:root {
  --ink: #172b4d;
  --muted: #64748b;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --blue-soft: #eaf2ff;
  --paper: #fafcff;
  --line: #e2e8f0;
  --surface: #fff;
  --header: rgba(250,252,255,.95);
  --on-blue: #fff;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --ink: #e2e8f0;
  --muted: #a6b5cb;
  --blue: #60a5fa;
  --blue-dark: #93c5fd;
  --blue-soft: #1b3052;
  --paper: #0b1220;
  --line: #2a3b55;
  --surface: #142035;
  --header: rgba(11,18,32,.95);
  --on-blue: #0b1730;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.7 "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: inherit; text-decoration: none; }
button, summary { font: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.045em; }
::selection { background: #bfdbfe; color: var(--ink); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
.container { width: min(1160px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 100; padding: 10px 20px; background: var(--surface); }
.skip-link:focus { top: 10px; }
.site-header { position: sticky; top: 0; z-index: 20; background: var(--header); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.header-inner { height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { width: 235px; flex-shrink: 0; }
.brand img { width: 100%; height: auto; }
:root[data-theme="dark"] .brand img { filter: brightness(1.8); }
.desktop-nav { display: flex; align-items: center; gap: 26px; margin-left: auto; font-size: 14px; font-weight: 600; }
.theme-toggle { flex-shrink: 0; display: grid; place-items: center; width: 42px; height: 42px; padding: 0; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); color: var(--ink); cursor: pointer; font-size: 25px; line-height: 1; transition: background .2s, transform .2s; }
.theme-toggle[hidden] { display: none; }
.theme-toggle:hover { background: var(--blue-soft); transform: translateY(-2px); }
.theme-sun, :root[data-theme="dark"] .theme-moon { display: none; }
:root[data-theme="dark"] .theme-sun { display: inline; }
.desktop-nav > a:not(.button):hover, .footer-links a:hover { color: var(--blue); }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 12px 22px; border: 1px solid var(--blue); border-radius: 9px; background: var(--blue); color: var(--on-blue); font-size: 14px; font-weight: 650; line-height: 1.4; transition: background .2s, transform .2s, box-shadow .2s; }
.button:hover { background: var(--blue-dark); transform: translateY(-2px); box-shadow: 0 6px 18px #2563eb20; }
.button i { transition: transform .2s; }
.button:hover .lni-arrow-right { transform: translateX(4px); }
.button-small { min-height: 42px; padding: 10px 18px; }
.button-outline { background: transparent; color: var(--ink); border-color: #cbd5e1; }
.button-outline:hover { background: var(--blue-soft); }
.mobile-menu { display: none; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--blue); font-size: 11px; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.dot { width: 7px; height: 7px; display: inline-block; border-radius: 50%; background: #3b82f6; flex-shrink: 0; }
.hero { position: relative; overflow: hidden; padding: 76px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.08fr 1fr; align-items: center; gap: 64px; }
.hero .eyebrow { padding: 7px 12px; border: 1px solid #dbeafe; background: #eff6ff; border-radius: 6px; letter-spacing: .055em; }
.hero h1 { margin: 24px 0; font-size: clamp(44px, 5.3vw, 70px); font-weight: 750; line-height: 1.08; }
.hero h1 span { color: var(--blue); }
.hero-copy > p { max-width: 470px; color: var(--muted); font-size: 16px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.hero-note { display: flex; align-items: center; gap: 8px; margin-top: 20px; color: var(--muted); font-size: 12px; }
.hero-note i { color: var(--blue); }
.network-visual { position: relative; isolation: isolate; padding: 24px 0 26px; }
.network-visual::before { content: ""; position: absolute; inset: -40px -35px; z-index: -1; border-radius: 50%; background: radial-gradient(ellipse, #dbeafe 0%, transparent 68%); }
.network-panel { border: 1px solid var(--line); border-radius: 16px; background: var(--surface); box-shadow: 0 20px 60px #172b4d10; overflow: hidden; transform: rotate(-2deg); }
.panel-top { display: flex; align-items: center; justify-content: space-between; padding: 17px 22px; border-bottom: 1px solid var(--line); font-size: 12px; font-weight: 650; }
.panel-brand { display: flex; align-items: center; gap: 8px; }
.panel-brand i { color: var(--blue); font-size: 18px; }
.panel-top > span { color: var(--muted); font-size: 10px; font-weight: 400; }
.topology { position: relative; height: 264px; display: flex; justify-content: center; align-items: center; background-image: radial-gradient(#dce6f4 1px, transparent 1px); background-size: 18px 18px; }
.topology::before { content: ""; position: absolute; width: 68%; height: 1px; background: #93b7eb; }
.topology::after { content: ""; position: absolute; height: 155px; width: 1px; background: #93b7eb; }
.server { z-index: 2; width: 106px; padding: 16px 12px; border: 1px solid var(--line); border-radius: 14px; background: var(--blue-soft); box-shadow: 0 8px 20px #172b4d10; }
.server-label { margin-bottom: 9px; text-align: center; color: var(--blue); font-size: 9px; font-weight: 800; letter-spacing: .08em; }
.server-slot { display: flex; align-items: center; gap: 5px; height: 24px; margin-top: 5px; padding: 0 8px; border-radius: 4px; background: #1e3a6d; }
.server-slot::before { content: ""; width: 4px; height: 4px; background: #93c5fd; border-radius: 50%; }
.server-slot::after { content: ""; width: 33px; height: 3px; margin-left: auto; background: #587cae; border-radius: 2px; }
.network-node { position: absolute; z-index: 2; width: 48px; height: 48px; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; color: var(--blue); font-size: 22px; box-shadow: 0 4px 14px #172b4d08; }
.node-top { top: 22px; left: calc(50% - 24px); }
.node-bottom { bottom: 20px; left: calc(50% - 24px); }
.node-left { left: 11%; top: 108px; }
.node-right { right: 11%; top: 108px; }
.panel-bottom { padding: 18px 22px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); background: var(--paper); }
.panel-bottom div + div { border-left: 1px solid var(--line); padding-left: 18px; }
.panel-bottom strong { display: block; font-size: 13px; }
.panel-bottom span { color: var(--muted); font-size: 10px; }
.float-card { position: absolute; z-index: 3; display: flex; align-items: center; gap: 12px; padding: 13px 17px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); box-shadow: 0 12px 30px #172b4d12; }
:root[data-theme="dark"] .network-visual::before { background: radial-gradient(ellipse, #1e3a5f 0%, transparent 68%); }
:root[data-theme="dark"] .topology { background-image: radial-gradient(#2a3b55 1px, transparent 1px); }
.float-card > i { display: grid; place-items: center; width: 36px; height: 36px; background: var(--blue-soft); color: var(--blue); border-radius: 9px; font-size: 19px; }
.float-card strong { display: block; font-size: 12px; line-height: 1.5; }
.float-card span { color: var(--muted); font-size: 10px; }
.float-top { top: 0; right: -18px; }
.float-bottom { bottom: 4px; left: -24px; }
.trust-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 30px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trust-item { display: flex; align-items: center; gap: 13px; }
.trust-item > i { font-size: 23px; color: var(--blue); }
.trust-item strong { display: block; font-size: 13px; }
.trust-item span { display: block; color: var(--muted); font-size: 11px; }
.section { padding: 88px 0; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 32px; margin-bottom: 34px; }
.section-heading h2, .faq-heading h2 { margin-top: 12px; font-size: clamp(30px, 3.5vw, 42px); }
.section-heading > p { max-width: 340px; color: var(--muted); font-size: 14px; }
.services-list { display: grid; gap: 80px; padding-top: 24px; }
.service-row { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 64px; }
.service-row:nth-child(even) .service-image { grid-column: 1; grid-row: 1; }
.service-row:nth-child(even) .service-copy { grid-column: 2; grid-row: 1; }
.service-copy h3 { margin-top: 14px; font-size: clamp(30px, 3vw, 38px); }
.service-copy > p { margin: 20px 0; color: var(--muted); font-size: 15px; }
.service-copy ul { padding: 0; margin: 0 0 26px; list-style: none; font-size: 13px; }
.service-copy li { display: flex; gap: 9px; align-items: baseline; margin-top: 7px; }
.service-copy li i { color: var(--blue); font-size: 11px; }
.service-image { min-width: 0; border-radius: 18px; box-shadow: 0 14px 40px #172b4d10; overflow: hidden; }
.service-image img { width: 100%; height: auto; transition: transform .5s ease; }
.service-image:hover img { transform: scale(1.025); }
.faq-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 80px; }
.faq-heading > p { margin: 20px 0; color: var(--muted); font-size: 14px; max-width: 300px; }
.text-link { display: inline-flex; align-items: center; gap: 9px; color: var(--blue); font-size: 13px; font-weight: 650; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 22px 32px 22px 0; cursor: pointer; list-style: none; font-size: 14px; font-weight: 600; }
.faq-list summary::-webkit-details-marker, .mobile-menu summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 2px; top: 18px; color: var(--blue); font-size: 22px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: 0 28px 22px 0; color: var(--muted); font-size: 13px; }
.cta { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 50px; border-radius: 24px; background: #17376b; overflow: hidden; color: white; }
.cta::after { content: ""; position: absolute; width: 380px; height: 380px; border: 1px solid #ffffff0c; border-radius: 50%; right: -70px; top: -150px; box-shadow: 0 0 0 45px #ffffff03, 0 0 0 90px #ffffff03; pointer-events: none; }
.cta > * { position: relative; z-index: 1; }
.cta .eyebrow { color: #bfdbfe; }
.cta h2 { margin-top: 14px; font-size: clamp(28px, 3vw, 38px); }
.cta p { margin-top: 14px; color: #c2d4ed; font-size: 13px; }
.cta-actions { display: flex; flex-direction: column; align-items: center; gap: 15px; flex-shrink: 0; }
.cta .button { background: #dbeafe; border-color: #dbeafe; color: #17376b; padding-inline: 28px; }
.cta .button:hover { background: #bfdbfe; }
.cta .text-link { color: #dbeafe; font-size: 12px; }
.site-footer { padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr .8fr .8fr 1fr; gap: 48px; padding-bottom: 42px; }
.footer-about .brand { display: block; width: 220px; }
.footer-about p { margin-top: 20px; max-width: 280px; color: var(--muted); font-size: 12px; }
.footer-grid h3 { margin: 4px 0 19px; font-size: 13px; letter-spacing: 0; }
.footer-links { display: flex; flex-direction: column; gap: 10px; color: var(--muted); font-size: 12px; }
.footer-links address { font-style: normal; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 22px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.footer-bottom a:hover { text-decoration: underline; }
.footer-location { display: flex; align-items: center; gap: 7px; }
.footer-location .dot { width: 5px; height: 5px; }
.whatsapp-float { position: fixed; right: 24px; bottom: 24px; z-index: 15; width: 52px; height: 52px; display: grid; place-items: center; border: 3px solid var(--surface); border-radius: 50%; background: var(--blue); color: var(--on-blue); font-size: 26px; box-shadow: 0 5px 20px #172b4d25; transition: transform .2s, background .2s; }
.whatsapp-float:hover { background: var(--blue-dark); transform: translateY(-3px); }

@keyframes enter {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  50% { transform: translateY(-8px); }
}
@media (prefers-reduced-motion: no-preference) {
  .hero-copy > * { animation: enter .7s both; }
  .hero-copy h1 { animation-delay: .1s; }
  .hero-copy > p { animation-delay: .2s; }
  .hero-actions { animation-delay: .3s; }
  .hero-note { animation-delay: .4s; }
  .network-visual { animation: enter .9s .2s both; }
  .float-card { animation: float 4s ease-in-out 1s; }
  .float-bottom { animation-delay: 1.6s; }
  .service-copy, .service-image, .section-heading, .faq-grid, .cta { transition: opacity .7s ease, translate .7s ease; }
  .service-image { transition-delay: .1s; }
  .reveal-pending:not(:focus-within) { opacity: 0; translate: 0 24px; }
  .faq-list details[open] p, .mobile-menu[open] nav { animation: enter .25s ease both; }
}

@media (min-width: 1440px) {
  .hero { padding-top: 100px; padding-bottom: 88px; }
}
@media (max-width: 1024px) {
  .desktop-nav { gap: 20px; }
  .brand { width: 205px; }
  .hero-grid { gap: 40px; }
  .hero h1 { font-size: 54px; }
  .float-top { right: -8px; }
  .float-bottom { left: -12px; }
  .service-row { gap: 36px; }
  .footer-grid { gap: 28px; }
}
@media (max-width: 900px) {
  .container { width: calc(100% - 40px); }
  .header-inner { height: 74px; }
  .theme-toggle { margin-left: auto; }
  .desktop-nav { display: none; }
  .mobile-menu { display: block; }
  .mobile-menu summary { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 8px; cursor: pointer; list-style: none; font-size: 21px; }
  .mobile-menu[open] summary { background: var(--blue-soft); }
  .mobile-menu nav { position: absolute; top: 74px; left: 0; right: 0; display: flex; flex-direction: column; gap: 6px; padding: 16px 20px 20px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 12px 20px #172b4d0a; }
  .mobile-menu nav > a:not(.button) { padding: 9px 0; font-size: 14px; }
  .hero { padding: 48px 0 44px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-copy { max-width: 580px; }
  .hero h1 { font-size: clamp(46px, 8vw, 64px); }
  .network-visual { width: min(460px, calc(100% - 24px)); margin: 0 auto; }
  .trust-bar { grid-template-columns: repeat(2, 1fr); gap: 24px 20px; padding: 26px 0; }
  .section { padding: 64px 0; }
  .section-heading { align-items: start; flex-direction: column; gap: 16px; }
  .section-heading > p { max-width: 480px; }
  .faq-grid { grid-template-columns: 1fr; gap: 32px; }
  .faq-heading > p { max-width: 480px; }
  .cta { padding: 36px; align-items: start; flex-direction: column; gap: 28px; }
  .cta-actions { align-items: start; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .footer-bottom { padding-right: 52px; }
}
@media (max-width: 767px) {
  .services-list { gap: 56px; padding-top: 12px; }
  .service-row { grid-template-columns: 1fr; gap: 28px; }
  .service-row:nth-child(even) .service-image, .service-row:nth-child(even) .service-copy { grid-column: auto; grid-row: auto; }
  .service-image { width: 100%; max-width: 548px; margin-inline: auto; }
}
@media (max-width: 480px) {
  .header-inner { gap: 10px; }
  .header-inner .brand { width: min(195px, calc(100% - 104px)); }
  .hero h1 { font-size: 46px; }
  .hero .eyebrow { font-size: 9px; }
  .hero-copy > p { font-size: 14px; }
  .hero-actions { gap: 10px; }
  .hero-actions .button { padding-inline: 16px; font-size: 12px; }
  .hero-note { font-size: 11px; }
  .network-visual { margin-top: 8px; }
  .panel-top { padding-inline: 16px; }
  .panel-bottom { padding: 15px; }
  .panel-bottom div + div { padding-left: 12px; }
  .panel-bottom strong { font-size: 11px; }
  .panel-bottom span { font-size: 9px; }
  .float-card { padding: 10px 12px; gap: 9px; }
  .float-card strong { font-size: 11px; }
  .float-card span { font-size: 9px; }
  .trust-item { gap: 9px; }
  .trust-item > i { font-size: 20px; }
  .trust-item strong { font-size: 12px; }
  .trust-item span { font-size: 10px; }
  .service-copy h3, .section-heading h2, .faq-heading h2 { font-size: 32px; }
  .service-copy > p { font-size: 14px; }
  .cta { padding: 28px; }
  .footer-grid { gap: 32px 20px; }
  .footer-about { grid-column: 1 / -1; }
  .footer-contact { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .whatsapp-float { right: 16px; bottom: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal-pending { opacity: 1; translate: none; }
}
