:root{--bg:#f6f8fc;--surface:#fff;--surface2:#eef2f9;--text:#1f2430;--muted:#5f6b7d;--border:#e1e6ef;
--accent:#1a73e8;--accent-hover:#1557b0;--accent-fg:#fff;--accent-soft:#d3e3fd;--danger:#c5221f;--warn-bg:#fff7e0;--warn-border:#f1dc94;
--hover:#f2f6fc;--star:#f5b400;--head:#404040;--shadow:0 1px 2px rgba(60,64,67,.15),0 1px 3px 1px rgba(60,64,67,.1);color-scheme:light;}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#141821;--surface:#1c212c;--surface2:#262c3a;--text:#e6e9f0;--muted:#a0a9ba;--border:#2f3646;
--accent:#8ab4f8;--accent-hover:#aecbfa;--accent-fg:#0f1620;--accent-soft:#2a3f66;--danger:#f28b82;--warn-bg:#2b2410;--warn-border:#5c4b17;
--hover:#242a38;--star:#fdd663;--head:#2b3245;--shadow:0 1px 2px rgba(0,0,0,.5),0 2px 8px rgba(0,0,0,.35);color-scheme:dark;}}:root[data-theme=dark]{--bg:#141821;--surface:#1c212c;--surface2:#262c3a;--text:#e6e9f0;--muted:#a0a9ba;--border:#2f3646;
--accent:#8ab4f8;--accent-hover:#aecbfa;--accent-fg:#0f1620;--accent-soft:#2a3f66;--danger:#f28b82;--warn-bg:#2b2410;--warn-border:#5c4b17;
--hover:#242a38;--star:#fdd663;--head:#2b3245;--shadow:0 1px 2px rgba(0,0,0,.5),0 2px 8px rgba(0,0,0,.35);color-scheme:dark;}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:14px/1.5 "Google Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,system-ui,sans-serif;color:var(--text);background:var(--bg)}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
header{position:sticky;top:0;z-index:5;display:flex;gap:1rem;align-items:center;padding:.55rem 1rem;background:var(--bg)}
header .brand{width:14rem;font-weight:600;font-size:1.25rem;letter-spacing:-.01em;color:var(--text)}
header .brand::before{content:"";display:inline-block;width:.85rem;height:.85rem;margin-right:.55rem;border-radius:4px;background:linear-gradient(135deg,var(--accent),#34a853)}
.hsearch{flex:1;max-width:46rem}
.hsearch input{margin:0;padding:.7rem 1.1rem;border:0;border-radius:999px;background:var(--surface2)}
.hsearch input:focus{background:var(--surface);box-shadow:var(--shadow)}
.acct{margin-left:auto;color:var(--muted);font-size:.85rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.layout{display:grid;grid-template-columns:14rem minmax(0,1fr);gap:.8rem;padding:0 1rem 1rem;align-items:start}
nav{position:sticky;top:4rem}
.compose-btn{display:inline-flex;align-items:center;gap:.5rem;margin:.2rem 0 1rem;padding:.9rem 1.5rem;border-radius:16px;font-weight:600;font-size:.95rem;
background:var(--accent-soft);color:var(--text);box-shadow:var(--shadow);transition:box-shadow .15s}
.compose-btn:hover{text-decoration:none;box-shadow:0 2px 6px rgba(60,64,67,.3)}
nav ul{list-style:none;margin:0;padding:0}
nav li a{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.35rem 1rem;border-radius:0 999px 999px 0;color:var(--text);min-height:2rem}
nav li a:hover{background:var(--hover);text-decoration:none}
nav li.cur a{background:var(--accent-soft);font-weight:700}
.badge{font-size:.75rem;font-weight:700}
main{min-width:0;background:var(--surface);border-radius:16px;padding:1rem 1.2rem;box-shadow:var(--shadow)}
main.solo{max-width:25rem;margin:12vh auto 0;padding:1.6rem}
h1{font-size:1.25rem;font-weight:500;margin:.1rem 0 .8rem}h1 small{color:var(--muted);font-weight:400;font-size:.85rem;margin-left:.4rem}
h1.subject{font-size:1.4rem;font-weight:400;margin:.6rem 0 1rem}h2{font-size:.95rem;margin:1.4rem 0 .5rem}
label{display:block;margin:.8rem 0;color:var(--muted);font-size:.85rem;font-weight:500}
input,textarea,select{font:inherit;color:var(--text)}
input,textarea{display:block;width:100%;margin-top:.3rem;padding:.6rem .75rem;background:var(--surface2);
border:1px solid transparent;border-radius:8px;outline:none;transition:border-color .12s,background .12s}
input:focus,textarea:focus{border-color:var(--accent);background:var(--surface)}
textarea{resize:vertical;min-height:8rem}
select{padding:.35rem .6rem;background:var(--surface2);border:1px solid var(--border);border-radius:999px}
input[type=file]{padding:.5rem}label.check{color:var(--text)}label.check input{display:inline;width:auto;margin:0 .4rem 0 0}
button,.btn{display:inline-block;padding:.45rem 1.1rem;font:inherit;font-weight:500;cursor:pointer;color:var(--accent-fg);background:var(--accent);border:1px solid transparent;border-radius:999px;transition:background .12s}
button:hover{background:var(--accent-hover)}
.btn,button.secondary,button.tool,header button{color:var(--text);background:transparent;border:1px solid var(--border)}
.btn:hover,button.secondary:hover,button.tool:hover,header button:hover{background:var(--hover);text-decoration:none}
.btn.primary{background:var(--accent);color:var(--accent-fg);border-color:transparent}
button.tool{padding:.3rem .8rem;font-size:.85rem}button.danger{color:var(--danger)}
button.star{padding:0 .3rem;border:0;background:transparent;color:var(--muted);font-size:1.15rem;line-height:1}
button.star:hover{background:transparent;color:var(--star)}button.star.on{color:var(--star)}
form.inline{display:inline;margin:0}
.toolbar{display:flex;flex-wrap:wrap;gap:.6rem 1rem;align-items:center;justify-content:space-between}
.toolbar h1{margin:.1rem 0}.tools{display:flex;flex-wrap:wrap;gap:.4rem;align-items:center}
.msgbar{justify-content:flex-start;margin-bottom:.4rem}
table.list{width:100%;border-collapse:collapse;table-layout:fixed;margin-top:.4rem}
table.list td{padding:.35rem .4rem;border-bottom:1px solid var(--border);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;vertical-align:middle}
table.list tr:hover td{background:var(--hover)}
table.list td.chk{width:2rem;padding-left:.6rem}table.list td.chk input{margin:0;width:auto;display:inline}
table.list td.starcell{width:2.2rem}
table.list td.who{width:17rem}table.list td.who .name{margin-left:.6rem}
table.list td.when{width:9.5rem;text-align:right;color:var(--muted);font-size:.85rem}
table.list td.subj a{color:var(--text)}table.list td.subj .snip{color:var(--muted);font-weight:400}
table.list td.empty{padding:2rem;color:var(--muted);text-align:center}
table.list tr.unread td{font-weight:700;background:color-mix(in srgb,var(--surface) 92%,var(--accent-soft))}
table.list tr.unread td.when{color:var(--text)}
.pager{color:var(--muted);display:flex;gap:1rem;align-items:center;margin:1rem 0 0}
.flash{background:var(--warn-bg);border:1px solid var(--warn-border);padding:.6rem .8rem;border-radius:10px;margin:0 0 1rem}
.note{color:var(--muted);font-size:.85rem;margin:0 0 .6rem}.viewbar{color:var(--muted);font-size:.85rem;margin:.2rem 0 .6rem}
.msghead{display:flex;gap:.9rem;align-items:flex-start;margin:.2rem 0 .4rem}
.msghead .who{flex:1;min-width:0;overflow-wrap:anywhere}.msghead .addr,.msghead .to{color:var(--muted);font-size:.85rem}.msghead .when{color:var(--muted);font-size:.85rem;white-space:nowrap}
.avatar{position:relative;flex:none;display:inline-grid;place-items:center;width:1.9rem;height:1.9rem;border-radius:50%;overflow:hidden;color:#fff;font-weight:600;font-size:.85rem;vertical-align:middle}
.avatar.big{width:2.6rem;height:2.6rem;font-size:1.1rem}
.avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#fff;padding:2px}
.av0{background:#1a73e8}.av1{background:#188038}.av2{background:#c5221f}.av3{background:#a142f4}
.av4{background:#e37400}.av5{background:#129eaf}.av6{background:#d01884}.av7{background:#5f6368}
.chip{display:inline-flex;align-items:center;gap:.5rem;padding:.4rem .8rem;border:1px solid var(--border);border-radius:8px;color:var(--text)}
.chip small{color:var(--muted)}a.chip:hover{background:var(--hover);text-decoration:none}
.chip.label{padding:.05rem .55rem;border-radius:6px;background:var(--surface2);color:var(--muted);font-size:.75rem;font-weight:500;vertical-align:middle}
.chips{display:flex;flex-wrap:wrap;gap:.5rem}.chip.withimg img{width:3rem;height:3rem;object-fit:cover;border-radius:6px}
iframe.body{width:100%;height:calc(100vh - 22rem);min-height:24rem;border:0;border-radius:8px;background:#fff}
pre.body{white-space:pre-wrap;overflow-wrap:anywhere;padding:.9rem 1rem;background:var(--surface2);border-radius:8px;font:inherit}
.replybar{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.2rem 0 .8rem}
.quick{border:1px solid var(--border);border-radius:12px;padding:.7rem .9rem;box-shadow:var(--shadow)}
.quick .qhead{display:flex;align-items:center;gap:.6rem;color:var(--muted)}.quick textarea{border:0;background:transparent;min-height:5rem;margin:.3rem 0}
.quick textarea:focus{background:transparent}.qfoot{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}
.cw{max-width:46rem;margin:.5rem auto;border-radius:12px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.28);background:var(--surface);border:1px solid var(--border)}
.cw-head{display:flex;justify-content:space-between;align-items:center;padding:.6rem 1rem;background:var(--head);color:#fff;font-weight:500}
.cw-head a{color:#fff;font-size:1.3rem;line-height:1}
.cw-row{display:flex;align-items:center;gap:.6rem;padding:0 1rem;border-bottom:1px solid var(--border)}
.cw-row label{margin:0;width:2.6rem;color:var(--muted)}
.cw-row input{margin:0;border-radius:0;background:transparent;padding:.7rem 0;border:0}.cw-row input:focus{background:transparent}
.cw-more{border-bottom:1px solid var(--border)}.cw-more summary{padding:.3rem 1rem;color:var(--muted);cursor:pointer;font-size:.85rem}
.cw-more .cw-row:last-child{border-bottom:0}
.cw-body{border:0;border-radius:0;background:transparent;margin:0;padding:1rem;min-height:20rem;font-family:inherit;font-size:.95rem}
.cw-body:focus{background:transparent}.cw-keep{padding:0 1rem;margin:.2rem 0}
.cw-foot{display:flex;flex-wrap:wrap;gap:.7rem;align-items:center;padding:.8rem 1rem;border-top:1px solid var(--border)}
label.attach{margin:0;padding:.4rem .9rem;border-radius:999px;border:1px solid var(--border);color:var(--text);cursor:pointer;font-weight:500;font-size:.85rem}
label.attach:hover{background:var(--hover)}label.attach input{display:none}
.cw-foot .discard{margin-left:auto;color:var(--muted)}
footer.theme{padding:0 1.2rem 1.2rem;color:var(--muted);font-size:.8rem;text-align:right}
@media(max-width:820px){
.layout{grid-template-columns:1fr;padding:0 .6rem .8rem}nav{position:static}
nav ul{display:flex;flex-wrap:wrap;gap:.2rem}nav li a{border-radius:999px;padding:.3rem .9rem}.compose-btn{margin-bottom:.6rem}
header{padding:.5rem .7rem;gap:.6rem}header .brand{width:auto}.acct{display:none}
main{padding:.8rem}table.list,table.list tbody,table.list tr,table.list td{display:block;width:auto!important}
table.list tr{padding:.5rem .2rem;border-bottom:1px solid var(--border)}table.list td{border:0;padding:.05rem .3rem;white-space:normal;text-align:left!important}
table.list td.chk,table.list td.starcell{display:inline-block}
iframe.body{height:70vh}}