:root {
  --red: #e81318;
  --red-dark: #b10f13;
  --ink: #1a1a1a;
  --muted: #666;
  --bg: #fff8f8;
  --card: #ffffff;
  --line: #f0dede;
  --radius: 16px;
  --font: "Segoe UI", "Sarabun", "Noto Sans Thai", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
a { color: var(--red); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
.container { width: min(1100px, 92vw); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .9rem 0;
}
.brand {
  display: flex; align-items: center; gap: .7rem;
  font-weight: 900; color: var(--ink); text-decoration: none;
}
.brand img { width: 40px; height: 40px; border-radius: 10px; }
.brand span { font-size: 1.15rem; letter-spacing: .02em; }
.nav-links { display: flex; flex-wrap: wrap; gap: .35rem 1rem; align-items: center; }
.nav-links a { color: var(--ink); font-weight: 700; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .4rem; border: 0; cursor: pointer;
  background: var(--red); color: #fff !important;
  font-weight: 800; border-radius: 999px;
  padding: .75rem 1.25rem; text-decoration: none !important;
}
.btn:hover { background: var(--red-dark); }
.btn.secondary { background: #fff; color: var(--red) !important; border: 2px solid var(--red); }
.hero {
  padding: 4rem 0 3rem;
  background:
    radial-gradient(circle at 90% 10%, rgba(232,19,24,.18), transparent 40%),
    linear-gradient(180deg, #fff, var(--bg));
}
.hero-grid {
  display: grid; gap: 2rem;
  grid-template-columns: 1.2fr .8fr; align-items: center;
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.15; margin: 0 0 1rem;
}
.hero p.lead { font-size: 1.15rem; color: var(--muted); margin: 0 0 1.5rem; }
.hero-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  padding: 1.4rem; box-shadow: 0 12px 40px rgba(180,20,20,.08);
}
.hero-card h3 { margin: 0 0 .6rem; }
.section { padding: 3rem 0; }
.section h2 { margin: 0 0 1.2rem; font-size: 1.8rem; }
.grid-3 {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: 1fr; }
}
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.2rem;
}
.card h3 { margin: 0 0 .5rem; }
.muted { color: var(--muted); }
.posts { display: grid; gap: 1rem; }
.post-item {
  display: grid; gap: 1rem; grid-template-columns: 180px 1fr;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
}
@media (max-width: 700px) {
  .post-item { grid-template-columns: 1fr; }
}
.post-item .thumb {
  min-height: 140px; background: #f3e0e0 center/cover no-repeat;
}
.post-item .body { padding: 1rem 1.1rem 1.1rem 0; }
@media (max-width: 700px) {
  .post-item .body { padding: 0 1rem 1rem; }
}
.article {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.5rem;
}
.article h1 { margin-top: 0; }
.article-meta { color: var(--muted); font-size: .95rem; margin-bottom: 1.2rem; }
.prose img { border-radius: 12px; }
.site-footer {
  margin-top: 3rem; padding: 2rem 0;
  border-top: 1px solid var(--line); color: var(--muted); font-size: .95rem;
}
.admin-shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
@media (max-width: 900px) {
  .admin-shell { grid-template-columns: 1fr; }
}
.admin-side {
  background: #1b1b1b; color: #fff; padding: 1.2rem;
}
.admin-side a {
  display: block; color: #fff; padding: .55rem .7rem; border-radius: 10px;
  font-weight: 700; margin: .2rem 0;
}
.admin-side a.active, .admin-side a:hover { background: rgba(255,255,255,.12); text-decoration: none; }
.admin-main { padding: 1.2rem; }
.admin-main .panel {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem; margin-bottom: 1rem;
}
label { display: block; font-weight: 700; margin: .7rem 0 .3rem; }
input[type=text], input[type=email], input[type=password], input[type=url], textarea, select {
  width: 100%; padding: .7rem .8rem; border-radius: 10px;
  border: 1px solid #ddd; font: inherit;
}
textarea { min-height: 160px; resize: vertical; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: .55rem; border-bottom: 1px solid var(--line); font-size: .95rem; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
@media (max-width: 800px) { .stats-grid { grid-template-columns: 1fr; } }
.stat { padding: 1rem; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.stat .n { font-size: 2rem; font-weight: 900; color: var(--red); }
.login-box {
  max-width: 420px; margin: 4rem auto; padding: 1.5rem;
  background: #fff; border-radius: var(--radius); border: 1px solid var(--line);
}
.badge {
  display: inline-block; padding: .15rem .5rem; border-radius: 999px;
  background: #fde8e8; color: var(--red); font-size: .8rem; font-weight: 800;
}
.badge.draft { background: #eee; color: #555; }
.err { color: #b00020; font-weight: 700; }
.ok { color: #0a7a32; font-weight: 700; }