:root{
  --bg: #0f1723;
  --card: rgba(255,255,255,0.06);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.70);
  --line: rgba(255,255,255,0.12);
  --accent: #b49b5f;
  --max: 1120px;
  --radius: 18px;
  --shadow: 0 18px 50px rgba(0,0,0,0.35);
  --shadow2: 0 10px 25px rgba(0,0,0,0.25);
  --focus: 0 0 0 3px rgba(180,155,95,0.35);
}

@media (prefers-color-scheme: light){
  :root{
    --bg: #f7f8fb;
    --card: rgba(15,23,35,0.06);
    --text: rgba(15,23,35,0.92);
    --muted: rgba(15,23,35,0.70);
    --line: rgba(15,23,35,0.12);
    --shadow: 0 18px 50px rgba(15,23,35,0.12);
    --shadow2: 0 10px 25px rgba(15,23,35,0.10);
  }
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a{color:inherit}
a:hover{color:var(--accent)}
.container{max-width:var(--max); margin:0 auto; padding:0 18px}
.sr-only{position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0}
.muted{color:var(--muted)}

.site-header{
  position:sticky; top:0;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  border-bottom: 1px solid var(--line);
  z-index: 20;
}
.header__inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 12px 0;
  gap: 12px;
}
.brand{display:flex; align-items:center; gap:10px; text-decoration:none}
.brand__mark{
  width:36px; height:36px; border-radius: 12px;
  display:grid; place-items:center;
  border:1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  color: var(--accent);
  font-weight: 700;
}
.brand__text{font-weight: 700; letter-spacing: 0.2px}

.nav{display:flex; align-items:center; gap:14px}
.nav__link{
  text-decoration:none;
  padding: 10px 10px;
  border-radius: 12px;
  color: var(--muted);
  border: 1px solid transparent;
}
.nav__link[aria-current="page"]{
  color: var(--text);
  border-color: var(--line);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
}
.nav__toggle{
  display:none;
  border:1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  color: var(--text);
  border-radius: 14px;
  padding: 10px 12px;
}
.nav__bars{
  display:block; width:18px; height:2px; background: var(--muted);
  position:relative; border-radius:2px;
}
.nav__bars::before,.nav__bars::after{
  content:""; position:absolute; left:0; right:0;
  height:2px; background: var(--muted); border-radius:2px;
}
.nav__bars::before{top:-6px}
.nav__bars::after{top:6px}

.nav__dropdown{position:relative}
.nav__link--btn{
  background: none; cursor:pointer;
}
.nav__menu{
  position:absolute; right:0; top: 44px;
  min-width: 330px;
  display:none;
  border:1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-radius: 16px;
  box-shadow: var(--shadow2);
  padding: 10px;
}
.nav__dropdown.open .nav__menu{display:block}
.nav__item{
  display:block;
  padding: 10px 12px;
  border-radius: 12px;
  text-decoration:none;
  color: var(--muted);
}
.nav__item:hover{
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  color: var(--text);
}

.hero{
  padding: 48px 0 24px;
}
.hero__grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 22px;
  align-items:center;
}
.kicker{
  color: var(--accent);
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: 12px;
}
h1{font-size: clamp(28px, 4vw, 44px); line-height:1.1; margin: 10px 0 14px}
h2{font-size: clamp(20px, 2.6vw, 28px); margin: 0 0 12px}
h3{font-size: 18px; margin: 0 0 8px}
.card{
  border:1px solid var(--line);
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow2);
}
.hero__card{padding: 18px}
.hero__portrait{
  overflow:hidden;
  padding: 0;
}
.hero__portrait img{
  display:block;
  width:100%;
  height:auto;
}
.section{padding: 26px 0}
.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.tile{
  padding: 16px;
  transition: transform .15s ease, border-color .15s ease;
}
.tile:hover{transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 35%, var(--line))}
.tile a{display:flex; justify-content:space-between; gap:10px; text-decoration:none}
.tile .muted{margin:0}

.list{
  display:grid;
  gap: 10px;
}
.item{
  padding: 14px 16px;
}
.item a{text-decoration:none}
.pills{display:flex; flex-wrap:wrap; gap:8px; margin-top: 10px}
.pill{
  border:1px solid var(--line);
  border-radius: 999px;
  padding: 7px 10px;
  color: var(--muted);
  font-size: 13px;
  text-decoration:none;
}

.page{
  padding: 30px 0 10px;
}
.prose{
  max-width: 760px;
}
.prose p{margin: 0 0 14px}
.prose ul{margin: 0 0 14px; padding-left: 18px}
.hr{
  height:1px; background:var(--line);
  margin: 22px 0;
  border:0;
}

.site-footer{
  border-top: 1px solid var(--line);
  margin-top: 36px;
  padding: 26px 0;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
}
.footer__cols{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 18px;
}
.footer__title{font-weight:700; margin-bottom: 10px}
.footer__list{list-style:none; padding:0; margin:0; display:grid; gap:8px}
.footer__bottom{margin-top: 16px}

:focus-visible{outline: none; box-shadow: var(--focus); border-radius: 12px}

@media (max-width: 900px){
  .hero__grid{grid-template-columns: 1fr; }
  .grid{grid-template-columns: 1fr; }
  .footer__cols{grid-template-columns: 1fr; }
  .nav__toggle{display:inline-flex; align-items:center; justify-content:center;}
  .nav{
    position:absolute;
    right: 18px;
    top: 58px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap: 6px;
    padding: 10px;
    border:1px solid var(--line);
    border-radius: 16px;
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    box-shadow: var(--shadow2);
    min-width: 260px;
  }
  .nav.open{display:flex;}
  .nav__menu{position:static; min-width: unset;}
}