:root{--bg-color: #f8f9fa;--text-color: #212529;--heading-color: #212529;--header-bg: #ffffff;--header-border: #eeeeee;--card-bg: #ffffff;--card-border: #e9ecef;--surface-bg: #f8f9fa;--surface-border: #e9ecef;--surface-soft-bg: #f3f5f7;--shadow-color: rgba(0, 0, 0, .08);--shadow-soft-color: rgba(0, 0, 0, .04);--danger-color: #dc3545;--danger-bg: #f8d7da;--danger-border: #f5c2c7;--text-muted: #6c757d;--placeholder-color: #adb5bd;--primary-color: #0d6efd;--primary-hover: #0b5ed7;--button-disabled-bg: #6c757d;--secondary-btn-bg: #e83e8c;--step-number-text: #ffffff}[data-theme=dark]{--bg-color: #121212;--text-color: #e0e0e0;--heading-color: #f1f3f5;--header-bg: #1e1e1e;--header-border: #333333;--card-bg: #1e1e1e;--card-border: #333333;--surface-bg: #171a1d;--surface-border: #32363b;--surface-soft-bg: #202429;--shadow-color: rgba(0, 0, 0, .35);--shadow-soft-color: rgba(0, 0, 0, .22);--danger-color: #ff8a95;--danger-bg: #3d1f24;--danger-border: #6a2b35;--text-muted: #9e9e9e;--placeholder-color: #8d959d;--primary-color: #3f8cff;--primary-hover: #5c9eff;--button-disabled-bg: #515961;--secondary-btn-bg: #cc4c88;--step-number-text: #f8f9fa}body{margin:0;background-color:var(--bg-color);color:var(--text-color);transition:background-color .3s,color .3s}