:root { color-scheme: dark; --bg:#09111e; --surface:#101e2d; --surface2:#15283a; --ink:#f1f6fb; --muted:#abc1d4; --border:#2a4153; --accent:#7adacb; --accent2:#8daaf6; }
:root[data-theme="light"] { color-scheme: light; --bg:#f5f8fb; --surface:#ffffff; --surface2:#eef4f8; --ink:#192c3b; --muted:#4c6275; --border:#d5e1ea; --accent:#007d75; --accent2:#315ab1; }
* {box-sizing:border-box} html {scroll-behavior:smooth} body {margin:0;background:var(--bg);color:var(--ink);font-family:'Segoe UI',Arial,sans-serif;line-height:1.65}
a {color:inherit;text-decoration:none} a:focus-visible,button:focus-visible {outline:3px solid var(--accent);outline-offset:4px}
.page-shell {max-width:1240px;margin:auto;padding:0 40px}.site-header {display:flex;gap:24px;align-items:center;justify-content:space-between;padding:24px 0;border-bottom:1px solid var(--border)}
.brand {font-family:'Segoe UI',Arial,sans-serif;font-weight:700;font-size:21px;letter-spacing:-.04em;white-space:nowrap}.brand-mark {color:var(--accent)}.brand-accent {color:var(--accent2)}
.nav {display:flex;align-items:center;gap:22px}.nav a {font-size:14px;color:var(--muted);transition:color .2s}.nav a:hover,.nav a[aria-current] {color:var(--accent)}
.theme-toggle,.menu-toggle {background:var(--surface);border:1px solid var(--border);border-radius:9px;color:var(--ink);cursor:pointer;padding:9px 13px;font:inherit;font-size:13px}.menu-toggle {display:none}
.skip-link {position:absolute;left:-999px;top:0;padding:10px;background:var(--accent);color:#071421}.skip-link:focus {left:12px;top:12px;z-index:5}
.hero {min-height:540px;display:grid;grid-template-columns:1.18fr .82fr;align-items:center;gap:34px;padding:66px 0 74px}.hero-copy {max-width:650px}.eyebrow {font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.12em;text-transform:uppercase}.status-dot {display:inline-block;width:8px;height:8px;background:var(--accent);border-radius:50%;margin-right:8px}
h1,h2,h3 {font-family:'Segoe UI',Arial,sans-serif;line-height:1.15;letter-spacing:-.035em}h1 {font-size:clamp(42px,5.6vw,76px);margin:18px 0 24px}h2 {font-size:clamp(25px,3vw,36px)}h3 {font-size:20px;margin:14px 0 9px}.lead {color:var(--muted);font-size:clamp(17px,1.75vw,20px);max-width:600px}.hero-art {width:100%;height:auto;filter:drop-shadow(0 22px 50px #43b8b525)}
.hero-actions {display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}.primary-btn,.secondary-btn {border-radius:10px;padding:13px 20px;font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:18px}.primary-btn {background:var(--accent);color:#081d24}.secondary-btn {border:1px solid var(--border);color:var(--ink)}.primary-btn:hover {filter:brightness(1.08)}.secondary-btn:hover {background:var(--surface2)}
.section-heading {display:flex;justify-content:space-between;align-items:baseline;gap:20px;padding:18px 0;border-bottom:1px solid var(--border);margin:18px 0}.section-heading span {font-size:12px;font-weight:700;letter-spacing:.15em;color:var(--accent)}.section-heading p {margin:0;color:var(--muted);font-size:13px}
.sections {display:grid;grid-template-columns:1fr 1fr;gap:34px;margin:34px 0 72px}.content-section {display:flex;align-items:flex-start;gap:18px}.section-number {font-size:13px;font-weight:700;color:var(--accent2);padding-top:9px}.content-section h2 {margin:0 0 15px}.content-section p,.feature-card p {color:var(--muted);margin:0}
.card-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:32px 0 90px}.feature-card {background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:27px;min-height:250px;transition:transform .2s,border-color .2s}.feature-card:hover {transform:translateY(-4px);border-color:var(--accent)}.card-icon {font-size:22px;color:var(--accent2)}
.page-cta {background:linear-gradient(125deg,var(--surface2),var(--surface));border:1px solid var(--border);border-radius:20px;padding:36px 42px;display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:75px}.page-cta h2 {margin:0 0 10px}.page-cta p {margin:0;color:var(--muted)}.page-cta .primary-btn {white-space:nowrap}
footer {border-top:1px solid var(--border);padding:24px 0 40px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:12px}.error-page {min-height:67vh;padding:130px 0;max-width:740px}.error-page h1 {font-size:clamp(42px,6vw,78px)}.error-page .primary-btn {margin-top:20px}
@media(max-width:900px) {.page-shell {padding:0 24px}.hero {grid-template-columns:1fr;padding:55px 0}.hero-art {max-width:520px;margin:auto}.card-grid {grid-template-columns:repeat(2,1fr)}.sections {grid-template-columns:1fr}.site-header {gap:13px}.nav {gap:12px}.nav a {font-size:12px}}
@media(max-width:650px) {.page-shell {padding:0 18px}.site-header {flex-wrap:wrap}.menu-toggle {display:block;margin-left:auto}.nav {display:none;order:4;flex-basis:100%;flex-direction:column;align-items:stretch;background:var(--surface);padding:16px;border:1px solid var(--border);border-radius:12px}.nav.is-open {display:flex}.nav a {font-size:15px;padding:5px}.theme-toggle {padding:9px}.hero {padding:44px 0}.card-grid {grid-template-columns:1fr;margin-bottom:46px}.page-cta {padding:25px;flex-direction:column;align-items:flex-start}.section-heading {flex-direction:column;gap:0}.sections {margin-bottom:46px}footer {flex-direction:column}h1 {font-size:44px}}