:root{
    --primary: oklch(0.32 0.14 24);
    --deep: oklch(0.20 0.11 22);
    --gold: oklch(0.78 0.10 75);
    --bg: oklch(0.98 0.005 40);
    --surface: #fff;
    --text: oklch(0.22 0.01 40);
    --text-soft: oklch(0.48 0.01 40);
    --border: oklch(0.90 0.01 40);
  }
  *{box-sizing:border-box;}
  body{margin:0;font-family:'Noto Sans Thai',sans-serif;background:var(--bg);color:var(--text);}
  a{color:var(--primary);text-decoration:none;}
  input,select{font-family:'Noto Sans Thai',sans-serif;}

  header{position:sticky;top:0;z-index:50;background:var(--deep);box-shadow:0 2px 12px rgba(0,0,0,.15);}
  .headerbar{max-width:1280px;margin:0 auto;padding:14px clamp(16px,4vw,32px);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
  .brand{display:flex;align-items:center;gap:10px;color:#fff;}
  .brand .logo{width:34px;height:34px;border-radius:8px;background:var(--gold);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--deep);font-size:16px;}
  .brand .name{font-size:13px;font-weight:600;opacity:.95;}
  .brand .fac{font-size:11px;opacity:.7;}
  .brand .program{font-size:12px;opacity:.7;}
  .navright{display:flex;align-items:center;gap:14px;}
  .navright a{color:rgba(255,255,255,.85);font-size:14px;}
  .langtoggle{display:flex;background:rgba(255,255,255,.12);border-radius:999px;padding:3px;}
  .langtoggle button{border:none;background:transparent;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;cursor:pointer;color:rgba(255,255,255,.85);}
  .langtoggle button.active{background:#fff;color:var(--deep);}

  .hero{background:linear-gradient(135deg,var(--deep),var(--primary));padding:clamp(36px,6vw,64px) clamp(16px,4vw,32px) clamp(60px,8vw,90px);text-align:center;color:#fff;}
  .hero h1{font-size:clamp(24px,4vw,36px);font-weight:700;margin:0 0 8px;}
  .hero .sub{font-size:clamp(14px,2vw,16px);opacity:.85;}

  .wrap{max-width:1180px;margin:-40px auto 0;padding:0 clamp(16px,4vw,32px) 60px;}
  .toolbar{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px 24px;box-shadow:0 20px 50px -25px rgba(0,0,0,.3);display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-bottom:28px;}
  .toolbar input{flex:1;min-width:200px;border:1px solid var(--border);border-radius:10px;padding:11px 16px;font-size:14px;background:var(--bg);}
  .toolbar select{border:1px solid var(--border);border-radius:10px;padding:11px 14px;font-size:14px;background:var(--bg);}

  .area-section{margin-bottom:32px;}
  .area-title{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .area-title .bar{width:8px;height:22px;background:var(--primary);border-radius:3px;}
  .area-title h2{font-size:17px;font-weight:700;margin:0;}
  .area-title .count{font-size:12px;color:var(--text-soft);background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:2px 10px;}
  .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px;}
  .card{text-decoration:none;color:inherit;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px 18px;text-align:center;display:flex;flex-direction:column;align-items:center;box-shadow:0 6px 20px -14px rgba(0,0,0,.15);transition:transform .15s,box-shadow .15s;}
  .card:hover{transform:translateY(-4px);box-shadow:0 16px 30px -18px var(--primary);}
  .card .photo{width:150px;height:150px;margin-bottom:14px;border:3px solid var(--border);border-radius:50%;background:repeating-linear-gradient(45deg,var(--border) 0 8px,transparent 8px 16px);display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--text-soft);}
  .card .cname{font-size:15.5px;font-weight:700;margin-bottom:4px;line-height:1.3;}
  .card .cpos{font-size:12.5px;color:var(--primary);font-weight:600;margin-bottom:6px;}
  .card .cdept{font-size:12px;color:var(--text-soft);}

  .empty{text-align:center;padding:60px 20px;color:var(--text-soft);font-size:15px;display:none;}
  footer{background:var(--deep);color:rgba(255,255,255,.8);padding:28px clamp(16px,4vw,32px);text-align:center;font-size:13px;}