.keruen-mail{display:grid;grid-template-columns:200px minmax(0,1fr);height:100%;min-height:420px;background:var(--panel,#fff);color:var(--ink,#18354b);font:14px/1.5 system-ui,sans-serif;overflow:hidden}.keruen-mail *{box-sizing:border-box}.keruen-mail button,.keruen-mail input,.keruen-mail select,.keruen-mail textarea{font:inherit;color:inherit;border:1px solid var(--line,#dbe3ea);border-radius:8px;background:var(--panel,#fff);padding:9px 12px;width:auto}.keruen-mail button{cursor:pointer}.keruen-mail button:disabled{opacity:.5;cursor:wait}.keruen-mail .mail-primary{background:var(--primary,#2585bb);color:#fff;border-color:transparent}.keruen-mail button:focus-visible,.keruen-mail input:focus-visible,.keruen-mail textarea:focus-visible{outline:2px solid var(--primary,#2585bb);outline-offset:2px}.mail-folders{padding:20px 12px;background:var(--soft,#f4f7fa);border-inline-end:1px solid var(--line,#dbe3ea);overflow:auto}.mail-folders h2{font-size:18px;margin:0 4px 5px}.mail-address{overflow-wrap:anywhere;font-size:12px;color:var(--muted,#6b7e8d);margin:0 4px 20px}.mail-folders>button{width:100%;margin-bottom:18px}.mail-folders nav{display:grid;gap:4px;margin-bottom:20px}.mail-folders nav button{display:flex;justify-content:space-between;text-align:start;border:0;background:transparent}.mail-folders nav button.active{background:var(--light-blue,#e5f2fc);color:var(--primary,#2585bb);font-weight:700}.mail-main{display:flex;flex-direction:column;min-width:0;min-height:0}.mail-toolbar{padding:16px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line,#dbe3ea);flex-wrap:wrap}.mail-toolbar h2{font-size:19px;margin:0}.mail-toolbar form{display:flex;flex:1;gap:6px;min-width:180px}.mail-toolbar form input{min-width:0;width:100%}.mail-content{display:grid;grid-template-columns:minmax(240px,34%) minmax(0,1fr);flex:1;min-height:0}.mail-list{overflow:auto;border-inline-end:1px solid var(--line,#dbe3ea)}.mail-row{display:flex;gap:3px;padding:12px 8px;border-bottom:1px solid var(--line,#dbe3ea);min-width:0}.mail-row.unread{background:var(--soft,#f4f7fa)}.mail-row.selected{box-shadow:inset 3px 0 var(--primary,#2585bb)}.mail-row-top{display:flex;gap:8px;justify-content:space-between}.mail-row-top strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}.mail-row.unread strong,.mail-row.unread .mail-open>span:last-child{font-weight:750}.mail-row-top time{font-size:11px;color:var(--muted,#6b7e8d);white-space:nowrap}.keruen-mail .mail-open{min-width:0;flex:1;display:grid;gap:5px;border:0;background:transparent;padding:0 5px;text-align:start}.mail-open>span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.keruen-mail .mail-star{border:0;background:transparent;font-size:21px;padding:0 5px;align-self:flex-start;color:var(--primary,#2585bb)}.mail-reader{overflow:auto;padding:24px;min-width:0}.mail-reader h2{font-size:22px;line-height:1.3;overflow-wrap:anywhere}.mail-reader-toolbar{display:flex;gap:6px;flex-wrap:wrap}.mail-reader-toolbar button{font-size:12px}.mail-reader dl{display:grid;grid-template-columns:auto minmax(0,1fr);gap:6px 12px;font-size:13px;color:var(--muted,#6b7e8d)}.mail-reader dd{margin:0;overflow-wrap:anywhere}.mail-body{white-space:pre-wrap;overflow-wrap:anywhere;padding-top:20px;border-top:1px solid var(--line,#dbe3ea);line-height:1.7}.mail-attachments{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.mail-attachments button{max-width:100%;overflow-wrap:anywhere}.mail-compose{display:grid;gap:14px}.mail-compose h2{margin:0 0 8px}.mail-compose label,.mail-admin label{display:grid;gap:5px;font-size:13px}.mail-compose input,.mail-compose textarea,.mail-admin input,.mail-admin select{min-width:0;width:100%}.mail-compose textarea{resize:vertical;min-height:180px}.mail-compose-actions{display:flex;flex-wrap:wrap;gap:8px}.mail-file{display:flex;gap:8px;align-items:center;overflow-wrap:anywhere;margin-bottom:6px}.mail-file button{font-size:12px}.mail-empty{padding:40px 20px;color:var(--muted,#6b7e8d);text-align:center}.mail-main>[data-mail-notice]{margin:0;padding:12px 18px;background:var(--soft,#eef6fd);overflow-wrap:anywhere}.mail-admin form{display:grid;gap:14px;max-width:520px}.mail-address-input{display:flex;align-items:center;gap:8px;min-width:0}.mail-address-input input{min-width:0;flex:1}.mail-admin code{display:block;user-select:all;overflow-wrap:anywhere;padding:12px;background:var(--soft,#f4f7fa)}.mail-managed-list p{border-bottom:1px solid var(--line,#dbe3ea);padding:12px 0;overflow-wrap:anywhere}.mail-list>[data-more]{margin:16px}.mail-list>.mail-row:has(>small){display:grid;overflow-wrap:anywhere}.mail-reader [data-reader-back]{display:none}#keruenMailboxPage{padding:0;border:1px solid var(--line,#dbe3ea);color:var(--ink);background:var(--panel)}#keruenMailboxPage>.order-dialog-toolbar{padding:10px 16px;margin:0;border-bottom:1px solid var(--line)}#keruenMailboxHost{height:calc(100% - 65px);min-height:0;overflow:hidden}
@media(max-width:1050px){.mail-content{display:block}.mail-reader{display:none;height:100%}.mail-list{height:100%}.mail-reading .mail-list{display:none}.mail-reading .mail-reader{display:block}.mail-reader [data-reader-back]{display:inline-block}}
@media(max-width:620px){.keruen-mail{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr);min-height:0}.mail-folders{padding:8px 10px;border-inline-end:0;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;flex-wrap:wrap;overflow:visible}.mail-folders h2{display:none}.mail-address{margin:0;font-size:11px;flex:1}.mail-folders>button{width:auto;margin:0;font-size:12px;padding:7px}.mail-folders nav{display:flex;overflow:auto;gap:3px;order:3;width:100%;margin:0;white-space:nowrap}.mail-folders nav button{padding:7px 10px;font-size:12px;flex-shrink:0}.mail-toolbar{padding:10px;gap:8px}.mail-toolbar h2{display:none}.mail-toolbar form{min-width:0}.mail-toolbar form button{display:none}.mail-toolbar>button{padding:9px;font-size:12px}.mail-reader{padding:14px}.mail-reader h2{font-size:20px}.mail-reader-toolbar button{padding:7px 9px;font-size:11px}.mail-compose-actions button{flex:1}.mail-reading .mail-toolbar{display:none}.mail-folders>button[data-manage]{font-size:11px}.mail-compose input,.mail-compose textarea{font-size:16px}.mail-address-input>span{font-size:12px}.mail-address-input input{width:100px}}
/* Keep intrinsic folder names and long messages inside narrow viewports. */
.keruen-mail,.mail-folders,.mail-folders nav{min-width:0}.mail-folders nav{max-width:100%}
@media(max-width:620px){.keruen-mail{grid-template-columns:minmax(0,1fr)}.mail-content,.mail-reader{max-width:100%;min-width:0}.mail-reader-toolbar{max-width:100%}}

.mail-folders nav button{gap:8px}