:root{--primary-color:#0d6efd;--secondary-color:#6c757d;--background-color:#f8f9fa;--card-background:#fff;--text-color:#212529;--text-muted:#6c757d;--border-color:#eaeaea;--read-color:#adb5bd;--unread-color:#0d6efd;--shadow-sm:0 2px 4px rgba(0,0,0,.05);--shadow-md:0 4px 12px rgba(0,0,0,.05);--radius-sm:4px;--radius-md:8px}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text-color);background-color:var(--background-color)}.btn-primary{background-color:var(--primary-color);border-color:var(--primary-color)}.btn-primary:hover{filter:brightness(1.1)}.btn-outline-secondary{color:var(--secondary-color);border-color:var(--secondary-color)}.btn-outline-secondary:hover{background-color:var(--secondary-color);color:#fff}.paper-item{transition:all .2s ease}.paper-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.form-check-input:focus,.form-select:focus{border-color:var(--primary-color);box-shadow:0 0 0 .25rem rgba(13,110,253,.25)}.form-check-input:checked{background-color:var(--primary-color);border-color:var(--primary-color)}@keyframes spin{to{transform:rotate(1turn)}}.spinner-border{animation:spin 1s linear infinite}