:root {
    --navy-950: #07101f;
    --navy-900: #0b1426;
    --navy-800: #111f38;
    --blue-600: #2563eb;
    --blue-500: #3378ff;
    --blue-100: #dbeafe;
    --teal-500: #14b8a6;
    --teal-100: #ccfbf1;
    --slate-900: #182132;
    --slate-700: #3d495e;
    --slate-600: #596579;
    --slate-500: #718096;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --surface: #f6f8fc;
    --white: #ffffff;
    --success: #20c997;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .04), 0 6px 24px rgba(15, 23, 42, .05);
    --shadow-lg: 0 26px 80px rgba(5, 15, 35, .22);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 30px;
    --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body {
    margin: 0;
    color: var(--slate-900);
    background: var(--surface);
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -70px; z-index: 999; padding: 12px 18px; color: var(--white); background: var(--blue-600); border-radius: 8px; transition: top .2s ease; }
.skip-link:focus { top: 16px; }

.notice-bar { color: #dbe7ff; background: #050c17; font-size: 12px; line-height: 1.4; }
.notice-inner { min-height: 36px; display: flex; align-items: center; justify-content: center; gap: 10px; text-align: center; }
.age-badge { display: inline-grid; place-items: center; min-width: 27px; height: 20px; padding: 0 5px; color: #fff; border: 1px solid rgba(255,255,255,.35); border-radius: 5px; font-weight: 800; font-size: 10px; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(148,163,184,.25); backdrop-filter: blur(16px); }
.header-inner { min-height: 78px; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; color: var(--white); background: linear-gradient(145deg, var(--blue-500), var(--teal-500)); border-radius: 13px; box-shadow: 0 9px 24px rgba(37,99,235,.23); font-size: 21px; font-weight: 900; letter-spacing: -.04em; }
.brand-copy { display: flex; flex-direction: column; line-height: 1; }
.brand-copy strong { font-size: 17px; letter-spacing: .06em; }
.brand-copy small { margin-top: 6px; color: var(--slate-500); font-size: 8px; font-weight: 800; letter-spacing: .18em; }
.desktop-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.desktop-nav a { color: var(--slate-600); font-size: 14px; font-weight: 650; transition: color .2s ease; }
.desktop-nav a:hover, .desktop-nav a:focus-visible { color: var(--blue-600); }
.header-action { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 19px; color: var(--white); background: var(--navy-900); border-radius: 12px; font-size: 13px; font-weight: 750; transition: transform .2s ease, background .2s ease; }
.header-action:hover { background: var(--blue-600); transform: translateY(-1px); }
.mobile-nav { display: none; margin-left: auto; position: relative; }
.mobile-nav summary { width: 44px; height: 44px; display: grid; place-content: center; gap: 5px; list-style: none; border: 1px solid var(--slate-200); border-radius: 12px; cursor: pointer; }
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav summary span { width: 19px; height: 2px; background: var(--navy-900); border-radius: 2px; }
.mobile-nav nav { position: absolute; right: 0; top: 54px; width: 220px; padding: 10px; background: var(--white); border: 1px solid var(--slate-200); border-radius: 15px; box-shadow: var(--shadow-lg); }
.mobile-nav nav a { display: block; padding: 10px 12px; color: var(--slate-700); border-radius: 8px; font-size: 14px; font-weight: 650; }
.mobile-nav nav a:hover { color: var(--blue-600); background: var(--slate-100); }

.hero { position: relative; min-height: 650px; display: flex; align-items: center; overflow: hidden; color: var(--white); background: radial-gradient(circle at 78% 22%, #163a72 0, transparent 28%), linear-gradient(128deg, #07101f 0%, #0b1730 58%, #0b1d37 100%); }
.hero-grid { position: absolute; inset: 0; opacity: .08; background-image: linear-gradient(rgba(255,255,255,.26) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.26) 1px, transparent 1px); background-size: 54px 54px; mask-image: linear-gradient(to right, #000, transparent 78%); }
.hero-glow { position: absolute; border-radius: 999px; filter: blur(3px); pointer-events: none; }
.hero-glow-one { width: 380px; height: 380px; right: 8%; top: 8%; background: rgba(37,99,235,.14); border: 1px solid rgba(96,165,250,.16); }
.hero-glow-two { width: 230px; height: 230px; right: 24%; bottom: -12%; background: rgba(20,184,166,.11); }
.hero-layout { position: relative; z-index: 2; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 88px; padding-block: 88px; }
.hero-content { max-width: 640px; }
.eyebrow, .mini-eyebrow { display: inline-flex; align-items: center; gap: 9px; color: #73b8ff; font-size: 11px; font-weight: 850; letter-spacing: .17em; text-transform: uppercase; }
.eyebrow span { width: 27px; height: 2px; background: var(--teal-500); }
.hero h1 { max-width: 690px; margin: 20px 0 24px; font-size: clamp(42px, 5.2vw, 70px); line-height: 1.04; letter-spacing: -.046em; }
.hero-content > p { max-width: 610px; margin: 0; color: #bdc9dc; font-size: 18px; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 15px; padding: 0 21px; border-radius: 13px; font-size: 14px; font-weight: 750; transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.button-primary { color: var(--white); background: linear-gradient(135deg, var(--blue-600), #2479ff); box-shadow: 0 14px 32px rgba(37,99,235,.27); }
.button-primary:hover { transform: translateY(-2px); }
.button-ghost { color: #d5e1f2; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.04); }
.button-ghost:hover { border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.08); }
.update-line { display: flex; align-items: center; gap: 8px; margin-top: 28px; color: #8fa0ba; font-size: 12px; }
.pulse-dot { width: 7px; height: 7px; background: var(--success); border-radius: 99px; box-shadow: 0 0 0 5px rgba(32,201,151,.12); }

.hero-panel { position: relative; min-height: 470px; padding: 27px; background: linear-gradient(160deg, rgba(21,40,72,.92), rgba(8,21,42,.9)); border: 1px solid rgba(138,180,239,.2); border-radius: 28px; box-shadow: var(--shadow-lg); backdrop-filter: blur(16px); }
.hero-panel::before { content: ""; position: absolute; inset: 10px; border: 1px solid rgba(255,255,255,.04); border-radius: 21px; pointer-events: none; }
.panel-top { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.panel-label { color: #8fa7c8; font-size: 9px; font-weight: 850; letter-spacing: .17em; }
.online-pill { display: inline-flex; align-items: center; gap: 7px; padding: 5px 9px; color: #74e1be; background: rgba(32,201,151,.09); border: 1px solid rgba(32,201,151,.15); border-radius: 99px; font-size: 8px; font-weight: 850; letter-spacing: .1em; }
.online-pill i { width: 5px; height: 5px; background: #45e6b0; border-radius: 50%; box-shadow: 0 0 10px #45e6b0; }
.domain-card { position: relative; z-index: 1; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 13px; margin-top: 22px; padding: 14px; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.09); border-radius: 15px; }
.domain-icon { width: 39px; height: 39px; display: grid; place-items: center; color: #8bc3ff; background: rgba(37,99,235,.14); border-radius: 11px; font-weight: 800; }
.domain-card small { display: block; color: #7990ad; font-size: 9px; }
.domain-card strong { display: block; margin-top: 3px; color: #e7eef8; font-size: 13px; letter-spacing: .01em; }
.check { width: 26px; height: 26px; display: grid; place-items: center; color: #72e0bc; background: rgba(32,201,151,.1); border-radius: 50%; font-size: 12px; }
.signal-visual { position: relative; width: 220px; height: 220px; display: grid; place-items: center; margin: 10px auto 0; }
.orbit { position: absolute; border-radius: 50%; }
.orbit-one { inset: 11px; border: 1px solid rgba(91,149,234,.19); }
.orbit-one::before, .orbit-one::after { content: ""; position: absolute; width: 6px; height: 6px; background: var(--teal-500); border-radius: 50%; box-shadow: 0 0 14px var(--teal-500); }
.orbit-one::before { left: 24px; top: 22px; }
.orbit-one::after { right: 17px; bottom: 36px; background: var(--blue-500); box-shadow: 0 0 14px var(--blue-500); }
.orbit-two { inset: 43px; border: 1px dashed rgba(91,149,234,.24); }
.signal-core { width: 94px; height: 94px; display: grid; place-content: center; text-align: center; background: radial-gradient(circle at 50% 30%, #2867c8, #112c58); border: 1px solid rgba(125,179,255,.28); border-radius: 50%; box-shadow: 0 0 50px rgba(37,99,235,.28); }
.signal-core span { font-size: 24px; font-weight: 900; letter-spacing: .03em; }
.signal-core small { margin-top: 3px; color: #8fb7ef; font-size: 7px; font-weight: 850; letter-spacing: .17em; }
.panel-metrics { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.08); }
.panel-metrics div { padding: 17px 10px 0; text-align: center; }
.panel-metrics div + div { border-left: 1px solid rgba(255,255,255,.07); }
.panel-metrics span { display: block; color: #80bfff; font-size: 12px; font-weight: 850; }
.panel-metrics small { display: block; margin-top: 4px; color: #8191a8; font-size: 8px; line-height: 1.25; }

.status-strip { position: relative; z-index: 3; background: var(--white); border-bottom: 1px solid var(--slate-200); box-shadow: 0 8px 35px rgba(15,23,42,.04); }
.status-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.status-item { min-height: 116px; display: flex; align-items: center; gap: 14px; padding: 22px 24px; }
.status-item + .status-item { border-left: 1px solid var(--slate-200); }
.status-icon { width: 34px; height: 34px; display: grid; place-items: center; flex: 0 0 auto; color: var(--blue-600); background: var(--blue-100); border-radius: 10px; font-size: 10px; font-weight: 900; }
.status-item strong { display: block; color: var(--navy-900); font-size: 13px; }
.status-item small { display: block; margin-top: 3px; color: var(--slate-500); font-size: 10px; line-height: 1.45; }

.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; align-items: start; gap: 34px; padding-block: 72px 90px; }
.article-card { min-width: 0; padding: 48px 52px 58px; background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; color: var(--slate-500); font-size: 11px; font-weight: 650; }
.breadcrumb a { color: var(--blue-600); }
.lead { margin: 23px 0 0; color: var(--slate-700); font-size: 18px; line-height: 1.85; }
.article-section { display: grid; grid-template-columns: 42px minmax(0,1fr); gap: 18px; padding-top: 52px; }
.section-number { width: 38px; height: 38px; display: grid; place-items: center; margin-top: 2px; color: var(--blue-600); background: var(--blue-100); border-radius: 11px; font-size: 10px; font-weight: 900; }
.article-section h2, .faq-section h2 { margin: 0 0 20px; color: var(--navy-900); font-size: clamp(26px, 3vw, 35px); line-height: 1.2; letter-spacing: -.025em; }
.article-section p { margin: 0 0 18px; color: var(--slate-700); font-size: 15px; line-height: 1.9; }
.article-section p:last-child { margin-bottom: 0; }
.article-section-featured { margin-top: 50px; padding: 35px 28px 31px; background: linear-gradient(145deg, #f0f6ff, #f6fffd); border: 1px solid #dceafd; border-radius: 22px; }
.article-section-featured .section-number { color: var(--white); background: var(--blue-600); }
.info-callout { display: flex; gap: 14px; margin-top: 24px; padding: 18px 20px; background: #f0f7ff; border: 1px solid #d7e8ff; border-radius: 14px; }
.info-callout > span { width: 25px; height: 25px; display: grid; place-items: center; flex: 0 0 auto; color: var(--blue-600); background: var(--white); border: 1px solid #cfe1fb; border-radius: 50%; font: 800 12px Georgia, serif; }
.info-callout p { margin: 0; color: #3c5575; font-size: 13px; line-height: 1.7; }
.verification-list { display: grid; gap: 10px; margin: 26px 0; padding: 0; list-style: none; }
.verification-list li { display: grid; grid-template-columns: 36px 1fr; gap: 14px; align-items: start; padding: 16px 17px; background: rgba(255,255,255,.74); border: 1px solid #dce8f8; border-radius: 14px; }
.verification-list li > span { width: 30px; height: 30px; display: grid; place-items: center; color: var(--white); background: var(--navy-900); border-radius: 9px; font-size: 11px; font-weight: 850; }
.verification-list strong { display: block; color: var(--navy-900); font-size: 14px; }
.verification-list p { margin: 2px 0 0; font-size: 12px; line-height: 1.6; }
.mobile-card { display: grid; grid-template-columns: 150px 1fr; align-items: center; gap: 30px; margin-top: 28px; padding: 28px; color: var(--white); background: linear-gradient(145deg, var(--navy-900), #102649); border-radius: 22px; overflow: hidden; }
.phone-visual { position: relative; width: 110px; height: 190px; margin: auto; padding: 9px; background: #050c16; border: 1px solid #2b4669; border-radius: 23px; box-shadow: 0 18px 35px rgba(0,0,0,.3); }
.phone-top { position: absolute; z-index: 2; left: 50%; top: 10px; width: 36px; height: 5px; transform: translateX(-50%); background: #142236; border-radius: 99px; }
.phone-screen { height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 11px; background: radial-gradient(circle at 60% 25%, #184582, #0a1830 60%); border-radius: 16px; }
.mini-logo { width: 37px; height: 37px; display: grid; place-items: center; color: var(--white); background: linear-gradient(145deg, var(--blue-500), var(--teal-500)); border-radius: 11px; font-size: 17px; font-weight: 900; }
.screen-line { width: 48px; height: 4px; background: rgba(255,255,255,.15); border-radius: 99px; }
.screen-line.wide { width: 67px; }
.screen-button { width: 58px; height: 16px; margin-top: 4px; background: var(--blue-500); border-radius: 5px; }
.mobile-card h3 { margin: 9px 0 11px; font-size: 22px; line-height: 1.3; letter-spacing: -.02em; }
.mobile-card p { margin: 0; color: #aebdd2; font-size: 13px; line-height: 1.7; }

.faq-section { margin-top: 62px; padding-top: 50px; border-top: 1px solid var(--slate-200); }
.faq-section h2 { margin-top: 10px; }
.faq-list { display: grid; gap: 10px; margin-top: 25px; }
.faq-list details { background: var(--slate-100); border: 1px solid var(--slate-200); border-radius: 14px; }
.faq-list summary { min-height: 62px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px 18px; color: var(--navy-900); font-size: 14px; font-weight: 750; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { width: 25px; height: 25px; display: grid; place-items: center; flex: 0 0 auto; color: var(--blue-600); background: var(--white); border-radius: 7px; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { margin: 0; padding: 0 18px 18px; color: var(--slate-600); font-size: 13px; line-height: 1.75; }

.sidebar { position: sticky; top: 108px; display: grid; gap: 18px; }
.sidebar-card { padding: 25px; background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.sidebar-label { color: var(--blue-600); font-size: 9px; font-weight: 900; letter-spacing: .17em; }
.toc-card nav { display: grid; gap: 3px; margin-top: 17px; }
.toc-card a { display: flex; align-items: center; gap: 10px; padding: 9px 8px; color: var(--slate-600); border-radius: 8px; font-size: 12px; font-weight: 650; transition: color .2s ease, background .2s ease; }
.toc-card a:hover { color: var(--blue-600); background: var(--slate-100); }
.toc-card a span { color: #9aa8ba; font-size: 9px; font-weight: 850; }
.security-card { color: var(--white); background: linear-gradient(155deg, var(--navy-900), #102747); border-color: #183259; }
.shield { width: 43px; height: 43px; display: grid; place-items: center; margin-bottom: 17px; color: #7aebc5; background: rgba(32,201,151,.1); border: 1px solid rgba(32,201,151,.2); border-radius: 14px 14px 18px 18px; font-weight: 900; }
.security-card .sidebar-label { color: #72b4ff; }
.security-card h3 { margin: 10px 0 16px; font-size: 18px; line-height: 1.4; }
.security-card ul { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; }
.security-card li { position: relative; padding-left: 17px; color: #aebdd2; font-size: 11px; }
.security-card li::before { content: ""; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; background: var(--teal-500); border-radius: 50%; }

.closing-section { padding: 64px 0; color: var(--white); background: linear-gradient(120deg, #0b1426, #10294c); }
.closing-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 50px; }
.mini-eyebrow.light { color: #7fc2ff; }
.closing-section h2 { max-width: 570px; margin: 10px 0 0; font-size: clamp(28px, 4vw, 43px); line-height: 1.18; letter-spacing: -.035em; }
.closing-checks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.closing-checks span { min-height: 74px; display: grid; place-items: center; color: #dce9fb; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.1); border-radius: 14px; font-size: 12px; font-weight: 750; }
.closing-checks span::before { content: "✓"; display: block; color: #65ddb6; font-size: 13px; line-height: 1; }

.site-footer { color: #8c9ab0; background: #050b15; }
.footer-top { min-height: 140px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 48px; border-bottom: 1px solid rgba(255,255,255,.07); }
.footer-brand .brand-copy strong { color: var(--white); }
.footer-brand .brand-copy small { color: #6f809a; }
.footer-top > p { max-width: 470px; margin: 0; font-size: 12px; line-height: 1.7; }
.footer-top nav { display: flex; gap: 20px; font-size: 11px; font-weight: 700; }
.footer-top nav a:hover { color: var(--white); }
.footer-bottom { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 30px; font-size: 10px; line-height: 1.6; }
.footer-bottom p { margin: 0; }
.footer-bottom p:last-child { max-width: 650px; text-align: right; }
.footer-bottom strong { color: #f2c46f; }

a:focus-visible, summary:focus-visible { outline: 3px solid rgba(37,99,235,.36); outline-offset: 3px; }

@media (max-width: 1050px) {
    .desktop-nav, .header-action { display: none; }
    .mobile-nav { display: block; }
    .hero-layout { grid-template-columns: 1fr 420px; gap: 44px; }
    .hero h1 { font-size: 50px; }
    .status-grid { grid-template-columns: repeat(2, 1fr); }
    .status-item:nth-child(3) { border-left: 0; border-top: 1px solid var(--slate-200); }
    .status-item:nth-child(4) { border-top: 1px solid var(--slate-200); }
    .content-layout { grid-template-columns: minmax(0, 1fr) 260px; gap: 24px; }
    .article-card { padding-inline: 36px; }
}

@media (max-width: 820px) {
    .hero { min-height: auto; }
    .hero-layout { grid-template-columns: 1fr; padding-block: 70px; }
    .hero-content { max-width: 680px; }
    .hero-panel { width: min(100%, 520px); min-height: 445px; }
    .content-layout { grid-template-columns: 1fr; }
    .sidebar { position: static; grid-template-columns: 1fr 1fr; grid-row: 1; }
    .toc-card { display: none; }
    .security-card { grid-column: 1 / -1; }
    .closing-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; gap: 20px; padding-block: 38px; }
    .footer-top nav { flex-wrap: wrap; }
    .footer-bottom { align-items: flex-start; flex-direction: column; padding-block: 24px; }
    .footer-bottom p:last-child { text-align: left; }
}

@media (max-width: 600px) {
    .container { width: min(calc(100% - 26px), var(--container)); }
    .notice-inner { padding-block: 7px; text-align: left; }
    .header-inner { min-height: 68px; }
    .brand-mark { width: 38px; height: 38px; border-radius: 11px; }
    .hero-layout { padding-block: 58px; gap: 42px; }
    .hero h1 { margin-top: 17px; font-size: 40px; line-height: 1.08; }
    .hero-content > p { font-size: 16px; }
    .button { width: 100%; }
    .hero-panel { min-height: 405px; padding: 20px; border-radius: 22px; }
    .domain-card strong { font-size: 11px; }
    .signal-visual { width: 190px; height: 190px; }
    .panel-metrics small { font-size: 7px; }
    .status-grid { grid-template-columns: 1fr; }
    .status-item { min-height: 90px; padding-inline: 8px; }
    .status-item + .status-item, .status-item:nth-child(3) { border-left: 0; border-top: 1px solid var(--slate-200); }
    .content-layout { padding-block: 42px 60px; }
    .article-card { padding: 30px 20px 38px; border-radius: 22px; }
    .lead { font-size: 16px; }
    .article-section { grid-template-columns: 1fr; gap: 11px; padding-top: 42px; }
    .article-section-featured { margin-inline: -8px; padding: 27px 20px; }
    .article-section h2, .faq-section h2 { font-size: 27px; }
    .article-section p { font-size: 14px; line-height: 1.85; }
    .mobile-card { grid-template-columns: 1fr; text-align: center; }
    .mobile-card .mini-eyebrow { justify-content: center; }
    .closing-checks { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}