:root{
  --accent:#2563eb;
  --bg:#ffffff;--bg2:#f4f5f7;--bg3:#e9ebef;--fg:#111318;--muted:#6b7280;--line:#e5e7eb;
  --card:#ffffff;--danger:#dc2626;--ok:#16a34a;--warn:#d97706;
  --shadow:0 8px 30px rgba(0,0,0,.12);
  --row:72px;--radius:14px;
  --safe-t:env(safe-area-inset-top);--safe-b:env(safe-area-inset-bottom);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){--bg:#0f1115;--bg2:#171a20;--bg3:#232731;--fg:#eceef2;--muted:#9aa1ad;--line:#262a33;--card:#171a20;--shadow:0 8px 30px rgba(0,0,0,.5);color-scheme:dark}
}
:root[data-theme="dark"]{--bg:#0f1115;--bg2:#171a20;--bg3:#232731;--fg:#eceef2;--muted:#9aa1ad;--line:#262a33;--card:#171a20;--shadow:0 8px 30px rgba(0,0,0,.5);color-scheme:dark}
:root[data-density="compact"]{--row:58px}
:root[data-density="large"]{--row:88px}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--fg);font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-text-size-adjust:100%}
body{overscroll-behavior-y:none}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--accent)}
.muted{color:var(--muted)}
.hidden{display:none!important}

/* auth */
body.auth{display:grid;place-items:center;min-height:100%;background:var(--bg2);padding:20px}
.auth-card{width:100%;max-width:360px;background:var(--card);border-radius:20px;padding:28px 22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}
.auth-card h1{margin:0;font-size:22px;text-align:center}
.auth-logo{width:64px;height:64px;border-radius:16px;margin:0 auto}
.auth-card .muted{text-align:center;margin:0}
.err{color:var(--danger);margin:0;text-align:center}
.warn{color:var(--warn);font-size:13px;margin:0}

label{display:flex;flex-direction:column;gap:5px;font-size:13px;color:var(--muted)}
label.row{flex-direction:row;align-items:center;gap:10px;color:var(--fg);font-size:15px}
input,select,textarea{background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:11px 12px;font-size:16px;color:var(--fg);outline:none;width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 20%,transparent)}
input[type=checkbox]{width:20px;height:20px;accent-color:var(--accent);flex:none}
input[type=color]{padding:2px;height:42px;width:60px}
textarea{resize:vertical;min-height:120px}

.btn{border:0;border-radius:12px;padding:11px 16px;background:var(--bg3);font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px}
.btn.primary{background:var(--accent);color:#fff}
.btn.danger{background:color-mix(in srgb,var(--danger) 14%,transparent);color:var(--danger)}
.btn.ghost{background:transparent}
.btn:disabled{opacity:.5}
.btn.sm{min-height:34px;padding:6px 12px;font-size:14px}
.icon-btn{border:0;background:transparent;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;cursor:pointer;color:var(--fg);flex:none}
.icon-btn:active{background:var(--bg3)}
.icon-btn svg,.btn svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* layout */
#app{height:100%;display:flex;overflow:hidden}
#app.loading{display:grid;place-items:center}
.spinner{width:28px;height:28px;border:3px solid var(--bg3);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.drawer{width:280px;flex:none;background:var(--bg2);border-right:1px solid var(--line);display:flex;flex-direction:column;padding-top:var(--safe-t);overflow-y:auto}
.pane-list{flex:1 1 380px;min-width:0;display:flex;flex-direction:column;border-right:1px solid var(--line);position:relative}
.pane-read{flex:1.6 1 520px;min-width:0;display:flex;flex-direction:column;background:var(--bg)}
.empty-read{flex:1;display:grid;place-items:center;color:var(--muted)}

.topbar{display:flex;align-items:center;gap:4px;padding:calc(var(--safe-t) + 6px) 8px 6px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);position:sticky;top:0;z-index:5;min-height:56px}
.topbar h2{flex:1;margin:0 4px;font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .sub{display:block;font-size:12px;color:var(--muted);font-weight:400}
.searchbar{flex:1}
.searchbar input{padding:8px 12px}

.list{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding-bottom:calc(90px + var(--safe-b))}
.msg{position:relative;overflow:hidden;border-bottom:1px solid var(--line);touch-action:pan-y}
.msg-inner{display:flex;gap:10px;padding:10px 14px 10px 10px;min-height:var(--row);background:var(--bg);position:relative;z-index:1;cursor:pointer;transition:transform .2s}
.msg.dragging .msg-inner{transition:none}
.msg-inner:active{background:var(--bg2)}
.msg.active .msg-inner{background:color-mix(in srgb,var(--accent) 10%,var(--bg))}
.msg .stripe{width:4px;border-radius:4px;flex:none}
.msg .body{flex:1;min-width:0}
.msg .l1{display:flex;align-items:baseline;gap:8px}
.msg .from{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.msg .date{font-size:12px;color:var(--muted);flex:none}
.msg .subj{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-size:14px}
.msg .meta{font-size:12px;color:var(--muted);display:flex;gap:6px;align-items:center}
.msg.unread .from,.msg.unread .subj{font-weight:700;color:var(--fg)}
.msg.unread .stripe::after{content:"";display:block}
.dot{width:9px;height:9px;border-radius:50%;background:var(--accent);flex:none;align-self:center}
.flag{color:#f59e0b}
.swipe-bg{position:absolute;inset:0;display:flex;justify-content:space-between;align-items:center;padding:0 22px;color:#fff;font-weight:700;font-size:14px}
.swipe-bg .r,.swipe-bg .l{opacity:0}
.more{padding:16px;text-align:center}
.list-error{margin:10px;padding:10px 12px;border-radius:10px;background:color-mix(in srgb,var(--danger) 10%,transparent);color:var(--danger);font-size:13px}
.empty{padding:60px 20px;text-align:center;color:var(--muted)}

.fab{position:absolute;right:18px;bottom:calc(18px + var(--safe-b));width:58px;height:58px;border-radius:18px;background:var(--accent);color:#fff;border:0;box-shadow:var(--shadow);display:grid;place-items:center;z-index:6;cursor:pointer}
.fab svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round}

/* drawer */
.drawer-head{padding:16px 16px 8px;font-weight:700;font-size:20px;display:flex;align-items:center;gap:10px}
.drawer-head img{width:30px;height:30px;border-radius:8px}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 16px;cursor:pointer;border-radius:10px;margin:1px 8px;min-height:44px;user-select:none}
.nav-item:active,.nav-item.active{background:var(--bg3)}
.nav-item .cdot{width:10px;height:10px;border-radius:50%;flex:none}
.nav-item .name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav-item svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.nav-sub .nav-item{padding-left:38px;font-size:14px;min-height:38px}
.nav-sep{height:1px;background:var(--line);margin:8px 16px}
.drawer-foot{margin-top:auto;padding-bottom:calc(10px + var(--safe-b))}
.scrim{display:none}

/* reader */
.reader{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding-bottom:calc(30px + var(--safe-b))}
.actions{display:flex;gap:2px;overflow-x:auto;padding:4px 6px;border-bottom:1px solid var(--line);scrollbar-width:none;background:var(--bg)}
.actions::-webkit-scrollbar{display:none}
.act{border:0;background:transparent;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;color:var(--muted);padding:6px 8px;border-radius:10px;min-width:62px;cursor:pointer}
.act svg{width:22px;height:22px;stroke:var(--fg);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.act.ai svg{stroke:var(--accent)}
.act:active{background:var(--bg3)}
.r-head{padding:16px}
.r-subj{font-size:21px;font-weight:700;margin:0 0 12px;line-height:1.3;word-wrap:break-word}
.r-from{display:flex;gap:10px;align-items:center}
.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:700;flex:none}
.r-from .who{flex:1;min-width:0}
.r-from .who b{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.r-from .who small{color:var(--muted);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.r-to{font-size:13px;color:var(--muted);margin-top:8px;word-break:break-all}
.banner{margin:0 16px 10px;padding:8px 12px;background:var(--bg2);border-radius:10px;font-size:13px;display:flex;align-items:center;gap:8px;justify-content:space-between}
.r-body{padding:0 10px}
.r-body iframe{width:100%;border:0;display:block;min-height:120px;background:#fff;border-radius:10px}
.atts{display:flex;flex-wrap:wrap;gap:8px;padding:12px 16px}
.att{display:flex;align-items:center;gap:8px;background:var(--bg2);border-radius:10px;padding:8px 12px;text-decoration:none;color:var(--fg);font-size:13px;max-width:100%}
.att span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.att small{color:var(--muted)}

/* sheets / compose / settings */
.sheet{position:fixed;inset:0;z-index:50;background:var(--bg);display:flex;flex-direction:column;animation:up .22s ease-out}
@keyframes up{from{transform:translateY(30px);opacity:.4}to{transform:none;opacity:1}}
.sheet .content{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:12px 16px calc(30px + var(--safe-b))}
@media (min-width:900px){
  .sheet{inset:auto;left:50%;top:50%;transform:translate(-50%,-50%);width:min(760px,94vw);height:min(860px,92vh);border-radius:18px;box-shadow:var(--shadow);animation:none}
  .sheet-scrim{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:49}
}
.field{display:flex;align-items:center;border-bottom:1px solid var(--line);gap:8px}
.field>span{color:var(--muted);font-size:14px;width:56px;flex:none}
.field input,.field select{border:0;background:transparent;padding:12px 0;border-radius:0;box-shadow:none!important}
.compose-body{border:0;background:transparent;padding:12px 0;min-height:240px;border-radius:0;box-shadow:none!important;font-size:16px;line-height:1.5}
.ai-box{margin:12px 0;padding:12px;border-radius:14px;background:color-mix(in srgb,var(--accent) 8%,var(--bg2));display:flex;flex-direction:column;gap:10px}
.ai-box h4{margin:0;font-size:14px;display:flex;align-items:center;gap:6px}
.ai-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.ai-row select{width:auto;flex:1;min-width:120px;padding:8px}
.mic{width:56px;height:56px;border-radius:50%;border:0;background:var(--accent);color:#fff;display:grid;place-items:center;cursor:pointer;flex:none}
.mic svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round}
.mic.rec{background:var(--danger);animation:pulse 1.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--danger) 50%,transparent)}100%{box-shadow:0 0 0 16px transparent}}
.dict{min-height:70px;background:var(--bg)}
.quote{font-size:13px;color:var(--muted);border-left:3px solid var(--line);padding-left:10px;white-space:pre-wrap;max-height:200px;overflow:auto;margin-top:8px}
.chips{display:flex;gap:6px;flex-wrap:wrap;padding:8px 0}
.chip{background:var(--bg2);border-radius:20px;padding:6px 10px;font-size:13px;display:flex;gap:6px;align-items:center}
.chip button{border:0;background:none;padding:0;cursor:pointer;color:var(--muted)}

.section{margin:18px 0}
.section>h3{font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:0 0 8px 4px}
.group{background:var(--bg2);border-radius:var(--radius);overflow:hidden}
.group .item{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line);min-height:50px}
.group .item:last-child{border-bottom:0}
.group .item .grow{flex:1;min-width:0}
.group .item small{display:block;color:var(--muted);overflow:hidden;text-overflow:ellipsis}
.form{display:flex;flex-direction:column;gap:12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid3{display:grid;grid-template-columns:2fr 1fr 1fr;gap:8px}
.presets{display:flex;gap:6px;flex-wrap:wrap}
.hint{font-size:13px;color:var(--muted);background:var(--bg2);border-radius:10px;padding:10px 12px;line-height:1.45}
.tag{font-size:11px;background:var(--bg3);border-radius:6px;padding:2px 6px;color:var(--muted)}
.swatches{display:flex;gap:8px;flex-wrap:wrap}
.swatch{width:32px;height:32px;border-radius:50%;border:3px solid transparent;cursor:pointer}
.swatch.on{border-color:var(--fg)}

#toast{position:fixed;left:50%;bottom:calc(24px + var(--safe-b));transform:translateX(-50%) translateY(20px);background:#111;color:#fff;padding:10px 16px;border-radius:12px;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:100;max-width:90vw;text-align:center}
#toast.show{opacity:1;transform:translateX(-50%)}
#toast.err{background:var(--danger)}

/* mobile */
@media (max-width:899px){
  .drawer{position:fixed;inset:0 auto 0 0;z-index:40;transform:translateX(-102%);transition:transform .25s;width:min(300px,84vw);box-shadow:var(--shadow)}
  .drawer.open{transform:none}
  .scrim.show{display:block;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:39}
  .pane-list{border-right:0}
  .pane-read{position:fixed;inset:0;z-index:30;transform:translateX(100%);transition:transform .25s}
  .pane-read.open{transform:none}
  .desk-only{display:none!important}
}
@media (min-width:900px){
  .mob-only{display:none!important}
  .pane-list{max-width:460px}
}
/* default inline icon */
svg[viewBox="0 0 24 24"]{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none;vertical-align:middle}
.mic svg{width:26px;height:26px}
.group .item{flex-wrap:wrap}
.att{max-width:260px}
.banner span{display:flex;align-items:center;gap:6px}
.group .item .swatches{flex-basis:100%;margin-top:6px}
.ai-row .dict{flex:1;width:auto;min-width:0}
.count{background:var(--accent);color:#fff;border-radius:10px;font-size:12px;font-weight:700;padding:1px 7px;min-width:20px;text-align:center}
.suggest{background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);margin:4px 0;overflow:hidden}
.suggest div{padding:10px 12px;cursor:pointer;border-bottom:1px solid var(--line)}
.suggest div:last-child{border-bottom:0}
.suggest div:active{background:var(--bg2)}
.suggest small{display:block;color:var(--muted)}
.modal{position:fixed;inset:0;z-index:80;background:rgba(0,0,0,.4);display:flex;align-items:flex-end;justify-content:center;padding:12px calc(12px + var(--safe-b))}
.modal-box{background:var(--card);border-radius:18px;padding:16px;width:100%;max-width:420px;display:flex;flex-direction:column;gap:8px;animation:up .2s}
.modal-box p{margin:0 0 6px;text-align:center;font-weight:600}
@media (min-width:900px){.modal{align-items:center}}
.ptr{position:absolute;left:50%;top:60px;margin-left:-18px;width:36px;height:36px;border-radius:50%;background:var(--card);box-shadow:var(--shadow);display:grid;place-items:center;opacity:0;z-index:4;pointer-events:none;transition:opacity .2s}
input[readonly][data-copy]{font-size:12px;font-family:ui-monospace,Menlo,monospace;cursor:copy}
/* attachment viewer */
.att{border:0;cursor:pointer;font:inherit;text-align:left}
.viewer{position:fixed;inset:0;z-index:70;background:var(--bg2);display:flex;flex-direction:column}
.viewer .topbar h2{font-size:16px}
.v-body{flex:1;overflow:auto;-webkit-overflow-scrolling:touch;padding-bottom:calc(20px + var(--safe-b))}
.v-pages{display:flex;flex-direction:column;align-items:center;gap:10px;padding:8px;min-width:min-content}
.v-pages canvas{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.15);border-radius:4px;max-width:none}
.v-count{font-size:12px;color:var(--muted)}
.v-img{min-height:100%;display:grid;place-items:center;padding:8px}
.v-img img{max-width:100%;max-height:calc(100vh - 90px);object-fit:contain;cursor:zoom-in;border-radius:6px}
.v-img img.full{max-width:none;max-height:none;cursor:zoom-out}
.v-text{margin:0;padding:14px;white-space:pre-wrap;word-break:break-word;font:13px/1.5 ui-monospace,Menlo,monospace;background:var(--bg);min-height:100%}
.v-file{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;padding:60px 24px}
.v-file>svg{width:48px;height:48px}
.ai-box.kbd-hint .dict{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}
/* split layout: list on top, reader below */
.splitter,.split-only{display:none!important}
html[data-layout="split"] #app:not(.loading){display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:var(--split,45dvh) 16px minmax(0,1fr)}
html[data-layout="split"] .drawer{grid-row:1/4;grid-column:1}
html[data-layout="split"] .pane-list{grid-column:2;grid-row:1;max-width:none;border-right:0;min-height:0}
html[data-layout="split"] .splitter{display:flex!important;grid-column:2;grid-row:2;align-items:center;justify-content:center;background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);cursor:row-resize;touch-action:none;user-select:none}
html[data-layout="split"] .splitter span{width:44px;height:5px;border-radius:3px;background:var(--muted);opacity:.5}
html[data-layout="split"] .splitter.drag span{background:var(--accent);opacity:1}
html[data-layout="split"] .pane-read{grid-column:2;grid-row:3;min-height:0;position:relative!important;inset:auto!important;transform:none!important;z-index:auto;transition:none}
html[data-layout="split"] .pane-read .topbar{padding-top:4px;min-height:48px}
html[data-layout="split"] .pane-read .mob-only{display:none!important}
html[data-layout="split"] .split-only{display:grid!important}
html[data-layout="split"] .empty-read{display:grid!important}
html[data-layout="split"] .fab{bottom:12px}
html[data-layout="split"] .pane-list .list{padding-bottom:84px}
html[data-layout="split"].maxread .pane-read{position:fixed!important;inset:0!important;z-index:30}
html[data-layout="split"].maxread .pane-read .topbar{padding-top:calc(var(--safe-t) + 6px)}
@media (max-width:899px){
  html[data-layout="split"] .sheet.compose{top:calc(var(--split,45dvh) + 16px);border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(0,0,0,.12);animation:none}
  html[data-layout="split"] .sheet.compose .topbar{padding-top:4px}
  html[data-layout="split"].maxread .sheet.compose{top:0}
}
/* ---- v1.5 compact look ---- */
:root{--row:56px}
:root[data-density="compact"]{--row:44px}
:root[data-density="large"]{--row:72px}
html,body{font-size:14px}
.topbar{min-height:48px;padding:calc(var(--safe-t) + 3px) 6px 3px}
.topbar h2{font-size:16px}
.topbar .sub{font-size:11px}
.icon-btn{width:38px;height:38px}
.icon-btn svg{width:20px;height:20px}
/* list */
.msg-inner{gap:8px;padding:6px 12px 6px 8px}
.msg .stripe{width:3px}
.msg .from{font-size:14px}
.msg .subj{font-size:13px;line-height:1.3}
.msg .date{font-size:11px}
.msg .meta{font-size:11px;line-height:1.2}
.msg .meta:empty{display:none}
.dot{width:8px;height:8px}
:root[data-density="compact"] .msg .l1{display:flex}
:root[data-density="compact"] .msg-inner{padding:4px 10px 4px 8px}
:root[data-density="compact"] .msg .subj{font-size:12.5px}
.fab{width:50px;height:50px;border-radius:15px;right:14px;bottom:calc(14px + var(--safe-b))}
.fab svg{width:22px;height:22px}
/* drawer */
.drawer{width:240px}
.drawer-head{padding:12px 14px 6px;font-size:17px;gap:8px}
.drawer-head img{width:24px;height:24px;border-radius:6px}
.nav-item{padding:6px 12px;min-height:36px;margin:0 6px;gap:8px;font-size:14px;border-radius:8px}
.nav-item svg{width:18px;height:18px}
.nav-item .icon-btn{width:28px!important;height:28px!important}
.nav-sub .nav-item{padding-left:32px;min-height:32px;font-size:13px}
.nav-sep{margin:5px 14px}
.count{font-size:11px;padding:0 6px;min-width:18px}
/* reader */
.actions{padding:2px 4px}
.act{min-width:54px;padding:4px 6px;font-size:10px}
.act svg{width:20px;height:20px}
.r-head{padding:10px 12px}
.r-subj{font-size:18px;margin-bottom:8px}
.avatar{width:34px;height:34px;font-size:14px}
.r-to{font-size:12px;margin-top:6px}
.banner{margin:0 12px 8px;padding:6px 10px;font-size:12px}
.r-body{padding:0 6px}
.atts{padding:8px 12px;gap:6px}
.att{padding:6px 10px;font-size:12px}
/* settings / sheets */
.group .item{padding:9px 12px;min-height:42px}
.section{margin:14px 0}
.btn{min-height:38px;padding:8px 14px}
.field input,.field select{padding:9px 0}
.compose-body{min-height:200px;font-size:15px}
.msg .l2{display:flex;align-items:center;gap:6px;min-width:0}
.msg .l2 .subj{flex:1;min-width:0}
.msg .l2 .meta{flex:none;font-size:11px;gap:4px}
.msg .l2 .meta .acc{max-width:90px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;background:var(--bg2);border-radius:5px;padding:0 5px}
.msg-inner{align-items:center}
.msg .stripe{align-self:stretch}
/* ---- density: tiny (one line per message, The Bat!-style) ---- */
:root[data-density="tiny"]{--row:0px}
:root[data-density="tiny"] .msg-inner{padding:3px 10px 3px 6px;gap:6px;min-height:28px}
:root[data-density="tiny"] .msg .body{display:flex;align-items:center;gap:10px;min-width:0}
:root[data-density="tiny"] .msg .l1,:root[data-density="tiny"] .msg .l2{display:contents}
:root[data-density="tiny"] .msg .from{order:1;flex:0 0 30%;max-width:240px;font-size:13px}
:root[data-density="tiny"] .msg .subj{order:2;flex:1 1 auto;min-width:0;font-size:13px;color:var(--fg);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
:root[data-density="tiny"] .msg .meta{order:3}
:root[data-density="tiny"] .msg .date{order:4;min-width:38px;text-align:right}
:root[data-density="tiny"] .msg.unread .subj{font-weight:700}
:root[data-density="tiny"] .dot{width:6px;height:6px}
:root[data-density="tiny"] .msg .stripe{width:3px}
:root[data-density="tiny"] .nav-item{min-height:27px;padding:2px 10px;font-size:13px;gap:7px}
:root[data-density="tiny"] .nav-item svg{width:16px;height:16px}
:root[data-density="tiny"] .nav-sub .nav-item{min-height:24px;font-size:12.5px}
:root[data-density="tiny"] .drawer-head{padding:8px 12px 4px;font-size:15px}
:root[data-density="tiny"] .nav-sep{margin:3px 12px}
:root[data-density="tiny"] .count{font-size:10.5px;padding:0 5px}
:root[data-density="tiny"] .actions .act{min-width:48px;padding:3px 4px}
:root[data-density="tiny"] .r-head{padding:8px 12px}
:root[data-density="tiny"] .r-subj{font-size:16px}
@media (max-width:899px){:root[data-density="tiny"] .msg .from{flex-basis:34%}}
/* compact: tighter two-line */
:root[data-density="compact"] .nav-item{min-height:32px;padding:4px 12px}
.ftotal{font-size:11px;color:var(--muted);min-width:22px;text-align:right;margin-left:4px}
.nav-item .count+.ftotal{margin-left:2px}
/* ---- v1.6: table rows (The Bat!-style) when the list is wide, threads ---- */
.pane-list{container-type:inline-size;container-name:list}
.msg .to,.msg .size,.list-head{display:none}
.tcount{display:inline-flex;align-items:center;gap:1px;font-size:11px;font-weight:700;color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent);border-radius:6px;padding:0 5px 0 2px;margin-right:4px;cursor:pointer;flex:none;line-height:18px}
.tcount svg{width:13px;height:13px}
.msg.child .msg-inner{background:var(--bg2)}
.msg.child .l2,.msg.child .l1{padding-left:14px}
.chain{margin:0 12px 10px;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:13px}
.chain>b{display:block;padding:6px 10px;background:var(--bg2);font-size:12px}
.chain-it{display:flex;justify-content:space-between;gap:8px;padding:5px 10px;border-top:1px solid var(--line);cursor:pointer}
.chain-it.cur{background:color-mix(in srgb,var(--accent) 10%,var(--bg))}
.chain-it.unread span{font-weight:700}
.chain-it small{color:var(--muted)}
@container list (min-width: 680px){
  .list-head{display:grid;position:sticky;top:0;z-index:3;background:var(--bg2);border-bottom:1px solid var(--line);font-size:12px;color:var(--muted);padding:4px 12px 4px 17px}
  .list-head,.msg .body{grid-template-columns:minmax(0,3fr) minmax(0,1.4fr) minmax(0,1.2fr) 92px 34px 62px;column-gap:12px;align-items:center}
  .msg .body{display:grid!important}
  .msg .l1,.msg .l2{display:contents!important}
  .msg .l2{padding:0}
  .msg-inner{min-height:0!important;padding:4px 12px 4px 6px!important;gap:6px}
  .msg .subj{grid-column:1;grid-row:1;order:0!important;font-size:13px;color:var(--fg);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center}
  .msg .tcount{grid-column:1;grid-row:1;justify-self:start;position:relative;z-index:1}
  .msg .from{grid-column:2;grid-row:1;order:0!important;font-size:13px;max-width:none!important;flex:none!important}
  .msg .to{display:block;grid-column:3;grid-row:1;font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .msg .date{grid-column:4;grid-row:1;order:0!important;font-size:12px;text-align:left}
  .msg .meta{grid-column:5;grid-row:1;order:0!important;justify-content:center}
  .msg .meta .acc{display:none}
  .msg .size{display:block;grid-column:6;grid-row:1;font-size:12px;color:var(--muted);text-align:right}
  .msg.unread .subj,.msg.unread .from{font-weight:700}
  .msg .dot{display:none}
  .msg.child .subj{padding-left:22px}
  .msg.child .l1,.msg.child .l2{padding-left:0}
  .msg:has(.tcount) .subj{padding-left:46px}
  .h-subj{grid-column:1}.h-from{grid-column:2}.h-to{grid-column:3}.h-date{grid-column:4}.h-att{grid-column:5;text-align:center}.h-size{grid-column:6;text-align:right}
  .msg.unread .msg-inner{box-shadow:inset 3px 0 0 var(--accent)}
}
.msg .sentto{display:none;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.msg.is-sent .from{display:none}
.msg.is-sent .sentto{display:block}
:root[data-density="tiny"] .msg .sentto{order:1;flex:0 0 30%;max-width:240px;font-size:13px}
@container list (min-width: 680px){
  .msg.is-sent .from{display:block}
  .msg.is-sent .sentto{display:none}
}
.msg.sel .msg-inner{background:color-mix(in srgb,var(--accent) 18%,var(--bg))!important}
.msg.sel .stripe{background:var(--accent)!important}
.selbar{display:flex;align-items:center;gap:2px;padding:2px 6px;background:color-mix(in srgb,var(--accent) 10%,var(--bg2));border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.selbar b{font-size:14px;margin-left:2px}
.selbar .grow{flex:1}
.selbar .danger{color:var(--danger)}
/* v1.7: actions live in the reader header */
.pane-read{container-type:inline-size;container-name:read}
.r-top{gap:2px}
.r-top .actions{flex:1;min-width:0;border:0;padding:0;background:transparent;display:flex;gap:0;overflow-x:auto}
.r-top .act{flex-direction:row;min-width:0;padding:6px 7px;gap:5px;font-size:12px;color:var(--fg);white-space:nowrap;border-radius:8px}
.r-top .act span{display:none}
.r-top .act svg{width:19px;height:19px}
@container read (min-width: 760px){ .r-top .act span{display:inline} .r-top .act{padding:6px 8px} }
@container read (min-width: 560px) and (max-width: 759px){ .r-top .act.reply span,.r-top .act.ai span,.r-top .act.translate span{display:inline} }
/* menu open on phone: lock everything behind it */
.drawer{overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.scrim{touch-action:none}
html.drawer-open .list,html.drawer-open .reader,html.drawer-open .v-body{overflow:hidden!important;touch-action:none}
html.drawer-open body{overflow:hidden;position:fixed;inset:0}