/* =================================================================
   CONSULTORÍA FIRMWARE & HARDWARE — Estilos
   Tema oscuro por defecto + tema claro con [data-theme="light"].
   Colores centralizados en :root para editar fácil.
   ================================================================= */

:root {
  --bg:        #0a0e1a;
  --bg-alt:    #0f1525;
  --surface:   #131b30;
  --surface-2: #1a2440;
  --border:    #243152;
  --text:      #e8edf7;
  --text-dim:  #97a3bd;
  --accent:    #2dd4bf;
  --accent-2:  #3b82f6;
  --accent-glow: rgba(45, 212, 191, 0.35);
  --on-accent: #04121a;

  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1140px;
  --font: 'Manrope', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', 'Manrope', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --shadow: 0 12px 30px rgba(0,0,0,0.25);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: .18s;
  --t-base: .26s;
}

/* ---------- TEMA CLARO ---------- */
[data-theme="light"] {
  --bg:        #ffffff;
  --bg-alt:    #f3f6fb;
  --surface:   #ffffff;
  --surface-2: #f3f6fb;
  --border:    #dce3ee;
  --text:      #0f1525;
  --text-dim:  #586079;
  --accent:    #0d9488;
  --accent-2:  #2563eb;
  --accent-glow: rgba(13, 148, 136, 0.22);
  --on-accent: #ffffff;
  --shadow: 0 12px 30px rgba(20,40,80,0.10);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font); background: var(--bg); color: var(--text);
  line-height: 1.65; -webkit-font-smoothing: antialiased; overflow-x: hidden;
  transition: background .3s ease, color .3s ease;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.12; letter-spacing: -0.025em; font-weight: 700; }
.logo-text { font-family: var(--font-display); }
.eyebrow { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; font-weight: 600; }

/* ---------- Botones ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 28px; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.98rem; cursor: pointer; border: none; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s; white-space: nowrap; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--on-accent); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px var(--accent-glow); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-full { width: 100%; }
.btn-sm { padding: 10px 18px; font-size: 0.9rem; }
.btn-cal { margin-bottom: 28px; }

/* ---------- HEADER ---------- */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: color-mix(in srgb, var(--bg) 60%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid transparent; transition: background .3s ease, border-color .3s ease; }
.site-header.scrolled { background: color-mix(in srgb, var(--bg) 92%, transparent); border-bottom-color: var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; }
.logo-img { height: 36px; width: auto; }
.logo-mark { font-family: var(--mono); color: var(--accent); background: var(--surface-2); border: 1px solid var(--border); padding: 4px 8px; border-radius: 8px; font-size: 0.95rem; }
.logo-text { letter-spacing: -0.02em; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { color: var(--text-dim); font-weight: 500; font-size: 0.95rem; transition: color .2s; }
.nav a:hover { color: var(--text); }
.nav .nav-cta { color: var(--accent); border: 1px solid var(--border); padding: 8px 18px; border-radius: var(--radius-sm); }
.nav .nav-cta:hover { background: var(--surface-2); border-color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.icon-btn { width: 38px; height: 38px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--border); cursor: pointer; display: grid; place-items: center; font-size: 1rem; transition: border-color .2s; }
.icon-btn:hover { border-color: var(--accent); }
.icon-btn svg { width: 18px; height: 18px; }
.theme-icon-light { display: none; }
[data-theme="light"] .theme-icon-dark { display: none; }
[data-theme="light"] .theme-icon-light { display: inline; }
.lang-switch { background: var(--surface-2); border: 1px solid var(--border); border-radius: 20px; padding: 6px 12px; cursor: pointer; font-family: var(--mono); font-size: 0.8rem; font-weight: 600; display: flex; gap: 4px; align-items: center; }
.lang-opt { color: var(--text-dim); transition: color .2s; }
.lang-opt.active { color: var(--accent); }
.lang-sep { color: var(--border); }
.burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.burger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- HERO ---------- */
.hero { position: relative; padding: 160px 0 100px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; background: radial-gradient(ellipse 60% 50% at 50% 0%, color-mix(in srgb, var(--accent-2) 18%, transparent), transparent 70%), radial-gradient(ellipse 50% 40% at 80% 20%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 70%); }
.hero-bg::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(color-mix(in srgb, var(--border) 50%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in srgb, var(--border) 50%, transparent) 1px, transparent 1px); background-size: 52px 52px; mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 75%); }
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero-content { max-width: 600px; }
.hero-title { font-size: clamp(2.1rem, 4.4vw, 3.5rem); font-weight: 700; margin-bottom: 22px; background: linear-gradient(180deg, var(--text) 35%, var(--text-dim)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---- Hero: circuito animado (pulsos de señal) ---- */
.hero-visual { position: relative; z-index: 1; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; width: 70%; height: 70%; background: radial-gradient(circle, var(--accent-glow), transparent 70%); filter: blur(30px); z-index: 0; opacity: .5; }
.circuit { position: relative; z-index: 1; width: 100%; max-width: 460px; height: auto; }
.circuit .trace { stroke: color-mix(in srgb, var(--accent) 30%, var(--border)); stroke-width: 2; fill: none; }
.circuit .node { fill: var(--bg); stroke: var(--accent); stroke-width: 2; transform-box: fill-box; transform-origin: center; }
.circuit .node-wd { stroke: var(--accent-2); }
.circuit .node-g .node { animation: nodePulse 2.8s var(--ease) infinite; animation-delay: var(--d); }
.circuit .lbl { fill: var(--text-dim); font-family: var(--mono); font-size: 13px; letter-spacing: .5px; }
.circuit .chip { fill: var(--surface); stroke: var(--accent); stroke-width: 2; }
.circuit .chip-glow { fill: none; stroke: var(--accent); stroke-width: 2; opacity: 0; transform-box: fill-box; transform-origin: center; animation: chipGlow 2.6s ease-out infinite; }
.circuit .chip-pin { stroke: var(--accent-2); stroke-width: 2; }
.circuit .chip-txt { fill: var(--accent); font-family: var(--mono); font-size: 15px; font-weight: 600; }
.circuit .pulse { fill: var(--accent); filter: drop-shadow(0 0 5px var(--accent)); }
@keyframes nodePulse { 0%,100%{ opacity: 1; } 50%{ opacity: .4; transform: scale(.82); } }
@keyframes chipGlow { 0%{ opacity: .6; transform: scale(1); } 70%,100%{ opacity: 0; transform: scale(1.35); } }
.hero-sub { font-size: clamp(1.05rem, 2vw, 1.3rem); color: var(--text-dim); max-width: 680px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags li { font-family: var(--mono); font-size: 0.82rem; background: var(--surface); border: 1px solid var(--border); padding: 7px 14px; border-radius: 20px; color: var(--text-dim); }

/* ---------- STATS ---------- */
.stats { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-alt); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { text-align: center; padding: 44px 16px; border-right: 1px solid var(--border); }
.stat:last-child { border-right: none; }
.stat-num { display: block; font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 900; background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1; }
.stat-label { display: block; margin-top: 10px; color: var(--text-dim); font-size: 0.95rem; }

/* ---------- SECTIONS ---------- */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-title { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 16px; }
.section-lead { color: var(--text-dim); font-size: 1.08rem; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; transition: transform .25s ease, border-color .25s ease, background .25s ease; position: relative; overflow: hidden; }
.card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transform: scaleX(0); transform-origin: left; transition: transform .3s ease; }
.card:hover { transform: translateY(-6px); border-color: var(--surface-2); box-shadow: var(--shadow); }
.card:hover::before { transform: scaleX(1); }
.card-icon { width: 44px; height: 44px; margin-bottom: 18px; display: grid; place-items: center; border-radius: 12px; background: color-mix(in srgb, var(--accent) 12%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent); }
.card-icon svg { width: 24px; height: 24px; stroke: var(--accent); }
.btn svg { width: 18px; height: 18px; }
.card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: 0.95rem; }

/* ---------- Tecnologías ---------- */
.tech-groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px; }
.tech-group .tech-title { font-size: 1.05rem; margin-bottom: 16px; color: var(--accent); font-family: var(--mono); }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips li { background: var(--surface); border: 1px solid var(--border); padding: 8px 14px; border-radius: 20px; font-size: 0.88rem; color: var(--text-dim); transition: border-color .2s, color .2s; }
.chips li:hover { border-color: var(--accent); color: var(--text); }

/* ---------- Proyectos ---------- */
.projects { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 22px; }
.project { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; transition: transform .25s ease, border-color .25s ease; }
.project:hover { transform: translateY(-6px); border-color: var(--accent); }
.project-tag { display: inline-block; font-family: var(--mono); font-size: 0.75rem; color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); padding: 5px 12px; border-radius: 14px; margin-bottom: 16px; }
.project h3 { font-size: 1.3rem; margin-bottom: 12px; }
.project p { color: var(--text-dim); font-size: 0.96rem; margin-bottom: 18px; }
.project-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.project-meta li { font-family: var(--mono); font-size: 0.76rem; color: var(--text-dim); background: var(--bg-alt); border: 1px solid var(--border); padding: 4px 10px; border-radius: 12px; }

/* ---------- Sobre nosotros ---------- */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: start; }
.about-text p { color: var(--text-dim); margin-bottom: 18px; font-size: 1.05rem; }
.about-text .section-title { text-align: left; }
.about-list { margin-top: 24px; display: grid; gap: 14px; }
.about-list li { position: relative; padding-left: 30px; color: var(--text); }
.about-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 700; background: color-mix(in srgb, var(--accent) 14%, transparent); border-radius: 50%; width: 22px; height: 22px; display: grid; place-items: center; font-size: 0.8rem; }
.about-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.about-card h3 { font-size: 1.25rem; margin-bottom: 22px; }
.steps { counter-reset: step; display: grid; gap: 22px; }
.steps li { position: relative; padding-left: 50px; }
.steps li::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: 0; width: 34px; height: 34px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--on-accent); font-weight: 800; display: grid; place-items: center; font-family: var(--mono); }
.steps li span { display: block; font-weight: 700; }
.steps li small { color: var(--text-dim); font-size: 0.92rem; }

/* ---------- FAQ ---------- */
.faq { max-width: 800px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.faq-q { width: 100%; background: none; border: none; cursor: pointer; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; gap: 16px; font-size: 1.05rem; font-weight: 600; color: var(--text); text-align: left; font-family: var(--font); }
.faq-icon { font-size: 1.5rem; color: var(--accent); transition: transform .3s; flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a p { padding: 0 24px 20px; color: var(--text-dim); }

/* ---------- Contacto ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.contact-intro .section-title { text-align: left; }
.contact-intro > p { color: var(--text-dim); font-size: 1.08rem; margin-bottom: 28px; }
.contact-info { display: grid; gap: 18px; }
.contact-info li { display: flex; flex-direction: column; }
.ci-label { font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-dim); margin-bottom: 4px; }
.contact-info a { color: var(--accent); font-weight: 600; transition: opacity .2s; }
.contact-info a:hover { opacity: .8; }
.contact-briefnote { font-size: 0.88rem; color: var(--text-dim); margin: 10px 0 0; max-width: 42ch; }
.contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; display: grid; gap: 18px; }
.field { display: grid; gap: 7px; }
.field label { font-size: 0.88rem; font-weight: 600; color: var(--text-dim); }
.field input, .field textarea { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 13px 15px; color: var(--text); font-family: var(--font); font-size: 0.98rem; transition: border-color .2s, box-shadow .2s; resize: vertical; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 0.85rem; color: var(--text-dim); }
.consent input { margin-top: 3px; }
.form-result { text-align: center; font-size: 0.95rem; min-height: 1.2em; }
.form-result.success { color: var(--accent); }
.form-result.error { color: #f87171; }

/* ---------- FOOTER ---------- */
.site-footer { background: var(--bg); border-top: 1px solid var(--border); padding: 56px 0 32px; }
.footer-inner { display: grid; gap: 18px; text-align: center; justify-items: center; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; }
.footer-tagline { color: var(--text-dim); font-size: 0.95rem; }
.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; justify-content: center; }
.footer-nav a { color: var(--text-dim); font-size: 0.92rem; transition: color .2s; }
.footer-nav a:hover { color: var(--accent); }
.footer-copy { color: var(--text-dim); font-size: 0.85rem; margin-top: 8px; }

/* ---------- COOKIE BANNER ---------- */
.cookie-banner { position: fixed; bottom: 20px; left: 20px; right: 20px; max-width: 560px; margin: 0 auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; box-shadow: var(--shadow); z-index: 1100; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.cookie-banner[hidden] { display: none; }
.cookie-banner p { font-size: 0.9rem; color: var(--text-dim); flex: 1 1 280px; }
.cookie-actions { display: flex; gap: 10px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .45s var(--ease), transform .45s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Lang blocks (blog/legal) ---------- */
[data-lang-block] { display: none; }
[data-lang-block].is-active { display: revert; }

/* ---------- Páginas internas (blog/legal) ---------- */
.page { padding: 130px 0 80px; }
.page h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 20px; }
.page h2 { font-size: 1.5rem; margin: 36px 0 14px; }
.page h3 { font-size: 1.2rem; margin: 26px 0 10px; }
.page p, .page li { color: var(--text-dim); margin-bottom: 14px; }
.page ul, .page ol { padding-left: 22px; margin-bottom: 14px; }
.page ul li, .page ol li { list-style: revert; }
.page a { color: var(--accent); }
.article-meta { color: var(--text-dim); font-family: var(--mono); font-size: 0.85rem; margin-bottom: 30px; }
.article-content { max-width: 760px; }
.article-content pre { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 18px; overflow-x: auto; margin-bottom: 18px; }
.article-content code { font-family: var(--mono); font-size: 0.9rem; color: var(--accent); }
.back-link { display: inline-block; margin-bottom: 24px; color: var(--accent); font-weight: 600; }
.share { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--border); }
.share-label { font-size: .9rem; color: var(--text-dim); font-weight: 600; }
.share-btn { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--border); color: var(--text-dim); cursor: pointer; transition: color .2s, border-color .2s; }
.share-btn:hover { color: var(--accent); border-color: var(--accent); }
.share-btn svg { width: 17px; height: 17px; }
.share-copied { font-size: .85rem; color: var(--accent); font-weight: 600; }
.related { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--border); }
.related h2 { font-size: 1.2rem; margin-bottom: 14px; }
.related-list { display: grid; gap: 10px; }
.related-list a { color: var(--accent); font-weight: 600; }
.related-list a:hover { text-decoration: underline; }
.related + .share { border-top: none; margin-top: 20px; padding-top: 0; }

.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.blog-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; transition: transform .25s, border-color .25s; display: flex; flex-direction: column; }
.blog-card:hover { transform: translateY(-6px); border-color: var(--accent); }
.blog-card .blog-date { font-family: var(--mono); font-size: 0.8rem; color: var(--accent); margin-bottom: 12px; }
.blog-card h2 { font-size: 1.3rem; margin: 0 0 12px; }
.blog-card p { color: var(--text-dim); flex: 1; margin-bottom: 18px; }
.blog-card .read-more { color: var(--accent); font-weight: 600; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px) {
  .nav { position: fixed; top: 72px; right: 0; bottom: 0; width: min(80%, 320px); flex-direction: column; align-items: flex-start; gap: 8px; background: var(--bg-alt); border-left: 1px solid var(--border); padding: 28px 24px; transform: translateX(100%); transition: transform .3s ease; overflow-y: auto; }
  .nav.open { transform: translateX(0); }
  .nav a { width: 100%; padding: 12px 0; font-size: 1.05rem; }
  .nav .nav-cta { text-align: center; margin-top: 8px; }
  .burger { display: flex; }
}
@media (max-width: 920px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-content { max-width: 640px; }
  .circuit { max-width: 380px; }
}
@media (max-width: 900px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--border); }
  .hero { padding: 130px 0 80px; }
}
@media (max-width: 480px) {
  .circuit { max-width: 300px; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat { border-right: none; border-bottom: 1px solid var(--border); }
  .stat:last-child { border-bottom: none; }
  .container { padding: 0 18px; }
  .cookie-banner { flex-direction: column; align-items: stretch; text-align: center; }
  .cookie-actions { justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* =================================================================
   CAPA PREMIUM — textura, spotlight, micro-interacciones
   ================================================================= */

/* Selección de texto con color de marca */
::selection { background: color-mix(in srgb, var(--accent) 30%, transparent); color: var(--text); }

/* Grano sutil para romper la planitud digital */
body::before { content: ""; position: fixed; inset: 0; z-index: 2000; pointer-events: none; opacity: .032;
  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='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E"); }

/* Tipografía: titulares equilibrados, párrafos sin viudas, cifras tabulares */
h1, h2, h3 { text-wrap: balance; }
.hero-sub, .section-lead { text-wrap: pretty; }
.stat-num { font-variant-numeric: tabular-nums; }

/* Foco visible (teclado) y pulsación física en botones */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.btn:active { transform: translateY(1px) scale(.985); }
.share-btn:active, .icon-btn:active { transform: scale(.92); }

/* Spotlight: las tarjetas se iluminan bajo el cursor */
.card, .project, .blog-card { position: relative; }
.card::after, .project::after, .blog-card::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .3s var(--ease);
  background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 9%, transparent), transparent 65%); }
.card:hover::after, .project:hover::after, .blog-card:hover::after { opacity: 1; }
.card:hover, .project:hover { box-shadow: var(--shadow), 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent); }

/* Entrada cinematográfica del hero (cascada) */
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.hero-content > * { animation: rise .55s var(--ease) both; }
.hero-content > *:nth-child(1) { animation-delay: .05s; }
.hero-content > *:nth-child(2) { animation-delay: .14s; }
.hero-content > *:nth-child(3) { animation-delay: .23s; }
.hero-content > *:nth-child(4) { animation-delay: .32s; }
.hero-content > *:nth-child(5) { animation-delay: .41s; }
.hero-visual { animation: rise .7s var(--ease) .3s both; }

/* Scrollbar a juego con el tema (WebKit) */
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border: 3px solid var(--bg); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--border); }

/* ---------- Ronda 2: bento, CTA intermedia, nav viva ---------- */

/* Servicios en bento asimétrico (rompe la rejilla uniforme) */
@media (min-width: 901px) {
  #services .cards { grid-template-columns: repeat(3, 1fr); }
  #services .card:first-child { grid-column: span 2; }
  #services .card:first-child { background: linear-gradient(135deg, var(--surface), color-mix(in srgb, var(--accent) 7%, var(--surface))); }
  #services .card:last-child { background: linear-gradient(315deg, var(--surface), color-mix(in srgb, var(--accent-2) 7%, var(--surface))); }
}

/* Banda CTA intermedia */
.cta-band { position: relative; padding: 88px 0; overflow: hidden; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, var(--bg-alt)), color-mix(in srgb, var(--accent-2) 12%, var(--bg-alt))); }
.cta-band::before { content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(color-mix(in srgb, var(--border) 60%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in srgb, var(--border) 60%, transparent) 1px, transparent 1px);
  background-size: 44px 44px; mask-image: radial-gradient(ellipse 60% 80% at 50% 50%, #000 20%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse 60% 80% at 50% 50%, #000 20%, transparent 75%); }
.cta-inner { position: relative; text-align: center; }
.cta-inner h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); margin-bottom: 12px; }
.cta-inner p { color: var(--text-dim); max-width: 560px; margin: 0 auto 28px; }

/* Etiquetas de cifras en mono (sabor ingeniería) */
.stat-label { font-family: var(--mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; }

/* Navegación viva: subrayado animado + sección activa (scrollspy) */
.nav a:not(.nav-cta) { position: relative; }
.nav a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 100%; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .25s var(--ease); }
.nav a:not(.nav-cta):hover::after, .nav a.active:not(.nav-cta)::after { transform: scaleX(1); }
.nav a.active { color: var(--text); }

/* ---------- Hero v3: acento, badge live, terminal, tilt, aurora ---------- */
.hero-title .grad { background: linear-gradient(120deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-title { font-size: clamp(2.3rem, 4.8vw, 3.9rem); }

.hero-badge { display: inline-flex; align-items: center; gap: 9px; padding: 7px 15px; border: 1px solid var(--border); border-radius: 22px; background: color-mix(in srgb, var(--surface) 70%, transparent); backdrop-filter: blur(6px); }
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); animation: dotPulse 2s ease-in-out infinite; flex-shrink: 0; }
@keyframes dotPulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.hero-term { margin-top: 26px; font-family: var(--mono); font-size: .85rem; color: var(--text-dim); min-height: 1.4em; display: flex; align-items: baseline; }
.term-prompt { color: var(--accent); font-weight: 600; }
.term-caret { display: inline-block; width: 8px; height: 1.05em; margin-left: 3px; background: var(--accent); align-self: center; animation: caretBlink 1.05s step-end infinite; }
@keyframes caretBlink { 50% { opacity: 0; } }

.circuit { transition: transform .35s var(--ease); will-change: transform; }

.hero-bg::after { content: ""; position: absolute; width: 540px; height: 540px; left: 52%; top: -12%; border-radius: 50%; filter: blur(80px); opacity: .45; pointer-events: none;
  background: radial-gradient(circle at 35% 35%, color-mix(in srgb, var(--accent) 35%, transparent), transparent 60%), radial-gradient(circle at 70% 70%, color-mix(in srgb, var(--accent-2) 32%, transparent), transparent 60%);
  animation: drift 16s ease-in-out infinite alternate; }
@keyframes drift { from { transform: translate(-50px, 0) scale(1); } to { transform: translate(60px, 50px) scale(1.18); } }