:root {
  --ink: #1a2025;
  --ink-soft: #4a555e;
  --bg: #fbfaf7;
  --bg-panel: #ffffff;
  --line: #e6e2da;
  --accent: #3a7d23;
  --accent-dark: #2b5e1a;
  --accent-soft: #eef4e8;
  --accent-line: #d9e7cd;
  --max: 760px;
  --max-wide: 1040px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 18px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1 0 auto; }

.wrap { max-width: var(--max-wide); margin: 0 auto; padding: 0 24px; }

a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header { border-top: 4px solid var(--accent); border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand:hover { text-decoration: none; }
.brand img { height: 32px; width: auto; display: block; }
.brand-name { font-weight: 700; font-size: 1.2rem; letter-spacing: -0.01em; color: var(--accent); }
.nav a { color: var(--ink-soft); margin-left: 22px; font-size: 0.98rem; }
.nav a:hover { color: var(--accent-dark); text-decoration: none; }

@media (max-width: 560px) {
  .header-inner { flex-direction: column; height: auto; padding: 14px 0; gap: 8px; }
  .nav a { margin: 0 11px; }
}

/* Sections */
section { padding: 64px 0; }
.section-tight { padding: 40px 0; }
.narrow { max-width: var(--max); }

h1 { font-size: 2.5rem; line-height: 1.12; letter-spacing: -0.02em; margin: 0 0 18px; }
h2 { font-size: 1.6rem; letter-spacing: -0.01em; margin: 0 0 14px; }
h3 { font-size: 1.2rem; margin: 0 0 8px; }
p { margin: 0 0 18px; }
.lead { font-size: 1.3rem; color: var(--ink-soft); line-height: 1.5; }

.eyebrow { text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.78rem; font-weight: 600; color: var(--accent-dark); margin: 0 0 12px; }

/* Hero */
.hero {
  padding: 84px 0 60px;
  background-color: var(--accent-soft);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='44'%3E%3Cg fill='%233a7d23' fill-opacity='0.06'%3E%3Crect x='20' y='13' width='4' height='18' rx='1'/%3E%3Crect x='13' y='20' width='18' height='4' rx='1'/%3E%3C/g%3E%3C/svg%3E");
  border-bottom: 1px solid var(--accent-line);
}
.hero h1 { max-width: 16ch; }
.hero .lead { max-width: 52ch; }

/* Buttons */
.btn {
  display: inline-block; background: var(--accent); color: #fff; padding: 13px 24px;
  border-radius: 8px; font-weight: 600; font-size: 1rem; margin-top: 8px;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.btn:hover { text-decoration: none; background: var(--accent-dark); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(43,94,26,0.18); }
.btn-ghost { background: #fff; color: var(--accent-dark); border: 1px solid var(--accent-line); }
.btn-ghost:hover { background: #fff; color: var(--accent-dark); border-color: var(--accent); box-shadow: 0 6px 16px rgba(43,94,26,0.10); }

/* Cards / grid */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 760px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card { background: var(--bg-panel); border: 1px solid var(--line); border-radius: 12px; padding: 26px; transition: transform 0.14s ease, box-shadow 0.14s ease, border-color 0.14s ease; }
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(26,32,37,0.08); border-color: var(--accent-line); }
.card h3 { margin-bottom: 6px; }
.card p { color: var(--ink-soft); margin: 0; font-size: 0.98rem; }
.card .num { color: var(--accent-dark); font-weight: 700; font-size: 0.85rem; letter-spacing: 0.04em; }
.card-icon { width: 46px; height: 46px; border-radius: 11px; background: var(--accent-soft); color: var(--accent); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.card-icon svg { width: 24px; height: 24px; stroke: var(--accent); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.panel { background: var(--accent-soft); border: 1px solid var(--accent-line); border-radius: 14px; padding: 40px; }

/* Credibility strip */
.cred { border-top: 1px solid var(--accent-line); margin-top: 30px; padding-top: 22px; display: flex; flex-wrap: wrap; gap: 10px 26px; }
.cred span { color: var(--ink-soft); font-size: 0.95rem; display: inline-flex; align-items: center; gap: 8px; }
.cred span::before { content: ""; width: 7px; height: 7px; border-radius: 2px; background: var(--accent); flex: none; }

/* About hero with portrait */
.about-hero { display: flex; gap: 30px; align-items: center; }
.about-hero .portrait { width: 190px; height: auto; flex: none; border-radius: 14px; border: 1px solid var(--accent-line); display: block; }
@media (max-width: 600px) {
  .about-hero { flex-direction: column; align-items: flex-start; gap: 20px; }
  .about-hero .portrait { width: 150px; }
}

/* Lists with checks */
ul.clean { list-style: none; padding: 0; margin: 0; }
ul.clean li { padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); }
ul.clean li:last-child { border-bottom: 0; }
ul.clean strong { color: var(--ink); }

/* Writing list */
.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li { padding: 22px 0; border-bottom: 1px solid var(--line); }
.post-list .post-date { color: var(--ink-soft); font-size: 0.85rem; }
.post-list h3 { margin: 4px 0 6px; font-size: 1.25rem; }
.post-list h3 a { color: var(--ink); }
.post-list p { color: var(--ink-soft); margin: 0; font-size: 1rem; }

/* Article */
.article { max-width: var(--max); }
.article .post-meta { color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 24px; }
.article h2 { margin-top: 36px; }
.article img { max-width: 100%; height: auto; border-radius: 8px; }
.article blockquote { border-left: 3px solid var(--accent); margin: 24px 0; padding: 4px 0 4px 20px; color: var(--ink-soft); font-style: italic; }
.article pre { background: #1a2025; color: #f3f3f0; padding: 18px; border-radius: 8px; overflow-x: auto; font-size: 0.9rem; }
.article code { background: var(--accent-soft); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }
.article pre code { background: none; padding: 0; }

.back-link { display: inline-block; margin-bottom: 24px; color: var(--ink-soft); font-size: 0.95rem; }

/* Footer */
.site-footer { border-top: 3px solid var(--accent); margin-top: 0; padding: 40px 0; background: var(--accent-soft); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: baseline; }
.footer-logo { height: 30px; width: auto; display: block; margin-bottom: 6px; }
.footer-brand { font-weight: 700; margin-right: 10px; }
.footer-tagline { color: var(--ink-soft); font-size: 0.95rem; }
.footer-links a { color: var(--ink-soft); margin-left: 18px; font-size: 0.92rem; }
.footer-links a:first-child { margin-left: 0; }
.footer-fine { width: 100%; color: var(--ink-soft); font-size: 0.82rem; margin-top: 8px; }

/* Draft banner (remove before launch) */
.draft-banner { background: #fff3cd; border-bottom: 1px solid #e6d8a0; color: #6b5800; text-align: center; font-size: 0.85rem; padding: 8px 16px; }