:root{--bg:#f4f5f7;--surface:#fff;--border:#e2e4e8;--text:#1a1d21;--text-muted:#6b7280;--accent:#4f46e5;--accent-hover:#4338ca;--danger:#dc2626;--unread-bg:#eef2ff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-size:14px;line-height:1.5}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em}.muted{color:var(--text-muted)}.topbar{background:var(--surface);border-bottom:1px solid var(--border);z-index:10;position:sticky;top:0}.topbar-inner{align-items:center;gap:28px;max-width:1200px;height:56px;margin:0 auto;padding:0 20px;display:flex}.brand{white-space:nowrap;font-size:15px;font-weight:700}.nav{gap:4px;display:flex}.nav a{color:var(--text-muted);border-radius:6px;padding:6px 12px;font-weight:500;text-decoration:none}.nav a:hover{background:var(--bg);color:var(--text)}.nav a.active{background:var(--unread-bg);color:var(--accent)}.topbar-right{align-items:center;gap:12px;margin-left:auto;display:flex}.user-email{color:var(--text-muted);font-size:13px}.content{max-width:1200px;margin:0 auto;padding:24px 20px 60px}.btn{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:6px;align-items:center;gap:6px;padding:7px 14px;font-size:13px;font-weight:500;text-decoration:none;display:inline-flex}.btn:hover:not(:disabled){background:#fafafa;border-color:#c9ccd3}.btn:disabled{opacity:.5;cursor:default}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.btn-ghost{background:0 0;border-color:#0000}.btn-danger{color:var(--danger)}.btn-sm{padding:4px 10px;font-size:12px}input,select{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:6px;padding:8px 10px;font-family:inherit;font-size:14px}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:#0000}.login-wrap{justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:14px;width:100%;max-width:380px;padding:32px;display:flex}.login-card h1{text-align:center;margin:0;font-size:20px}.login-card .muted{text-align:center;margin:0 0 8px}.login-card label{flex-direction:column;gap:5px;font-size:13px;font-weight:500;display:flex}.toolbar{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px;display:flex}.search-form{flex:1;gap:8px;min-width:260px;display:flex}.search-form input{flex:1}.total-count{white-space:nowrap;margin-left:auto}.email-table{border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:8px;width:100%;overflow:hidden}.email-table th{text-align:left;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);border-bottom:1px solid var(--border);background:#fafbfc;padding:10px 12px;font-size:12px}.email-table td{border-bottom:1px solid var(--border);vertical-align:middle;padding:10px 12px}.email-table tbody tr:last-child td{border-bottom:none}.email-table tbody tr{cursor:pointer}.email-table tbody tr:hover{background:#f8f9fb}tr.unread{background:var(--unread-bg);font-weight:600}tr.unread:hover{background:#e3e8ff}.dot{background:var(--accent);border-radius:50%;width:8px;height:8px;display:inline-block}.cell-from{text-overflow:ellipsis;white-space:nowrap;max-width:220px;overflow:hidden}.cell-subject{text-overflow:ellipsis;white-space:nowrap;max-width:420px;overflow:hidden}.cell-subject .snippet{color:var(--text-muted);font-weight:400}.cell-to{text-overflow:ellipsis;white-space:nowrap;max-width:200px;color:var(--text-muted);overflow:hidden}.cell-size,.cell-date{white-space:nowrap;color:var(--text-muted);font-size:13px}.pagination{justify-content:center;align-items:center;gap:16px;margin-top:16px;display:flex}.email-actions{gap:8px;margin-bottom:16px;display:flex}.spacer{flex:1}.email-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:24px}.email-subject{margin:0 0 16px;font-size:20px}.email-meta{border-bottom:1px solid var(--border);grid-template-columns:100px 1fr;gap:4px 12px;margin:0 0 16px;padding-bottom:16px;display:grid}.email-meta dt{color:var(--text-muted);font-size:13px}.email-meta dd{word-break:break-word;margin:0}.attachments{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.attachment-chip{border:1px solid var(--border);background:var(--bg);cursor:pointer;border-radius:999px;padding:5px 12px;font-size:13px}.attachment-chip:hover{border-color:var(--accent)}.tabs{gap:4px;margin-bottom:12px;display:flex}.tab{cursor:pointer;color:var(--text-muted);background:0 0;border:none;border-radius:6px;padding:6px 12px;font-size:13px;font-weight:500}.tab.active{background:var(--unread-bg);color:var(--accent)}.html-frame{border:1px solid var(--border);background:#fff;border-radius:6px;width:100%;min-height:480px}.text-body{white-space:pre-wrap;word-break:break-word;background:var(--bg);border:1px solid var(--border);border-radius:6px;margin:0;padding:16px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}.text-body a{color:var(--accent)}.page-title{margin:0 0 4px;font-size:20px}.address-form{flex-wrap:wrap;gap:8px;margin:16px 0;display:flex}.address-form input[type=email]{flex:1;min-width:240px}.address-form input[type=text]{flex:1;min-width:180px}.error-box{color:var(--danger);background:#fef2f2;border:1px solid #fecaca;border-radius:6px;margin-bottom:12px;padding:10px 12px}.empty-state{background:var(--surface);border:1px dashed var(--border);text-align:center;border-radius:8px;padding:40px}