Add admin order management with full status workflow.

internal/handlers/static/css/admin.css

@@ -188,6 +188,55 @@
     color: #9ca3af;
 }
 
+.admin-alert--ok {
+    background: #d1fae5;
+    color: #065f46;
+    border: 1px solid #a7f3d0;
+}
+
+.admin-table__muted {
+    font-size: 0.8rem;
+    color: #9ca3af;
+}
+
+.admin-table--orders td {
+    vertical-align: top;
+}
+
+.admin-order-details td {
+    background: #f9fafb;
+    font-size: 0.85rem;
+    color: #6b7280;
+    padding-top: 0 !important;
+}
+
+.admin-order-items {
+    margin: 8px 0 0;
+    padding-left: 18px;
+}
+
+.admin-status-form {
+    display: flex;
+    gap: 8px;
+    align-items: center;
+}
+
+.admin-form__input--sm {
+    padding: 8px 10px;
+    font-size: 0.85rem;
+    min-width: 140px;
+}
+
+.admin-status-legend {
+    margin-top: 32px;
+}
+
+.admin-status-legend__grid {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 8px;
+}
+
 .admin-hint code {
     background: #e5e7eb;
     padding: 2px 6px;

internal/handlers/static/css/shop.css

@@ -391,12 +391,16 @@
     font-weight: 600;
 }
 
-.status--new { background: #dbeafe; color: #1d4ed8; }
-.status--confirmed { background: #e0e7ff; color: #4338ca; }
+.status--pending { background: #fef3c7; color: #b45309; }
+.status--unpaid { background: #fee2e2; color: #b91c1c; }
+.status--paid { background: #dbeafe; color: #1d4ed8; }
+.status--new { background: #fef3c7; color: #b45309; }
+.status--confirmed { background: #dbeafe; color: #1d4ed8; }
 .status--processing { background: #ede9fe; color: #6d28d9; }
 .status--shipped { background: #ffedd5; color: #c2410c; }
 .status--delivered { background: #d1fae5; color: #065f46; }
 .status--cancelled { background: #f3f4f6; color: #6b7280; }
+.status--refunded { background: #fce7f3; color: #be185d; }
 
 .order-timeline {
     display: flex;