:root{--bg:#f5f7fb;--panel:#fff;--line:#e3e7ee;--text:#1c2434;--muted:#6f7c91;--blue:#0f6cbd;--blue2:#115ea3;--rail:#0b172a;--danger:#b42318;--success:#067647}
*{box-sizing:border-box}body{margin:0;font:14px/1.45 "Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--blue);text-decoration:none}h1{font-size:26px;margin:0 0 20px}h2{font-size:18px}.muted{color:var(--muted)}
.app{display:grid;grid-template-columns:54px 1fr;grid-template-rows:52px 1fr;min-height:100vh}.rail{grid-row:1/3;background:var(--rail);display:flex;flex-direction:column;align-items:center;padding-top:8px;gap:4px}.rail .logo{width:36px;height:36px;border-radius:8px;background:#1473e6;color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:8px}.rail a{width:40px;height:40px;color:#b9c8dd;border-radius:8px;display:grid;place-items:center;font-size:19px}.rail a:hover,.rail a.active{background:#193557;color:#fff}
.topbar{grid-column:2;display:flex;align-items:center;gap:20px;padding:0 18px;background:#fff;border-bottom:1px solid var(--line)}.brand{font-size:20px;font-weight:700}.brand span{color:var(--blue)}.search{flex:1;max-width:620px;background:#f2f5f8;border:1px solid var(--line);padding:8px 12px;border-radius:6px;color:var(--muted)}.userbox{margin-left:auto;color:var(--muted)}.content{grid-column:2;padding:24px;max-width:1600px;width:100%}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px}.two-col{display:grid;grid-template-columns:1.4fr .9fr;gap:18px}.mail-layout{display:grid;grid-template-columns:260px 1fr;gap:14px}.sidebar-panel{padding:12px}.account-link{display:block;padding:10px;border-radius:6px;color:var(--text)}.account-link:hover{background:#f1f5f9}.account-link small{display:block;color:var(--muted)}
.message-list{border-top:1px solid var(--line)}.message{display:grid;grid-template-columns:260px 1fr 230px;gap:15px;padding:10px;border-bottom:1px solid var(--line);color:var(--text)}.message:hover{background:#f6f9fc}.message.unseen{font-weight:700}.message .date{color:var(--muted);text-align:right}.mail-body{white-space:pre-wrap;font:14px/1.55 "Segoe UI",Arial,sans-serif;background:#fafbfc;padding:18px;border:1px solid var(--line);border-radius:8px;min-height:300px}
label{display:block;font-weight:600;margin:11px 0 4px}input,select,textarea{width:100%;padding:9px 10px;border:1px solid #cfd6e1;border-radius:6px;background:#fff;color:var(--text);font:inherit}textarea{resize:vertical}.form-grid{display:grid;grid-template-columns:1fr 120px;gap:10px}
.btn{display:inline-block;border:1px solid #c9d0da;background:#fff;padding:8px 12px;border-radius:6px;color:var(--text);cursor:pointer}.btn.primary{background:var(--blue);color:#fff;border-color:var(--blue)}.btn.primary:hover{background:var(--blue2)}
.alert{padding:11px 13px;border-radius:7px;margin-bottom:15px}.alert.error{background:#fef3f2;color:var(--danger);border:1px solid #fecdca}.alert.success{background:#ecfdf3;color:var(--success);border:1px solid #abefc6}
.dash-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.dash-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px;color:var(--text)}.dash-card b{font-size:28px;display:block}.dash-card span{color:var(--muted)}
.item{padding:11px 0;border-bottom:1px solid var(--line)}.item:last-child{border-bottom:0}.item b,.item small{display:block}.item small{color:var(--muted);margin-top:2px}.task-row{display:flex;align-items:flex-start;gap:10px;border-bottom:1px solid var(--line);padding:10px 0}.task-row .check{border:0;background:none;font-size:20px;cursor:pointer}.done{text-decoration:line-through;color:var(--muted)}.task-row small{display:block;color:var(--muted)}.notes-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.note-card{background:#fff8c5;border:1px solid #eadf92;border-radius:8px;padding:14px}.note-card p{white-space:normal}.pill{font-size:10px;background:#eef3f9;color:#52637a;padding:2px 6px;border-radius:999px}.back{display:inline-block;margin-bottom:10px}
.login,.install{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#eef4fb,#f8fafc)}.login-card,.install-card{width:min(460px,92vw);background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:0 12px 40px rgba(20,40,70,.08)}.login-card .brand{font-size:28px}.install-card h1 span{font-size:12px;color:var(--muted)}
@media(max-width:900px){.two-col,.mail-layout{grid-template-columns:1fr}.dash-grid{grid-template-columns:repeat(2,1fr)}.message{grid-template-columns:1fr}.message .date{text-align:left}.search{display:none}}

.email-detect-row{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}
.autoconfig-status{margin:8px 0 14px;padding:9px 10px;border-radius:6px;background:#f4f6f9;color:var(--muted);font-size:12px;border:1px solid var(--line)}
.autoconfig-status.success{background:#ecfdf3;border-color:#abefc6;color:#067647}
.autoconfig-status.warning{background:#fffaeb;border-color:#fedf89;color:#93370d}
.autoconfig-status.error{background:#fef3f2;border-color:#fecdca;color:#b42318}
.autoconfig-status.working{background:#eff8ff;border-color:#b2ddff;color:#175cd3}
@media(max-width:650px){.email-detect-row{grid-template-columns:1fr}.email-detect-row .btn{width:100%}}

.account-item{display:flex;align-items:center;justify-content:space-between;gap:12px}
.account-item form{margin:0}
.provider-note{padding:10px 12px;margin-bottom:12px;border:1px solid #b2ddff;background:#eff8ff;color:#175cd3;border-radius:7px;font-size:12px}
@media(max-width:650px){.account-item{align-items:flex-start;flex-direction:column}}

.account-actions{display:flex;align-items:center;gap:7px}.account-actions form{margin:0}
.oauth-help{padding:9px 10px;border:1px solid #b2ddff;background:#eff8ff;color:#175cd3;border-radius:6px;font-size:12px;margin:8px 0 12px}
.codebox{padding:10px 12px;border:1px solid var(--line);border-radius:6px;background:#f7f9fc;font-family:Consolas,monospace;word-break:break-all}
@media(max-width:650px){.account-actions{width:100%;flex-wrap:wrap}}

.google-btn{background:#fff!important;color:#1f2937!important;border-color:#cbd5e1!important;font-weight:600}

/* V1.4 mail performance + reader */
.inbox-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:10px}
.inbox-head h2{margin:0}
.mail-reader{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.mail-reader-head{padding:22px 24px;border-bottom:1px solid var(--line);background:#fff}
.mail-reader-head h2{margin:0 0 7px;font-size:23px}
.email-text,.email-html{padding:24px;min-height:320px;background:#fff;color:#202124;font-size:15px;line-height:1.55;overflow:auto}
.email-html{font-family:Arial,"Segoe UI",sans-serif}
.email-html img{max-width:100%;height:auto}
.email-html table{max-width:100%}
.email-html a{color:#0f6cbd;text-decoration:underline}
.email-html pre{white-space:pre-wrap}
.remote-image-blocked{display:inline-block;padding:3px 6px;border:1px solid #d0d5dd;border-radius:4px;background:#f2f4f7;color:#667085;font-size:11px}
.mail-toolbar{margin-bottom:12px}
.message{min-height:58px;align-items:center}
.message .from,.message .subject{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:900px){.email-text,.email-html{padding:16px}.mail-reader-head{padding:16px}}

/* V1.5 Outlook-inspired mail workspace */
.outlook-shell{display:grid;grid-template-columns:285px minmax(0,1fr);gap:14px;min-height:calc(100vh - 110px)}
.outlook-folders{padding:14px;background:#11151b;color:#eef2f7}
.outlook-folders .folder-title{font-size:16px;font-weight:700;margin:8px 8px 16px}
.account-group{margin-bottom:18px}.account-name{font-weight:700;padding:8px;color:#f8fafc}
.folder-link{display:flex;justify-content:space-between;padding:9px 10px;border-radius:6px;color:#dbe5f1}
.folder-link:hover,.folder-link.active{background:#0b3a5f;color:#fff}.muted-link{opacity:.65}
.outlook-main{padding:0;overflow:hidden;background:#15191e}
.outlook-toolbar{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid #2d3440;background:#20242a;position:sticky;top:0;z-index:4;flex-wrap:wrap}
.outlook-toolbar.compact{position:static}
.toolbar-btn{border:1px solid #4b5563;background:#282d34;color:#f8fafc;border-radius:6px;padding:8px 11px;cursor:pointer}
.toolbar-btn:hover{background:#343a42}.toolbar-btn.primaryish{background:#0f6cbd;border-color:#0f6cbd}
.message-pane-head{display:flex;justify-content:space-between;align-items:center;padding:16px 18px;border-bottom:1px solid #2d3440;background:#181c21;color:#fff}
.message-pane-head h2{margin:0}.mail-sort{color:#aeb7c4;font-size:12px}
.outlook-message-list{background:#181c21}
.outlook-message{display:grid;grid-template-columns:34px minmax(0,1fr) 74px;align-items:center;border-bottom:1px solid #2d3440;min-height:74px}
.outlook-message:hover{background:#22272e}.outlook-message.unseen{background:#17212b}
.msg-select{display:grid;place-items:center}.mail-select{width:16px;height:16px}
.msg-open{display:grid;grid-template-columns:44px 1fr;gap:10px;align-items:center;padding:10px 0;color:#f2f5f8;min-width:0}
.avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#0f6cbd;color:#fff;font-weight:700}
.msg-body{min-width:0}.msg-top{display:flex;justify-content:space-between;gap:12px}
.msg-top .from{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.msg-top .date{font-size:12px;color:#98a3b3;white-space:nowrap}
.msg-body .subject{margin-top:3px;color:#c7d0db;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.outlook-message.unseen .from,.outlook-message.unseen .subject{font-weight:700;color:#fff}
.msg-actions{display:flex;gap:4px;justify-content:flex-end;padding-right:8px}.msg-actions form{margin:0}
.icon-btn{border:0;background:transparent;color:#cbd5e1;cursor:pointer;font-size:16px;padding:6px;border-radius:5px}.icon-btn:hover{background:#343b44}.icon-btn.flagged{color:#f3c84b}
.outlook-reader{border:0;border-radius:0;background:#fff}.empty-state{padding:40px;color:#98a3b3}
@media(max-width:900px){.outlook-shell{grid-template-columns:1fr}.outlook-folders{display:none}.outlook-toolbar{position:static}.outlook-message{grid-template-columns:30px minmax(0,1fr) 60px}}

/* V1.6 composer and real-folder UX */
.composer{background:#171b20;min-height:calc(100vh - 140px)}
.composer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid #303741}
.composer-head h2{margin:0;color:#fff}
.composer form{padding:14px 18px}
.compose-row{display:grid;grid-template-columns:80px 1fr;align-items:center;border-bottom:1px solid #303741}
.compose-row label{margin:0;color:#aeb7c4;font-weight:500}
.compose-row input{border:0!important;border-radius:0!important;background:transparent!important;color:#fff!important;min-height:44px;padding:10px 0!important}
.compose-row input:focus{outline:0!important}
.compose-static{padding:10px 0;color:#e5e7eb}
.compose-body{width:100%;min-height:380px;margin-top:14px;border:1px solid #303741;border-radius:7px;background:#fff;color:#111827;padding:16px;font:15px/1.55 "Segoe UI",Arial,sans-serif}
.compose-actions{padding:12px 0}
.mail-meta{display:grid;gap:3px;color:#667085;font-size:13px;margin-top:8px}
.outlook-folders{overflow:auto;max-height:calc(100vh - 110px)}
.folder-link span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:700px){.compose-row{grid-template-columns:1fr}.compose-row label{padding-top:8px}.compose-body{min-height:280px}}