:root{--primary: #1976d2;--primary-dark: #1565c0;--primary-light: #42a5f5;--text-primary: #212121;--text-secondary: #666666;--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--border-color: #e0e0e0;--sidebar-bg: #ffffff;--sidebar-width: 220px;--sidebar-collapsed-width: 64px;--sidebar-active-bg: rgba(25, 118, 210, .08);--sidebar-active-border: #7c4dff;--sidebar-hover-bg: rgba(0, 0, 0, .04);--button-text: #ffffff;--error-text: #d32f2f;--error-bg: #ffebee;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px}[dir=rtl]{text-align:right}[dir=rtl] .header__nav{flex-direction:row-reverse}[dir=rtl] input,[dir=rtl] textarea{text-align:right}[dir=rtl] .btn-icon-left{flex-direction:row-reverse}[dir=rtl] .btn-icon-left .icon{margin-left:var(--spacing-sm);margin-right:0}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--text-primary);background-color:var(--bg-primary);line-height:1.5}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}