Green Building Education — Learn to Build Better :root--bg:#f7faf9;--card:#ffffff;--accent:#2b8a7e;--text:#1e293b bodyfont-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial; background:var(--bg); color:var(--text); margin:0; line-height:1.6 .containermax-width:1000px;margin:32px auto;padding