:root {
  color-scheme: light dark;
  --ink: #101828;
  --muted: #475467;
  --surface: #ffffff;
  --canvas: #f7f5f1;
  --line: #e4dfd7;
  --accent: #d95f3f;
  --accent-dark: #a83e25;
  --teal: #1f7376;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a { color: var(--accent-dark); text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid var(--teal); outline-offset: 4px; border-radius: 4px; }

.shell { width: min(760px, calc(100% - 32px)); margin: 0 auto; }

header { padding: 48px 0 24px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--ink);
  color: #fff;
}

main { padding: 16px 0 64px; }

.eyebrow { margin: 0 0 8px; color: var(--teal); font-size: 0.8rem; font-weight: 750; letter-spacing: 0.12em; text-transform: uppercase; }
h1 { margin: 0; max-width: 680px; font-size: clamp(2.5rem, 8vw, 4.75rem); line-height: 0.98; letter-spacing: -0.055em; }
.lede { max-width: 640px; margin: 24px 0 32px; color: var(--muted); font-size: 1.1rem; }

.card {
  margin: 24px 0;
  padding: clamp(20px, 5vw, 34px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 18px 50px rgba(16, 24, 40, 0.06);
}

h2 { margin: 0 0 12px; font-size: 1.35rem; letter-spacing: -0.02em; }
h3 { margin: 24px 0 8px; font-size: 1rem; }
p, ul { margin: 0 0 16px; }
li + li { margin-top: 8px; }
.meta { color: var(--muted); font-size: 0.9rem; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.button { display: inline-block; padding: 12px 16px; border-radius: 12px; background: var(--ink); color: #fff; font-weight: 700; text-decoration: none; }
.button.secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
footer { padding: 24px 0 48px; color: var(--muted); font-size: 0.9rem; }

@media (prefers-color-scheme: dark) {
  :root { --ink: #f5f2ec; --muted: #c0bbb3; --surface: #1d232e; --canvas: #10151d; --line: #343c48; --accent-dark: #ff9678; --teal: #73c7c7; }
  .mark, .button { background: #f5f2ec; color: #10151d; }
  .button.secondary { background: transparent; color: var(--ink); }
}

@media (max-width: 480px) { header { padding-top: 28px; } .shell { width: min(100% - 24px, 760px); } }