:root{--bg:#f4f7fb;--panel:#fff;--text:#172033;--muted:#718096;--line:#e5eaf1;--primary:#4f46e5;--primary-dark:#3730a3;--success:#059669;--danger:#dc2626;--warning:#d97706;--sidebar:#111827;--radius:14px;--shadow:0 8px 30px rgba(25,35,58,.07)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);font-size:14px}a{color:var(--primary);text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:230px;background:var(--sidebar);color:#fff;padding:22px 14px;z-index:20;overflow:auto}.brand{display:flex;align-items:center;gap:12px;color:#fff;padding:0 10px 24px}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,#7c3aed,#4f46e5);color:#fff;font-size:21px;font-weight:800;box-shadow:0 8px 20px rgba(79,70,229,.35)}.brand strong{display:block;font-size:17px}.brand small{display:block;color:#94a3b8;margin-top:3px;font-size:11px}.nav-item{display:flex;align-items:center;gap:11px;color:#aeb8c8;padding:11px 12px;border-radius:10px;margin:3px 0;transition:.18s}.nav-item:hover,.nav-item.active{background:#263142;color:#fff}.nav-item.active{box-shadow:inset 3px 0 var(--primary)}.nav-icon{display:grid;place-items:center;width:25px;height:25px;border-radius:7px;background:rgba(255,255,255,.07);font-size:12px}.main{margin-left:230px;width:calc(100% - 230px);min-height:100vh;display:flex;flex-direction:column}.topbar{height:78px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 30px;position:sticky;top:0;z-index:10}.topbar h1{font-size:20px;margin:0}.topbar p{font-size:12px;color:var(--muted);margin:4px 0 0}.admin-menu{display:flex;align-items:center;gap:14px}.admin-menu span{font-weight:600}.menu-button{display:none;background:none;border:0;font-size:24px}.content{padding:26px 30px;flex:1;max-width:1600px;width:100%;margin:auto}.footer{text-align:center;color:#94a3b8;padding:15px 20px 25px;font-size:12px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:20px}.stat-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);position:relative;overflow:hidden}.stat-card:after{content:"";position:absolute;width:85px;height:85px;border-radius:50%;background:#eef2ff;right:-24px;top:-28px}.stat-card.accent{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border:0}.stat-card.accent:after{background:rgba(255,255,255,.1)}.stat-card span{color:var(--muted);font-size:13px}.stat-card.accent span,.stat-card.accent small{color:#ddd6fe}.stat-card strong{display:block;font-size:30px;margin:10px 0 8px;letter-spacing:-1px}.stat-card small{color:#94a3b8}.panel-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;margin-bottom:20px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:20px}.panel h2,.panel h3{margin-top:0}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.panel-head h2{font-size:17px;margin:0}.panel-head p{color:var(--muted);margin:5px 0 0;font-size:12px}.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.metric-row div{background:#f8fafc;padding:16px;border-radius:11px}.metric-row span{display:block;color:var(--muted);font-size:12px}.metric-row strong{font-size:22px;display:block;margin-top:8px}.mini-list>div{display:grid;grid-template-columns:12px 1fr auto;align-items:center;gap:9px;padding:11px 0;border-bottom:1px solid var(--line)}.mini-list>div:last-child{border:0}.mini-list small{color:var(--muted)}.status-dot{width:8px;height:8px;border-radius:50%;background:#cbd5e1}.status-dot.on{background:#10b981;box-shadow:0 0 0 4px #d1fae5}.table-wrap{overflow-x:auto;margin:0 -3px}table{width:100%;border-collapse:collapse;white-space:nowrap}th{text-align:left;color:#64748b;font-size:12px;font-weight:600;background:#f8fafc;padding:12px 13px;border-bottom:1px solid var(--line)}td{padding:13px;border-bottom:1px solid #eef2f6;vertical-align:middle}tbody tr:hover{background:#fbfcff}.block{display:block;color:var(--muted);margin-top:4px;font-weight:400}.mono{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px}.empty-cell,.empty-state{text-align:center;color:var(--muted);padding:34px}.badge{display:inline-flex;padding:4px 8px;border-radius:999px;background:#eef2ff;color:#4338ca;font-size:11px}.badge-success{background:#d1fae5;color:#047857}.badge-muted{background:#f1f5f9;color:#64748b}.text-success{color:var(--success)!important}.text-danger{color:var(--danger)!important}.alert{padding:12px 15px;border-radius:10px;margin-bottom:16px;border:1px solid}.alert-success{background:#ecfdf5;color:#047857;border-color:#a7f3d0}.alert-danger{background:#fef2f2;color:#b91c1c;border-color:#fecaca}.alert-warning{background:#fffbeb;color:#b45309;border-color:#fde68a}.alert-info{background:#eff6ff;color:#1d4ed8;border-color:#bfdbfe}.toolbar{display:flex;gap:10px;margin-bottom:16px;align-items:center;flex-wrap:wrap}.toolbar input{min-width:260px}.toolbar input,.toolbar select,label input,label select,label textarea{border:1px solid #d9e0ea;border-radius:9px;padding:10px 12px;background:#fff;outline:none;transition:.15s}.toolbar input:focus,.toolbar select:focus,label input:focus,label select:focus,label textarea:focus{border-color:#818cf8;box-shadow:0 0 0 3px #e0e7ff}.button{display:inline-flex;align-items:center;justify-content:center;border:1px solid #d6dce5;border-radius:9px;background:#fff;color:#334155;padding:9px 15px;cursor:pointer}.button-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.button-primary:hover{background:var(--primary-dark)}.button-ghost{background:transparent}.button-block{display:flex;width:100%;padding:11px}.link-button{background:none;border:0;color:var(--primary);padding:2px;cursor:pointer}.inline-form{display:inline-flex;align-items:center;gap:5px}.compact-select{padding:5px;border:1px solid var(--line);border-radius:6px}.pagination{display:flex;justify-content:flex-end;align-items:center;gap:15px;padding-top:18px}.pagination a{border:1px solid var(--line);padding:7px 12px;border-radius:7px}.split-layout{display:grid;grid-template-columns:330px 1fr;gap:20px;align-items:start}.form-panel{position:sticky;top:98px}.form-panel form,.dialog-form{display:grid;gap:13px}label{display:grid;gap:7px;color:#475569;font-weight:600;font-size:13px}label textarea{min-height:90px;resize:vertical}.form-details summary{cursor:pointer;font-weight:700;font-size:16px}.form-details[open] summary{margin-bottom:20px}.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.form-actions{display:flex;gap:8px;align-items:flex-end}.auth-page{display:grid;place-items:center;min-height:100vh;padding:20px;background:radial-gradient(circle at 20% 10%,#e0e7ff,transparent 35%),radial-gradient(circle at 80% 80%,#ede9fe,transparent 35%),#f8fafc}.auth-card{width:min(430px,100%);background:#fff;padding:34px;border-radius:18px;box-shadow:0 24px 60px rgba(51,65,85,.16);border:1px solid #eef2f7}.auth-card form{display:grid;gap:16px}.auth-brand{display:flex;align-items:center;gap:14px;margin-bottom:26px}.auth-brand h1{margin:0;font-size:22px}.auth-brand p{margin:5px 0 0;color:var(--muted)}.auth-note{text-align:center;color:#94a3b8;font-size:12px;margin:20px 0 0}dialog{border:0;border-radius:14px;padding:0;box-shadow:0 30px 90px rgba(15,23,42,.3);width:min(470px,calc(100% - 30px))}dialog::backdrop{background:rgba(15,23,42,.55)}.dialog-form{padding:24px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px}
@media(max-width:1100px){.stat-grid{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:repeat(2,1fr)}.split-layout{grid-template-columns:1fr}.form-panel{position:static}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:translateX(0)}.main{margin-left:0;width:100%}.topbar{padding:0 16px}.menu-button{display:block}.admin-menu span{display:none}.content{padding:18px 14px}.stat-grid,.panel-grid,.metric-row,.form-grid{grid-template-columns:1fr}.stat-grid{gap:12px}.toolbar input{min-width:100%;width:100%}.panel{padding:15px}.split-layout{gap:0}}
.form-grid{align-items:start}.form-grid>label{align-self:start}.form-grid>label>input,.form-grid>label>select{height:40px}.product-cover-field{display:grid;gap:10px;align-self:start}.cover-url-row{display:flex;gap:8px;align-items:center}.cover-url-row input{flex:1;min-width:0;height:40px}.cover-upload-button{white-space:nowrap}.cover-file-input{display:none}.cover-preview{width:122px;height:122px;border:1px dashed #cbd5e1;border-radius:12px;background:#f8fafc;display:grid;place-items:center;overflow:hidden;color:#94a3b8;font-weight:400}.cover-preview img{width:100%;height:100%;object-fit:cover;display:block}.cover-preview img[hidden],.cover-preview span[hidden]{display:none}.cover-upload-status{min-height:18px;color:var(--muted);font-size:12px;font-weight:400}.cover-upload-status.is-error{color:var(--danger)}.cover-upload-status.is-success{color:var(--success)}
@media(max-width:760px){.cover-url-row{align-items:stretch;flex-direction:column}.cover-upload-button{width:100%}}
.shipping-summary{white-space:normal;min-width:210px;max-width:300px}.address-line{line-height:1.5}.order-actions{min-width:190px;white-space:normal}.order-actions>.link-button,.order-actions>.inline-form{margin:2px 7px 2px 0}.order-status{font-weight:700}.order-status--unshipped{background:#fff7ed;color:#c2410c}.order-status--shipped{background:#eef2ff;color:#4338ca}.order-status--completed{background:#d1fae5;color:#047857}.order-status--refunded{background:#f1f5f9;color:#64748b}.order-detail-dialog{width:min(760px,calc(100% - 30px))}.order-detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden}.order-detail-grid>div{display:grid;gap:6px;padding:13px 15px;background:#fff;min-width:0}.order-detail-grid span{color:var(--muted);font-size:12px}.order-detail-grid strong{font-weight:600;white-space:normal;word-break:break-word}.order-detail-wide{grid-column:1/-1}.dialog-note{margin:0;color:var(--muted)}
@media(max-width:760px){.order-detail-grid{grid-template-columns:1fr}.order-detail-wide{grid-column:auto}}
.order-detail-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.order-detail-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.fulfillment-readonly{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden}.fulfillment-readonly>div{display:grid;gap:5px;padding:11px 13px;background:#f8fafc;min-width:0}.fulfillment-readonly span{color:var(--muted);font-size:12px}.fulfillment-readonly strong{font-weight:600;white-space:normal;word-break:break-word}.fulfillment-readonly .fulfillment-address{grid-column:1/-1}
@media(max-width:760px){.order-detail-toolbar{align-items:flex-start;flex-direction:column}.fulfillment-readonly{grid-template-columns:1fr}.fulfillment-readonly .fulfillment-address{grid-column:auto}}