:root,[data-theme="default"]{--primary-color:#2878FF;--primary-hover:#1d60d5;--primary-light:rgba(40,120,255,0.1);--primary-lighter:rgba(40,120,255,0.05);--secondary-color:#444F74;--secondary-hover:#3a4463;--secondary-light:rgba(68,79,116,0.1);--gray-color:#B9BFCB;--gray-hover:#a5acbb;--gray-light:rgba(185,191,203,0.3);--gray-lighter:rgba(185,191,203,0.1);--dark-color:#444F74;--dark-hover:#3a4463;--light-color:#F5F7FA;--lighter-color:#FAFBFC;--success-color:#10B981;--success-hover:#0ea872;--warning-color:#F59E0B;--warning-hover:#e38e09;--error-color:#EF4444;--error-hover:#e23535;--info-color:#2878FF;--info-hover:#1d60d5;--bg-primary:#FFFFFF;--bg-secondary:#F5F7FA;--bg-tertiary:#FAFBFC;--bg-dark:#444F74;--bg-blue:#2878FF;--border-color:#B9BFCB;--border-light:rgba(185,191,203,0.3);--border-lighter:rgba(185,191,203,0.15);--border-dark:#444F74;--shadow-sm:0 1px 2px 0 rgba(68,79,116,0.05);--shadow-md:0 4px 6px -1px rgba(68,79,116,0.1),0 2px 4px -1px rgba(68,79,116,0.06);--shadow-lg:0 10px 15px -3px rgba(68,79,116,0.1),0 4px 6px -2px rgba(68,79,116,0.05);--shadow-xl:0 20px 25px -5px rgba(68,79,116,0.1),0 10px 10px -5px rgba(68,79,116,0.04);--shadow-2xl:0 25px 50px -12px rgba(68,79,116,0.25);--gradient-primary:linear-gradient(135deg,#2878FF 0%,#1a65e6 100%);--gradient-blue:linear-gradient(135deg,#2878FF 0%,#444F74 100%);--gradient-light:linear-gradient(135deg,#F5F7FA 0%,#FFFFFF 100%);}.btn-primary{background-color:var(--primary-color);color:var(--text-white);border:none;padding:10px 20px;border-radius:6px;transition:background-color 0.3s;}.btn-primary:hover{background-color:var(--primary-hover);}.btn-secondary{background-color:var(--secondary-color);color:var(--text-white);border:none;padding:10px 20px;border-radius:6px;transition:background-color 0.3s;}.btn-secondary:hover{background-color:var(--secondary-hover);}.btn-accent{background-color:var(--accent-color);color:var(--text-white);border:none;padding:10px 20px;border-radius:6px;transition:background-color 0.3s;}.btn-accent:hover{background-color:var(--accent-hover);}.text-primary{color:var(--text-primary);}.text-secondary{color:var(--text-secondary);}.text-tertiary{color:var(--text-tertiary);}.bg-primary{background-color:var(--bg-primary);}.bg-secondary{background-color:var(--bg-secondary);}.bg-tertiary{background-color:var(--bg-tertiary);}.border{border:1px solid var(--border-color);}.border-dark{border:1px solid var(--border-dark);}.shadow-sm{box-shadow:var(--shadow-sm);}.shadow-md{box-shadow:var(--shadow-md);}.shadow-lg{box-shadow:var(--shadow-lg);}.shadow-xl{box-shadow:var(--shadow-xl);}