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16px}.mb-compose-label{width:52px;font-size:.75rem}.mb-compose-replyto-banner{flex-direction:column;align-items:flex-start;gap:2px;padding:8px 16px;font-size:.7rem}.mb-compose-footer{padding:10px 16px calc(12px + env(safe-area-inset-bottom,0px))}.mb-compose-submit-btn{padding:10px 16px;font-size:.8125rem}.mb-attachment-chip{width:100%;max-width:100%}}:root{--mb-primary:#06f;--mb-primary-hover:#0052cc;--mb-primary-active:#003d99;--mb-primary-light:#ebf3ff;--mb-primary-muted:#0066ff14;--mb-navy:#0b192c;--mb-navy-light:#1e293b;--mb-navy-muted:#334155;--mb-bg-app:#f8fafc;--mb-surface-card:#fff;--mb-surface-hover:#f1f5f9;--mb-surface-active:#e2e8f0;--mb-surface-sidebar:#fff;--mb-border:#e2e8f0;--mb-border-hover:#cbd5e1;--mb-border-focus:#06f;--mb-text-primary:#0f172a;--mb-text-secondary:#475569;--mb-text-muted:#94a3b8;--mb-text-inverse:#fff;--mb-success:#10b981;--mb-success-light:#ecfdf5;--mb-warning:#f59e0b;--mb-warning-light:#fffbeb;--mb-danger:#ef4444;--mb-danger-light:#fef2f2;--mb-shadow-sm:0 1px 2px 0 #0f172a0d;--mb-shadow-md:0 4px 6px -1px #0f172a14, 0 2px 4px -2px #0f172a0a;--mb-shadow-lg:0 10px 15px -3px #0f172a14, 0 4px 6px -4px #0f172a08;--mb-radius-sm:6px;--mb-radius-md:10px;--mb-radius-lg:14px;--mb-radius-full:9999px;--mb-transition-fast:.15s 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