*{box-sizing:border-box}
body{margin:0;font-family:'Noto Sans Thai',Arial,sans-serif;background:#f5f5f2;color:#1f2933}
a{text-decoration:none;color:inherit}
.sidebar{position:fixed;inset:0 auto 0 0;width:260px;background:#151513;color:#fff;padding:24px 18px}
.brand{display:flex;gap:12px;align-items:center;margin-bottom:30px}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#d9b46f;color:#151513;font-weight:800;font-size:24px}
.brand strong{display:block;font-size:18px;line-height:1.25}.brand small{color:#aaa}
nav{display:grid;gap:8px}nav a{padding:12px 14px;border-radius:12px;color:#d8d8d8}nav a:hover{background:#252520;color:#fff}
.main{margin-left:260px;min-height:100vh;padding:28px}
.topbar{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:24px}
.topbar p{margin:0;color:#777;font-size:14px}.topbar h1{margin:0;font-size:32px}
.ghost-btn,.primary-btn,.danger-btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;padding:11px 16px;font-weight:700;cursor:pointer}
.ghost-btn{border:1px solid #ddd;background:#fff;color:#333}.primary-btn{background:#151513;color:#fff}.danger-btn{background:#b42318;color:#fff}
.grid{display:grid;gap:18px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:#fff;border:1px solid #e7e5df;border-radius:18px;padding:20px;box-shadow:0 8px 24px rgba(20,20,20,.04)}
.stat strong{display:block;font-size:30px;margin-top:8px}.stat span{color:#777}
.table-wrap{overflow:auto;border-radius:16px;border:1px solid #e7e5df;background:#fff}
table{width:100%;border-collapse:collapse}th,td{padding:13px 14px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}th{background:#faf9f6;color:#666;font-size:13px}tr:last-child td{border-bottom:0}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.form{display:grid;gap:16px}.field label{display:block;font-size:13px;color:#666;margin-bottom:7px}
input,select,textarea{width:100%;border:1px solid #ddd;border-radius:12px;padding:11px 12px;font:inherit;background:#fff}textarea{min-height:96px;resize:vertical}
.actions{display:flex;gap:10px;flex-wrap:wrap}.badge{display:inline-block;border-radius:99px;padding:4px 10px;font-size:12px;font-weight:700}
.good{background:#e8f7ee;color:#146c2e}.bad{background:#fdebea;color:#a61b12}.warn{background:#fff3d6;color:#8a5a00}.muted{background:#eee;color:#666}
.notice{padding:12px 14px;border-radius:12px;margin-bottom:16px;background:#e8f7ee;color:#146c2e}
.login-page{min-height:100vh;display:grid;place-items:center;padding:20px;background:#151513}.login-box{width:100%;max-width:430px;background:#fff;border-radius:22px;padding:30px}.login-box h1{margin:0 0 18px}
@media(max-width:900px){.sidebar{position:static;width:auto}.main{margin-left:0;padding:18px}.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}}