:root{--primary-color: #2E7D32;--primary-light: #4CAF50;--primary-dark: #1B5E20;--secondary-color: #0288D1;--secondary-light: #29B6F6;--secondary-dark: #01579B;--accent-color: #FFC107;--text-main: #212121;--text-secondary: #757575;--text-light: #FFFFFF;--bg-body: #F5F7FA;--bg-card: #FFFFFF;--bg-footer: #263238;--shadow-sm: 0 2px 4px rgba(0,0,0,.05);--shadow-md: 0 4px 8px rgba(0,0,0,.1);--shadow-lg: 0 8px 16px rgba(0,0,0,.15);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 16px;--radius-full: 9999px;--container-width: 1200px;--header-height: 70px;--font-heading: "Roboto", "Inter", sans-serif;--font-body: "Open Sans", "Inter", sans-serif;--transition: all .3s ease}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-body);background-color:var(--bg-body);color:var(--text-main);line-height:1.6;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.2;margin-bottom:1rem}a{text-decoration:none;color:inherit;transition:var(--transition)}button{cursor:pointer;border:none;font-family:inherit;transition:var(--transition)}.container{max-width:var(--container-width);margin:0 auto;padding:0 20px}.text-center{text-align:center}.flex{display:flex}.justify-between{justify-content:space-between}.items-center{align-items:center}.grid{display:grid}.hidden{display:none}.btn{display:inline-block;padding:10px 24px;border-radius:var(--radius-full);font-weight:600;font-size:1rem}.btn-primary{background-color:var(--primary-color);color:var(--text-light)}.btn-primary:hover{background-color:var(--primary-dark)}.btn-secondary{background-color:var(--secondary-color);color:var(--text-light)}.btn-secondary:hover{background-color:var(--secondary-dark)}.section{padding:80px 0}