:root{--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--bg-tertiary: #e9ecef;--text-primary: #212529;--text-secondary: #495057;--accent-primary: #0077b6;--accent-dark: #023e8a;--accent-light: #90e0ef;--card-bg: #ffffff;--shadow-color: rgba(0, 0, 0, .1)}.dark-theme{--bg-primary: #121212;--bg-secondary: #1e1e1e;--bg-tertiary: #2d2d2d;--text-primary: #f8f9fa;--text-secondary: #adb5bd;--accent-primary: #48cae4;--accent-dark: #00b4d8;--accent-light: #caf0f8;--card-bg: #1e1e1e;--shadow-color: rgba(0, 0, 0, .3)}body{background-color:var(--bg-primary);color:var(--text-primary);transition:background-color .3s ease,color .3s ease}