:root {
  --canvas: #F6F2EE; --surface: #FFFFFF; --ink: #1A1410; --ink-soft: #6B5F55; --accent: #E0400C; --line: rgba(17, 19, 23, .1);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --canvas: #08090B; --surface: #111317; --ink: #F3F1ED; --ink-soft: #A7A39C; --accent: #FF7A3D; --line: rgba(255, 255, 255, .1); }
}
:root[data-theme="dark"] { --canvas: #08090B; --surface: #111317; --ink: #F3F1ED; --ink-soft: #A7A39C; --accent: #FF7A3D; --line: rgba(255, 255, 255, .1); }
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--canvas); color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.brand { max-width: 760px; margin: 0 auto; padding: 24px 16px 0; }
/* The logo matches the home page and the app: Archivo, extra bold and wide, "Skill" in brand orange. */
.brand a { display: inline-flex; align-items: center; gap: 10px; font-family: Archivo, system-ui, sans-serif; font-weight: 900; font-stretch: 118%; font-size: 22px; letter-spacing: -.01em; color: var(--ink); text-decoration: none; }
.brand b { font-weight: inherit; color: #FF5B24; }
.brand .mark { display: block; width: 34px; height: 34px; border-radius: 9px; }
main { max-width: 760px; margin: 16px auto 48px; padding: clamp(24px, 4vw, 44px) clamp(18px, 4vw, 44px); background: var(--surface); border-radius: 24px; box-shadow: 0 1px 0 var(--line), 0 20px 50px -30px rgba(0, 0, 0, .35); }
h1, h2 { font-weight: 800; line-height: 1.2; letter-spacing: -.01em; }
h1 { font-size: clamp(28px, 4vw, 36px); margin: 0 0 6px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
.meta { color: var(--ink-soft); font-size: 15px; margin-top: 0; }
a { color: var(--accent); }
ul { padding-left: 20px; }
li + li { margin-top: 8px; }
.links { margin-top: 36px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 15px; }

/* English / Español link at the top of each page */
.lang-switch { margin: 0 0 12px; text-align: right; font-size: 14px; font-weight: 700; }