:root {
  --bg: #f3eee4;
  --bg-2: #ebe3d4;
  --paper: #fbf7ef;
  --ink: #241c14;
  --ink-soft: #5c5146;
  --line: #d7cbb8;
  --accent: #9a3b24;
  --accent-2: #c46a3a;
  --good: #2f6b4f;
  --warn: #8a3b1e;
  --shadow: 0 18px 40px rgba(36, 28, 20, 0.08);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #f7e7c8 0%, transparent 50%),
    var(--bg);
  font-family: var(--sans);
  line-height: 1.55;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }

.wrap { width: min(980px, calc(100% - 32px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(243, 238, 228, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 72px;
}
.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  min-width: max-content;
}
.brand-name {
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}
.brand-tag {
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-left: auto;
  align-items: center;
}
.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav .admin-link {
  border: 1px solid var(--line);
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--paper);
}

.hero { padding: 56px 0 20px; }
.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.08;
  margin: 0 0 12px;
  letter-spacing: -0.03em;
}
.hero p { margin: 0; color: var(--ink-soft); max-width: 34em; }

.post-list { display: grid; gap: 16px; padding: 12px 0 64px; }
.post-card {
  display: block;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 24px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
}
.post-card:hover { border-color: #c8b79a; }
.post-card h2 {
  font-family: var(--serif);
  font-size: 1.55rem;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.meta { color: var(--ink-soft); font-size: 0.84rem; margin-bottom: 8px; }
.excerpt { margin: 0; color: var(--ink-soft); }

.empty {
  padding: 48px 24px;
  text-align: center;
  color: var(--ink-soft);
  border: 1px dashed var(--line);
  border-radius: 18px;
}

article.post {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: clamp(24px, 4vw, 48px);
  margin: 36px 0 72px;
  box-shadow: var(--shadow);
}
article.post h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.12;
  margin: 0 0 10px;
}
.md :where(h1, h2, h3) { font-family: var(--serif); letter-spacing: -0.02em; }
.md h1 { font-size: 1.8rem; }
.md h2 { font-size: 1.4rem; margin-top: 1.6em; }
.md p, .md li { font-size: 1.05rem; }
.md pre, .md code {
  font-family: var(--mono);
  font-size: 0.92em;
}
.md pre {
  background: var(--bg-2);
  padding: 14px 16px;
  overflow: auto;
  border-radius: 12px;
}
.md blockquote {
  margin: 1.2em 0;
  padding: 0 0 0 16px;
  border-left: 3px solid var(--accent-2);
  color: var(--ink-soft);
}
.md img { max-width: 100%; border-radius: 12px; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 24px 0 40px;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.admin-shell { padding: 28px 0 72px; }
.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}
.panel h1, .panel h2 {
  font-family: var(--serif);
  margin: 0 0 14px;
}
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
label { display: block; font-size: 0.86rem; margin: 0 0 6px; color: var(--ink-soft); }
input[type="text"], input[type="password"], textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 12px;
  padding: 10px 12px;
  font: inherit;
}
textarea { min-height: 280px; font-family: var(--mono); line-height: 1.45; }
.btn {
  appearance: none;
  border: 0;
  background: var(--ink);
  color: var(--paper);
  border-radius: 999px;
  padding: 10px 16px;
  font: inherit;
  cursor: pointer;
}
.btn.secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.danger { background: var(--warn); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.hint { color: var(--ink-soft); font-size: 0.86rem; }
.flash {
  padding: 10px 12px;
  border-radius: 12px;
  margin: 0 0 14px;
}
.flash.err { background: #f3d7cc; color: #6d2a16; }
.flash.ok { background: #d7eadc; color: #21543c; }

.admin-list { display: grid; gap: 10px; }
.admin-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.badge {
  display: inline-block;
  font-size: 0.72rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
  margin-left: 8px;
  color: var(--ink-soft);
}
.badge.draft { background: var(--bg-2); }

.editor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.preview {
  background: var(--bg);
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  min-height: 280px;
  overflow: auto;
}

@media (max-width: 800px) {
  .header-inner { flex-wrap: wrap; padding: 12px 0; }
  .nav { margin-left: 0; }
  .editor-grid { grid-template-columns: 1fr; }
  .admin-item { grid-template-columns: 1fr; }
}