:root{--bg: #fafaf9;--fg: #1f2937;--muted: #6b7280;--accent: #1d4ed8;--border: #e5e7eb;--unread: #111827;--hover: #f3f4f6;--selected: #dbeafe;--danger-bg: #fee2e2;--danger-fg: #991b1b}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans SC,sans-serif;color:var(--fg);background:var(--bg);font-size:14px;-webkit-tap-highlight-color:transparent}button{cursor:pointer;border:1px solid var(--border);background:#fff;padding:6px 12px;border-radius:6px;font-size:13px;font-family:inherit}button:hover{background:var(--hover)}.icon-btn{padding:4px 10px;font-size:12px}.login{display:grid;place-items:center;height:100%;padding:16px}.login form{display:flex;flex-direction:column;gap:12px;width:min(360px,100%);padding:24px;border:1px solid var(--border);border-radius:10px;background:#fff}.login h1{margin:0 0 8px;color:var(--accent)}.login label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted)}.login input{padding:10px 12px;border:1px solid var(--border);border-radius:6px;font-size:16px}.login .error{color:var(--danger-fg);font-size:12px}.inbox{display:grid;grid-template-columns:260px 1fr 440px;height:100%}.sidebar{border-right:1px solid var(--border);overflow-y:auto;background:#fff}.sidebar header{padding:12px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;border-bottom:1px solid var(--border)}.sidebar header h2{margin:0 auto 0 0;font-size:15px;color:var(--accent)}.sidebar .search-form{display:flex;gap:6px;padding:10px 12px;border-bottom:1px solid var(--border)}.sidebar .search-form input{flex:1;padding:8px 10px;font-size:14px;border:1px solid var(--border);border-radius:6px;-webkit-appearance:none}.sidebar .search-form button{width:40px}.sidebar ul{list-style:none;margin:0;padding:0}.sidebar li{padding:10px 12px;cursor:pointer;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:2px}.sidebar li:hover{background:var(--hover)}.sidebar li.active{background:var(--selected)}.sidebar li.special{background:#fff;border-bottom:2px solid var(--accent)}.sidebar li.special.active{background:var(--selected)}.sidebar .name-row{display:flex;align-items:center;gap:6px;min-width:0}.sidebar .name{flex:1;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.sidebar .rename-btn{padding:2px 6px;font-size:12px;line-height:1;background:transparent;border:1px solid transparent;color:var(--muted);opacity:0;transition:opacity .1s}.sidebar li:hover .rename-btn,.sidebar li.active .rename-btn{opacity:1}.sidebar .rename-btn:hover{background:#fff;border-color:var(--border);color:var(--fg)}.sidebar .email{color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:768px){.sidebar .rename-btn{opacity:1}}.mail-list{overflow-y:auto;border-right:1px solid var(--border);background:#fff;position:relative}.mail-list .view-header{position:sticky;top:0;z-index:2;background:#fff;display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--border)}.mail-list .drawer-toggle{display:none;padding:6px 10px;font-size:18px;line-height:1}.mail-list .view-label{flex:1;font-weight:600;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mail-list .view-count{color:var(--muted);font-size:12px}.mail-list .error{margin:12px;padding:10px 12px;background:var(--danger-bg);color:var(--danger-fg);border-radius:6px;font-size:13px}.mail-list ul.rows{list-style:none;margin:0;padding:0}.mail-list .row{cursor:pointer;padding:12px 16px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:4px}.mail-list .row:hover{background:var(--hover)}.mail-list .row.unread .row-top .from,.mail-list .row.unread .row-subj{font-weight:600;color:var(--unread)}.mail-list .row.unread:before{content:"";position:absolute;left:6px;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:6px}.mail-list .row{position:relative;padding-left:22px}.mail-list .row-top{display:flex;align-items:baseline;gap:8px}.mail-list .row-top .from{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px}.mail-list .row-top .from-addr{color:var(--muted);font-size:12px;font-weight:400}.mail-list .row-top .date{color:var(--muted);font-size:12px;white-space:nowrap}.mail-list .row-subj{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mail-list .row-meta{display:flex;gap:6px;font-size:12px;color:var(--muted)}.mail-list .row-meta .acct{background:#f3f4f6;padding:1px 6px;border-radius:10px;font-size:11px;white-space:nowrap;max-width:180px;overflow:hidden;text-overflow:ellipsis}.mail-list .row-meta .preview{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mail-list .sentinel{list-style:none;padding:16px;text-align:center;color:var(--muted);font-size:12px}.mail-list .row{touch-action:pan-y;will-change:transform}.mail-list .empty-state{padding:48px 24px;color:var(--muted);text-align:center;font-size:14px}.mail-list .empty-state .hint{margin-top:8px;font-size:12px;opacity:.7}.mail-list .skeleton{padding:8px}.mail-list .skeleton-row{height:64px;border-radius:6px;margin:8px 0;background:linear-gradient(90deg,#f3f4f6,#e5e7eb,#f3f4f6);background-size:200% 100%;animation:shimmer 1.2s linear infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.preview-pane{padding:16px;position:relative;overflow-y:auto;background:#fff}.preview-pane .close{position:absolute;top:10px;right:10px;width:36px;height:36px;border-radius:50%;font-size:20px;line-height:1;display:grid;place-items:center}.preview-pane h3{margin:0 36px 12px 0;font-size:17px;line-height:1.3}.preview-pane .hdr{display:flex;flex-direction:column;gap:4px;margin-bottom:14px;padding:10px 12px;background:#f9fafb;border:1px solid var(--border);border-radius:6px;font-size:13px}.preview-pane .hdr-row{display:flex;gap:8px;align-items:baseline;flex-wrap:wrap}.preview-pane .hdr-k{color:var(--muted);font-size:12px;min-width:48px}.preview-pane .hdr-v{flex:1;word-break:break-all}.preview-pane .hdr-v .addr{color:var(--muted);font-size:12px}.preview-pane .hdr-v .folder-tag{margin-left:8px;background:#e5e7eb;color:var(--muted);padding:1px 6px;border-radius:10px;font-size:11px;display:inline-block}.preview-pane .body-preview,.preview-pane .body-text{background:#fff;padding:12px;border-radius:6px;white-space:pre-wrap;word-wrap:break-word;font-family:inherit;border:1px solid var(--border)}.preview-pane .body-iframe{width:100%;min-height:60vh;border:1px solid var(--border);border-radius:6px;background:#fff}.preview-pane .error{padding:12px;background:var(--danger-bg);color:var(--danger-fg);border-radius:6px;font-size:13px}.preview-pane .hint{color:var(--muted);font-size:12px}.thread-siblings{margin-top:16px;border-top:1px solid var(--border);padding-top:12px}.thread-siblings .thread-title{font-size:12px;color:var(--muted);margin-bottom:8px}.thread-siblings ul{list-style:none;margin:0;padding:0}.thread-siblings li{padding:8px 10px;cursor:pointer;border:1px solid var(--border);border-radius:6px;margin-bottom:6px;background:#fafaf9}.thread-siblings li:hover{background:var(--hover)}.thread-siblings .t-top{display:flex;justify-content:space-between;gap:8px;font-size:12px}.thread-siblings .t-top .from{font-weight:500;color:var(--fg);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.thread-siblings .t-top .date{color:var(--muted);white-space:nowrap}.thread-siblings .t-subj{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.loading{display:grid;place-items:center;height:100%;color:var(--muted)}@media(max-width:768px){.inbox{grid-template-columns:1fr;grid-template-rows:1fr}.sidebar{position:fixed;inset:0 30% 0 0;transform:translate(-100%);transition:transform .2s ease-out;z-index:20;box-shadow:2px 0 12px #00000026}.sidebar.open{transform:translate(0)}.mail-list .drawer-toggle{display:inline-block}.mail-list{border-right:none}.preview-pane{position:fixed;inset:0;z-index:30}}