:root {
    --bg: #05070b;
    --bg-2: #0a0e15;
    --line: rgba(255, 255, 255, .09);
    --line-2: rgba(255, 255, 255, .17);
    --text: #e9eef4;
    --muted: #8f9bab;
    --solar: #ffc247;
    --display: "Onest", system-ui, sans-serif;
    --body: "Inter", system-ui, sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, monospace;
    --gutter: clamp(16px, 4vw, 40px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--body); font-size: 16px; line-height: 1.62; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
h1, h2, p, ol { margin: 0; }
::selection { background: var(--solar); color: #000; }
:focus-visible { outline: 2px solid var(--solar); outline-offset: 3px; }

.wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 var(--gutter); }
.mono { font-family: var(--mono); font-size: 12px; letter-spacing: .07em; text-transform: uppercase; color: var(--muted); }
.solar { color: var(--solar); }

.nav { position: sticky; top: 0; z-index: 10; background: rgba(5, 7, 11, .84); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.nav-in { display: flex; align-items: center; gap: 28px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 600; letter-spacing: .22em; font-size: 15px; }
.logo svg { width: 22px; height: 22px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a { font-size: 14px; color: #b9c3d0; transition: color .2s; }
.nav-links a:hover { color: #fff; }
.btn { display: inline-flex; align-items: center; font: 500 13px var(--body); padding: 9px 16px; border-radius: 2px; background: var(--solar); color: #0a0700; transition: background .2s; }
.btn:hover { background: #ffd47a; }

.head { position: relative; isolation: isolate; padding: clamp(64px, 11vw, 150px) 0 clamp(36px, 5vw, 64px); border-bottom: 1px solid var(--line); overflow: hidden; }
.head img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.head::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(5,7,11,.72) 0%, rgba(5,7,11,.8) 55%, var(--bg) 100%); }
.col { max-width: 760px; margin: 0 auto; }
h1 { font-family: var(--display); font-weight: 500; font-size: clamp(32px, 5.4vw, 62px); line-height: 1.06; letter-spacing: -.03em; margin-top: 20px; text-wrap: balance; }

article { padding: clamp(36px, 6vw, 72px) 0 clamp(56px, 8vw, 110px); }
article p { font-size: clamp(17px, 1.35vw, 19px); line-height: 1.75; color: #d5dce6; margin-bottom: 1.5em; }
article p:first-of-type { font-size: clamp(19px, 1.7vw, 23px); line-height: 1.6; color: var(--text); }

.refs { margin-top: clamp(40px, 6vw, 72px); padding-top: 28px; border-top: 1px solid var(--line-2); }
.refs ol { margin-top: 18px; padding-left: 1.3em; }
.refs li { font-size: 14.5px; color: var(--muted); margin-bottom: 10px; padding-left: 4px; }
.refs li::marker { font-family: var(--mono); font-size: 12px; color: var(--solar); }

.back { display: inline-block; margin-top: clamp(36px, 5vw, 56px); font: 500 12px var(--mono); letter-spacing: .07em; text-transform: uppercase; color: var(--text); border-bottom: 1px solid var(--line-2); padding-bottom: 4px; transition: color .2s, border-color .2s; }
.back:hover { color: var(--solar); border-color: var(--solar); }

footer { border-top: 1px solid var(--line); padding: 28px 0 36px; }
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; }
.foot a { color: var(--text); border-bottom: 1px solid var(--line-2); }

@media (max-width: 900px) {
    .nav-links { display: none; }
    .nav .btn { margin-left: auto; }
}