:root{font-family:Arial,"Noto Sans JP",sans-serif;color:#202124;background:#f6f8fb}*{box-sizing:border-box}body{margin:0;background:#fff;color:#202124}a{color:inherit}.topbar{height:60px;border-bottom:1px solid #e0e3e7;display:flex;align-items:center;justify-content:space-between;padding:0 22px;background:#fff;position:sticky;top:0;z-index:10}.brand{font-size:20px;font-weight:700}.badge{font-size:11px;border:1px solid #b3261e;color:#b3261e;border-radius:999px;padding:3px 7px;margin-left:8px}.account{font-size:13px;color:#5f6368}.account a{margin-left:12px}.mail-layout{display:grid;grid-template-columns:260px 1fr;min-height:calc(100vh - 60px)}.sidebar{border-right:1px solid #e0e3e7;padding:14px 10px;overflow:auto}.system-nav a,.label-row{display:block;text-decoration:none;padding:8px 12px;border-radius:7px;font-size:14px}.system-nav a:hover,.label-row:hover,.system-nav a.active,.label-row.active{background:#dbe8ff}.sidebar-title{margin:20px 12px 8px;font-weight:700}.label-row{padding-left:calc(12px + var(--depth)*16px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.content{min-width:0}.search{display:flex;gap:8px;padding:14px;border-bottom:1px solid #e0e3e7}.search input{flex:1;border:1px solid #c7cbd1;border-radius:8px;padding:11px 13px;font-size:14px}.search button,.btn{border:0;border-radius:8px;padding:10px 16px;cursor:pointer;text-decoration:none;display:inline-block}.search button,.btn.primary{background:#0b57d0;color:#fff}.status-line{padding:8px 14px;color:#5f6368;font-size:12px;border-bottom:1px solid #eee}.message-row{display:grid;grid-template-columns:260px minmax(0,1fr) 250px;gap:12px;padding:11px 14px;border-bottom:1px solid #eee;text-decoration:none;align-items:center}.message-row:hover{box-shadow:inset 3px 0 #0b57d0;background:#f8faff}.msg-from{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}.msg-main{min-width:0;display:flex;gap:8px}.msg-main strong,.msg-main span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.msg-main span{color:#5f6368}.msg-date{font-size:12px;color:#5f6368;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:right}.empty{padding:40px;text-align:center;color:#5f6368}.login-body{min-height:100vh;display:grid;place-items:center;background:#f2f6fc}.login-card{width:min(520px,calc(100% - 32px));background:#fff;border:1px solid #e0e3e7;border-radius:16px;padding:32px;box-shadow:0 10px 30px rgba(60,64,67,.12)}.login-card h1{font-size:24px;margin:16px 0 8px}.login-card p{line-height:1.7;color:#5f6368}.readonly{margin-top:20px;font-size:12px;color:#5f6368}.alert{padding:12px 14px;border-radius:8px;margin:16px 0}.alert.error{background:#fce8e6;color:#8c1d18}.message-page{max-width:1100px;margin:0 auto;padding:24px}.message-card{border:1px solid #e0e3e7;border-radius:12px;padding:24px}.message-card h1{font-size:22px;margin-top:0}.headers{display:grid;grid-template-columns:80px 1fr;gap:6px 12px;padding-bottom:18px;border-bottom:1px solid #eee}.headers dt{font-weight:700;color:#5f6368}.headers dd{margin:0;overflow-wrap:anywhere}.mail-body{font-family:Arial,"Noto Sans JP",sans-serif;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.75;font-size:14px;background:#fff;padding:16px 0}.attachments{margin-top:20px;border-top:1px solid #eee;padding-top:16px;line-height:1.7}.page{padding:24px}@media(max-width:800px){.topbar{padding:0 12px}.brand{font-size:16px}.account{font-size:11px}.mail-layout{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid #e0e3e7;max-height:38vh}.message-row{grid-template-columns:1fr}.msg-date{text-align:left}.msg-main{display:block}.msg-main span{display:block;margin-top:4px}.message-page{padding:12px}.message-card{padding:16px}}
.badge.step2{border-color:#1a73e8;color:#1a73e8}.message-row{grid-template-columns:24px 250px minmax(0,1fr) 250px}.msg-state{font-size:18px;line-height:1;color:#5f6368;text-align:center}.message-row.is-unread .msg-from,.message-row.is-unread .msg-main strong{font-weight:700;color:#111}.message-row:not(.is-unread) .msg-from,.message-row:not(.is-unread) .msg-main strong{font-weight:400}.message-actions{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.message-actions form{margin:0}.action-btn{border:1px solid #c7cbd1;background:#fff;border-radius:8px;padding:8px 12px;cursor:pointer}.action-btn:hover{background:#f2f6fc}.alert.success{background:#e6f4ea;color:#137333}.label-editor{margin:18px 0;border:1px solid #e0e3e7;border-radius:10px;background:#fafbff}.label-editor summary{padding:12px 14px;cursor:pointer;font-weight:700}.label-form{padding:0 14px 14px}.label-filter{width:100%;border:1px solid #c7cbd1;border-radius:8px;padding:9px 11px;margin-bottom:10px}.label-checklist{max-height:300px;overflow:auto;border:1px solid #e0e3e7;border-radius:8px;background:#fff;margin-bottom:12px}.label-check{display:flex;gap:9px;align-items:flex-start;padding:8px 10px;border-bottom:1px solid #f0f0f0;font-size:13px}.label-check:last-child{border-bottom:0}.label-check:hover{background:#f8faff}.label-check input{margin-top:2px}@media(max-width:800px){.message-row{grid-template-columns:24px 1fr}.msg-main,.msg-date{grid-column:2}.msg-from{grid-column:2}.msg-state{grid-column:1;grid-row:1 / span 3}.label-checklist{max-height:240px}}

/* STEP2-3: Gmail-like label folding and unread/read grouping */
.label-node{display:grid;grid-template-columns:22px minmax(0,1fr);align-items:center;padding-left:calc(var(--depth)*16px)}
.label-node[hidden]{display:none}
.label-toggle,.label-toggle-spacer{width:22px;height:30px;display:grid;place-items:center;flex:0 0 22px}
.label-toggle{border:0;background:transparent;color:#5f6368;cursor:pointer;padding:0;font-size:12px;border-radius:4px}
.label-toggle:hover{background:#eef3fb;color:#202124}
.label-toggle-spacer{pointer-events:none}
.label-node .label-row{padding:8px 8px;min-width:0}
.message-group-title{padding:8px 14px;border-bottom:1px solid #eee;background:#fff;font-size:13px;font-weight:700;color:#3c4043;position:sticky;top:60px;z-index:2}
.message-row{grid-template-columns:24px 250px minmax(0,1fr) 250px}
.msg-main{display:block;min-width:0}
.msg-main strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:800px){.label-node{padding-left:calc(var(--depth)*12px)}.message-group-title{top:60px}.message-row{grid-template-columns:24px 1fr}.msg-main,.msg-date{grid-column:2}.msg-from{grid-column:2}.msg-state{grid-column:1;grid-row:1 / span 3}}

/* STEP2-4: basic compose / reply */
.compose-button{display:inline-flex;align-items:center;justify-content:center;min-width:92px;margin:0 10px 12px;padding:11px 18px;border-radius:14px;background:#c2e7ff;color:#001d35;text-decoration:none;font-weight:700}
.compose-button:hover{box-shadow:0 1px 3px rgba(60,64,67,.3)}
.app-flash{margin:12px 14px 0}.alert.warning{background:#fef7e0;color:#7a4f01}.btn.secondary{background:#fff;color:#202124;border:1px solid #c7cbd1}
.reply-btn{text-decoration:none;display:inline-flex;align-items:center}.compose-page{max-width:920px;margin:0 auto;padding:24px}.compose-card{border:1px solid #e0e3e7;border-radius:14px;padding:24px;background:#fff}.compose-card h1{margin:0 0 22px;font-size:22px}.compose-field{display:grid;grid-template-columns:90px minmax(0,1fr);gap:10px 14px;align-items:center;border-bottom:1px solid #eee;padding:10px 0}.compose-field>span{font-size:13px;font-weight:700;color:#5f6368}.compose-field input,.compose-field select,.compose-field textarea{width:100%;border:1px solid #c7cbd1;border-radius:8px;padding:10px 12px;font:inherit;background:#fff}.compose-field input[readonly]{background:#f5f6f7;color:#5f6368}.compose-field small{grid-column:2;color:#5f6368;font-size:12px}.compose-field.body-field{align-items:start;border-bottom:0}.compose-field textarea{min-height:260px;resize:vertical;line-height:1.6}.reply-source{margin:4px 0 16px 104px;font-size:12px;color:#5f6368}.compose-actions{display:flex;gap:10px;margin-left:104px}.compose-note{margin:14px 0 0 104px;font-size:12px;color:#5f6368}
@media(max-width:800px){.compose-page{padding:12px}.compose-card{padding:16px}.compose-field{grid-template-columns:1fr;gap:6px}.compose-field small{grid-column:1}.reply-source,.compose-actions,.compose-note{margin-left:0}.compose-button{margin-left:0}.compose-field textarea{min-height:220px}}

/* ver 0.7.0: density switch, compact dates, detail sidebar, navigation */
.topbar-actions{display:flex;align-items:center;gap:14px}.density-toggle{border:1px solid #c7cbd1;background:#fff;color:#3c4043;border-radius:8px;padding:6px 10px;font-size:12px;cursor:pointer;white-space:nowrap}.density-toggle:hover{background:#f2f6fc}.message-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.message-nav{display:flex;gap:8px;white-space:nowrap}.action-btn.disabled{color:#9aa0a6;background:#f8f9fa;border-color:#e0e3e7;cursor:default}.message-content{min-width:0}.detail-layout .sidebar{position:sticky;top:60px;height:calc(100vh - 60px)}
html[data-density="compact"] .sidebar{padding:8px 6px}html[data-density="compact"] .compose-button{margin:0 6px 8px;padding:8px 14px;min-width:84px;border-radius:12px}html[data-density="compact"] .system-nav a{padding:5px 9px}html[data-density="compact"] .sidebar-title{margin:12px 9px 5px}html[data-density="compact"] .label-node{grid-template-columns:20px minmax(0,1fr)}html[data-density="compact"] .label-toggle,html[data-density="compact"] .label-toggle-spacer{width:20px;height:23px}html[data-density="compact"] .label-node .label-row{padding:4px 6px;font-size:13px}html[data-density="compact"] .message-group-title{padding:5px 10px}html[data-density="compact"] .message-row{padding:6px 10px;gap:9px}html[data-density="compact"] .msg-state{font-size:16px}html[data-density="compact"] .status-line{padding:5px 10px}html[data-density="compact"] .search{padding:9px 10px}
@media(max-width:800px){.topbar-actions{gap:8px}.density-toggle{font-size:11px;padding:5px 7px}.message-toolbar{display:block}.message-nav{margin:0 0 12px}.detail-layout .sidebar{position:static;height:auto}}

/* ver 0.7.1: unread label counts and unread-path auto expansion */
.label-row{display:flex;align-items:center;gap:8px}
.label-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.label-row.has-unread{font-weight:700;color:#202124}
.label-unread-count{margin-left:auto;flex:0 0 auto;font-size:12px;font-weight:700;color:#3c4043;padding-right:2px;font-variant-numeric:tabular-nums}
html[data-density="compact"] .label-unread-count{font-size:11px}


/* ver 0.7.3: settings, auto-read, inbox unread count */
.system-nav a{display:flex;align-items:center;gap:8px}
.system-nav a.has-unread{font-weight:700;color:#202124}
.system-unread-count{margin-left:auto;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}
.settings-page{max-width:820px;margin:0 auto;padding:24px}
.settings-card{background:#fff;border:1px solid #e0e3e7;border-radius:14px;padding:24px}
.settings-card h1{font-size:24px;margin:0 0 22px}
.settings-section{padding:18px 0;border-top:1px solid #eee}
.settings-section:first-of-type{border-top:0;padding-top:0}
.settings-section h2{font-size:16px;margin:0 0 14px}
.settings-check{display:flex;gap:12px;align-items:flex-start;padding:10px 0;cursor:pointer}
.settings-check input{margin-top:4px}
.settings-check span{display:flex;flex-direction:column;gap:4px}
.settings-check small,.settings-note{color:#5f6368;font-size:12px;line-height:1.6}
.settings-field{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 0 4px;font-size:14px}
.settings-field input[type=number]{width:80px;border:1px solid #c7cbd1;border-radius:8px;padding:8px 10px;font:inherit;text-align:right}
.settings-actions{margin-top:18px}.settings-note{margin:16px 0 0}
@media(max-width:800px){.settings-page{padding:12px}.settings-card{padding:16px}.settings-field{align-items:flex-start;flex-direction:column;gap:6px}}

/* ver 0.7.4: Gmail-like list operations, importance, detail toolbar, column resize */
.list-toolbar{min-height:44px;border-bottom:1px solid #e0e3e7;display:flex;align-items:center;gap:12px;padding:6px 12px;background:#fff;position:relative;z-index:4}
.selection-tools{display:flex;align-items:center;gap:8px;flex:0 0 auto}.master-check-wrap{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;cursor:pointer}.master-check-wrap:hover{background:#f1f3f4}.master-checkbox,.message-checkbox{width:16px;height:16px;cursor:pointer}.selection-filter{border:1px solid #c7cbd1;background:#fff;border-radius:7px;padding:6px 8px;font-size:12px;color:#3c4043}.selected-count{font-size:12px;color:#5f6368;white-space:nowrap}.bulk-action-form{margin:0;min-width:0}.bulk-actions{display:flex;align-items:center;gap:4px;flex-wrap:wrap}.bulk-actions[hidden]{display:none}.toolbar-button,.bulk-label-menu>summary{border:0;background:transparent;border-radius:7px;padding:7px 9px;font:inherit;font-size:12px;color:#3c4043;cursor:pointer;text-decoration:none;white-space:nowrap;list-style:none}.toolbar-button:hover,.bulk-label-menu>summary:hover{background:#f1f3f4}.bulk-label-menu{position:relative}.bulk-label-menu>summary::-webkit-details-marker{display:none}.bulk-label-popover{position:absolute;top:36px;right:0;width:320px;max-width:min(320px,90vw);background:#fff;border:1px solid #dadce0;border-radius:10px;box-shadow:0 8px 24px rgba(60,64,67,.22);padding:10px;z-index:30}.bulk-label-filter{width:100%;border:1px solid #c7cbd1;border-radius:7px;padding:8px 9px;font-size:13px}.bulk-label-list{max-height:260px;overflow:auto;margin-top:8px;border:1px solid #eee;border-radius:7px}.bulk-label-row{display:flex;gap:8px;align-items:flex-start;padding:7px 8px;border-bottom:1px solid #f1f3f4;font-size:12px}.bulk-label-row:last-child{border-bottom:0}.bulk-label-row:hover{background:#f8faff}.bulk-label-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:10px}.bulk-label-actions .btn{padding:7px 12px;font-size:12px}.toolbar-separator{width:1px;height:22px;background:#dadce0;display:inline-block;margin:0 3px;flex:0 0 1px}
.message-list{--sender-width:250px;min-width:0}.message-row{display:grid;grid-template-columns:28px 28px 28px var(--sender-width) 5px minmax(160px,1fr) 76px;gap:3px;align-items:center;min-height:38px;padding:0 10px;border-bottom:1px solid #eee;font-size:14px;cursor:pointer}.message-row:hover{background:#f7f9fc;box-shadow:inset 3px 0 #0b57d0}.message-row.is-selected{background:#e8f0fe}.message-row.is-selected:hover{background:#dfe9fb}.msg-select,.msg-star,.msg-important{display:grid;place-items:center;min-width:0}.quick-action-form{margin:0;display:block}.row-icon-button{width:28px;height:28px;border:0;background:transparent;border-radius:50%;display:grid;place-items:center;padding:0;cursor:pointer;color:#9aa0a6;font-size:16px;line-height:1}.row-icon-button:hover{background:#e9edf3;color:#5f6368}.row-icon-button.is-active{color:#f4b400}.row-icon-button.is-active.important{color:#e7a500}.msg-link{text-decoration:none;min-width:0;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:9px 2px}.msg-from{font-weight:400}.msg-main{display:block}.msg-main strong{font-weight:400;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-row.is-unread .msg-from,.message-row.is-unread .msg-main strong{font-weight:700;color:#202124}.msg-date{font-size:12px;color:#5f6368;text-align:right}.sender-resize-handle{align-self:stretch;position:relative;cursor:col-resize;touch-action:none}.sender-resize-handle::after{content:"";position:absolute;top:7px;bottom:7px;left:2px;width:1px;background:transparent}.sender-resize-handle:hover::after,.is-resizing-columns .sender-resize-handle::after{background:#b8c0cc}.is-resizing-columns{cursor:col-resize!important;user-select:none}.is-resizing-columns *{cursor:col-resize!important}.message-group-title{font-size:13px}
html[data-density="compact"] .message-row{min-height:30px;padding:0 8px;gap:2px;font-size:13px;grid-template-columns:26px 26px 26px var(--sender-width) 5px minmax(150px,1fr) 70px}html[data-density="compact"] .msg-link{padding:5px 2px}html[data-density="compact"] .row-icon-button{width:25px;height:25px;font-size:15px}html[data-density="compact"] .list-toolbar{min-height:38px;padding:4px 9px}
.gmail-detail-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;min-height:42px}.detail-toolbar-left{display:flex;align-items:center;gap:3px;flex-wrap:wrap}.detail-action-form{margin:0}.detail-toolbar-button{min-height:34px;border:0;background:transparent;color:#3c4043;border-radius:7px;padding:7px 10px;font-size:12px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap}.detail-toolbar-button:hover{background:#f1f3f4}.detail-toolbar-button.disabled{color:#b0b4ba;cursor:default}.detail-toolbar-button.disabled:hover{background:transparent}.detail-toolbar-button.is-active-star{color:#f4b400;font-size:17px}.detail-toolbar-button.is-active-important{color:#e7a500;font-size:17px}.detail-back{font-size:18px;min-width:34px;padding:6px}.message-heading-row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.message-heading-row h1{min-width:0;margin-bottom:14px}.message-heading-row .reply-btn{flex:0 0 auto}.label-editor:target{outline:2px solid #d2e3fc;outline-offset:2px}.message-nav{display:flex;gap:4px;white-space:nowrap}
.settings-field select{border:1px solid #c7cbd1;border-radius:8px;padding:8px 10px;font:inherit;background:#fff}.settings-field.no-border{border-top:0}.settings-field>span:first-child{display:flex;flex-direction:column;gap:4px}.settings-field small{color:#5f6368;font-size:12px;line-height:1.5}.settings-help{color:#5f6368;font-size:12px;line-height:1.6;margin:8px 0 0}
@media(max-width:800px){.list-toolbar{overflow-x:auto;align-items:flex-start}.bulk-actions{flex-wrap:nowrap}.bulk-label-popover{position:fixed;left:12px;right:12px;top:120px;width:auto;max-width:none}.message-row{grid-template-columns:28px 28px 28px minmax(0,1fr) 68px;grid-template-rows:auto auto;gap:1px 3px;padding:4px 8px;min-height:52px}.msg-select{grid-column:1;grid-row:1 / span 2}.msg-star{grid-column:2;grid-row:1 / span 2}.msg-important{grid-column:3;grid-row:1 / span 2}.msg-from{grid-column:4;grid-row:1;padding:3px 2px}.msg-main{grid-column:4 / span 2;grid-row:2;padding:3px 2px}.msg-date{grid-column:5;grid-row:1;padding:3px 2px}.sender-resize-handle{display:none}.gmail-detail-toolbar{align-items:flex-start;overflow-x:auto}.detail-toolbar-left{flex-wrap:nowrap}.message-heading-row{display:block}.message-heading-row .reply-btn{margin-bottom:12px}.message-nav{flex:0 0 auto}html[data-density="compact"] .message-row{grid-template-columns:26px 26px 26px minmax(0,1fr) 66px;grid-template-rows:auto auto}}


/* ver 0.8.0 thread view */
.thread-count{font-size:11px;color:#5f6368;font-weight:400;margin-left:4px}
.message-row.is-unread .thread-count{font-weight:700;color:#3c4043}
.thread-heading-count{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:24px;padding:0 7px;margin-left:6px;border-radius:12px;background:#f1f3f4;color:#5f6368;font-size:12px;font-weight:600;vertical-align:middle}
.thread-label-summary{display:flex;gap:10px;align-items:flex-start;padding:0 0 12px;border-bottom:1px solid #eee;font-size:12px;color:#5f6368}
.thread-label-summary strong{color:#3c4043;flex:0 0 auto}
.thread-stack{display:flex;flex-direction:column;gap:10px;margin-top:14px}
.thread-message{border:1px solid #dadce0;border-radius:10px;background:#fff;overflow:hidden}
.thread-message[open]{box-shadow:0 1px 2px rgba(60,64,67,.08)}
.thread-message.is-unread{border-color:#aecbfa}
.thread-message-summary{display:grid;grid-template-columns:minmax(160px,1fr) minmax(120px,2fr) auto;gap:12px;align-items:center;padding:12px 14px;cursor:pointer;list-style:none;background:#fafbfc;font-size:13px}
.thread-message-summary::-webkit-details-marker{display:none}
.thread-message-summary::before{content:"▶";font-size:10px;color:#5f6368;margin-right:2px}
.thread-message[open]>.thread-message-summary::before{content:"▼"}
.thread-message-summary{grid-template-columns:12px minmax(160px,1fr) minmax(120px,2fr) auto}
.thread-message.is-unread>.thread-message-summary{font-weight:700;background:#f7faff}
.thread-sender,.thread-recipient{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.thread-recipient{color:#5f6368;font-weight:400}
.thread-date{font-size:12px;color:#5f6368;white-space:nowrap;font-weight:400}
.thread-message-content{padding:0 16px 16px}
.thread-headers{display:grid;grid-template-columns:54px minmax(0,1fr);gap:4px 10px;margin:12px 0 0;padding-bottom:10px;border-bottom:1px solid #eee;font-size:12px;color:#5f6368}
.thread-headers dt{font-weight:700}.thread-headers dd{margin:0;overflow-wrap:anywhere}
.thread-message-content .mail-body{padding:14px 0 2px;margin:0}
.thread-reply-row{margin-top:14px;padding-top:12px;border-top:1px solid #eee}
html[data-density="compact"] .thread-stack{gap:6px}
html[data-density="compact"] .thread-message-summary{padding:8px 10px;font-size:12px}
html[data-density="compact"] .thread-message-content{padding:0 12px 12px}
@media(max-width:800px){
  .thread-message-summary{grid-template-columns:12px minmax(0,1fr) auto;gap:6px}
  .thread-recipient{display:none}
  .thread-message-content{padding:0 12px 12px}
  .thread-headers{grid-template-columns:44px minmax(0,1fr)}
}

/* ver 0.8.1: Gmail-like sender display and thread pagination */
.msg-from{display:flex;align-items:center;gap:0;min-width:0;overflow:hidden;white-space:nowrap}
.msg-from .sender-name{display:block;min-width:0;flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.msg-from .thread-count{flex:0 0 auto;margin-left:6px;min-width:1.5em;text-align:right}
.list-pagination{margin-left:auto;display:flex;align-items:center;gap:3px;flex:0 0 auto;white-space:nowrap;color:#5f6368;font-size:12px}
.pagination-range{padding:0 7px;font-variant-numeric:tabular-nums}
.pagination-button{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;text-decoration:none;color:#3c4043;font-size:22px;line-height:1}
.pagination-button:hover{background:#f1f3f4}
.pagination-button.disabled{color:#bdc1c6;pointer-events:none}
@media(max-width:800px){
  .list-toolbar{flex-wrap:nowrap}
  .list-pagination{position:sticky;right:0;background:#fff;padding-left:6px}
  .pagination-range{display:none}
}

/* ver 0.8.3: Gmail-like daily-operation UI */
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.ui-icon{width:18px;height:18px;display:block;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.ui-icon circle{fill:currentColor;stroke:none}
.system-nav a{display:flex;align-items:center;justify-content:space-between;gap:8px}.system-nav a.has-unread{font-weight:700}.system-unread-count{margin-left:auto;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}
.toolbar-icon-link{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;color:#5f6368;text-decoration:none;flex:0 0 32px}.toolbar-icon-link:hover{background:#f1f3f4;color:#202124}
.message-row{position:relative;background:#f5f7f9;font-size:14px}.message-row.is-unread{background:#fff}.message-row:hover{background:#eef3fb}.message-row.is-unread:hover{background:#f7faff}.message-row.is-selected,.message-row.is-unread.is-selected{background:#e8f0fe}.message-row.is-selected:hover,.message-row.is-unread.is-selected:hover{background:#dfe9fb}
.msg-main{display:flex;align-items:center;gap:6px;min-width:0}.msg-main strong{flex:1 1 auto;min-width:0}.msg-label-chips{display:flex;align-items:center;gap:4px;flex:0 1 auto;max-width:42%;overflow:hidden}.msg-label-chip{display:inline-flex;align-items:center;max-width:130px;height:19px;padding:0 6px;border-radius:4px;background:#e4e7eb;color:#4a4f55;font-size:10px;font-weight:600;line-height:19px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:middle}.message-row.is-unread .msg-label-chip{background:#e9eef6;color:#3c4043}
.msg-date-cell{position:relative;display:flex;align-items:center;justify-content:flex-end;min-width:0;height:100%}.msg-date-cell .msg-date{width:100%}.row-hover-actions{display:none;align-items:center;justify-content:flex-end;gap:0;position:absolute;right:0;top:50%;transform:translateY(-50%);padding-left:8px;background:inherit;z-index:3}.message-row:hover .row-hover-actions{display:flex}.message-row:hover .msg-date{visibility:hidden}.row-hover-actions .row-icon-button{width:30px;height:30px;color:#5f6368}.row-hover-actions .ui-icon{width:17px;height:17px}
.mail-context-menu{position:fixed;z-index:1000;width:230px;padding:6px 0;border:1px solid #dadce0;border-radius:8px;background:#fff;box-shadow:0 8px 24px rgba(60,64,67,.25)}.mail-context-menu[hidden]{display:none}.mail-context-menu button{display:block;width:100%;border:0;background:transparent;padding:9px 16px;text-align:left;font:inherit;font-size:13px;color:#202124;cursor:pointer}.mail-context-menu button:hover{background:#f1f3f4}.mail-context-menu button:last-child{color:#b3261e}
.detail-toolbar-button .ui-icon{width:19px;height:19px}.detail-back .ui-icon{width:21px;height:21px}.thread-label-chips{display:flex;flex-wrap:wrap;gap:5px;align-items:center}.thread-no-user-label{color:#9aa0a6}.thread-sender{font-weight:600}.thread-message.is-unread>.thread-message-summary .thread-sender{font-weight:700}
html[data-density="compact"] .message-row{font-size:13px}.message-row .msg-date{font-size:12px}
@media(max-width:800px){.msg-label-chips{max-width:48%}.msg-label-chip{max-width:90px}.row-hover-actions{display:none!important}.message-row:hover .msg-date{visibility:visible}.mail-context-menu{width:min(230px,calc(100vw - 24px))}}


/* ver 0.8.4: Gmail-compatible compose/reply flow */
.compose-subject-control{display:flex;align-items:center;gap:8px;min-width:0}.compose-subject-control input{min-width:0;flex:1 1 auto}.compose-inline-link{flex:0 0 auto;border:0;background:transparent;color:#0b57d0;padding:7px 4px;cursor:pointer;font-size:12px;white-space:nowrap}.compose-inline-link:hover{text-decoration:underline}.message-heading-actions,.thread-reply-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.message-heading-actions{justify-content:flex-end}.thread-reply-row .action-btn{min-width:74px;text-align:center;text-decoration:none}.compose-card .btn.secondary{background:#f1f3f4;color:#3c4043}.app-flash{margin:10px 14px}
@media(max-width:800px){.compose-subject-control{align-items:stretch;flex-direction:column}.compose-inline-link{align-self:flex-start}.message-heading-actions{justify-content:flex-start;margin-bottom:12px}}

.reply-trimmed-wrap{margin:0 0 8px 104px}.reply-trimmed-toggle{border:0;background:transparent;color:#5f6368;font-size:22px;line-height:1;padding:0 6px 6px;cursor:pointer;border-radius:4px}.reply-trimmed-toggle:hover{background:#f1f3f4}.reply-quote-preview{margin:2px 0 10px;border-left:3px solid #dadce0;padding:8px 12px;background:#fafafa;color:#5f6368;max-height:260px;overflow:auto}.reply-quote-preview pre{margin:0;font:12px/1.55 ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;white-space:pre-wrap;overflow-wrap:anywhere}.reply-quote-preview[hidden]{display:none}@media(max-width:800px){.reply-trimmed-wrap{margin-left:0}}

/* ver 0.8.7: Japanese UI font */
html,body,button,input,select,textarea{font-family:"Meiryo","メイリオ","Yu Gothic UI","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif}
.mail-body{font-family:"Meiryo","メイリオ","Yu Gothic UI","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif}

/* ver 0.8.9: signatures + recipient autocomplete */
.signature-setting{padding:14px 0;border-top:1px solid #eee}.signature-setting:first-of-type{border-top:0;padding-top:0}.signature-setting-title{display:flex;align-items:baseline;gap:10px;margin-bottom:8px}.signature-setting-title span{color:#5f6368;font-size:12px}.signature-setting textarea{width:100%;box-sizing:border-box;border:1px solid #c7cbd1;border-radius:8px;padding:10px 12px;font:inherit;line-height:1.5;resize:vertical}.signature-options{display:flex;gap:18px;flex-wrap:wrap;margin-top:8px;font-size:13px}.recipient-input-wrap{position:relative;display:block;min-width:0;width:100%}.recipient-input-wrap>input{width:100%}.recipient-suggestions{position:absolute;left:0;right:0;top:calc(100% + 4px);z-index:50;background:#fff;border:1px solid #dadce0;border-radius:8px;box-shadow:0 4px 12px rgba(60,64,67,.22);max-height:260px;overflow:auto;padding:4px}.recipient-suggestions[hidden]{display:none}.recipient-suggestion{display:block;width:100%;border:0;background:transparent;text-align:left;padding:9px 10px;border-radius:6px;font:inherit;font-size:13px;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.recipient-suggestion:hover,.recipient-suggestion.active{background:#f1f3f4}
@media(max-width:800px){.signature-options{flex-direction:column;gap:8px}.signature-setting-title{align-items:flex-start;flex-direction:column;gap:3px}}