/* zekup.com — shared site styles (home + blog index).
   Theme-aware via tokens; matches the architecture post's identity. */
:root {
  --paper: #F2F4F7;
  --panel: #FFFFFF;
  --ink: #1A222C;
  --ink-soft: #4C5866;
  --line: #D8DEE6;
  --accent: #B8860B;
  --accent-ink: #8A6508;
  --chip-bg: #EAEDF1;
  --shadow: 0 1px 2px rgba(26,34,44,.06), 0 6px 20px rgba(26,34,44,.06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #11171E; --panel: #1A222C; --ink: #E4E8ED; --ink-soft: #97A2B0;
    --line: #2B3542; --accent: #D4A73C; --accent-ink: #D4A73C; --chip-bg: #232D39;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 20px rgba(0,0,0,.3);
  }
}
:root[data-theme="light"] {
  --paper: #F2F4F7; --panel: #FFFFFF; --ink: #1A222C; --ink-soft: #4C5866;
  --line: #D8DEE6; --accent: #B8860B; --accent-ink: #8A6508; --chip-bg: #EAEDF1;
  --shadow: 0 1px 2px rgba(26,34,44,.06), 0 6px 20px rgba(26,34,44,.06);
}
:root[data-theme="dark"] {
  --paper: #11171E; --panel: #1A222C; --ink: #E4E8ED; --ink-soft: #97A2B0;
  --line: #2B3542; --accent: #D4A73C; --accent-ink: #D4A73C; --chip-bg: #232D39;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 20px rgba(0,0,0,.3);
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent-ink); }
.mono, .eyebrow, .brand, .tag {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}
code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: .85em; background: var(--chip-bg); padding: .1em .35em; border-radius: 4px;
}
.wrap { max-width: 1000px; margin: 0 auto; padding: 0 1.25rem; }

/* top bar */
nav.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
nav.top .inner {
  max-width: 1000px; margin: 0 auto; padding: .7rem 1.25rem;
  display: flex; align-items: baseline; gap: 1.2rem;
}
nav.top .brand {
  font-size: .82rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--accent-ink); font-weight: 700; text-decoration: none;
}
nav.top .brand b { color: var(--ink); }
nav.top .spacer { flex: 1; }
nav.top a.link { color: var(--ink-soft); text-decoration: none; font-size: .88rem; }
nav.top a.link:hover { color: var(--ink); }

.eyebrow {
  font-size: .74rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-ink); margin: 0 0 .6rem;
}

/* hero */
header.hero { padding: 4rem 0 2rem; }
header.hero h1 {
  font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.08; letter-spacing: -.025em;
  margin: 0 0 1rem; text-wrap: balance;
}
header.hero h1 .amber { color: var(--accent); }
header.hero p.lede { max-width: 60ch; font-size: 1.12rem; color: var(--ink-soft); margin: 0 0 1.6rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: .7rem; }
.btn {
  display: inline-block; text-decoration: none; font-weight: 600; font-size: .92rem;
  padding: .6rem 1.1rem; border-radius: 8px; border: 1px solid transparent;
}
.btn.primary { background: var(--accent); color: #1A140A; }
.btn.primary:hover { filter: brightness(1.06); }
.btn.ghost { border-color: var(--line); color: var(--ink); background: var(--panel); }
.btn.ghost:hover { border-color: var(--accent); }

/* section + cards */
section.block { padding: 2.4rem 0; border-top: 1px solid var(--line); }
section.block h2 {
  font-size: clamp(1.3rem, 2.6vw, 1.7rem); letter-spacing: -.015em; margin: 0 0 1.2rem; text-wrap: balance;
}
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  box-shadow: var(--shadow); padding: 1.2rem 1.3rem;
}
.card h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.card p { margin: 0; color: var(--ink-soft); font-size: .92rem; }
.card .tag {
  display: inline-block; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent-ink); background: var(--chip-bg); border: 1px solid var(--line);
  border-radius: 999px; padding: .15rem .55rem; margin-bottom: .7rem;
}

/* blog index list */
ul.posts { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1rem; }
li.post a {
  display: block; text-decoration: none; color: inherit;
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  box-shadow: var(--shadow); padding: 1.3rem 1.4rem; transition: border-color .15s;
}
li.post a:hover { border-color: var(--accent); }
li.post .meta { font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); margin: 0 0 .4rem; }
li.post h3 { margin: 0 0 .4rem; font-size: 1.25rem; letter-spacing: -.01em; }
li.post p { margin: 0; color: var(--ink-soft); font-size: .95rem; }

footer.site {
  border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .84rem;
  padding: 1.6rem 0 3rem;
}
footer.site .inner { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; align-items: baseline; }
footer.site a { color: var(--ink-soft); }