:root{color-scheme:light;--color-bg: #f8fafd;--color-surface: #ffffff;--color-surface-raised: #f1f5fa;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-muted: #64748b;--color-text-faint: #94a3b8;--color-accent: #2478f2;--color-accent-strong: #1554cc;--color-accent-soft: #eaf5ff;--color-danger: #dc3545;--color-success: #168a56;--color-warning: #af6b00;--brand-gradient: linear-gradient(135deg, #2478f2 0%, #35cfe8 65%, #8b78f5 100%);--shadow-menu: 0 10px 28px rgb(30 41 59 / 12%);--focus-ring: 0 0 0 3px rgb(36 120 242 / 28%)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--color-bg);color:var(--color-text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:13px;line-height:1.45}a,button,input,select,textarea{color:inherit;font:inherit}a{color:var(--color-accent-strong)}button{cursor:pointer}button:disabled{cursor:not-allowed}:focus-visible{border-radius:6px;box-shadow:var(--focus-ring);outline:none}.button{align-items:center;background:var(--color-accent);border:1px solid var(--color-accent);border-radius:8px;color:#fff;display:inline-flex;font-size:12px;font-weight:600;gap:6px;justify-content:center;min-height:31px;padding:5px 10px;text-decoration:none;transition:background-color .12s ease,border-color .12s ease}.button:hover:not(:disabled){background:var(--color-accent-strong);border-color:var(--color-accent-strong)}.button:disabled{opacity:.55}.button-secondary{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}.button-secondary:hover:not(:disabled){background:var(--color-surface-raised);border-color:var(--color-border)}.button-secondary.message-body-format-selected,.button-secondary.message-body-format-selected:hover:not(:disabled){background:var(--color-accent);border-color:var(--color-accent);color:#fff}.field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}.field label{font-size:12px;font-weight:600}.field input{background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;min-height:34px;padding:6px 9px}.field input:focus{border-color:var(--color-accent);outline:none}.field-hint{color:var(--color-text-muted);font-size:12px}.state{align-items:center;color:var(--color-text-muted);display:flex;flex-direction:column;gap:8px;justify-content:center;padding:32px 16px;text-align:center}.state-error{color:var(--color-danger)}.spinner{animation:spin .8s linear infinite;border:2px solid var(--color-border);border-radius:50%;border-top-color:var(--color-accent);height:18px;width:18px}@keyframes spin{to{transform:rotate(360deg)}}.badge{align-items:center;background:var(--color-surface-raised);border:1px solid transparent;border-radius:999px;display:inline-flex;font-size:11px;font-weight:600;line-height:16px;padding:0 6px;white-space:nowrap}.badge-success{background:color-mix(in srgb,var(--color-success) 10%,var(--color-surface));color:var(--color-success)}.badge-warning{background:color-mix(in srgb,var(--color-warning) 12%,var(--color-surface));color:var(--color-warning)}.badge-danger{background:color-mix(in srgb,var(--color-danger) 10%,var(--color-surface));color:var(--color-danger)}.auth-screen{align-items:center;background:radial-gradient(circle at top right,rgb(53 207 232 / 15%),transparent 32rem),var(--color-bg);display:flex;justify-content:center;min-height:100vh;padding:24px}.auth-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;box-shadow:0 12px 36px #1e293b14;max-width:400px;padding:28px;width:100%}.auth-brand{align-items:center;display:flex;gap:10px;margin-bottom:4px}.auth-brand h1{font-size:20px;margin:0}.auth-brand-icon{border-radius:9px;height:34px;width:34px}.auth-card-subtitle{color:var(--color-text-muted);margin:4px 0 20px 44px}.recovery-codes{background:var(--color-surface-raised);border:1px solid var(--color-border);border-radius:8px;display:grid;font-family:Cascadia Mono,Consolas,monospace;gap:6px;grid-template-columns:1fr 1fr;margin:12px 0;padding:12px}.checkbox-field{align-items:flex-start;display:flex;gap:8px;margin:12px 0}.checkbox-field input{margin-top:3px}.app-shell{display:flex;flex-direction:column;height:100vh;min-width:0}.app-shell-header{align-items:center;background:var(--color-surface);border-bottom:1px solid var(--color-border);display:flex;justify-content:space-between;min-height:52px;padding:8px 12px}.app-brand{align-items:center;display:flex;font-size:14px;gap:8px;min-width:0}.app-brand-icon{border-radius:7px;height:28px;width:28px}.app-header-actions{align-items:center;display:flex;gap:6px}.app-header-username{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-shell-panes{display:grid;flex:1;grid-template-columns:var(--sidebar-width, 260px) 1px var(--list-width, 320px) 1px minmax(0,1fr);min-height:0}.pane{background:var(--color-surface);min-width:0;overflow-y:auto}.pane-list{background:var(--color-bg)}.pane-reader{background:var(--color-surface)}.pane-resize-handle{background:var(--color-border);border:0;cursor:col-resize;padding:0;position:relative;touch-action:none;width:1px}.pane-resize-handle:before{content:"";top:0;right:-4px;bottom:0;left:-4px;position:absolute}.pane-resize-handle:hover,.pane-resize-handle:focus-visible{background:var(--color-accent)}body.is-resizing-pane{cursor:col-resize;-webkit-user-select:none;user-select:none}.account-sidebar{display:flex;flex-direction:column;gap:8px;height:100%;padding:10px 8px}.account-sidebar-toolbar{align-items:center;display:flex;gap:6px;padding:0 4px}.account-list{display:flex;flex:1;flex-direction:column;list-style:none;margin:0;overflow-y:auto;padding:0}.account-row{align-items:center;border-radius:8px;display:flex;gap:2px;min-height:34px}.account-row:hover{background:var(--color-surface-raised)}.account-row-selected{background:var(--color-accent-soft);color:var(--color-accent-strong)}.account-row-select{align-items:center;background:none;border:0;display:flex;flex:1;gap:6px;min-width:0;padding:6px 4px 6px 8px;text-align:left}.account-row-label{font-size:12px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-row-unread-count{display:inline-flex;flex:0 0 auto}.menu-trigger{background:none;border:1px solid transparent;border-radius:6px;color:var(--color-text-muted);line-height:1;padding:5px 7px}.menu-trigger:hover,.menu-trigger[aria-expanded=true]{background:var(--color-surface-raised);color:var(--color-text)}.menu-popover{background:var(--color-surface);border:1px solid var(--color-border);border-radius:10px;box-shadow:var(--shadow-menu);display:flex;flex-direction:column;max-height:calc(100vh - 16px);min-width:224px;overflow-y:auto;padding:4px;position:fixed;z-index:10}.account-menu-info{border-bottom:1px solid var(--color-border);display:flex;flex-direction:column;gap:4px;margin-bottom:4px;overflow-wrap:anywhere;padding:7px 8px 9px}.account-menu-item{align-items:center;background:none;border:0;border-radius:6px;display:flex;gap:8px;padding:7px 8px;text-align:left;width:100%}.account-menu-item:hover{background:var(--color-surface-raised)}.account-menu-item:disabled{opacity:.55}.account-menu-item-danger{color:var(--color-danger)}.account-menu-toggle input{margin:0}.modal-backdrop{align-items:center;background:#0f172a7a;display:flex;top:0;right:0;bottom:0;left:0;justify-content:center;padding:16px;position:fixed;z-index:100}.modal-dialog{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;box-shadow:var(--shadow-menu);max-height:90vh;max-width:480px;overflow-y:auto;padding:20px;width:100%}.modal-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:12px}.modal-header h2{font-size:17px;margin:0}.import-preview-table{border-collapse:collapse;font-size:12px;width:100%}.import-preview-table th,.import-preview-table td{border-bottom:1px solid var(--color-border);padding:6px 8px;text-align:left}.message-list-pane{display:flex;flex-direction:column;height:100%}.message-list{display:flex;flex:1;flex-direction:column;gap:2px;list-style:none;margin:0;overflow-y:auto;padding:6px}.message-row{background:transparent;border-radius:8px;min-height:64px}.message-row:hover{background:var(--color-surface-raised)}.message-row-selected{background:var(--color-accent-soft)}.message-row-select{align-items:stretch;background:none;border:0;display:flex;flex-direction:column;gap:5px;padding:8px 9px;text-align:left;width:100%}.message-row-main{display:flex;flex-direction:column;gap:2px;min-width:0}.message-row-sender{color:var(--color-text-muted);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-row-subject{font-size:13px;font-weight:400;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-row-unread .message-row-sender,.message-row-unread .message-row-subject{color:var(--color-text);font-weight:600}.message-row-meta{align-items:center;color:var(--color-text-muted);display:flex;font-size:11px;gap:6px;justify-content:flex-end}.message-row-meta .field-hint{font-size:11px;margin-left:auto}.message-list-footer{border-top:1px solid var(--color-border);display:flex;justify-content:center;padding:8px}.message-reader{display:flex;flex-direction:column;gap:12px;height:100%;min-width:0;padding:16px}.message-reader-header{border-bottom:1px solid var(--color-border);display:flex;flex-direction:column;gap:8px;padding-bottom:12px}.message-reader-subject{font-size:17px;font-weight:600;line-height:1.35;margin:0}.message-reader-meta{display:flex;flex-direction:column;font-size:12px;gap:3px;margin:0}.message-reader-meta div{display:flex;gap:6px;min-width:0}.message-reader-meta dt{color:var(--color-text-muted);font-weight:500;min-width:34px}.message-reader-meta dd{margin:0;overflow-wrap:anywhere}.message-reader-toolbar{align-items:center;display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between}.message-reader-actions{display:flex;gap:6px;margin-left:auto}.message-attachments{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:0}.message-attachment-chip{align-items:center;background:var(--color-surface-raised);border:1px solid var(--color-border);border-radius:999px;display:flex;font-size:12px;gap:6px;padding:4px 9px}.message-body{display:flex;flex:1;flex-direction:column;gap:8px;min-height:0}.message-body-toolbar{display:flex;gap:6px}.message-body-notice{align-items:center;background:var(--color-accent-soft);border:1px solid color-mix(in srgb,var(--color-accent) 25%,var(--color-border));border-radius:8px;display:flex;flex-wrap:wrap;gap:8px;padding:7px 9px}.message-body-frame{background:#fff;border:1px solid var(--color-border);border-radius:8px;flex:1;min-height:320px;width:100%}.message-body-text{flex:1;font-family:Cascadia Mono,Consolas,monospace;font-size:13px;margin:0;overflow:auto;white-space:pre-wrap;word-wrap:break-word}@media (max-width: 900px){.app-shell{height:auto;min-height:100vh}.app-shell-panes{display:flex;flex-direction:column}.pane{max-height:44vh;min-height:260px}.pane-reader{min-height:420px}.pane-resize-handle{display:none}}@media (max-width: 560px){.app-shell-header{align-items:flex-start;gap:8px}.app-header-username{display:none}.app-header-actions{flex-wrap:wrap;justify-content:flex-end}.message-reader{padding:12px}.auth-card{padding:22px}}