/* Season Group Co., Ltd. — static site styles */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+Thai:wght@400;500;600;700&family=Sarabun:wght@400;600;700&display=swap');

:root{
  --ink:#101a2b;
  --ink-soft:#42536b;
  --paper:#f7f5f0;
  --white:#ffffff;
  --line:#e3ded4;
  --brand:#0f4c81;      /* ink blue */
  --brand-dark:#0a3459;
  --accent:#c8102e;     /* press red */
  --gold:#b48c3a;
  --shadow:0 10px 30px rgba(16,26,43,.08);
  --radius:14px;
  --max:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:'IBM Plex Sans Thai','Sarabun',system-ui,sans-serif;
  font-size:17px;line-height:1.9;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}

/* ---------- Header ---------- */
.topbar{background:var(--brand-dark);color:#dbe7f2;font-size:14px}
.topbar .wrap{display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between;padding:8px 20px}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 20px;max-width:var(--max);margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:20px;color:var(--ink)}
.brand:hover{text-decoration:none}
.logo{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;display:grid;place-items:center;font-weight:700;letter-spacing:.5px;font-size:15px}
.brand small{display:block;font-weight:400;font-size:12px;color:var(--ink-soft);line-height:1.2}
.menu{display:flex;gap:4px;flex-wrap:wrap;list-style:none;margin:0;padding:0}
.menu a{display:block;padding:8px 12px;border-radius:8px;color:var(--ink);font-size:15.5px}
.menu a:hover{background:#eef2f7;text-decoration:none}
.menu a.active{background:var(--brand);color:#fff}
.nav-cta{background:var(--accent);color:#fff!important;padding:9px 16px;border-radius:999px;font-weight:600}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 12px;font:inherit;cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;background:#0a3459}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38}
.hero .inner{position:relative;max-width:var(--max);margin:0 auto;padding:96px 20px 88px}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.3;margin:0 0 16px;max-width:22ch}
.hero p.lead{font-size:clamp(17px,2.2vw,21px);max-width:60ch;color:#e6eef7}
.eyebrow{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);padding:6px 14px;border-radius:999px;font-size:14px;margin-bottom:18px}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-block;padding:13px 26px;border-radius:999px;font-weight:600}
.btn-primary{background:var(--accent);color:#fff}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-solid{background:var(--brand);color:#fff}
.btn:hover{text-decoration:none;opacity:.92}

/* ---------- Sections ---------- */
section{padding:64px 0}
section.tight{padding:40px 0}
.alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:clamp(24px,3.4vw,34px);line-height:1.35;margin:0 0 14px}
h3{font-size:21px;margin:28px 0 10px}
h4{font-size:18px;margin:22px 0 8px}
.kicker{color:var(--accent);font-weight:600;letter-spacing:.08em;font-size:14px;text-transform:uppercase;margin:0 0 8px}
.muted{color:var(--ink-soft)}
.lead{font-size:18.5px}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card h3{margin-top:0}
.card.flat{box-shadow:none}
.figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.figure img{aspect-ratio:3/2;object-fit:cover;width:100%}
.figure figcaption{padding:12px 16px;font-size:14.5px;color:var(--ink-soft)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-align:center}
.stat b{display:block;font-size:30px;color:var(--brand)}
.stat span{font-size:14.5px;color:var(--ink-soft)}
ul.check{list-style:none;padding:0;margin:12px 0}
ul.check li{padding-left:30px;position:relative;margin-bottom:10px}
ul.check li:before{content:"✓";position:absolute;left:0;top:0;color:var(--accent);font-weight:700}
table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-size:16px}
th,td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#f0f3f7;font-weight:600}
tr:last-child td{border-bottom:none}
blockquote{margin:22px 0;padding:18px 22px;background:#fff;border-left:4px solid var(--gold);border-radius:8px;color:var(--ink-soft)}
.tag{display:inline-block;background:#eef2f7;color:var(--brand-dark);border-radius:999px;padding:4px 12px;font-size:13.5px;margin:0 6px 6px 0}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:12px}
details summary{cursor:pointer;font-weight:600}
.callout{background:linear-gradient(135deg,var(--brand-dark),var(--brand));color:#fff;border-radius:18px;padding:36px}
.callout h2{margin-top:0}
.callout a.btn-primary{background:#fff;color:var(--brand-dark)}
.toc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px}
.toc ol{margin:8px 0 0 18px;padding:0}
.toc li{margin-bottom:4px}
form label{display:block;font-weight:600;font-size:15px;margin:14px 0 6px}
input,textarea,select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff}
.note{font-size:14.5px;color:var(--ink-soft)}

/* ---------- Footer ---------- */
footer.site{background:#0b1a2b;color:#c3d2e2;padding:56px 0 24px;font-size:15.5px}
footer.site a{color:#fff}
footer.site h4{color:#fff;margin:0 0 12px;font-size:16.5px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:8px}
.copy{border-top:1px solid rgba(255,255,255,.14);margin-top:34px;padding-top:18px;font-size:14px;color:#9fb2c6;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

@media(max-width:900px){
  .g3,.g4,.stats,footer .cols{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
}
@media(max-width:680px){
  .g2,.g3,.g4,.stats,footer .cols{grid-template-columns:1fr}
  .menu{display:none;width:100%;flex-direction:column}
  .menu.open{display:flex}
  .nav{flex-wrap:wrap}
  .nav-toggle{display:block}
  section{padding:44px 0}
}