:root{--ink:#202632;--muted:#747c88;--line:#e3e6eb;--brand:#153b64;--gold:#c6a96b}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Inter,Arial,Helvetica,sans-serif;background:#f2f3f6;color:var(--ink)}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
.hidden{display:none!important}
.topbar{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 20px;gap:14px;position:sticky;top:0;z-index:20}
.brand{font:500 22px Georgia,serif}
.actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.btn{border:0;border-radius:10px;background:#202630;color:#fff;padding:10px 14px;font-weight:700}
.btn.alt{background:#eceef2;color:#222832}
.btn.gold{background:var(--gold);color:#1c2633}
.btn.small{padding:7px 10px;font-size:12px}
.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 15% 15%,#e4edf7,transparent 32%),radial-gradient(circle at 85% 80%,#efe3cc,transparent 32%),#f5f4f1}
.card{background:#fff;border:1px solid var(--line);border-radius:18px}
.auth-card{width:min(460px,100%);padding:30px;box-shadow:0 24px 80px rgba(20,30,45,.12)}
.auth-card h1{font:500 38px/1 Georgia,serif;margin:0 0 8px}
.muted{color:var(--muted);line-height:1.5}
.field{margin:13px 0}
.field label{display:block;font-size:12px;font-weight:800;margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;border:1px solid #dfe2e7;border-radius:9px;background:#fff;padding:11px 12px;outline:none}
.field textarea{min-height:105px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{border-color:#8299b5}
.dashboard-wrap{width:min(1240px,calc(100% - 30px));margin:25px auto}
.hero-card{padding:24px;margin-bottom:18px}
.hero-card h1{font:500 34px Georgia,serif;margin:0 0 7px}
.template-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.template-card{overflow:hidden}
.thumb{height:180px;padding:20px;display:flex;align-items:end;font:500 28px Georgia,serif}
.thumb-blue{background:linear-gradient(145deg,#0c2948,#214e78);color:#e6cf9f}
.thumb-paper{background:#eee4d2;color:#1d1a17;border-bottom:4px double #1d1a17}
.template-meta{padding:15px}
.template-meta h3{font:500 22px Georgia,serif;margin:0 0 6px}
.template-meta p{font-size:13px;color:var(--muted);min-height:40px}
.editor-layout{display:grid;grid-template-columns:minmax(330px,430px) minmax(0,1fr);height:calc(100vh - 68px)}
.form-pane{background:#fff;border-right:1px solid var(--line);overflow:auto;padding:18px}
.preview-pane{overflow:auto;padding:18px;background:#e7e9ed}
.preview-toolbar{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:10px}
.preview-frame{width:min(680px,100%);margin:0 auto;background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 24px 80px rgba(10,20,35,.15)}
.preview-frame iframe{width:100%;height:calc(100vh - 118px);min-height:700px;border:0;display:block;background:#fff}
.group{border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:18px}
.group h2{font:500 23px Georgia,serif;margin:0 0 12px}
.group-note{font-size:12px;color:var(--muted);margin-top:-5px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.toggle-row{display:flex;align-items:center;gap:8px;padding:8px 0}
.toggle-row input{width:auto}
.color-row{display:grid;grid-template-columns:55px 1fr;gap:8px}
.color-row input[type=color]{height:42px;padding:3px}
.upload-box{border:1px dashed #bfc6cf;border-radius:10px;padding:10px;background:#fafbfc}
.upload-preview{width:100%;height:120px;object-fit:cover;border-radius:8px;margin-top:8px;background:#e7e9ed}
.list-wrap{display:grid;gap:9px}
.list-item{border:1px solid var(--line);border-radius:10px;padding:10px;background:#fafbfc}
.list-item-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.list-item-head strong{font-size:12px}
.image-list{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:8px}
.image-list .img-card{position:relative}
.image-list img{width:100%;height:82px;object-fit:cover;border-radius:7px}
.image-list button{position:absolute;right:4px;top:4px;border:0;background:rgba(0,0,0,.75);color:#fff;border-radius:999px;width:23px;height:23px}
.status-box{font-size:12px;background:#f4f6f9;border:1px solid var(--line);padding:10px;border-radius:9px;line-height:1.5;word-break:break-all}
.toast{position:fixed;right:18px;bottom:18px;background:#222;color:#fff;padding:12px 15px;border-radius:9px;opacity:0;transform:translateY(20px);pointer-events:none;transition:.2s;z-index:100}
.toast.show{opacity:1;transform:none}.toast.err{background:#9b2f2f}
.admin-wrap{width:min(1000px,calc(100% - 30px));margin:25px auto}
.buyer-row{padding:14px;display:grid;grid-template-columns:1.2fr 2fr auto;gap:12px;align-items:center;border-bottom:1px solid var(--line)}
.checks{display:flex;gap:12px;flex-wrap:wrap;font-size:13px}
.public-page{margin:0;background:#111}
.public-page iframe{display:block;width:100%;height:100vh;border:0;background:#fff}
@media(max-width:900px){
 .template-grid{grid-template-columns:1fr 1fr}
 .editor-layout{grid-template-columns:1fr;height:auto}
 .form-pane{border-right:0;border-bottom:1px solid var(--line);max-height:none}
 .preview-frame iframe{height:80vh}
}
@media(max-width:580px){
 .template-grid{grid-template-columns:1fr}
 .two{grid-template-columns:1fr}
 .buyer-row{grid-template-columns:1fr}
}

/* V2 reliability / diagnostics */
.version-note{font-size:11px;color:var(--muted);text-align:center;margin-top:14px}
.fatal-error{position:relative;z-index:9999;margin:10px;background:#fff0f0;border:1px solid #e5b8b8;color:#8c2525;padding:12px 14px;border-radius:10px;font:13px/1.45 Arial,sans-serif}
.fatal-error strong{display:block;margin-bottom:3px}
.notice{border:1px solid var(--line);background:#f7f8fa;border-radius:10px;padding:12px;font-size:13px;line-height:1.5}
.notice.good{background:#eef9f1;border-color:#bcdcc5;color:#245c35}
.notice.warn{background:#fff7e8;border-color:#ead19c;color:#6d4c13}
.notice.bad{background:#fff0f0;border-color:#e5b8b8;color:#8c2525}
.admin-denied{padding:28px;max-width:720px;margin:30px auto}
.admin-denied code{display:block;white-space:pre-wrap;background:#f5f6f8;padding:12px;border-radius:8px;margin-top:10px;font-size:12px}
.loading-card{padding:30px;text-align:center;color:var(--muted)}
.auth-links{display:flex;justify-content:space-between;gap:12px;align-items:center;margin:-2px 0 12px;font-size:12px}
.auth-links a{color:#425f80;text-decoration:none}.auth-links a:hover{text-decoration:underline}
.confirm-box{margin-top:14px}
.system-grid{display:grid;grid-template-columns:220px 1fr;gap:8px 16px;font-size:13px}
.system-grid>div{padding:8px 0;border-bottom:1px solid var(--line)}
.system-key{font-weight:700}
@media(max-width:600px){.system-grid{grid-template-columns:1fr}.system-key{padding-bottom:0!important;border-bottom:0!important}}