/* Smooth scroll for anchors */
html{scroll-behavior:smooth}

/* Base theme variables (Dark by default) */
:root{
  --bg:#071b1b;
  --card:#0f2f2f;
  --ink:#e6fffb;
  --muted:#bfecea;
  --accent:#1eb6a6;
  --hover: rgba(255,255,255,.10);
  --ink-contrast:#002a27;
  --shadow: 0 10px 40px rgba(0,0,0,.35);
}
/* Light theme overrides */
:root[data-theme="light"]{
  --bg:#f6fbfb;
  --card:#ffffff;
  --ink:#082222;
  --muted:#345e5c;
  --accent:#128d80;
  --hover: rgba(0,0,0,.06);
  --ink-contrast:#001413;
  --shadow: 0 8px 30px rgba(0,0,0,.1);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, Noto Sans, Apple Color Emoji, Segoe UI Emoji;
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
  transition: background-color .25s ease, color .25s ease;
}
a{color:var(--ink);text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:1.25rem}
header{
  position:sticky;top:0;z-index:20;
  background: color-mix(in oklab, var(--bg), #000 5%);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom:1px solid rgba(0,0,0,.12);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:.75rem}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:800}
.logo{width:42px;height:42px;display:block}
.nav a{padding:.5rem .75rem;border-radius:999px}
.nav a:hover{background:var(--hover)}
.nav a.active{background:var(--accent);color:var(--ink-contrast);font-weight:900}
.header-actions{display:flex;align-items:center;gap:.5rem}
.theme-toggle{border:1px solid var(--hover);background:transparent;color:var(--ink);border-radius:.8rem;padding:.45rem .6rem;cursor:pointer}
.theme-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.hamburger{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:.4rem;border-radius:.6rem}
.hamburger span{width:26px;height:3px;background:var(--ink)}
.hamburger:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Mobile full-screen overlay menu as vertical list */
.mobile-menu{
  position:fixed;inset:0;width:100vw;height:100vh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem;
  background:var(--bg);
  transform: translateX(-100%);
  transition: transform .3s ease-in-out, opacity .2s ease-in-out;
  opacity:.98;
}
.mobile-menu.active{transform: translateX(0)}
.mobile-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;align-items:center;gap:1rem}
.mobile-nav li{width:100%;display:flex;justify-content:center}
.mobile-nav a{font-size:1.5rem;padding:.5rem 1rem;border-radius:999px;display:inline-block}
.mobile-nav a:hover{background:var(--hover)}
.mobile-nav a.active{background:var(--accent);color:var(--ink-contrast);font-weight:900}
.close-btn{
  position:absolute;top:1rem;right:1rem;
  background:transparent;border:1px solid var(--hover);color:var(--ink);
  width:40px;height:40px;border-radius:.8rem;font-size:1.5rem;cursor:pointer
}
.close-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Hero split: text left, image right */
.hero{padding:2.5rem 0}
.hero-split{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap:1rem;
  align-items:center;
}
.hero-copy h1{font-size: clamp(2.2rem, 5vw, 3.25rem); line-height:1.1; margin:0;}
.hero-copy p{color:var(--muted);margin:.6rem 0 0}
.hero-media{display:flex;align-items:center;justify-content:center}
.hero-media img{width:100%;max-width:520px;height:auto;filter: drop-shadow(var(--shadow));}
.cta-row{display:flex;gap:.75rem;flex-wrap:wrap;margin:1rem 0}
.btn{display:inline-block;padding:.65rem 1rem;border-radius:1rem;background:var(--accent);color:var(--ink-contrast);font-weight:800}
.btn-outline{background:transparent;border:1px solid var(--accent);color:var(--ink)}

.lede{margin-top:1rem}
.lede h2{margin-bottom:.25rem}

.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem;margin-top:1rem}
.card{background:var(--card);padding:1rem;border-radius:1.25rem;box-shadow:0 6px 20px rgba(0,0,0,.18)}
.price{font-size:1.25rem;font-weight:900;margin:.5rem 0}
.muted{color:var(--muted);margin-top:-.25rem}
details{background:var(--card);padding:1rem;border-radius:1rem;margin:.6rem 0}
summary{cursor:pointer;font-weight:700}
pre{background:var(--card);padding:.75rem;border-radius:.75rem;overflow:auto}
footer{border-top:1px solid rgba(0,0,0,.12);margin-top:2rem;text-align:center;padding:1rem}

.no-scroll{overflow:hidden;height:100vh}

/* Responsive behaviour */
@media (max-width: 900px){
  .hero-split{grid-template-columns:1fr; text-align:center;}
  .hero-media{order:2}
  .hero-copy{order:1}
  .hero-copy .cta-row{justify-content:center}
}
@media (max-width: 768px){
  .desktop-nav{display:none}
  .hamburger{display:flex}
}


/* PGP key block styling */
.pgp-key-block{
  background: var(--card);
  color: var(--ink);
  border: 1px solid rgba(255,255,255,.12);
  padding: 1rem;
  border-radius: 12px;
  overflow: auto;
  max-height: 320px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: .85rem;
  white-space: pre-wrap;
  word-break: break-word;
}
.card details > summary{
  cursor: pointer;
}
.key-notes{
  font-size:.95rem;
  opacity:.9;
  margin-top:.5rem;
}