:root{--nav:#0d1b2a;--blue:#0a5ea8;--bg:#f5f7fa;--line:#e4e7ec;--text:#101828;--muted:#667085}
*{box-sizing:border-box}body{margin:0;font-family:Arial,"Noto Sans Thai",sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:var(--blue)}
.admin-shell{min-height:100vh;display:grid;grid-template-columns:240px 1fr}.sidebar{position:sticky;top:0;height:100vh;background:var(--nav);padding:24px 18px;color:#fff;display:flex;flex-direction:column}.admin-logo{font-size:22px;font-weight:800;color:#fff;padding:8px 10px 26px}.admin-logo small{font-size:10px;color:#98a2b3;margin-left:5px}
.sidebar nav{display:grid;gap:6px}.sidebar nav a{color:#d0d5dd;padding:12px;border-radius:8px}.sidebar nav a:hover{background:#172a40;color:#fff}.sidebar form{margin-top:auto}.logout{width:100%;background:transparent;color:#fda29b;border:1px solid #344054;padding:11px;border-radius:8px;cursor:pointer}
.admin-main{padding:36px;min-width:0}.admin-main h1{font-size:32px;margin:0 0 24px}.admin-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.admin-head h1{margin-bottom:5px}.admin-head p{margin:0;color:var(--muted)}
.admin-btn{display:inline-block;background:var(--blue);color:#fff;border:0;border-radius:8px;padding:11px 16px;font-weight:700;cursor:pointer}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px}.stat span{display:block;color:var(--muted);margin-bottom:10px}.stat strong{font-size:36px}
.table-card,.form-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}.admin-table{width:100%;border-collapse:collapse}.admin-table th,.admin-table td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}.admin-table th{background:#f9fafb;color:#475467;font-size:13px}.thumb{width:54px;height:44px;border-radius:7px;object-fit:cover}.tag{background:#eaf4ff;color:var(--blue);font-size:11px;padding:3px 6px;border-radius:999px;margin-left:6px}.row-actions{display:flex;gap:12px}.row-actions form{margin:0}.link-danger,.link-btn{background:none;border:0;padding:0;color:#b42318;cursor:pointer}.link-btn{color:var(--blue)}
.form-card{padding:24px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:24px}.form-grid .full,.check-row{grid-column:1/-1}label{display:block;font-weight:700;margin-bottom:7px}input,textarea,select{width:100%;padding:10px 12px;border:1px solid #d0d5dd;border-radius:8px;font:inherit;background:#fff}textarea{resize:vertical}.check-row{display:flex;gap:30px}.check-row label{display:flex;align-items:center;gap:8px}.check-row input{width:auto}.edit-preview{display:block;width:180px;margin-top:12px;border-radius:8px;border:1px solid var(--line)}
.two-col{display:grid;grid-template-columns:360px 1fr;gap:24px}.two-col .form-card input{margin-bottom:15px}
.alert{padding:12px 14px;border-radius:8px;margin-bottom:18px}.alert.success{background:#ecfdf3;color:#027a48}.alert.error{background:#fef3f2;color:#b42318}
.login-body{min-height:100vh;display:grid;place-items:center;background:linear-gradient(145deg,#0d1b2a,#113b61);padding:20px}.login-card{width:min(430px,100%);background:#fff;border-radius:16px;padding:34px;box-shadow:0 24px 80px rgba(0,0,0,.25)}.login-card h1{margin:12px 0 6px}.login-card p{color:var(--muted);margin-top:0}.login-card input{margin-bottom:15px}.login-card .admin-btn{width:100%;margin-top:6px}.admin-brand{font-weight:900;letter-spacing:2px;color:var(--blue)}.back-link{display:block;text-align:center;margin-top:18px}
@media(max-width:900px){.admin-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.sidebar nav{grid-template-columns:repeat(3,1fr)}.sidebar form{margin-top:16px}.stats-grid{grid-template-columns:1fr 1fr}.two-col{grid-template-columns:1fr}.admin-main{padding:22px}.form-grid{grid-template-columns:1fr}.form-grid .full,.check-row{grid-column:auto}.table-card{overflow-x:auto}}

.settings-form{display:grid;gap:22px;padding-bottom:90px}
.settings-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px}
.settings-title{display:grid;grid-template-columns:44px 1fr;gap:14px;margin-bottom:25px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.settings-title>span{width:38px;height:38px;display:grid;place-items:center;background:#111;color:#f6c400;border-radius:8px;font-weight:900;font-size:12px}
.settings-title h2{margin:0 0 5px;font-size:20px}.settings-title p{margin:0;color:var(--muted);font-size:13px}
.setting-preview{display:block;margin-top:12px;border:1px solid var(--line);border-radius:8px;background:#f8f8f8}
.logo-preview{max-width:220px;max-height:90px;object-fit:contain;padding:8px}
.banner-preview-wrap{background:#111;border-radius:10px;overflow:hidden;max-width:900px}
.banner-preview{width:100%;height:auto;display:block}
.vertical{flex-direction:column;gap:14px}
.save-bar{position:sticky;bottom:16px;z-index:5;background:#101010;color:#fff;border-radius:12px;padding:16px 18px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 16px 45px rgba(0,0,0,.22)}
.save-bar strong{display:block}.save-bar span{display:block;color:#aaa;font-size:12px;margin-top:4px}.admin-btn.big{background:#f6c400;color:#111;padding:13px 22px}
@media(max-width:700px){.save-bar{align-items:flex-start;gap:15px;flex-direction:column}.save-bar .admin-btn{width:100%}}

.field-help{font-size:12px;color:#667085;margin-top:6px;line-height:1.5}

.banner-admin-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.banner-admin-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.banner-admin-card>img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#111}
.banner-admin-body{padding:16px}.banner-admin-meta{display:flex;align-items:start;justify-content:space-between;gap:10px}
.banner-admin-meta span{font-size:12px;color:var(--muted)}.banner-admin-body p{color:var(--muted)}
.banner-edit-preview{width:min(800px,100%);margin-top:12px;border-radius:8px;display:block}
.media-admin-columns{display:grid;grid-template-columns:320px 1fr;gap:22px}
.media-small-form{margin-bottom:18px}.media-small-form h2{font-size:18px;margin-top:0}
.media-small-form input,.media-small-form select{margin-bottom:12px}
.check-label{display:flex;align-items:center;gap:8px}.check-label input{width:auto;margin:0}
.media-filter{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.media-filter a{padding:8px 11px;background:#fff;border:1px solid var(--line);border-radius:6px;font-size:12px}
.media-library-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.media-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.media-card>img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#eee}
.media-card>div{padding:11px;display:grid;gap:5px}
.media-card span{font-size:11px;color:var(--muted)}
.media-card code{font-size:9px;word-break:break-all;color:#777}
@media(max-width:1000px){
 .banner-admin-grid{grid-template-columns:1fr}
 .media-admin-columns{grid-template-columns:1fr}
 .media-library-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){.media-library-grid{grid-template-columns:1fr}}

.project-admin-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.project-admin-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:12px}
.project-admin-logo{height:150px;display:flex;align-items:center;justify-content:center;padding:18px;background:#f7f7f5;border-bottom:1px solid var(--line)}
.project-admin-logo img{max-width:100%;max-height:100%;object-fit:contain}
.project-admin-placeholder{text-align:center;font-weight:800;color:#555}
.project-admin-body{display:grid;gap:7px;padding:14px}
.project-admin-body span,.project-admin-body small{color:var(--muted)}
.project-logo-preview{display:flex;align-items:center;justify-content:center;width:260px;max-width:100%;height:140px;margin-top:12px;padding:12px;border:1px solid var(--line);border-radius:8px;background:#f7f7f5}
.project-logo-preview img{max-width:100%;max-height:100%;object-fit:contain}
@media(max-width:900px){.project-admin-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.project-admin-grid{grid-template-columns:1fr}}

.category-hero-preview,.category-og-preview{
  display:block;max-width:640px;width:100%;max-height:320px;object-fit:contain;
  margin-top:12px;padding:8px;background:#f5f5f3;border:1px solid var(--line);border-radius:8px;
}
.category-admin-gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:20px}
.category-admin-image{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:8px}
.category-admin-image img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.category-admin-image form{padding:8px}
.seo-settings-card{border-top:4px solid #f3bf22}
@media(max-width:900px){.category-admin-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}