/* ==========================================================================
   MIRAE WEB — English Insights (/en/blog/)
   Header, buttons and footer follow the same spec as /en/index.html.
   ========================================================================== */

:root{
  --blue:#2563eb; --blue-dark:#1d4ed8; --navy:#111c33;
  --orange:#f97316;
  --ink:#1e293b; --muted:#64748b; --faint:#94a3b8;
  --line:#e6eaf1; --soft:#f6f8fc;
  --max:1180px;
  --cat-enf:#b45309; --cat-enf-bg:#fdf1e0;   /* Enforcement */
  --cat-lic:#0d9488; --cat-lic-bg:#e6f6f4;   /* Licensing */
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--ink);
  line-height:1.65;background:#fff;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ── header ─────────────────────────────────────────────── */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:800;
  letter-spacing:1.3px;text-transform:uppercase;color:var(--blue)}
.eyebrow::before{content:"";width:26px;height:2px;background:currentColor;border-radius:2px;flex:none}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;padding:13px 26px;
  border-radius:9px;transition:.2s;cursor:pointer;border:1.5px solid transparent}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(37,99,235,.28)}
header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:34px;height:72px}
.brand{display:flex;align-items:center;gap:11px}
.brand img{height:42px;width:42px;display:block}
.brand .bt{font-weight:800;font-size:19px;color:var(--navy);letter-spacing:.6px}
.menu{display:flex;gap:26px;list-style:none;margin-left:8px}
.menu a{font-size:15px;font-weight:500;color:#42506a;transition:color .2s}
.menu a:hover{color:var(--blue)}
.menu a.on{color:var(--blue);font-weight:600}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:16px}
.lang{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:600}
.lang a{color:#9aa6b8;transition:color .2s}
.lang a.on{color:var(--navy)}
.lang a:hover{color:var(--blue)}
.lang span{color:#cbd3df}
.burger{display:none;font-size:24px;background:none;border:0;color:var(--navy);cursor:pointer}

/* ── index page ─────────────────────────────────────────── */
.blk{padding:64px 0}
.head{max-width:760px}
.head h1{font-size:40px;font-weight:800;color:var(--navy);letter-spacing:-.9px;
  margin:14px 0 14px;line-height:1.2}
.head p{color:var(--muted);font-size:17px}

.cats{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}
.cats button{font-family:inherit;font-size:14px;font-weight:600;color:var(--ink);
  background:#fff;border:1.5px solid var(--line);border-radius:999px;padding:8px 17px;
  cursor:pointer;transition:.18s;display:inline-flex;align-items:center;gap:7px}
.cats button:hover{border-color:#c9d4e8}
.cats button[aria-pressed="true"]{background:var(--navy);border-color:var(--navy);color:#fff}
.cats button i{font-style:normal;font-size:12px;font-weight:700;opacity:.65;font-variant-numeric:tabular-nums}

.cat{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.2px;
  border-radius:999px;padding:4px 11px}
.cat.enf{color:var(--cat-enf);background:var(--cat-enf-bg)}
.cat.lic{color:var(--cat-lic);background:var(--cat-lic-bg)}

.feat{display:block;margin-top:34px;border:1px solid var(--line);border-radius:18px;
  padding:38px 40px;box-shadow:0 20px 50px -34px rgba(20,40,90,.5);transition:.22s;
  background:linear-gradient(180deg,#fbfcff,#f6f8fc)}
.feat:hover{box-shadow:0 26px 60px -30px rgba(20,40,90,.55);border-color:#d3dcea}
.feat h2{margin-top:14px;font-size:29px;font-weight:800;color:var(--navy);
  letter-spacing:-.6px;line-height:1.3;max-width:42ch;text-wrap:balance}
.feat:hover h2{color:var(--blue)}
.feat .ex{margin-top:13px;font-size:16px;color:var(--muted);max-width:70ch}
.feat .meta{margin-top:18px;font-size:13px;color:var(--faint)}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:22px}
.card{border:1px solid var(--line);border-radius:16px;padding:24px 26px 26px;
  display:flex;flex-direction:column;transition:.2s}
.card:hover{border-color:#c9d4e8;box-shadow:0 16px 34px -24px rgba(20,40,90,.5)}
.card h3{margin-top:11px;font-size:18px;font-weight:700;color:var(--navy);
  letter-spacing:-.3px;line-height:1.4}
.card:hover h3{color:var(--blue)}
.card .ex{margin-top:9px;font-size:14.5px;color:var(--muted)}
.card .meta{margin-top:auto;padding-top:18px;font-size:12.5px;color:var(--faint)}
.empty{margin-top:26px;padding:44px;text-align:center;border:1px dashed var(--line);
  border-radius:16px;color:var(--faint);font-size:15px}

/* ── article ────────────────────────────────────────────── */
.post{max-width:760px;margin:0 auto;padding:0 24px}
.post .top{padding:52px 0 0}
.post h1{font-size:38px;font-weight:800;color:var(--navy);letter-spacing:-1px;
  line-height:1.25;margin:16px 0 0}
.post .sub{margin-top:16px;font-size:18px;color:var(--muted)}
.post .byline{margin-top:22px;padding:14px 0;border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px;
  align-items:center;font-size:13.5px;color:var(--faint)}
.post .byline span::after{content:"·";margin-left:8px;color:#cbd5e1}
.post .byline span:last-child::after{content:""}

.post .body{padding:8px 0 30px}
.post .body h2{margin-top:46px;font-size:26px;font-weight:800;color:var(--navy);
  letter-spacing:-.6px;line-height:1.35}
.post .body h3{margin-top:32px;font-size:19.5px;font-weight:700;color:var(--navy);letter-spacing:-.3px}
.post .body p{margin-top:16px;font-size:17px;line-height:1.85;color:#31405a}
.post .body ul,.post .body ol{margin-top:16px;padding-left:4px;list-style:none}
.post .body li{position:relative;padding-left:24px;margin-bottom:11px;font-size:17px;
  line-height:1.8;color:#31405a}
.post .body ul li::before{content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;
  border-radius:2px;background:var(--blue)}
.post .body ol{counter-reset:n}
.post .body ol li{counter-increment:n;padding-left:30px}
.post .body ol li::before{content:counter(n);position:absolute;left:0;top:2px;
  font-size:13px;font-weight:800;color:var(--blue)}
.post .body em{font-style:normal;color:var(--blue)}
.post .body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:15px;background:var(--soft);border:1px solid var(--line);border-radius:5px;
  padding:1px 6px;color:var(--navy)}
.post .body a.ext{color:var(--blue);text-decoration:underline;text-underline-offset:3px}

.note{margin-top:30px;padding:22px 24px;background:var(--soft);border:1px solid var(--line);
  border-left:4px solid var(--blue);border-radius:0 12px 12px 0}
.note b{display:block;font-size:14px;font-weight:800;color:var(--navy);margin-bottom:7px}
.note p{margin-top:0 !important;font-size:15.5px !important;line-height:1.75 !important;color:var(--muted) !important}

.key{margin-top:34px;border:1px solid var(--line);border-radius:14px;padding:24px 26px;
  background:linear-gradient(180deg,#fbfcff,#f6f8fc)}
.key h4{font-size:15px;font-weight:800;color:var(--navy);letter-spacing:.2px;margin-bottom:14px}
.key li{font-size:15.5px;line-height:1.7;margin-bottom:9px}

.tbl{width:100%;margin-top:26px;border-collapse:collapse;font-size:15.5px}
.tbl th{text-align:left;padding:12px 14px;border-bottom:2px solid var(--line);color:var(--navy);font-weight:700}
.tbl td{padding:12px 14px;border-bottom:1px solid var(--line);color:#41405a;vertical-align:top}
.tbl td:first-child{font-weight:600;color:var(--navy)}

.origin{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--faint);line-height:1.8}
.pnav{margin:36px 0 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.pnav a{font-size:14.5px;font-weight:600;color:var(--blue)}

.ctaband{background:linear-gradient(120deg,#1d4ed8,#2563eb 55%,#3b82f6);color:#fff;
  border-radius:22px;padding:46px 44px;display:flex;align-items:center;
  justify-content:space-between;gap:26px;flex-wrap:wrap;
  box-shadow:0 30px 60px -24px rgba(37,99,235,.5)}
.ctaband h2{font-size:25px;font-weight:800;letter-spacing:-.4px}
.ctaband p{opacity:.9;font-size:15px;margin-top:6px}
.ctaband .btn-white{flex:none;background:#fff;color:var(--blue);font-weight:600;font-size:15px;
  padding:13px 26px;border-radius:9px;transition:.2s}
.ctaband .btn-white:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,0,0,.2)}

/* ── footer ─────────────────────────────────────────────── */
footer{background:var(--navy);color:#9fb0c9;padding:40px 0;margin-top:64px}
footer .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.fbrand{display:flex;align-items:center;gap:10px}
.fbrand img{height:36px;width:36px;display:block}
.fbrand .bt{font-weight:800;font-size:17px;color:#fff;letter-spacing:.6px}
.fcopy{font-size:13px}
.fcopy a{text-decoration:underline}

@media (max-width:900px){
  .menu,.nav-cta .btn{display:none}
  .burger{display:block;margin-left:auto}
  .menu.open{display:flex;position:absolute;top:72px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;padding:6px 0;border-bottom:1px solid var(--line);
    box-shadow:0 14px 24px rgba(0,0,0,.06)}
  .menu.open li{padding:12px 24px;border-bottom:1px solid var(--line)}
  .blk{padding:44px 0}
  .head h1{font-size:30px}
  .feat{padding:26px 24px}
  .feat h2{font-size:23px}
  .cards{grid-template-columns:1fr;gap:18px}
  .post h1{font-size:28px}
  .post .sub{font-size:16px}
  .post .body h2{font-size:22px;margin-top:36px}
  .post .body p,.post .body li{font-size:16px}
  .ctaband{padding:32px 26px}
  .ctaband h2{font-size:21px}
  .tbl{display:block;overflow-x:auto}
}
@media print{
  header,footer,.ctaband,.pnav,.cats{display:none}
  .post{max-width:none}
}