:root{color-scheme:light;--bg:#f4f4f5;--card:#fff;--fg:#09090b;--muted:#f4f4f5;--subtle:#fafafa;--muted-fg:#71717a;--soft-fg:#3f3f46;--border:#e4e4e7;--border-strong:#d4d4d8;--ring:#a1a1aa;--focus-glow:rgba(161,161,170,.3);--primary:#18181b;--primary-hover:#27272a;--primary-fg:#fafafa;--primary-border:#3f3f46;--open-fg:#166534;--open-bg:#dcfce7;--success-fg:#166534;--success-bg:#f0fdf4;--success-border:#bbf7d0;--warn-fg:#92400e;--warn-bg:#fffbeb;--warn-border:#fde68a;--danger-fg:#991b1b;--danger-bg:#fef2f2;--danger-border:#fecaca;--error-fg:#dc2626;--shadow-sm:0 1px 2px rgba(0,0,0,.04);--shadow:0 1px 3px rgba(0,0,0,.05);--shadow-lg:0 10px 30px rgba(0,0,0,.12);--radius:8px}
:root[data-theme=dark]{color-scheme:dark;--bg:#000;--card:#09090b;--fg:#fafafa;--muted:#27272a;--subtle:#111113;--muted-fg:#a1a1aa;--soft-fg:#d4d4d8;--border:#27272a;--border-strong:#3f3f46;--ring:#71717a;--focus-glow:rgba(113,113,122,.35);--primary:#fafafa;--primary-hover:#e4e4e7;--primary-fg:#18181b;--primary-border:#d4d4d8;--open-fg:#86efac;--open-bg:#052e16;--success-fg:#86efac;--success-bg:#052e16;--success-border:#14532d;--warn-fg:#fcd34d;--warn-bg:#271a03;--warn-border:#78350f;--danger-fg:#fca5a5;--danger-bg:#2a0909;--danger-border:#7f1d1d;--error-fg:#f87171;--shadow-sm:0 1px 2px rgba(0,0,0,.4);--shadow:0 1px 3px rgba(0,0,0,.5);--shadow-lg:0 10px 30px rgba(0,0,0,.6)}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg:#000;--card:#09090b;--fg:#fafafa;--muted:#27272a;--subtle:#111113;--muted-fg:#a1a1aa;--soft-fg:#d4d4d8;--border:#27272a;--border-strong:#3f3f46;--ring:#71717a;--focus-glow:rgba(113,113,122,.35);--primary:#fafafa;--primary-hover:#e4e4e7;--primary-fg:#18181b;--primary-border:#d4d4d8;--open-fg:#86efac;--open-bg:#052e16;--success-fg:#86efac;--success-bg:#052e16;--success-border:#14532d;--warn-fg:#fcd34d;--warn-bg:#271a03;--warn-border:#78350f;--danger-fg:#fca5a5;--danger-bg:#2a0909;--danger-border:#7f1d1d;--error-fg:#f87171;--shadow-sm:0 1px 2px rgba(0,0,0,.4);--shadow:0 1px 3px rgba(0,0,0,.5);--shadow-lg:0 10px 30px rgba(0,0,0,.6)}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:14px/1.5 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
p,h1,h2{margin:0}
button,input{font:inherit;color:inherit}
.icon{width:16px;height:16px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

.app{display:grid;height:calc(100vh - 32px);height:calc(100dvh - 32px);margin:16px;overflow:hidden;background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow)}
.app-home{grid-template-columns:240px minmax(0,1fr)}
.app-mailbox{grid-template-columns:240px 380px minmax(0,1fr)}
.app-admin{grid-template-columns:240px minmax(0,1fr)}

.sidebar{display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--border)}
.brand-row{display:flex;align-items:center;gap:8px;flex:none;height:56px;padding:0 10px 0 16px;border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:10px;flex:1;min-width:0;font-weight:600;letter-spacing:-.01em}
.logo{display:grid;place-items:center;width:28px;height:28px;border-radius:7px;color:var(--primary-fg);background:var(--primary)}
.logo .icon{width:15px;height:15px}
.theme-toggle{margin:0}
.theme-toggle .to-light{display:none}
:root[data-theme=dark] .theme-toggle .to-dark{display:none}
:root[data-theme=dark] .theme-toggle .to-light{display:inline-flex}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .theme-toggle .to-dark{display:none}:root:not([data-theme=light]) .theme-toggle .to-light{display:inline-flex}}
.nav{flex:1;min-height:0;overflow-y:auto;padding:8px}
.nav-label{padding:14px 8px 6px;font-size:12px;font-weight:500;color:var(--muted-fg)}
.nav-label:first-child{padding-top:6px}
.nav-empty{padding:2px 8px 6px;font-size:13px;color:var(--muted-fg)}
.nav-item{display:flex;align-items:center;gap:10px;height:36px;padding:0 8px;border-radius:var(--radius);font-weight:500}
.nav-item:hover{background:var(--muted)}
.nav-item.active{color:var(--primary-fg);background:var(--primary)}
.nav-item .name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.count{min-width:26px;padding:0 6px;border:1px solid var(--border);border-radius:6px;font-size:12px;line-height:20px;text-align:center;background:var(--card)}
.nav-item.active .count{border-color:var(--primary-border);color:var(--primary-fg);background:transparent}
.sidebar-foot{display:grid;gap:10px;flex:none;padding:12px;border-top:1px solid var(--border)}
.sidebar-foot form{margin:0}
.whoami{display:flex;align-items:center;gap:8px;min-width:0;font-size:13px;color:var(--muted-fg)}
.whoami span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.whoami b{font-weight:600;color:var(--fg)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:36px;padding:0 16px;border:1px solid transparent;border-radius:var(--radius);font-weight:500;white-space:nowrap;cursor:pointer;background:none;transition:background-color .15s}
.btn-primary{color:var(--primary-fg);background:var(--primary)}
.btn-primary:hover{background:var(--primary-hover)}
.btn-outline{border-color:var(--border);background:var(--card);box-shadow:var(--shadow-sm)}
.btn-outline:hover,.btn-ghost:hover{background:var(--muted)}
.btn-sm{height:32px;padding:0 12px;font-size:13px}
.btn-icon{width:36px;padding:0}
.btn-block{width:100%}
.btn-destructive{color:#fff;background:#dc2626}
.btn-destructive:hover{background:#b91c1c}
.link-button{padding:0;border:0;font-size:12px;color:var(--fg);text-decoration:underline;text-underline-offset:2px;cursor:pointer;background:none}
.btn:focus-visible,.nav-item:focus-visible,.mail:focus-visible,.segmented a:focus-visible,.brand:focus-visible{outline:2px solid var(--ring);outline-offset:2px}
.input{display:block;width:100%;height:36px;padding:0 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow-sm)}
.input::placeholder{color:var(--muted-fg)}
.input:focus{outline:none;border-color:var(--ring);box-shadow:0 0 0 3px var(--focus-glow)}
.badge{display:inline-flex;align-items:center;gap:4px;flex:none;height:22px;padding:0 8px;border:1px solid transparent;border-radius:6px;font-size:12px;font-weight:500;white-space:nowrap}
.badge .icon{width:12px;height:12px}
.badge-outline{border-color:var(--border)}
.badge-open{color:var(--open-fg);background:var(--open-bg)}
.badge-closed{color:var(--soft-fg);background:var(--muted)}
.badge-admin{color:var(--primary-fg);background:var(--primary)}

.list-pane{display:flex;flex-direction:column;min-width:0;min-height:0;border-right:1px solid var(--border)}
.pane-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex:none;padding:12px 16px 0}
.pane-heading{min-width:0}
.pane-title{font-size:20px;font-weight:700;line-height:32px;letter-spacing:-.02em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pane-sub{font-size:12px;color:var(--muted-fg)}
.pane-head .badge{margin-top:5px}
.search{position:relative;flex:none;margin:0;padding:12px 16px 8px}
.search .icon{position:absolute;top:22px;left:28px;color:var(--muted-fg);pointer-events:none}
.search .input{padding-left:36px}
.search-note{flex:none;padding:0 16px 4px;font-size:12px;color:var(--muted-fg)}
.search-note a,.list-foot a:not(.btn){color:var(--fg);text-decoration:underline;text-underline-offset:2px}
.messages{display:flex;flex-direction:column;gap:8px;flex:1;min-height:0;overflow-y:auto;padding:8px 16px 16px}
.mail-slot{flex:none}
.mail{display:flex;flex-direction:column;gap:6px;padding:12px;border:1px solid var(--border);border-radius:var(--radius);transition:background-color .15s}
.mail:hover{background:var(--muted)}
.mail.active{border-color:var(--border-strong);background:var(--muted)}
.mail-top{display:flex;align-items:baseline;gap:8px}
.mail-from{flex:1;min-width:0;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mail-time{flex:none;font-size:12px;color:var(--muted-fg)}
.mail.active .mail-time{color:var(--fg)}
.mail-subject{font-size:12px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mail-snippet{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;font-size:12px;color:var(--muted-fg);overflow-wrap:anywhere}
.mail-tags{display:flex;flex-wrap:wrap;gap:6px}
.list-foot{display:flex;flex-direction:column;align-items:center;gap:8px;padding-top:8px;font-size:12px;color:var(--muted-fg);text-align:center}
.pane-action{margin:2px 0 0}

.reader{display:flex;flex-direction:column;min-width:0;min-height:0}
.toolbar{display:flex;align-items:center;gap:8px;flex:none;height:56px;padding:0 12px;border-bottom:1px solid var(--border)}
.toolbar .spacer{flex:1}
.toolbar .back{display:none}
.toolbar-note{padding:0 4px;font-size:13px;color:var(--muted-fg)}
.segmented{display:inline-flex;padding:3px;border-radius:var(--radius);background:var(--muted)}
.segmented a{padding:3px 12px;border-radius:6px;font-size:13px;font-weight:500;color:var(--muted-fg)}
.segmented a.active{color:var(--fg);background:var(--card);box-shadow:var(--shadow-sm)}
.msg-head{display:flex;align-items:flex-start;gap:12px;flex:none;padding:16px;border-bottom:1px solid var(--border)}
.avatar{display:grid;place-items:center;flex:none;width:40px;height:40px;border-radius:50%;font-weight:600;color:var(--soft-fg);background:var(--muted)}
.msg-meta{display:grid;gap:2px;flex:1;min-width:0;font-size:12px}
.msg-from{font-size:14px;font-weight:600}
.msg-subject{font-size:13px;font-weight:500;overflow-wrap:anywhere}
.msg-line{color:var(--muted-fg);overflow-wrap:anywhere}
.msg-line span{color:var(--fg)}
.msg-date{display:grid;gap:2px;flex:none;font-size:12px;color:var(--muted-fg);text-align:right}
.infobar{display:flex;align-items:center;gap:8px;flex:none;margin:0;padding:8px 16px;border-bottom:1px solid var(--border);font-size:12px;color:var(--muted-fg);background:var(--subtle)}
.infobar.warn{color:var(--warn-fg);background:var(--warn-bg)}
.reader-body{display:flex;flex-direction:column;flex:1;min-height:0}
/* Email HTML is written for a white page, in either theme. */
iframe.mail-body{flex:1;width:100%;min-height:0;border:0;background:#fff}
pre.text-body{flex:1;margin:0;padding:16px;overflow:auto;white-space:pre-wrap;word-break:break-word;font:13px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.attachments{flex:none;max-height:35%;overflow-y:auto;padding:12px 16px;border-top:1px solid var(--border)}
.attachments h2{margin-bottom:8px;font-size:12px;font-weight:500;color:var(--muted-fg)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.chip{display:inline-flex;align-items:center;gap:8px;max-width:100%;padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius);font-size:12px}
.chip .name{font-weight:500;overflow-wrap:anywhere}
.chip .meta{color:var(--muted-fg);white-space:nowrap}
.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;flex:1;padding:32px 16px;text-align:center;color:var(--muted-fg)}
.empty .icon{width:28px;height:28px;stroke-width:1.5}

.main{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;min-height:0;overflow-y:auto;padding:32px 16px}
.card{width:100%;max-width:400px;padding:24px;border:1px solid var(--border);border-radius:12px;background:var(--card);box-shadow:var(--shadow)}
.card-title{font-size:18px;font-weight:600;letter-spacing:-.01em}
.card-desc{margin:4px 0 20px;color:var(--muted-fg)}
.form{display:grid;gap:8px;margin:0}
.label{font-size:13px;font-weight:500}
.form .btn{margin-top:8px}
.error{font-size:13px;color:var(--error-fg)}
.alert{display:flex;align-items:flex-start;gap:10px;width:100%;max-width:400px;padding:12px 14px;border:1px solid var(--warn-border);border-radius:var(--radius);color:var(--warn-fg);background:var(--warn-bg)}
.alert .icon{margin-top:2px}
.alert-success{border-color:var(--success-border);color:var(--success-fg);background:var(--success-bg)}
.alert-error{border-color:var(--danger-border);color:var(--danger-fg);background:var(--danger-bg)}
.alert p+p{margin-top:4px}
.hint{display:flex;align-items:center;gap:8px;color:var(--muted-fg)}
.center{display:grid;place-items:center;min-height:100vh;padding:16px}
.center .card{display:grid;justify-items:center;text-align:center}
.card-icon{display:grid;place-items:center;width:44px;height:44px;margin-bottom:12px;border-radius:50%;color:var(--muted-fg);background:var(--muted)}
.card-icon .icon{width:20px;height:20px}

.admin{min-width:0;min-height:0;overflow-y:auto;padding:28px 32px}
.admin-inner{display:grid;gap:20px;max-width:980px;margin:0 auto}
.admin .alert{max-width:none}
.page-head h1{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;letter-spacing:-.02em}
.page-head p{margin-top:4px;color:var(--muted-fg)}
.back-link{display:inline-flex;align-items:center;gap:6px;width:max-content;font-size:13px;color:var(--muted-fg)}
.back-link:hover{color:var(--fg)}
.panel{border:1px solid var(--border);border-radius:12px;background:var(--card)}
.panel>.panel-title{padding:16px 20px 0;font-size:15px;font-weight:600}
.panel>.panel-desc{padding:4px 20px 0;color:var(--muted-fg)}
.panel>form,.panel>details{margin:16px 20px 20px}
.panel-empty{padding:20px;color:var(--muted-fg)}
.panel-danger{border-color:var(--danger-border)}
.table{width:100%;border-collapse:collapse}
.table th{padding:10px 16px;border-bottom:1px solid var(--border);font-size:12px;font-weight:500;text-align:left;color:var(--muted-fg)}
.table td{padding:10px 16px;border-bottom:1px solid var(--border);vertical-align:middle}
.table tbody tr:last-child td{border-bottom:0}
.table tbody tr:hover{background:var(--subtle)}
.cell-main{font-weight:500}
.cell-main .badge{margin-left:8px}
.table-link:hover{text-decoration:underline;text-underline-offset:2px}
.actions{display:flex;justify-content:flex-end;align-items:center;gap:6px}
.actions form{margin:0}
.inline-form{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.inline-form .input{flex:1;width:auto;min-width:200px}
.input-group{display:flex;flex:1;min-width:240px}
.input-group .input{flex:1;min-width:0;border-radius:var(--radius) 0 0 var(--radius)}
.input-suffix{display:flex;align-items:center;padding:0 12px;border:1px solid var(--border);border-left:0;border-radius:0 var(--radius) var(--radius) 0;white-space:nowrap;color:var(--muted-fg);background:var(--muted)}
.stack-form{display:grid;gap:16px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:grid;gap:6px;min-width:0}
.picker{margin:0;padding:0;border:0}
.picker>.label{margin-bottom:6px;padding:0}
.checks{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px}
.check{display:flex;align-items:center;gap:8px;min-width:0;padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius);font-size:13px;cursor:pointer}
.check span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.check:hover{background:var(--subtle)}
.check-inline{display:inline-flex;align-items:center;gap:8px;font-size:13px;cursor:pointer}
input[type=checkbox]{width:16px;height:16px;margin:0;accent-color:var(--primary)}
.secret{padding:2px 8px;border:1px solid var(--success-border);border-radius:6px;font:600 14px ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--fg);background:var(--card);user-select:all}
.confirm{position:relative}
.confirm>summary{list-style:none}
.confirm>summary::-webkit-details-marker{display:none}
.confirm[open]>summary{background:var(--muted)}
.confirm-panel{position:absolute;top:calc(100% + 6px);right:0;z-index:20;display:grid;gap:10px;width:280px;padding:14px;border:1px solid var(--border);border-radius:var(--radius);font-size:13px;text-align:left;white-space:normal;background:var(--card);box-shadow:var(--shadow-lg)}
.panel>details .confirm-panel{right:auto;left:0}
.confirm-panel form{margin:0}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

@media (max-width:1100px){.app-home,.app-admin{grid-template-columns:200px minmax(0,1fr)}.app-mailbox{grid-template-columns:200px 300px minmax(0,1fr)}}
@media (max-width:800px){
.app{display:flex;flex-direction:column;height:auto;min-height:100vh;min-height:100dvh;margin:0;overflow:visible;border:0;border-radius:0;box-shadow:none}
.sidebar{border-right:0;border-bottom:1px solid var(--border)}
.nav{display:flex;gap:6px;overflow-x:auto;padding:8px 12px}
.nav-label,.nav-empty{display:none}
.nav-item{flex:none;border:1px solid var(--border)}
.sidebar-foot{grid-template-columns:minmax(0,1fr) auto;align-items:center;padding:8px 12px}
.list-pane{border-right:0}
.messages{overflow:visible}
.app.has-message .list-pane,.app-mailbox:not(.has-message) .reader{display:none}
.toolbar .back{display:inline-flex}
.msg-head{flex-wrap:wrap}
.msg-date{width:100%;text-align:left}
iframe.mail-body{min-height:70vh}
.main{justify-content:flex-start}
.admin{padding:16px}
.table thead{display:none}
.table,.table tbody,.table tr,.table td{display:block;width:100%}
.table tr{padding:12px 16px;border-bottom:1px solid var(--border)}
.table tbody tr:last-child{border-bottom:0}
.table td{padding:2px 0;border:0}
.table td[data-label]::before{content:attr(data-label) ": ";color:var(--muted-fg)}
.table td.actions{display:flex;flex-wrap:wrap;justify-content:flex-start;padding-top:8px}
.form-grid{grid-template-columns:minmax(0,1fr)}
.confirm-panel{right:auto;left:0}
}