:root {
  color-scheme: dark;
  --ink: #f5f7fb;
  --muted: #a9b2c3;
  --line: rgba(255,255,255,.11);
  --panel: rgba(255,255,255,.055);
  --blue: #65a7ff;
  --blue-2: #2368e8;
  --gold: #f0b76a;
  --navy: #07101d;
  --navy-2: #0b1728;
  --success: #69d5a2;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 86% -10%, rgba(45,106,215,.27), transparent 31rem),
    radial-gradient(circle at -10% 40%, rgba(25,86,155,.16), transparent 28rem),
    var(--navy);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: .45;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255,255,255,.78) 0 1px, transparent 1.5px),
    radial-gradient(circle at 72% 12%, rgba(155,199,255,.72) 0 1px, transparent 1.6px),
    radial-gradient(circle at 34% 64%, rgba(255,255,255,.5) 0 1px, transparent 1.5px),
    radial-gradient(circle at 88% 58%, rgba(255,255,255,.58) 0 1px, transparent 1.4px);
  background-size: 260px 260px, 330px 330px, 410px 410px, 520px 520px;
}
a { color: inherit; }
.wrap { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  background: rgba(7,16,29,.76); border-bottom: 1px solid var(--line);
}
.nav-inner { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 750; letter-spacing: -.02em; }
.brand-mark { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: linear-gradient(145deg, #2e7cff, #17479e); box-shadow: 0 8px 25px rgba(22,91,210,.35); }
.brand-mark svg { width: 22px; height: 22px; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600; }
.nav-links a:hover, .nav-links a:focus-visible { color: #fff; }
.nav-links .support-link { color: #fff; border: 1px solid var(--line); padding: 9px 14px; border-radius: 999px; }

.hero { min-height: 720px; padding: 105px 0 80px; text-align: center; overflow: hidden; position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.hero::before { content: ""; position: absolute; width: 720px; height: 720px; border: 1px solid rgba(123,177,255,.12); border-radius: 50%; top: 31px; left: 50%; transform: translateX(-50%); box-shadow: 0 0 120px rgba(33,102,210,.11), inset 0 0 90px rgba(60,119,218,.07); }
.hero::after { content: ""; position: absolute; width: 1080px; height: 230px; left: 50%; bottom: -150px; transform: translateX(-50%); border-radius: 50%; border-top: 1px solid rgba(131,183,255,.38); background: radial-gradient(ellipse at center top, rgba(33,98,197,.22), transparent 62%); filter: drop-shadow(0 -7px 22px rgba(61,127,230,.18)); }
.hero > * { position: relative; z-index: 2; }
.flight-mark { width: 188px; height: 74px; margin: 6px auto 17px; opacity: .92; }
.flight-mark svg { width: 100%; height: 100%; overflow: visible; }
.flight-path { fill: none; stroke: rgba(125,184,255,.48); stroke-width: 1.2; stroke-dasharray: 3 6; }
.flight-plane { fill: #dbeaff; filter: drop-shadow(0 0 8px rgba(101,167,255,.9)); }
.eyebrow { color: #9cc3ff; font-size: 13px; letter-spacing: .15em; text-transform: uppercase; font-weight: 750; }
h1 { margin: 19px auto 22px; max-width: 880px; font-size: clamp(48px, 8vw, 88px); line-height: .97; letter-spacing: -.065em; }
.hero-copy { color: var(--muted); font-size: clamp(18px, 2.3vw, 23px); line-height: 1.55; max-width: 720px; margin: 0 auto; }
.hero-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 19px; border-radius: 14px; text-decoration: none; font-weight: 700; font-size: 15px; border: 1px solid var(--line); }
.button.primary { color: #fff; background: linear-gradient(135deg, #2977fa, #1950b1); box-shadow: 0 12px 35px rgba(28,96,218,.3); }
.button.secondary { background: rgba(255,255,255,.045); }
.button:hover { transform: translateY(-1px); }
.signal { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 13px; margin-top: 22px; }
.signal-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 5px rgba(105,213,162,.1); }
.coordinates { margin-top: 17px; color: #687b96; font: 11px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .18em; text-transform: uppercase; }

.apps { padding: 20px 0 100px; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 28px; margin-bottom: 32px; }
.section-head h2, .info-section h2 { margin: 0; font-size: clamp(32px, 4vw, 50px); letter-spacing: -.045em; }
.section-head p { color: var(--muted); max-width: 450px; line-height: 1.6; margin: 0; }
.app-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.app-card { min-height: 650px; position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 30px; padding: 34px; background: linear-gradient(150deg, rgba(255,255,255,.075), rgba(255,255,255,.025)); box-shadow: 0 22px 80px rgba(0,0,0,.2); }
.app-card:hover { border-color: rgba(132,182,255,.28); box-shadow: 0 30px 90px rgba(0,0,0,.3), 0 0 45px rgba(38,102,202,.08); }
.app-card::after { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; filter: blur(70px); opacity: .15; right: -180px; top: -160px; background: var(--blue); }
.app-card.commercial::after { background: var(--gold); }
.app-card.pcaptl-card { grid-column: 1 / -1; min-height: 340px; padding-right: min(38%, 420px); background: radial-gradient(circle at 88% 45%, rgba(51, 170, 205, .17), transparent 32%), linear-gradient(150deg, rgba(255,255,255,.075), rgba(255,255,255,.025)); }
.app-card.pcaptl-card::after { background: #28a5ca; }
.app-icon.pcaptl-icon { display: grid; place-items: center; color: #e1faff; font-weight: 800; font-size: 18px; background: linear-gradient(145deg, #114668, #0d7285); }
.pcaptl-card .stats { max-width: 510px; }
.card-top { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 18px; }
.app-icon { flex: 0 0 auto; width: 78px; height: 78px; border-radius: 19px; overflow: hidden; background: #0e1b28; box-shadow: 0 14px 35px rgba(0,0,0,.38); }
.app-icon img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pill { height: fit-content; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 7px 11px; font-size: 12px; font-weight: 650; }
.app-card h3 { position: relative; z-index: 1; font-size: 34px; letter-spacing: -.04em; margin: 28px 0 11px; }
.app-card > p { position: relative; z-index: 1; color: var(--muted); line-height: 1.6; margin: 0; max-width: 470px; }
.stats { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 24px 0; }
.stat { border: 1px solid var(--line); background: rgba(4,11,20,.33); border-radius: 16px; padding: 16px; }
.stat strong { display: block; font-size: 24px; letter-spacing: -.03em; }
.stat span { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; }
.screen { position: relative; z-index: 1; border: 1px solid rgba(255,255,255,.13); border-radius: 19px 19px 0 0; padding: 13px 13px 0; margin-top: 25px; background: #07111f; box-shadow: 0 24px 50px rgba(0,0,0,.32); transform: translateY(18px); }
.window-bar { display: flex; gap: 6px; padding: 2px 0 11px; }
.window-bar i { display: block; width: 7px; height: 7px; border-radius: 50%; background: #334054; }
.mini-ui { display: grid; grid-template-columns: 110px 1fr; min-height: 190px; border-radius: 10px 10px 0 0; overflow: hidden; border: 1px solid rgba(255,255,255,.06); }
.mini-side { background: #0b1727; padding: 14px 10px; }
.mini-side b { display: block; height: 7px; width: 65px; border-radius: 8px; background: #4b8ff5; margin-bottom: 20px; }
.mini-side span { display: block; height: 5px; width: 72px; border-radius: 8px; background: #334157; margin: 11px 0; }
.mini-main { padding: 22px; background: linear-gradient(150deg, #0c1a2d, #091322); }
.mini-label { color: var(--blue); font-size: 9px; font-weight: 750; letter-spacing: .09em; text-transform: uppercase; }
.commercial .mini-label { color: var(--gold); }
.mini-main h4 { margin: 8px 0 18px; font-size: 15px; }
.option { display: flex; align-items: center; gap: 9px; border: 1px solid #233149; border-radius: 8px; padding: 9px; margin: 7px 0; color: #aab6c9; font-size: 9px; }
.option::before { content: ""; width: 9px; height: 9px; border: 1px solid #52617a; border-radius: 50%; }

.features { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.02); padding: 88px 0; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.feature { padding-right: 16px; }
.feature-number { color: #79adff; font-weight: 800; font-size: 13px; letter-spacing: .12em; }
.feature h3 { margin: 13px 0 9px; font-size: 18px; }
.feature p { color: var(--muted); margin: 0; line-height: 1.55; font-size: 14px; }

.learning { padding: 100px 0; }
.learning-intro { max-width: 720px; margin-bottom: 42px; }
.learning-intro p { color: var(--muted); font-size: 18px; line-height: 1.65; }
.study-cycle { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; counter-reset: cycle; }
.cycle-step { position: relative; min-height: 205px; padding: 23px 20px; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(150deg, rgba(255,255,255,.06), rgba(255,255,255,.018)); }
.cycle-step::before { counter-increment: cycle; content: "0" counter(cycle); display: block; color: #7ab0ff; font: 700 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em; margin-bottom: 44px; }
.cycle-step:not(:last-child)::after { content: ""; position: absolute; z-index: 2; right: -10px; top: 48px; width: 18px; height: 1px; background: #446185; }
.cycle-step h3 { margin: 0 0 9px; font-size: 17px; }
.cycle-step p { color: var(--muted); margin: 0; font-size: 14px; line-height: 1.55; }
.knowledge { padding: 95px 0; border-top: 1px solid var(--line); background: radial-gradient(circle at 50% 15%, rgba(36,91,176,.12), transparent 42rem); }
.knowledge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 36px; }
.knowledge-card { padding: 24px; min-height: 170px; border-radius: 20px; border: 1px solid var(--line); background: rgba(255,255,255,.035); }
.knowledge-card span { color: #6fa8ff; font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em; }
.knowledge-card h3 { margin: 18px 0 8px; font-size: 18px; }
.knowledge-card p { color: var(--muted); font-size: 14px; line-height: 1.55; margin: 0; }
.principles { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 24px; }
.principle { padding: 28px; border-left: 1px solid #4c83d2; background: linear-gradient(90deg, rgba(37,91,173,.1), transparent); }
.principle h3 { margin: 0 0 9px; }
.principle p { color: var(--muted); line-height: 1.6; margin: 0; }
.faq { margin-top: 28px; }
.faq details { border-top: 1px solid var(--line); padding: 20px 2px; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-size: 17px; font-weight: 700; list-style: none; padding-right: 32px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 2px; color: #81b3ff; font-size: 21px; font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); line-height: 1.65; margin: 13px 0 0; max-width: 850px; }
.topic-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 25px; padding: 0; list-style: none; }
.topic-list li { position: relative; padding: 11px 0 11px 24px; border-bottom: 1px solid rgba(255,255,255,.07); }
.topic-list li::before { content: "✦"; position: absolute; left: 0; color: #77adff; }
.academy-strip { padding: 100px 0; border-top: 1px solid var(--line); }
.academy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 35px; }
.academy-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 30px; }
.academy-metrics div { padding: 17px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.035); }
.academy-metrics strong { display: block; color: #dceaff; font-size: 24px; letter-spacing: -.03em; }
.academy-metrics span { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; }
.learning-paths { margin: 0 0 68px; padding: 42px 0 0; border-top: 1px solid var(--line); }
.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.path-card { padding: 27px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(150deg, rgba(31,87,174,.13), rgba(255,255,255,.025)); }
.path-card > span { color: #7eb2ff; font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .11em; }
.path-card h3 { margin: 17px 0 14px; font-size: 22px; }
.path-card ol { margin: 0; padding-left: 21px; color: #d4dce8; line-height: 1.8; font-size: 14px; }
.path-card p { color: var(--muted); font-size: 14px; line-height: 1.6; margin: 18px 0 0; }
.academy-proof { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; margin: 28px 0 6px; }
.academy-proof div { padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.025); }
.academy-proof strong, .academy-proof span { display: block; }
.academy-proof strong { color: #dceaff; margin-bottom: 8px; }
.academy-proof span { color: var(--muted); font-size: 13px; line-height: 1.55; }
.lesson-objectives { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 28px 0 38px; }
.lesson-objectives div { padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.03); }
.lesson-objectives strong { display: block; color: #8bbaff; font-size: 12px; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 8px; }
.lesson-objectives span { color: #c2ccda; font-size: 14px; line-height: 1.55; }
.knowledge-check { margin: 40px 0; padding: 28px; border: 1px solid rgba(240,183,106,.24); border-radius: 20px; background: linear-gradient(135deg, rgba(240,183,106,.1), rgba(255,255,255,.02)); }
.knowledge-check h2 { margin-top: 0; }
.knowledge-check ol { padding-left: 24px; }
.knowledge-check li { margin: 10px 0; }
.article-card { min-height: 420px; display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: rgba(255,255,255,.035); text-decoration: none; }
.article-card:hover { border-color: rgba(126,177,255,.35); transform: translateY(-2px); }
.article-card img { width: 100%; height: 210px; display: block; object-fit: cover; }
.article-card-body { padding: 23px; display: flex; flex-direction: column; flex: 1; }
.article-card .meta { color: #76aaff; font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .11em; text-transform: uppercase; }
.article-card h3 { margin: 16px 0 9px; font-size: 21px; }
.article-card p { color: var(--muted); line-height: 1.58; margin: 0; font-size: 14px; }
.article-card .read { color: #a8cbff; margin-top: auto; padding-top: 22px; font-size: 14px; font-weight: 700; }
.article-card .read::after { content: " →"; }
.app-header { display: grid; grid-template-columns: 112px 1fr; gap: 28px; align-items: center; }
.app-header-icon { width: 112px; height: 112px; border-radius: 25px; object-fit: cover; box-shadow: 0 20px 50px rgba(0,0,0,.38); }
.screenshot-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 26px 0 45px; }
.screenshot-gallery img { width: 100%; display: block; border-radius: 20px; border: 1px solid var(--line); box-shadow: 0 22px 50px rgba(0,0,0,.22); }
.article-hero { position: relative; overflow: hidden; min-height: 410px; border-radius: 28px; margin: 25px 0 45px; border: 1px solid var(--line); }
.article-hero img { width: 100%; height: 410px; display: block; object-fit: cover; }
.article-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 25%, rgba(3,9,17,.78)); }
.article-hero figcaption { position: absolute; z-index: 2; left: 28px; right: 28px; bottom: 25px; color: #d5deeb; font-size: 13px; line-height: 1.5; }
.article-body { max-width: 820px; }
.article-body h2 { margin: 48px 0 14px; font-size: 28px; letter-spacing: -.025em; }
.article-body h3 { margin: 31px 0 10px; font-size: 20px; }
.article-body p, .article-body li { color: #bcc6d5; font-size: 17px; line-height: 1.75; }
.article-body ul { padding-left: 23px; }
.formula { margin: 23px 0; padding: 22px; border: 1px solid rgba(117,171,255,.22); border-radius: 16px; background: rgba(32,83,161,.11); color: #dce9fb; font: 600 16px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; }
.academic-note { margin: 30px 0; padding: 23px; border-left: 2px solid #76aaff; background: linear-gradient(90deg, rgba(36,93,181,.13), transparent); color: #c9d3e1; line-height: 1.65; }

.info-section { padding: 95px 0; }
.info-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 80px; align-items: start; }
.info-section .lead { color: var(--muted); font-size: 18px; line-height: 1.65; }
.notice { border-left: 2px solid var(--blue); padding-left: 23px; color: #cbd3df; line-height: 1.7; }
.support-box { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: 30px; border: 1px solid var(--line); border-radius: 23px; background: var(--panel); margin-top: 25px; }
.support-box h3 { margin: 0 0 7px; }
.support-box p { color: var(--muted); margin: 0; line-height: 1.5; }
.text-link { display: inline-flex; margin-top: 17px; color: #9cc3ff; text-decoration: none; font-weight: 700; font-size: 14px; }
.text-link::after { content: "→"; margin-left: 8px; }

.page { padding: 72px 0 100px; }
.page-header { max-width: 770px; margin-bottom: 50px; }
.page h1 { margin: 15px 0 20px; font-size: clamp(44px, 7vw, 72px); }
.page-header p { color: var(--muted); font-size: 19px; line-height: 1.6; }
.content-card { border: 1px solid var(--line); border-radius: 24px; padding: 32px; background: var(--panel); margin: 16px 0; }
.content-card h2 { margin: 0 0 14px; font-size: 23px; }
.content-card p, .content-card li { color: #b9c2d1; line-height: 1.7; }
.content-card ul { padding-left: 21px; }
.contact-email { color: #9cc3ff; text-decoration: none; overflow-wrap: anywhere; }
.meta { color: #7f8a9b; font-size: 13px; }

footer { border-top: 1px solid var(--line); padding: 35px 0; color: var(--muted); font-size: 13px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-links a { color: var(--muted); text-decoration: none; }

@media (max-width: 850px) {
  .nav-links a:not(.support-link) { display: none; }
  .hero { padding-top: 75px; }
  .app-grid, .info-grid { grid-template-columns: 1fr; }
  .app-card.pcaptl-card { grid-column: auto; padding-right: 34px; min-height: 420px; }
  .section-head { align-items: start; flex-direction: column; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .study-cycle { grid-template-columns: 1fr 1fr; }
  .cycle-step:not(:last-child)::after { display: none; }
  .knowledge-grid { grid-template-columns: 1fr 1fr; }
  .academy-grid { grid-template-columns: 1fr 1fr; }
  .path-grid, .academy-proof { grid-template-columns: 1fr; }
  .app-card { min-height: 610px; }
}
@media (max-width: 560px) {
  .wrap { width: min(100% - 24px, 1160px); }
  .nav-inner { min-height: 62px; }
  .hero { padding: 64px 0 62px; }
  h1 { font-size: 47px; }
  .app-card { padding: 24px; border-radius: 24px; min-height: 590px; }
  .app-card h3 { font-size: 29px; }
  .feature-grid, .support-box { grid-template-columns: 1fr; }
  .study-cycle, .knowledge-grid, .principles, .topic-list, .academy-metrics, .lesson-objectives { grid-template-columns: 1fr; }
  .academy-grid, .screenshot-gallery { grid-template-columns: 1fr; }
  .app-header { grid-template-columns: 82px 1fr; gap: 18px; }
  .app-header-icon { width: 82px; height: 82px; border-radius: 20px; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  .mini-ui { grid-template-columns: 84px 1fr; }
  .mini-main { padding: 16px 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}