:root {
  --paper: #f5f7f4; --surface: #ffffff; --surface-2: #eef1ec;
  --ink: #16211d; --ink-soft: #40514a; --muted: #6f7d75; --line: #dfe4dd;
  --accent: #0e7c6b; --accent-deep: #0a5a4d; --accent-tint: #e0efeb; --gold: #b0803a;
  --shadow: 24px 48px -32px rgba(16, 33, 29, .38); --maxw: 720px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #0e1512; --surface: #16211d; --surface-2: #1b2823; --ink: #e9eeeb; --ink-soft: #b9c4be; --muted: #869089; --line: #263530; --accent: #3fb9a5; --accent-deep: #55c9b5; --accent-tint: #16302a; --gold: #d3a45f; --shadow: 24px 48px -32px rgba(0,0,0,.6); }
}
:root[data-theme="light"] { --paper: #f5f7f4; --surface: #ffffff; --surface-2: #eef1ec; --ink: #16211d; --ink-soft: #40514a; --muted: #6f7d75; --line: #dfe4dd; --accent: #0e7c6b; --accent-deep: #0a5a4d; --accent-tint: #e0efeb; --gold: #b0803a; --shadow: 24px 48px -32px rgba(16,33,29,.38); }
:root[data-theme="dark"] { --paper: #0e1512; --surface: #16211d; --surface-2: #1b2823; --ink: #e9eeeb; --ink-soft: #b9c4be; --muted: #869089; --line: #263530; --accent: #3fb9a5; --accent-deep: #55c9b5; --accent-tint: #16302a; --gold: #d3a45f; --shadow: 24px 48px -32px rgba(0,0,0,.6); }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 18px; line-height: 1.72; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img { max-width: 100%; display: block; }
a { color: var(--accent); }

.topnav { position: sticky; top: 0; z-index: 20; backdrop-filter: saturate(1.2) blur(10px); -webkit-backdrop-filter: saturate(1.2) blur(10px); background: color-mix(in srgb, var(--paper) 82%, transparent); border-bottom: 1px solid var(--line); }
.topnav .row { max-width: 1080px; margin: 0 auto; padding: 0 28px; height: 62px; display: flex; align-items: center; justify-content: space-between; }
.topnav a.brand { font-family: var(--mono); font-size: .76rem; letter-spacing: .2em; text-transform: uppercase; text-decoration: none; color: var(--ink); font-weight: 500; }
.topnav a.brand b { color: var(--accent); }
.topnav a.back { font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; text-decoration: none; color: var(--ink-soft); }
.topnav a.back:hover { color: var(--accent); }

/* magazine header */
.post-header { max-width: 1080px; margin: 0 auto; padding: 52px 28px 40px; display: grid; grid-template-columns: 360px 1fr; gap: 48px; align-items: center; }
.post-header .cover img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: 16px; border: 1px solid var(--line); box-shadow: var(--shadow); }
.post-header .cat { font-family: var(--mono); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.post-header .cat::before { content: ""; width: 24px; height: 1px; background: var(--accent); opacity: .6; }
.post-header h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(2rem, 4.4vw, 3.1rem); line-height: 1.08; margin: 0; text-wrap: balance; }
.post-header .lede { font-family: var(--serif); font-size: 1.2rem; line-height: 1.5; color: var(--ink-soft); margin: 20px 0 0; }
.post-header .meta { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-top: 24px; }
.post-header .meta .dot { width: 4px; height: 4px; border-radius: 999px; background: var(--muted); }
@media (max-width: 780px) {
  .post-header { grid-template-columns: 1fr; gap: 28px; padding-top: 34px; }
  .post-header .cover { max-width: 300px; }
}

.divider { max-width: var(--maxw); margin: 0 auto; border-top: 1px solid var(--line); }

article { max-width: var(--maxw); margin: 0 auto; padding: 40px 28px 20px; }
.lede-body { font-family: var(--serif); font-size: 1.3rem; line-height: 1.5; color: var(--ink); margin: 0 0 26px; }
article h2 { font-family: var(--serif); font-weight: 600; font-size: 1.5rem; line-height: 1.2; margin: 40px 0 14px; text-wrap: balance; }
article p { color: var(--ink-soft); margin: 0 0 20px; }
article strong { color: var(--ink); }
article ul { color: var(--ink-soft); margin: 0 0 20px; padding-left: 4px; list-style: none; }
article li { margin: 10px 0; padding-left: 26px; position: relative; }
article li::before { content: ""; position: absolute; left: 0; top: .62em; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); transform: rotate(45deg); }
.callout { background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 12px; padding: 22px 24px; margin: 30px 0; box-shadow: var(--shadow); }
.callout p { margin: 0; color: var(--ink); font-size: 1.02rem; }
.callout .k { font-family: var(--mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 8px; }
.cta { background: var(--accent-tint); border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line)); border-radius: 14px; padding: 26px; margin: 36px 0 10px; }
.cta h3 { font-family: var(--serif); font-size: 1.3rem; margin: 0 0 8px; color: var(--ink); }
.cta p { margin: 0 0 16px; color: var(--ink-soft); font-size: .98rem; }
.cta a.btn { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; background: var(--accent); color: #fff; padding: 12px 22px; border-radius: 999px; font-size: .9rem; font-weight: 500; }
:root[data-theme="dark"] .cta a.btn { color: #06110e; }
@media (prefers-color-scheme: dark) { .cta a.btn { color: #06110e; } }

.article-foot { max-width: var(--maxw); margin: 0 auto; padding: 20px 28px 70px; }
.article-foot .src { font-size: .88rem; color: var(--muted); margin: 0 0 26px; line-height: 1.5; }
.backlink { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: .76rem; letter-spacing: .06em; text-transform: uppercase; text-decoration: none; color: var(--accent); padding: 12px 20px; border: 1px solid var(--line); border-radius: 999px; }
.backlink:hover { border-color: var(--accent); }

footer { border-top: 1px solid var(--line); padding: 30px 0; }
footer .row { max-width: 1080px; margin: 0 auto; padding: 0 28px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
footer .brand { font-family: var(--mono); font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; }
footer .brand b { color: var(--accent); }
footer small { font-family: var(--mono); font-size: .68rem; color: var(--muted); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
@media (max-width: 620px) { body { font-size: 17px; } }