:root{--bg-body: #F3F4F6;--bg-card: #ffffff;--text-main: #1F2937;--text-muted: #6B7280;--navbar-bg: rgba(255, 255, 255, .95);--shadow-color: rgba(0,0,0,.05);--primary: #4F46E5;--primary-light: rgba(79, 70, 229, .1);--white: #ffffff;--font-main: "Poppins", sans-serif}body[data-theme=dark]{--bg-body: #111827;--bg-card: #1F2937;--text-main: #F9FAFB;--text-muted: #9CA3AF;--navbar-bg: rgba(31, 41, 55, .95);--shadow-color: rgba(0,0,0,.5)}body{margin:0;font-family:var(--font-main);background-color:var(--bg-body);color:var(--text-main);transition:background-color .3s ease,color .3s ease}