:root {
  color-scheme: dark;
  --paper: #09080b;
  --ink: #f2f4fb;
  --muted: #bec7d7;
  --rule: #ffffff26;
  font-family: system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
}
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(ellipse 66rem 38rem at 50% 0%, #3b2058, transparent 80%),
    linear-gradient(155deg, #190e24, var(--paper) 65%);
}
.frame { width: min(1120px, calc(100% - 88px)); margin-inline: auto; }
.symbols { position: absolute; width: 0; height: 0; overflow: hidden; }
.masthead { display: flex; align-items: center; justify-content: center; min-height: 76px; border-bottom: 1px solid var(--rule); }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 1.15rem; font-weight: 700; letter-spacing: -.015em; }
.mark { width: 30px; height: 30px; display: grid; place-items: center; color: var(--paper); background: var(--ink); border-radius: 8px; }
.mark svg, .tile-arrow svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.intro { padding: clamp(42px, 6vw, 80px) 0 clamp(36px, 5vw, 65px); text-align: center; }
.intro h1 { margin: 0; font-size: clamp(2.5rem, 7vw, 4.75rem); line-height: 1.14; font-weight: 750; letter-spacing: -.03em; }
.intro h1 span { color: #a5afff; }
.intro p { max-width: 55ch; margin: 16px auto 0; color: var(--muted); font-size: clamp(1rem, 2vw, 1.2rem); line-height: 1.6; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; border-top: 1px solid var(--rule); padding-top: 13px; margin-bottom: 15px; }
.section-head h2 { margin: 0; font-size: .8rem; text-transform: uppercase; letter-spacing: .13em; }
.section-head span, .tile-number, .tile-domain { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.section-head span { color: var(--muted); font-size: .75rem; }
.tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 0; padding: 0; list-style: none; }
.tile {
  position: relative; isolation: isolate; display: flex; flex-direction: column; justify-content: space-between; gap: 52px;
  min-height: 260px; height: 100%; padding: 26px; overflow: hidden; border-radius: 21px; background: var(--gradient);
  color: #fff; text-decoration: none; transition: transform 180ms ease, box-shadow 180ms ease;
}
.tile-print { --gradient: linear-gradient(123deg, #141a20, #204539 64%, #245145); --tile-accent: #8ce7c9; }
.tile-home { --gradient: linear-gradient(123deg, #141a20, #1d3264 64%, #25396b); --tile-accent: #9eb8ff; }
.tile-laptop { --gradient: linear-gradient(123deg, #211913, #48301d 64%, #533a28); --tile-accent: #ffc27a; }
.tile-key { --gradient: linear-gradient(123deg, #152d29, #1e4036 64%, #245244); --tile-accent: #dcf58e; }
.tile-number, .tile-domain, .tile-arrow { color: var(--tile-accent); }
.tile-number { font-size: .78rem; letter-spacing: .07em; }
.tile-arrow { position: absolute; top: 21px; right: 22px; width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid #ffffff70; border-radius: 50%; transition: background-color 180ms ease, color 180ms ease; }
.tile-art { position: absolute; z-index: -1; right: -14px; bottom: -34px; width: min(47%, 246px); aspect-ratio: 1; height: auto; fill: none; stroke: var(--tile-accent); opacity: .24; stroke-width: 1.35; stroke-linecap: round; stroke-linejoin: round; pointer-events: none; }
.tile-copy { max-width: 34ch; }
.tile h3 { margin: 0; font-size: clamp(1.9rem, 4.3vw, 3.05rem); line-height: 1.02; letter-spacing: -.065em; }
.tile p { margin: 9px 0 15px; max-width: 30ch; line-height: 1.45; }
.tile-domain { display: block; font-size: .76rem; overflow-wrap: anywhere; }
.tile:focus-visible { outline: 3px solid var(--ink); outline-offset: 4px; }
.tile:focus-visible .tile-arrow { background: #fff; color: var(--paper); }
@media (hover: hover) {
  .tile:hover { transform: translateY(-3px); box-shadow: 0 12px 25px #0006; }
  .tile:hover .tile-arrow { background: #fff; color: var(--paper); }
}
.footer { margin-top: 42px; padding-block: 18px 26px; border-top: 1px solid var(--rule); color: var(--muted); font-size: .85rem; }
@media (max-width: 640px) {
  .frame { width: calc(100% - 36px); }
  .masthead { min-height: 64px; }
  .tiles { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .tile { min-height: 221px; gap: 33px; padding: 21px; }
  .tile-arrow { top: 16px; right: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  .tile, .tile-arrow { transition: none; }
  .tile:hover { transform: none; }
}