:root {
  /* ── โทนสีตามแบรนด์ meetingthai.com ── */
  --brand:        #e43f3f;   /* แดงแบรนด์ */
  --brand-dark:   #c92626;   /* แดงเข้ม (hover / gradient) */
  --ink:          #1a1a2e;   /* กรมท่าเข้ม */
  --gold:         #ffd700;   /* ทอง (จุดเน้น) */
  --gold-deep:    #ffa500;

  --bg: #ffffff;
  --fg: var(--ink);
  --muted: #5a6470;
  --line: #ececec;
  --card: #fafafa;
  --accent: var(--brand);
  --accent-2: var(--brand-dark);
  --accent-soft: #fff5f5;
  --accent-line: #f1c0c0;
  --hero-a: var(--brand);
  --hero-b: var(--brand-dark);

  --radius: 14px;
  --radius-lg: 18px;
  --radius-pill: 50px;
  --shadow-sm: 0 4px 14px rgba(0,0,0,.05);
  --shadow-md: 0 10px 30px rgba(0,0,0,.07);
  --shadow-lg: 0 18px 44px rgba(0,0,0,.10);

  --wrap: 100%;
  --pad: clamp(16px, 3.5vw, 56px);
  --gap: clamp(16px, 3vw, 28px);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14141f;
    --fg: #eceef5;
    --muted: #9aa4b5;
    --line: #2a2a3c;
    --card: #1c1c2c;
    --accent: #ff6b6b;
    --accent-2: #ff8a8a;
    --accent-soft: #2c1b20;
    --accent-line: #4a2b2f;
    --hero-a: #a32020;
    --hero-b: #5c1420;
    --shadow-sm: 0 4px 14px rgba(0,0,0,.35);
    --shadow-md: 0 10px 30px rgba(0,0,0,.45);
    --shadow-lg: 0 18px 44px rgba(0,0,0,.55);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Sarabun",
    "Noto Sans Thai", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(16px, 0.6vw + 15px, 18px);
  line-height: 1.8;
  overflow-x: hidden;
}
img, svg, video { max-width: 100%; height: auto; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--pad); }

/* ---------- แถบบน ---------- */
header.site {
  border-bottom: 1px solid var(--line); padding: 14px 0;
  border-top: 3px solid var(--brand);
  position: sticky; top: 0; z-index: 20;
  background: var(--bg);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
header.site a.brand { font-weight: 700; text-decoration: none; color: var(--accent); font-size: clamp(16px, 2.4vw, 19px); }
header.site nav { display: flex; flex-wrap: wrap; gap: 4px 16px; }
header.site nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
header.site nav a:hover { color: var(--accent); }

/* ---------- ตัวอักษร ---------- */
h1 { font-size: clamp(26px, 5.2vw, 40px); line-height: 1.3; margin: 0 0 14px; letter-spacing: -0.01em; }
h2 { font-size: clamp(21px, 3.4vw, 28px); line-height: 1.4; margin: clamp(32px, 6vw, 52px) 0 14px; }
h3 { font-size: clamp(18px, 2.6vw, 21px); margin: 28px 0 8px; }
p { margin: 0 0 18px; }
a { color: var(--accent); }
ul, ol { margin: 0 0 18px; padding-left: 22px; }
li { margin-bottom: 8px; }
hr { border: 0; border-top: 1px solid var(--line); margin: clamp(32px, 6vw, 48px) 0; }
.lede { font-size: clamp(18px, 2.4vw, 21px); line-height: 1.75; color: var(--fg); }
.meta { color: var(--muted); font-size: 15px; margin: 0 0 22px; }
.crumb { font-size: 14px; color: var(--muted); margin: 0 0 14px; }
.crumb a { color: var(--muted); }

/* ---------- ป้ายกำกับ ---------- */
.tags { list-style: none; padding: 0; margin: 0 0 26px; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { margin: 0; }
.tag, .tags span {
  display: inline-block; background: var(--accent-soft); color: var(--accent);
  border-radius: var(--radius-pill); padding: 3px 14px; font-size: 13.5px; white-space: nowrap;
}

/* ---------- hero หัวบทความ/หน้าแรก ---------- */
.hero {
  background: linear-gradient(135deg, var(--hero-a), var(--hero-b));
  color: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  padding: clamp(26px, 6vw, 52px) clamp(20px, 5vw, 44px);
  margin: clamp(20px, 4vw, 34px) 0 clamp(28px, 5vw, 44px);
}
.hero h1 { color: #fff; margin-bottom: 16px; }
.hero p { color: rgba(255,255,255,.92); margin-bottom: 0; font-size: clamp(17px, 2.2vw, 20px); }
.hero .kicker {
  font-size: 14px; letter-spacing: .08em; text-transform: uppercase;
  color: rgba(255,255,255,.75); margin: 0 0 10px;
}

/* ---------- ตัวเลขเด่น ---------- */
.stats {
  list-style: none; padding: 0; margin: 0 0 clamp(24px, 5vw, 40px);
  display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}
.stats li {
  margin: 0; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px 18px; text-align: center;
  box-shadow: var(--shadow-sm);
}
.stats .num {
  display: block; font-size: clamp(26px, 4.6vw, 36px); font-weight: 700;
  color: var(--accent); line-height: 1.25;
}
.stats .label { display: block; font-size: 14.5px; color: var(--muted); margin-top: 6px; }
.stats li::after {
  content: ""; display: block; width: 34px; height: 3px; margin: 12px auto 0;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
}

/* ---------- การ์ดฟีเจอร์ ---------- */
.features {
  list-style: none; padding: 0; margin: 0 0 clamp(24px, 5vw, 40px);
  display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.features li {
  margin: 0; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 22px 18px; box-shadow: var(--shadow-sm);
}
.features h3 { margin: 0 0 8px; font-size: 18px; }
.features p { margin: 0; font-size: 15.5px; color: var(--muted); }

/* ---------- รายการติ๊กถูก ---------- */
.checklist { list-style: none; padding: 0; margin: 0 0 22px; }
.checklist li { position: relative; padding-left: 30px; }
.checklist li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--brand); font-weight: 700;
}

/* ---------- กล่องเน้น ---------- */
.note {
  background: var(--accent-soft); border: 1px solid var(--accent-line); border-left: 4px solid var(--accent);
  border-radius: var(--radius); padding: 20px 22px; margin: 0 0 26px;
}
.note strong { display: block; margin-bottom: 6px; }
.note p:last-child { margin-bottom: 0; }

/* ---------- ปุ่ม / CTA ---------- */
.btn {
  display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  border: 0; border-radius: var(--radius-pill); padding: 12px 30px; font-size: 16.5px; font-weight: 600;
  font-family: inherit; cursor: pointer; text-align: center;
}
.btn { box-shadow: var(--shadow-sm); transition: background .18s ease, box-shadow .18s ease; }
.btn:hover { background: var(--brand-dark); box-shadow: var(--shadow-md); }
.btn.ghost:hover { background: var(--accent-soft); }
.btn.ghost { background: none; color: var(--accent); border: 1.5px solid var(--accent); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 0 0 20px; }
@media (max-width: 420px) { .btn { display: block; width: 100%; } .btn-row { display: block; } .btn-row .btn { margin-bottom: 10px; } }

.cta {
  background: var(--accent-soft); border: 1px solid var(--accent-line); border-radius: var(--radius-lg);
  padding: clamp(24px, 5vw, 40px); text-align: center; margin: clamp(28px, 5vw, 44px) 0 0;
}
.cta h2 { margin: 0 0 10px; }
.cta p { color: var(--muted); max-width: 46ch; margin-left: auto; margin-right: auto; }
.cta .btn-row { justify-content: center; }

/* ---------- ตาราง (มีน้อย แต่ต้องเลื่อนได้) ---------- */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 0 22px; }
table { border-collapse: collapse; width: 100%; min-width: 460px; font-size: 15.5px; }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
th { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

/* ---------- การ์ดบทความหน้าแรก ---------- */
.cards {
  list-style: none; padding: 0; margin: 0 0 clamp(24px, 5vw, 40px);
  display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}
.cards li { margin: 0; }
.card {
  display: flex; flex-direction: column; height: 100%; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 22px 18px; text-decoration: none; color: inherit;
}
.card { transition: box-shadow .18s ease, border-color .18s ease, transform .18s ease; box-shadow: var(--shadow-sm); }
.card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card h3 { margin: 0 0 8px; font-size: 18px; color: var(--accent); }
.card p { margin: 0 0 14px; font-size: 15.5px; color: var(--muted); flex: 1; }
.card .tag { align-self: flex-start; }

/* ---------- บทความแนะนำ (สุ่มอัตโนมัติ) ---------- */
.featured {
  border: 1px solid var(--accent-line); border-left: 5px solid var(--accent);
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius); padding: clamp(22px, 4vw, 32px);
  margin: 0 0 clamp(28px, 5vw, 44px); background: var(--card);
}
.featured .kicker {
  font-size: 13px; color: var(--muted); letter-spacing: .06em;
  text-transform: uppercase; margin: 0 0 8px;
}
.featured h2 { margin: 0 0 10px; font-size: clamp(20px, 3.2vw, 26px); }
.featured h2 a { text-decoration: none; }
.featured p { margin: 0 0 16px; }

/* ---------- ท้ายหน้า ---------- */
footer.site {
  border-top: 3px solid var(--brand); margin-top: clamp(40px, 7vw, 64px);
  padding: 26px 0 44px; color: var(--muted); font-size: 14.5px;
}
footer.site a { color: var(--muted); }
footer.site p { margin: 0 0 6px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

/* จอกว้างมาก: ให้เนื้อความอ่านสบายขึ้นโดยไม่ทิ้งพื้นที่ว่างข้างเดียว */
@media (min-width: 1500px) {
  article > p, article > ul, article > ol, article > .note, article > .table-scroll,
  main > p, main > ul.checklist { max-width: 105ch; }
  .hero p { max-width: 105ch; }
}