:root{--cor-principal: #25d366;--cor-secundaria: #075e54;--cor-fundo: #f7f8f9;--cor-texto: #1f1f1f;--cor-borda: #e0e0e0;--cor-erro: #d32f2f}*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--cor-fundo);color:var(--cor-texto)}button{cursor:pointer;padding:10px 16px;border:none;border-radius:6px;background:var(--cor-principal);color:#fff;font-weight:500}button:disabled{opacity:.5;cursor:not-allowed}input,select{padding:10px 12px;border:1px solid var(--cor-borda);border-radius:6px;font-size:14px;width:100%}.card{background:#fff;border-radius:8px;padding:20px;box-shadow:0 1px 3px #00000014}.container{max-width:960px;margin:0 auto;padding:24px}.erro{color:var(--cor-erro);margin-top:8px;font-size:13px}a{color:var(--cor-secundaria)}