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: #07080a; color: #9aa0ab; padding: 60px 0 0; border-top: 1px solid var(--line); }
.footer-inner { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-logo { height: 42px; margin-bottom: 16px; filter: brightness(1.2); }
.footer-brand p { font-size: .92rem; color: var(--muted); max-width: 320px; }
.footer-col h4 { font-family: var(--font-display); color: #fff; font-size: 1rem; margin-bottom: 16px; }
.footer-col a { display: block; font-size: .92rem; color: var(--muted); margin-bottom: 10px; transition: color .2s, padding-left .2s; }
.footer-col a:hover { color: var(--teal); padding-left: 5px; }
.footer-bottom { border-top: 1px solid var(--line); padding: 22px 0; }
.footer-bottom span { font-size: .85rem; color: #5c636e; }

/* ============================================================
   WHATSAPP FLOTANTE
   ============================================================ */
.wa-float { position: fixed; bottom: 26px; right: 26px; z-index: 90; width: 58px; height: 58px; border-radius: 50%; background: #25d366; color: #fff; display: grid; place-items: center; box-shadow: 0 12px 30px -8px rgba(37,211,102,.6); animation: waPulse 2.5s ease-in-out infinite; transition: transform .25s; }
.wa-float svg { width: 31px; height: 31px; }
.wa-float:hover { transform: scale(1.1); }
@keyframes waPulse { 0%,100% { box-shadow: 0 12px 30px -8px rgba(37,211,102,.6), 0 0 0 0 rgba(37,211,102,.4); } 50% { box-shadow: 0 12px 30px -8px rgba(37,211,102,.6), 0 0 0 16px rgba(37,211,102,0); } }

/* ============================================================
   REVEAL
   ============================================================ */
.reveal { opacity: 0; transform: translateY(32px); transition: opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-copy { order: 2; }
  .hero-visual { order: 1; }
  .hero-cta, .hero-stats { justify-content: center; }
  .lead { margin-left: auto; margin-right: auto; }
  .intro-grid, .metodo-grid { grid-template-columns: 1fr; gap: 60px; }
  .intro-media .float-card { right: 0; }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links { position: fixed; inset: 0 0 auto 0; flex-direction: column; background: rgba(10,11,13,.98); backdrop-filter: blur(14px); padding: 100px 30px 40px; gap: 22px; transform: translateY(-110%); transition: transform .4s cubic-bezier(.2,.7,.3,1); align-items: stretch; text-align: center; border-bottom: 1px solid var(--line); }
  .nav-links.open { transform: translateY(0); }
  .nav-toggle { display: flex; z-index: 101; }
  .btn-nav { width: 100%; }
  .lang-switch { margin-left: auto; margin-right: 6px; z-index: 101; }
  .lang-switch button { padding: 5px 7px; gap: 0; }
  .lang-switch .code { display: none; }
}
@media (max-width: 560px) {
  .svc-grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .g-item:nth-child(odd) { transform: none; }
  .intro-points { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .hero-stats { gap: 26px; }
  .logo-stage { width: 330px; height: 330px; }
  .intro-media .float-card { position: static; width: 100%; margin-top: 12px; }
}
/* ============================================================
   DETALLES ESTÉTICOS
   ============================================================ */

/* Barra de progreso de scroll */
.scroll-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 101; background: linear-gradient(90deg, var(--teal), var(--cyan)); transform: scaleX(0); transform-origin: 0 50%; box-shadow: 0 0 10px rgba(61,184,178,.6); }

/* Textura de grano sutil (look editorial, no "plano") */
.grain { position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: .045; mix-blend-mode: overlay; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }

/* Nav: resaltar sección activa */
.nav-links a.active { color: #fff; }
.nav-links a.active::after { width: 100%; }

/* Línea de acento bajo los títulos centrados */
.section-head h2::after, .cta-banner h2::after { content: ''; display: block; width: 54px; height: 3px; margin: 18px auto 0; background: linear-gradient(90deg, var(--teal), var(--cyan)); border-radius: 2px; }

/* Flecha animada en botones primarios */
.btn-primary::after { content: '→'; font-size: 1.05em; line-height: 1; transition: transform .25s ease; }
.btn-primary:hover::after { transform: translateX(5px); }

/* Spotlight que sigue el cursor en las tarjetas de servicio */
.svc { position: relative; }
.svc::after { content: ''; position: absolute; inset: 0; border-radius: var(--radius); z-index: 2; pointer-events: none; opacity: 0; transition: opacity .4s; background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 50%), rgba(61,184,178,.16), transparent 60%); }
.svc:hover::after { opacity: 1; }
.svc-body { z-index: 3; }

/* Botón volver arriba */
.to-top { position: fixed; bottom: 26px; left: 26px; z-index: 90; width: 46px; height: 46px; border-radius: 50%; background: var(--panel); border: 1px solid var(--line-2); color: var(--teal); display: grid; place-items: center; cursor: pointer; opacity: 0; transform: translateY(12px); pointer-events: none; transition: opacity .3s, transform .3s, background .25s, color .25s; }
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: var(--teal); color: #06120f; }
.to-top svg { width: 20px; height: 20px; }

/* Foco accesible por teclado */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

/* Selección de texto */
::selection { background: rgba(61,184,178,.3); color: #fff; }

/* Scrollbar fino acorde al tema */
::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-track { background: #07080a; }
::-webkit-scrollbar-thumb { background: #23272e; border-radius: 6px; border: 2px solid #07080a; }
::-webkit-scrollbar-thumb:hover { background: var(--teal); }

@media (max-width: 560px) {
  .to-top { bottom: 90px; left: 16px; width: 42px; height: 42px; }
}

/* ============================================================
   MANIFIESTO / FRASE TRILINGÜE
   ============================================================ */
.manifesto { padding: 100px 0; background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); position: relative; overflow: hidden; }
.manifesto::before { content: ''; position: absolute; top: -40%; right: -8%; width: 55%; height: 180%; background: radial-gradient(circle, rgba(61,184,178,.10), transparent 60%); pointer-events: none; }
.manifesto .container { position: relative; z-index: 1; }
.manifesto-kicker { display: inline-block; font-family: var(--font-display); font-weight: 600; font-size: .82rem; letter-spacing: .28em; color: var(--teal); margin-bottom: 30px; }
.manifesto-line { font-family: var(--font-display); font-weight: 800; letter-spacing: -.02em; line-height: 1.14; color: var(--muted); margin-bottom: 16px; }
.manifesto-line.is-primary { font-size: clamp(2rem, 5.2vw, 3.7rem); color: #fff; margin-bottom: 26px; }
.manifesto-line:not(.is-primary) { font-size: clamp(1.15rem, 2.7vw, 2rem); opacity: .72; }
.manifesto-line .grad { background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
/* Shimmer: el término descansa en teal plano y un destello de luz lo cruza
   (ver bloque "FX — SHIMMER" más abajo). */
.mf-tag { display: inline-block; vertical-align: middle; font-family: var(--font-body); font-weight: 700; font-size: .72rem; letter-spacing: .08em; color: var(--teal); background: rgba(61,184,178,.12); border: 1px solid rgba(61,184,178,.32); padding: 5px 9px; border-radius: 7px; margin-right: 16px; transform: translateY(-4px); }
.manifesto-line.is-primary .mf-tag { font-size: .82rem; }
.manifesto .reveal:nth-child(2) { transition-delay: .08s; }
.manifesto .reveal:nth-child(3) { transition-delay: .16s; }
.manifesto .reveal:nth-child(4) { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ============================================================
   FX — NOISE en botones  (noise-background · Aceternity, vanilla)
   La textura de grano se mezcla con el background-color propio de
   cada botón (background-blend-mode: overlay): el color se mantiene
   y el texto queda nítido porque va por encima del fondo.
   Solo en los botones con relleno; el ghost queda limpio.
   ============================================================ */
.btn-primary, .btn-nav {
  background-image: var(--btn-noise);
  background-size: 128px 128px;
  background-repeat: repeat;
  background-blend-mode: overlay;
}

/* ============================================================
   FX — SHIMMER  (barrido de luz · Magic UI, re-teñido a marca)
   "Inteligencia Artificial" del manifiesto descansa en teal plano
   y un destello frío (cyan → luz) lo cruza en diagonal, con una
   pausa entre pasadas. Los dos extremos del degradado son teal
   planos, así el reinicio del ciclo no se ve.
   Solo CSS, sin JS: las tres líneas quedan escalonadas ES→EN→PT.
   ============================================================ */
.manifesto-line .grad {
  background-image: linear-gradient(102deg,
    var(--teal)  0%,   var(--teal)  40%,
    var(--cyan)  46%,
    #dffaf6      50%,                     /* la luz — nunca #fff puro */
    var(--cyan)  54%,
    var(--teal)  60%,  var(--teal) 100%);
  background-size: 300% 100%;
  background-repeat: no-repeat;
  /* linear a propósito: un barrido de luz cruza a velocidad constante.
     El ease de marca haría que la luz se dispare y quede clavada al final. */
  animation: mfShimmer 7s linear infinite;
}
.manifesto-line[lang="en"] .grad { animation-delay: .4s; }
.manifesto-line[lang="pt"] .grad { animation-delay: .8s; }

@keyframes mfShimmer {
  0%,   6%   { background-position: 100% 50%; }   /* teal plano, antes del barrido */
  56%, 100%  { background-position: 0%   50%; }   /* teal plano, después */
}

@media (prefers-reduced-motion: reduce) {
  .manifesto-line .grad { animation: none; background-position: 0% 50%; }
}

/* ============================================================
   FX — BACKGROUND BOXES  (background-boxes · Aceternity, vanilla)
   Grilla oblicua detrás de cada .section-head. En reposo son
   hairlines tenues; al pasar el mouse cada celda se enciende
   instantánea con un color de marca y se apaga en ~2 s. La grilla
   la genera boxes-bg.js; sin JS no aparece nada. Enmascarada en
   radial para fundirse con el fondo; pointer-events solo en las
   celdas para no bloquear el resto de la sección.
   ============================================================ */
.section-head { position: relative; }
.section-head .kicker,
.section-head .sp-eyebrow,
.section-head h2,
.section-head p { position: relative; z-index: 1; }

.boxes-wrap {
  position: absolute;
  top: -36px; bottom: -8px;
  left: 50%;
  width: 1500px;
  transform: translateX(-50%);
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
  /* La máscara ahora se mantiene opaca hasta más de la mitad y baja en dos
     tramos: la grilla se lee completa y recién se funde contra los bordes. */
  -webkit-mask-image: radial-gradient(120% 138% at 50% 50%, #000 0%, #000 54%, rgba(0,0,0,.5) 76%, transparent 94%);
          mask-image: radial-gradient(120% 138% at 50% 50%, #000 0%, #000 54%, rgba(0,0,0,.5) 76%, transparent 94%);
}
/* Núcleo de respiro: con la grilla brillante, las líneas cruzaban el párrafo
   y lo leían como tachado. Este velo del color de fondo despeja el centro
   (donde va la copy) y deja la grilla intacta en los flancos. */
.boxes-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;          /* tapa las líneas, pero la celda encendida lo atraviesa */
  pointer-events: none;
  background: radial-gradient(43% 74% at 50% 58%,
    rgba(10, 11, 13, .94) 0%,
    rgba(10, 11, 13, .82) 44%,
    rgba(10, 11, 13, .38) 71%,
    transparent 90%);
}
.boxes-grid {
  position: absolute;
  top: 50%; left: 50%;
  display: flex;
  transform: translate(-50%, -50%) skewX(-42deg) skewY(12deg);
  transform-origin: center;
}
.boxes-col { display: flex; flex-direction: column; }
.boxes-cell {
  position: relative;
  width: 58px; height: 30px;
  border-right: 1px solid var(--box-line);
  border-top: 1px solid var(--box-line);
  pointer-events: auto;
  transition: background-color 1.4s ease;   /* más corto = rastro más corto al mover el mouse */
}
.boxes-col:first-child .boxes-cell { border-left: 1px solid var(--box-line); }
.boxes-cell:hover {
  /* Lavado, no bloque sólido: el color se insinúa y no compite con la copy.
     La primera línea es el fallback si el motor no soporta color-mix. */
  background-color: rgba(79, 209, 203, .17);
  background-color: color-mix(in oklab, var(--hc, var(--teal)) 20%, transparent);
  transition-duration: 0s;
  z-index: 3;   /* por encima del velo del núcleo, así no sale doblemente apagado */
}
.boxes-cell.plus::before {
  content: '';
  position: absolute;
  top: -6px; left: -6px;
  width: 12px; height: 12px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10'%3E%3Cpath d='M5 0v10M0 5h10' stroke='%234fd1cb' stroke-width='1.1'/%3E%3C/svg%3E") center/contain no-repeat;
  opacity: .62;
  pointer-events: none;
}