/* onaflux.com. Colores y fuentes de la marca: Saira (alojada en /fonts), verde
   azulado #1D3F44 / #3A6E73, turquesa del logotipo #6AACB1, gris #6D6E70.
   Sin JavaScript (la CSP lo prohíbe): preguntas y animaciones solo con CSS.
   Modo oscuro según el sistema; las secciones .dark son oscuras en los dos. */
@font-face { font-family: 'Saira Semi Condensed'; font-weight: 400; font-display: swap; src: url(/fonts/saira-semi-condensed-400.woff2) format('woff2'); }
@font-face { font-family: 'Saira Semi Condensed'; font-weight: 600; font-display: swap; src: url(/fonts/saira-semi-condensed-600.woff2) format('woff2'); }
@font-face { font-family: 'Saira Extra Condensed'; font-weight: 600; font-display: swap; src: url(/fonts/saira-extra-condensed-600.woff2) format('woff2'); }
@font-face { font-family: 'Saira Extra Condensed'; font-weight: 700; font-display: swap; src: url(/fonts/saira-extra-condensed-700.woff2) format('woff2'); }

:root {
  --ink: #1D3F44; --ink-2: #3A6E73; --teal: #6AACB1; --teal-2: #95C4C8; --teal-3: #BEDBDD; --grey: #6D6E70;
  --deep: #0B1F22; --deep-2: #132F34; --ok: #5FBF8F;
  --bg: #FFFFFF; --bg-2: #F2F7F8; --surface: #FFFFFF; --line: #D6E5E7;
  --text: #17353A; --muted: #4E686C; --link: #2F6267; --brand-ona: #6D6E70;
  --accent: #1D3F44; --accent-hover: #3A6E73; --on-accent: #FFFFFF;
  --shadow: 0 1px 2px rgba(11, 31, 34, .05), 0 12px 32px -12px rgba(11, 31, 34, .18);
  --radius: 16px;
  --head: 'Saira Extra Condensed', 'Arial Narrow', sans-serif;
  --body: 'Saira Semi Condensed', 'Arial Narrow', Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0C1D20; --bg-2: #10272B; --surface: #132D32; --line: #234449;
    --text: #E2EEEF; --muted: #A6C1C4; --link: #8CC3C7; --brand-ona: #B4B6B8;
    --accent: #6AACB1; --accent-hover: #95C4C8; --on-accent: #0B1F22;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px -12px rgba(0, 0, 0, .6);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 1.125rem/1.6 var(--body); }
img, svg { max-width: 100%; }
img { height: auto; }
a { color: var(--link); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--text); }
:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--head); line-height: 1.05; margin: 0 0 .45em; letter-spacing: .005em; text-wrap: balance; }
h1 { font-size: clamp(2.6rem, 6.4vw, 4.6rem); font-weight: 700; }
h2 { font-size: clamp(2rem, 4.2vw, 3rem); font-weight: 700; }
h3 { font-size: 1.6rem; font-weight: 600; }
p { margin: 0 0 1em; text-wrap: pretty; }
ul { padding-left: 1.2em; }
.icon { width: 24px; height: 24px; flex: none; }
.icon-inline { width: 1em; height: 1em; vertical-align: -.12em; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; background: var(--ink); color: #fff; padding: 6px 10px; z-index: 30; }

/* Cabecera */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent); }
.bar { display: flex; align-items: center; gap: 24px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 700 1.9rem/1 var(--head); letter-spacing: .02em; }
.brand .ona { color: var(--brand-ona); }
.brand .flux { color: var(--teal); }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a { color: var(--text); text-decoration: none; font-weight: 600; padding: 8px 12px; border-radius: 999px; }
.nav a:hover { background: var(--bg-2); }
.bar-end { display: flex; align-items: center; gap: 10px; }
.lang { font-weight: 600; text-decoration: none; color: var(--muted); padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: .9rem; letter-spacing: .06em; }
.lang:hover { color: var(--text); border-color: var(--teal); }

/* Botones */
.button { display: inline-flex; align-items: center; gap: 10px; background: var(--accent); color: var(--on-accent); text-decoration: none; font-weight: 600; padding: 13px 22px; border-radius: 999px; border: 1px solid transparent; transition: background .2s, transform .2s, box-shadow .2s; }
.button:hover { background: var(--accent-hover); color: var(--on-accent); transform: translateY(-1px); box-shadow: var(--shadow); }
.button .icon { width: 20px; height: 20px; }
.button-sm { padding: 8px 16px; font-size: 1rem; }
.button-ghost { background: transparent; color: inherit; border-color: currentColor; }
.button-ghost:hover { background: rgba(255, 255, 255, .08); color: inherit; }
.button-light { background: var(--teal); color: var(--deep); }
.button-light:hover { background: var(--teal-3); color: var(--deep); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Secciones oscuras (hero, bandas) */
.dark { position: relative; overflow: hidden; color: #E6F1F2; background: radial-gradient(1200px 600px at 85% -10%, rgba(106, 172, 177, .28), transparent 60%), radial-gradient(800px 500px at -10% 110%, rgba(58, 110, 115, .35), transparent 60%), linear-gradient(160deg, var(--deep) 0%, var(--deep-2) 100%); }
.dark::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(149, 196, 200, .07) 1px, transparent 1px), linear-gradient(90deg, rgba(149, 196, 200, .07) 1px, transparent 1px); background-size: 40px 40px; -webkit-mask-image: radial-gradient(ellipse at 70% 30%, #000 20%, transparent 70%); mask-image: radial-gradient(ellipse at 70% 30%, #000 20%, transparent 70%); pointer-events: none; }
.dark > * { position: relative; }
.dark a:not(.button) { color: var(--teal-2); }
.dark a:not(.button):hover { color: #fff; }
.dark .lead { color: #C3DBDD; }

.hero { padding: 88px 0 96px; }
.hero-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: center; }
.hero h1 { max-width: 17ch; font-size: clamp(2.6rem, 5.4vw, 4.2rem); }
.hero h1 em, .page-hero h1 em { font-style: normal; color: var(--teal); }
.lead { font-size: 1.3rem; max-width: 36em; }
.badge { max-width: 100%; display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px 6px 10px; border-radius: 999px; border: 1px solid rgba(149, 196, 200, .35); background: rgba(106, 172, 177, .12); color: var(--teal-3); font-weight: 600; font-size: .95rem; margin: 0 0 22px; }
.badge .icon { width: 18px; height: 18px; color: var(--teal); }
.pixels { position: absolute; top: 28px; right: -10px; width: min(420px, 45vw); height: auto; fill: var(--teal); pointer-events: none; }
.px { opacity: .5; }
.px.t2 { opacity: .35; fill: var(--teal-2); }
.px.t3 { opacity: .2; fill: var(--teal-2); }
.px.t4 { opacity: .1; fill: var(--teal-3); }
@media (prefers-reduced-motion: no-preference) {
  .px { animation: twinkle 6s ease-in-out infinite; }
  .px.t2 { animation-delay: -1.5s; } .px.t3 { animation-delay: -3s; } .px.t4 { animation-delay: -4.5s; }
  @keyframes twinkle { 50% { opacity: .05; } }
  .rise { animation: rise .7s cubic-bezier(.2, .7, .2, 1) both; }
  .rise-2 { animation-delay: .12s; }
  @keyframes rise { from { opacity: 0; transform: translateY(14px); } }
}

/* Panel de revisión (ilustración del hero) */
.panel { margin: 0; background: linear-gradient(180deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .03)); border: 1px solid rgba(149, 196, 200, .22); border-radius: 20px; padding: 22px; box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .6); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; font-size: .85rem; color: var(--teal-3); }
.status { display: inline-flex; align-items: center; gap: 8px; text-transform: none; letter-spacing: 0; color: #CFEBDD; font-size: .95rem; }
.status::before { content: ''; width: 9px; height: 9px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(95, 191, 143, .2); }
.panel ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.panel li { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: 12px; background: rgba(11, 31, 34, .45); border: 1px solid rgba(149, 196, 200, .1); }
.panel li .icon { width: 20px; height: 20px; color: var(--teal); }
.panel li span { flex: 1; }
.panel li b { font-weight: 600; font-size: .9rem; color: #CFEBDD; background: rgba(95, 191, 143, .14); padding: 2px 10px; border-radius: 999px; white-space: nowrap; }
.panel figcaption { margin-top: 12px; font-size: .9rem; color: #9DBDC0; }

/* Bloques */
.block { padding: 96px 0; }
.block-alt { background: var(--bg-2); }
.kicker { display: inline-block; text-transform: uppercase; letter-spacing: .16em; font-weight: 600; color: var(--link); font-size: .9rem; margin-bottom: 10px; }
.dark .kicker { color: var(--teal); }
.section-head { max-width: 46em; margin-bottom: 44px; }
.section-head p { color: var(--muted); font-size: 1.2rem; }
.dark .section-head p { color: #B9D3D5; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { position: relative; display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: transform .25s, box-shadow .25s, border-color .25s; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--teal) 60%, var(--line)); }
.card p { color: var(--muted); }
.card ul { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 6px; }
.card li { display: flex; gap: 10px; }
.card li .icon { width: 20px; height: 20px; margin-top: 4px; color: var(--teal); }
.card .more { margin-top: auto; font-weight: 600; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.card .more::after { content: ''; position: absolute; inset: 0; border-radius: var(--radius); }
.card .more .icon { width: 18px; height: 18px; transition: transform .2s; }
.card:hover .more .icon { transform: translateX(4px); }
.tile-icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; background: linear-gradient(135deg, var(--ink), var(--ink-2)); color: #fff; margin-bottom: 20px; }
.tile-icon .icon { width: 26px; height: 26px; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.steps li { counter-increment: step; padding: 26px 22px; border-top: 2px solid var(--teal); background: linear-gradient(180deg, var(--bg-2), transparent); border-radius: 0 0 var(--radius) var(--radius); }
.steps li::before { content: counter(step, decimal-leading-zero); display: block; font: 700 2.6rem/1 var(--head); color: var(--teal); margin-bottom: 12px; }
.steps h3 { font-size: 1.45rem; }
.steps p { margin: 0; color: var(--muted); }

.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.value { padding: 24px; border-radius: var(--radius); background: rgba(255, 255, 255, .05); border: 1px solid rgba(149, 196, 200, .16); }
.value .icon { width: 28px; height: 28px; color: var(--teal); margin-bottom: 14px; }
.value h3 { font-size: 1.4rem; color: #fff; }
.value p { margin: 0; color: #B9D3D5; font-size: 1.05rem; }

.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.split-top { align-items: start; }
.chips { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { padding: 6px 14px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-weight: 600; font-size: 1rem; }
.chips li.near { background: transparent; color: var(--muted); font-weight: 400; }
.radar { position: relative; aspect-ratio: 1; max-width: 420px; width: 100%; margin: 0 auto; display: grid; place-items: center; }
.radar svg.rings { position: absolute; inset: 0; width: 100%; height: 100%; }
.radar .ring { fill: none; stroke: var(--teal); stroke-opacity: .4; }
.radar .ring.r2 { stroke-opacity: .25; } .radar .ring.r3 { stroke-opacity: .14; stroke-dasharray: 3 5; }
.radar .dot { fill: var(--teal); }
.radar .lbl { font: 600 13px var(--body); fill: var(--muted); }
.radar .center { position: relative; display: grid; place-items: center; align-content: center; text-align: center; gap: 4px; width: 42%; aspect-ratio: 1; border-radius: 50%; background: linear-gradient(135deg, var(--ink), var(--ink-2)); color: #fff; box-shadow: 0 20px 50px -20px rgba(29, 63, 68, .7); font: 700 1.45rem/1.05 var(--head); padding: 12px; }
.radar .center .icon { width: 28px; height: 28px; color: var(--teal-3); }

.faq { display: grid; gap: 10px; max-width: 860px; }
.faq-item { border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.faq-item summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 22px; font-weight: 600; font-size: 1.15rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; flex: none; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--bg-2); color: var(--link); font: 600 1.4rem/1 var(--body); transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item > div { padding: 0 22px 18px; color: var(--muted); }
.faq-item > div p:last-child { margin: 0; }

.cta { padding: 88px 0; text-align: center; }
.cta h2 { max-width: 18ch; margin-left: auto; margin-right: auto; }
.cta p { max-width: 38em; margin-left: auto; margin-right: auto; color: #C3DBDD; font-size: 1.2rem; }
.cta .actions { justify-content: center; }

/* Páginas de servicio */
.page-hero { padding: 40px 0 72px; }
.page-hero h1 { max-width: 18ch; font-size: clamp(2.4rem, 5.6vw, 4rem); }
.crumbs ol { list-style: none; padding: 0; margin: 0 0 36px; display: flex; flex-wrap: wrap; gap: 6px; font-size: .95rem; }
.crumbs li + li::before { content: '/'; margin-right: 6px; opacity: .5; }
.crumbs [aria-current] { opacity: .8; }
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feature { display: flex; gap: 18px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.feature .tile-icon { width: 46px; height: 46px; margin: 0; flex: none; border-radius: 12px; }
.feature h3 { font-size: 1.35rem; margin-bottom: .3em; }
.feature p { margin: 0; color: var(--muted); }
.checklist { list-style: none; padding: 0; margin: 0 0 1em; display: grid; gap: 12px; }
.checklist li { display: flex; gap: 12px; }
.checklist .icon { color: var(--teal); margin-top: 3px; }
.aside { padding: 28px; border-radius: var(--radius); background: var(--bg-2); border: 1px solid var(--line); }
.aside h3 { font-size: 1.5rem; }
.aside p:last-child { margin: 0; }
.related { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.related a { padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-weight: 600; }
.related a:hover { border-color: var(--teal); }

/* Páginas legales */
.prose { max-width: 780px; padding-top: 40px; padding-bottom: 72px; }
.prose h1 { font-size: clamp(2.4rem, 5vw, 3.2rem); }
.prose h2 { font-size: 1.7rem; margin-top: 1.4em; }
.prose .crumbs ol { margin-bottom: 24px; }
.small { font-size: .9rem; color: var(--muted); }
.note { background: var(--bg-2); border-left: 4px solid var(--teal); padding: 10px 14px; font-size: 1rem; }

/* Pie */
.foot { background: var(--bg-2); border-top: 1px solid var(--line); padding: 56px 0 28px; font-size: 1rem; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; }
.foot-about .brand { margin-bottom: 14px; }
.foot-about p { color: var(--muted); }
.foot h2 { font: 600 .85rem/1.4 var(--body); text-transform: uppercase; letter-spacing: .14em; color: var(--muted); margin: 6px 0 12px; }
.foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.foot ul a { color: var(--text); text-decoration: none; }
.foot ul a:hover { color: var(--link); text-decoration: underline; }
.foot-base { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); }
.foot-base p { margin: 0; font-size: .9rem; color: var(--muted); }

@media (max-width: 960px) {
  .hero-grid, .split { grid-template-columns: 1fr; gap: 44px; }
  .cards { grid-template-columns: 1fr; }
  .steps, .values { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr; }
  .nav { display: none; }
  .bar-end { margin-left: auto; }
}
@media (max-width: 600px) {
  body { font-size: 1.06rem; }
  .brand { font-size: 1.6rem; }
  .brand img { width: 28px; height: 26px; }
  .hero { padding: 56px 0 64px; }
  .lead { font-size: 1.15rem; }
  .block { padding: 64px 0; }
  .steps, .values { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-about { grid-column: 1 / -1; }
  .feature { flex-direction: column; gap: 12px; }
  .pixels { width: 70vw; opacity: .7; }
}